![Jörn Engel](/assets/img/avatar_default.png)
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
1753 lines
49 KiB
C
1753 lines
49 KiB
C
/*
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* hfc_usb.c
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*
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* $Id: hfc_usb.c,v 2.3.2.13 2006/02/17 17:17:22 mbachem Exp $
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*
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* modular HiSax ISDN driver for Colognechip HFC-S USB chip
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*
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* Authors : Peter Sprenger (sprenger@moving-bytes.de)
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* Martin Bachem (info@colognechip.com)
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*
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* based on the first hfc_usb driver of
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* Werner Cornelius (werner@isdn-development.de)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* See Version Histroy at the bottom of this file
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*
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*/
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#include <linux/types.h>
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#include <linux/stddef.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel_stat.h>
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#include <linux/usb.h>
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#include <linux/kernel.h>
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#include <linux/smp_lock.h>
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#include <linux/sched.h>
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#include "hisax.h"
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#include "hisax_if.h"
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#include "hfc_usb.h"
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static const char *hfcusb_revision =
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"$Revision: 2.3.2.13 $ $Date: 2006/02/17 17:17:22 $ ";
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/* Hisax debug support
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* use "modprobe debug=x" where x is bitfield of USB_DBG & ISDN_DBG
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*/
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#ifdef CONFIG_HISAX_DEBUG
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#include <linux/moduleparam.h>
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#define __debug_variable hfc_debug
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#include "hisax_debug.h"
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static u_int debug;
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module_param(debug, uint, 0);
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static int hfc_debug;
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#endif
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/* private vendor specific data */
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typedef struct {
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__u8 led_scheme; // led display scheme
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signed short led_bits[8]; // array of 8 possible LED bitmask settings
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char *vend_name; // device name
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} hfcsusb_vdata;
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/****************************************/
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/* data defining the devices to be used */
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/****************************************/
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static struct usb_device_id hfcusb_idtab[] = {
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{
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USB_DEVICE(0x0959, 0x2bd0),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_OFF, {4, 0, 2, 1},
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"ISDN USB TA (Cologne Chip HFC-S USB based)"}),
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},
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{
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USB_DEVICE(0x0675, 0x1688),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {1, 2, 0, 0},
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"DrayTek miniVigor 128 USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x07b0, 0x0007),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Billion tiny USB ISDN TA 128"}),
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},
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{
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USB_DEVICE(0x0742, 0x2008),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"Stollmann USB TA"}),
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},
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{
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USB_DEVICE(0x0742, 0x2009),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"Aceex USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x0742, 0x200A),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"OEM USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x08e3, 0x0301),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {2, 0, 1, 4},
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"Olitec USB RNIS"}),
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},
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{
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USB_DEVICE(0x07fa, 0x0846),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Bewan Modem RNIS USB"}),
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},
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{
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USB_DEVICE(0x07fa, 0x0847),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Djinn Numeris USB"}),
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},
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{
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USB_DEVICE(0x07b0, 0x0006),
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.driver_info = (unsigned long) &((hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Twister ISDN TA"}),
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},
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{ }
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};
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/***************************************************************/
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/* structure defining input+output fifos (interrupt/bulk mode) */
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/***************************************************************/
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struct usb_fifo; /* forward definition */
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typedef struct iso_urb_struct {
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struct urb *purb;
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__u8 buffer[ISO_BUFFER_SIZE]; /* buffer incoming/outgoing data */
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struct usb_fifo *owner_fifo; /* pointer to owner fifo */
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} iso_urb_struct;
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struct hfcusb_data; /* forward definition */
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typedef struct usb_fifo {
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int fifonum; /* fifo index attached to this structure */
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int active; /* fifo is currently active */
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struct hfcusb_data *hfc; /* pointer to main structure */
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int pipe; /* address of endpoint */
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__u8 usb_packet_maxlen; /* maximum length for usb transfer */
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unsigned int max_size; /* maximum size of receive/send packet */
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__u8 intervall; /* interrupt interval */
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struct sk_buff *skbuff; /* actual used buffer */
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struct urb *urb; /* transfer structure for usb routines */
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__u8 buffer[128]; /* buffer incoming/outgoing data */
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int bit_line; /* how much bits are in the fifo? */
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volatile __u8 usb_transfer_mode; /* switched between ISO and INT */
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iso_urb_struct iso[2]; /* need two urbs to have one always for pending */
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struct hisax_if *hif; /* hisax interface */
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int delete_flg; /* only delete skbuff once */
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int last_urblen; /* remember length of last packet */
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} usb_fifo;
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/*********************************************/
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/* structure holding all data for one device */
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/*********************************************/
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typedef struct hfcusb_data {
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/* HiSax Interface for loadable Layer1 drivers */
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struct hisax_d_if d_if; /* see hisax_if.h */
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struct hisax_b_if b_if[2]; /* see hisax_if.h */
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int protocol;
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struct usb_device *dev; /* our device */
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int if_used; /* used interface number */
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int alt_used; /* used alternate config */
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int ctrl_paksize; /* control pipe packet size */
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int ctrl_in_pipe, ctrl_out_pipe; /* handles for control pipe */
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int cfg_used; /* configuration index used */
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int vend_idx; /* vendor found */
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int b_mode[2]; /* B-channel mode */
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int l1_activated; /* layer 1 activated */
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int disc_flag; /* TRUE if device was disonnected to avoid some USB actions */
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int packet_size, iso_packet_size;
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/* control pipe background handling */
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ctrl_buft ctrl_buff[HFC_CTRL_BUFSIZE]; /* buffer holding queued data */
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volatile int ctrl_in_idx, ctrl_out_idx, ctrl_cnt; /* input/output pointer + count */
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struct urb *ctrl_urb; /* transfer structure for control channel */
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struct usb_ctrlrequest ctrl_write; /* buffer for control write request */
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struct usb_ctrlrequest ctrl_read; /* same for read request */
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__u8 old_led_state, led_state, led_new_data, led_b_active;
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volatile __u8 threshold_mask; /* threshold actually reported */
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volatile __u8 bch_enables; /* or mask for sctrl_r and sctrl register values */
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usb_fifo fifos[HFCUSB_NUM_FIFOS]; /* structure holding all fifo data */
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volatile __u8 l1_state; /* actual l1 state */
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struct timer_list t3_timer; /* timer 3 for activation/deactivation */
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struct timer_list t4_timer; /* timer 4 for activation/deactivation */
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} hfcusb_data;
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static void collect_rx_frame(usb_fifo * fifo, __u8 * data, int len,
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int finish);
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static inline const char *
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symbolic(struct hfcusb_symbolic_list list[], const int num)
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{
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int i;
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for (i = 0; list[i].name != NULL; i++)
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if (list[i].num == num)
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return (list[i].name);
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return "<unknown ERROR>";
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}
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/******************************************************/
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/* start next background transfer for control channel */
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/******************************************************/
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static void
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ctrl_start_transfer(hfcusb_data * hfc)
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{
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if (hfc->ctrl_cnt) {
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hfc->ctrl_urb->pipe = hfc->ctrl_out_pipe;
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hfc->ctrl_urb->setup_packet = (u_char *) & hfc->ctrl_write;
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hfc->ctrl_urb->transfer_buffer = NULL;
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hfc->ctrl_urb->transfer_buffer_length = 0;
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hfc->ctrl_write.wIndex =
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cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg);
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hfc->ctrl_write.wValue =
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cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].reg_val);
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usb_submit_urb(hfc->ctrl_urb, GFP_ATOMIC); /* start transfer */
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}
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} /* ctrl_start_transfer */
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/************************************/
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/* queue a control transfer request */
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/* return 0 on success. */
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/************************************/
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static int
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queue_control_request(hfcusb_data * hfc, __u8 reg, __u8 val, int action)
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{
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ctrl_buft *buf;
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if (hfc->ctrl_cnt >= HFC_CTRL_BUFSIZE)
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return (1); /* no space left */
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buf = &hfc->ctrl_buff[hfc->ctrl_in_idx]; /* pointer to new index */
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buf->hfc_reg = reg;
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buf->reg_val = val;
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buf->action = action;
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if (++hfc->ctrl_in_idx >= HFC_CTRL_BUFSIZE)
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hfc->ctrl_in_idx = 0; /* pointer wrap */
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if (++hfc->ctrl_cnt == 1)
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ctrl_start_transfer(hfc);
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return (0);
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} /* queue_control_request */
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static int
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control_action_handler(hfcusb_data * hfc, int reg, int val, int action)
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{
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if (!action)
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return (1); /* no action defined */
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return (0);
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}
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/***************************************************************/
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/* control completion routine handling background control cmds */
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/***************************************************************/
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static void
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ctrl_complete(struct urb *urb, struct pt_regs *regs)
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{
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hfcusb_data *hfc = (hfcusb_data *) urb->context;
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ctrl_buft *buf;
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urb->dev = hfc->dev;
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if (hfc->ctrl_cnt) {
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buf = &hfc->ctrl_buff[hfc->ctrl_out_idx];
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control_action_handler(hfc, buf->hfc_reg, buf->reg_val,
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buf->action);
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hfc->ctrl_cnt--; /* decrement actual count */
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if (++hfc->ctrl_out_idx >= HFC_CTRL_BUFSIZE)
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hfc->ctrl_out_idx = 0; /* pointer wrap */
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ctrl_start_transfer(hfc); /* start next transfer */
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}
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} /* ctrl_complete */
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/***************************************************/
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/* write led data to auxport & invert if necessary */
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/***************************************************/
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static void
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write_led(hfcusb_data * hfc, __u8 led_state)
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{
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if (led_state != hfc->old_led_state) {
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hfc->old_led_state = led_state;
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queue_control_request(hfc, HFCUSB_P_DATA, led_state, 1);
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}
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}
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/**************************/
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/* handle LED bits */
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/**************************/
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static void
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set_led_bit(hfcusb_data * hfc, signed short led_bits, int unset)
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{
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if (unset) {
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if (led_bits < 0)
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hfc->led_state |= abs(led_bits);
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else
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hfc->led_state &= ~led_bits;
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} else {
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if (led_bits < 0)
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hfc->led_state &= ~abs(led_bits);
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else
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hfc->led_state |= led_bits;
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}
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}
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/**************************/
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/* handle LED requests */
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/**************************/
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static void
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handle_led(hfcusb_data * hfc, int event)
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{
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hfcsusb_vdata *driver_info =
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(hfcsusb_vdata *) hfcusb_idtab[hfc->vend_idx].driver_info;
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/* if no scheme -> no LED action */
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if (driver_info->led_scheme == LED_OFF)
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return;
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switch (event) {
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case LED_POWER_ON:
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set_led_bit(hfc, driver_info->led_bits[0],
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0);
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set_led_bit(hfc, driver_info->led_bits[1],
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1);
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set_led_bit(hfc, driver_info->led_bits[2],
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1);
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set_led_bit(hfc, driver_info->led_bits[3],
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1);
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break;
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case LED_POWER_OFF: /* no Power off handling */
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break;
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case LED_S0_ON:
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set_led_bit(hfc, driver_info->led_bits[1],
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0);
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break;
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case LED_S0_OFF:
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set_led_bit(hfc, driver_info->led_bits[1],
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1);
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break;
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case LED_B1_ON:
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set_led_bit(hfc, driver_info->led_bits[2],
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0);
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break;
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case LED_B1_OFF:
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set_led_bit(hfc, driver_info->led_bits[2],
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1);
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break;
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case LED_B2_ON:
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set_led_bit(hfc, driver_info->led_bits[3],
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0);
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break;
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case LED_B2_OFF:
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set_led_bit(hfc, driver_info->led_bits[3],
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1);
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break;
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}
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write_led(hfc, hfc->led_state);
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}
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/********************************/
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/* called when timer t3 expires */
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/********************************/
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static void
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l1_timer_expire_t3(hfcusb_data * hfc)
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{
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hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
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NULL);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG,
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"HFC-S USB: PH_DEACTIVATE | INDICATION sent (T3 expire)");
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#endif
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hfc->l1_activated = FALSE;
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handle_led(hfc, LED_S0_OFF);
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/* deactivate : */
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queue_control_request(hfc, HFCUSB_STATES, 0x10, 1);
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queue_control_request(hfc, HFCUSB_STATES, 3, 1);
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}
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/********************************/
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/* called when timer t4 expires */
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/********************************/
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static void
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l1_timer_expire_t4(hfcusb_data * hfc)
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{
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hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
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NULL);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG,
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"HFC-S USB: PH_DEACTIVATE | INDICATION sent (T4 expire)");
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#endif
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hfc->l1_activated = FALSE;
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handle_led(hfc, LED_S0_OFF);
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}
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/*****************************/
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/* handle S0 state changes */
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/*****************************/
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static void
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state_handler(hfcusb_data * hfc, __u8 state)
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{
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__u8 old_state;
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old_state = hfc->l1_state;
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if (state == old_state || state < 1 || state > 8)
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return;
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG, "HFC-S USB: new S0 state:%d old_state:%d", state,
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old_state);
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#endif
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if (state < 4 || state == 7 || state == 8) {
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if (timer_pending(&hfc->t3_timer))
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del_timer(&hfc->t3_timer);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG, "HFC-S USB: T3 deactivated");
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#endif
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}
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if (state >= 7) {
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if (timer_pending(&hfc->t4_timer))
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del_timer(&hfc->t4_timer);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG, "HFC-S USB: T4 deactivated");
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#endif
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}
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if (state == 7 && !hfc->l1_activated) {
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hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
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PH_ACTIVATE | INDICATION, NULL);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG, "HFC-S USB: PH_ACTIVATE | INDICATION sent");
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#endif
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hfc->l1_activated = TRUE;
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handle_led(hfc, LED_S0_ON);
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} else if (state <= 3 /* && activated */ ) {
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if (old_state == 7 || old_state == 8) {
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG, "HFC-S USB: T4 activated");
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#endif
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if (!timer_pending(&hfc->t4_timer)) {
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hfc->t4_timer.expires =
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jiffies + (HFC_TIMER_T4 * HZ) / 1000;
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add_timer(&hfc->t4_timer);
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}
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} else {
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hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
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PH_DEACTIVATE | INDICATION,
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NULL);
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#ifdef CONFIG_HISAX_DEBUG
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DBG(ISDN_DBG,
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"HFC-S USB: PH_DEACTIVATE | INDICATION sent");
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#endif
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hfc->l1_activated = FALSE;
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|
handle_led(hfc, LED_S0_OFF);
|
|
}
|
|
}
|
|
hfc->l1_state = state;
|
|
}
|
|
|
|
/* prepare iso urb */
|
|
static void
|
|
fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe,
|
|
void *buf, int num_packets, int packet_size, int interval,
|
|
usb_complete_t complete, void *context)
|
|
{
|
|
int k;
|
|
|
|
spin_lock_init(&urb->lock);
|
|
urb->dev = dev;
|
|
urb->pipe = pipe;
|
|
urb->complete = complete;
|
|
urb->number_of_packets = num_packets;
|
|
urb->transfer_buffer_length = packet_size * num_packets;
|
|
urb->context = context;
|
|
urb->transfer_buffer = buf;
|
|
urb->transfer_flags = URB_ISO_ASAP;
|
|
urb->actual_length = 0;
|
|
urb->interval = interval;
|
|
for (k = 0; k < num_packets; k++) {
|
|
urb->iso_frame_desc[k].offset = packet_size * k;
|
|
urb->iso_frame_desc[k].length = packet_size;
|
|
urb->iso_frame_desc[k].actual_length = 0;
|
|
}
|
|
}
|
|
|
|
/* allocs urbs and start isoc transfer with two pending urbs to avoid
|
|
gaps in the transfer chain */
|
|
static int
|
|
start_isoc_chain(usb_fifo * fifo, int num_packets_per_urb,
|
|
usb_complete_t complete, int packet_size)
|
|
{
|
|
int i, k, errcode;
|
|
|
|
printk(KERN_INFO "HFC-S USB: starting ISO-chain for Fifo %i\n",
|
|
fifo->fifonum);
|
|
|
|
/* allocate Memory for Iso out Urbs */
|
|
for (i = 0; i < 2; i++) {
|
|
if (!(fifo->iso[i].purb)) {
|
|
fifo->iso[i].purb =
|
|
usb_alloc_urb(num_packets_per_urb, GFP_KERNEL);
|
|
if (!(fifo->iso[i].purb)) {
|
|
printk(KERN_INFO
|
|
"alloc urb for fifo %i failed!!!",
|
|
fifo->fifonum);
|
|
}
|
|
fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
|
|
|
|
/* Init the first iso */
|
|
if (ISO_BUFFER_SIZE >=
|
|
(fifo->usb_packet_maxlen *
|
|
num_packets_per_urb)) {
|
|
fill_isoc_urb(fifo->iso[i].purb,
|
|
fifo->hfc->dev, fifo->pipe,
|
|
fifo->iso[i].buffer,
|
|
num_packets_per_urb,
|
|
fifo->usb_packet_maxlen,
|
|
fifo->intervall, complete,
|
|
&fifo->iso[i]);
|
|
memset(fifo->iso[i].buffer, 0,
|
|
sizeof(fifo->iso[i].buffer));
|
|
/* defining packet delimeters in fifo->buffer */
|
|
for (k = 0; k < num_packets_per_urb; k++) {
|
|
fifo->iso[i].purb->
|
|
iso_frame_desc[k].offset =
|
|
k * packet_size;
|
|
fifo->iso[i].purb->
|
|
iso_frame_desc[k].length =
|
|
packet_size;
|
|
}
|
|
} else {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: ISO Buffer size to small!\n");
|
|
}
|
|
}
|
|
fifo->bit_line = BITLINE_INF;
|
|
|
|
errcode = usb_submit_urb(fifo->iso[i].purb, GFP_KERNEL);
|
|
fifo->active = (errcode >= 0) ? 1 : 0;
|
|
if (errcode < 0) {
|
|
printk(KERN_INFO "HFC-S USB: %s URB nr:%d\n",
|
|
symbolic(urb_errlist, errcode), i);
|
|
};
|
|
}
|
|
return (fifo->active);
|
|
}
|
|
|
|
/* stops running iso chain and frees their pending urbs */
|
|
static void
|
|
stop_isoc_chain(usb_fifo * fifo)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
if (fifo->iso[i].purb) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: Stopping iso chain for fifo %i.%i",
|
|
fifo->fifonum, i);
|
|
#endif
|
|
usb_unlink_urb(fifo->iso[i].purb);
|
|
usb_free_urb(fifo->iso[i].purb);
|
|
fifo->iso[i].purb = NULL;
|
|
}
|
|
}
|
|
if (fifo->urb) {
|
|
usb_unlink_urb(fifo->urb);
|
|
usb_free_urb(fifo->urb);
|
|
fifo->urb = NULL;
|
|
}
|
|
fifo->active = 0;
|
|
}
|
|
|
|
/* defines how much ISO packets are handled in one URB */
|
|
static int iso_packets[8] =
|
|
{ ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B,
|
|
ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D
|
|
};
|
|
|
|
/*****************************************************/
|
|
/* transmit completion routine for all ISO tx fifos */
|
|
/*****************************************************/
|
|
static void
|
|
tx_iso_complete(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
|
|
usb_fifo *fifo = context_iso_urb->owner_fifo;
|
|
hfcusb_data *hfc = fifo->hfc;
|
|
int k, tx_offset, num_isoc_packets, sink, len, current_len,
|
|
errcode;
|
|
int frame_complete, transp_mode, fifon, status;
|
|
__u8 threshbit;
|
|
__u8 threshtable[8] = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80 };
|
|
|
|
fifon = fifo->fifonum;
|
|
status = urb->status;
|
|
|
|
tx_offset = 0;
|
|
|
|
if (fifo->active && !status) {
|
|
transp_mode = 0;
|
|
if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS)
|
|
transp_mode = TRUE;
|
|
|
|
/* is FifoFull-threshold set for our channel? */
|
|
threshbit = threshtable[fifon] & hfc->threshold_mask;
|
|
num_isoc_packets = iso_packets[fifon];
|
|
|
|
/* predict dataflow to avoid fifo overflow */
|
|
if (fifon >= HFCUSB_D_TX) {
|
|
sink = (threshbit) ? SINK_DMIN : SINK_DMAX;
|
|
} else {
|
|
sink = (threshbit) ? SINK_MIN : SINK_MAX;
|
|
}
|
|
fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,
|
|
context_iso_urb->buffer, num_isoc_packets,
|
|
fifo->usb_packet_maxlen, fifo->intervall,
|
|
tx_iso_complete, urb->context);
|
|
memset(context_iso_urb->buffer, 0,
|
|
sizeof(context_iso_urb->buffer));
|
|
frame_complete = FALSE;
|
|
/* Generate next Iso Packets */
|
|
for (k = 0; k < num_isoc_packets; ++k) {
|
|
if (fifo->skbuff) {
|
|
len = fifo->skbuff->len;
|
|
/* we lower data margin every msec */
|
|
fifo->bit_line -= sink;
|
|
current_len = (0 - fifo->bit_line) / 8;
|
|
/* maximum 15 byte for every ISO packet makes our life easier */
|
|
if (current_len > 14)
|
|
current_len = 14;
|
|
current_len =
|
|
(len <=
|
|
current_len) ? len : current_len;
|
|
/* how much bit do we put on the line? */
|
|
fifo->bit_line += current_len * 8;
|
|
|
|
context_iso_urb->buffer[tx_offset] = 0;
|
|
if (current_len == len) {
|
|
if (!transp_mode) {
|
|
/* here frame completion */
|
|
context_iso_urb->
|
|
buffer[tx_offset] = 1;
|
|
/* add 2 byte flags and 16bit CRC at end of ISDN frame */
|
|
fifo->bit_line += 32;
|
|
}
|
|
frame_complete = TRUE;
|
|
}
|
|
|
|
memcpy(context_iso_urb->buffer +
|
|
tx_offset + 1, fifo->skbuff->data,
|
|
current_len);
|
|
skb_pull(fifo->skbuff, current_len);
|
|
|
|
/* define packet delimeters within the URB buffer */
|
|
urb->iso_frame_desc[k].offset = tx_offset;
|
|
urb->iso_frame_desc[k].length =
|
|
current_len + 1;
|
|
|
|
tx_offset += (current_len + 1);
|
|
} else {
|
|
urb->iso_frame_desc[k].offset =
|
|
tx_offset++;
|
|
|
|
urb->iso_frame_desc[k].length = 1;
|
|
fifo->bit_line -= sink; /* we lower data margin every msec */
|
|
|
|
if (fifo->bit_line < BITLINE_INF) {
|
|
fifo->bit_line = BITLINE_INF;
|
|
}
|
|
}
|
|
|
|
if (frame_complete) {
|
|
fifo->delete_flg = TRUE;
|
|
fifo->hif->l1l2(fifo->hif,
|
|
PH_DATA | CONFIRM,
|
|
(void *) fifo->skbuff->
|
|
truesize);
|
|
if (fifo->skbuff && fifo->delete_flg) {
|
|
dev_kfree_skb_any(fifo->skbuff);
|
|
fifo->skbuff = NULL;
|
|
fifo->delete_flg = FALSE;
|
|
}
|
|
frame_complete = FALSE;
|
|
}
|
|
}
|
|
errcode = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (errcode < 0) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: error submitting ISO URB: %d \n",
|
|
errcode);
|
|
}
|
|
} else {
|
|
if (status && !hfc->disc_flag) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: tx_iso_complete : urb->status %s (%i), fifonum=%d\n",
|
|
symbolic(urb_errlist, status), status,
|
|
fifon);
|
|
}
|
|
}
|
|
} /* tx_iso_complete */
|
|
|
|
/*****************************************************/
|
|
/* receive completion routine for all ISO tx fifos */
|
|
/*****************************************************/
|
|
static void
|
|
rx_iso_complete(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
|
|
usb_fifo *fifo = context_iso_urb->owner_fifo;
|
|
hfcusb_data *hfc = fifo->hfc;
|
|
int k, len, errcode, offset, num_isoc_packets, fifon, maxlen,
|
|
status;
|
|
unsigned int iso_status;
|
|
__u8 *buf;
|
|
static __u8 eof[8];
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
__u8 i;
|
|
#endif
|
|
|
|
fifon = fifo->fifonum;
|
|
status = urb->status;
|
|
|
|
if (urb->status == -EOVERFLOW) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-USB: ignoring USB DATAOVERRUN for fifo %i \n",
|
|
fifon);
|
|
#endif
|
|
status = 0;
|
|
}
|
|
if (fifo->active && !status) {
|
|
num_isoc_packets = iso_packets[fifon];
|
|
maxlen = fifo->usb_packet_maxlen;
|
|
for (k = 0; k < num_isoc_packets; ++k) {
|
|
len = urb->iso_frame_desc[k].actual_length;
|
|
offset = urb->iso_frame_desc[k].offset;
|
|
buf = context_iso_urb->buffer + offset;
|
|
iso_status = urb->iso_frame_desc[k].status;
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
if (iso_status && !hfc->disc_flag)
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: ISO packet failure - status:%x",
|
|
iso_status);
|
|
|
|
if ((fifon == 5) && (debug > 1)) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: ISO-D-RX lst_urblen:%2d "
|
|
"act_urblen:%2d max-urblen:%2d "
|
|
"EOF:0x%0x DATA: ",
|
|
fifo->last_urblen, len, maxlen,
|
|
eof[5]);
|
|
for (i = 0; i < len; i++)
|
|
printk("%.2x ", buf[i]);
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
if (fifo->last_urblen != maxlen) {
|
|
/* the threshold mask is in the 2nd status byte */
|
|
hfc->threshold_mask = buf[1];
|
|
/* care for L1 state only for D-Channel
|
|
to avoid overlapped iso completions */
|
|
if (fifon == 5) {
|
|
/* the S0 state is in the upper half
|
|
of the 1st status byte */
|
|
state_handler(hfc, buf[0] >> 4);
|
|
}
|
|
eof[fifon] = buf[0] & 1;
|
|
if (len > 2)
|
|
collect_rx_frame(fifo, buf + 2,
|
|
len - 2,
|
|
(len <
|
|
maxlen) ?
|
|
eof[fifon] : 0);
|
|
} else {
|
|
collect_rx_frame(fifo, buf, len,
|
|
(len <
|
|
maxlen) ? eof[fifon] :
|
|
0);
|
|
}
|
|
fifo->last_urblen = len;
|
|
}
|
|
|
|
fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,
|
|
context_iso_urb->buffer, num_isoc_packets,
|
|
fifo->usb_packet_maxlen, fifo->intervall,
|
|
rx_iso_complete, urb->context);
|
|
errcode = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (errcode < 0) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: error submitting ISO URB: %d \n",
|
|
errcode);
|
|
}
|
|
} else {
|
|
if (status && !hfc->disc_flag) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: rx_iso_complete : "
|
|
"urb->status %d, fifonum %d\n",
|
|
status, fifon);
|
|
}
|
|
}
|
|
} /* rx_iso_complete */
|
|
|
|
/*****************************************************/
|
|
/* collect data from interrupt or isochron in */
|
|
/*****************************************************/
|
|
static void
|
|
collect_rx_frame(usb_fifo * fifo, __u8 * data, int len, int finish)
|
|
{
|
|
hfcusb_data *hfc = fifo->hfc;
|
|
int transp_mode, fifon;
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
int i;
|
|
#endif
|
|
fifon = fifo->fifonum;
|
|
transp_mode = 0;
|
|
if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS)
|
|
transp_mode = TRUE;
|
|
|
|
if (!fifo->skbuff) {
|
|
fifo->skbuff = dev_alloc_skb(fifo->max_size + 3);
|
|
if (!fifo->skbuff) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: cannot allocate buffer (dev_alloc_skb) fifo:%d\n",
|
|
fifon);
|
|
return;
|
|
}
|
|
}
|
|
if (len) {
|
|
if (fifo->skbuff->len + len < fifo->max_size) {
|
|
memcpy(skb_put(fifo->skbuff, len), data, len);
|
|
} else {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
printk(KERN_INFO "HFC-S USB: ");
|
|
for (i = 0; i < 15; i++)
|
|
printk("%.2x ",
|
|
fifo->skbuff->data[fifo->skbuff->
|
|
len - 15 + i]);
|
|
printk("\n");
|
|
#endif
|
|
printk(KERN_INFO
|
|
"HCF-USB: got frame exceeded fifo->max_size:%d on fifo:%d\n",
|
|
fifo->max_size, fifon);
|
|
}
|
|
}
|
|
if (transp_mode && fifo->skbuff->len >= 128) {
|
|
fifo->hif->l1l2(fifo->hif, PH_DATA | INDICATION,
|
|
fifo->skbuff);
|
|
fifo->skbuff = NULL;
|
|
return;
|
|
}
|
|
/* we have a complete hdlc packet */
|
|
if (finish) {
|
|
if ((!fifo->skbuff->data[fifo->skbuff->len - 1])
|
|
&& (fifo->skbuff->len > 3)) {
|
|
/* remove CRC & status */
|
|
skb_trim(fifo->skbuff, fifo->skbuff->len - 3);
|
|
if (fifon == HFCUSB_PCM_RX) {
|
|
fifo->hif->l1l2(fifo->hif,
|
|
PH_DATA_E | INDICATION,
|
|
fifo->skbuff);
|
|
} else
|
|
fifo->hif->l1l2(fifo->hif,
|
|
PH_DATA | INDICATION,
|
|
fifo->skbuff);
|
|
fifo->skbuff = NULL; /* buffer was freed from upper layer */
|
|
} else {
|
|
if (fifo->skbuff->len > 3) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: got frame %d bytes but CRC ERROR on fifo:%d!!!\n",
|
|
fifo->skbuff->len, fifon);
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
if (debug > 1) {
|
|
printk(KERN_INFO "HFC-S USB: ");
|
|
for (i = 0; i < 15; i++)
|
|
printk("%.2x ",
|
|
fifo->skbuff->
|
|
data[fifo->skbuff->
|
|
len - 15 + i]);
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
}
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
else {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: frame to small (%d bytes)!!!\n",
|
|
fifo->skbuff->len);
|
|
}
|
|
#endif
|
|
skb_trim(fifo->skbuff, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/***********************************************/
|
|
/* receive completion routine for all rx fifos */
|
|
/***********************************************/
|
|
static void
|
|
rx_complete(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int len;
|
|
int status;
|
|
__u8 *buf, maxlen, fifon;
|
|
usb_fifo *fifo = (usb_fifo *) urb->context;
|
|
hfcusb_data *hfc = fifo->hfc;
|
|
static __u8 eof[8];
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
__u8 i;
|
|
#endif
|
|
|
|
urb->dev = hfc->dev; /* security init */
|
|
|
|
fifon = fifo->fifonum;
|
|
if ((!fifo->active) || (urb->status)) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG, "HFC-S USB: RX-Fifo %i is going down (%i)",
|
|
fifon, urb->status);
|
|
#endif
|
|
fifo->urb->interval = 0; /* cancel automatic rescheduling */
|
|
if (fifo->skbuff) {
|
|
dev_kfree_skb_any(fifo->skbuff);
|
|
fifo->skbuff = NULL;
|
|
}
|
|
return;
|
|
}
|
|
len = urb->actual_length;
|
|
buf = fifo->buffer;
|
|
maxlen = fifo->usb_packet_maxlen;
|
|
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
if ((fifon == 5) && (debug > 1)) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: INT-D-RX lst_urblen:%2d act_urblen:%2d max-urblen:%2d EOF:0x%0x DATA: ",
|
|
fifo->last_urblen, len, maxlen, eof[5]);
|
|
for (i = 0; i < len; i++)
|
|
printk("%.2x ", buf[i]);
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
|
|
if (fifo->last_urblen != fifo->usb_packet_maxlen) {
|
|
/* the threshold mask is in the 2nd status byte */
|
|
hfc->threshold_mask = buf[1];
|
|
/* the S0 state is in the upper half of the 1st status byte */
|
|
state_handler(hfc, buf[0] >> 4);
|
|
eof[fifon] = buf[0] & 1;
|
|
/* if we have more than the 2 status bytes -> collect data */
|
|
if (len > 2)
|
|
collect_rx_frame(fifo, buf + 2,
|
|
urb->actual_length - 2,
|
|
(len < maxlen) ? eof[fifon] : 0);
|
|
} else {
|
|
collect_rx_frame(fifo, buf, urb->actual_length,
|
|
(len < maxlen) ? eof[fifon] : 0);
|
|
}
|
|
fifo->last_urblen = urb->actual_length;
|
|
status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (status) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: error resubmitting URN at rx_complete...\n");
|
|
}
|
|
} /* rx_complete */
|
|
|
|
/***************************************************/
|
|
/* start the interrupt transfer for the given fifo */
|
|
/***************************************************/
|
|
static void
|
|
start_int_fifo(usb_fifo * fifo)
|
|
{
|
|
int errcode;
|
|
|
|
printk(KERN_INFO "HFC-S USB: starting intr IN fifo:%d\n",
|
|
fifo->fifonum);
|
|
|
|
if (!fifo->urb) {
|
|
fifo->urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!fifo->urb)
|
|
return;
|
|
}
|
|
usb_fill_int_urb(fifo->urb, fifo->hfc->dev, fifo->pipe,
|
|
fifo->buffer, fifo->usb_packet_maxlen,
|
|
rx_complete, fifo, fifo->intervall);
|
|
fifo->active = 1; /* must be marked active */
|
|
errcode = usb_submit_urb(fifo->urb, GFP_KERNEL);
|
|
if (errcode) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: submit URB error(start_int_info): status:%i\n",
|
|
errcode);
|
|
fifo->active = 0;
|
|
fifo->skbuff = NULL;
|
|
}
|
|
} /* start_int_fifo */
|
|
|
|
/*****************************/
|
|
/* set the B-channel mode */
|
|
/*****************************/
|
|
static void
|
|
set_hfcmode(hfcusb_data * hfc, int channel, int mode)
|
|
{
|
|
__u8 val, idx_table[2] = { 0, 2 };
|
|
|
|
if (hfc->disc_flag) {
|
|
return;
|
|
}
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG, "HFC-S USB: setting channel %d to mode %d", channel,
|
|
mode);
|
|
#endif
|
|
hfc->b_mode[channel] = mode;
|
|
|
|
/* setup CON_HDLC */
|
|
val = 0;
|
|
if (mode != L1_MODE_NULL)
|
|
val = 8; /* enable fifo? */
|
|
if (mode == L1_MODE_TRANS)
|
|
val |= 2; /* set transparent bit */
|
|
|
|
/* set FIFO to transmit register */
|
|
queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel], 1);
|
|
queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
|
|
/* reset fifo */
|
|
queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
|
|
/* set FIFO to receive register */
|
|
queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel] + 1, 1);
|
|
queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
|
|
/* reset fifo */
|
|
queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
|
|
|
|
val = 0x40;
|
|
if (hfc->b_mode[0])
|
|
val |= 1;
|
|
if (hfc->b_mode[1])
|
|
val |= 2;
|
|
queue_control_request(hfc, HFCUSB_SCTRL, val, 1);
|
|
|
|
val = 0;
|
|
if (hfc->b_mode[0])
|
|
val |= 1;
|
|
if (hfc->b_mode[1])
|
|
val |= 2;
|
|
queue_control_request(hfc, HFCUSB_SCTRL_R, val, 1);
|
|
|
|
if (mode == L1_MODE_NULL) {
|
|
if (channel)
|
|
handle_led(hfc, LED_B2_OFF);
|
|
else
|
|
handle_led(hfc, LED_B1_OFF);
|
|
} else {
|
|
if (channel)
|
|
handle_led(hfc, LED_B2_ON);
|
|
else
|
|
handle_led(hfc, LED_B1_ON);
|
|
}
|
|
}
|
|
|
|
static void
|
|
hfc_usb_l2l1(struct hisax_if *my_hisax_if, int pr, void *arg)
|
|
{
|
|
usb_fifo *fifo = my_hisax_if->priv;
|
|
hfcusb_data *hfc = fifo->hfc;
|
|
|
|
switch (pr) {
|
|
case PH_ACTIVATE | REQUEST:
|
|
if (fifo->fifonum == HFCUSB_D_TX) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC_USB: hfc_usb_d_l2l1 D-chan: PH_ACTIVATE | REQUEST");
|
|
#endif
|
|
if (hfc->l1_state != 3
|
|
&& hfc->l1_state != 7) {
|
|
hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
|
|
PH_DEACTIVATE |
|
|
INDICATION,
|
|
NULL);
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC-S USB: PH_DEACTIVATE | INDICATION sent (not state 3 or 7)");
|
|
#endif
|
|
} else {
|
|
if (hfc->l1_state == 7) { /* l1 already active */
|
|
hfc->d_if.ifc.l1l2(&hfc->
|
|
d_if.
|
|
ifc,
|
|
PH_ACTIVATE
|
|
|
|
|
INDICATION,
|
|
NULL);
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC-S USB: PH_ACTIVATE | INDICATION sent again ;)");
|
|
#endif
|
|
} else {
|
|
/* force sending sending INFO1 */
|
|
queue_control_request(hfc,
|
|
HFCUSB_STATES,
|
|
0x14,
|
|
1);
|
|
mdelay(1);
|
|
/* start l1 activation */
|
|
queue_control_request(hfc,
|
|
HFCUSB_STATES,
|
|
0x04,
|
|
1);
|
|
if (!timer_pending
|
|
(&hfc->t3_timer)) {
|
|
hfc->t3_timer.
|
|
expires =
|
|
jiffies +
|
|
(HFC_TIMER_T3 *
|
|
HZ) / 1000;
|
|
add_timer(&hfc->
|
|
t3_timer);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_ACTIVATE | REQUEST");
|
|
#endif
|
|
set_hfcmode(hfc,
|
|
(fifo->fifonum ==
|
|
HFCUSB_B1_TX) ? 0 : 1,
|
|
(int) arg);
|
|
fifo->hif->l1l2(fifo->hif,
|
|
PH_ACTIVATE | INDICATION,
|
|
NULL);
|
|
}
|
|
break;
|
|
case PH_DEACTIVATE | REQUEST:
|
|
if (fifo->fifonum == HFCUSB_D_TX) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DEACTIVATE | REQUEST");
|
|
#endif
|
|
printk(KERN_INFO
|
|
"HFC-S USB: ISDN TE device should not deativate...\n");
|
|
} else {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(ISDN_DBG,
|
|
"HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DEACTIVATE | REQUEST");
|
|
#endif
|
|
set_hfcmode(hfc,
|
|
(fifo->fifonum ==
|
|
HFCUSB_B1_TX) ? 0 : 1,
|
|
(int) L1_MODE_NULL);
|
|
fifo->hif->l1l2(fifo->hif,
|
|
PH_DEACTIVATE | INDICATION,
|
|
NULL);
|
|
}
|
|
break;
|
|
case PH_DATA | REQUEST:
|
|
if (fifo->skbuff && fifo->delete_flg) {
|
|
dev_kfree_skb_any(fifo->skbuff);
|
|
fifo->skbuff = NULL;
|
|
fifo->delete_flg = FALSE;
|
|
}
|
|
fifo->skbuff = arg; /* we have a new buffer */
|
|
break;
|
|
default:
|
|
printk(KERN_INFO
|
|
"HFC_USB: hfc_usb_d_l2l1: unkown state : %#x\n",
|
|
pr);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* usb_init is called once when a new matching device is detected to setup */
|
|
/* main parameters. It registers the driver at the main hisax module. */
|
|
/* on success 0 is returned. */
|
|
/***************************************************************************/
|
|
static int
|
|
usb_init(hfcusb_data * hfc)
|
|
{
|
|
usb_fifo *fifo;
|
|
int i, err;
|
|
u_char b;
|
|
struct hisax_b_if *p_b_if[2];
|
|
|
|
/* check the chip id */
|
|
if (read_usb(hfc, HFCUSB_CHIP_ID, &b) != 1) {
|
|
printk(KERN_INFO "HFC-USB: cannot read chip id\n");
|
|
return (1);
|
|
}
|
|
if (b != HFCUSB_CHIPID) {
|
|
printk(KERN_INFO "HFC-S USB: Invalid chip id 0x%02x\n", b);
|
|
return (1);
|
|
}
|
|
|
|
/* first set the needed config, interface and alternate */
|
|
err = usb_set_interface(hfc->dev, hfc->if_used, hfc->alt_used);
|
|
|
|
/* do Chip reset */
|
|
write_usb(hfc, HFCUSB_CIRM, 8);
|
|
/* aux = output, reset off */
|
|
write_usb(hfc, HFCUSB_CIRM, 0x10);
|
|
|
|
/* set USB_SIZE to match the the wMaxPacketSize for INT or BULK transfers */
|
|
write_usb(hfc, HFCUSB_USB_SIZE,
|
|
(hfc->packet_size / 8) | ((hfc->packet_size / 8) << 4));
|
|
|
|
/* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */
|
|
write_usb(hfc, HFCUSB_USB_SIZE_I, hfc->iso_packet_size);
|
|
|
|
/* enable PCM/GCI master mode */
|
|
write_usb(hfc, HFCUSB_MST_MODE1, 0); /* set default values */
|
|
write_usb(hfc, HFCUSB_MST_MODE0, 1); /* enable master mode */
|
|
|
|
/* init the fifos */
|
|
write_usb(hfc, HFCUSB_F_THRES,
|
|
(HFCUSB_TX_THRESHOLD /
|
|
8) | ((HFCUSB_RX_THRESHOLD / 8) << 4));
|
|
|
|
fifo = hfc->fifos;
|
|
for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
|
|
write_usb(hfc, HFCUSB_FIFO, i); /* select the desired fifo */
|
|
fifo[i].skbuff = NULL; /* init buffer pointer */
|
|
fifo[i].max_size =
|
|
(i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
|
|
fifo[i].last_urblen = 0;
|
|
/* set 2 bit for D- & E-channel */
|
|
write_usb(hfc, HFCUSB_HDLC_PAR,
|
|
((i <= HFCUSB_B2_RX) ? 0 : 2));
|
|
/* rx hdlc, enable IFF for D-channel */
|
|
write_usb(hfc, HFCUSB_CON_HDLC,
|
|
((i == HFCUSB_D_TX) ? 0x09 : 0x08));
|
|
write_usb(hfc, HFCUSB_INC_RES_F, 2); /* reset the fifo */
|
|
}
|
|
|
|
write_usb(hfc, HFCUSB_CLKDEL, 0x0f); /* clock delay value */
|
|
write_usb(hfc, HFCUSB_STATES, 3 | 0x10); /* set deactivated mode */
|
|
write_usb(hfc, HFCUSB_STATES, 3); /* enable state machine */
|
|
|
|
write_usb(hfc, HFCUSB_SCTRL_R, 0); /* disable both B receivers */
|
|
write_usb(hfc, HFCUSB_SCTRL, 0x40); /* disable B transmitters + capacitive mode */
|
|
|
|
/* set both B-channel to not connected */
|
|
hfc->b_mode[0] = L1_MODE_NULL;
|
|
hfc->b_mode[1] = L1_MODE_NULL;
|
|
|
|
hfc->l1_activated = FALSE;
|
|
hfc->disc_flag = FALSE;
|
|
hfc->led_state = 0;
|
|
hfc->led_new_data = 0;
|
|
hfc->old_led_state = 0;
|
|
|
|
/* init the t3 timer */
|
|
init_timer(&hfc->t3_timer);
|
|
hfc->t3_timer.data = (long) hfc;
|
|
hfc->t3_timer.function = (void *) l1_timer_expire_t3;
|
|
|
|
/* init the t4 timer */
|
|
init_timer(&hfc->t4_timer);
|
|
hfc->t4_timer.data = (long) hfc;
|
|
hfc->t4_timer.function = (void *) l1_timer_expire_t4;
|
|
|
|
/* init the background machinery for control requests */
|
|
hfc->ctrl_read.bRequestType = 0xc0;
|
|
hfc->ctrl_read.bRequest = 1;
|
|
hfc->ctrl_read.wLength = cpu_to_le16(1);
|
|
hfc->ctrl_write.bRequestType = 0x40;
|
|
hfc->ctrl_write.bRequest = 0;
|
|
hfc->ctrl_write.wLength = 0;
|
|
usb_fill_control_urb(hfc->ctrl_urb,
|
|
hfc->dev,
|
|
hfc->ctrl_out_pipe,
|
|
(u_char *) & hfc->ctrl_write,
|
|
NULL, 0, ctrl_complete, hfc);
|
|
/* Init All Fifos */
|
|
for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
|
|
hfc->fifos[i].iso[0].purb = NULL;
|
|
hfc->fifos[i].iso[1].purb = NULL;
|
|
hfc->fifos[i].active = 0;
|
|
}
|
|
/* register Modul to upper Hisax Layers */
|
|
hfc->d_if.owner = THIS_MODULE;
|
|
hfc->d_if.ifc.priv = &hfc->fifos[HFCUSB_D_TX];
|
|
hfc->d_if.ifc.l2l1 = hfc_usb_l2l1;
|
|
for (i = 0; i < 2; i++) {
|
|
hfc->b_if[i].ifc.priv = &hfc->fifos[HFCUSB_B1_TX + i * 2];
|
|
hfc->b_if[i].ifc.l2l1 = hfc_usb_l2l1;
|
|
p_b_if[i] = &hfc->b_if[i];
|
|
}
|
|
/* default Prot: EURO ISDN, should be a module_param */
|
|
hfc->protocol = 2;
|
|
hisax_register(&hfc->d_if, p_b_if, "hfc_usb", hfc->protocol);
|
|
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
hfc_debug = debug;
|
|
#endif
|
|
|
|
for (i = 0; i < 4; i++)
|
|
hfc->fifos[i].hif = &p_b_if[i / 2]->ifc;
|
|
for (i = 4; i < 8; i++)
|
|
hfc->fifos[i].hif = &hfc->d_if.ifc;
|
|
|
|
/* 3 (+1) INT IN + 3 ISO OUT */
|
|
if (hfc->cfg_used == CNF_3INT3ISO || hfc->cfg_used == CNF_4INT3ISO) {
|
|
start_int_fifo(hfc->fifos + HFCUSB_D_RX);
|
|
if (hfc->fifos[HFCUSB_PCM_RX].pipe)
|
|
start_int_fifo(hfc->fifos + HFCUSB_PCM_RX);
|
|
start_int_fifo(hfc->fifos + HFCUSB_B1_RX);
|
|
start_int_fifo(hfc->fifos + HFCUSB_B2_RX);
|
|
}
|
|
/* 3 (+1) ISO IN + 3 ISO OUT */
|
|
if (hfc->cfg_used == CNF_3ISO3ISO || hfc->cfg_used == CNF_4ISO3ISO) {
|
|
start_isoc_chain(hfc->fifos + HFCUSB_D_RX, ISOC_PACKETS_D,
|
|
rx_iso_complete, 16);
|
|
if (hfc->fifos[HFCUSB_PCM_RX].pipe)
|
|
start_isoc_chain(hfc->fifos + HFCUSB_PCM_RX,
|
|
ISOC_PACKETS_D, rx_iso_complete,
|
|
16);
|
|
start_isoc_chain(hfc->fifos + HFCUSB_B1_RX, ISOC_PACKETS_B,
|
|
rx_iso_complete, 16);
|
|
start_isoc_chain(hfc->fifos + HFCUSB_B2_RX, ISOC_PACKETS_B,
|
|
rx_iso_complete, 16);
|
|
}
|
|
|
|
start_isoc_chain(hfc->fifos + HFCUSB_D_TX, ISOC_PACKETS_D,
|
|
tx_iso_complete, 1);
|
|
start_isoc_chain(hfc->fifos + HFCUSB_B1_TX, ISOC_PACKETS_B,
|
|
tx_iso_complete, 1);
|
|
start_isoc_chain(hfc->fifos + HFCUSB_B2_TX, ISOC_PACKETS_B,
|
|
tx_iso_complete, 1);
|
|
|
|
handle_led(hfc, LED_POWER_ON);
|
|
|
|
return (0);
|
|
} /* usb_init */
|
|
|
|
/*************************************************/
|
|
/* function called to probe a new plugged device */
|
|
/*************************************************/
|
|
static int
|
|
hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *dev = interface_to_usbdev(intf);
|
|
hfcusb_data *context;
|
|
struct usb_host_interface *iface = intf->cur_altsetting;
|
|
struct usb_host_interface *iface_used = NULL;
|
|
struct usb_host_endpoint *ep;
|
|
int ifnum = iface->desc.bInterfaceNumber;
|
|
int i, idx, alt_idx, probe_alt_setting, vend_idx, cfg_used, *vcf,
|
|
attr, cfg_found, cidx, ep_addr;
|
|
int cmptbl[16], small_match, iso_packet_size, packet_size,
|
|
alt_used = 0;
|
|
hfcsusb_vdata *driver_info;
|
|
|
|
vend_idx = 0xffff;
|
|
for (i = 0; hfcusb_idtab[i].idVendor; i++) {
|
|
if ((le16_to_cpu(dev->descriptor.idVendor) == hfcusb_idtab[i].idVendor)
|
|
&& (le16_to_cpu(dev->descriptor.idProduct) == hfcusb_idtab[i].idProduct)) {
|
|
vend_idx = i;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-USB: probing interface(%d) actalt(%d) minor(%d)\n", ifnum,
|
|
iface->desc.bAlternateSetting, intf->minor);
|
|
#endif
|
|
printk(KERN_INFO
|
|
"HFC-S USB: probing interface(%d) actalt(%d) minor(%d)\n",
|
|
ifnum, iface->desc.bAlternateSetting, intf->minor);
|
|
|
|
if (vend_idx != 0xffff) {
|
|
/* if vendor and product ID is OK, start probing alternate settings */
|
|
alt_idx = 0;
|
|
small_match = 0xffff;
|
|
|
|
/* default settings */
|
|
iso_packet_size = 16;
|
|
packet_size = 64;
|
|
|
|
while (alt_idx < intf->num_altsetting) {
|
|
iface = intf->altsetting + alt_idx;
|
|
probe_alt_setting = iface->desc.bAlternateSetting;
|
|
cfg_used = 0;
|
|
|
|
/* check for config EOL element */
|
|
while (validconf[cfg_used][0]) {
|
|
cfg_found = TRUE;
|
|
vcf = validconf[cfg_used];
|
|
/* first endpoint descriptor */
|
|
ep = iface->endpoint;
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: (if=%d alt=%d cfg_used=%d)\n",
|
|
ifnum, probe_alt_setting, cfg_used);
|
|
#endif
|
|
memcpy(cmptbl, vcf, 16 * sizeof(int));
|
|
|
|
/* check for all endpoints in this alternate setting */
|
|
for (i = 0; i < iface->desc.bNumEndpoints;
|
|
i++) {
|
|
ep_addr =
|
|
ep->desc.bEndpointAddress;
|
|
/* get endpoint base */
|
|
idx = ((ep_addr & 0x7f) - 1) * 2;
|
|
if (ep_addr & 0x80)
|
|
idx++;
|
|
attr = ep->desc.bmAttributes;
|
|
if (cmptbl[idx] == EP_NUL) {
|
|
cfg_found = FALSE;
|
|
}
|
|
if (attr == USB_ENDPOINT_XFER_INT
|
|
&& cmptbl[idx] == EP_INT)
|
|
cmptbl[idx] = EP_NUL;
|
|
if (attr == USB_ENDPOINT_XFER_BULK
|
|
&& cmptbl[idx] == EP_BLK)
|
|
cmptbl[idx] = EP_NUL;
|
|
if (attr == USB_ENDPOINT_XFER_ISOC
|
|
&& cmptbl[idx] == EP_ISO)
|
|
cmptbl[idx] = EP_NUL;
|
|
|
|
/* check if all INT endpoints match minimum interval */
|
|
if (attr == USB_ENDPOINT_XFER_INT
|
|
&& ep->desc.bInterval <
|
|
vcf[17]) {
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
if (cfg_found)
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: Interrupt Endpoint interval < %d found - skipping config",
|
|
vcf[17]);
|
|
#endif
|
|
cfg_found = FALSE;
|
|
}
|
|
ep++;
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
/* all entries must be EP_NOP or EP_NUL for a valid config */
|
|
if (cmptbl[i] != EP_NOP
|
|
&& cmptbl[i] != EP_NUL)
|
|
cfg_found = FALSE;
|
|
}
|
|
if (cfg_found) {
|
|
if (cfg_used < small_match) {
|
|
small_match = cfg_used;
|
|
alt_used =
|
|
probe_alt_setting;
|
|
iface_used = iface;
|
|
}
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-USB: small_match=%x %x\n",
|
|
small_match, alt_used);
|
|
#endif
|
|
}
|
|
cfg_used++;
|
|
}
|
|
alt_idx++;
|
|
} /* (alt_idx < intf->num_altsetting) */
|
|
|
|
/* found a valid USB Ta Endpint config */
|
|
if (small_match != 0xffff) {
|
|
iface = iface_used;
|
|
if (!
|
|
(context =
|
|
kmalloc(sizeof(hfcusb_data), GFP_KERNEL)))
|
|
return (-ENOMEM); /* got no mem */
|
|
memset(context, 0, sizeof(hfcusb_data));
|
|
|
|
ep = iface->endpoint;
|
|
vcf = validconf[small_match];
|
|
|
|
for (i = 0; i < iface->desc.bNumEndpoints; i++) {
|
|
ep_addr = ep->desc.bEndpointAddress;
|
|
/* get endpoint base */
|
|
idx = ((ep_addr & 0x7f) - 1) * 2;
|
|
if (ep_addr & 0x80)
|
|
idx++;
|
|
cidx = idx & 7;
|
|
attr = ep->desc.bmAttributes;
|
|
|
|
/* init Endpoints */
|
|
if (vcf[idx] != EP_NOP
|
|
&& vcf[idx] != EP_NUL) {
|
|
switch (attr) {
|
|
case USB_ENDPOINT_XFER_INT:
|
|
context->
|
|
fifos[cidx].
|
|
pipe =
|
|
usb_rcvintpipe
|
|
(dev,
|
|
ep->desc.
|
|
bEndpointAddress);
|
|
context->
|
|
fifos[cidx].
|
|
usb_transfer_mode
|
|
= USB_INT;
|
|
packet_size =
|
|
le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
break;
|
|
case USB_ENDPOINT_XFER_BULK:
|
|
if (ep_addr & 0x80)
|
|
context->
|
|
fifos
|
|
[cidx].
|
|
pipe =
|
|
usb_rcvbulkpipe
|
|
(dev,
|
|
ep->
|
|
desc.
|
|
bEndpointAddress);
|
|
else
|
|
context->
|
|
fifos
|
|
[cidx].
|
|
pipe =
|
|
usb_sndbulkpipe
|
|
(dev,
|
|
ep->
|
|
desc.
|
|
bEndpointAddress);
|
|
context->
|
|
fifos[cidx].
|
|
usb_transfer_mode
|
|
= USB_BULK;
|
|
packet_size =
|
|
le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
break;
|
|
case USB_ENDPOINT_XFER_ISOC:
|
|
if (ep_addr & 0x80)
|
|
context->
|
|
fifos
|
|
[cidx].
|
|
pipe =
|
|
usb_rcvisocpipe
|
|
(dev,
|
|
ep->
|
|
desc.
|
|
bEndpointAddress);
|
|
else
|
|
context->
|
|
fifos
|
|
[cidx].
|
|
pipe =
|
|
usb_sndisocpipe
|
|
(dev,
|
|
ep->
|
|
desc.
|
|
bEndpointAddress);
|
|
context->
|
|
fifos[cidx].
|
|
usb_transfer_mode
|
|
= USB_ISOC;
|
|
iso_packet_size =
|
|
le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
break;
|
|
default:
|
|
context->
|
|
fifos[cidx].
|
|
pipe = 0;
|
|
} /* switch attribute */
|
|
|
|
if (context->fifos[cidx].pipe) {
|
|
context->fifos[cidx].
|
|
fifonum = cidx;
|
|
context->fifos[cidx].hfc =
|
|
context;
|
|
context->fifos[cidx].usb_packet_maxlen =
|
|
le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
context->fifos[cidx].
|
|
intervall =
|
|
ep->desc.bInterval;
|
|
context->fifos[cidx].
|
|
skbuff = NULL;
|
|
}
|
|
}
|
|
ep++;
|
|
}
|
|
context->dev = dev; /* save device */
|
|
context->if_used = ifnum; /* save used interface */
|
|
context->alt_used = alt_used; /* and alternate config */
|
|
context->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */
|
|
context->cfg_used = vcf[16]; /* store used config */
|
|
context->vend_idx = vend_idx; /* store found vendor */
|
|
context->packet_size = packet_size;
|
|
context->iso_packet_size = iso_packet_size;
|
|
|
|
/* create the control pipes needed for register access */
|
|
context->ctrl_in_pipe =
|
|
usb_rcvctrlpipe(context->dev, 0);
|
|
context->ctrl_out_pipe =
|
|
usb_sndctrlpipe(context->dev, 0);
|
|
context->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
driver_info =
|
|
(hfcsusb_vdata *) hfcusb_idtab[vend_idx].
|
|
driver_info;
|
|
printk(KERN_INFO "HFC-S USB: detected \"%s\"\n",
|
|
driver_info->vend_name);
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: Endpoint-Config: %s (if=%d alt=%d)\n",
|
|
conf_str[small_match], context->if_used,
|
|
context->alt_used);
|
|
printk(KERN_INFO
|
|
"HFC-S USB: E-channel (\"ECHO:\") logging ");
|
|
if (validconf[small_match][18])
|
|
printk(" possible\n");
|
|
else
|
|
printk("NOT possible\n");
|
|
#endif
|
|
/* init the chip and register the driver */
|
|
if (usb_init(context)) {
|
|
if (context->ctrl_urb) {
|
|
usb_unlink_urb(context->ctrl_urb);
|
|
usb_free_urb(context->ctrl_urb);
|
|
context->ctrl_urb = NULL;
|
|
}
|
|
kfree(context);
|
|
return (-EIO);
|
|
}
|
|
usb_set_intfdata(intf, context);
|
|
return (0);
|
|
}
|
|
} else {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: no valid vendor found in USB descriptor\n");
|
|
}
|
|
return (-EIO);
|
|
}
|
|
|
|
/****************************************************/
|
|
/* function called when an active device is removed */
|
|
/****************************************************/
|
|
static void
|
|
hfc_usb_disconnect(struct usb_interface
|
|
*intf)
|
|
{
|
|
hfcusb_data *context = usb_get_intfdata(intf);
|
|
int i;
|
|
printk(KERN_INFO "HFC-S USB: device disconnect\n");
|
|
context->disc_flag = TRUE;
|
|
usb_set_intfdata(intf, NULL);
|
|
if (!context)
|
|
return;
|
|
if (timer_pending(&context->t3_timer))
|
|
del_timer(&context->t3_timer);
|
|
if (timer_pending(&context->t4_timer))
|
|
del_timer(&context->t4_timer);
|
|
/* tell all fifos to terminate */
|
|
for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
|
|
if (context->fifos[i].usb_transfer_mode == USB_ISOC) {
|
|
if (context->fifos[i].active > 0) {
|
|
stop_isoc_chain(&context->fifos[i]);
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: hfc_usb_disconnect: stopping ISOC chain Fifo no %i",
|
|
i);
|
|
#endif
|
|
}
|
|
} else {
|
|
if (context->fifos[i].active > 0) {
|
|
context->fifos[i].active = 0;
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG,
|
|
"HFC-S USB: hfc_usb_disconnect: unlinking URB for Fifo no %i",
|
|
i);
|
|
#endif
|
|
}
|
|
if (context->fifos[i].urb) {
|
|
usb_unlink_urb(context->fifos[i].urb);
|
|
usb_free_urb(context->fifos[i].urb);
|
|
context->fifos[i].urb = NULL;
|
|
}
|
|
}
|
|
context->fifos[i].active = 0;
|
|
}
|
|
/* wait for all URBS to terminate */
|
|
mdelay(10);
|
|
if (context->ctrl_urb) {
|
|
usb_unlink_urb(context->ctrl_urb);
|
|
usb_free_urb(context->ctrl_urb);
|
|
context->ctrl_urb = NULL;
|
|
}
|
|
hisax_unregister(&context->d_if);
|
|
kfree(context); /* free our structure again */
|
|
} /* hfc_usb_disconnect */
|
|
|
|
/************************************/
|
|
/* our driver information structure */
|
|
/************************************/
|
|
static struct usb_driver hfc_drv = {
|
|
.name = "hfc_usb",
|
|
.id_table = hfcusb_idtab,
|
|
.probe = hfc_usb_probe,
|
|
.disconnect = hfc_usb_disconnect,
|
|
};
|
|
static void __exit
|
|
hfc_usb_exit(void)
|
|
{
|
|
#ifdef CONFIG_HISAX_DEBUG
|
|
DBG(USB_DBG, "HFC-S USB: calling \"hfc_usb_exit\" ...");
|
|
#endif
|
|
usb_deregister(&hfc_drv); /* release our driver */
|
|
printk(KERN_INFO "HFC-S USB: module removed\n");
|
|
}
|
|
|
|
static int __init
|
|
hfc_usb_init(void)
|
|
{
|
|
#ifndef CONFIG_HISAX_DEBUG
|
|
unsigned int debug = -1;
|
|
#endif
|
|
char revstr[30], datestr[30], dummy[30];
|
|
sscanf(hfcusb_revision,
|
|
"%s %s $ %s %s %s $ ", dummy, revstr,
|
|
dummy, datestr, dummy);
|
|
printk(KERN_INFO
|
|
"HFC-S USB: driver module revision %s date %s loaded, (debug=%i)\n",
|
|
revstr, datestr, debug);
|
|
if (usb_register(&hfc_drv)) {
|
|
printk(KERN_INFO
|
|
"HFC-S USB: Unable to register HFC-S USB module at usb stack\n");
|
|
return (-1); /* unable to register */
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
module_init(hfc_usb_init);
|
|
module_exit(hfc_usb_exit);
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(usb, hfcusb_idtab);
|