From 3e326ece9eba8184f5d48aa4fb87760a8f6f0f10 Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Mon, 22 May 2006 16:33:54 +0200 Subject: [PATCH 1/4] This patch adds USB storage support for the delta board. This is the first board to make use of a generic OHCI driver, that calls hooks for board dependant initialization. --- board/delta/delta.c | 52 + drivers/Makefile | 2 +- drivers/usb_ohci.c | 1642 +++++++++++++++++++++++++++ drivers/usb_ohci.h | 422 +++++++ include/asm-arm/arch-pxa/pxa-regs.h | 23 +- include/configs/delta.h | 11 +- include/da9030.h | 12 + 7 files changed, 2161 insertions(+), 3 deletions(-) create mode 100644 drivers/usb_ohci.c create mode 100644 drivers/usb_ohci.h diff --git a/board/delta/delta.c b/board/delta/delta.c index b127ac8cab..d9fe8cbf87 100644 --- a/board/delta/delta.c +++ b/board/delta/delta.c @@ -99,6 +99,52 @@ int board_late_init(void) } +/* board dependant usb stuff */ +int usb_board_init() +{ + /* + * Enable USB host clock. + */ + CKENA |= (CKENA_2_USBHOST | CKENA_20_UDC); + udelay(100); + + /* Configure Port 2 for Host (USB Client Registers) */ + UP2OCR = 0x3000c; + +#if 0 + GPIO2_2 = 0x801; /* USBHPEN - Alt. Fkt. 1 */ + GPIO3_2 = 0x801; /* USBHPWR - Alt. Fkt. 1 */ +#endif + + UHCHR |= UHCHR_FHR; + wait_ms(11); /* udelay(11); */ + UHCHR &= ~UHCHR_FHR; + + UHCHR |= UHCHR_FSBIR; + while (UHCHR & UHCHR_FSBIR) + udelay(1); + +#if 0 + UHCHR |= UHCHR_PCPL; /* USBHPEN is active low */ + UHCHR |= UHCHR_PSPL; /* USBHPWR is active low */ +#endif + + UHCHR &= ~UHCHR_SSEP0; + UHCHR &= ~UHCHR_SSEP1; + UHCHR &= ~UHCHR_SSE; + + return 0; +} + +int usb_board_stop() +{ + /* may not want to do this */ + /* CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); */ + + return 0; +} + + /* * Magic Key Handling, mainly copied from board/lwmon/lwmon.c */ @@ -324,6 +370,12 @@ static void init_DA9030() return; } + val = 0x80; + if(i2c_write(addr, IRQ_MASK_B, 1, &val, 1)) { + printf("Error accessing DA9030 via i2c.\n"); + return; + } + i2c_reg_write(addr, REG_CONTROL_1_97, 0xfd); /* disable LDO1, enable LDO6 */ i2c_reg_write(addr, LDO2_3, 0xd1); /* LDO2 =1,9V, LDO3=3,1V */ i2c_reg_write(addr, LDO4_5, 0xcc); /* LDO2 =1,9V, LDO3=3,1V */ diff --git a/drivers/Makefile b/drivers/Makefile index e6176ed86a..d5b6811829 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -46,7 +46,7 @@ OBJS = 3c589.o 5701rls.o ali512x.o \ sl811_usb.o sm501.o smc91111.o smiLynxEM.o \ status_led.o sym53c8xx.o \ ti_pci1410a.o tigon3.o tsec.o \ - usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o \ + usb_ohci.o usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o \ videomodes.o w83c553f.o \ ks8695eth.o diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c new file mode 100644 index 0000000000..4065489f3e --- /dev/null +++ b/drivers/usb_ohci.c @@ -0,0 +1,1642 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200. + * + * (C) Copyright 2003 + * Gary Jennejohn, DENX Software Engineering + * + * Note: Much of this code has been derived from Linux 2.4 + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2002 David Brownell + * + * Modified for the MP2USB by (C) Copyright 2005 Eric Benard + * ebenard@eukrea.com - based on s3c24x0's driver + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +/* + * IMPORTANT NOTES + * 1 - you MUST define LITTLEENDIAN in the configuration file for the + * board or this driver will NOT work! + * 2 - this driver is intended for use with USB Mass Storage Devices + * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! + * 3 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG + * to activate workaround for bug #41 or this driver will NOT work! + */ + +#include +/* #include no PCI on the S3C24X0 */ + +#ifdef CONFIG_USB_OHCI + +#include + +#include +#include +#include "usb_ohci.h" + +/* #define OHCI_USE_NPS /\* force NoPowerSwitching mode *\/ */ +#undef OHCI_VERBOSE_DEBUG /* not always helpful */ + +/* For initializing controller (mask in an HCFS mode too) */ +#define OHCI_CONTROL_INIT \ + (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE + +#define readl(a) (*((vu_long *)(a))) +#define writel(a, b) (*((vu_long *)(b)) = ((vu_long)a)) + +#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) + +#undef DEBUG +#ifdef DEBUG +#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) +#else +#define dbg(format, arg...) do {} while(0) +#endif /* DEBUG */ +#define err(format, arg...) printf("ERROR: " format "\n", ## arg) +#undef SHOW_INFO +#ifdef SHOW_INFO +#define info(format, arg...) printf("INFO: " format "\n", ## arg) +#else +#define info(format, arg...) do {} while(0) +#endif + +#define m16_swap(x) swap_16(x) +#define m32_swap(x) swap_32(x) + +/* global ohci_t */ +static ohci_t gohci; +/* this must be aligned to a 256 byte boundary */ +struct ohci_hcca ghcca[1]; +/* a pointer to the aligned storage */ +struct ohci_hcca *phcca; +/* this allocates EDs for all possible endpoints */ +struct ohci_device ohci_dev; +/* urb_priv */ +urb_priv_t urb_priv; +/* RHSC flag */ +int got_rhsc; +/* device which was disconnected */ +struct usb_device *devgone; + +/*-------------------------------------------------------------------------*/ + +/* AMD-756 (D2 rev) reports corrupt register contents in some cases. + * The erratum (#4) description is incorrect. AMD's workaround waits + * till some bits (mostly reserved) are clear; ok for all revs. + */ +#define OHCI_QUIRK_AMD756 0xabcd +#define read_roothub(hc, register, mask) ({ \ + u32 temp = readl (&hc->regs->roothub.register); \ + if (hc->flags & OHCI_QUIRK_AMD756) \ + while (temp & mask) \ + temp = readl (&hc->regs->roothub.register); \ + temp; }) + +static u32 roothub_a (struct ohci *hc) + { return read_roothub (hc, a, 0xfc0fe000); } +static inline u32 roothub_b (struct ohci *hc) + { return readl (&hc->regs->roothub.b); } +static inline u32 roothub_status (struct ohci *hc) + { return readl (&hc->regs->roothub.status); } +static u32 roothub_portstatus (struct ohci *hc, int i) + { return read_roothub (hc, portstatus [i], 0xffe0fce0); } + + +/* forward declaration */ +static int hc_interrupt (void); +static void +td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); + +/*-------------------------------------------------------------------------* + * URB support functions + *-------------------------------------------------------------------------*/ + +/* free HCD-private data associated with this URB */ + +static void urb_free_priv (urb_priv_t * urb) +{ + int i; + int last; + struct td * td; + + last = urb->length - 1; + if (last >= 0) { + for (i = 0; i <= last; i++) { + td = urb->td[i]; + if (td) { + td->usb_dev = NULL; + urb->td[i] = NULL; + } + } + } +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +static int sohci_get_current_frame_number (struct usb_device * dev); + +/* debug| print the main components of an URB + * small: 0) header + data packets 1) just header */ + +static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, char * str, int small) +{ + urb_priv_t * purb = &urb_priv; + + dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", + str, + sohci_get_current_frame_number (dev), + usb_pipedevice (pipe), + usb_pipeendpoint (pipe), + usb_pipeout (pipe)? 'O': 'I', + usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): + (usb_pipecontrol (pipe)? "CTRL": "BULK"), + purb->actual_length, + transfer_len, dev->status); +#ifdef OHCI_VERBOSE_DEBUG + if (!small) { + int i, len; + + if (usb_pipecontrol (pipe)) { + printf (__FILE__ ": cmd(8):"); + for (i = 0; i < 8 ; i++) + printf (" %02x", ((__u8 *) setup) [i]); + printf ("\n"); + } + if (transfer_len > 0 && buffer) { + printf (__FILE__ ": data(%d/%d):", + purb->actual_length, + transfer_len); + len = usb_pipeout (pipe)? + transfer_len: purb->actual_length; + for (i = 0; i < 16 && i < len; i++) + printf (" %02x", ((__u8 *) buffer) [i]); + printf ("%s\n", i < len? "...": ""); + } + } +#endif +} + +/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ +void ep_print_int_eds (ohci_t *ohci, char * str) { + int i, j; + __u32 * ed_p; + for (i= 0; i < 32; i++) { + j = 5; + ed_p = &(ohci->hcca->int_table [i]); + if (*ed_p == 0) + continue; + printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); + while (*ed_p != 0 && j--) { + ed_t *ed = (ed_t *)m32_swap(ed_p); + printf (" ed: %4x;", ed->hwINFO); + ed_p = &ed->hwNextED; + } + printf ("\n"); + } +} + +static void ohci_dump_intr_mask (char *label, __u32 mask) +{ + dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", + label, + mask, + (mask & OHCI_INTR_MIE) ? " MIE" : "", + (mask & OHCI_INTR_OC) ? " OC" : "", + (mask & OHCI_INTR_RHSC) ? " RHSC" : "", + (mask & OHCI_INTR_FNO) ? " FNO" : "", + (mask & OHCI_INTR_UE) ? " UE" : "", + (mask & OHCI_INTR_RD) ? " RD" : "", + (mask & OHCI_INTR_SF) ? " SF" : "", + (mask & OHCI_INTR_WDH) ? " WDH" : "", + (mask & OHCI_INTR_SO) ? " SO" : "" + ); +} + +static void maybe_print_eds (char *label, __u32 value) +{ + ed_t *edp = (ed_t *)value; + + if (value) { + dbg ("%s %08x", label, value); + dbg ("%08x", edp->hwINFO); + dbg ("%08x", edp->hwTailP); + dbg ("%08x", edp->hwHeadP); + dbg ("%08x", edp->hwNextED); + } +} + +static char * hcfs2string (int state) +{ + switch (state) { + case OHCI_USB_RESET: return "reset"; + case OHCI_USB_RESUME: return "resume"; + case OHCI_USB_OPER: return "operational"; + case OHCI_USB_SUSPEND: return "suspend"; + } + return "?"; +} + +/* dump control and status registers */ +static void ohci_dump_status (ohci_t *controller) +{ + struct ohci_regs *regs = controller->regs; + __u32 temp; + + temp = readl (®s->revision) & 0xff; + if (temp != 0x10) + dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); + + temp = readl (®s->control); + dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, + (temp & OHCI_CTRL_RWE) ? " RWE" : "", + (temp & OHCI_CTRL_RWC) ? " RWC" : "", + (temp & OHCI_CTRL_IR) ? " IR" : "", + hcfs2string (temp & OHCI_CTRL_HCFS), + (temp & OHCI_CTRL_BLE) ? " BLE" : "", + (temp & OHCI_CTRL_CLE) ? " CLE" : "", + (temp & OHCI_CTRL_IE) ? " IE" : "", + (temp & OHCI_CTRL_PLE) ? " PLE" : "", + temp & OHCI_CTRL_CBSR + ); + + temp = readl (®s->cmdstatus); + dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, + (temp & OHCI_SOC) >> 16, + (temp & OHCI_OCR) ? " OCR" : "", + (temp & OHCI_BLF) ? " BLF" : "", + (temp & OHCI_CLF) ? " CLF" : "", + (temp & OHCI_HCR) ? " HCR" : "" + ); + + ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); + ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); + + maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); + + maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); + maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); + + maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); + maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); + + maybe_print_eds ("donehead", readl (®s->donehead)); +} + +static void ohci_dump_roothub (ohci_t *controller, int verbose) +{ + __u32 temp, ndp, i; + + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); +#ifdef CONFIG_AT91C_PQFP_UHPBUG + ndp = (ndp == 2) ? 1:0; +#endif +#if 0 /* def CONFIG_CPU_MONAHANS */ + data_buf [2] = (data_buf [2] == 2) ? 3:0; +#endif + if (verbose) { + dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, + ((temp & RH_A_POTPGT) >> 24) & 0xff, + (temp & RH_A_NOCP) ? " NOCP" : "", + (temp & RH_A_OCPM) ? " OCPM" : "", + (temp & RH_A_DT) ? " DT" : "", + (temp & RH_A_NPS) ? " NPS" : "", + (temp & RH_A_PSM) ? " PSM" : "", + ndp + ); + temp = roothub_b (controller); + dbg ("roothub.b: %08x PPCM=%04x DR=%04x", + temp, + (temp & RH_B_PPCM) >> 16, + (temp & RH_B_DR) + ); + temp = roothub_status (controller); + dbg ("roothub.status: %08x%s%s%s%s%s%s", + temp, + (temp & RH_HS_CRWE) ? " CRWE" : "", + (temp & RH_HS_OCIC) ? " OCIC" : "", + (temp & RH_HS_LPSC) ? " LPSC" : "", + (temp & RH_HS_DRWE) ? " DRWE" : "", + (temp & RH_HS_OCI) ? " OCI" : "", + (temp & RH_HS_LPS) ? " LPS" : "" + ); + } + + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", + i, + temp, + (temp & RH_PS_PRSC) ? " PRSC" : "", + (temp & RH_PS_OCIC) ? " OCIC" : "", + (temp & RH_PS_PSSC) ? " PSSC" : "", + (temp & RH_PS_PESC) ? " PESC" : "", + (temp & RH_PS_CSC) ? " CSC" : "", + + (temp & RH_PS_LSDA) ? " LSDA" : "", + (temp & RH_PS_PPS) ? " PPS" : "", + (temp & RH_PS_PRS) ? " PRS" : "", + (temp & RH_PS_POCI) ? " POCI" : "", + (temp & RH_PS_PSS) ? " PSS" : "", + + (temp & RH_PS_PES) ? " PES" : "", + (temp & RH_PS_CCS) ? " CCS" : "" + ); + } +} + +static void ohci_dump (ohci_t *controller, int verbose) +{ + dbg ("OHCI controller usb-%s state", controller->slot_name); + + /* dumps some of the state we know about */ + ohci_dump_status (controller); + if (verbose) + ep_print_int_eds (controller, "hcca"); + dbg ("hcca frame #%04x", controller->hcca->frame_no); + ohci_dump_roothub (controller, 1); +} + + +#endif /* DEBUG */ + +/*-------------------------------------------------------------------------* + * Interface functions (URB) + *-------------------------------------------------------------------------*/ + +/* get a transfer request */ + +int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + ohci_t *ohci; + ed_t * ed; + urb_priv_t *purb_priv; + int i, size = 0; + + ohci = &gohci; + + /* when controller's hung, permit only roothub cleanup attempts + * such as powering down ports */ + if (ohci->disabled) { + err("sohci_submit_job: EPIPE"); + return -1; + } + + /* every endpoint has a ed, locate and fill it */ + if (!(ed = ep_add_ed (dev, pipe))) { + err("sohci_submit_job: ENOMEM"); + return -1; + } + + /* for the private part of the URB we need the number of TDs (size) */ + switch (usb_pipetype (pipe)) { + case PIPE_BULK: /* one TD for every 4096 Byte */ + size = (transfer_len - 1) / 4096 + 1; + break; + case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ + size = (transfer_len == 0)? 2: + (transfer_len - 1) / 4096 + 3; + break; + } + + if (size >= (N_URB_TD - 1)) { + err("need %d TDs, only have %d", size, N_URB_TD); + return -1; + } + purb_priv = &urb_priv; + purb_priv->pipe = pipe; + + /* fill the private part of the URB */ + purb_priv->length = size; + purb_priv->ed = ed; + purb_priv->actual_length = 0; + + /* allocate the TDs */ + /* note that td[0] was allocated in ep_add_ed */ + for (i = 0; i < size; i++) { + purb_priv->td[i] = td_alloc (dev); + if (!purb_priv->td[i]) { + purb_priv->length = i; + urb_free_priv (purb_priv); + err("sohci_submit_job: ENOMEM"); + return -1; + } + } + + if (ed->state == ED_NEW || (ed->state & ED_DEL)) { + urb_free_priv (purb_priv); + err("sohci_submit_job: EINVAL"); + return -1; + } + + /* link the ed into a chain if is not already */ + if (ed->state != ED_OPER) + ep_link (ohci, ed); + + /* fill the TDs and link it to the ed */ + td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +/* tell us the current USB frame number */ + +static int sohci_get_current_frame_number (struct usb_device *usb_dev) +{ + ohci_t *ohci = &gohci; + + return m16_swap (ohci->hcca->frame_no); +} +#endif + +/*-------------------------------------------------------------------------* + * ED handling functions + *-------------------------------------------------------------------------*/ + +/* link an ed into one of the HC chains */ + +static int ep_link (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->state = ED_OPER; + + switch (ed->type) { + case PIPE_CONTROL: + ed->hwNextED = 0; + if (ohci->ed_controltail == NULL) { + writel (ed, &ohci->regs->ed_controlhead); + } else { + ohci->ed_controltail->hwNextED = m32_swap (ed); + } + ed->ed_prev = ohci->ed_controltail; + if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_controltail = edi; + break; + + case PIPE_BULK: + ed->hwNextED = 0; + if (ohci->ed_bulktail == NULL) { + writel (ed, &ohci->regs->ed_bulkhead); + } else { + ohci->ed_bulktail->hwNextED = m32_swap (ed); + } + ed->ed_prev = ohci->ed_bulktail; + if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_bulktail = edi; + break; + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* unlink an ed from one of the HC chains. + * just the link to the ed is unlinked. + * the link from the ed still points to another operational ed or 0 + * so the HC can eventually finish the processing of the unlinked ed */ + +static int ep_unlink (ohci_t *ohci, ed_t *ed) +{ + ed->hwINFO |= m32_swap (OHCI_ED_SKIP); + + switch (ed->type) { + case PIPE_CONTROL: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_controltail == ed) { + ohci->ed_controltail = ed->ed_prev; + } else { + ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + + case PIPE_BULK: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_bulktail == ed) { + ohci->ed_bulktail = ed->ed_prev; + } else { + ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + } + ed->state = ED_UNLINK; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, + * but the USB stack is a little bit stateless so we do it at every transaction + * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK + * in all other cases the state is left unchanged + * the ed info fields are setted anyway even though most of them should not change */ + +static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) +{ + td_t *td; + ed_t *ed_ret; + volatile ed_t *ed; + + ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | + (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; + + if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { + err("ep_add_ed: pending delete"); + /* pending delete request */ + return NULL; + } + + if (ed->state == ED_NEW) { + ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */ + /* dummy td; end of td list for ed */ + td = td_alloc (usb_dev); + ed->hwTailP = m32_swap (td); + ed->hwHeadP = ed->hwTailP; + ed->state = ED_UNLINK; + ed->type = usb_pipetype (pipe); + ohci_dev.ed_cnt++; + } + + ed->hwINFO = m32_swap (usb_pipedevice (pipe) + | usb_pipeendpoint (pipe) << 7 + | (usb_pipeisoc (pipe)? 0x8000: 0) + | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) + | usb_pipeslow (pipe) << 13 + | usb_maxpacket (usb_dev, pipe) << 16); + + return ed_ret; +} + +/*-------------------------------------------------------------------------* + * TD handling functions + *-------------------------------------------------------------------------*/ + +/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ + +static void td_fill (ohci_t *ohci, unsigned int info, + void *data, int len, + struct usb_device *dev, int index, urb_priv_t *urb_priv) +{ + volatile td_t *td, *td_pt; +#ifdef OHCI_FILL_TRACE + int i; +#endif + + if (index > urb_priv->length) { + err("index > length"); + return; + } + /* use this td as the next dummy */ + td_pt = urb_priv->td [index]; + td_pt->hwNextTD = 0; + + /* fill the old dummy TD */ + td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf); + + td->ed = urb_priv->ed; + td->next_dl_td = NULL; + td->index = index; + td->data = (__u32)data; +#ifdef OHCI_FILL_TRACE + if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe)) { + for (i = 0; i < len; i++) + printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]); + printf("\n"); + } +#endif + if (!len) + data = 0; + + td->hwINFO = m32_swap (info); + td->hwCBP = m32_swap (data); + if (data) + td->hwBE = m32_swap (data + len - 1); + else + td->hwBE = 0; + td->hwNextTD = m32_swap (td_pt); + td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000); + + /* append to queue */ + td->ed->hwTailP = td->hwNextTD; +} + +/*-------------------------------------------------------------------------*/ + +/* prepare all TDs of a transfer */ + +static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) +{ + ohci_t *ohci = &gohci; + int data_len = transfer_len; + void *data; + int cnt = 0; + __u32 info = 0; + unsigned int toggle = 0; + + /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ + if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { + toggle = TD_T_TOGGLE; + } else { + toggle = TD_T_DATA0; + usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); + } + urb->td_cnt = 0; + if (data_len) + data = buffer; + else + data = 0; + + switch (usb_pipetype (pipe)) { + case PIPE_BULK: + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; + while(data_len > 4096) { + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); + data += 4096; data_len -= 4096; cnt++; + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); + cnt++; + + if (!ohci->sleeping) + writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ + break; + + case PIPE_CONTROL: + info = TD_CC | TD_DP_SETUP | TD_T_DATA0; + td_fill (ohci, info, setup, 8, dev, cnt++, urb); + if (data_len > 0) { + info = usb_pipeout (pipe)? + TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; + /* NOTE: mishandles transfers >8K, some >4K */ + td_fill (ohci, info, data, data_len, dev, cnt++, urb); + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; + td_fill (ohci, info, data, 0, dev, cnt++, urb); + if (!ohci->sleeping) + writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ + break; + } + if (urb->length != cnt) + dbg("TD LENGTH %d != CNT %d", urb->length, cnt); +} + +/*-------------------------------------------------------------------------* + * Done List handling functions + *-------------------------------------------------------------------------*/ + + +/* calculate the transfer length and update the urb */ + +static void dl_transfer_length(td_t * td) +{ + __u32 tdINFO, tdBE, tdCBP; + urb_priv_t *lurb_priv = &urb_priv; + + tdINFO = m32_swap (td->hwINFO); + tdBE = m32_swap (td->hwBE); + tdCBP = m32_swap (td->hwCBP); + + + if (!(usb_pipetype (lurb_priv->pipe) == PIPE_CONTROL && + ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { + if (tdBE != 0) { + if (td->hwCBP == 0) + lurb_priv->actual_length += tdBE - td->data + 1; + else + lurb_priv->actual_length += tdCBP - td->data; + } + } +} + +/*-------------------------------------------------------------------------*/ + +/* replies to the request have to be on a FIFO basis so + * we reverse the reversed done-list */ + +static td_t * dl_reverse_done_list (ohci_t *ohci) +{ + __u32 td_list_hc; + td_t *td_rev = NULL; + td_t *td_list = NULL; + urb_priv_t *lurb_priv = NULL; + + td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0; + ohci->hcca->done_head = 0; + + while (td_list_hc) { + td_list = (td_t *)td_list_hc; + + if (TD_CC_GET (m32_swap (td_list->hwINFO))) { + lurb_priv = &urb_priv; + dbg(" USB-error/status: %x : %p", + TD_CC_GET (m32_swap (td_list->hwINFO)), td_list); + if (td_list->ed->hwHeadP & m32_swap (0x1)) { + if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { + td_list->ed->hwHeadP = + (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) | + (td_list->ed->hwHeadP & m32_swap (0x2)); + lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; + } else + td_list->ed->hwHeadP &= m32_swap (0xfffffff2); + } + } + + td_list->next_dl_td = td_rev; + td_rev = td_list; + td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0; + } + return td_list; +} + +/*-------------------------------------------------------------------------*/ + +/* td done list */ +static int dl_done_list (ohci_t *ohci, td_t *td_list) +{ + td_t *td_list_next = NULL; + ed_t *ed; + int cc = 0; + int stat = 0; + /* urb_t *urb; */ + urb_priv_t *lurb_priv; + __u32 tdINFO, edHeadP, edTailP; + + while (td_list) { + td_list_next = td_list->next_dl_td; + + lurb_priv = &urb_priv; + tdINFO = m32_swap (td_list->hwINFO); + + ed = td_list->ed; + + dl_transfer_length(td_list); + + /* error code of transfer */ + cc = TD_CC_GET (tdINFO); + if (cc != 0) { + dbg("ConditionCode %#x", cc); + stat = cc_to_error[cc]; + } + + if (ed->state != ED_NEW) { + edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0; + edTailP = m32_swap (ed->hwTailP); + + /* unlink eds if they are not busy */ + if ((edHeadP == edTailP) && (ed->state == ED_OPER)) + ep_unlink (ohci, ed); + } + + td_list = td_list_next; + } + return stat; +} + +/*-------------------------------------------------------------------------* + * Virtual Root Hub + *-------------------------------------------------------------------------*/ + +/* Device descriptor */ +static __u8 root_hub_dev_des[] = +{ + 0x12, /* __u8 bLength; */ + 0x01, /* __u8 bDescriptorType; Device */ + 0x10, /* __u16 bcdUSB; v1.1 */ + 0x01, + 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ + 0x00, /* __u8 bDeviceSubClass; */ + 0x00, /* __u8 bDeviceProtocol; */ + 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ + 0x00, /* __u16 idVendor; */ + 0x00, + 0x00, /* __u16 idProduct; */ + 0x00, + 0x00, /* __u16 bcdDevice; */ + 0x00, + 0x00, /* __u8 iManufacturer; */ + 0x01, /* __u8 iProduct; */ + 0x00, /* __u8 iSerialNumber; */ + 0x01 /* __u8 bNumConfigurations; */ +}; + + +/* Configuration descriptor */ +static __u8 root_hub_config_des[] = +{ + 0x09, /* __u8 bLength; */ + 0x02, /* __u8 bDescriptorType; Configuration */ + 0x19, /* __u16 wTotalLength; */ + 0x00, + 0x01, /* __u8 bNumInterfaces; */ + 0x01, /* __u8 bConfigurationValue; */ + 0x00, /* __u8 iConfiguration; */ + 0x40, /* __u8 bmAttributes; + Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ + 0x00, /* __u8 MaxPower; */ + + /* interface */ + 0x09, /* __u8 if_bLength; */ + 0x04, /* __u8 if_bDescriptorType; Interface */ + 0x00, /* __u8 if_bInterfaceNumber; */ + 0x00, /* __u8 if_bAlternateSetting; */ + 0x01, /* __u8 if_bNumEndpoints; */ + 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ + 0x00, /* __u8 if_bInterfaceSubClass; */ + 0x00, /* __u8 if_bInterfaceProtocol; */ + 0x00, /* __u8 if_iInterface; */ + + /* endpoint */ + 0x07, /* __u8 ep_bLength; */ + 0x05, /* __u8 ep_bDescriptorType; Endpoint */ + 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ + 0x00, + 0xff /* __u8 ep_bInterval; 255 ms */ +}; + +static unsigned char root_hub_str_index0[] = +{ + 0x04, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 0x09, /* __u8 lang ID */ + 0x04, /* __u8 lang ID */ +}; + +static unsigned char root_hub_str_index1[] = +{ + 28, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 'O', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'C', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'I', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 't', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'u', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'b', /* __u8 Unicode */ + 0, /* __u8 Unicode */ +}; + +/* Hub class-specific descriptor is constructed dynamically */ + + +/*-------------------------------------------------------------------------*/ + +#define OK(x) len = (x); break +#ifdef DEBUG +#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} +#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} +#else +#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) +#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) +#endif +#define RD_RH_STAT roothub_status(&gohci) +#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) + +/* request to virtual root hub */ + +int rh_check_port_status(ohci_t *controller) +{ + __u32 temp, ndp, i; + int res; + + res = -1; + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); +#ifdef CONFIG_AT91C_PQFP_UHPBUG + ndp = (ndp == 2) ? 1:0; +#endif + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + /* check for a device disconnect */ + if (((temp & (RH_PS_PESC | RH_PS_CSC)) == + (RH_PS_PESC | RH_PS_CSC)) && + ((temp & RH_PS_CCS) == 0)) { + res = i; + break; + } + } + return res; +} + +static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *cmd) +{ + void * data = buffer; + int leni = transfer_len; + int len = 0; + int stat = 0; + __u32 datab[4]; + __u8 *data_buf = (__u8 *)datab; + __u16 bmRType_bReq; + __u16 wValue; + __u16 wIndex; + __u16 wLength; + +#ifdef DEBUG +urb_priv.actual_length = 0; +pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) { + info("Root-Hub submit IRQ: NOT implemented"); + return 0; + } + + bmRType_bReq = cmd->requesttype | (cmd->request << 8); + wValue = m16_swap (cmd->value); + wIndex = m16_swap (cmd->index); + wLength = m16_swap (cmd->length); + + info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", + dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); + + switch (bmRType_bReq) { + /* Request Destination: + without flags: Device, + RH_INTERFACE: interface, + RH_ENDPOINT: endpoint, + RH_CLASS means HUB here, + RH_OTHER | RH_CLASS almost ever means HUB_PORT here + */ + + case RH_GET_STATUS: + *(__u16 *) data_buf = m16_swap (1); OK (2); + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_CLASS: + *(__u32 *) data_buf = m32_swap ( + RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); + OK (4); + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); + + case RH_CLEAR_FEATURE | RH_ENDPOINT: + switch (wValue) { + case (RH_ENDPOINT_STALL): OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_CLASS: + switch (wValue) { + case RH_C_HUB_LOCAL_POWER: + OK(0); + case (RH_C_HUB_OVER_CURRENT): + WR_RH_STAT(RH_HS_OCIC); OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_POCI); OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); + case (RH_C_PORT_CONNECTION): + WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); + case (RH_C_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_PESC); OK (0); + case (RH_C_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); + case (RH_C_PORT_OVER_CURRENT): + WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); + case (RH_C_PORT_RESET): + WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); + } + break; + + case RH_SET_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); + case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PRS); + OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); + case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PES ); + OK (0); + } + break; + + case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); + + case RH_GET_DESCRIPTOR: + switch ((wValue & 0xff00) >> 8) { + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_dev_des), + wLength)); + data_buf = root_hub_dev_des; OK(len); + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_config_des), + wLength)); + data_buf = root_hub_config_des; OK(len); + case (0x03): /* string descriptors */ + if(wValue==0x0300) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index0), + wLength)); + data_buf = root_hub_str_index0; + OK(len); + } + if(wValue==0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index1), + wLength)); + data_buf = root_hub_str_index1; + OK(len); + } + default: + stat = USB_ST_STALLED; + } + break; + + case RH_GET_DESCRIPTOR | RH_CLASS: + { + __u32 temp = roothub_a (&gohci); + + data_buf [0] = 9; /* min length; */ + data_buf [1] = 0x29; + data_buf [2] = temp & RH_A_NDP; +#ifdef CONFIG_AT91C_PQFP_UHPBUG + data_buf [2] = (data_buf [2] == 2) ? 1:0; +#endif +#if 0 /* def CONFIG_CPU_MONAHANS */ + data_buf [2] = (data_buf [2] == 2) ? 3:0; +#endif + + data_buf [3] = 0; + if (temp & RH_A_PSM) /* per-port power switching? */ + data_buf [3] |= 0x1; + if (temp & RH_A_NOCP) /* no overcurrent reporting? */ + data_buf [3] |= 0x10; +#if 1 + else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ + data_buf [3] |= 0x8; +#endif + + /* corresponds to data_buf[4-7] */ + datab [1] = 0; + data_buf [5] = (temp & RH_A_POTPGT) >> 24; + temp = roothub_b (&gohci); + data_buf [7] = temp & RH_B_DR; + if (data_buf [2] < 7) { + data_buf [8] = 0xff; + } else { + data_buf [0] += 2; + data_buf [8] = (temp & RH_B_DR) >> 8; + data_buf [10] = data_buf [9] = 0xff; + } + + len = min_t(unsigned int, leni, + min_t(unsigned int, data_buf [0], wLength)); + OK (len); + } + + case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); + + case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); + + default: + dbg ("unsupported root hub command"); + stat = USB_ST_STALLED; + } + +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#else + wait_ms(1); +#endif + + len = min_t(int, len, leni); + if (data != data_buf) + memcpy (data, data_buf, len); + dev->act_len = len; + dev->status = stat; + +#ifdef DEBUG + if (transfer_len) + urb_priv.actual_length = transfer_len; + pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); +#else + wait_ms(1); +#endif + + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/* common code for handling submit messages - used for all but root hub */ +/* accesses. */ +int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + int stat = 0; + int maxsize = usb_maxpacket(dev, pipe); + int timeout; + + /* device pulled? Shortcut the action. */ + if (devgone == dev) { + dev->status = USB_ST_CRC_ERR; + return 0; + } + +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if (!maxsize) { + err("submit_common_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + + if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) { + err("sohci_submit_job failed"); + return -1; + } + + wait_ms(10); + /* ohci_dump_status(&gohci); */ + + /* allow more time for a BULK device to react - some are slow */ +#define BULK_TO 5000 /* timeout in milliseconds */ + if (usb_pipetype (pipe) == PIPE_BULK) + timeout = BULK_TO; + else + timeout = 100; + + /* wait for it to complete */ + for (;;) { + /* check whether the controller is done */ + stat = hc_interrupt(); + if (stat < 0) { + stat = USB_ST_CRC_ERR; + break; + } + if (stat >= 0 && stat != 0xff) { + /* 0xff is returned for an SF-interrupt */ + break; + } + if (--timeout) { + wait_ms(1); + } else { + err("CTL:TIMEOUT "); + stat = USB_ST_CRC_ERR; + break; + } + } + /* we got an Root Hub Status Change interrupt */ + if (got_rhsc) { +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + got_rhsc = 0; + /* abuse timeout */ + timeout = rh_check_port_status(&gohci); + if (timeout >= 0) { +#if 0 /* this does nothing useful, but leave it here in case that changes */ + /* the called routine adds 1 to the passed value */ + usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); +#endif + /* + * XXX + * This is potentially dangerous because it assumes + * that only one device is ever plugged in! + */ + devgone = dev; + } + } + + dev->status = stat; + dev->act_len = transfer_len; + +#ifdef DEBUG + pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + + /* free TDs in urb_priv */ + urb_free_priv (&urb_priv); + return 0; +} + +/* submit routines called from usb.c */ +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len) +{ + info("submit_bulk_msg"); + return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); +} + +int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup) +{ + int maxsize = usb_maxpacket(dev, pipe); + + info("submit_control_msg"); +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if (!maxsize) { + err("submit_control_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { + gohci.rh.dev = dev; + /* root hub - redirect */ + return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, + setup); + } + + return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); +} + +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, int interval) +{ + info("submit_int_msg"); + return -1; +} + +/*-------------------------------------------------------------------------* + * HC functions + *-------------------------------------------------------------------------*/ + +/* reset the HC and BUS */ + +static int hc_reset (ohci_t *ohci) +{ + int timeout = 30; + int smm_timeout = 50; /* 0,5 sec */ + + dbg("%s\n", __FUNCTION__); + + if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ + writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ + info("USB HC TakeOver from SMM"); + while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { + wait_ms (10); + if (--smm_timeout == 0) { + err("USB HC TakeOver failed!"); + return -1; + } + } + } + + /* Disable HC interrupts */ + writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); + + dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n", + ohci->slot_name, + readl(&ohci->regs->control)); + + /* Reset USB (needed by some controllers) */ + writel (0, &ohci->regs->control); + + /* HC Reset requires max 10 us delay */ + writel (OHCI_HCR, &ohci->regs->cmdstatus); + while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { + if (--timeout == 0) { + err("USB HC reset timed out!"); + return -1; + } + udelay (1); + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* Start an OHCI controller, set the BUS operational + * enable interrupts + * connect the virtual root hub */ + +static int hc_start (ohci_t * ohci) +{ + __u32 mask; + unsigned int fminterval; + + ohci->disabled = 1; + + /* Tell the controller where the control and bulk lists are + * The lists are empty now. */ + + writel (0, &ohci->regs->ed_controlhead); + writel (0, &ohci->regs->ed_bulkhead); + + writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ + + fminterval = 0x2edf; + writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); + fminterval |= ((((fminterval - 210) * 6) / 7) << 16); + writel (fminterval, &ohci->regs->fminterval); + writel (0x628, &ohci->regs->lsthresh); + + /* start controller operations */ + ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; + ohci->disabled = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* disable all interrupts */ + mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | + OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | + OHCI_INTR_OC | OHCI_INTR_MIE); + writel (mask, &ohci->regs->intrdisable); + /* clear all interrupts */ + mask &= ~OHCI_INTR_MIE; + writel (mask, &ohci->regs->intrstatus); + /* Choose the interrupts we care about now - but w/o MIE */ + mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; + writel (mask, &ohci->regs->intrenable); + +#ifdef OHCI_USE_NPS + /* required for AMD-756 and some Mac platforms */ + writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, + &ohci->regs->roothub.a); + writel (RH_HS_LPSC, &ohci->regs->roothub.status); +#endif /* OHCI_USE_NPS */ + +#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) + /* POTPGT delay is bits 24-31, in 2 ms units. */ + mdelay ((roothub_a (ohci) >> 23) & 0x1fe); + + /* connect the virtual root hub */ + ohci->rh.devnum = 0; + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* an interrupt happens */ + +static int +hc_interrupt (void) +{ + ohci_t *ohci = &gohci; + struct ohci_regs *regs = ohci->regs; + int ints; + int stat = -1; + + if ((ohci->hcca->done_head != 0) && !(m32_swap (ohci->hcca->done_head) & 0x01)) { + ints = OHCI_INTR_WDH; + } else { + ints = readl (®s->intrstatus); + } + + /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ + + if (ints & OHCI_INTR_RHSC) { + got_rhsc = 1; + } + + if (ints & OHCI_INTR_UE) { + ohci->disabled++; + err ("OHCI Unrecoverable Error, controller usb-%s disabled", + ohci->slot_name); + /* e.g. due to PCI Master/Target Abort */ + +#ifdef DEBUG + ohci_dump (ohci, 1); +#else + wait_ms(1); +#endif + /* FIXME: be optimistic, hope that bug won't repeat often. */ + /* Make some non-interrupt context restart the controller. */ + /* Count and limit the retries though; either hardware or */ + /* software errors can go forever... */ + hc_reset (ohci); + return -1; + } + + if (ints & OHCI_INTR_WDH) { + wait_ms(1); + writel (OHCI_INTR_WDH, ®s->intrdisable); + stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); + writel (OHCI_INTR_WDH, ®s->intrenable); + } + + if (ints & OHCI_INTR_SO) { + dbg("USB Schedule overrun\n"); + writel (OHCI_INTR_SO, ®s->intrenable); + stat = -1; + } + + /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ + if (ints & OHCI_INTR_SF) { + unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1; + wait_ms(1); + writel (OHCI_INTR_SF, ®s->intrdisable); + if (ohci->ed_rm_list[frame] != NULL) + writel (OHCI_INTR_SF, ®s->intrenable); + stat = 0xff; + } + + writel (ints, ®s->intrstatus); + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/*-------------------------------------------------------------------------*/ + +/* De-allocate all resources.. */ + +static void hc_release_ohci (ohci_t *ohci) +{ + dbg ("USB HC release ohci usb-%s", ohci->slot_name); + + if (!ohci->disabled) + hc_reset (ohci); +} + +/*-------------------------------------------------------------------------*/ + +/* + * low level initalisation routine, called from usb.c + */ +static char ohci_inited = 0; + +int usb_lowlevel_init(void) +{ + /* do board dependant init */ + if(usb_board_init()) + return -1; + + memset (&gohci, 0, sizeof (ohci_t)); + memset (&urb_priv, 0, sizeof (urb_priv_t)); + + /* align the storage */ + if ((__u32)&ghcca[0] & 0xff) { + err("HCCA not aligned!!"); + return -1; + } + phcca = &ghcca[0]; + info("aligned ghcca %p", phcca); + memset(&ohci_dev, 0, sizeof(struct ohci_device)); + if ((__u32)&ohci_dev.ed[0] & 0x7) { + err("EDs not aligned!!"); + return -1; + } + memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); + if ((__u32)gtd & 0x7) { + err("TDs not aligned!!"); + return -1; + } + ptd = gtd; + gohci.hcca = phcca; + memset (phcca, 0, sizeof (struct ohci_hcca)); + + gohci.disabled = 1; + gohci.sleeping = 0; + gohci.irq = -1; + gohci.regs = (struct ohci_regs *)OHCI_REGS_BASE; + + gohci.flags = 0; + gohci.slot_name = "delta/zylonite"; + + if (hc_reset (&gohci) < 0) { + hc_release_ohci (&gohci); + err ("can't reset usb-%s", gohci.slot_name); + /* Initialization failed disable clocks */ + CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); + return -1; + } + + /* FIXME this is a second HC reset; why?? */ + /* writel(gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control); + wait_ms(10); */ + + if (hc_start (&gohci) < 0) { + err ("can't start usb-%s", gohci.slot_name); + hc_release_ohci (&gohci); + /* Initialization failed */ + CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); + return -1; + } + +#ifdef DEBUG + ohci_dump (&gohci, 1); +#else + wait_ms(1); +#endif + ohci_inited = 1; + return 0; +} + +int usb_lowlevel_stop(void) +{ + /* this gets called really early - before the controller has */ + /* even been initialized! */ + if (!ohci_inited) + return 0; + /* TODO release any interrupts, etc. */ + /* call hc_release_ohci() here ? */ + hc_reset (&gohci); + + /* board dependant cleanup */ + if(usb_board_stop()) + return -1; + + return 0; +} + +#endif /* CONFIG_USB_OHCI */ diff --git a/drivers/usb_ohci.h b/drivers/usb_ohci.h new file mode 100644 index 0000000000..7a1d9d9ccd --- /dev/null +++ b/drivers/usb_ohci.h @@ -0,0 +1,422 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2001 David Brownell + * + * usb-ohci.h + */ + +/* functions for doing board specific setup/cleanup */ +extern int usb_board_init(void); +extern int usb_board_stop(void); + +static int cc_to_error[16] = { + +/* mapping of the OHCI CC status to error codes */ + /* No Error */ 0, + /* CRC Error */ USB_ST_CRC_ERR, + /* Bit Stuff */ USB_ST_BIT_ERR, + /* Data Togg */ USB_ST_CRC_ERR, + /* Stall */ USB_ST_STALLED, + /* DevNotResp */ -1, + /* PIDCheck */ USB_ST_BIT_ERR, + /* UnExpPID */ USB_ST_BIT_ERR, + /* DataOver */ USB_ST_BUF_ERR, + /* DataUnder */ USB_ST_BUF_ERR, + /* reservd */ -1, + /* reservd */ -1, + /* BufferOver */ USB_ST_BUF_ERR, + /* BuffUnder */ USB_ST_BUF_ERR, + /* Not Access */ -1, + /* Not Access */ -1 +}; + +/* ED States */ + +#define ED_NEW 0x00 +#define ED_UNLINK 0x01 +#define ED_OPER 0x02 +#define ED_DEL 0x04 +#define ED_URB_DEL 0x08 + +/* usb_ohci_ed */ +struct ed { + __u32 hwINFO; + __u32 hwTailP; + __u32 hwHeadP; + __u32 hwNextED; + + struct ed *ed_prev; + __u8 int_period; + __u8 int_branch; + __u8 int_load; + __u8 int_interval; + __u8 state; + __u8 type; + __u16 last_iso; + struct ed *ed_rm_list; + + struct usb_device *usb_dev; + __u32 unused[3]; +} __attribute((aligned(16))); +typedef struct ed ed_t; + + +/* TD info field */ +#define TD_CC 0xf0000000 +#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f) +#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28) +#define TD_EC 0x0C000000 +#define TD_T 0x03000000 +#define TD_T_DATA0 0x02000000 +#define TD_T_DATA1 0x03000000 +#define TD_T_TOGGLE 0x00000000 +#define TD_R 0x00040000 +#define TD_DI 0x00E00000 +#define TD_DI_SET(X) (((X) & 0x07)<< 21) +#define TD_DP 0x00180000 +#define TD_DP_SETUP 0x00000000 +#define TD_DP_IN 0x00100000 +#define TD_DP_OUT 0x00080000 + +#define TD_ISO 0x00010000 +#define TD_DEL 0x00020000 + +/* CC Codes */ +#define TD_CC_NOERROR 0x00 +#define TD_CC_CRC 0x01 +#define TD_CC_BITSTUFFING 0x02 +#define TD_CC_DATATOGGLEM 0x03 +#define TD_CC_STALL 0x04 +#define TD_DEVNOTRESP 0x05 +#define TD_PIDCHECKFAIL 0x06 +#define TD_UNEXPECTEDPID 0x07 +#define TD_DATAOVERRUN 0x08 +#define TD_DATAUNDERRUN 0x09 +#define TD_BUFFEROVERRUN 0x0C +#define TD_BUFFERUNDERRUN 0x0D +#define TD_NOTACCESSED 0x0F + + +#define MAXPSW 1 + +struct td { + __u32 hwINFO; + __u32 hwCBP; /* Current Buffer Pointer */ + __u32 hwNextTD; /* Next TD Pointer */ + __u32 hwBE; /* Memory Buffer End Pointer */ + + __u16 hwPSW[MAXPSW]; + __u8 unused; + __u8 index; + struct ed *ed; + struct td *next_dl_td; + struct usb_device *usb_dev; + int transfer_len; + __u32 data; + + __u32 unused2[2]; +} __attribute((aligned(32))); +typedef struct td td_t; + +#define OHCI_ED_SKIP (1 << 14) + +/* + * The HCCA (Host Controller Communications Area) is a 256 byte + * structure defined in the OHCI spec. that the host controller is + * told the base address of. It must be 256-byte aligned. + */ + +#define NUM_INTS 32 /* part of the OHCI standard */ +struct ohci_hcca { + __u32 int_table[NUM_INTS]; /* Interrupt ED table */ + __u16 frame_no; /* current frame number */ + __u16 pad1; /* set to 0 on each frame_no change */ + __u32 done_head; /* info returned for an interrupt */ + u8 reserved_for_hc[116]; +} __attribute((aligned(256))); + + +/* + * Maximum number of root hub ports. + */ +#define MAX_ROOT_PORTS 3 /* maximum OHCI root hub ports */ + +/* + * This is the structure of the OHCI controller's memory mapped I/O + * region. This is Memory Mapped I/O. You must use the readl() and + * writel() macros defined in asm/io.h to access these!! + */ +struct ohci_regs { + /* control and status registers */ + __u32 revision; + __u32 control; + __u32 cmdstatus; + __u32 intrstatus; + __u32 intrenable; + __u32 intrdisable; + /* memory pointers */ + __u32 hcca; + __u32 ed_periodcurrent; + __u32 ed_controlhead; + __u32 ed_controlcurrent; + __u32 ed_bulkhead; + __u32 ed_bulkcurrent; + __u32 donehead; + /* frame counters */ + __u32 fminterval; + __u32 fmremaining; + __u32 fmnumber; + __u32 periodicstart; + __u32 lsthresh; + /* Root hub ports */ + struct ohci_roothub_regs { + __u32 a; + __u32 b; + __u32 status; + __u32 portstatus[MAX_ROOT_PORTS]; + } roothub; +} __attribute((aligned(32))); + + +/* OHCI CONTROL AND STATUS REGISTER MASKS */ + +/* + * HcControl (control) register masks + */ +#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ +#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ +#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ +#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ +#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ +#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ +#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ +#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ +#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ + +/* pre-shifted values for HCFS */ +# define OHCI_USB_RESET (0 << 6) +# define OHCI_USB_RESUME (1 << 6) +# define OHCI_USB_OPER (2 << 6) +# define OHCI_USB_SUSPEND (3 << 6) + +/* + * HcCommandStatus (cmdstatus) register masks + */ +#define OHCI_HCR (1 << 0) /* host controller reset */ +#define OHCI_CLF (1 << 1) /* control list filled */ +#define OHCI_BLF (1 << 2) /* bulk list filled */ +#define OHCI_OCR (1 << 3) /* ownership change request */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ + +/* + * masks used with interrupt registers: + * HcInterruptStatus (intrstatus) + * HcInterruptEnable (intrenable) + * HcInterruptDisable (intrdisable) + */ +#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ +#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ +#define OHCI_INTR_SF (1 << 2) /* start frame */ +#define OHCI_INTR_RD (1 << 3) /* resume detect */ +#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ +#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ +#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ +#define OHCI_INTR_OC (1 << 30) /* ownership change */ +#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ + + +/* Virtual Root HUB */ +struct virt_root_hub { + int devnum; /* Address of Root Hub endpoint */ + void *dev; /* was urb */ + void *int_addr; + int send; + int interval; +}; + +/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ + +/* destination of request */ +#define RH_INTERFACE 0x01 +#define RH_ENDPOINT 0x02 +#define RH_OTHER 0x03 + +#define RH_CLASS 0x20 +#define RH_VENDOR 0x40 + +/* Requests: bRequest << 8 | bmRequestType */ +#define RH_GET_STATUS 0x0080 +#define RH_CLEAR_FEATURE 0x0100 +#define RH_SET_FEATURE 0x0300 +#define RH_SET_ADDRESS 0x0500 +#define RH_GET_DESCRIPTOR 0x0680 +#define RH_SET_DESCRIPTOR 0x0700 +#define RH_GET_CONFIGURATION 0x0880 +#define RH_SET_CONFIGURATION 0x0900 +#define RH_GET_STATE 0x0280 +#define RH_GET_INTERFACE 0x0A80 +#define RH_SET_INTERFACE 0x0B00 +#define RH_SYNC_FRAME 0x0C80 +/* Our Vendor Specific Request */ +#define RH_SET_EP 0x2000 + + +/* Hub port features */ +#define RH_PORT_CONNECTION 0x00 +#define RH_PORT_ENABLE 0x01 +#define RH_PORT_SUSPEND 0x02 +#define RH_PORT_OVER_CURRENT 0x03 +#define RH_PORT_RESET 0x04 +#define RH_PORT_POWER 0x08 +#define RH_PORT_LOW_SPEED 0x09 + +#define RH_C_PORT_CONNECTION 0x10 +#define RH_C_PORT_ENABLE 0x11 +#define RH_C_PORT_SUSPEND 0x12 +#define RH_C_PORT_OVER_CURRENT 0x13 +#define RH_C_PORT_RESET 0x14 + +/* Hub features */ +#define RH_C_HUB_LOCAL_POWER 0x00 +#define RH_C_HUB_OVER_CURRENT 0x01 + +#define RH_DEVICE_REMOTE_WAKEUP 0x00 +#define RH_ENDPOINT_STALL 0x01 + +#define RH_ACK 0x01 +#define RH_REQ_ERR -1 +#define RH_NACK 0x00 + + +/* OHCI ROOT HUB REGISTER MASKS */ + +/* roothub.portstatus [i] bits */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status*/ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ + +/* roothub.status bits */ +#define RH_HS_LPS 0x00000001 /* local power status */ +#define RH_HS_OCI 0x00000002 /* over current indicator */ +#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ +#define RH_HS_LPSC 0x00010000 /* local power status change */ +#define RH_HS_OCIC 0x00020000 /* over current indicator change */ +#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ + +/* roothub.b masks */ +#define RH_B_DR 0x0000ffff /* device removable flags */ +#define RH_B_PPCM 0xffff0000 /* port power control mask */ + +/* roothub.a masks */ +#define RH_A_NDP (0xff << 0) /* number of downstream ports */ +#define RH_A_PSM (1 << 8) /* power switching mode */ +#define RH_A_NPS (1 << 9) /* no power switching */ +#define RH_A_DT (1 << 10) /* device type (mbz) */ +#define RH_A_OCPM (1 << 11) /* over current protection mode */ +#define RH_A_NOCP (1 << 12) /* no over current protection */ +#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ + +/* urb */ +#define N_URB_TD 48 +typedef struct +{ + ed_t *ed; + __u16 length; /* number of tds associated with this request */ + __u16 td_cnt; /* number of tds already serviced */ + int state; + unsigned long pipe; + int actual_length; + td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */ +} urb_priv_t; +#define URB_DEL 1 + +/* + * This is the full ohci controller description + * + * Note how the "proper" USB information is just + * a subset of what the full implementation needs. (Linus) + */ + + +typedef struct ohci { + struct ohci_hcca *hcca; /* hcca */ + /*dma_addr_t hcca_dma;*/ + + int irq; + int disabled; /* e.g. got a UE, we're hung */ + int sleeping; + unsigned long flags; /* for HC bugs */ + + struct ohci_regs *regs; /* OHCI controller's memory */ + + ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */ + ed_t *ed_bulktail; /* last endpoint of bulk list */ + ed_t *ed_controltail; /* last endpoint of control list */ + int intrstatus; + __u32 hc_control; /* copy of the hc control reg */ + struct usb_device *dev[32]; + struct virt_root_hub rh; + + const char *slot_name; +} ohci_t; + +#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ + +struct ohci_device { + ed_t ed[NUM_EDS]; + int ed_cnt; +}; + +/* hcd */ +/* endpoint */ +static int ep_link(ohci_t * ohci, ed_t * ed); +static int ep_unlink(ohci_t * ohci, ed_t * ed); +static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned long pipe); + +/*-------------------------------------------------------------------------*/ + +/* we need more TDs than EDs */ +#define NUM_TD 64 + +/* +1 so we can align the storage */ +td_t gtd[NUM_TD+1]; +/* pointers to aligned storage */ +td_t *ptd; + +/* TDs ... */ +static inline struct td * +td_alloc (struct usb_device *usb_dev) +{ + int i; + struct td *td; + + td = NULL; + for (i = 0; i < NUM_TD; i++) + { + if (ptd[i].usb_dev == NULL) + { + td = &ptd[i]; + td->usb_dev = usb_dev; + break; + } + } + + return td; +} + +static inline void +ed_free (struct ed *ed) +{ + ed->usb_dev = NULL; +} diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h index ebda7192ed..c47306cff2 100644 --- a/include/asm-arm/arch-pxa/pxa-regs.h +++ b/include/asm-arm/arch-pxa/pxa-regs.h @@ -592,9 +592,11 @@ typedef void (*ExcpHndlr) (void) ; #define PMC_REG_BASE __REG(0x40500400) /* Primary Modem Codec */ #define SMC_REG_BASE __REG(0x40500500) /* Secondary Modem Codec */ + /* * USB Device Controller */ +#ifndef CONFIG_CPU_MONAHANS #define UDC_RES1 __REG(0x40600004) /* UDC Undocumented - Reserved1 */ #define UDC_RES2 __REG(0x40600008) /* UDC Undocumented - Reserved2 */ #define UDC_RES3 __REG(0x4060000C) /* UDC Undocumented - Reserved3 */ @@ -749,11 +751,30 @@ typedef void (*ExcpHndlr) (void) ; #define USIR1_IR13 (1 << 5) /* Interrup request ep 13 */ #define USIR1_IR14 (1 << 6) /* Interrup request ep 14 */ #define USIR1_IR15 (1 << 7) /* Interrup request ep 15 */ +#endif /* ! CONFIG_CPU_MONAHANS */ + +#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS) + +/* + * USB Client Controller (incomplete) + */ +#define UDCCR __REG(0x40600000) +#define UDCICR0 __REG(0x40600004) +#define UDCCIR0 __REG(0x40600008) +#define UDCISR0 __REG(0x4060000c) +#define UDCSIR1 __REG(0x40600010) +#define UDCFNR __REG(0x40600014) +#define UDCOTGICR __REG(0x40600018) +#define UDCOTGISR __REG(0x4060001c) +#define UP2OCR __REG(0x40600020) +#define UP3OCR __REG(0x40600024) + + -#if defined(CONFIG_PXA27X) /* * USB Host Controller */ +#define OHCI_REGS_BASE 0x4C000000 /* required for ohci driver */ #define UHCREV __REG(0x4C000000) #define UHCHCON __REG(0x4C000004) #define UHCCOMS __REG(0x4C000008) diff --git a/include/configs/delta.h b/include/configs/delta.h index 91284fdace..0423bcbdbb 100644 --- a/include/configs/delta.h +++ b/include/configs/delta.h @@ -94,13 +94,22 @@ # define CONFIG_COMMANDS ((CONFIG_CMD_DFL \ | CFG_CMD_ENV \ | CFG_CMD_NAND \ - | CFG_CMD_I2C) \ + | CFG_CMD_I2C \ + | CFG_CMD_USB \ + | CFG_CMD_FAT) \ & ~(CFG_CMD_NET \ | CFG_CMD_FLASH \ | CFG_CMD_IMLS)) #endif +#define CONFIG_USB_OHCI 1 +#define CONFIG_USB_STORAGE 1 +#define CONFIG_DOS_PARTITION 1 + +#define LITTLEENDIAN 1 /* used by usb_ohci.c */ + + /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ #include diff --git a/include/da9030.h b/include/da9030.h index 41108b9b36..3e3b202415 100644 --- a/include/da9030.h +++ b/include/da9030.h @@ -104,3 +104,15 @@ #define SYS_CONTROL_A_HWRES_ENABLE (1<<2) #define SYS_CONTROL_A_WDOG_ACTION (1<<3) #define SYS_CONTROL_A_WATCHDOG (1<<7) + +#define MISC_CONTROLB_USB_INT_RISING (1<<2) +#define MISC_CONTROLB_SESSION_VALID_EN (1<<3) + +#define USB_PUMP_USBVE (1<<0) +#define USB_PUMP_USBVEP (1<<1) +#define USB_PUMP_SRP_DETECT (1<<2) +#define USB_PUMP_SESSION_VALID (1<<3) +#define USB_PUMP_VBUS_VALID_4_0 (1<<4) +#define USB_PUMP_VBUS_VALID_4_4 (1<<5) +#define USB_PUMP_EN_USBVE (1<<6) +#define USB_PUMP_EN_USBVEP (1<<7) From 24e37645e7378b20fa8f20e2996c8fb8e90c70c9 Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Tue, 23 May 2006 10:33:11 +0200 Subject: [PATCH 2/4] More cleanup for the delta board and the generic usb_ohci driver. Added CFG_USB_BOARD_INIT and CFG_USB_CPU_INIT for enabling board and cpu specific initialization and cleanup hooks respectively. --- board/delta/delta.c | 55 ++----------------------------- cpu/pxa/Makefile | 2 +- cpu/pxa/usb.c | 71 +++++++++++++++++++++++++++++++++++++++++ drivers/usb_ohci.c | 59 ++++++++++++++++++++++++---------- drivers/usb_ohci.h | 8 +++++ include/configs/delta.h | 8 +++-- 6 files changed, 130 insertions(+), 73 deletions(-) create mode 100644 cpu/pxa/usb.c diff --git a/board/delta/delta.c b/board/delta/delta.c index d9fe8cbf87..6e227748b0 100644 --- a/board/delta/delta.c +++ b/board/delta/delta.c @@ -1,10 +1,6 @@ /* - * (C) Copyright 2002 - * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger + * (C) Copyright 2006 + * DENX Software Engineering * * See file CREDITS for list of people who contributed to this * project. @@ -98,53 +94,6 @@ int board_late_init(void) return 0; } - -/* board dependant usb stuff */ -int usb_board_init() -{ - /* - * Enable USB host clock. - */ - CKENA |= (CKENA_2_USBHOST | CKENA_20_UDC); - udelay(100); - - /* Configure Port 2 for Host (USB Client Registers) */ - UP2OCR = 0x3000c; - -#if 0 - GPIO2_2 = 0x801; /* USBHPEN - Alt. Fkt. 1 */ - GPIO3_2 = 0x801; /* USBHPWR - Alt. Fkt. 1 */ -#endif - - UHCHR |= UHCHR_FHR; - wait_ms(11); /* udelay(11); */ - UHCHR &= ~UHCHR_FHR; - - UHCHR |= UHCHR_FSBIR; - while (UHCHR & UHCHR_FSBIR) - udelay(1); - -#if 0 - UHCHR |= UHCHR_PCPL; /* USBHPEN is active low */ - UHCHR |= UHCHR_PSPL; /* USBHPWR is active low */ -#endif - - UHCHR &= ~UHCHR_SSEP0; - UHCHR &= ~UHCHR_SSEP1; - UHCHR &= ~UHCHR_SSE; - - return 0; -} - -int usb_board_stop() -{ - /* may not want to do this */ - /* CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); */ - - return 0; -} - - /* * Magic Key Handling, mainly copied from board/lwmon/lwmon.c */ diff --git a/cpu/pxa/Makefile b/cpu/pxa/Makefile index 1af53d6ad1..bd476f150d 100644 --- a/cpu/pxa/Makefile +++ b/cpu/pxa/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = lib$(CPU).a START = start.o -OBJS = serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o +OBJS = serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o usb.o all: .depend $(START) $(LIB) diff --git a/cpu/pxa/usb.c b/cpu/pxa/usb.c new file mode 100644 index 0000000000..e89391cf54 --- /dev/null +++ b/cpu/pxa/usb.c @@ -0,0 +1,71 @@ +/* + * (C) Copyright 2006 + * Markus Klotzbuecher, DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include + +#ifdef CFG_USB_CPU_INIT +# ifdef CONFIG_CPU_MONAHANS +int usb_cpu_init() +{ + /* Enable USB host clock. */ + CKENA |= (CKENA_2_USBHOST | CKENA_20_UDC); + udelay(100); + + /* Configure Port 2 for Host (USB Client Registers) */ + UP2OCR = 0x3000c; + +#if 0 + GPIO2_2 = 0x801; /* USBHPEN - Alt. Fkt. 1 */ + GPIO3_2 = 0x801; /* USBHPWR - Alt. Fkt. 1 */ +#endif + + UHCHR |= UHCHR_FHR; + wait_ms(11); + UHCHR &= ~UHCHR_FHR; + + UHCHR |= UHCHR_FSBIR; + while (UHCHR & UHCHR_FSBIR) + udelay(1); + +#if 0 + UHCHR |= UHCHR_PCPL; /* USBHPEN is active low */ + UHCHR |= UHCHR_PSPL; /* USBHPWR is active low */ +#endif + + UHCHR &= ~UHCHR_SSEP0; + UHCHR &= ~UHCHR_SSEP1; + UHCHR &= ~UHCHR_SSE; + + return 0; +} + +int usb_cpu_stop() +{ + /* may not want to do this */ + /* CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); */ + + return 0; +} +# endif /* CONFIG_CPU_MONAHANS */ +#endif /* CFG_USB_CPU_INIT */ diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index 4065489f3e..f5af7192f9 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -51,7 +51,10 @@ #include #include "usb_ohci.h" -/* #define OHCI_USE_NPS /\* force NoPowerSwitching mode *\/ */ +#ifdef CONFIG_ARM920T +# define OHCI_USE_NPS /* force NoPowerSwitching mode */ +#endif + #undef OHCI_VERBOSE_DEBUG /* not always helpful */ /* For initializing controller (mask in an HCFS mode too) */ @@ -310,9 +313,6 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose) ndp = (temp & RH_A_NDP); #ifdef CONFIG_AT91C_PQFP_UHPBUG ndp = (ndp == 2) ? 1:0; -#endif -#if 0 /* def CONFIG_CPU_MONAHANS */ - data_buf [2] = (data_buf [2] == 2) ? 3:0; #endif if (verbose) { dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, @@ -1150,19 +1150,13 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); #ifdef CONFIG_AT91C_PQFP_UHPBUG data_buf [2] = (data_buf [2] == 2) ? 1:0; #endif -#if 0 /* def CONFIG_CPU_MONAHANS */ - data_buf [2] = (data_buf [2] == 2) ? 3:0; -#endif - data_buf [3] = 0; if (temp & RH_A_PSM) /* per-port power switching? */ data_buf [3] |= 0x1; if (temp & RH_A_NOCP) /* no overcurrent reporting? */ data_buf [3] |= 0x10; -#if 1 else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ data_buf [3] |= 0x8; -#endif /* corresponds to data_buf[4-7] */ datab [1] = 0; @@ -1557,10 +1551,18 @@ static char ohci_inited = 0; int usb_lowlevel_init(void) { - /* do board dependant init */ + +#if CFG_USB_CPU_INIT + /* cpu dependant init */ + if(usb_cpu_init()) + return -1; +#endif + +#if CFG_USB_BOARD_INIT + /* board dependant init */ if(usb_board_init()) return -1; - +#endif memset (&gohci, 0, sizeof (ohci_t)); memset (&urb_priv, 0, sizeof (urb_priv_t)); @@ -1588,28 +1590,43 @@ int usb_lowlevel_init(void) gohci.disabled = 1; gohci.sleeping = 0; gohci.irq = -1; - gohci.regs = (struct ohci_regs *)OHCI_REGS_BASE; + gohci.regs = (struct ohci_regs *)CFG_USB_OHCI_REGS_BASE; gohci.flags = 0; - gohci.slot_name = "delta/zylonite"; + gohci.slot_name = CFG_USB_SLOT_NAME; if (hc_reset (&gohci) < 0) { hc_release_ohci (&gohci); err ("can't reset usb-%s", gohci.slot_name); /* Initialization failed disable clocks */ - CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); +#if CFG_USB_BOARD_INIT + /* board dependant cleanup */ + usb_board_stop(); +#endif + +#if CFG_USB_CPU_INIT + /* cpu dependant cleanup */ + usb_cpu_stop(); +#endif return -1; } /* FIXME this is a second HC reset; why?? */ /* writel(gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control); wait_ms(10); */ - if (hc_start (&gohci) < 0) { err ("can't start usb-%s", gohci.slot_name); hc_release_ohci (&gohci); /* Initialization failed */ - CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); +#if CFG_USB_BOARD_INIT + /* board dependant cleanup */ + usb_board_stop(); +#endif + +#if CFG_USB_CPU_INIT + /* cpu dependant cleanup */ + usb_cpu_stop(); +#endif return -1; } @@ -1632,9 +1649,17 @@ int usb_lowlevel_stop(void) /* call hc_release_ohci() here ? */ hc_reset (&gohci); +#if CFG_USB_BOARD_INIT /* board dependant cleanup */ if(usb_board_stop()) return -1; +#endif + +#if CFG_USB_CPU_INIT + /* cpu dependant cleanup */ + if(usb_cpu_stop()) + return -1; +#endif return 0; } diff --git a/drivers/usb_ohci.h b/drivers/usb_ohci.h index 7a1d9d9ccd..c37b5f6005 100644 --- a/drivers/usb_ohci.h +++ b/drivers/usb_ohci.h @@ -8,8 +8,16 @@ */ /* functions for doing board specific setup/cleanup */ +#ifdef CFG_USB_BOARD_INIT extern int usb_board_init(void); extern int usb_board_stop(void); +#endif + +#ifdef CFG_USB_CPU_INIT +extern int usb_cpu_init(void); +extern int usb_cpu_stop(void); +#endif + static int cc_to_error[16] = { diff --git a/include/configs/delta.h b/include/configs/delta.h index 0423bcbdbb..e6b05e0595 100644 --- a/include/configs/delta.h +++ b/include/configs/delta.h @@ -102,13 +102,17 @@ | CFG_CMD_IMLS)) #endif - +/* USB */ #define CONFIG_USB_OHCI 1 #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 -#define LITTLEENDIAN 1 /* used by usb_ohci.c */ +#undef CFG_USB_BOARD_INIT +#define CFG_USB_CPU_INIT 1 +#define CFG_USB_OHCI_REGS_BASE OHCI_REGS_BASE +#define CFG_USB_SLOT_NAME "delta" +#define LITTLEENDIAN 1 /* used by usb_ohci.c */ /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ #include From 301f1aa384d0edcae6a22fd9adb933ad71695ecc Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Tue, 23 May 2006 13:38:35 +0200 Subject: [PATCH 3/4] Changed the mp2usb (at91rm9200) board to use the generic OHCI driver. Some fixes to the latter. --- cpu/arm920t/at91rm9200/Makefile | 2 +- cpu/arm920t/at91rm9200/usb.c | 47 + cpu/arm920t/at91rm9200/usb_ohci.c | 1635 ----------------------------- cpu/arm920t/at91rm9200/usb_ohci.h | 419 -------- cpu/pxa/usb.c | 8 +- drivers/usb_ohci.c | 18 +- include/configs/delta.h | 6 +- include/configs/mp2usb.h | 11 +- 8 files changed, 73 insertions(+), 2073 deletions(-) create mode 100644 cpu/arm920t/at91rm9200/usb.c delete mode 100644 cpu/arm920t/at91rm9200/usb_ohci.c delete mode 100644 cpu/arm920t/at91rm9200/usb_ohci.h diff --git a/cpu/arm920t/at91rm9200/Makefile b/cpu/arm920t/at91rm9200/Makefile index aec9cb6409..f9fccbc06e 100644 --- a/cpu/arm920t/at91rm9200/Makefile +++ b/cpu/arm920t/at91rm9200/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = lib$(SOC).a OBJS = bcm5221.o dm9161.o ether.o i2c.o interrupts.o \ - lxt972.o serial.o usb_ohci.o + lxt972.o serial.o usb.o SOBJS = lowlevel_init.o all: .depend $(LIB) diff --git a/cpu/arm920t/at91rm9200/usb.c b/cpu/arm920t/at91rm9200/usb.c new file mode 100644 index 0000000000..7b83f23eb3 --- /dev/null +++ b/cpu/arm920t/at91rm9200/usb.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2006 + * DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +# ifdef CONFIG_AT91RM9200 + +#include + +int usb_cpu_init() +{ + /* Enable USB host clock. */ + *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */ + *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */ + return 0; +} + +int usb_cpu_stop() +{ + /* Initialization failed */ + *AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */ + *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ + return 0; +} +# endif /* CONFIG_AT91RM9200 */ +#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ diff --git a/cpu/arm920t/at91rm9200/usb_ohci.c b/cpu/arm920t/at91rm9200/usb_ohci.c deleted file mode 100644 index 5b2c56cffc..0000000000 --- a/cpu/arm920t/at91rm9200/usb_ohci.c +++ /dev/null @@ -1,1635 +0,0 @@ -/* - * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200. - * - * (C) Copyright 2003 - * Gary Jennejohn, DENX Software Engineering - * - * Note: Much of this code has been derived from Linux 2.4 - * (C) Copyright 1999 Roman Weissgaerber - * (C) Copyright 2000-2002 David Brownell - * - * Modified for the MP2USB by (C) Copyright 2005 Eric Benard - * ebenard@eukrea.com - based on s3c24x0's driver - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ -/* - * IMPORTANT NOTES - * 1 - you MUST define LITTLEENDIAN in the configuration file for the - * board or this driver will NOT work! - * 2 - this driver is intended for use with USB Mass Storage Devices - * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! - * 3 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG - * to activate workaround for bug #41 or this driver will NOT work! - */ - -#include -/* #include no PCI on the S3C24X0 */ - -#ifdef CONFIG_USB_OHCI - -#include - -#include -#include -#include "usb_ohci.h" - -#define OHCI_USE_NPS /* force NoPowerSwitching mode */ -#undef OHCI_VERBOSE_DEBUG /* not always helpful */ - -/* For initializing controller (mask in an HCFS mode too) */ -#define OHCI_CONTROL_INIT \ - (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE - -#define readl(a) (*((vu_long *)(a))) -#define writel(a, b) (*((vu_long *)(b)) = ((vu_long)a)) - -#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) - -#undef DEBUG -#ifdef DEBUG -#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) -#else -#define dbg(format, arg...) do {} while(0) -#endif /* DEBUG */ -#define err(format, arg...) printf("ERROR: " format "\n", ## arg) -#undef SHOW_INFO -#ifdef SHOW_INFO -#define info(format, arg...) printf("INFO: " format "\n", ## arg) -#else -#define info(format, arg...) do {} while(0) -#endif - -#define m16_swap(x) swap_16(x) -#define m32_swap(x) swap_32(x) - -/* global ohci_t */ -static ohci_t gohci; -/* this must be aligned to a 256 byte boundary */ -struct ohci_hcca ghcca[1]; -/* a pointer to the aligned storage */ -struct ohci_hcca *phcca; -/* this allocates EDs for all possible endpoints */ -struct ohci_device ohci_dev; -/* urb_priv */ -urb_priv_t urb_priv; -/* RHSC flag */ -int got_rhsc; -/* device which was disconnected */ -struct usb_device *devgone; - -/*-------------------------------------------------------------------------*/ - -/* AMD-756 (D2 rev) reports corrupt register contents in some cases. - * The erratum (#4) description is incorrect. AMD's workaround waits - * till some bits (mostly reserved) are clear; ok for all revs. - */ -#define OHCI_QUIRK_AMD756 0xabcd -#define read_roothub(hc, register, mask) ({ \ - u32 temp = readl (&hc->regs->roothub.register); \ - if (hc->flags & OHCI_QUIRK_AMD756) \ - while (temp & mask) \ - temp = readl (&hc->regs->roothub.register); \ - temp; }) - -static u32 roothub_a (struct ohci *hc) - { return read_roothub (hc, a, 0xfc0fe000); } -static inline u32 roothub_b (struct ohci *hc) - { return readl (&hc->regs->roothub.b); } -static inline u32 roothub_status (struct ohci *hc) - { return readl (&hc->regs->roothub.status); } -static u32 roothub_portstatus (struct ohci *hc, int i) - { return read_roothub (hc, portstatus [i], 0xffe0fce0); } - - -/* forward declaration */ -static int hc_interrupt (void); -static void -td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, - int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); - -/*-------------------------------------------------------------------------* - * URB support functions - *-------------------------------------------------------------------------*/ - -/* free HCD-private data associated with this URB */ - -static void urb_free_priv (urb_priv_t * urb) -{ - int i; - int last; - struct td * td; - - last = urb->length - 1; - if (last >= 0) { - for (i = 0; i <= last; i++) { - td = urb->td[i]; - if (td) { - td->usb_dev = NULL; - urb->td[i] = NULL; - } - } - } -} - -/*-------------------------------------------------------------------------*/ - -#ifdef DEBUG -static int sohci_get_current_frame_number (struct usb_device * dev); - -/* debug| print the main components of an URB - * small: 0) header + data packets 1) just header */ - -static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer, - int transfer_len, struct devrequest * setup, char * str, int small) -{ - urb_priv_t * purb = &urb_priv; - - dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", - str, - sohci_get_current_frame_number (dev), - usb_pipedevice (pipe), - usb_pipeendpoint (pipe), - usb_pipeout (pipe)? 'O': 'I', - usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): - (usb_pipecontrol (pipe)? "CTRL": "BULK"), - purb->actual_length, - transfer_len, dev->status); -#ifdef OHCI_VERBOSE_DEBUG - if (!small) { - int i, len; - - if (usb_pipecontrol (pipe)) { - printf (__FILE__ ": cmd(8):"); - for (i = 0; i < 8 ; i++) - printf (" %02x", ((__u8 *) setup) [i]); - printf ("\n"); - } - if (transfer_len > 0 && buffer) { - printf (__FILE__ ": data(%d/%d):", - purb->actual_length, - transfer_len); - len = usb_pipeout (pipe)? - transfer_len: purb->actual_length; - for (i = 0; i < 16 && i < len; i++) - printf (" %02x", ((__u8 *) buffer) [i]); - printf ("%s\n", i < len? "...": ""); - } - } -#endif -} - -/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ -void ep_print_int_eds (ohci_t *ohci, char * str) { - int i, j; - __u32 * ed_p; - for (i= 0; i < 32; i++) { - j = 5; - ed_p = &(ohci->hcca->int_table [i]); - if (*ed_p == 0) - continue; - printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); - while (*ed_p != 0 && j--) { - ed_t *ed = (ed_t *)m32_swap(ed_p); - printf (" ed: %4x;", ed->hwINFO); - ed_p = &ed->hwNextED; - } - printf ("\n"); - } -} - -static void ohci_dump_intr_mask (char *label, __u32 mask) -{ - dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", - label, - mask, - (mask & OHCI_INTR_MIE) ? " MIE" : "", - (mask & OHCI_INTR_OC) ? " OC" : "", - (mask & OHCI_INTR_RHSC) ? " RHSC" : "", - (mask & OHCI_INTR_FNO) ? " FNO" : "", - (mask & OHCI_INTR_UE) ? " UE" : "", - (mask & OHCI_INTR_RD) ? " RD" : "", - (mask & OHCI_INTR_SF) ? " SF" : "", - (mask & OHCI_INTR_WDH) ? " WDH" : "", - (mask & OHCI_INTR_SO) ? " SO" : "" - ); -} - -static void maybe_print_eds (char *label, __u32 value) -{ - ed_t *edp = (ed_t *)value; - - if (value) { - dbg ("%s %08x", label, value); - dbg ("%08x", edp->hwINFO); - dbg ("%08x", edp->hwTailP); - dbg ("%08x", edp->hwHeadP); - dbg ("%08x", edp->hwNextED); - } -} - -static char * hcfs2string (int state) -{ - switch (state) { - case OHCI_USB_RESET: return "reset"; - case OHCI_USB_RESUME: return "resume"; - case OHCI_USB_OPER: return "operational"; - case OHCI_USB_SUSPEND: return "suspend"; - } - return "?"; -} - -/* dump control and status registers */ -static void ohci_dump_status (ohci_t *controller) -{ - struct ohci_regs *regs = controller->regs; - __u32 temp; - - temp = readl (®s->revision) & 0xff; - if (temp != 0x10) - dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); - - temp = readl (®s->control); - dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, - (temp & OHCI_CTRL_RWE) ? " RWE" : "", - (temp & OHCI_CTRL_RWC) ? " RWC" : "", - (temp & OHCI_CTRL_IR) ? " IR" : "", - hcfs2string (temp & OHCI_CTRL_HCFS), - (temp & OHCI_CTRL_BLE) ? " BLE" : "", - (temp & OHCI_CTRL_CLE) ? " CLE" : "", - (temp & OHCI_CTRL_IE) ? " IE" : "", - (temp & OHCI_CTRL_PLE) ? " PLE" : "", - temp & OHCI_CTRL_CBSR - ); - - temp = readl (®s->cmdstatus); - dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, - (temp & OHCI_SOC) >> 16, - (temp & OHCI_OCR) ? " OCR" : "", - (temp & OHCI_BLF) ? " BLF" : "", - (temp & OHCI_CLF) ? " CLF" : "", - (temp & OHCI_HCR) ? " HCR" : "" - ); - - ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); - ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); - - maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); - - maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); - maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); - - maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); - maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); - - maybe_print_eds ("donehead", readl (®s->donehead)); -} - -static void ohci_dump_roothub (ohci_t *controller, int verbose) -{ - __u32 temp, ndp, i; - - temp = roothub_a (controller); - ndp = (temp & RH_A_NDP); -#ifdef CONFIG_AT91C_PQFP_UHPBUG - ndp = (ndp == 2) ? 1:0; -#endif - if (verbose) { - dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, - ((temp & RH_A_POTPGT) >> 24) & 0xff, - (temp & RH_A_NOCP) ? " NOCP" : "", - (temp & RH_A_OCPM) ? " OCPM" : "", - (temp & RH_A_DT) ? " DT" : "", - (temp & RH_A_NPS) ? " NPS" : "", - (temp & RH_A_PSM) ? " PSM" : "", - ndp - ); - temp = roothub_b (controller); - dbg ("roothub.b: %08x PPCM=%04x DR=%04x", - temp, - (temp & RH_B_PPCM) >> 16, - (temp & RH_B_DR) - ); - temp = roothub_status (controller); - dbg ("roothub.status: %08x%s%s%s%s%s%s", - temp, - (temp & RH_HS_CRWE) ? " CRWE" : "", - (temp & RH_HS_OCIC) ? " OCIC" : "", - (temp & RH_HS_LPSC) ? " LPSC" : "", - (temp & RH_HS_DRWE) ? " DRWE" : "", - (temp & RH_HS_OCI) ? " OCI" : "", - (temp & RH_HS_LPS) ? " LPS" : "" - ); - } - - for (i = 0; i < ndp; i++) { - temp = roothub_portstatus (controller, i); - dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", - i, - temp, - (temp & RH_PS_PRSC) ? " PRSC" : "", - (temp & RH_PS_OCIC) ? " OCIC" : "", - (temp & RH_PS_PSSC) ? " PSSC" : "", - (temp & RH_PS_PESC) ? " PESC" : "", - (temp & RH_PS_CSC) ? " CSC" : "", - - (temp & RH_PS_LSDA) ? " LSDA" : "", - (temp & RH_PS_PPS) ? " PPS" : "", - (temp & RH_PS_PRS) ? " PRS" : "", - (temp & RH_PS_POCI) ? " POCI" : "", - (temp & RH_PS_PSS) ? " PSS" : "", - - (temp & RH_PS_PES) ? " PES" : "", - (temp & RH_PS_CCS) ? " CCS" : "" - ); - } -} - -static void ohci_dump (ohci_t *controller, int verbose) -{ - dbg ("OHCI controller usb-%s state", controller->slot_name); - - /* dumps some of the state we know about */ - ohci_dump_status (controller); - if (verbose) - ep_print_int_eds (controller, "hcca"); - dbg ("hcca frame #%04x", controller->hcca->frame_no); - ohci_dump_roothub (controller, 1); -} - - -#endif /* DEBUG */ - -/*-------------------------------------------------------------------------* - * Interface functions (URB) - *-------------------------------------------------------------------------*/ - -/* get a transfer request */ - -int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, int interval) -{ - ohci_t *ohci; - ed_t * ed; - urb_priv_t *purb_priv; - int i, size = 0; - - ohci = &gohci; - - /* when controller's hung, permit only roothub cleanup attempts - * such as powering down ports */ - if (ohci->disabled) { - err("sohci_submit_job: EPIPE"); - return -1; - } - - /* every endpoint has a ed, locate and fill it */ - if (!(ed = ep_add_ed (dev, pipe))) { - err("sohci_submit_job: ENOMEM"); - return -1; - } - - /* for the private part of the URB we need the number of TDs (size) */ - switch (usb_pipetype (pipe)) { - case PIPE_BULK: /* one TD for every 4096 Byte */ - size = (transfer_len - 1) / 4096 + 1; - break; - case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ - size = (transfer_len == 0)? 2: - (transfer_len - 1) / 4096 + 3; - break; - } - - if (size >= (N_URB_TD - 1)) { - err("need %d TDs, only have %d", size, N_URB_TD); - return -1; - } - purb_priv = &urb_priv; - purb_priv->pipe = pipe; - - /* fill the private part of the URB */ - purb_priv->length = size; - purb_priv->ed = ed; - purb_priv->actual_length = 0; - - /* allocate the TDs */ - /* note that td[0] was allocated in ep_add_ed */ - for (i = 0; i < size; i++) { - purb_priv->td[i] = td_alloc (dev); - if (!purb_priv->td[i]) { - purb_priv->length = i; - urb_free_priv (purb_priv); - err("sohci_submit_job: ENOMEM"); - return -1; - } - } - - if (ed->state == ED_NEW || (ed->state & ED_DEL)) { - urb_free_priv (purb_priv); - err("sohci_submit_job: EINVAL"); - return -1; - } - - /* link the ed into a chain if is not already */ - if (ed->state != ED_OPER) - ep_link (ohci, ed); - - /* fill the TDs and link it to the ed */ - td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); - - return 0; -} - -/*-------------------------------------------------------------------------*/ - -#ifdef DEBUG -/* tell us the current USB frame number */ - -static int sohci_get_current_frame_number (struct usb_device *usb_dev) -{ - ohci_t *ohci = &gohci; - - return m16_swap (ohci->hcca->frame_no); -} -#endif - -/*-------------------------------------------------------------------------* - * ED handling functions - *-------------------------------------------------------------------------*/ - -/* link an ed into one of the HC chains */ - -static int ep_link (ohci_t *ohci, ed_t *edi) -{ - volatile ed_t *ed = edi; - - ed->state = ED_OPER; - - switch (ed->type) { - case PIPE_CONTROL: - ed->hwNextED = 0; - if (ohci->ed_controltail == NULL) { - writel (ed, &ohci->regs->ed_controlhead); - } else { - ohci->ed_controltail->hwNextED = m32_swap (ed); - } - ed->ed_prev = ohci->ed_controltail; - if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && - !ohci->ed_rm_list[1] && !ohci->sleeping) { - ohci->hc_control |= OHCI_CTRL_CLE; - writel (ohci->hc_control, &ohci->regs->control); - } - ohci->ed_controltail = edi; - break; - - case PIPE_BULK: - ed->hwNextED = 0; - if (ohci->ed_bulktail == NULL) { - writel (ed, &ohci->regs->ed_bulkhead); - } else { - ohci->ed_bulktail->hwNextED = m32_swap (ed); - } - ed->ed_prev = ohci->ed_bulktail; - if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && - !ohci->ed_rm_list[1] && !ohci->sleeping) { - ohci->hc_control |= OHCI_CTRL_BLE; - writel (ohci->hc_control, &ohci->regs->control); - } - ohci->ed_bulktail = edi; - break; - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* unlink an ed from one of the HC chains. - * just the link to the ed is unlinked. - * the link from the ed still points to another operational ed or 0 - * so the HC can eventually finish the processing of the unlinked ed */ - -static int ep_unlink (ohci_t *ohci, ed_t *ed) -{ - ed->hwINFO |= m32_swap (OHCI_ED_SKIP); - - switch (ed->type) { - case PIPE_CONTROL: - if (ed->ed_prev == NULL) { - if (!ed->hwNextED) { - ohci->hc_control &= ~OHCI_CTRL_CLE; - writel (ohci->hc_control, &ohci->regs->control); - } - writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); - } else { - ed->ed_prev->hwNextED = ed->hwNextED; - } - if (ohci->ed_controltail == ed) { - ohci->ed_controltail = ed->ed_prev; - } else { - ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; - } - break; - - case PIPE_BULK: - if (ed->ed_prev == NULL) { - if (!ed->hwNextED) { - ohci->hc_control &= ~OHCI_CTRL_BLE; - writel (ohci->hc_control, &ohci->regs->control); - } - writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); - } else { - ed->ed_prev->hwNextED = ed->hwNextED; - } - if (ohci->ed_bulktail == ed) { - ohci->ed_bulktail = ed->ed_prev; - } else { - ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; - } - break; - } - ed->state = ED_UNLINK; - return 0; -} - - -/*-------------------------------------------------------------------------*/ - -/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, - * but the USB stack is a little bit stateless so we do it at every transaction - * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK - * in all other cases the state is left unchanged - * the ed info fields are setted anyway even though most of them should not change */ - -static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) -{ - td_t *td; - ed_t *ed_ret; - volatile ed_t *ed; - - ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | - (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; - - if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { - err("ep_add_ed: pending delete"); - /* pending delete request */ - return NULL; - } - - if (ed->state == ED_NEW) { - ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */ - /* dummy td; end of td list for ed */ - td = td_alloc (usb_dev); - ed->hwTailP = m32_swap (td); - ed->hwHeadP = ed->hwTailP; - ed->state = ED_UNLINK; - ed->type = usb_pipetype (pipe); - ohci_dev.ed_cnt++; - } - - ed->hwINFO = m32_swap (usb_pipedevice (pipe) - | usb_pipeendpoint (pipe) << 7 - | (usb_pipeisoc (pipe)? 0x8000: 0) - | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) - | usb_pipeslow (pipe) << 13 - | usb_maxpacket (usb_dev, pipe) << 16); - - return ed_ret; -} - -/*-------------------------------------------------------------------------* - * TD handling functions - *-------------------------------------------------------------------------*/ - -/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ - -static void td_fill (ohci_t *ohci, unsigned int info, - void *data, int len, - struct usb_device *dev, int index, urb_priv_t *urb_priv) -{ - volatile td_t *td, *td_pt; -#ifdef OHCI_FILL_TRACE - int i; -#endif - - if (index > urb_priv->length) { - err("index > length"); - return; - } - /* use this td as the next dummy */ - td_pt = urb_priv->td [index]; - td_pt->hwNextTD = 0; - - /* fill the old dummy TD */ - td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf); - - td->ed = urb_priv->ed; - td->next_dl_td = NULL; - td->index = index; - td->data = (__u32)data; -#ifdef OHCI_FILL_TRACE - if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe)) { - for (i = 0; i < len; i++) - printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]); - printf("\n"); - } -#endif - if (!len) - data = 0; - - td->hwINFO = m32_swap (info); - td->hwCBP = m32_swap (data); - if (data) - td->hwBE = m32_swap (data + len - 1); - else - td->hwBE = 0; - td->hwNextTD = m32_swap (td_pt); - td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000); - - /* append to queue */ - td->ed->hwTailP = td->hwNextTD; -} - -/*-------------------------------------------------------------------------*/ - -/* prepare all TDs of a transfer */ - -static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) -{ - ohci_t *ohci = &gohci; - int data_len = transfer_len; - void *data; - int cnt = 0; - __u32 info = 0; - unsigned int toggle = 0; - - /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ - if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { - toggle = TD_T_TOGGLE; - } else { - toggle = TD_T_DATA0; - usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); - } - urb->td_cnt = 0; - if (data_len) - data = buffer; - else - data = 0; - - switch (usb_pipetype (pipe)) { - case PIPE_BULK: - info = usb_pipeout (pipe)? - TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; - while(data_len > 4096) { - td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); - data += 4096; data_len -= 4096; cnt++; - } - info = usb_pipeout (pipe)? - TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; - td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); - cnt++; - - if (!ohci->sleeping) - writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ - break; - - case PIPE_CONTROL: - info = TD_CC | TD_DP_SETUP | TD_T_DATA0; - td_fill (ohci, info, setup, 8, dev, cnt++, urb); - if (data_len > 0) { - info = usb_pipeout (pipe)? - TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; - /* NOTE: mishandles transfers >8K, some >4K */ - td_fill (ohci, info, data, data_len, dev, cnt++, urb); - } - info = usb_pipeout (pipe)? - TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; - td_fill (ohci, info, data, 0, dev, cnt++, urb); - if (!ohci->sleeping) - writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ - break; - } - if (urb->length != cnt) - dbg("TD LENGTH %d != CNT %d", urb->length, cnt); -} - -/*-------------------------------------------------------------------------* - * Done List handling functions - *-------------------------------------------------------------------------*/ - - -/* calculate the transfer length and update the urb */ - -static void dl_transfer_length(td_t * td) -{ - __u32 tdINFO, tdBE, tdCBP; - urb_priv_t *lurb_priv = &urb_priv; - - tdINFO = m32_swap (td->hwINFO); - tdBE = m32_swap (td->hwBE); - tdCBP = m32_swap (td->hwCBP); - - - if (!(usb_pipetype (lurb_priv->pipe) == PIPE_CONTROL && - ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { - if (tdBE != 0) { - if (td->hwCBP == 0) - lurb_priv->actual_length += tdBE - td->data + 1; - else - lurb_priv->actual_length += tdCBP - td->data; - } - } -} - -/*-------------------------------------------------------------------------*/ - -/* replies to the request have to be on a FIFO basis so - * we reverse the reversed done-list */ - -static td_t * dl_reverse_done_list (ohci_t *ohci) -{ - __u32 td_list_hc; - td_t *td_rev = NULL; - td_t *td_list = NULL; - urb_priv_t *lurb_priv = NULL; - - td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0; - ohci->hcca->done_head = 0; - - while (td_list_hc) { - td_list = (td_t *)td_list_hc; - - if (TD_CC_GET (m32_swap (td_list->hwINFO))) { - lurb_priv = &urb_priv; - dbg(" USB-error/status: %x : %p", - TD_CC_GET (m32_swap (td_list->hwINFO)), td_list); - if (td_list->ed->hwHeadP & m32_swap (0x1)) { - if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { - td_list->ed->hwHeadP = - (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) | - (td_list->ed->hwHeadP & m32_swap (0x2)); - lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; - } else - td_list->ed->hwHeadP &= m32_swap (0xfffffff2); - } - } - - td_list->next_dl_td = td_rev; - td_rev = td_list; - td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0; - } - return td_list; -} - -/*-------------------------------------------------------------------------*/ - -/* td done list */ -static int dl_done_list (ohci_t *ohci, td_t *td_list) -{ - td_t *td_list_next = NULL; - ed_t *ed; - int cc = 0; - int stat = 0; - /* urb_t *urb; */ - urb_priv_t *lurb_priv; - __u32 tdINFO, edHeadP, edTailP; - - while (td_list) { - td_list_next = td_list->next_dl_td; - - lurb_priv = &urb_priv; - tdINFO = m32_swap (td_list->hwINFO); - - ed = td_list->ed; - - dl_transfer_length(td_list); - - /* error code of transfer */ - cc = TD_CC_GET (tdINFO); - if (cc != 0) { - dbg("ConditionCode %#x", cc); - stat = cc_to_error[cc]; - } - - if (ed->state != ED_NEW) { - edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0; - edTailP = m32_swap (ed->hwTailP); - - /* unlink eds if they are not busy */ - if ((edHeadP == edTailP) && (ed->state == ED_OPER)) - ep_unlink (ohci, ed); - } - - td_list = td_list_next; - } - return stat; -} - -/*-------------------------------------------------------------------------* - * Virtual Root Hub - *-------------------------------------------------------------------------*/ - -/* Device descriptor */ -static __u8 root_hub_dev_des[] = -{ - 0x12, /* __u8 bLength; */ - 0x01, /* __u8 bDescriptorType; Device */ - 0x10, /* __u16 bcdUSB; v1.1 */ - 0x01, - 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ - 0x00, /* __u8 bDeviceSubClass; */ - 0x00, /* __u8 bDeviceProtocol; */ - 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ - 0x00, /* __u16 idVendor; */ - 0x00, - 0x00, /* __u16 idProduct; */ - 0x00, - 0x00, /* __u16 bcdDevice; */ - 0x00, - 0x00, /* __u8 iManufacturer; */ - 0x01, /* __u8 iProduct; */ - 0x00, /* __u8 iSerialNumber; */ - 0x01 /* __u8 bNumConfigurations; */ -}; - - -/* Configuration descriptor */ -static __u8 root_hub_config_des[] = -{ - 0x09, /* __u8 bLength; */ - 0x02, /* __u8 bDescriptorType; Configuration */ - 0x19, /* __u16 wTotalLength; */ - 0x00, - 0x01, /* __u8 bNumInterfaces; */ - 0x01, /* __u8 bConfigurationValue; */ - 0x00, /* __u8 iConfiguration; */ - 0x40, /* __u8 bmAttributes; - Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ - 0x00, /* __u8 MaxPower; */ - - /* interface */ - 0x09, /* __u8 if_bLength; */ - 0x04, /* __u8 if_bDescriptorType; Interface */ - 0x00, /* __u8 if_bInterfaceNumber; */ - 0x00, /* __u8 if_bAlternateSetting; */ - 0x01, /* __u8 if_bNumEndpoints; */ - 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ - 0x00, /* __u8 if_bInterfaceSubClass; */ - 0x00, /* __u8 if_bInterfaceProtocol; */ - 0x00, /* __u8 if_iInterface; */ - - /* endpoint */ - 0x07, /* __u8 ep_bLength; */ - 0x05, /* __u8 ep_bDescriptorType; Endpoint */ - 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ - 0x03, /* __u8 ep_bmAttributes; Interrupt */ - 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ - 0x00, - 0xff /* __u8 ep_bInterval; 255 ms */ -}; - -static unsigned char root_hub_str_index0[] = -{ - 0x04, /* __u8 bLength; */ - 0x03, /* __u8 bDescriptorType; String-descriptor */ - 0x09, /* __u8 lang ID */ - 0x04, /* __u8 lang ID */ -}; - -static unsigned char root_hub_str_index1[] = -{ - 28, /* __u8 bLength; */ - 0x03, /* __u8 bDescriptorType; String-descriptor */ - 'O', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'H', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'C', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'I', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - ' ', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'R', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'o', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'o', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 't', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - ' ', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'H', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'u', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'b', /* __u8 Unicode */ - 0, /* __u8 Unicode */ -}; - -/* Hub class-specific descriptor is constructed dynamically */ - - -/*-------------------------------------------------------------------------*/ - -#define OK(x) len = (x); break -#ifdef DEBUG -#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} -#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} -#else -#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) -#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) -#endif -#define RD_RH_STAT roothub_status(&gohci) -#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) - -/* request to virtual root hub */ - -int rh_check_port_status(ohci_t *controller) -{ - __u32 temp, ndp, i; - int res; - - res = -1; - temp = roothub_a (controller); - ndp = (temp & RH_A_NDP); -#ifdef CONFIG_AT91C_PQFP_UHPBUG - ndp = (ndp == 2) ? 1:0; -#endif - - for (i = 0; i < ndp; i++) { - temp = roothub_portstatus (controller, i); - /* check for a device disconnect */ - if (((temp & (RH_PS_PESC | RH_PS_CSC)) == - (RH_PS_PESC | RH_PS_CSC)) && - ((temp & RH_PS_CCS) == 0)) { - res = i; - break; - } - } - return res; -} - -static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, - void *buffer, int transfer_len, struct devrequest *cmd) -{ - void * data = buffer; - int leni = transfer_len; - int len = 0; - int stat = 0; - __u32 datab[4]; - __u8 *data_buf = (__u8 *)datab; - __u16 bmRType_bReq; - __u16 wValue; - __u16 wIndex; - __u16 wLength; - -#ifdef DEBUG -urb_priv.actual_length = 0; -pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) { - info("Root-Hub submit IRQ: NOT implemented"); - return 0; - } - - bmRType_bReq = cmd->requesttype | (cmd->request << 8); - wValue = m16_swap (cmd->value); - wIndex = m16_swap (cmd->index); - wLength = m16_swap (cmd->length); - - info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", - dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); - - switch (bmRType_bReq) { - /* Request Destination: - without flags: Device, - RH_INTERFACE: interface, - RH_ENDPOINT: endpoint, - RH_CLASS means HUB here, - RH_OTHER | RH_CLASS almost ever means HUB_PORT here - */ - - case RH_GET_STATUS: - *(__u16 *) data_buf = m16_swap (1); OK (2); - case RH_GET_STATUS | RH_INTERFACE: - *(__u16 *) data_buf = m16_swap (0); OK (2); - case RH_GET_STATUS | RH_ENDPOINT: - *(__u16 *) data_buf = m16_swap (0); OK (2); - case RH_GET_STATUS | RH_CLASS: - *(__u32 *) data_buf = m32_swap ( - RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); - OK (4); - case RH_GET_STATUS | RH_OTHER | RH_CLASS: - *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); - - case RH_CLEAR_FEATURE | RH_ENDPOINT: - switch (wValue) { - case (RH_ENDPOINT_STALL): OK (0); - } - break; - - case RH_CLEAR_FEATURE | RH_CLASS: - switch (wValue) { - case RH_C_HUB_LOCAL_POWER: - OK(0); - case (RH_C_HUB_OVER_CURRENT): - WR_RH_STAT(RH_HS_OCIC); OK (0); - } - break; - - case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: - switch (wValue) { - case (RH_PORT_ENABLE): - WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); - case (RH_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_POCI); OK (0); - case (RH_PORT_POWER): - WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); - case (RH_C_PORT_CONNECTION): - WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); - case (RH_C_PORT_ENABLE): - WR_RH_PORTSTAT (RH_PS_PESC); OK (0); - case (RH_C_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); - case (RH_C_PORT_OVER_CURRENT): - WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); - case (RH_C_PORT_RESET): - WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); - } - break; - - case RH_SET_FEATURE | RH_OTHER | RH_CLASS: - switch (wValue) { - case (RH_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); - case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT (RH_PS_PRS); - OK (0); - case (RH_PORT_POWER): - WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); - case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT (RH_PS_PES ); - OK (0); - } - break; - - case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); - - case RH_GET_DESCRIPTOR: - switch ((wValue & 0xff00) >> 8) { - case (0x01): /* device descriptor */ - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_dev_des), - wLength)); - data_buf = root_hub_dev_des; OK(len); - case (0x02): /* configuration descriptor */ - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_config_des), - wLength)); - data_buf = root_hub_config_des; OK(len); - case (0x03): /* string descriptors */ - if(wValue==0x0300) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_str_index0), - wLength)); - data_buf = root_hub_str_index0; - OK(len); - } - if(wValue==0x0301) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_str_index1), - wLength)); - data_buf = root_hub_str_index1; - OK(len); - } - default: - stat = USB_ST_STALLED; - } - break; - - case RH_GET_DESCRIPTOR | RH_CLASS: - { - __u32 temp = roothub_a (&gohci); - - data_buf [0] = 9; /* min length; */ - data_buf [1] = 0x29; - data_buf [2] = temp & RH_A_NDP; -#ifdef CONFIG_AT91C_PQFP_UHPBUG - data_buf [2] = (data_buf [2] == 2) ? 1:0; -#endif - data_buf [3] = 0; - if (temp & RH_A_PSM) /* per-port power switching? */ - data_buf [3] |= 0x1; - if (temp & RH_A_NOCP) /* no overcurrent reporting? */ - data_buf [3] |= 0x10; - else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ - data_buf [3] |= 0x8; - - /* corresponds to data_buf[4-7] */ - datab [1] = 0; - data_buf [5] = (temp & RH_A_POTPGT) >> 24; - temp = roothub_b (&gohci); - data_buf [7] = temp & RH_B_DR; - if (data_buf [2] < 7) { - data_buf [8] = 0xff; - } else { - data_buf [0] += 2; - data_buf [8] = (temp & RH_B_DR) >> 8; - data_buf [10] = data_buf [9] = 0xff; - } - - len = min_t(unsigned int, leni, - min_t(unsigned int, data_buf [0], wLength)); - OK (len); - } - - case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); - - case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); - - default: - dbg ("unsupported root hub command"); - stat = USB_ST_STALLED; - } - -#ifdef DEBUG - ohci_dump_roothub (&gohci, 1); -#else - wait_ms(1); -#endif - - len = min_t(int, len, leni); - if (data != data_buf) - memcpy (data, data_buf, len); - dev->act_len = len; - dev->status = stat; - -#ifdef DEBUG - if (transfer_len) - urb_priv.actual_length = transfer_len; - pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); -#else - wait_ms(1); -#endif - - return stat; -} - -/*-------------------------------------------------------------------------*/ - -/* common code for handling submit messages - used for all but root hub */ -/* accesses. */ -int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, int interval) -{ - int stat = 0; - int maxsize = usb_maxpacket(dev, pipe); - int timeout; - - /* device pulled? Shortcut the action. */ - if (devgone == dev) { - dev->status = USB_ST_CRC_ERR; - return 0; - } - -#ifdef DEBUG - urb_priv.actual_length = 0; - pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if (!maxsize) { - err("submit_common_message: pipesize for pipe %lx is zero", - pipe); - return -1; - } - - if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) { - err("sohci_submit_job failed"); - return -1; - } - - wait_ms(10); - /* ohci_dump_status(&gohci); */ - - /* allow more time for a BULK device to react - some are slow */ -#define BULK_TO 5000 /* timeout in milliseconds */ - if (usb_pipetype (pipe) == PIPE_BULK) - timeout = BULK_TO; - else - timeout = 100; - - /* wait for it to complete */ - for (;;) { - /* check whether the controller is done */ - stat = hc_interrupt(); - if (stat < 0) { - stat = USB_ST_CRC_ERR; - break; - } - if (stat >= 0 && stat != 0xff) { - /* 0xff is returned for an SF-interrupt */ - break; - } - if (--timeout) { - wait_ms(1); - } else { - err("CTL:TIMEOUT "); - stat = USB_ST_CRC_ERR; - break; - } - } - /* we got an Root Hub Status Change interrupt */ - if (got_rhsc) { -#ifdef DEBUG - ohci_dump_roothub (&gohci, 1); -#endif - got_rhsc = 0; - /* abuse timeout */ - timeout = rh_check_port_status(&gohci); - if (timeout >= 0) { -#if 0 /* this does nothing useful, but leave it here in case that changes */ - /* the called routine adds 1 to the passed value */ - usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); -#endif - /* - * XXX - * This is potentially dangerous because it assumes - * that only one device is ever plugged in! - */ - devgone = dev; - } - } - - dev->status = stat; - dev->act_len = transfer_len; - -#ifdef DEBUG - pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - - /* free TDs in urb_priv */ - urb_free_priv (&urb_priv); - return 0; -} - -/* submit routines called from usb.c */ -int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len) -{ - info("submit_bulk_msg"); - return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); -} - -int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup) -{ - int maxsize = usb_maxpacket(dev, pipe); - - info("submit_control_msg"); -#ifdef DEBUG - urb_priv.actual_length = 0; - pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if (!maxsize) { - err("submit_control_message: pipesize for pipe %lx is zero", - pipe); - return -1; - } - if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { - gohci.rh.dev = dev; - /* root hub - redirect */ - return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, - setup); - } - - return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); -} - -int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, int interval) -{ - info("submit_int_msg"); - return -1; -} - -/*-------------------------------------------------------------------------* - * HC functions - *-------------------------------------------------------------------------*/ - -/* reset the HC and BUS */ - -static int hc_reset (ohci_t *ohci) -{ - int timeout = 30; - int smm_timeout = 50; /* 0,5 sec */ - - dbg("%s\n", __FUNCTION__); - - if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ - writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ - info("USB HC TakeOver from SMM"); - while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { - wait_ms (10); - if (--smm_timeout == 0) { - err("USB HC TakeOver failed!"); - return -1; - } - } - } - - /* Disable HC interrupts */ - writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); - - dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n", - ohci->slot_name, - readl(&ohci->regs->control)); - - /* Reset USB (needed by some controllers) */ - writel (0, &ohci->regs->control); - - /* HC Reset requires max 10 us delay */ - writel (OHCI_HCR, &ohci->regs->cmdstatus); - while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { - if (--timeout == 0) { - err("USB HC reset timed out!"); - return -1; - } - udelay (1); - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* Start an OHCI controller, set the BUS operational - * enable interrupts - * connect the virtual root hub */ - -static int hc_start (ohci_t * ohci) -{ - __u32 mask; - unsigned int fminterval; - - ohci->disabled = 1; - - /* Tell the controller where the control and bulk lists are - * The lists are empty now. */ - - writel (0, &ohci->regs->ed_controlhead); - writel (0, &ohci->regs->ed_bulkhead); - - writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ - - fminterval = 0x2edf; - writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); - fminterval |= ((((fminterval - 210) * 6) / 7) << 16); - writel (fminterval, &ohci->regs->fminterval); - writel (0x628, &ohci->regs->lsthresh); - - /* start controller operations */ - ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; - ohci->disabled = 0; - writel (ohci->hc_control, &ohci->regs->control); - - /* disable all interrupts */ - mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | - OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | - OHCI_INTR_OC | OHCI_INTR_MIE); - writel (mask, &ohci->regs->intrdisable); - /* clear all interrupts */ - mask &= ~OHCI_INTR_MIE; - writel (mask, &ohci->regs->intrstatus); - /* Choose the interrupts we care about now - but w/o MIE */ - mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; - writel (mask, &ohci->regs->intrenable); - -#ifdef OHCI_USE_NPS - /* required for AMD-756 and some Mac platforms */ - writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, - &ohci->regs->roothub.a); - writel (RH_HS_LPSC, &ohci->regs->roothub.status); -#endif /* OHCI_USE_NPS */ - -#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) - /* POTPGT delay is bits 24-31, in 2 ms units. */ - mdelay ((roothub_a (ohci) >> 23) & 0x1fe); - - /* connect the virtual root hub */ - ohci->rh.devnum = 0; - - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* an interrupt happens */ - -static int -hc_interrupt (void) -{ - ohci_t *ohci = &gohci; - struct ohci_regs *regs = ohci->regs; - int ints; - int stat = -1; - - if ((ohci->hcca->done_head != 0) && !(m32_swap (ohci->hcca->done_head) & 0x01)) { - ints = OHCI_INTR_WDH; - } else { - ints = readl (®s->intrstatus); - } - - /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ - - if (ints & OHCI_INTR_RHSC) { - got_rhsc = 1; - } - - if (ints & OHCI_INTR_UE) { - ohci->disabled++; - err ("OHCI Unrecoverable Error, controller usb-%s disabled", - ohci->slot_name); - /* e.g. due to PCI Master/Target Abort */ - -#ifdef DEBUG - ohci_dump (ohci, 1); -#else - wait_ms(1); -#endif - /* FIXME: be optimistic, hope that bug won't repeat often. */ - /* Make some non-interrupt context restart the controller. */ - /* Count and limit the retries though; either hardware or */ - /* software errors can go forever... */ - hc_reset (ohci); - return -1; - } - - if (ints & OHCI_INTR_WDH) { - wait_ms(1); - writel (OHCI_INTR_WDH, ®s->intrdisable); - stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); - writel (OHCI_INTR_WDH, ®s->intrenable); - } - - if (ints & OHCI_INTR_SO) { - dbg("USB Schedule overrun\n"); - writel (OHCI_INTR_SO, ®s->intrenable); - stat = -1; - } - - /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ - if (ints & OHCI_INTR_SF) { - unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1; - wait_ms(1); - writel (OHCI_INTR_SF, ®s->intrdisable); - if (ohci->ed_rm_list[frame] != NULL) - writel (OHCI_INTR_SF, ®s->intrenable); - stat = 0xff; - } - - writel (ints, ®s->intrstatus); - return stat; -} - -/*-------------------------------------------------------------------------*/ - -/*-------------------------------------------------------------------------*/ - -/* De-allocate all resources.. */ - -static void hc_release_ohci (ohci_t *ohci) -{ - dbg ("USB HC release ohci usb-%s", ohci->slot_name); - - if (!ohci->disabled) - hc_reset (ohci); -} - -/*-------------------------------------------------------------------------*/ - -/* - * low level initalisation routine, called from usb.c - */ -static char ohci_inited = 0; - -int usb_lowlevel_init(void) -{ - /* - * Enable USB host clock. - */ - *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */ - *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */ - - memset (&gohci, 0, sizeof (ohci_t)); - memset (&urb_priv, 0, sizeof (urb_priv_t)); - - /* align the storage */ - if ((__u32)&ghcca[0] & 0xff) { - err("HCCA not aligned!!"); - return -1; - } - phcca = &ghcca[0]; - info("aligned ghcca %p", phcca); - memset(&ohci_dev, 0, sizeof(struct ohci_device)); - if ((__u32)&ohci_dev.ed[0] & 0x7) { - err("EDs not aligned!!"); - return -1; - } - memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); - if ((__u32)gtd & 0x7) { - err("TDs not aligned!!"); - return -1; - } - ptd = gtd; - gohci.hcca = phcca; - memset (phcca, 0, sizeof (struct ohci_hcca)); - - gohci.disabled = 1; - gohci.sleeping = 0; - gohci.irq = -1; - gohci.regs = (struct ohci_regs *)AT91_USB_HOST_BASE; - - gohci.flags = 0; - gohci.slot_name = "at91rm9200"; - - if (hc_reset (&gohci) < 0) { - hc_release_ohci (&gohci); - /* Initialization failed */ - *AT91C_PMC_PCER = AT91C_ID_UHP; - *AT91C_PMC_SCDR = 1 << AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ - return -1; - } - - /* FIXME this is a second HC reset; why?? */ -/* writel (gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control); - wait_ms (10);*/ - - if (hc_start (&gohci) < 0) { - err ("can't start usb-%s", gohci.slot_name); - hc_release_ohci (&gohci); - /* Initialization failed */ - *AT91C_PMC_PCER = AT91C_ID_UHP; - *AT91C_PMC_SCDR = 1 << AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ - return -1; - } - -#ifdef DEBUG - ohci_dump (&gohci, 1); -#else - wait_ms(1); -#endif - ohci_inited = 1; - return 0; -} - -int usb_lowlevel_stop(void) -{ - /* this gets called really early - before the controller has */ - /* even been initialized! */ - if (!ohci_inited) - return 0; - /* TODO release any interrupts, etc. */ - /* call hc_release_ohci() here ? */ - hc_reset (&gohci); - /* may not want to do this */ - *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; - *AT91C_PMC_SCDR = 1 << AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ - return 0; -} - -#endif /* CONFIG_USB_OHCI */ diff --git a/cpu/arm920t/at91rm9200/usb_ohci.h b/cpu/arm920t/at91rm9200/usb_ohci.h deleted file mode 100644 index ecb4e937b1..0000000000 --- a/cpu/arm920t/at91rm9200/usb_ohci.h +++ /dev/null @@ -1,419 +0,0 @@ -/* - * URB OHCI HCD (Host Controller Driver) for USB. - * - * (C) Copyright 1999 Roman Weissgaerber - * (C) Copyright 2000-2001 David Brownell - * - * usb-ohci.h - */ - - -static int cc_to_error[16] = { - -/* mapping of the OHCI CC status to error codes */ - /* No Error */ 0, - /* CRC Error */ USB_ST_CRC_ERR, - /* Bit Stuff */ USB_ST_BIT_ERR, - /* Data Togg */ USB_ST_CRC_ERR, - /* Stall */ USB_ST_STALLED, - /* DevNotResp */ -1, - /* PIDCheck */ USB_ST_BIT_ERR, - /* UnExpPID */ USB_ST_BIT_ERR, - /* DataOver */ USB_ST_BUF_ERR, - /* DataUnder */ USB_ST_BUF_ERR, - /* reservd */ -1, - /* reservd */ -1, - /* BufferOver */ USB_ST_BUF_ERR, - /* BuffUnder */ USB_ST_BUF_ERR, - /* Not Access */ -1, - /* Not Access */ -1 -}; - -/* ED States */ - -#define ED_NEW 0x00 -#define ED_UNLINK 0x01 -#define ED_OPER 0x02 -#define ED_DEL 0x04 -#define ED_URB_DEL 0x08 - -/* usb_ohci_ed */ -struct ed { - __u32 hwINFO; - __u32 hwTailP; - __u32 hwHeadP; - __u32 hwNextED; - - struct ed *ed_prev; - __u8 int_period; - __u8 int_branch; - __u8 int_load; - __u8 int_interval; - __u8 state; - __u8 type; - __u16 last_iso; - struct ed *ed_rm_list; - - struct usb_device *usb_dev; - __u32 unused[3]; -} __attribute((aligned(16))); -typedef struct ed ed_t; - - -/* TD info field */ -#define TD_CC 0xf0000000 -#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f) -#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28) -#define TD_EC 0x0C000000 -#define TD_T 0x03000000 -#define TD_T_DATA0 0x02000000 -#define TD_T_DATA1 0x03000000 -#define TD_T_TOGGLE 0x00000000 -#define TD_R 0x00040000 -#define TD_DI 0x00E00000 -#define TD_DI_SET(X) (((X) & 0x07)<< 21) -#define TD_DP 0x00180000 -#define TD_DP_SETUP 0x00000000 -#define TD_DP_IN 0x00100000 -#define TD_DP_OUT 0x00080000 - -#define TD_ISO 0x00010000 -#define TD_DEL 0x00020000 - -/* CC Codes */ -#define TD_CC_NOERROR 0x00 -#define TD_CC_CRC 0x01 -#define TD_CC_BITSTUFFING 0x02 -#define TD_CC_DATATOGGLEM 0x03 -#define TD_CC_STALL 0x04 -#define TD_DEVNOTRESP 0x05 -#define TD_PIDCHECKFAIL 0x06 -#define TD_UNEXPECTEDPID 0x07 -#define TD_DATAOVERRUN 0x08 -#define TD_DATAUNDERRUN 0x09 -#define TD_BUFFEROVERRUN 0x0C -#define TD_BUFFERUNDERRUN 0x0D -#define TD_NOTACCESSED 0x0F - - -#define MAXPSW 1 - -struct td { - __u32 hwINFO; - __u32 hwCBP; /* Current Buffer Pointer */ - __u32 hwNextTD; /* Next TD Pointer */ - __u32 hwBE; /* Memory Buffer End Pointer */ - - __u16 hwPSW[MAXPSW]; - __u8 unused; - __u8 index; - struct ed *ed; - struct td *next_dl_td; - struct usb_device *usb_dev; - int transfer_len; - __u32 data; - - __u32 unused2[2]; -} __attribute((aligned(32))); -typedef struct td td_t; - -#define OHCI_ED_SKIP (1 << 14) - -/* - * The HCCA (Host Controller Communications Area) is a 256 byte - * structure defined in the OHCI spec. that the host controller is - * told the base address of. It must be 256-byte aligned. - */ - -#define NUM_INTS 32 /* part of the OHCI standard */ -struct ohci_hcca { - __u32 int_table[NUM_INTS]; /* Interrupt ED table */ - __u16 frame_no; /* current frame number */ - __u16 pad1; /* set to 0 on each frame_no change */ - __u32 done_head; /* info returned for an interrupt */ - u8 reserved_for_hc[116]; -} __attribute((aligned(256))); - - -/* - * Maximum number of root hub ports. - */ -#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */ - -/* - * This is the structure of the OHCI controller's memory mapped I/O - * region. This is Memory Mapped I/O. You must use the readl() and - * writel() macros defined in asm/io.h to access these!! - */ -struct ohci_regs { - /* control and status registers */ - __u32 revision; - __u32 control; - __u32 cmdstatus; - __u32 intrstatus; - __u32 intrenable; - __u32 intrdisable; - /* memory pointers */ - __u32 hcca; - __u32 ed_periodcurrent; - __u32 ed_controlhead; - __u32 ed_controlcurrent; - __u32 ed_bulkhead; - __u32 ed_bulkcurrent; - __u32 donehead; - /* frame counters */ - __u32 fminterval; - __u32 fmremaining; - __u32 fmnumber; - __u32 periodicstart; - __u32 lsthresh; - /* Root hub ports */ - struct ohci_roothub_regs { - __u32 a; - __u32 b; - __u32 status; - __u32 portstatus[MAX_ROOT_PORTS]; - } roothub; -} __attribute((aligned(32))); - - -/* OHCI CONTROL AND STATUS REGISTER MASKS */ - -/* - * HcControl (control) register masks - */ -#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ -#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ -#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ -#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ -#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ -#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ -#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ -#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ -#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ - -/* pre-shifted values for HCFS */ -# define OHCI_USB_RESET (0 << 6) -# define OHCI_USB_RESUME (1 << 6) -# define OHCI_USB_OPER (2 << 6) -# define OHCI_USB_SUSPEND (3 << 6) - -/* - * HcCommandStatus (cmdstatus) register masks - */ -#define OHCI_HCR (1 << 0) /* host controller reset */ -#define OHCI_CLF (1 << 1) /* control list filled */ -#define OHCI_BLF (1 << 2) /* bulk list filled */ -#define OHCI_OCR (1 << 3) /* ownership change request */ -#define OHCI_SOC (3 << 16) /* scheduling overrun count */ - -/* - * masks used with interrupt registers: - * HcInterruptStatus (intrstatus) - * HcInterruptEnable (intrenable) - * HcInterruptDisable (intrdisable) - */ -#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ -#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ -#define OHCI_INTR_SF (1 << 2) /* start frame */ -#define OHCI_INTR_RD (1 << 3) /* resume detect */ -#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ -#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ -#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ -#define OHCI_INTR_OC (1 << 30) /* ownership change */ -#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ - - -/* Virtual Root HUB */ -struct virt_root_hub { - int devnum; /* Address of Root Hub endpoint */ - void *dev; /* was urb */ - void *int_addr; - int send; - int interval; -}; - -/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ - -/* destination of request */ -#define RH_INTERFACE 0x01 -#define RH_ENDPOINT 0x02 -#define RH_OTHER 0x03 - -#define RH_CLASS 0x20 -#define RH_VENDOR 0x40 - -/* Requests: bRequest << 8 | bmRequestType */ -#define RH_GET_STATUS 0x0080 -#define RH_CLEAR_FEATURE 0x0100 -#define RH_SET_FEATURE 0x0300 -#define RH_SET_ADDRESS 0x0500 -#define RH_GET_DESCRIPTOR 0x0680 -#define RH_SET_DESCRIPTOR 0x0700 -#define RH_GET_CONFIGURATION 0x0880 -#define RH_SET_CONFIGURATION 0x0900 -#define RH_GET_STATE 0x0280 -#define RH_GET_INTERFACE 0x0A80 -#define RH_SET_INTERFACE 0x0B00 -#define RH_SYNC_FRAME 0x0C80 -/* Our Vendor Specific Request */ -#define RH_SET_EP 0x2000 - - -/* Hub port features */ -#define RH_PORT_CONNECTION 0x00 -#define RH_PORT_ENABLE 0x01 -#define RH_PORT_SUSPEND 0x02 -#define RH_PORT_OVER_CURRENT 0x03 -#define RH_PORT_RESET 0x04 -#define RH_PORT_POWER 0x08 -#define RH_PORT_LOW_SPEED 0x09 - -#define RH_C_PORT_CONNECTION 0x10 -#define RH_C_PORT_ENABLE 0x11 -#define RH_C_PORT_SUSPEND 0x12 -#define RH_C_PORT_OVER_CURRENT 0x13 -#define RH_C_PORT_RESET 0x14 - -/* Hub features */ -#define RH_C_HUB_LOCAL_POWER 0x00 -#define RH_C_HUB_OVER_CURRENT 0x01 - -#define RH_DEVICE_REMOTE_WAKEUP 0x00 -#define RH_ENDPOINT_STALL 0x01 - -#define RH_ACK 0x01 -#define RH_REQ_ERR -1 -#define RH_NACK 0x00 - - -/* OHCI ROOT HUB REGISTER MASKS */ - -/* roothub.portstatus [i] bits */ -#define RH_PS_CCS 0x00000001 /* current connect status */ -#define RH_PS_PES 0x00000002 /* port enable status*/ -#define RH_PS_PSS 0x00000004 /* port suspend status */ -#define RH_PS_POCI 0x00000008 /* port over current indicator */ -#define RH_PS_PRS 0x00000010 /* port reset status */ -#define RH_PS_PPS 0x00000100 /* port power status */ -#define RH_PS_LSDA 0x00000200 /* low speed device attached */ -#define RH_PS_CSC 0x00010000 /* connect status change */ -#define RH_PS_PESC 0x00020000 /* port enable status change */ -#define RH_PS_PSSC 0x00040000 /* port suspend status change */ -#define RH_PS_OCIC 0x00080000 /* over current indicator change */ -#define RH_PS_PRSC 0x00100000 /* port reset status change */ - -/* roothub.status bits */ -#define RH_HS_LPS 0x00000001 /* local power status */ -#define RH_HS_OCI 0x00000002 /* over current indicator */ -#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ -#define RH_HS_LPSC 0x00010000 /* local power status change */ -#define RH_HS_OCIC 0x00020000 /* over current indicator change */ -#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ - -/* roothub.b masks */ -#define RH_B_DR 0x0000ffff /* device removable flags */ -#define RH_B_PPCM 0xffff0000 /* port power control mask */ - -/* roothub.a masks */ -#define RH_A_NDP (0xff << 0) /* number of downstream ports */ -#define RH_A_PSM (1 << 8) /* power switching mode */ -#define RH_A_NPS (1 << 9) /* no power switching */ -#define RH_A_DT (1 << 10) /* device type (mbz) */ -#define RH_A_OCPM (1 << 11) /* over current protection mode */ -#define RH_A_NOCP (1 << 12) /* no over current protection */ -#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ - -/* urb */ -#define N_URB_TD 48 -typedef struct -{ - ed_t *ed; - __u16 length; /* number of tds associated with this request */ - __u16 td_cnt; /* number of tds already serviced */ - int state; - unsigned long pipe; - int actual_length; - td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */ -} urb_priv_t; -#define URB_DEL 1 - -/* - * This is the full ohci controller description - * - * Note how the "proper" USB information is just - * a subset of what the full implementation needs. (Linus) - */ - - -typedef struct ohci { - struct ohci_hcca *hcca; /* hcca */ - /*dma_addr_t hcca_dma;*/ - - int irq; - int disabled; /* e.g. got a UE, we're hung */ - int sleeping; - unsigned long flags; /* for HC bugs */ - - struct ohci_regs *regs; /* OHCI controller's memory */ - - ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */ - ed_t *ed_bulktail; /* last endpoint of bulk list */ - ed_t *ed_controltail; /* last endpoint of control list */ - int intrstatus; - __u32 hc_control; /* copy of the hc control reg */ - struct usb_device *dev[32]; - struct virt_root_hub rh; - - const char *slot_name; -} ohci_t; - -#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ - -struct ohci_device { - ed_t ed[NUM_EDS]; - int ed_cnt; -}; - -/* hcd */ -/* endpoint */ -static int ep_link(ohci_t * ohci, ed_t * ed); -static int ep_unlink(ohci_t * ohci, ed_t * ed); -static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned long pipe); - -/*-------------------------------------------------------------------------*/ - -/* we need more TDs than EDs */ -#define NUM_TD 64 - -/* +1 so we can align the storage */ -td_t gtd[NUM_TD+1]; -/* pointers to aligned storage */ -td_t *ptd; - -/* TDs ... */ -static inline struct td * -td_alloc (struct usb_device *usb_dev) -{ - int i; - struct td *td; - - td = NULL; - for (i = 0; i < NUM_TD; i++) - { - if (ptd[i].usb_dev == NULL) - { - td = &ptd[i]; - td->usb_dev = usb_dev; - break; - } - } - - return td; -} - -static inline void -ed_free (struct ed *ed) -{ - ed->usb_dev = NULL; -} diff --git a/cpu/pxa/usb.c b/cpu/pxa/usb.c index e89391cf54..1716157043 100644 --- a/cpu/pxa/usb.c +++ b/cpu/pxa/usb.c @@ -22,10 +22,12 @@ */ #include + +#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +# ifdef CONFIG_CPU_MONAHANS + #include -#ifdef CFG_USB_CPU_INIT -# ifdef CONFIG_CPU_MONAHANS int usb_cpu_init() { /* Enable USB host clock. */ @@ -68,4 +70,4 @@ int usb_cpu_stop() return 0; } # endif /* CONFIG_CPU_MONAHANS */ -#endif /* CFG_USB_CPU_INIT */ +#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index f5af7192f9..c32245a249 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -1552,13 +1552,13 @@ static char ohci_inited = 0; int usb_lowlevel_init(void) { -#if CFG_USB_CPU_INIT +#if CFG_USB_OHCI_CPU_INIT /* cpu dependant init */ if(usb_cpu_init()) return -1; #endif -#if CFG_USB_BOARD_INIT +#if CFG_USB_OHCI_BOARD_INIT /* board dependant init */ if(usb_board_init()) return -1; @@ -1593,18 +1593,18 @@ int usb_lowlevel_init(void) gohci.regs = (struct ohci_regs *)CFG_USB_OHCI_REGS_BASE; gohci.flags = 0; - gohci.slot_name = CFG_USB_SLOT_NAME; + gohci.slot_name = CFG_USB_OHCI_SLOT_NAME; if (hc_reset (&gohci) < 0) { hc_release_ohci (&gohci); err ("can't reset usb-%s", gohci.slot_name); /* Initialization failed disable clocks */ -#if CFG_USB_BOARD_INIT +#if CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ usb_board_stop(); #endif -#if CFG_USB_CPU_INIT +#if CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ usb_cpu_stop(); #endif @@ -1618,12 +1618,12 @@ int usb_lowlevel_init(void) err ("can't start usb-%s", gohci.slot_name); hc_release_ohci (&gohci); /* Initialization failed */ -#if CFG_USB_BOARD_INIT +#if CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ usb_board_stop(); #endif -#if CFG_USB_CPU_INIT +#if CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ usb_cpu_stop(); #endif @@ -1649,13 +1649,13 @@ int usb_lowlevel_stop(void) /* call hc_release_ohci() here ? */ hc_reset (&gohci); -#if CFG_USB_BOARD_INIT +#if CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ if(usb_board_stop()) return -1; #endif -#if CFG_USB_CPU_INIT +#if CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ if(usb_cpu_stop()) return -1; diff --git a/include/configs/delta.h b/include/configs/delta.h index e6b05e0595..fea821ab9a 100644 --- a/include/configs/delta.h +++ b/include/configs/delta.h @@ -107,10 +107,10 @@ #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 -#undef CFG_USB_BOARD_INIT -#define CFG_USB_CPU_INIT 1 +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT 1 #define CFG_USB_OHCI_REGS_BASE OHCI_REGS_BASE -#define CFG_USB_SLOT_NAME "delta" +#define CFG_USB_OHCI_SLOT_NAME "delta" #define LITTLEENDIAN 1 /* used by usb_ohci.c */ diff --git a/include/configs/mp2usb.h b/include/configs/mp2usb.h index 04f1f24080..edb20f8d88 100644 --- a/include/configs/mp2usb.h +++ b/include/configs/mp2usb.h @@ -107,6 +107,11 @@ #define CONFIG_DOS_PARTITION 1 #define CONFIG_AT91C_PQFP_UHPBUG 1 +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT 1 +#define CFG_USB_OHCI_REGS_BASE AT91_USB_HOST_BASE +#define CFG_USB_OHCI_SLOT_NAME "at91rm9200" + #undef CONFIG_HARD_I2C #ifdef CONFIG_HARD_I2C @@ -127,7 +132,7 @@ #define CONFIG_COMMANDS \ ((CONFIG_CMD_DFL | \ CFG_CMD_DATE | \ - CFG_CMD_DHCP | \ + CFG_CMD_DHCP | \ CFG_CMD_EEPROM | \ CFG_CMD_I2C | \ CFG_CMD_NFS | \ @@ -136,7 +141,7 @@ #else #define CONFIG_COMMANDS \ ((CONFIG_CMD_DFL | \ - CFG_CMD_DHCP | \ + CFG_CMD_DHCP | \ CFG_CMD_NFS | \ CFG_CMD_SNTP | \ CFG_CMD_USB | \ @@ -156,7 +161,7 @@ #define CONFIG_NR_DRAM_BANKS 1 #define PHYS_SDRAM 0x20000000 -#define PHYS_SDRAM_SIZE 0x08000000 /* 128 megs */ +#define PHYS_SDRAM_SIZE 0x08000000 /* 128 megs */ #define CFG_MEMTEST_START PHYS_SDRAM #define CFG_MEMTEST_END CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 262144 From ddf83a2fcef1a670c45fc585119dcc1fe062c4a9 Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Tue, 30 May 2006 16:56:14 +0200 Subject: [PATCH 4/4] Support generic OHCI support for the s3c24x0 cpu. --- cpu/arm920t/at91rm9200/usb.c | 6 ++ cpu/arm920t/s3c24x0/Makefile | 2 +- cpu/arm920t/s3c24x0/usb.c | 72 +++++++++++++++++++ cpu/pxa/usb.c | 7 +- drivers/usb_ohci.c | 133 ++++++++++++++++++++++++++++------- drivers/usb_ohci.h | 2 + include/configs/trab.h | 5 ++ 7 files changed, 200 insertions(+), 27 deletions(-) create mode 100644 cpu/arm920t/s3c24x0/usb.c diff --git a/cpu/arm920t/at91rm9200/usb.c b/cpu/arm920t/at91rm9200/usb.c index 7b83f23eb3..98e3cdd58a 100644 --- a/cpu/arm920t/at91rm9200/usb.c +++ b/cpu/arm920t/at91rm9200/usb.c @@ -43,5 +43,11 @@ int usb_cpu_stop() *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ return 0; } + +int usb_cpu_init_fail() +{ + usb_cpu_stop(); +} + # endif /* CONFIG_AT91RM9200 */ #endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ diff --git a/cpu/arm920t/s3c24x0/Makefile b/cpu/arm920t/s3c24x0/Makefile index af9e4effce..f81f84dd27 100644 --- a/cpu/arm920t/s3c24x0/Makefile +++ b/cpu/arm920t/s3c24x0/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = lib$(SOC).a OBJS = i2c.o interrupts.o serial.o speed.o \ - usb_ohci.o + usb.o all: .depend $(LIB) diff --git a/cpu/arm920t/s3c24x0/usb.c b/cpu/arm920t/s3c24x0/usb.c new file mode 100644 index 0000000000..8114034cc1 --- /dev/null +++ b/cpu/arm920t/s3c24x0/usb.c @@ -0,0 +1,72 @@ +/* + * (C) Copyright 2006 + * DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) +# if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) + +#if defined(CONFIG_S3C2400) +# include +#elif defined(CONFIG_S3C2410) +# include +#endif + +int usb_cpu_init() +{ + + S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); + S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO(); + + /* + * Set the 48 MHz UPLL clocking. Values are taken from + * "PLL value selection guide", 6-23, s3c2400_UM.pdf. + */ + clk_power->UPLLCON = ((40 << 12) + (1 << 4) + 2); + gpio->MISCCR |= 0x8; /* 1 = use pads related USB for USB host */ + + /* + * Enable USB host clock. + */ + clk_power->CLKCON |= (1 << 4); + + return 0; +} + +int usb_cpu_stop() +{ + S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); + /* may not want to do this */ + clk_power->CLKCON &= ~(1 << 4); + return 0; +} + +int usb_cpu_init_fail() +{ + S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); + clk_power->CLKCON &= ~(1 << 4); + return 0; +} + +# endif /* defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) */ +#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ diff --git a/cpu/pxa/usb.c b/cpu/pxa/usb.c index 1716157043..bff5bfb6ae 100644 --- a/cpu/pxa/usb.c +++ b/cpu/pxa/usb.c @@ -66,8 +66,13 @@ int usb_cpu_stop() { /* may not want to do this */ /* CKENA &= ~(CKENA_2_USBHOST | CKENA_20_UDC); */ - return 0; } + +int usb_cpu_init_fail() +{ + return 0; +} + # endif /* CONFIG_CPU_MONAHANS */ #endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c index c32245a249..9b3ca1232d 100644 --- a/drivers/usb_ohci.c +++ b/drivers/usb_ohci.c @@ -21,7 +21,7 @@ * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License @@ -45,13 +45,25 @@ #ifdef CONFIG_USB_OHCI -#include +#if defined(CONFIG_S3C2400) +# include +#elif defined(CONFIG_S3C2410) +# include +#elif defined(CONFIG_ARM920T) +# include +#elif defined(CONFIG_CPU_MONAHANS) +# include +#endif #include #include #include "usb_ohci.h" -#ifdef CONFIG_ARM920T +#undef S3C24X0_merge + +#if defined(CONFIG_ARM920T) || \ + defined(CONFIG_S3C2400) || \ + defined(CONFIG_S3C2410) # define OHCI_USE_NPS /* force NoPowerSwitching mode */ #endif @@ -98,6 +110,12 @@ int got_rhsc; /* device which was disconnected */ struct usb_device *devgone; +#ifdef S3C24X0_merge +/* flag guarding URB transation */ +int urb_finished = 0; +#endif + + /*-------------------------------------------------------------------------*/ /* AMD-756 (D2 rev) reports corrupt register contents in some cases. @@ -402,6 +420,17 @@ int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, err("sohci_submit_job: EPIPE"); return -1; } +#ifdef S3C24X0_merge + /* if we have an unfinished URB from previous transaction let's + * fail and scream as quickly as possible so as not to corrupt + * further communication */ + if (!urb_finished) { + err("sohci_submit_job: URB NOT FINISHED"); + return -1; + } + /* we're about to begin a new transaction here so mark the URB unfinished */ + urb_finished = 0; +#endif /* every endpoint has a ed, locate and fill it */ if (!(ed = ep_add_ed (dev, pipe))) { @@ -574,12 +603,14 @@ static int ep_unlink (ohci_t *ohci, ed_t *ed) /*-------------------------------------------------------------------------*/ -/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, - * but the USB stack is a little bit stateless so we do it at every transaction - * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK - * in all other cases the state is left unchanged - * the ed info fields are setted anyway even though most of them should not change */ - +/* add/reinit an endpoint; this should be done once at the + * usb_set_configuration command, but the USB stack is a little bit + * stateless so we do it at every transaction if the state of the ed + * is ED_NEW then a dummy td is added and the state is changed to + * ED_UNLINK in all other cases the state is left unchanged the ed + * info fields are setted anyway even though most of them should not + * change + */ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) { td_t *td; @@ -663,7 +694,9 @@ static void td_fill (ohci_t *ohci, unsigned int info, else td->hwBE = 0; td->hwNextTD = m32_swap (td_pt); +#ifndef S3C24X0_merge td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000); +#endif /* append to queue */ td->ed->hwTailP = td->hwNextTD; @@ -830,7 +863,18 @@ static int dl_done_list (ohci_t *ohci, td_t *td_list) dbg("ConditionCode %#x", cc); stat = cc_to_error[cc]; } - +#ifdef S3C24X0_merge + /* see if this done list makes for all TD's of current URB, + * and mark the URB finished if so */ + if (++(lurb_priv->td_cnt) == lurb_priv->length) { + if ((ed->state & (ED_OPER | ED_UNLINK))) + urb_finished = 1; + else + dbg("dl_done_list: strange.., ED state %x, ed->state\n"); + } else + dbg("dl_done_list: processing TD %x, len %x\n", lurb_priv->td_cnt, + lurb_priv->length); +#endif if (ed->state != ED_NEW) { edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0; edTailP = m32_swap (ed->hwTailP); @@ -1172,7 +1216,7 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); } len = min_t(unsigned int, leni, - min_t(unsigned int, data_buf [0], wLength)); + min_t(unsigned int, data_buf [0], wLength)); OK (len); } @@ -1260,18 +1304,38 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, stat = USB_ST_CRC_ERR; break; } + +#ifdef S3C24X0_merge + /* NOTE: since we are not interrupt driven in U-Boot and always + * handle only one URB at a time, we cannot assume the + * transaction finished on the first successful return from + * hc_interrupt().. unless the flag for current URB is set, + * meaning that all TD's to/from device got actually + * transferred and processed. If the current URB is not + * finished we need to re-iterate this loop so as + * hc_interrupt() gets called again as there needs to be some + * more TD's to process still */ + if ((stat >= 0) && (stat != 0xff) && (urb_finished)) { +#else if (stat >= 0 && stat != 0xff) { +#endif /* 0xff is returned for an SF-interrupt */ break; } + if (--timeout) { wait_ms(1); } else { err("CTL:TIMEOUT "); +#ifdef S3C24X0_merge + dbg("submit_common_msg: TO status %x\n", stat); + urb_finished = 1; +#endif stat = USB_ST_CRC_ERR; break; } } +#ifndef S3C24X0_merge /* we got an Root Hub Status Change interrupt */ if (got_rhsc) { #ifdef DEBUG @@ -1293,6 +1357,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, devgone = dev; } } +#endif /* S3C24X0_merge */ dev->status = stat; dev->act_len = transfer_len; @@ -1462,24 +1527,40 @@ static int hc_start (ohci_t * ohci) /* an interrupt happens */ -static int -hc_interrupt (void) +static int hc_interrupt (void) { ohci_t *ohci = &gohci; struct ohci_regs *regs = ohci->regs; int ints; int stat = -1; +#ifdef S3C24X0_merge + + if ((ohci->hcca->done_head != 0) && + !(m32_swap (ohci->hcca->done_head) & 0x01)) { + ints = OHCI_INTR_WDH; + } else if ((ints = readl (®s->intrstatus)) == ~(u32)0) { + ohci->disabled++; + err ("%s device removed!", ohci->slot_name); + return -1; + } else if ((ints &= readl (®s->intrenable)) == 0) { + dbg("hc_interrupt: returning..\n"); + return 0xff; + } +#else if ((ohci->hcca->done_head != 0) && !(m32_swap (ohci->hcca->done_head) & 0x01)) { ints = OHCI_INTR_WDH; } else { ints = readl (®s->intrstatus); } - +#endif /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ if (ints & OHCI_INTR_RHSC) { got_rhsc = 1; +#ifdef S3C24X0_merge + stat = 0xff; +#endif } if (ints & OHCI_INTR_UE) { @@ -1552,13 +1633,13 @@ static char ohci_inited = 0; int usb_lowlevel_init(void) { -#if CFG_USB_OHCI_CPU_INIT +#ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant init */ if(usb_cpu_init()) return -1; #endif -#if CFG_USB_OHCI_BOARD_INIT +#ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant init */ if(usb_board_init()) return -1; @@ -1598,15 +1679,14 @@ int usb_lowlevel_init(void) if (hc_reset (&gohci) < 0) { hc_release_ohci (&gohci); err ("can't reset usb-%s", gohci.slot_name); - /* Initialization failed disable clocks */ -#if CFG_USB_OHCI_BOARD_INIT +#ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ - usb_board_stop(); + usb_board_init_fail(); #endif -#if CFG_USB_OHCI_CPU_INIT +#ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ - usb_cpu_stop(); + usb_cpu_init_fail(); #endif return -1; } @@ -1618,12 +1698,12 @@ int usb_lowlevel_init(void) err ("can't start usb-%s", gohci.slot_name); hc_release_ohci (&gohci); /* Initialization failed */ -#if CFG_USB_OHCI_BOARD_INIT +#ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ usb_board_stop(); #endif -#if CFG_USB_OHCI_CPU_INIT +#ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ usb_cpu_stop(); #endif @@ -1634,6 +1714,9 @@ int usb_lowlevel_init(void) ohci_dump (&gohci, 1); #else wait_ms(1); +# ifdef S3C24X0_merge + urb_finished = 1; +# endif #endif ohci_inited = 1; return 0; @@ -1649,13 +1732,13 @@ int usb_lowlevel_stop(void) /* call hc_release_ohci() here ? */ hc_reset (&gohci); -#if CFG_USB_OHCI_BOARD_INIT +#ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ if(usb_board_stop()) return -1; #endif -#if CFG_USB_OHCI_CPU_INIT +#ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ if(usb_cpu_stop()) return -1; diff --git a/drivers/usb_ohci.h b/drivers/usb_ohci.h index c37b5f6005..a1b36ed83c 100644 --- a/drivers/usb_ohci.h +++ b/drivers/usb_ohci.h @@ -11,11 +11,13 @@ #ifdef CFG_USB_BOARD_INIT extern int usb_board_init(void); extern int usb_board_stop(void); +extern int usb_cpu_init_fail(void); #endif #ifdef CFG_USB_CPU_INIT extern int usb_cpu_init(void); extern int usb_cpu_stop(void); +extern int usb_cpu_init_fail(void); #endif diff --git a/include/configs/trab.h b/include/configs/trab.h index 85ee756e05..b6d4bcf178 100644 --- a/include/configs/trab.h +++ b/include/configs/trab.h @@ -84,6 +84,11 @@ #define CONFIG_USB_STORAGE 1 #define CONFIG_DOS_PARTITION 1 +#undef CFG_USB_OHCI_BOARD_INIT +#define CFG_USB_OHCI_CPU_INIT 1 +#define CFG_USB_OHCI_REGS_BASE S3C24X0_USB_HOST_BASE +#define CFG_USB_OHCI_SLOT_NAME "s3c2400" + /* * Size of malloc() pool */