blob: 98dd9e49b684be5ef56b2960b52bc031a536331f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/******************************************************************************
2 * speedtch.c - Alcatel SpeedTouch USB xDSL modem driver
3 *
4 * Copyright (C) 2001, Alcatel
5 * Copyright (C) 2003, Duncan Sands
6 * Copyright (C) 2004, David Woodhouse
7 *
Duncan Sands48da7262005-05-11 20:20:40 +02008 * Based on "modem_run.c", copyright (C) 2001, Benoit Papillault
9 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * more details.
19 *
20 * You should have received a copy of the GNU General Public License along with
21 * this program; if not, write to the Free Software Foundation, Inc., 59
22 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 *
24 ******************************************************************************/
25
Duncan Sands48da7262005-05-11 20:20:40 +020026#include <asm/page.h>
27#include <linux/device.h>
28#include <linux/errno.h>
29#include <linux/firmware.h>
Duncan Sands48da7262005-05-11 20:20:40 +020030#include <linux/init.h>
31#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include <linux/module.h>
33#include <linux/moduleparam.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/slab.h>
Duncan Sands48da7262005-05-11 20:20:40 +020035#include <linux/stat.h>
36#include <linux/timer.h>
Duncan Sands80aae7a2006-01-13 10:59:23 +010037#include <linux/types.h>
David Brownell5f848132006-12-16 15:34:53 -080038#include <linux/usb/ch9.h>
Duncan Sands48da7262005-05-11 20:20:40 +020039#include <linux/workqueue.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Duncan Sands48da7262005-05-11 20:20:40 +020041#include "usbatm.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43#define DRIVER_AUTHOR "Johan Verrept, Duncan Sands <duncan.sands@free.fr>"
Duncan Sands9b0e54a2006-01-13 11:08:05 +010044#define DRIVER_VERSION "1.10"
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#define DRIVER_DESC "Alcatel SpeedTouch USB driver version " DRIVER_VERSION
46
47static const char speedtch_driver_name[] = "speedtch";
48
Duncan Sands48da7262005-05-11 20:20:40 +020049#define CTRL_TIMEOUT 2000 /* milliseconds */
50#define DATA_TIMEOUT 2000 /* milliseconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
Duncan Sands48da7262005-05-11 20:20:40 +020052#define OFFSET_7 0 /* size 1 */
53#define OFFSET_b 1 /* size 8 */
54#define OFFSET_d 9 /* size 4 */
55#define OFFSET_e 13 /* size 1 */
56#define OFFSET_f 14 /* size 1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
Duncan Sands48da7262005-05-11 20:20:40 +020058#define SIZE_7 1
59#define SIZE_b 8
60#define SIZE_d 4
61#define SIZE_e 1
62#define SIZE_f 1
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Duncan Sands48da7262005-05-11 20:20:40 +020064#define MIN_POLL_DELAY 5000 /* milliseconds */
65#define MAX_POLL_DELAY 60000 /* milliseconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
Duncan Sands48da7262005-05-11 20:20:40 +020067#define RESUBMIT_DELAY 1000 /* milliseconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Duncan Sands80aae7a2006-01-13 10:59:23 +010069#define DEFAULT_BULK_ALTSETTING 1
Duncan Sands67c752b2006-04-28 18:44:06 +020070#define DEFAULT_ISOC_ALTSETTING 3
Duncan Sands48da7262005-05-11 20:20:40 +020071#define DEFAULT_DL_512_FIRST 0
Duncan Sands80aae7a2006-01-13 10:59:23 +010072#define DEFAULT_ENABLE_ISOC 0
Duncan Sands48da7262005-05-11 20:20:40 +020073#define DEFAULT_SW_BUFFERING 0
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
Duncan Sands80aae7a2006-01-13 10:59:23 +010075static unsigned int altsetting = 0; /* zero means: use the default */
Rusty Russell90ab5ee2012-01-13 09:32:20 +103076static bool dl_512_first = DEFAULT_DL_512_FIRST;
77static bool enable_isoc = DEFAULT_ENABLE_ISOC;
78static bool sw_buffering = DEFAULT_SW_BUFFERING;
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
Duncan Sands6a4f1b42006-10-05 10:40:55 +020080#define DEFAULT_B_MAX_DSL 8128
81#define DEFAULT_MODEM_MODE 11
82#define MODEM_OPTION_LENGTH 16
83static const unsigned char DEFAULT_MODEM_OPTION[MODEM_OPTION_LENGTH] = {
84 0x10, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
85};
86
87static unsigned int BMaxDSL = DEFAULT_B_MAX_DSL;
88static unsigned char ModemMode = DEFAULT_MODEM_MODE;
89static unsigned char ModemOption[MODEM_OPTION_LENGTH];
Al Viro64a6f952007-10-14 19:35:30 +010090static unsigned int num_ModemOption;
Duncan Sands6a4f1b42006-10-05 10:40:55 +020091
Duncan Sands80aae7a2006-01-13 10:59:23 +010092module_param(altsetting, uint, S_IRUGO | S_IWUSR);
Duncan Sands48da7262005-05-11 20:20:40 +020093MODULE_PARM_DESC(altsetting,
Duncan Sands80aae7a2006-01-13 10:59:23 +010094 "Alternative setting for data interface (bulk_default: "
95 __MODULE_STRING(DEFAULT_BULK_ALTSETTING) "; isoc_default: "
96 __MODULE_STRING(DEFAULT_ISOC_ALTSETTING) ")");
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
Duncan Sands48da7262005-05-11 20:20:40 +020098module_param(dl_512_first, bool, S_IRUGO | S_IWUSR);
99MODULE_PARM_DESC(dl_512_first,
100 "Read 512 bytes before sending firmware (default: "
101 __MODULE_STRING(DEFAULT_DL_512_FIRST) ")");
102
Duncan Sands80aae7a2006-01-13 10:59:23 +0100103module_param(enable_isoc, bool, S_IRUGO | S_IWUSR);
104MODULE_PARM_DESC(enable_isoc,
105 "Use isochronous transfers if available (default: "
106 __MODULE_STRING(DEFAULT_ENABLE_ISOC) ")");
107
Duncan Sands48da7262005-05-11 20:20:40 +0200108module_param(sw_buffering, bool, S_IRUGO | S_IWUSR);
109MODULE_PARM_DESC(sw_buffering,
110 "Enable software buffering (default: "
111 __MODULE_STRING(DEFAULT_SW_BUFFERING) ")");
112
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200113module_param(BMaxDSL, uint, S_IRUGO | S_IWUSR);
114MODULE_PARM_DESC(BMaxDSL,
115 "default: " __MODULE_STRING(DEFAULT_B_MAX_DSL));
116
117module_param(ModemMode, byte, S_IRUGO | S_IWUSR);
118MODULE_PARM_DESC(ModemMode,
119 "default: " __MODULE_STRING(DEFAULT_MODEM_MODE));
120
121module_param_array(ModemOption, byte, &num_ModemOption, S_IRUGO);
122MODULE_PARM_DESC(ModemOption, "default: 0x10,0x00,0x00,0x00,0x20");
123
Duncan Sands6f749472006-01-13 10:52:38 +0100124#define INTERFACE_DATA 1
Duncan Sands48da7262005-05-11 20:20:40 +0200125#define ENDPOINT_INT 0x81
Duncan Sands80aae7a2006-01-13 10:59:23 +0100126#define ENDPOINT_BULK_DATA 0x07
127#define ENDPOINT_ISOC_DATA 0x07
Duncan Sands48da7262005-05-11 20:20:40 +0200128#define ENDPOINT_FIRMWARE 0x05
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200130struct speedtch_params {
131 unsigned int altsetting;
132 unsigned int BMaxDSL;
133 unsigned char ModemMode;
134 unsigned char ModemOption[MODEM_OPTION_LENGTH];
135};
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137struct speedtch_instance_data {
Duncan Sands48da7262005-05-11 20:20:40 +0200138 struct usbatm_data *usbatm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200140 struct speedtch_params params; /* set in probe, constant afterwards */
Duncan Sands6f749472006-01-13 10:52:38 +0100141
Tejun Heo37c95bf2010-12-24 16:14:20 +0100142 struct timer_list status_check_timer;
143 struct work_struct status_check_work;
Duncan Sands48da7262005-05-11 20:20:40 +0200144
Duncan Sands1a7aad12005-06-23 09:37:56 +0200145 unsigned char last_status;
146
Duncan Sands48da7262005-05-11 20:20:40 +0200147 int poll_delay; /* milliseconds */
148
149 struct timer_list resubmit_timer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 struct urb *int_urb;
151 unsigned char int_data[16];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200153 unsigned char scratch_buffer[16];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154};
155
156/***************
157** firmware **
158***************/
159
Duncan Sands48da7262005-05-11 20:20:40 +0200160static void speedtch_set_swbuff(struct speedtch_instance_data *instance, int state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
Duncan Sands48da7262005-05-11 20:20:40 +0200162 struct usbatm_data *usbatm = instance->usbatm;
163 struct usb_device *usb_dev = usbatm->usb_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 int ret;
165
Duncan Sands48da7262005-05-11 20:20:40 +0200166 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
167 0x32, 0x40, state ? 0x01 : 0x00, 0x00, NULL, 0, CTRL_TIMEOUT);
168 if (ret < 0)
169 usb_warn(usbatm,
170 "%sabling SW buffering: usb_control_msg returned %d\n",
171 state ? "En" : "Dis", ret);
172 else
173 dbg("speedtch_set_swbuff: %sbled SW buffering", state ? "En" : "Dis");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174}
175
176static void speedtch_test_sequence(struct speedtch_instance_data *instance)
177{
Duncan Sands48da7262005-05-11 20:20:40 +0200178 struct usbatm_data *usbatm = instance->usbatm;
179 struct usb_device *usb_dev = usbatm->usb_dev;
180 unsigned char *buf = instance->scratch_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 int ret;
182
183 /* URB 147 */
184 buf[0] = 0x1c;
185 buf[1] = 0x50;
Duncan Sands48da7262005-05-11 20:20:40 +0200186 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
187 0x01, 0x40, 0x0b, 0x00, buf, 2, CTRL_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 if (ret < 0)
Duncan Sands48da7262005-05-11 20:20:40 +0200189 usb_warn(usbatm, "%s failed on URB147: %d\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190
191 /* URB 148 */
192 buf[0] = 0x32;
193 buf[1] = 0x00;
Duncan Sands48da7262005-05-11 20:20:40 +0200194 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
195 0x01, 0x40, 0x02, 0x00, buf, 2, CTRL_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 if (ret < 0)
Duncan Sands48da7262005-05-11 20:20:40 +0200197 usb_warn(usbatm, "%s failed on URB148: %d\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
199 /* URB 149 */
200 buf[0] = 0x01;
201 buf[1] = 0x00;
202 buf[2] = 0x01;
Duncan Sands48da7262005-05-11 20:20:40 +0200203 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
204 0x01, 0x40, 0x03, 0x00, buf, 3, CTRL_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 if (ret < 0)
Duncan Sands48da7262005-05-11 20:20:40 +0200206 usb_warn(usbatm, "%s failed on URB149: %d\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207
208 /* URB 150 */
209 buf[0] = 0x01;
210 buf[1] = 0x00;
211 buf[2] = 0x01;
Duncan Sands48da7262005-05-11 20:20:40 +0200212 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
213 0x01, 0x40, 0x04, 0x00, buf, 3, CTRL_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 if (ret < 0)
Duncan Sands48da7262005-05-11 20:20:40 +0200215 usb_warn(usbatm, "%s failed on URB150: %d\n", __func__, ret);
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200216
217 /* Extra initialisation in recent drivers - gives higher speeds */
218
219 /* URBext1 */
220 buf[0] = instance->params.ModemMode;
221 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
222 0x01, 0x40, 0x11, 0x00, buf, 1, CTRL_TIMEOUT);
223 if (ret < 0)
224 usb_warn(usbatm, "%s failed on URBext1: %d\n", __func__, ret);
225
226 /* URBext2 */
227 /* This seems to be the one which actually triggers the higher sync
228 rate -- it does require the new firmware too, although it works OK
229 with older firmware */
230 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
231 0x01, 0x40, 0x14, 0x00,
232 instance->params.ModemOption,
233 MODEM_OPTION_LENGTH, CTRL_TIMEOUT);
234 if (ret < 0)
235 usb_warn(usbatm, "%s failed on URBext2: %d\n", __func__, ret);
236
237 /* URBext3 */
238 buf[0] = instance->params.BMaxDSL & 0xff;
239 buf[1] = instance->params.BMaxDSL >> 8;
240 ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
241 0x01, 0x40, 0x12, 0x00, buf, 2, CTRL_TIMEOUT);
242 if (ret < 0)
243 usb_warn(usbatm, "%s failed on URBext3: %d\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244}
245
Duncan Sands48da7262005-05-11 20:20:40 +0200246static int speedtch_upload_firmware(struct speedtch_instance_data *instance,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 const struct firmware *fw1,
248 const struct firmware *fw2)
249{
250 unsigned char *buffer;
Duncan Sands48da7262005-05-11 20:20:40 +0200251 struct usbatm_data *usbatm = instance->usbatm;
Duncan Sands48da7262005-05-11 20:20:40 +0200252 struct usb_device *usb_dev = usbatm->usb_dev;
253 int actual_length;
254 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 int offset;
256
Duncan Sands48da7262005-05-11 20:20:40 +0200257 usb_dbg(usbatm, "%s entered\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
259 if (!(buffer = (unsigned char *)__get_free_page(GFP_KERNEL))) {
Duncan Sands48da7262005-05-11 20:20:40 +0200260 ret = -ENOMEM;
261 usb_dbg(usbatm, "%s: no memory for buffer!\n", __func__);
262 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 }
264
Micah Gruber011db812007-09-05 13:49:58 +0800265 if (!usb_ifnum_to_if(usb_dev, 2)) {
Duncan Sands48da7262005-05-11 20:20:40 +0200266 ret = -ENODEV;
267 usb_dbg(usbatm, "%s: interface not found!\n", __func__);
268 goto out_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 }
270
271 /* URB 7 */
272 if (dl_512_first) { /* some modems need a read before writing the firmware */
Duncan Sands48da7262005-05-11 20:20:40 +0200273 ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, ENDPOINT_FIRMWARE),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 buffer, 0x200, &actual_length, 2000);
275
276 if (ret < 0 && ret != -ETIMEDOUT)
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100277 usb_warn(usbatm, "%s: read BLOCK0 from modem failed (%d)!\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 else
Duncan Sands48da7262005-05-11 20:20:40 +0200279 usb_dbg(usbatm, "%s: BLOCK0 downloaded (%d bytes)\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 }
281
282 /* URB 8 : both leds are static green */
283 for (offset = 0; offset < fw1->size; offset += PAGE_SIZE) {
284 int thislen = min_t(int, PAGE_SIZE, fw1->size - offset);
285 memcpy(buffer, fw1->data + offset, thislen);
286
Duncan Sands48da7262005-05-11 20:20:40 +0200287 ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, ENDPOINT_FIRMWARE),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 buffer, thislen, &actual_length, DATA_TIMEOUT);
289
290 if (ret < 0) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100291 usb_err(usbatm, "%s: write BLOCK1 to modem failed (%d)!\n", __func__, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200292 goto out_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 }
Duncan Sands48da7262005-05-11 20:20:40 +0200294 usb_dbg(usbatm, "%s: BLOCK1 uploaded (%zu bytes)\n", __func__, fw1->size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 }
296
297 /* USB led blinking green, ADSL led off */
298
299 /* URB 11 */
Duncan Sands48da7262005-05-11 20:20:40 +0200300 ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, ENDPOINT_FIRMWARE),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 buffer, 0x200, &actual_length, DATA_TIMEOUT);
302
303 if (ret < 0) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100304 usb_err(usbatm, "%s: read BLOCK2 from modem failed (%d)!\n", __func__, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200305 goto out_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306 }
Duncan Sands48da7262005-05-11 20:20:40 +0200307 usb_dbg(usbatm, "%s: BLOCK2 downloaded (%d bytes)\n", __func__, actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
309 /* URBs 12 to 139 - USB led blinking green, ADSL led off */
310 for (offset = 0; offset < fw2->size; offset += PAGE_SIZE) {
311 int thislen = min_t(int, PAGE_SIZE, fw2->size - offset);
312 memcpy(buffer, fw2->data + offset, thislen);
313
Duncan Sands48da7262005-05-11 20:20:40 +0200314 ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, ENDPOINT_FIRMWARE),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 buffer, thislen, &actual_length, DATA_TIMEOUT);
316
317 if (ret < 0) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100318 usb_err(usbatm, "%s: write BLOCK3 to modem failed (%d)!\n", __func__, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200319 goto out_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 }
321 }
Duncan Sands48da7262005-05-11 20:20:40 +0200322 usb_dbg(usbatm, "%s: BLOCK3 uploaded (%zu bytes)\n", __func__, fw2->size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
324 /* USB led static green, ADSL led static red */
325
326 /* URB 142 */
Duncan Sands48da7262005-05-11 20:20:40 +0200327 ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, ENDPOINT_FIRMWARE),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 buffer, 0x200, &actual_length, DATA_TIMEOUT);
329
330 if (ret < 0) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100331 usb_err(usbatm, "%s: read BLOCK4 from modem failed (%d)!\n", __func__, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200332 goto out_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 }
334
335 /* success */
Duncan Sands48da7262005-05-11 20:20:40 +0200336 usb_dbg(usbatm, "%s: BLOCK4 downloaded (%d bytes)\n", __func__, actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
338 /* Delay to allow firmware to start up. We can do this here
339 because we're in our own kernel thread anyway. */
Duncan Sands48da7262005-05-11 20:20:40 +0200340 msleep_interruptible(1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200342 if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, instance->params.altsetting)) < 0) {
343 usb_err(usbatm, "%s: setting interface to %d failed (%d)!\n", __func__, instance->params.altsetting, ret);
Duncan Sands6f749472006-01-13 10:52:38 +0100344 goto out_free;
345 }
346
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 /* Enable software buffering, if requested */
348 if (sw_buffering)
349 speedtch_set_swbuff(instance, 1);
350
351 /* Magic spell; don't ask us what this does */
352 speedtch_test_sequence(instance);
353
Duncan Sands48da7262005-05-11 20:20:40 +0200354 ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
Duncan Sands48da7262005-05-11 20:20:40 +0200356out_free:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 free_page((unsigned long)buffer);
Duncan Sands48da7262005-05-11 20:20:40 +0200358out:
359 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360}
361
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100362static int speedtch_find_firmware(struct usbatm_data *usbatm, struct usb_interface *intf,
363 int phase, const struct firmware **fw_p)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364{
Duncan Sands48da7262005-05-11 20:20:40 +0200365 struct device *dev = &intf->dev;
366 const u16 bcdDevice = le16_to_cpu(interface_to_usbdev(intf)->descriptor.bcdDevice);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 const u8 major_revision = bcdDevice >> 8;
368 const u8 minor_revision = bcdDevice & 0xff;
Duncan Sands48da7262005-05-11 20:20:40 +0200369 char buf[24];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370
371 sprintf(buf, "speedtch-%d.bin.%x.%02x", phase, major_revision, minor_revision);
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100372 usb_dbg(usbatm, "%s: looking for %s\n", __func__, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
Duncan Sands48da7262005-05-11 20:20:40 +0200374 if (request_firmware(fw_p, buf, dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 sprintf(buf, "speedtch-%d.bin.%x", phase, major_revision);
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100376 usb_dbg(usbatm, "%s: looking for %s\n", __func__, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
Duncan Sands48da7262005-05-11 20:20:40 +0200378 if (request_firmware(fw_p, buf, dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 sprintf(buf, "speedtch-%d.bin", phase);
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100380 usb_dbg(usbatm, "%s: looking for %s\n", __func__, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
Duncan Sands48da7262005-05-11 20:20:40 +0200382 if (request_firmware(fw_p, buf, dev)) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100383 usb_err(usbatm, "%s: no stage %d firmware found!\n", __func__, phase);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 return -ENOENT;
385 }
386 }
387 }
388
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100389 usb_info(usbatm, "found stage %d firmware %s\n", phase, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
391 return 0;
392}
393
Duncan Sands48da7262005-05-11 20:20:40 +0200394static int speedtch_heavy_init(struct usbatm_data *usbatm, struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395{
396 const struct firmware *fw1, *fw2;
Duncan Sands48da7262005-05-11 20:20:40 +0200397 struct speedtch_instance_data *instance = usbatm->driver_data;
398 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100400 if ((ret = speedtch_find_firmware(usbatm, intf, 1, &fw1)) < 0)
401 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100403 if ((ret = speedtch_find_firmware(usbatm, intf, 2, &fw2)) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 release_firmware(fw1);
Duncan Sands48da7262005-05-11 20:20:40 +0200405 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 }
407
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100408 if ((ret = speedtch_upload_firmware(instance, fw1, fw2)) < 0)
409 usb_err(usbatm, "%s: firmware upload failed (%d)!\n", __func__, ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410
Duncan Sands48da7262005-05-11 20:20:40 +0200411 release_firmware(fw2);
412 release_firmware(fw1);
413
414 return ret;
415}
416
417
418/**********
419** ATM **
420**********/
421
422static int speedtch_read_status(struct speedtch_instance_data *instance)
423{
424 struct usbatm_data *usbatm = instance->usbatm;
425 struct usb_device *usb_dev = usbatm->usb_dev;
426 unsigned char *buf = instance->scratch_buffer;
427 int ret;
428
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200429 memset(buf, 0, 16);
Duncan Sands48da7262005-05-11 20:20:40 +0200430
431 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
432 0x12, 0xc0, 0x07, 0x00, buf + OFFSET_7, SIZE_7,
433 CTRL_TIMEOUT);
434 if (ret < 0) {
435 atm_dbg(usbatm, "%s: MSG 7 failed\n", __func__);
436 return ret;
437 }
438
439 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
440 0x12, 0xc0, 0x0b, 0x00, buf + OFFSET_b, SIZE_b,
441 CTRL_TIMEOUT);
442 if (ret < 0) {
443 atm_dbg(usbatm, "%s: MSG B failed\n", __func__);
444 return ret;
445 }
446
447 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
448 0x12, 0xc0, 0x0d, 0x00, buf + OFFSET_d, SIZE_d,
449 CTRL_TIMEOUT);
450 if (ret < 0) {
451 atm_dbg(usbatm, "%s: MSG D failed\n", __func__);
452 return ret;
453 }
454
455 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
456 0x01, 0xc0, 0x0e, 0x00, buf + OFFSET_e, SIZE_e,
457 CTRL_TIMEOUT);
458 if (ret < 0) {
459 atm_dbg(usbatm, "%s: MSG E failed\n", __func__);
460 return ret;
461 }
462
463 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
464 0x01, 0xc0, 0x0f, 0x00, buf + OFFSET_f, SIZE_f,
465 CTRL_TIMEOUT);
466 if (ret < 0) {
467 atm_dbg(usbatm, "%s: MSG F failed\n", __func__);
468 return ret;
469 }
470
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 return 0;
472}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
Duncan Sands48da7262005-05-11 20:20:40 +0200474static int speedtch_start_synchro(struct speedtch_instance_data *instance)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475{
Duncan Sands48da7262005-05-11 20:20:40 +0200476 struct usbatm_data *usbatm = instance->usbatm;
477 struct usb_device *usb_dev = usbatm->usb_dev;
478 unsigned char *buf = instance->scratch_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480
Duncan Sands48da7262005-05-11 20:20:40 +0200481 atm_dbg(usbatm, "%s entered\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482
Duncan Sands48da7262005-05-11 20:20:40 +0200483 memset(buf, 0, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484
Duncan Sands48da7262005-05-11 20:20:40 +0200485 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
486 0x12, 0xc0, 0x04, 0x00,
487 buf, 2, CTRL_TIMEOUT);
488
489 if (ret < 0)
490 atm_warn(usbatm, "failed to start ADSL synchronisation: %d\n", ret);
491 else
492 atm_dbg(usbatm, "%s: modem prodded. %d bytes returned: %02x %02x\n",
493 __func__, ret, buf[0], buf[1]);
494
495 return ret;
496}
497
David Howellsc4028952006-11-22 14:57:56 +0000498static void speedtch_check_status(struct work_struct *work)
Duncan Sands48da7262005-05-11 20:20:40 +0200499{
David Howellsc4028952006-11-22 14:57:56 +0000500 struct speedtch_instance_data *instance =
501 container_of(work, struct speedtch_instance_data,
Tejun Heo37c95bf2010-12-24 16:14:20 +0100502 status_check_work);
Duncan Sands48da7262005-05-11 20:20:40 +0200503 struct usbatm_data *usbatm = instance->usbatm;
504 struct atm_dev *atm_dev = usbatm->atm_dev;
505 unsigned char *buf = instance->scratch_buffer;
Duncan Sands1a7aad12005-06-23 09:37:56 +0200506 int down_speed, up_speed, ret;
507 unsigned char status;
Duncan Sands48da7262005-05-11 20:20:40 +0200508
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100509#ifdef VERBOSE_DEBUG
Duncan Sands48da7262005-05-11 20:20:40 +0200510 atm_dbg(usbatm, "%s entered\n", __func__);
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100511#endif
Duncan Sands48da7262005-05-11 20:20:40 +0200512
513 ret = speedtch_read_status(instance);
514 if (ret < 0) {
515 atm_warn(usbatm, "error %d fetching device status\n", ret);
Duncan Sandscd5c08f2005-06-23 09:23:10 +0200516 instance->poll_delay = min(2 * instance->poll_delay, MAX_POLL_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 return;
518 }
519
Duncan Sandscd5c08f2005-06-23 09:23:10 +0200520 instance->poll_delay = max(instance->poll_delay / 2, MIN_POLL_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Duncan Sands1a7aad12005-06-23 09:37:56 +0200522 status = buf[OFFSET_7];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523
Duncan Sands1a7aad12005-06-23 09:37:56 +0200524 if ((status != instance->last_status) || !status) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100525 atm_dbg(usbatm, "%s: line state 0x%02x\n", __func__, status);
526
Duncan Sands1a7aad12005-06-23 09:37:56 +0200527 switch (status) {
528 case 0:
Karl Hiramoto23f89f02010-07-08 20:55:37 +0000529 atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST);
Duncan Sands1a7aad12005-06-23 09:37:56 +0200530 if (instance->last_status)
David S. Miller52fbae22005-07-25 19:54:35 -0700531 atm_info(usbatm, "ADSL line is down\n");
Duncan Sands1a7aad12005-06-23 09:37:56 +0200532 /* It may never resync again unless we ask it to... */
Duncan Sands48da7262005-05-11 20:20:40 +0200533 ret = speedtch_start_synchro(instance);
Duncan Sands1a7aad12005-06-23 09:37:56 +0200534 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
Duncan Sands1a7aad12005-06-23 09:37:56 +0200536 case 0x08:
Karl Hiramoto23f89f02010-07-08 20:55:37 +0000537 atm_dev_signal_change(atm_dev, ATM_PHY_SIG_UNKNOWN);
David S. Miller52fbae22005-07-25 19:54:35 -0700538 atm_info(usbatm, "ADSL line is blocked?\n");
Duncan Sands1a7aad12005-06-23 09:37:56 +0200539 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540
Duncan Sands1a7aad12005-06-23 09:37:56 +0200541 case 0x10:
Karl Hiramoto23f89f02010-07-08 20:55:37 +0000542 atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST);
David S. Miller52fbae22005-07-25 19:54:35 -0700543 atm_info(usbatm, "ADSL line is synchronising\n");
Duncan Sands1a7aad12005-06-23 09:37:56 +0200544 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
Duncan Sands1a7aad12005-06-23 09:37:56 +0200546 case 0x20:
547 down_speed = buf[OFFSET_b] | (buf[OFFSET_b + 1] << 8)
Duncan Sands48da7262005-05-11 20:20:40 +0200548 | (buf[OFFSET_b + 2] << 16) | (buf[OFFSET_b + 3] << 24);
Duncan Sands1a7aad12005-06-23 09:37:56 +0200549 up_speed = buf[OFFSET_b + 4] | (buf[OFFSET_b + 5] << 8)
Duncan Sands48da7262005-05-11 20:20:40 +0200550 | (buf[OFFSET_b + 6] << 16) | (buf[OFFSET_b + 7] << 24);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Duncan Sands48da7262005-05-11 20:20:40 +0200552 if (!(down_speed & 0x0000ffff) && !(up_speed & 0x0000ffff)) {
553 down_speed >>= 16;
554 up_speed >>= 16;
555 }
556
557 atm_dev->link_rate = down_speed * 1000 / 424;
Karl Hiramoto23f89f02010-07-08 20:55:37 +0000558 atm_dev_signal_change(atm_dev, ATM_PHY_SIG_FOUND);
Duncan Sands48da7262005-05-11 20:20:40 +0200559
560 atm_info(usbatm,
Duncan Sands322a95b2005-06-23 09:20:50 +0200561 "ADSL line is up (%d kb/s down | %d kb/s up)\n",
Duncan Sands48da7262005-05-11 20:20:40 +0200562 down_speed, up_speed);
Duncan Sands1a7aad12005-06-23 09:37:56 +0200563 break;
Duncan Sands48da7262005-05-11 20:20:40 +0200564
Duncan Sands1a7aad12005-06-23 09:37:56 +0200565 default:
Karl Hiramoto23f89f02010-07-08 20:55:37 +0000566 atm_dev_signal_change(atm_dev, ATM_PHY_SIG_UNKNOWN);
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100567 atm_info(usbatm, "unknown line state %02x\n", status);
Duncan Sands1a7aad12005-06-23 09:37:56 +0200568 break;
Duncan Sands48da7262005-05-11 20:20:40 +0200569 }
Duncan Sands1a7aad12005-06-23 09:37:56 +0200570
571 instance->last_status = status;
Duncan Sands48da7262005-05-11 20:20:40 +0200572 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573}
574
Duncan Sands48da7262005-05-11 20:20:40 +0200575static void speedtch_status_poll(unsigned long data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576{
Duncan Sands48da7262005-05-11 20:20:40 +0200577 struct speedtch_instance_data *instance = (void *)data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
Tejun Heo37c95bf2010-12-24 16:14:20 +0100579 schedule_work(&instance->status_check_work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580
Duncan Sands48da7262005-05-11 20:20:40 +0200581 /* The following check is racy, but the race is harmless */
582 if (instance->poll_delay < MAX_POLL_DELAY)
Tejun Heo37c95bf2010-12-24 16:14:20 +0100583 mod_timer(&instance->status_check_timer, jiffies + msecs_to_jiffies(instance->poll_delay));
Duncan Sands48da7262005-05-11 20:20:40 +0200584 else
David S. Miller52fbae22005-07-25 19:54:35 -0700585 atm_warn(instance->usbatm, "Too many failures - disabling line status polling\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586}
587
Duncan Sands48da7262005-05-11 20:20:40 +0200588static void speedtch_resubmit_int(unsigned long data)
589{
590 struct speedtch_instance_data *instance = (void *)data;
591 struct urb *int_urb = instance->int_urb;
592 int ret;
593
594 atm_dbg(instance->usbatm, "%s entered\n", __func__);
595
596 if (int_urb) {
597 ret = usb_submit_urb(int_urb, GFP_ATOMIC);
598 if (!ret)
Tejun Heo37c95bf2010-12-24 16:14:20 +0100599 schedule_work(&instance->status_check_work);
Duncan Sands48da7262005-05-11 20:20:40 +0200600 else {
601 atm_dbg(instance->usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret);
602 mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY));
603 }
604 }
605}
606
David Howells7d12e782006-10-05 14:55:46 +0100607static void speedtch_handle_int(struct urb *int_urb)
Duncan Sands48da7262005-05-11 20:20:40 +0200608{
609 struct speedtch_instance_data *instance = int_urb->context;
610 struct usbatm_data *usbatm = instance->usbatm;
611 unsigned int count = int_urb->actual_length;
Greg Kroah-Hartman9a5a3e92007-07-18 10:58:02 -0700612 int status = int_urb->status;
613 int ret;
Duncan Sands48da7262005-05-11 20:20:40 +0200614
615 /* The magic interrupt for "up state" */
Jesper Juhl3c6bee12006-01-09 20:54:01 -0800616 static const unsigned char up_int[6] = { 0xa1, 0x00, 0x01, 0x00, 0x00, 0x00 };
Duncan Sands48da7262005-05-11 20:20:40 +0200617 /* The magic interrupt for "down state" */
Jesper Juhl3c6bee12006-01-09 20:54:01 -0800618 static const unsigned char down_int[6] = { 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00 };
Duncan Sands48da7262005-05-11 20:20:40 +0200619
620 atm_dbg(usbatm, "%s entered\n", __func__);
621
Greg Kroah-Hartman9a5a3e92007-07-18 10:58:02 -0700622 if (status < 0) {
623 atm_dbg(usbatm, "%s: nonzero urb status %d!\n", __func__, status);
Duncan Sands48da7262005-05-11 20:20:40 +0200624 goto fail;
625 }
626
627 if ((count == 6) && !memcmp(up_int, instance->int_data, 6)) {
Tejun Heo37c95bf2010-12-24 16:14:20 +0100628 del_timer(&instance->status_check_timer);
David S. Miller52fbae22005-07-25 19:54:35 -0700629 atm_info(usbatm, "DSL line goes up\n");
Duncan Sands48da7262005-05-11 20:20:40 +0200630 } else if ((count == 6) && !memcmp(down_int, instance->int_data, 6)) {
David S. Miller52fbae22005-07-25 19:54:35 -0700631 atm_info(usbatm, "DSL line goes down\n");
Duncan Sands48da7262005-05-11 20:20:40 +0200632 } else {
633 int i;
634
635 atm_dbg(usbatm, "%s: unknown interrupt packet of length %d:", __func__, count);
636 for (i = 0; i < count; i++)
637 printk(" %02x", instance->int_data[i]);
638 printk("\n");
639 goto fail;
640 }
641
642 if ((int_urb = instance->int_urb)) {
643 ret = usb_submit_urb(int_urb, GFP_ATOMIC);
Tejun Heo37c95bf2010-12-24 16:14:20 +0100644 schedule_work(&instance->status_check_work);
Duncan Sands48da7262005-05-11 20:20:40 +0200645 if (ret < 0) {
646 atm_dbg(usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret);
647 goto fail;
648 }
649 }
650
651 return;
652
653fail:
654 if ((int_urb = instance->int_urb))
655 mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY));
656}
657
658static int speedtch_atm_start(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
659{
660 struct usb_device *usb_dev = usbatm->usb_dev;
661 struct speedtch_instance_data *instance = usbatm->driver_data;
662 int i, ret;
663 unsigned char mac_str[13];
664
665 atm_dbg(usbatm, "%s entered\n", __func__);
666
Duncan Sands48da7262005-05-11 20:20:40 +0200667 /* Set MAC address, it is stored in the serial number */
668 memset(atm_dev->esi, 0, sizeof(atm_dev->esi));
669 if (usb_string(usb_dev, usb_dev->descriptor.iSerialNumber, mac_str, sizeof(mac_str)) == 12) {
670 for (i = 0; i < 6; i++)
Andy Shevchenko96b89f32010-05-24 14:33:25 -0700671 atm_dev->esi[i] = (hex_to_bin(mac_str[i * 2]) << 4) +
672 hex_to_bin(mac_str[i * 2 + 1]);
Duncan Sands48da7262005-05-11 20:20:40 +0200673 }
674
675 /* Start modem synchronisation */
676 ret = speedtch_start_synchro(instance);
677
678 /* Set up interrupt endpoint */
679 if (instance->int_urb) {
680 ret = usb_submit_urb(instance->int_urb, GFP_KERNEL);
681 if (ret < 0) {
682 /* Doesn't matter; we'll poll anyway */
683 atm_dbg(usbatm, "%s: submission of interrupt URB failed (%d)!\n", __func__, ret);
684 usb_free_urb(instance->int_urb);
685 instance->int_urb = NULL;
686 }
687 }
688
689 /* Start status polling */
Tejun Heo37c95bf2010-12-24 16:14:20 +0100690 mod_timer(&instance->status_check_timer, jiffies + msecs_to_jiffies(1000));
Duncan Sands48da7262005-05-11 20:20:40 +0200691
692 return 0;
693}
694
695static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
696{
697 struct speedtch_instance_data *instance = usbatm->driver_data;
698 struct urb *int_urb = instance->int_urb;
699
700 atm_dbg(usbatm, "%s entered\n", __func__);
701
Tejun Heo37c95bf2010-12-24 16:14:20 +0100702 del_timer_sync(&instance->status_check_timer);
Duncan Sands48da7262005-05-11 20:20:40 +0200703
704 /*
705 * Since resubmit_timer and int_urb can schedule themselves and
706 * each other, shutting them down correctly takes some care
707 */
708 instance->int_urb = NULL; /* signal shutdown */
709 mb();
710 usb_kill_urb(int_urb);
711 del_timer_sync(&instance->resubmit_timer);
712 /*
713 * At this point, speedtch_handle_int and speedtch_resubmit_int
714 * can run or be running, but instance->int_urb == NULL means that
715 * they will not reschedule
716 */
717 usb_kill_urb(int_urb);
718 del_timer_sync(&instance->resubmit_timer);
719 usb_free_urb(int_urb);
720
Tejun Heo569ff2d2010-12-24 16:14:20 +0100721 flush_work_sync(&instance->status_check_work);
Duncan Sands48da7262005-05-11 20:20:40 +0200722}
723
Alan Stern8fc7aea2008-10-20 09:52:12 -0400724static int speedtch_pre_reset(struct usb_interface *intf)
725{
726 return 0;
727}
728
729static int speedtch_post_reset(struct usb_interface *intf)
730{
731 return 0;
732}
733
Duncan Sands48da7262005-05-11 20:20:40 +0200734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735/**********
736** USB **
737**********/
738
Duncan Sands48da7262005-05-11 20:20:40 +0200739static struct usb_device_id speedtch_usb_ids[] = {
740 {USB_DEVICE(0x06b9, 0x4061)},
741 {}
742};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743
Duncan Sands48da7262005-05-11 20:20:40 +0200744MODULE_DEVICE_TABLE(usb, speedtch_usb_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745
Duncan Sands48da7262005-05-11 20:20:40 +0200746static int speedtch_usb_probe(struct usb_interface *, const struct usb_device_id *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747
Duncan Sands48da7262005-05-11 20:20:40 +0200748static struct usb_driver speedtch_usb_driver = {
Duncan Sands48da7262005-05-11 20:20:40 +0200749 .name = speedtch_driver_name,
750 .probe = speedtch_usb_probe,
751 .disconnect = usbatm_usb_disconnect,
Alan Stern8fc7aea2008-10-20 09:52:12 -0400752 .pre_reset = speedtch_pre_reset,
753 .post_reset = speedtch_post_reset,
Duncan Sands48da7262005-05-11 20:20:40 +0200754 .id_table = speedtch_usb_ids
755};
756
Nicolas Kaiser6c4b7f72010-06-09 20:22:03 +0200757static void speedtch_release_interfaces(struct usb_device *usb_dev,
758 int num_interfaces)
759{
Duncan Sands48da7262005-05-11 20:20:40 +0200760 struct usb_interface *cur_intf;
761 int i;
762
Nicolas Kaiser9196cc72010-06-09 20:43:03 +0200763 for (i = 0; i < num_interfaces; i++)
Duncan Sands48da7262005-05-11 20:20:40 +0200764 if ((cur_intf = usb_ifnum_to_if(usb_dev, i))) {
765 usb_set_intfdata(cur_intf, NULL);
766 usb_driver_release_interface(&speedtch_usb_driver, cur_intf);
767 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768}
769
Duncan Sands48da7262005-05-11 20:20:40 +0200770static int speedtch_bind(struct usbatm_data *usbatm,
771 struct usb_interface *intf,
Duncan Sands35644b02006-01-17 11:16:13 +0100772 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773{
Duncan Sands48da7262005-05-11 20:20:40 +0200774 struct usb_device *usb_dev = interface_to_usbdev(intf);
Duncan Sands80aae7a2006-01-13 10:59:23 +0100775 struct usb_interface *cur_intf, *data_intf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 struct speedtch_instance_data *instance;
Duncan Sands48da7262005-05-11 20:20:40 +0200777 int ifnum = intf->altsetting->desc.bInterfaceNumber;
778 int num_interfaces = usb_dev->actconfig->desc.bNumInterfaces;
779 int i, ret;
Duncan Sands80aae7a2006-01-13 10:59:23 +0100780 int use_isoc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
Duncan Sands48da7262005-05-11 20:20:40 +0200782 usb_dbg(usbatm, "%s entered\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100784 /* sanity checks */
785
Duncan Sands48da7262005-05-11 20:20:40 +0200786 if (usb_dev->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100787 usb_err(usbatm, "%s: wrong device class %d\n", __func__, usb_dev->descriptor.bDeviceClass);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 return -ENODEV;
Duncan Sands48da7262005-05-11 20:20:40 +0200789 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
Duncan Sands80aae7a2006-01-13 10:59:23 +0100791 if (!(data_intf = usb_ifnum_to_if(usb_dev, INTERFACE_DATA))) {
792 usb_err(usbatm, "%s: data interface not found!\n", __func__);
793 return -ENODEV;
794 }
795
Duncan Sands48da7262005-05-11 20:20:40 +0200796 /* claim all interfaces */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
Nicolas Kaiser9196cc72010-06-09 20:43:03 +0200798 for (i = 0; i < num_interfaces; i++) {
Duncan Sands48da7262005-05-11 20:20:40 +0200799 cur_intf = usb_ifnum_to_if(usb_dev, i);
800
801 if ((i != ifnum) && cur_intf) {
802 ret = usb_driver_claim_interface(&speedtch_usb_driver, cur_intf, usbatm);
803
804 if (ret < 0) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100805 usb_err(usbatm, "%s: failed to claim interface %2d (%d)!\n", __func__, i, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200806 speedtch_release_interfaces(usb_dev, i);
807 return ret;
808 }
809 }
810 }
811
Duncan Sands9a734ef2006-01-13 09:38:22 +0100812 instance = kzalloc(sizeof(*instance), GFP_KERNEL);
Duncan Sands48da7262005-05-11 20:20:40 +0200813
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 if (!instance) {
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100815 usb_err(usbatm, "%s: no memory for instance data!\n", __func__);
Duncan Sands48da7262005-05-11 20:20:40 +0200816 ret = -ENOMEM;
817 goto fail_release;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 }
819
Duncan Sands48da7262005-05-11 20:20:40 +0200820 instance->usbatm = usbatm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200822 /* module parameters may change at any moment, so take a snapshot */
823 instance->params.altsetting = altsetting;
824 instance->params.BMaxDSL = BMaxDSL;
825 instance->params.ModemMode = ModemMode;
826 memcpy(instance->params.ModemOption, DEFAULT_MODEM_OPTION, MODEM_OPTION_LENGTH);
827 memcpy(instance->params.ModemOption, ModemOption, num_ModemOption);
Duncan Sands80aae7a2006-01-13 10:59:23 +0100828 use_isoc = enable_isoc;
Duncan Sands6f749472006-01-13 10:52:38 +0100829
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200830 if (instance->params.altsetting)
831 if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, instance->params.altsetting)) < 0) {
832 usb_err(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, instance->params.altsetting, ret);
833 instance->params.altsetting = 0; /* fall back to default */
Duncan Sands6f749472006-01-13 10:52:38 +0100834 }
835
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200836 if (!instance->params.altsetting && use_isoc)
Duncan Sands80aae7a2006-01-13 10:59:23 +0100837 if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, DEFAULT_ISOC_ALTSETTING)) < 0) {
838 usb_dbg(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, DEFAULT_ISOC_ALTSETTING, ret);
839 use_isoc = 0; /* fall back to bulk */
840 }
841
842 if (use_isoc) {
843 const struct usb_host_interface *desc = data_intf->cur_altsetting;
844 const __u8 target_address = USB_DIR_IN | usbatm->driver->isoc_in;
Duncan Sands80aae7a2006-01-13 10:59:23 +0100845
846 use_isoc = 0; /* fall back to bulk if endpoint not found */
847
Nicolas Kaiser9196cc72010-06-09 20:43:03 +0200848 for (i = 0; i < desc->desc.bNumEndpoints; i++) {
Duncan Sands80aae7a2006-01-13 10:59:23 +0100849 const struct usb_endpoint_descriptor *endpoint_desc = &desc->endpoint[i].desc;
850
851 if ((endpoint_desc->bEndpointAddress == target_address)) {
Luiz Fernando N. Capitulinoc5dd1f92006-10-26 13:02:58 -0300852 use_isoc =
853 usb_endpoint_xfer_isoc(endpoint_desc);
Duncan Sands80aae7a2006-01-13 10:59:23 +0100854 break;
855 }
856 }
857
858 if (!use_isoc)
859 usb_info(usbatm, "isochronous transfer not supported - using bulk\n");
860 }
861
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200862 if (!use_isoc && !instance->params.altsetting)
Duncan Sands80aae7a2006-01-13 10:59:23 +0100863 if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, DEFAULT_BULK_ALTSETTING)) < 0) {
864 usb_err(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, DEFAULT_BULK_ALTSETTING, ret);
Duncan Sands6f749472006-01-13 10:52:38 +0100865 goto fail_free;
866 }
Duncan Sands80aae7a2006-01-13 10:59:23 +0100867
Duncan Sands6a4f1b42006-10-05 10:40:55 +0200868 if (!instance->params.altsetting)
869 instance->params.altsetting = use_isoc ? DEFAULT_ISOC_ALTSETTING : DEFAULT_BULK_ALTSETTING;
Duncan Sands80aae7a2006-01-13 10:59:23 +0100870
871 usbatm->flags |= (use_isoc ? UDSL_USE_ISOC : 0);
Duncan Sands6f749472006-01-13 10:52:38 +0100872
Tejun Heo37c95bf2010-12-24 16:14:20 +0100873 INIT_WORK(&instance->status_check_work, speedtch_check_status);
874 init_timer(&instance->status_check_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875
Tejun Heo37c95bf2010-12-24 16:14:20 +0100876 instance->status_check_timer.function = speedtch_status_poll;
877 instance->status_check_timer.data = (unsigned long)instance;
Duncan Sands1a7aad12005-06-23 09:37:56 +0200878 instance->last_status = 0xff;
Duncan Sands48da7262005-05-11 20:20:40 +0200879 instance->poll_delay = MIN_POLL_DELAY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Duncan Sands48da7262005-05-11 20:20:40 +0200881 init_timer(&instance->resubmit_timer);
882 instance->resubmit_timer.function = speedtch_resubmit_int;
883 instance->resubmit_timer.data = (unsigned long)instance;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
Duncan Sands48da7262005-05-11 20:20:40 +0200885 instance->int_urb = usb_alloc_urb(0, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Duncan Sands48da7262005-05-11 20:20:40 +0200887 if (instance->int_urb)
888 usb_fill_int_urb(instance->int_urb, usb_dev,
889 usb_rcvintpipe(usb_dev, ENDPOINT_INT),
890 instance->int_data, sizeof(instance->int_data),
891 speedtch_handle_int, instance, 50);
892 else
893 usb_dbg(usbatm, "%s: no memory for interrupt urb!\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894
Duncan Sands48da7262005-05-11 20:20:40 +0200895 /* check whether the modem already seems to be alive */
896 ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
897 0x12, 0xc0, 0x07, 0x00,
898 instance->scratch_buffer + OFFSET_7, SIZE_7, 500);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Duncan Sands80aae7a2006-01-13 10:59:23 +0100900 usbatm->flags |= (ret == SIZE_7 ? UDSL_SKIP_HEAVY_INIT : 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901
Duncan Sands35644b02006-01-17 11:16:13 +0100902 usb_dbg(usbatm, "%s: firmware %s loaded\n", __func__, usbatm->flags & UDSL_SKIP_HEAVY_INIT ? "already" : "not");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903
Duncan Sands35644b02006-01-17 11:16:13 +0100904 if (!(usbatm->flags & UDSL_SKIP_HEAVY_INIT))
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100905 if ((ret = usb_reset_device(usb_dev)) < 0) {
906 usb_err(usbatm, "%s: device reset failed (%d)!\n", __func__, ret);
Duncan Sands48da7262005-05-11 20:20:40 +0200907 goto fail_free;
Duncan Sands0ec3c7e2006-01-17 11:15:13 +0100908 }
Duncan Sands48da7262005-05-11 20:20:40 +0200909
910 usbatm->driver_data = instance;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
912 return 0;
913
Duncan Sands48da7262005-05-11 20:20:40 +0200914fail_free:
915 usb_free_urb(instance->int_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 kfree(instance);
Duncan Sands48da7262005-05-11 20:20:40 +0200917fail_release:
918 speedtch_release_interfaces(usb_dev, num_interfaces);
919 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920}
921
Duncan Sands48da7262005-05-11 20:20:40 +0200922static void speedtch_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923{
Duncan Sands48da7262005-05-11 20:20:40 +0200924 struct usb_device *usb_dev = interface_to_usbdev(intf);
925 struct speedtch_instance_data *instance = usbatm->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926
Duncan Sands48da7262005-05-11 20:20:40 +0200927 usb_dbg(usbatm, "%s entered\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Duncan Sands48da7262005-05-11 20:20:40 +0200929 speedtch_release_interfaces(usb_dev, usb_dev->actconfig->desc.bNumInterfaces);
930 usb_free_urb(instance->int_urb);
931 kfree(instance);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932}
933
Duncan Sands48da7262005-05-11 20:20:40 +0200934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935/***********
936** init **
937***********/
938
Duncan Sands48da7262005-05-11 20:20:40 +0200939static struct usbatm_driver speedtch_usbatm_driver = {
Duncan Sands48da7262005-05-11 20:20:40 +0200940 .driver_name = speedtch_driver_name,
941 .bind = speedtch_bind,
942 .heavy_init = speedtch_heavy_init,
943 .unbind = speedtch_unbind,
944 .atm_start = speedtch_atm_start,
945 .atm_stop = speedtch_atm_stop,
Duncan Sands80aae7a2006-01-13 10:59:23 +0100946 .bulk_in = ENDPOINT_BULK_DATA,
947 .bulk_out = ENDPOINT_BULK_DATA,
948 .isoc_in = ENDPOINT_ISOC_DATA
Duncan Sands48da7262005-05-11 20:20:40 +0200949};
950
951static int speedtch_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
952{
953 return usbatm_usb_probe(intf, id, &speedtch_usbatm_driver);
954}
955
Greg Kroah-Hartman65db4302011-11-18 09:34:02 -0800956module_usb_driver(speedtch_usb_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958MODULE_AUTHOR(DRIVER_AUTHOR);
959MODULE_DESCRIPTION(DRIVER_DESC);
960MODULE_LICENSE("GPL");
961MODULE_VERSION(DRIVER_VERSION);