redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

MLK-18579-1 usb: cdns3: using upstream multiple TD driver 

Keep the internal framework, just use the UDC driver from
upstream version which supports multiple TD.

Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Peter Chen 2019-06-19 16:06:40 +08:00 committed by Dong Aisheng
parent a07b01773a
commit b9fb073145
10 changed files with 4644 additions and 2245 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/cdns3/Makefile
View File

@ -1,5 +1,5 @@
obj-$(CONFIG_USB_CDNS3) += cdns3.o
cdns3-y := core.o
cdns3-$(CONFIG_USB_CDNS3_GADGET) += gadget.o
cdns3-$(CONFIG_USB_CDNS3_GADGET) += gadget.o ep0.o trace.o
cdns3-$(CONFIG_USB_CDNS3_HOST) += host.o

53
drivers/usb/cdns3/core.c
View File

@ -1,7 +1,7 @@
/**
* core.c - Cadence USB3 DRD Controller Core file
*
* Copyright 2017 NXP
* Copyright 2017-2019 NXP
*
* Authors: Peter Chen <peter.chen@nxp.com>
*
@ -36,6 +36,39 @@
#include "host-export.h"
#include "gadget-export.h"
/**
* cdns3_handshake - spin reading until handshake completes or fails
* @ptr: address of device controller register to be read
* @mask: bits to look at in result of read
* @done: value of those bits when handshake succeeds
* @usec: timeout in microseconds
*
* Returns negative errno, or zero on success
*
* Success happens when the "mask" bits have the specified value (hardware
* handshake done). There are two failure modes: "usec" have passed (major
* hardware flakeout), or the register reads as all-ones (hardware removed).
*/
int cdns3_handshake(void __iomem *ptr, u32 mask, u32 done, int usec)
{
u32 result;
do {
result = readl(ptr);
if (result == ~(u32)0) /* card removed */
return -ENODEV;
result &= mask;
if (result == done)
return 0;
udelay(1);
usec--;
} while (usec > 0);
return -ETIMEDOUT;
}
static void cdns3_usb_phy_init(void __iomem *regs)
{
u32 value;
@ -311,6 +344,18 @@ static irqreturn_t cdns3_irq(int irq, void *data)
return ret;
}
static irqreturn_t cdns3_thread_irq(int irq, void *data)
{
struct cdns3 *cdns = data;
irqreturn_t ret = IRQ_NONE;
/* Handle device/host interrupt */
if (cdns->role != CDNS3_ROLE_END && cdns3_role(cdns)->thread_irq)
ret = cdns3_role(cdns)->thread_irq(cdns);
return ret;
}
static int cdns3_get_clks(struct device *dev)
{
struct cdns3 *cdns = dev_get_drvdata(dev);
@ -388,7 +433,7 @@ static void cdns3_disable_unprepare_clks(struct device *dev)
static void cdns3_remove_roles(struct cdns3 *cdns)
{
cdns3_gadget_remove(cdns);
cdns3_gadget_exit(cdns);
cdns3_host_remove(cdns);
}
@ -656,8 +701,8 @@ static int cdns3_probe(struct platform_device *pdev)
goto err3;
}
ret = devm_request_irq(dev, cdns->irq, cdns3_irq, IRQF_SHARED,
dev_name(dev), cdns);
ret = devm_request_threaded_irq(dev, cdns->irq, cdns3_irq,
cdns3_thread_irq, IRQF_SHARED, dev_name(dev), cdns);
if (ret)
goto err4;

9
drivers/usb/cdns3/core.h
View File

@ -1,7 +1,7 @@
/**
* core.h - Cadence USB3 DRD Controller Core header file
*
* Copyright 2017 NXP
* Copyright 2017-2019 NXP
*
* Authors: Peter Chen <peter.chen@nxp.com>
*
@ -35,6 +35,7 @@ enum cdns3_roles {
* @suspend: suspend callback for this role
* @resume: resume callback for this role
* @irq: irq handler for this role
* @thread_irq: thread irq handler for this role
* @name: role name string (host/gadget)
*/
struct cdns3_role_driver {
@ -43,6 +44,7 @@ struct cdns3_role_driver {
int (*suspend)(struct cdns3 *, bool do_wakeup);
int (*resume)(struct cdns3 *, bool hibernated);
irqreturn_t (*irq)(struct cdns3 *);
irqreturn_t (*thread_irq)(struct cdns3 *);
const char *name;
};
@ -74,7 +76,7 @@ struct cdns3 {
struct device *dev;
void __iomem *xhci_regs;
struct resource *xhci_res;
struct usbss_dev_register_block_type __iomem *dev_regs;
struct cdns3_usb_regs __iomem *dev_regs;
void __iomem *none_core_regs;
void __iomem *phy_regs;
void __iomem *otg_regs;
@ -82,7 +84,7 @@ struct cdns3 {
struct cdns3_role_driver *roles[CDNS3_ROLE_END];
enum cdns3_roles role;
struct device *host_dev;
struct device *gadget_dev;
struct cdns3_device *gadget_dev;
struct usb_phy *usbphy;
struct clk *cdns3_clks[CDNS3_NUM_OF_CLKS];
struct extcon_dev *extcon;
@ -127,5 +129,6 @@ static inline void cdns3_role_stop(struct cdns3 *cdns)
cdns->role = CDNS3_ROLE_END;
mutex_unlock(&cdns->mutex);
}
int cdns3_handshake(void __iomem *ptr, u32 mask, u32 done, int usec);
#endif /* __DRIVERS_USB_CDNS3_CORE_H */

155
drivers/usb/cdns3/debug.h 100644
View File

@ -0,0 +1,155 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Cadence USBSS DRD Driver.
* Debug header file.
*
* Copyright (C) 2018-2019 Cadence.
*
* Author: Pawel Laszczak <pawell@cadence.com>
*/
#ifndef __LINUX_CDNS3_DEBUG
#define __LINUX_CDNS3_DEBUG
static inline char *cdns3_decode_usb_irq(char *str,
enum usb_device_speed speed,
u32 usb_ists)
{
int ret;
ret = sprintf(str, "IRQ %08x = ", usb_ists);
if (usb_ists & (USB_ISTS_CON2I | USB_ISTS_CONI)) {
ret += sprintf(str + ret, "Connection %s\n",
usb_speed_string(speed));
}
if (usb_ists & USB_ISTS_DIS2I || usb_ists & USB_ISTS_DISI)
ret += sprintf(str + ret, "Disconnection ");
if (usb_ists & USB_ISTS_L2ENTI)
ret += sprintf(str + ret, "suspended ");
if (usb_ists & USB_ISTS_L2EXTI)
ret += sprintf(str + ret, "L2 exit ");
if (usb_ists & USB_ISTS_U3EXTI)
ret += sprintf(str + ret, "U3 exit ");
if (usb_ists & USB_ISTS_UWRESI)
ret += sprintf(str + ret, "Warm Reset ");
if (usb_ists & USB_ISTS_UHRESI)
ret += sprintf(str + ret, "Hot Reset ");
if (usb_ists & USB_ISTS_U2RESI)
ret += sprintf(str + ret, "Reset");
return str;
}
static inline char *cdns3_decode_ep_irq(char *str,
u32 ep_sts,
const char *ep_name)
{
int ret;
ret = sprintf(str, "IRQ for %s: %08x ", ep_name, ep_sts);
if (ep_sts & EP_STS_SETUP)
ret += sprintf(str + ret, "SETUP ");
if (ep_sts & EP_STS_IOC)
ret += sprintf(str + ret, "IOC ");
if (ep_sts & EP_STS_ISP)
ret += sprintf(str + ret, "ISP ");
if (ep_sts & EP_STS_DESCMIS)
ret += sprintf(str + ret, "DESCMIS ");
if (ep_sts & EP_STS_STREAMR)
ret += sprintf(str + ret, "STREAMR ");
if (ep_sts & EP_STS_MD_EXIT)
ret += sprintf(str + ret, "MD_EXIT ");
if (ep_sts & EP_STS_TRBERR)
ret += sprintf(str + ret, "TRBERR ");
if (ep_sts & EP_STS_NRDY)
ret += sprintf(str + ret, "NRDY ");
if (ep_sts & EP_STS_PRIME)
ret += sprintf(str + ret, "PRIME ");
if (ep_sts & EP_STS_SIDERR)
ret += sprintf(str + ret, "SIDERRT ");
if (ep_sts & EP_STS_OUTSMM)
ret += sprintf(str + ret, "OUTSMM ");
if (ep_sts & EP_STS_ISOERR)
ret += sprintf(str + ret, "ISOERR ");
if (ep_sts & EP_STS_IOT)
ret += sprintf(str + ret, "IOT ");
return str;
}
static inline char *cdns3_decode_epx_irq(char *str,
char *ep_name,
u32 ep_sts)
{
return cdns3_decode_ep_irq(str, ep_sts, ep_name);
}
static inline char *cdns3_decode_ep0_irq(char *str,
int dir,
u32 ep_sts)
{
return cdns3_decode_ep_irq(str, ep_sts,
dir ? "ep0IN" : "ep0OUT");
}
/**
* Debug a transfer ring.
*
* Prints out all TRBs in the endpoint ring, even those after the Link TRB.
*.
*/
static inline char *cdns3_dbg_ring(struct cdns3_endpoint *priv_ep,
struct cdns3_trb *ring, char *str)
{
dma_addr_t addr = priv_ep->trb_pool_dma;
struct cdns3_trb *trb;
int trb_per_sector;
int ret = 0;
int i;
trb_per_sector = GET_TRBS_PER_SEGMENT(priv_ep->type);
trb = &priv_ep->trb_pool[priv_ep->dequeue];
ret += sprintf(str + ret, "\n\t\tRing contents for %s:", priv_ep->name);
ret += sprintf(str + ret,
"\n\t\tRing deq index: %d, trb: %p (virt), 0x%llx (dma)\n",
priv_ep->dequeue, trb,
(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
trb = &priv_ep->trb_pool[priv_ep->enqueue];
ret += sprintf(str + ret,
"\t\tRing enq index: %d, trb: %p (virt), 0x%llx (dma)\n",
priv_ep->enqueue, trb,
(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
ret += sprintf(str + ret,
"\t\tfree trbs: %d, CCS=%d, PCS=%d\n",
priv_ep->free_trbs, priv_ep->ccs, priv_ep->pcs);
if (trb_per_sector > TRBS_PER_SEGMENT)
trb_per_sector = TRBS_PER_SEGMENT;
if (trb_per_sector > TRBS_PER_SEGMENT) {
sprintf(str + ret, "\t\tTo big transfer ring %d\n",
trb_per_sector);
return str;
}
for (i = 0; i < trb_per_sector; ++i) {
trb = &ring[i];
ret += sprintf(str + ret,
"\t\t@%pad %08x %08x %08x\n", &addr,
le32_to_cpu(trb->buffer),
le32_to_cpu(trb->length),
le32_to_cpu(trb->control));
addr += sizeof(*trb);
}
return str;
}
void cdns3_dbg(struct cdns3_device *priv_dev, const char *fmt, ...);
#endif /*__LINUX_CDNS3_DEBUG*/

914
drivers/usb/cdns3/ep0.c 100644
View File

@ -0,0 +1,914 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Cadence USBSS DRD Driver - gadget side.
*
* Copyright (C) 2018 Cadence Design Systems.
* Copyright (C) 2017-2018 NXP
*
* Authors: Pawel Jez <pjez@cadence.com>,
* Pawel Laszczak <pawell@cadence.com>
* Peter Chen <peter.chen@nxp.com>
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/usb/composite.h>
#include "gadget.h"
#include "trace.h"
#include "core.h"
static struct usb_endpoint_descriptor cdns3_gadget_ep0_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_CONTROL,
};
/**
* cdns3_ep0_run_transfer - Do transfer on default endpoint hardware
* @priv_dev: extended gadget object
* @dma_addr: physical address where data is/will be stored
* @length: data length
* @erdy: set it to 1 when ERDY packet should be sent -
* exit from flow control state
*/
static void cdns3_ep0_run_transfer(struct cdns3_device *priv_dev,
dma_addr_t dma_addr,
unsigned int length, int erdy)
{
struct cdns3_usb_regs __iomem *regs = priv_dev->regs;
struct cdns3_endpoint *priv_ep = priv_dev->eps[0];
priv_ep->trb_pool->buffer = TRB_BUFFER(dma_addr);
priv_ep->trb_pool->length = TRB_LEN(length);
priv_ep->trb_pool->control = TRB_CYCLE | TRB_IOC | TRB_TYPE(TRB_NORMAL);
trace_cdns3_prepare_trb(priv_ep, priv_ep->trb_pool);
cdns3_select_ep(priv_dev, priv_dev->ep0_data_dir);
writel(EP_STS_TRBERR, &regs->ep_sts);
writel(EP_TRADDR_TRADDR(priv_ep->trb_pool_dma), &regs->ep_traddr);
trace_cdns3_doorbell_ep0(priv_dev->ep0_data_dir ? "ep0in" : "ep0out",
readl(&regs->ep_traddr));
/* TRB should be prepared before starting transfer */
writel(EP_CMD_DRDY, &regs->ep_cmd);
if (erdy)
writel(EP_CMD_ERDY, &priv_dev->regs->ep_cmd);
}
/**
* cdns3_ep0_delegate_req - Returns status of handling setup packet
* Setup is handled by gadget driver
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns zero on success or negative value on failure
*/
static int cdns3_ep0_delegate_req(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
int ret;
spin_unlock(&priv_dev->lock);
priv_dev->setup_pending = 1;
ret = priv_dev->gadget_driver->setup(&priv_dev->gadget, ctrl_req);
priv_dev->setup_pending = 0;
spin_lock(&priv_dev->lock);
return ret;
}
static void cdns3_prepare_setup_packet(struct cdns3_device *priv_dev)
{
priv_dev->ep0_data_dir = 0;
priv_dev->ep0_stage = CDNS3_SETUP_STAGE;
cdns3_ep0_run_transfer(priv_dev, priv_dev->setup_dma,
sizeof(struct usb_ctrlrequest), 0);
}
static void cdns3_ep0_complete_setup(struct cdns3_device *priv_dev,
u8 send_stall, u8 send_erdy)
{
struct cdns3_endpoint *priv_ep = priv_dev->eps[0];
struct usb_request *request;
request = cdns3_next_request(&priv_ep->pending_req_list);
if (request)
list_del_init(&request->list);
if (send_stall) {
cdns3_dbg(priv_ep->cdns3_dev, "STALL for ep0\n");
/* set_stall on ep0 */
cdns3_select_ep(priv_dev, 0x00);
writel(EP_CMD_SSTALL, &priv_dev->regs->ep_cmd);
} else {
cdns3_prepare_setup_packet(priv_dev);
}
priv_dev->ep0_stage = CDNS3_SETUP_STAGE;
writel((send_erdy ? EP_CMD_ERDY : 0) | EP_CMD_REQ_CMPL,
&priv_dev->regs->ep_cmd);
}
/**
* cdns3_req_ep0_set_configuration - Handling of SET_CONFIG standard USB request
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, USB_GADGET_DELAYED_STATUS on deferred status stage,
* error code on error
*/
static int cdns3_req_ep0_set_configuration(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
enum usb_device_state device_state = priv_dev->gadget.state;
struct cdns3_endpoint *priv_ep;
u32 config = le16_to_cpu(ctrl_req->wValue);
int result = 0;
int i;
switch (device_state) {
case USB_STATE_ADDRESS:
/* Configure non-control EPs */
for (i = 0; i < CDNS3_ENDPOINTS_MAX_COUNT; i++) {
priv_ep = priv_dev->eps[i];
if (!priv_ep)
continue;
if (priv_ep->flags & EP_CLAIMED)
cdns3_ep_config(priv_ep);
}
result = cdns3_ep0_delegate_req(priv_dev, ctrl_req);
if (result)
return result;
if (config) {
cdns3_set_hw_configuration(priv_dev);
} else {
cdns3_hw_reset_eps_config(priv_dev);
usb_gadget_set_state(&priv_dev->gadget,
USB_STATE_ADDRESS);
}
break;
case USB_STATE_CONFIGURED:
result = cdns3_ep0_delegate_req(priv_dev, ctrl_req);
if (!config && !result) {
cdns3_hw_reset_eps_config(priv_dev);
usb_gadget_set_state(&priv_dev->gadget,
USB_STATE_ADDRESS);
}
break;
default:
result = -EINVAL;
}
return result;
}
/**
* cdns3_req_ep0_set_address - Handling of SET_ADDRESS standard USB request
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, error code on error
*/
static int cdns3_req_ep0_set_address(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
enum usb_device_state device_state = priv_dev->gadget.state;
u32 reg;
u32 addr;
addr = le16_to_cpu(ctrl_req->wValue);
if (addr > USB_DEVICE_MAX_ADDRESS) {
dev_err(priv_dev->dev,
"Device address (%d) cannot be greater than %d\n",
addr, USB_DEVICE_MAX_ADDRESS);
return -EINVAL;
}
if (device_state == USB_STATE_CONFIGURED) {
dev_err(priv_dev->dev,
"can't set_address from configured state\n");
return -EINVAL;
}
reg = readl(&priv_dev->regs->usb_cmd);
writel(reg | USB_CMD_FADDR(addr) | USB_CMD_SET_ADDR,
&priv_dev->regs->usb_cmd);
usb_gadget_set_state(&priv_dev->gadget,
(addr ? USB_STATE_ADDRESS : USB_STATE_DEFAULT));
return 0;
}
/**
* cdns3_req_ep0_get_status - Handling of GET_STATUS standard USB request
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, error code on error
*/
static int cdns3_req_ep0_get_status(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl)
{
__le16 *response_pkt;
u16 usb_status = 0;
u32 recip;
u32 reg;
recip = ctrl->bRequestType & USB_RECIP_MASK;
switch (recip) {
case USB_RECIP_DEVICE:
/* self powered */
if (priv_dev->is_selfpowered)
usb_status = BIT(USB_DEVICE_SELF_POWERED);
if (priv_dev->wake_up_flag)
usb_status |= BIT(USB_DEVICE_REMOTE_WAKEUP);
if (priv_dev->gadget.speed != USB_SPEED_SUPER)
break;
reg = readl(&priv_dev->regs->usb_sts);
if (priv_dev->u1_allowed)
usb_status |= BIT(USB_DEV_STAT_U1_ENABLED);
if (priv_dev->u2_allowed)
usb_status |= BIT(USB_DEV_STAT_U2_ENABLED);
break;
case USB_RECIP_INTERFACE:
return cdns3_ep0_delegate_req(priv_dev, ctrl);
case USB_RECIP_ENDPOINT:
/* check if endpoint is stalled */
cdns3_select_ep(priv_dev, ctrl->wIndex);
if (EP_STS_STALL(readl(&priv_dev->regs->ep_sts)))
usb_status = BIT(USB_ENDPOINT_HALT);
break;
default:
return -EINVAL;
}
response_pkt = (__le16 *)priv_dev->setup_buf;
*response_pkt = cpu_to_le16(usb_status);
cdns3_ep0_run_transfer(priv_dev, priv_dev->setup_dma,
sizeof(*response_pkt), 1);
return 0;
}
static int cdns3_ep0_feature_handle_device(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl,
int set)
{
enum usb_device_state state;
enum usb_device_speed speed;
int ret = 0;
u32 wValue;
u32 wIndex;
u16 tmode;
wValue = le16_to_cpu(ctrl->wValue);
wIndex = le16_to_cpu(ctrl->wIndex);
state = priv_dev->gadget.state;
speed = priv_dev->gadget.speed;
switch (ctrl->wValue) {
case USB_DEVICE_REMOTE_WAKEUP:
priv_dev->wake_up_flag = !!set;
break;
case USB_DEVICE_U1_ENABLE:
if (state != USB_STATE_CONFIGURED || speed != USB_SPEED_SUPER)
return -EINVAL;
priv_dev->u1_allowed = !!set;
break;
case USB_DEVICE_U2_ENABLE:
if (state != USB_STATE_CONFIGURED || speed != USB_SPEED_SUPER)
return -EINVAL;
priv_dev->u2_allowed = !!set;
break;
case USB_DEVICE_LTM_ENABLE:
ret = -EINVAL;
break;
case USB_DEVICE_TEST_MODE:
if (state != USB_STATE_CONFIGURED || speed > USB_SPEED_HIGH)
return -EINVAL;
tmode = le16_to_cpu(ctrl->wIndex);
if (!set || (tmode & 0xff) != 0)
return -EINVAL;
switch (tmode >> 8) {
case TEST_J:
case TEST_K:
case TEST_SE0_NAK:
case TEST_PACKET:
cdns3_ep0_complete_setup(priv_dev, 0, 1);
/**
* Little delay to give the controller some time
* for sending status stage.
* This time should be less then 3ms.
*/
usleep_range(1000, 2000);
cdns3_set_register_bit(&priv_dev->regs->usb_cmd,
USB_CMD_STMODE |
USB_STS_TMODE_SEL(tmode - 1));
break;
default:
ret = -EINVAL;
}
break;
default:
ret = -EINVAL;
}
return ret;
}
static int cdns3_ep0_feature_handle_intf(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl,
int set)
{
u32 wValue;
int ret = 0;
wValue = le16_to_cpu(ctrl->wValue);
switch (wValue) {
case USB_INTRF_FUNC_SUSPEND:
break;
default:
ret = -EINVAL;
}
return ret;
}
static int cdns3_ep0_feature_handle_endpoint(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl,
int set)
{
struct cdns3_endpoint *priv_ep;
int ret = 0;
u8 index;
if (le16_to_cpu(ctrl->wValue) != USB_ENDPOINT_HALT)
return -EINVAL;
if (!(ctrl->wIndex & ~USB_DIR_IN))
return 0;
index = cdns3_ep_addr_to_index(ctrl->wIndex);
priv_ep = priv_dev->eps[index];
cdns3_select_ep(priv_dev, ctrl->wIndex);
if (set) {
cdns3_dbg(priv_ep->cdns3_dev, "Stall endpoint %s\n",
priv_ep->name);
writel(EP_CMD_SSTALL, &priv_dev->regs->ep_cmd);
priv_ep->flags |= EP_STALL;
} else {
struct usb_request *request;
if (priv_dev->eps[index]->flags & EP_WEDGE) {
cdns3_select_ep(priv_dev, 0x00);
return 0;
}
cdns3_dbg(priv_ep->cdns3_dev, "Clear Stalled endpoint %s\n",
priv_ep->name);
writel(EP_CMD_CSTALL | EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
/* wait for EPRST cleared */
ret = cdns3_handshake(&priv_dev->regs->ep_cmd,
EP_CMD_EPRST, 0, 100);
if (ret)
return -EINVAL;
priv_ep->flags &= ~EP_STALL;
request = cdns3_next_request(&priv_ep->pending_req_list);
if (request) {
cdns3_dbg(priv_ep->cdns3_dev, "Resume transfer for %s\n",
priv_ep->name);
cdns3_rearm_transfer(priv_ep, 1);
}
}
return ret;
}
/**
* cdns3_req_ep0_handle_feature -
* Handling of GET/SET_FEATURE standard USB request
*
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
* @set: must be set to 1 for SET_FEATURE request
*
* Returns 0 if success, error code on error
*/
static int cdns3_req_ep0_handle_feature(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl,
int set)
{
int ret = 0;
u32 recip;
recip = ctrl->bRequestType & USB_RECIP_MASK;
switch (recip) {
case USB_RECIP_DEVICE:
ret = cdns3_ep0_feature_handle_device(priv_dev, ctrl, set);
break;
case USB_RECIP_INTERFACE:
ret = cdns3_ep0_feature_handle_intf(priv_dev, ctrl, set);
break;
case USB_RECIP_ENDPOINT:
ret = cdns3_ep0_feature_handle_endpoint(priv_dev, ctrl, set);
break;
default:
return -EINVAL;
}
return ret;
}
/**
* cdns3_req_ep0_set_sel - Handling of SET_SEL standard USB request
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, error code on error
*/
static int cdns3_req_ep0_set_sel(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
if (priv_dev->gadget.state < USB_STATE_ADDRESS)
return -EINVAL;
if (ctrl_req->wLength != 6) {
dev_err(priv_dev->dev, "Set SEL should be 6 bytes, got %d\n",
ctrl_req->wLength);
return -EINVAL;
}
cdns3_ep0_run_transfer(priv_dev, priv_dev->setup_dma, 6, 1);
return 0;
}
/**
* cdns3_req_ep0_set_isoch_delay -
* Handling of GET_ISOCH_DELAY standard USB request
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, error code on error
*/
static int cdns3_req_ep0_set_isoch_delay(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
if (ctrl_req->wIndex || ctrl_req->wLength)
return -EINVAL;
priv_dev->isoch_delay = ctrl_req->wValue;
return 0;
}
/**
* cdns3_ep0_standard_request - Handling standard USB requests
* @priv_dev: extended gadget object
* @ctrl_req: pointer to received setup packet
*
* Returns 0 if success, error code on error
*/
static int cdns3_ep0_standard_request(struct cdns3_device *priv_dev,
struct usb_ctrlrequest *ctrl_req)
{
int ret;
switch (ctrl_req->bRequest) {
case USB_REQ_SET_ADDRESS:
ret = cdns3_req_ep0_set_address(priv_dev, ctrl_req);
break;
case USB_REQ_SET_CONFIGURATION:
ret = cdns3_req_ep0_set_configuration(priv_dev, ctrl_req);
break;
case USB_REQ_GET_STATUS:
ret = cdns3_req_ep0_get_status(priv_dev, ctrl_req);
break;
case USB_REQ_CLEAR_FEATURE:
ret = cdns3_req_ep0_handle_feature(priv_dev, ctrl_req, 0);
break;
case USB_REQ_SET_FEATURE:
ret = cdns3_req_ep0_handle_feature(priv_dev, ctrl_req, 1);
break;
case USB_REQ_SET_SEL:
ret = cdns3_req_ep0_set_sel(priv_dev, ctrl_req);
break;
case USB_REQ_SET_ISOCH_DELAY:
ret = cdns3_req_ep0_set_isoch_delay(priv_dev, ctrl_req);
break;
default:
ret = cdns3_ep0_delegate_req(priv_dev, ctrl_req);
break;
}
return ret;
}
static void __pending_setup_status_handler(struct cdns3_device *priv_dev)
{
struct usb_request *request = priv_dev->pending_status_request;
if (priv_dev->status_completion_no_call && request &&
request->complete) {
request->complete(&priv_dev->eps[0]->endpoint, request);
priv_dev->status_completion_no_call = 0;
}
}
void cdns3_pending_setup_status_handler(struct work_struct *work)
{
struct cdns3_device *priv_dev = container_of(work, struct cdns3_device,
pending_status_wq);
unsigned long flags;
spin_lock_irqsave(&priv_dev->lock, flags);
__pending_setup_status_handler(priv_dev);
spin_unlock_irqrestore(&priv_dev->lock, flags);
}
/**
* cdns3_gadget_ep_giveback - call struct usb_request's ->complete callback
* @priv_ep: The endpoint to whom the request belongs to
* @priv_req: The request we're giving back
* @status: completion code for the request
*
* Must be called with controller's lock held and interrupts disabled. This
* function will unmap @req and call its ->complete() callback to notify upper
* layers that it has completed.
*/
void cdns3_gadget_ep0_giveback(struct cdns3_device *priv_dev,
int status)
{
struct cdns3_endpoint *priv_ep;
struct usb_request *request;
priv_ep = priv_dev->eps[0];
request = cdns3_next_request(&priv_ep->pending_req_list);
priv_ep->dir = priv_dev->ep0_data_dir;
cdns3_gadget_giveback(priv_ep, to_cdns3_request(request), status);
}
/**
* cdns3_ep0_setup_phase - Handling setup USB requests
* @priv_dev: extended gadget object
*/
static void cdns3_ep0_setup_phase(struct cdns3_device *priv_dev)
{
struct usb_ctrlrequest *ctrl = priv_dev->setup_buf;
struct cdns3_endpoint *priv_ep = priv_dev->eps[0];
int result;
priv_dev->ep0_data_dir = ctrl->bRequestType & USB_DIR_IN;
trace_cdns3_ctrl_req(ctrl);
if (!list_empty(&priv_ep->pending_req_list)) {
struct usb_request *request;
request = cdns3_next_request(&priv_ep->pending_req_list);
priv_ep->dir = priv_dev->ep0_data_dir;
cdns3_gadget_giveback(priv_ep, to_cdns3_request(request),
-ECONNRESET);
}
if (le16_to_cpu(ctrl->wLength))
priv_dev->ep0_stage = CDNS3_DATA_STAGE;
else
priv_dev->ep0_stage = CDNS3_STATUS_STAGE;
if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
result = cdns3_ep0_standard_request(priv_dev, ctrl);
else
result = cdns3_ep0_delegate_req(priv_dev, ctrl);
if (result == USB_GADGET_DELAYED_STATUS)
return;
if (result < 0)
cdns3_ep0_complete_setup(priv_dev, 1, 1);
else if (priv_dev->ep0_stage == CDNS3_STATUS_STAGE)
cdns3_ep0_complete_setup(priv_dev, 0, 1);
}
static void cdns3_transfer_completed(struct cdns3_device *priv_dev)
{
struct cdns3_endpoint *priv_ep = priv_dev->eps[0];
if (!list_empty(&priv_ep->pending_req_list)) {
struct usb_request *request;
trace_cdns3_complete_trb(priv_ep, priv_ep->trb_pool);
request = cdns3_next_request(&priv_ep->pending_req_list);
request->actual =
TRB_LEN(le32_to_cpu(priv_ep->trb_pool->length));
priv_ep->dir = priv_dev->ep0_data_dir;
if (request->zero && request->length && priv_ep->dir
&& (request->length % priv_dev->gadget.ep0->maxpacket == 0))
cdns3_ep0_run_transfer(priv_dev, request->dma, 0, 1);
cdns3_gadget_giveback(priv_ep, to_cdns3_request(request), 0);
}
cdns3_ep0_complete_setup(priv_dev, 0, 0);
}
/**
* cdns3_check_new_setup - Check if controller receive new SETUP packet.
* @priv_dev: extended gadget object
*
* The SETUP packet can be kept in on-chip memory or in system memory.
*/
static bool cdns3_check_new_setup(struct cdns3_device *priv_dev)
{
u32 ep_sts_reg;
cdns3_select_ep(priv_dev, 0 | USB_DIR_OUT);
ep_sts_reg = readl(&priv_dev->regs->ep_sts);
return !!(ep_sts_reg & (EP_STS_SETUP | EP_STS_STPWAIT));
}
/**
* cdns3_check_ep0_interrupt_proceed - Processes interrupt related to endpoint 0
* @priv_dev: extended gadget object
* @dir: USB_DIR_IN for IN direction, USB_DIR_OUT for OUT direction
*/
void cdns3_check_ep0_interrupt_proceed(struct cdns3_device *priv_dev, int dir)
{
u32 ep_sts_reg;
cdns3_select_ep(priv_dev, dir);
ep_sts_reg = readl(&priv_dev->regs->ep_sts);
writel(ep_sts_reg, &priv_dev->regs->ep_sts);
trace_cdns3_ep0_irq(priv_dev, ep_sts_reg);
__pending_setup_status_handler(priv_dev);
if ((ep_sts_reg & EP_STS_SETUP)) {
cdns3_ep0_setup_phase(priv_dev);
} else if ((ep_sts_reg & EP_STS_IOC) || (ep_sts_reg & EP_STS_ISP)) {
priv_dev->ep0_data_dir = dir;
cdns3_transfer_completed(priv_dev);
}
if (ep_sts_reg & EP_STS_DESCMIS) {
if (dir == 0 && !priv_dev->setup_pending)
cdns3_prepare_setup_packet(priv_dev);
}
}
/**
* cdns3_gadget_ep0_enable
* Function shouldn't be called by gadget driver,
* endpoint 0 is allways active
*/
static int cdns3_gadget_ep0_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
return -EINVAL;
}
/**
* cdns3_gadget_ep0_disable
* Function shouldn't be called by gadget driver,
* endpoint 0 is allways active
*/
static int cdns3_gadget_ep0_disable(struct usb_ep *ep)
{
return -EINVAL;
}
/**
* cdns3_gadget_ep0_set_halt
* @ep: pointer to endpoint zero object
* @value: 1 for set stall, 0 for clear stall
*
* Returns 0
*/
static int cdns3_gadget_ep0_set_halt(struct usb_ep *ep, int value)
{
/* TODO */
return 0;
}
/**
* cdns3_gadget_ep0_queue Transfer data on endpoint zero
* @ep: pointer to endpoint zero object
* @request: pointer to request object
* @gfp_flags: gfp flags
*
* Returns 0 on success, error code elsewhere
*/
static int cdns3_gadget_ep0_queue(struct usb_ep *ep,
struct usb_request *request,
gfp_t gfp_flags)
{
struct cdns3_endpoint *priv_ep = ep_to_cdns3_ep(ep);
struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
unsigned long flags;
int erdy_sent = 0;
int ret = 0;
cdns3_dbg(priv_ep->cdns3_dev, "Queue to Ep0%s L: %d\n",
priv_dev->ep0_data_dir ? "IN" : "OUT",
request->length);
/* cancel the request if controller receive new SETUP packet. */
if (cdns3_check_new_setup(priv_dev))
return -ECONNRESET;
/* send STATUS stage. Should be called only for SET_CONFIGURATION */
if (priv_dev->ep0_stage == CDNS3_STATUS_STAGE) {
spin_lock_irqsave(&priv_dev->lock, flags);
cdns3_select_ep(priv_dev, 0x00);
erdy_sent = !priv_dev->hw_configured_flag;
cdns3_set_hw_configuration(priv_dev);
if (!erdy_sent)
cdns3_ep0_complete_setup(priv_dev, 0, 1);
request->actual = 0;
priv_dev->status_completion_no_call = true;
priv_dev->pending_status_request = request;
spin_unlock_irqrestore(&priv_dev->lock, flags);
/*
* Since there is no completion interrupt for status stage,
* it needs to call ->completion in software after
* ep0_queue is back.
*/
queue_work(system_freezable_wq, &priv_dev->pending_status_wq);
return 0;
}
spin_lock_irqsave(&priv_dev->lock, flags);
if (!list_empty(&priv_ep->pending_req_list)) {
dev_err(priv_dev->dev,
"can't handle multiple requests for ep0\n");
spin_unlock_irqrestore(&priv_dev->lock, flags);
return -EBUSY;
}
ret = usb_gadget_map_request_by_dev(priv_dev->sysdev, request,
priv_dev->ep0_data_dir);
if (ret) {
spin_unlock_irqrestore(&priv_dev->lock, flags);
dev_err(priv_dev->dev, "failed to map request\n");
return -EINVAL;
}
request->status = -EINPROGRESS;
list_add_tail(&request->list, &priv_ep->pending_req_list);
cdns3_ep0_run_transfer(priv_dev, request->dma, request->length, 1);
spin_unlock_irqrestore(&priv_dev->lock, flags);
return ret;
}
/**
* cdns3_gadget_ep_set_wedge Set wedge on selected endpoint
* @ep: endpoint object
*
* Returns 0
*/
int cdns3_gadget_ep_set_wedge(struct usb_ep *ep)
{
struct cdns3_endpoint *priv_ep = ep_to_cdns3_ep(ep);
struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
dev_dbg(priv_dev->dev, "Wedge for %s\n", ep->name);
cdns3_gadget_ep_set_halt(ep, 1);
priv_ep->flags |= EP_WEDGE;
return 0;
}
const struct usb_ep_ops cdns3_gadget_ep0_ops = {
.enable = cdns3_gadget_ep0_enable,
.disable = cdns3_gadget_ep0_disable,
.alloc_request = cdns3_gadget_ep_alloc_request,
.free_request = cdns3_gadget_ep_free_request,
.queue = cdns3_gadget_ep0_queue,
.dequeue = cdns3_gadget_ep_dequeue,
.set_halt = cdns3_gadget_ep0_set_halt,
.set_wedge = cdns3_gadget_ep_set_wedge,
};
/**
* cdns3_ep0_config - Configures default endpoint
* @priv_dev: extended gadget object
*
* Functions sets parameters: maximal packet size and enables interrupts
*/
void cdns3_ep0_config(struct cdns3_device *priv_dev)
{
struct cdns3_usb_regs __iomem *regs;
struct cdns3_endpoint *priv_ep;
u32 max_packet_size = 64;
regs = priv_dev->regs;
if (priv_dev->gadget.speed == USB_SPEED_SUPER)
max_packet_size = 512;
priv_ep = priv_dev->eps[0];
if (!list_empty(&priv_ep->pending_req_list)) {
struct usb_request *request;
request = cdns3_next_request(&priv_ep->pending_req_list);
list_del_init(&request->list);
}
priv_dev->u1_allowed = 0;
priv_dev->u2_allowed = 0;
priv_dev->gadget.ep0->maxpacket = max_packet_size;
cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(max_packet_size);
/* init ep out */
cdns3_select_ep(priv_dev, USB_DIR_OUT);
writel(EP_CFG_ENABLE | EP_CFG_MAXPKTSIZE(max_packet_size),
&regs->ep_cfg);
writel(EP_STS_EN_SETUPEN | EP_STS_EN_DESCMISEN | EP_STS_EN_TRBERREN,
&regs->ep_sts_en);
/* init ep in */
cdns3_select_ep(priv_dev, USB_DIR_IN);
writel(EP_CFG_ENABLE | EP_CFG_MAXPKTSIZE(max_packet_size),
&regs->ep_cfg);
writel(EP_STS_EN_SETUPEN | EP_STS_EN_TRBERREN, &regs->ep_sts_en);
cdns3_set_register_bit(&regs->usb_conf, USB_CONF_U1DS | USB_CONF_U2DS);
}
/**
* cdns3_init_ep0 Initializes software endpoint 0 of gadget
* @priv_dev: extended gadget object
* @ep_priv: extended endpoint object
*
* Returns 0 on success else error code.
*/
int cdns3_init_ep0(struct cdns3_device *priv_dev,
struct cdns3_endpoint *priv_ep)
{
sprintf(priv_ep->name, "ep0");
/* fill linux fields */
priv_ep->endpoint.ops = &cdns3_gadget_ep0_ops;
priv_ep->endpoint.maxburst = 1;
usb_ep_set_maxpacket_limit(&priv_ep->endpoint,
CDNS3_EP0_MAX_PACKET_LIMIT);
priv_ep->endpoint.address = 0;
priv_ep->endpoint.caps.type_control = 1;
priv_ep->endpoint.caps.dir_in = 1;
priv_ep->endpoint.caps.dir_out = 1;
priv_ep->endpoint.name = priv_ep->name;
priv_ep->endpoint.desc = &cdns3_gadget_ep0_desc;
priv_dev->gadget.ep0 = &priv_ep->endpoint;
priv_ep->type = USB_ENDPOINT_XFER_CONTROL;
return cdns3_allocate_trb_pool(priv_ep);
}

27
drivers/usb/cdns3/gadget-export.h
View File

@ -1,24 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* gadget-export.h - Gadget Export APIs
* Cadence USBSS DRD Driver - Gadget Export APIs.
*
* Copyright (C) 2017-2019 NXP
*
* Copyright 2017 NXP
* Authors: Peter Chen <peter.chen@nxp.com>
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#ifndef __CDNS3_GADGET_EXPORT_H
#define __CDNS3_GADGET_EXPORT_H
#ifndef __LINUX_CDNS3_GADGET_EXPORT
#define __LINUX_CDNS3_GADGET_EXPORT
#ifdef CONFIG_USB_CDNS3_GADGET
int cdns3_gadget_init(struct cdns3 *cdns);
void cdns3_gadget_remove(struct cdns3 *cdns);
void cdns3_gadget_exit(struct cdns3 *cdns);
#else
static inline int cdns3_gadget_init(struct cdns3 *cdns)
@ -26,11 +20,8 @@ static inline int cdns3_gadget_init(struct cdns3 *cdns)
return -ENXIO;
}
static inline void cdns3_gadget_remove(struct cdns3 *cdns)
{
}
static inline void cdns3_gadget_exit(struct cdns3 *cdns) { }
#endif
#endif /* __CDNS3_GADGET_EXPORT_H */
#endif /* __LINUX_CDNS3_GADGET_EXPORT */

3856
drivers/usb/cdns3/gadget.c
View File

File diff suppressed because it is too large Load Diff

1404
drivers/usb/cdns3/gadget.h
View File

File diff suppressed because it is too large Load Diff

23
drivers/usb/cdns3/trace.c 100644
View File

@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0
/*
* USBSS device controller driver Trace Support
*
* Copyright (C) 2018 Cadence.
*
* Author: Pawel Laszczak <pawell@cadence.com>
*/
#define CREATE_TRACE_POINTS
#include "trace.h"
void cdns3_dbg(struct cdns3_device *priv_dev, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
trace_cdns3_log(priv_dev, &vaf);
va_end(args);
}

446
drivers/usb/cdns3/trace.h 100644
View File

@ -0,0 +1,446 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* USBSS device controller driver.
* Trace support header file.
*
* Copyright (C) 2018 Cadence.
*
* Author: Pawel Laszczak <pawell@cadence.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cdns3
#if !defined(__LINUX_CDNS3_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __LINUX_CDNS3_TRACE
#include <linux/types.h>
#include <linux/tracepoint.h>
#include <asm/byteorder.h>
#include <linux/usb/ch9.h>
#include "gadget.h"
#include "debug.h"
#define CDNS3_MSG_MAX 500
TRACE_EVENT(cdns3_log,
TP_PROTO(struct cdns3_device *priv_dev, struct va_format *vaf),
TP_ARGS(priv_dev, vaf),
TP_STRUCT__entry(
__string(name, dev_name(priv_dev->dev))
__dynamic_array(char, msg, CDNS3_MSG_MAX)
),
TP_fast_assign(
__assign_str(name, dev_name(priv_dev->dev));
vsnprintf(__get_str(msg), CDNS3_MSG_MAX, vaf->fmt, *vaf->va);
),
TP_printk("%s: %s", __get_str(name), __get_str(msg))
);
DECLARE_EVENT_CLASS(cdns3_log_doorbell,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr),
TP_STRUCT__entry(
__string(name, ep_name)
__field(u32, ep_trbaddr)
),
TP_fast_assign(
__assign_str(name, ep_name);
__entry->ep_trbaddr = ep_trbaddr;
),
TP_printk("//Ding Dong %s, ep_trbaddr %08x", __get_str(name),
__entry->ep_trbaddr)
);
DEFINE_EVENT(cdns3_log_doorbell, cdns3_doorbell_ep0,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr)
);
DEFINE_EVENT(cdns3_log_doorbell, cdns3_doorbell_epx,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr)
);
DECLARE_EVENT_CLASS(cdns3_log_usb_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 usb_ists),
TP_ARGS(priv_dev, usb_ists),
TP_STRUCT__entry(
__field(enum usb_device_speed, speed)
__field(u32, usb_ists)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->speed = cdns3_get_speed(priv_dev);
__entry->usb_ists = usb_ists;
),
TP_printk("%s", cdns3_decode_usb_irq(__get_str(str), __entry->speed,
__entry->usb_ists))
);
DEFINE_EVENT(cdns3_log_usb_irq, cdns3_usb_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 usb_ists),
TP_ARGS(priv_dev, usb_ists)
);
DECLARE_EVENT_CLASS(cdns3_log_epx_irq,
TP_PROTO(struct cdns3_device *priv_dev, struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_dev, priv_ep),
TP_STRUCT__entry(
__string(ep_name, priv_ep->name)
__field(u32, ep_sts)
__field(u32, ep_traddr)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__assign_str(ep_name, priv_ep->name);
__entry->ep_sts = readl(&priv_dev->regs->ep_sts);
__entry->ep_traddr = readl(&priv_dev->regs->ep_traddr);
),
TP_printk("%s, ep_traddr: %08x",
cdns3_decode_epx_irq(__get_str(str),
__get_str(ep_name),
__entry->ep_sts),
__entry->ep_traddr)
);
DEFINE_EVENT(cdns3_log_epx_irq, cdns3_epx_irq,
TP_PROTO(struct cdns3_device *priv_dev, struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_dev, priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_ep0_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 ep_sts),
TP_ARGS(priv_dev, ep_sts),
TP_STRUCT__entry(
__field(int, ep_dir)
__field(u32, ep_sts)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->ep_dir = priv_dev->ep0_data_dir;
__entry->ep_sts = ep_sts;
),
TP_printk("%s", cdns3_decode_ep0_irq(__get_str(str),
__entry->ep_dir,
__entry->ep_sts))
);
DEFINE_EVENT(cdns3_log_ep0_irq, cdns3_ep0_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 ep_sts),
TP_ARGS(priv_dev, ep_sts)
);
DECLARE_EVENT_CLASS(cdns3_log_ctrl,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl),
TP_STRUCT__entry(
__field(u8, bRequestType)
__field(u8, bRequest)
__field(u16, wValue)
__field(u16, wIndex)
__field(u16, wLength)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->bRequestType = ctrl->bRequestType;
__entry->bRequest = ctrl->bRequest;
__entry->wValue = le16_to_cpu(ctrl->wValue);
__entry->wIndex = le16_to_cpu(ctrl->wIndex);
__entry->wLength = le16_to_cpu(ctrl->wLength);
),
TP_printk("%s", usb_decode_ctrl(__get_str(str), CDNS3_MSG_MAX,
__entry->bRequestType,
__entry->bRequest, __entry->wValue,
__entry->wIndex, __entry->wLength)
)
);
DEFINE_EVENT(cdns3_log_ctrl, cdns3_ctrl_req,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl)
);
DECLARE_EVENT_CLASS(cdns3_log_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__string(name, req->priv_ep->name)
__field(struct cdns3_request *, req)
__field(void *, buf)
__field(unsigned int, actual)
__field(unsigned int, length)
__field(int, status)
__field(int, zero)
__field(int, short_not_ok)
__field(int, no_interrupt)
__field(int, start_trb)
__field(int, end_trb)
__field(struct cdns3_trb *, start_trb_addr)
__field(int, flags)
),
TP_fast_assign(
__assign_str(name, req->priv_ep->name);
__entry->req = req;
__entry->buf = req->request.buf;
__entry->actual = req->request.actual;
__entry->length = req->request.length;
__entry->status = req->request.status;
__entry->zero = req->request.zero;
__entry->short_not_ok = req->request.short_not_ok;
__entry->no_interrupt = req->request.no_interrupt;
__entry->start_trb = req->start_trb;
__entry->end_trb = req->end_trb;
__entry->start_trb_addr = req->trb;
__entry->flags = req->flags;
),
TP_printk("%s: req: %p, req buff %p, length: %u/%u %s%s%s, status: %d,"
" trb: [start:%d, end:%d: virt addr %pa], flags:%x ",
__get_str(name), __entry->req, __entry->buf, __entry->actual,
__entry->length,
__entry->zero ? "zero | " : "",
__entry->short_not_ok ? "short | " : "",
__entry->no_interrupt ? "no int" : "",
__entry->status,
__entry->start_trb,
__entry->end_trb,
__entry->start_trb_addr,
__entry->flags
)
);
DEFINE_EVENT(cdns3_log_request, cdns3_alloc_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_free_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_ep_queue,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_ep_dequeue,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_gadget_giveback,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(cdns3_log_aligned_request,
TP_PROTO(struct cdns3_request *priv_req),
TP_ARGS(priv_req),
TP_STRUCT__entry(
__string(name, priv_req->priv_ep->name)
__field(struct usb_request *, req)
__field(void *, buf)
__field(dma_addr_t, dma)
__field(void *, aligned_buf)
__field(dma_addr_t, aligned_dma)
__field(u32, aligned_buf_size)
),
TP_fast_assign(
__assign_str(name, priv_req->priv_ep->name);
__entry->req = &priv_req->request;
__entry->buf = priv_req->request.buf;
__entry->dma = priv_req->request.dma;
__entry->aligned_buf = priv_req->aligned_buf->buf;
__entry->aligned_dma = priv_req->aligned_buf->dma;
__entry->aligned_buf_size = priv_req->aligned_buf->size;
),
TP_printk("%s: req: %p, req buf %p, dma %08llx a_buf %p a_dma %08llx, size %d",
__get_str(name), __entry->req, __entry->buf, __entry->dma,
__entry->aligned_buf, __entry->aligned_dma,
__entry->aligned_buf_size
)
);
DEFINE_EVENT(cdns3_log_aligned_request, cdns3_free_aligned_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_aligned_request, cdns3_prepare_aligned_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(cdns3_log_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb),
TP_STRUCT__entry(
__string(name, priv_ep->name)
__field(struct cdns3_trb *, trb)
__field(u32, buffer)
__field(u32, length)
__field(u32, control)
__field(u32, type)
),
TP_fast_assign(
__assign_str(name, priv_ep->name);
__entry->trb = trb;
__entry->buffer = trb->buffer;
__entry->length = trb->length;
__entry->control = trb->control;
__entry->type = usb_endpoint_type(priv_ep->endpoint.desc);
),
TP_printk("%s: trb %p, dma buf: 0x%08x, size: %ld, burst: %d ctrl: 0x%08x (%s%s%s%s%s%s%s)",
__get_str(name), __entry->trb, __entry->buffer,
TRB_LEN(__entry->length),
(u8)TRB_BURST_LEN_GET(__entry->length),
__entry->control,
__entry->control & TRB_CYCLE ? "C=1, " : "C=0, ",
__entry->control & TRB_TOGGLE ? "T=1, " : "T=0, ",
__entry->control & TRB_ISP ? "ISP, " : "",
__entry->control & TRB_FIFO_MODE ? "FIFO, " : "",
__entry->control & TRB_CHAIN ? "CHAIN, " : "",
__entry->control & TRB_IOC ? "IOC, " : "",
TRB_FIELD_TO_TYPE(__entry->control) == TRB_NORMAL ? "Normal" : "LINK"
)
);
DEFINE_EVENT(cdns3_log_trb, cdns3_prepare_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb)
);
DEFINE_EVENT(cdns3_log_trb, cdns3_complete_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb)
);
DECLARE_EVENT_CLASS(cdns3_log_ring,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep),
TP_STRUCT__entry(
__dynamic_array(u8, ring, TRB_RING_SIZE)
__dynamic_array(u8, priv_ep, sizeof(struct cdns3_endpoint))
__dynamic_array(char, buffer,
(TRBS_PER_SEGMENT * 65) + CDNS3_MSG_MAX)
),
TP_fast_assign(
memcpy(__get_dynamic_array(priv_ep), priv_ep,
sizeof(struct cdns3_endpoint));
memcpy(__get_dynamic_array(ring), priv_ep->trb_pool,
TRB_RING_SIZE);
),
TP_printk("%s",
cdns3_dbg_ring((struct cdns3_endpoint *)__get_str(priv_ep),
(struct cdns3_trb *)__get_str(ring),
__get_str(buffer)))
);
DEFINE_EVENT(cdns3_log_ring, cdns3_ring,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_ep,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep),
TP_STRUCT__entry(
__string(name, priv_ep->name)
__field(unsigned int, maxpacket)
__field(unsigned int, maxpacket_limit)
__field(unsigned int, max_streams)
__field(unsigned int, maxburst)
__field(unsigned int, flags)
__field(unsigned int, dir)
__field(u8, enqueue)
__field(u8, dequeue)
),
TP_fast_assign(
__assign_str(name, priv_ep->name);
__entry->maxpacket = priv_ep->endpoint.maxpacket;
__entry->maxpacket_limit = priv_ep->endpoint.maxpacket_limit;
__entry->max_streams = priv_ep->endpoint.max_streams;
__entry->maxburst = priv_ep->endpoint.maxburst;
__entry->flags = priv_ep->flags;
__entry->dir = priv_ep->dir;
__entry->enqueue = priv_ep->enqueue;
__entry->dequeue = priv_ep->dequeue;
),
TP_printk("%s: mps: %d/%d. streams: %d, burst: %d, enq idx: %d, "
"deq idx: %d, flags %s%s%s%s%s%s%s%s, dir: %s",
__get_str(name), __entry->maxpacket,
__entry->maxpacket_limit, __entry->max_streams,
__entry->maxburst, __entry->enqueue,
__entry->dequeue,
__entry->flags & EP_ENABLED ? "EN | " : "",
__entry->flags & EP_STALL ? "STALL | " : "",
__entry->flags & EP_WEDGE ? "WEDGE | " : "",
__entry->flags & EP_TRANSFER_STARTED ? "STARTED | " : "",
__entry->flags & EP_UPDATE_EP_TRBADDR ? "UPD TRB | " : "",
__entry->flags & EP_PENDING_REQUEST ? "REQ PEN | " : "",
__entry->flags & EP_RING_FULL ? "RING FULL |" : "",
__entry->flags & EP_CLAIMED ? "CLAIMED " : "",
__entry->dir ? "IN" : "OUT"
)
);
DEFINE_EVENT(cdns3_log_ep, cdns3_gadget_ep_enable,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DEFINE_EVENT(cdns3_log_ep, cdns3_gadget_ep_disable,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_request_handled,
TP_PROTO(struct cdns3_request *priv_req, int current_index,
int handled),
TP_ARGS(priv_req, current_index, handled),
TP_STRUCT__entry(
__field(struct cdns3_request *, priv_req)
__field(unsigned int, dma_position)
__field(unsigned int, handled)
__field(unsigned int, dequeue_idx)
__field(unsigned int, enqueue_idx)
__field(unsigned int, start_trb)
__field(unsigned int, end_trb)
),
TP_fast_assign(
__entry->priv_req = priv_req;
__entry->dma_position = current_index;
__entry->handled = handled;
__entry->dequeue_idx = priv_req->priv_ep->dequeue;
__entry->enqueue_idx = priv_req->priv_ep->enqueue;
__entry->start_trb = priv_req->start_trb;
__entry->end_trb = priv_req->end_trb;
),
TP_printk("Req: %p %s, DMA pos: %d, ep deq: %d, ep enq: %d,"
" start trb: %d, end trb: %d",
__entry->priv_req,
__entry->handled ? "handled" : "not handled",
__entry->dma_position, __entry->dequeue_idx,
__entry->enqueue_idx, __entry->start_trb,
__entry->end_trb
)
);
DEFINE_EVENT(cdns3_log_request_handled, cdns3_request_handled,
TP_PROTO(struct cdns3_request *priv_req, int current_index,
int handled),
TP_ARGS(priv_req, current_index, handled)
);
#endif /* __LINUX_CDNS3_TRACE */
/* this part must be outside header guard */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>