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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * USB HandSpring Visor, Palm m50x, and Sony Clie driver
3 * (supports all of the Palm OS USB devices)
4 *
5 * Copyright (C) 1999 - 2004
6 * Greg Kroah-Hartman (greg@kroah.com)
7 *
Greg Kroah-Hartman4d0dce32007-06-12 11:43:37 -07008 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 *
Alan Coxd60d4392008-07-22 11:12:15 +010012 * See Documentation/usb/usb-serial.txt for more information on using this
13 * driver
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 */
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/kernel.h>
18#include <linux/errno.h>
19#include <linux/init.h>
20#include <linux/slab.h>
21#include <linux/tty.h>
22#include <linux/tty_driver.h>
23#include <linux/tty_flip.h>
24#include <linux/module.h>
25#include <linux/moduleparam.h>
26#include <linux/spinlock.h>
Alan Coxd60d4392008-07-22 11:12:15 +010027#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include <linux/usb.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -070029#include <linux/usb/serial.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "visor.h"
31
32/*
33 * Version Information
34 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
36#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
37
38/* function prototypes for a handspring visor */
Alan Coxd60d4392008-07-22 11:12:15 +010039static int visor_open(struct tty_struct *tty, struct usb_serial_port *port,
40 struct file *filp);
41static void visor_close(struct tty_struct *tty, struct usb_serial_port *port,
42 struct file *filp);
43static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
44 const unsigned char *buf, int count);
45static int visor_write_room(struct tty_struct *tty);
46static void visor_throttle(struct tty_struct *tty);
47static void visor_unthrottle(struct tty_struct *tty);
48static int visor_probe(struct usb_serial *serial,
49 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070050static int visor_calc_num_ports(struct usb_serial *serial);
Alan Coxd60d4392008-07-22 11:12:15 +010051static void visor_shutdown(struct usb_serial *serial);
52static void visor_write_bulk_callback(struct urb *urb);
53static void visor_read_bulk_callback(struct urb *urb);
54static void visor_read_int_callback(struct urb *urb);
55static int clie_3_5_startup(struct usb_serial *serial);
56static int treo_attach(struct usb_serial *serial);
57static int clie_5_attach(struct usb_serial *serial);
58static int palm_os_3_probe(struct usb_serial *serial,
59 const struct usb_device_id *id);
60static int palm_os_4_probe(struct usb_serial *serial,
61 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63/* Parameters that may be passed into the module. */
64static int debug;
65static __u16 vendor;
66static __u16 product;
67
68static struct usb_device_id id_table [] = {
69 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
70 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
71 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
72 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
73 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
74 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Hendrik Schweppe04d52462006-02-19 19:00:04 +010075 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
76 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
78 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
79 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
80 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
81 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
82 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
83 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
84 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
85 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
86 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
87 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
88 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
89 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
90 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
91 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
92 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
gregkh@suse.deac21e9f2005-04-18 17:39:20 -070093 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
94 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
96 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
98 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
99 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
100 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
101 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
102 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
103 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
104 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
105 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
106 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
107 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
108 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
109 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
110 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Maximilian Attemsc8ba84a2007-08-04 10:19:41 +0200111 { USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
112 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100113 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100115 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Larry Battraw115c1ce2005-04-18 17:39:20 -0700117 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
118 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
Alan Coxd60d4392008-07-22 11:12:15 +0100119 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
121 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
122 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
123 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
124 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
125 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
126 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
127 { }, /* optional parameter entry */
128 { } /* Terminating entry */
129};
130
131static struct usb_device_id clie_id_5_table [] = {
132 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
133 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
134 { }, /* optional parameter entry */
135 { } /* Terminating entry */
136};
137
138static struct usb_device_id clie_id_3_5_table [] = {
139 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
140 { } /* Terminating entry */
141};
142
143static struct usb_device_id id_table_combined [] = {
144 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
145 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
146 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
Hendrik Schweppe04d52462006-02-19 19:00:04 +0100147 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
149 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
150 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
151 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
152 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
153 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
154 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
155 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
gregkh@suse.deac21e9f2005-04-18 17:39:20 -0700156 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
159 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
160 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
161 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
162 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
163 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
164 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
165 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
166 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
167 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
168 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
Larry Battraw115c1ce2005-04-18 17:39:20 -0700169 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
171 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
172 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
173 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
174 { }, /* optional parameter entry */
175 { } /* Terminating entry */
176};
177
Alan Coxd60d4392008-07-22 11:12:15 +0100178MODULE_DEVICE_TABLE(usb, id_table_combined);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179
180static struct usb_driver visor_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 .name = "visor",
182 .probe = usb_serial_probe,
183 .disconnect = usb_serial_disconnect,
184 .id_table = id_table_combined,
Greg Kroah-Hartmanba9dc652005-11-16 13:41:28 -0800185 .no_dynamic_id = 1,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186};
187
Alan Coxd60d4392008-07-22 11:12:15 +0100188/* All of the device info needed for the Handspring Visor,
189 and Palm 4.0 devices */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700190static struct usb_serial_driver handspring_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700191 .driver = {
192 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700193 .name = "visor",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700194 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700195 .description = "Handspring Visor / Palm OS",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100196 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 .id_table = id_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 .num_ports = 2,
199 .open = visor_open,
200 .close = visor_close,
201 .throttle = visor_throttle,
202 .unthrottle = visor_unthrottle,
203 .attach = treo_attach,
204 .probe = visor_probe,
205 .calc_num_ports = visor_calc_num_ports,
206 .shutdown = visor_shutdown,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 .write = visor_write,
208 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 .write_bulk_callback = visor_write_bulk_callback,
210 .read_bulk_callback = visor_read_bulk_callback,
211 .read_int_callback = visor_read_int_callback,
212};
213
214/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700215static struct usb_serial_driver clie_5_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700216 .driver = {
217 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700218 .name = "clie_5",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700219 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700220 .description = "Sony Clie 5.0",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100221 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 .id_table = clie_id_5_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 .num_ports = 2,
224 .open = visor_open,
225 .close = visor_close,
226 .throttle = visor_throttle,
227 .unthrottle = visor_unthrottle,
228 .attach = clie_5_attach,
229 .probe = visor_probe,
230 .calc_num_ports = visor_calc_num_ports,
231 .shutdown = visor_shutdown,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 .write = visor_write,
233 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 .write_bulk_callback = visor_write_bulk_callback,
235 .read_bulk_callback = visor_read_bulk_callback,
236 .read_int_callback = visor_read_int_callback,
237};
238
239/* device info for the Sony Clie OS version 3.5 */
Greg Kroah-Hartmanea653702005-06-20 21:15:16 -0700240static struct usb_serial_driver clie_3_5_device = {
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700241 .driver = {
242 .owner = THIS_MODULE,
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700243 .name = "clie_3.5",
Greg Kroah-Hartman18fcac32005-06-20 21:15:16 -0700244 },
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700245 .description = "Sony Clie 3.5",
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100246 .usb_driver = &visor_driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 .id_table = clie_id_3_5_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 .num_ports = 1,
249 .open = visor_open,
250 .close = visor_close,
251 .throttle = visor_throttle,
252 .unthrottle = visor_unthrottle,
253 .attach = clie_3_5_startup,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 .write = visor_write,
255 .write_room = visor_write_room,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 .write_bulk_callback = visor_write_bulk_callback,
257 .read_bulk_callback = visor_read_bulk_callback,
258};
259
260struct visor_private {
261 spinlock_t lock;
262 int bytes_in;
263 int bytes_out;
264 int outstanding_urbs;
Oliver Neukumb308e742007-05-07 10:37:08 +0200265 unsigned char throttled;
266 unsigned char actually_throttled;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267};
268
269/* number of outstanding urbs to prevent userspace DoS from happening */
270#define URB_UPPER_LIMIT 42
271
272static int stats;
273
274/******************************************************************************
275 * Handspring Visor specific driver functions
276 ******************************************************************************/
Alan Coxd60d4392008-07-22 11:12:15 +0100277static int visor_open(struct tty_struct *tty, struct usb_serial_port *port,
278 struct file *filp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279{
280 struct usb_serial *serial = port->serial;
281 struct visor_private *priv = usb_get_serial_port_data(port);
282 unsigned long flags;
283 int result = 0;
284
Harvey Harrison441b62c2008-03-03 16:08:34 -0800285 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286
287 if (!port->read_urb) {
288 /* this is needed for some brain dead Sony devices */
289 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
290 return -ENODEV;
291 }
292
293 spin_lock_irqsave(&priv->lock, flags);
294 priv->bytes_in = 0;
295 priv->bytes_out = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 priv->throttled = 0;
297 spin_unlock_irqrestore(&priv->lock, flags);
298
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 /* Start reading from the device */
Alan Coxd60d4392008-07-22 11:12:15 +0100300 usb_fill_bulk_urb(port->read_urb, serial->dev,
301 usb_rcvbulkpipe(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 port->bulk_in_endpointAddress),
303 port->read_urb->transfer_buffer,
304 port->read_urb->transfer_buffer_length,
305 visor_read_bulk_callback, port);
306 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
307 if (result) {
Alan Coxd60d4392008-07-22 11:12:15 +0100308 dev_err(&port->dev,
309 "%s - failed submitting read urb, error %d\n",
310 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 goto exit;
312 }
Alan Coxd60d4392008-07-22 11:12:15 +0100313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 if (port->interrupt_in_urb) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800315 dbg("%s - adding interrupt input for treo", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
317 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100318 dev_err(&port->dev,
319 "%s - failed submitting interrupt urb, error %d\n",
320 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 }
Alan Coxd60d4392008-07-22 11:12:15 +0100322exit:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 return result;
324}
325
326
Alan Cox95da3102008-07-22 11:09:07 +0100327static void visor_close(struct tty_struct *tty,
Alan Coxd60d4392008-07-22 11:12:15 +0100328 struct usb_serial_port *port, struct file *filp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329{
330 struct visor_private *priv = usb_get_serial_port_data(port);
331 unsigned char *transfer_buffer;
332
Harvey Harrison441b62c2008-03-03 16:08:34 -0800333 dbg("%s - port %d", __func__, port->number);
Alan Coxd60d4392008-07-22 11:12:15 +0100334
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 /* shutdown our urbs */
336 usb_kill_urb(port->read_urb);
Mariusz Kozlowskibcb54a52006-11-08 15:36:55 +0100337 usb_kill_urb(port->interrupt_in_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100339 mutex_lock(&port->serial->disc_mutex);
340 if (!port->serial->disconnected) {
341 /* Try to send shutdown message, unless the device is gone */
Alan Coxd60d4392008-07-22 11:12:15 +0100342 transfer_buffer = kmalloc(0x12, GFP_KERNEL);
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100343 if (transfer_buffer) {
Alan Coxd60d4392008-07-22 11:12:15 +0100344 usb_control_msg(port->serial->dev,
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100345 usb_rcvctrlpipe(port->serial->dev, 0),
346 VISOR_CLOSE_NOTIFICATION, 0xc2,
347 0x0000, 0x0000,
348 transfer_buffer, 0x12, 300);
Alan Coxd60d4392008-07-22 11:12:15 +0100349 kfree(transfer_buffer);
Oliver Neukume33fe4d2008-01-21 17:44:10 +0100350 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 }
Oliver Neukum95bef012008-01-22 13:56:18 +0100352 mutex_unlock(&port->serial->disc_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
354 if (stats)
355 dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
356 priv->bytes_in, priv->bytes_out);
357}
358
359
Alan Cox95da3102008-07-22 11:09:07 +0100360static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
361 const unsigned char *buf, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362{
363 struct visor_private *priv = usb_get_serial_port_data(port);
364 struct usb_serial *serial = port->serial;
365 struct urb *urb;
366 unsigned char *buffer;
367 unsigned long flags;
368 int status;
369
Harvey Harrison441b62c2008-03-03 16:08:34 -0800370 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
372 spin_lock_irqsave(&priv->lock, flags);
373 if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
374 spin_unlock_irqrestore(&priv->lock, flags);
Harvey Harrison441b62c2008-03-03 16:08:34 -0800375 dbg("%s - write limit hit\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 return 0;
377 }
Oliver Neukumb80349b2007-03-23 11:58:03 +0100378 priv->outstanding_urbs++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 spin_unlock_irqrestore(&priv->lock, flags);
380
Alan Coxd60d4392008-07-22 11:12:15 +0100381 buffer = kmalloc(count, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 if (!buffer) {
383 dev_err(&port->dev, "out of memory\n");
Oliver Neukumb80349b2007-03-23 11:58:03 +0100384 count = -ENOMEM;
385 goto error_no_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 }
387
388 urb = usb_alloc_urb(0, GFP_ATOMIC);
389 if (!urb) {
390 dev_err(&port->dev, "no more free urbs\n");
Oliver Neukumb80349b2007-03-23 11:58:03 +0100391 count = -ENOMEM;
392 goto error_no_urb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 }
394
Alan Coxd60d4392008-07-22 11:12:15 +0100395 memcpy(buffer, buf, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Harvey Harrison441b62c2008-03-03 16:08:34 -0800397 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
Alan Coxd60d4392008-07-22 11:12:15 +0100399 usb_fill_bulk_urb(urb, serial->dev,
400 usb_sndbulkpipe(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 port->bulk_out_endpointAddress),
Alan Coxd60d4392008-07-22 11:12:15 +0100402 buffer, count,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 visor_write_bulk_callback, port);
404
405 /* send it down the pipe */
406 status = usb_submit_urb(urb, GFP_ATOMIC);
407 if (status) {
Alan Coxd60d4392008-07-22 11:12:15 +0100408 dev_err(&port->dev,
409 "%s - usb_submit_urb(write bulk) failed with status = %d\n",
410 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 count = status;
Oliver Neukumb80349b2007-03-23 11:58:03 +0100412 goto error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 } else {
414 spin_lock_irqsave(&priv->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 priv->bytes_out += count;
416 spin_unlock_irqrestore(&priv->lock, flags);
417 }
418
419 /* we are done with this urb, so let the host driver
420 * really free it when it is finished with it */
Oliver Neukumb80349b2007-03-23 11:58:03 +0100421 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
423 return count;
Oliver Neukumb80349b2007-03-23 11:58:03 +0100424error:
425 usb_free_urb(urb);
426error_no_urb:
427 kfree(buffer);
428error_no_buffer:
429 spin_lock_irqsave(&priv->lock, flags);
430 --priv->outstanding_urbs;
431 spin_unlock_irqrestore(&priv->lock, flags);
432 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433}
434
435
Alan Coxd60d4392008-07-22 11:12:15 +0100436static int visor_write_room(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437{
Alan Cox95da3102008-07-22 11:09:07 +0100438 struct usb_serial_port *port = tty->driver_data;
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700439 struct visor_private *priv = usb_get_serial_port_data(port);
440 unsigned long flags;
441
Harvey Harrison441b62c2008-03-03 16:08:34 -0800442 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
444 /*
445 * We really can take anything the user throws at us
446 * but let's pick a nice big number to tell the tty
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700447 * layer that we have lots of free space, unless we don't.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 */
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700449
450 spin_lock_irqsave(&priv->lock, flags);
451 if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
452 spin_unlock_irqrestore(&priv->lock, flags);
Harvey Harrison441b62c2008-03-03 16:08:34 -0800453 dbg("%s - write limit hit\n", __func__);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700454 return 0;
455 }
456 spin_unlock_irqrestore(&priv->lock, flags);
457
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 return 2048;
459}
460
461
Alan Coxd60d4392008-07-22 11:12:15 +0100462static void visor_write_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463{
Ming Leicdc97792008-02-24 18:41:47 +0800464 struct usb_serial_port *port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 struct visor_private *priv = usb_get_serial_port_data(port);
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700466 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 unsigned long flags;
468
469 /* free up the transfer buffer, as usb_free_urb() does not do this */
Alan Coxd60d4392008-07-22 11:12:15 +0100470 kfree(urb->transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Harvey Harrison441b62c2008-03-03 16:08:34 -0800472 dbg("%s - port %d", __func__, port->number);
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700473
474 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 dbg("%s - nonzero write bulk status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800476 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477
478 spin_lock_irqsave(&priv->lock, flags);
479 --priv->outstanding_urbs;
480 spin_unlock_irqrestore(&priv->lock, flags);
481
Pete Zaitcevcf2c7482006-05-22 21:58:49 -0700482 usb_serial_port_softint(port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483}
484
485
Alan Coxd60d4392008-07-22 11:12:15 +0100486static void visor_read_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487{
Ming Leicdc97792008-02-24 18:41:47 +0800488 struct usb_serial_port *port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 struct visor_private *priv = usb_get_serial_port_data(port);
490 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700491 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 struct tty_struct *tty;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 int result;
Alan Cox4a90f092008-10-13 10:39:46 +0100494 int available_room = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495
Harvey Harrison441b62c2008-03-03 16:08:34 -0800496 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700498 if (status) {
499 dbg("%s - nonzero read bulk status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800500 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 return;
502 }
503
Alan Coxd60d4392008-07-22 11:12:15 +0100504 usb_serial_debug_data(debug, &port->dev, __func__,
505 urb->actual_length, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506
Alan Cox4a90f092008-10-13 10:39:46 +0100507 if (urb->actual_length) {
508 tty = tty_port_tty_get(&port->port);
509 if (tty) {
510 available_room = tty_buffer_request_room(tty,
Alan Coxd60d4392008-07-22 11:12:15 +0100511 urb->actual_length);
Alan Cox4a90f092008-10-13 10:39:46 +0100512 if (available_room) {
513 tty_insert_flip_string(tty, data,
514 available_room);
515 tty_flip_buffer_push(tty);
516 }
517 tty_kref_put(tty);
Oliver Neukumb308e742007-05-07 10:37:08 +0200518 }
519 spin_lock(&priv->lock);
520 priv->bytes_in += available_room;
521
522 } else {
523 spin_lock(&priv->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
526 /* Continue trying to always read if we should */
Oliver Neukumb308e742007-05-07 10:37:08 +0200527 if (!priv->throttled) {
Alan Coxd60d4392008-07-22 11:12:15 +0100528 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 usb_rcvbulkpipe(port->serial->dev,
Alan Coxd60d4392008-07-22 11:12:15 +0100530 port->bulk_in_endpointAddress),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 port->read_urb->transfer_buffer,
532 port->read_urb->transfer_buffer_length,
533 visor_read_bulk_callback, port);
534 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
535 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100536 dev_err(&port->dev,
537 "%s - failed resubmitting read urb, error %d\n",
538 __func__, result);
539 } else
Oliver Neukumb308e742007-05-07 10:37:08 +0200540 priv->actually_throttled = 1;
Oliver Neukumb308e742007-05-07 10:37:08 +0200541 spin_unlock(&priv->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542}
543
Alan Coxd60d4392008-07-22 11:12:15 +0100544static void visor_read_int_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545{
Ming Leicdc97792008-02-24 18:41:47 +0800546 struct usb_serial_port *port = urb->context;
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700547 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 int result;
549
Greg Kroah-Hartman38e8c912007-06-15 15:44:13 -0700550 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 case 0:
552 /* success */
553 break;
554 case -ECONNRESET:
555 case -ENOENT:
556 case -ESHUTDOWN:
557 /* this urb is terminated, clean up */
558 dbg("%s - urb shutting down with status: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800559 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 return;
561 default:
562 dbg("%s - nonzero urb status received: %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800563 __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 goto exit;
565 }
566
567 /*
568 * This information is still unknown what it can be used for.
569 * If anyone has an idea, please let the author know...
570 *
571 * Rumor has it this endpoint is used to notify when data
572 * is ready to be read from the bulk ones.
573 */
Harvey Harrison441b62c2008-03-03 16:08:34 -0800574 usb_serial_debug_data(debug, &port->dev, __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 urb->actual_length, urb->transfer_buffer);
576
577exit:
Alan Coxd60d4392008-07-22 11:12:15 +0100578 result = usb_submit_urb(urb, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100580 dev_err(&urb->dev->dev,
581 "%s - Error %d submitting interrupt urb\n",
582 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583}
584
Alan Coxd60d4392008-07-22 11:12:15 +0100585static void visor_throttle(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586{
Alan Cox95da3102008-07-22 11:09:07 +0100587 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 struct visor_private *priv = usb_get_serial_port_data(port);
589 unsigned long flags;
590
Harvey Harrison441b62c2008-03-03 16:08:34 -0800591 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 spin_lock_irqsave(&priv->lock, flags);
593 priv->throttled = 1;
594 spin_unlock_irqrestore(&priv->lock, flags);
595}
596
597
Alan Coxd60d4392008-07-22 11:12:15 +0100598static void visor_unthrottle(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599{
Alan Cox95da3102008-07-22 11:09:07 +0100600 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 struct visor_private *priv = usb_get_serial_port_data(port);
602 unsigned long flags;
603 int result;
604
Harvey Harrison441b62c2008-03-03 16:08:34 -0800605 dbg("%s - port %d", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 spin_lock_irqsave(&priv->lock, flags);
607 priv->throttled = 0;
Oliver Neukumb308e742007-05-07 10:37:08 +0200608 priv->actually_throttled = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 spin_unlock_irqrestore(&priv->lock, flags);
610
611 port->read_urb->dev = port->serial->dev;
612 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
613 if (result)
Alan Coxd60d4392008-07-22 11:12:15 +0100614 dev_err(&port->dev,
615 "%s - failed submitting read urb, error %d\n",
616 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617}
618
Alan Coxd60d4392008-07-22 11:12:15 +0100619static int palm_os_3_probe(struct usb_serial *serial,
620 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621{
622 struct device *dev = &serial->dev->dev;
623 struct visor_connection_info *connection_info;
624 unsigned char *transfer_buffer;
625 char *string;
626 int retval = 0;
627 int i;
628 int num_ports = 0;
629
Harvey Harrison441b62c2008-03-03 16:08:34 -0800630 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
Alan Coxd60d4392008-07-22 11:12:15 +0100632 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 if (!transfer_buffer) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800634 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 sizeof(*connection_info));
636 return -ENOMEM;
637 }
638
639 /* send a get connection info request */
Alan Coxd60d4392008-07-22 11:12:15 +0100640 retval = usb_control_msg(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 usb_rcvctrlpipe(serial->dev, 0),
642 VISOR_GET_CONNECTION_INFORMATION,
643 0xc2, 0x0000, 0x0000, transfer_buffer,
644 sizeof(*connection_info), 300);
645 if (retval < 0) {
646 dev_err(dev, "%s - error %d getting connection information\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800647 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 goto exit;
649 }
650
651 if (retval == sizeof(*connection_info)) {
Alan Coxd60d4392008-07-22 11:12:15 +0100652 connection_info = (struct visor_connection_info *)
653 transfer_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
655 num_ports = le16_to_cpu(connection_info->num_ports);
656 for (i = 0; i < num_ports; ++i) {
Alan Coxd60d4392008-07-22 11:12:15 +0100657 switch (
658 connection_info->connections[i].port_function_id) {
659 case VISOR_FUNCTION_GENERIC:
660 string = "Generic";
661 break;
662 case VISOR_FUNCTION_DEBUGGER:
663 string = "Debugger";
664 break;
665 case VISOR_FUNCTION_HOTSYNC:
666 string = "HotSync";
667 break;
668 case VISOR_FUNCTION_CONSOLE:
669 string = "Console";
670 break;
671 case VISOR_FUNCTION_REMOTE_FILE_SYS:
672 string = "Remote File System";
673 break;
674 default:
675 string = "unknown";
676 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 }
678 dev_info(dev, "%s: port %d, is for %s use\n",
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700679 serial->type->description,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 connection_info->connections[i].port, string);
681 }
682 }
683 /*
684 * Handle devices that report invalid stuff here.
685 */
686 if (num_ports == 0 || num_ports > 2) {
Alan Coxd60d4392008-07-22 11:12:15 +0100687 dev_warn(dev, "%s: No valid connect info available\n",
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700688 serial->type->description);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 num_ports = 2;
690 }
Alan Coxd60d4392008-07-22 11:12:15 +0100691
Greg Kroah-Hartman269bda12005-06-20 21:15:16 -0700692 dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 num_ports);
694
695 /*
696 * save off our num_ports info so that we can use it in the
697 * calc_num_ports callback
698 */
699 usb_set_serial_data(serial, (void *)(long)num_ports);
700
Alan Coxd60d4392008-07-22 11:12:15 +0100701 /* ask for the number of bytes available, but ignore the
702 response as it is broken */
703 retval = usb_control_msg(serial->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 usb_rcvctrlpipe(serial->dev, 0),
705 VISOR_REQUEST_BYTES_AVAILABLE,
706 0xc2, 0x0000, 0x0005, transfer_buffer,
707 0x02, 300);
708 if (retval < 0)
709 dev_err(dev, "%s - error %d getting bytes available request\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800710 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 retval = 0;
712
713exit:
Alan Coxd60d4392008-07-22 11:12:15 +0100714 kfree(transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
716 return retval;
717}
718
Alan Coxd60d4392008-07-22 11:12:15 +0100719static int palm_os_4_probe(struct usb_serial *serial,
720 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721{
722 struct device *dev = &serial->dev->dev;
723 struct palm_ext_connection_info *connection_info;
724 unsigned char *transfer_buffer;
725 int retval;
726
Harvey Harrison441b62c2008-03-03 16:08:34 -0800727 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
Alan Coxd60d4392008-07-22 11:12:15 +0100729 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 if (!transfer_buffer) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800731 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 sizeof(*connection_info));
733 return -ENOMEM;
734 }
735
Alan Coxd60d4392008-07-22 11:12:15 +0100736 retval = usb_control_msg(serial->dev,
737 usb_rcvctrlpipe(serial->dev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 PALM_GET_EXT_CONNECTION_INFORMATION,
739 0xc2, 0x0000, 0x0000, transfer_buffer,
Alan Coxd60d4392008-07-22 11:12:15 +0100740 sizeof(*connection_info), 300);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 if (retval < 0)
742 dev_err(dev, "%s - error %d getting connection info\n",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800743 __func__, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 else
Harvey Harrison441b62c2008-03-03 16:08:34 -0800745 usb_serial_debug_data(debug, &serial->dev->dev, __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 retval, transfer_buffer);
747
Alan Coxd60d4392008-07-22 11:12:15 +0100748 kfree(transfer_buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 return 0;
750}
751
752
Alan Coxd60d4392008-07-22 11:12:15 +0100753static int visor_probe(struct usb_serial *serial,
754 const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755{
756 int retval = 0;
Alan Coxd60d4392008-07-22 11:12:15 +0100757 int (*startup)(struct usb_serial *serial,
758 const struct usb_device_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
Harvey Harrison441b62c2008-03-03 16:08:34 -0800760 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
762 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700763 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 serial->dev->actconfig->desc.bConfigurationValue);
765 return -ENODEV;
766 }
767
768 if (id->driver_info) {
769 startup = (void *)id->driver_info;
770 retval = startup(serial, id);
771 }
772
773 return retval;
774}
775
Alan Coxd60d4392008-07-22 11:12:15 +0100776static int visor_calc_num_ports(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777{
778 int num_ports = (int)(long)(usb_get_serial_data(serial));
779
780 if (num_ports)
781 usb_set_serial_data(serial, NULL);
782
783 return num_ports;
784}
785
786static int generic_startup(struct usb_serial *serial)
787{
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700788 struct usb_serial_port **ports = serial->port;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789 struct visor_private *priv;
790 int i;
791
792 for (i = 0; i < serial->num_ports; ++i) {
Alan Coxd60d4392008-07-22 11:12:15 +0100793 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700794 if (!priv) {
795 while (i-- != 0) {
796 priv = usb_get_serial_port_data(ports[i]);
797 usb_set_serial_port_data(ports[i], NULL);
798 kfree(priv);
799 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 return -ENOMEM;
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700801 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 spin_lock_init(&priv->lock);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700803 usb_set_serial_port_data(ports[i], priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 }
805 return 0;
806}
807
Alan Coxd60d4392008-07-22 11:12:15 +0100808static int clie_3_5_startup(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809{
810 struct device *dev = &serial->dev->dev;
811 int result;
812 u8 data;
813
Harvey Harrison441b62c2008-03-03 16:08:34 -0800814 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815
816 /*
817 * Note that PEG-300 series devices expect the following two calls.
818 */
819
820 /* get the config number */
Alan Coxd60d4392008-07-22 11:12:15 +0100821 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
823 0, 0, &data, 1, 3000);
824 if (result < 0) {
Alan Coxd60d4392008-07-22 11:12:15 +0100825 dev_err(dev, "%s: get config number failed: %d\n",
826 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 return result;
828 }
829 if (result != 1) {
Alan Coxd60d4392008-07-22 11:12:15 +0100830 dev_err(dev, "%s: get config number bad return length: %d\n",
831 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832 return -EIO;
833 }
834
835 /* get the interface number */
Alan Coxd60d4392008-07-22 11:12:15 +0100836 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
837 USB_REQ_GET_INTERFACE,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 USB_DIR_IN | USB_RECIP_INTERFACE,
839 0, 0, &data, 1, 3000);
840 if (result < 0) {
Alan Coxd60d4392008-07-22 11:12:15 +0100841 dev_err(dev, "%s: get interface number failed: %d\n",
842 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 return result;
844 }
845 if (result != 1) {
Alan Coxd60d4392008-07-22 11:12:15 +0100846 dev_err(dev,
847 "%s: get interface number bad return length: %d\n",
848 __func__, result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 return -EIO;
850 }
851
852 return generic_startup(serial);
853}
Alan Coxd60d4392008-07-22 11:12:15 +0100854
855static int treo_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856{
857 struct usb_serial_port *swap_port;
858
859 /* Only do this endpoint hack for the Handspring devices with
860 * interrupt in endpoints, which for now are the Treo devices. */
Alan Coxd60d4392008-07-22 11:12:15 +0100861 if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
862 == HANDSPRING_VENDOR_ID) ||
863 (le16_to_cpu(serial->dev->descriptor.idVendor)
864 == KYOCERA_VENDOR_ID)) ||
865 (serial->num_interrupt_in == 0))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 goto generic_startup;
867
Harvey Harrison441b62c2008-03-03 16:08:34 -0800868 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
870 /*
Alan Coxd60d4392008-07-22 11:12:15 +0100871 * It appears that Treos and Kyoceras want to use the
872 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
873 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
874 * Note that swapping the bulk out endpoints would break lots of
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 * apps that want to communicate on the second port.
876 */
877#define COPY_PORT(dest, src) \
Alan Coxd60d4392008-07-22 11:12:15 +0100878 do { \
879 dest->read_urb = src->read_urb; \
880 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
881 dest->bulk_in_buffer = src->bulk_in_buffer; \
882 dest->interrupt_in_urb = src->interrupt_in_urb; \
883 dest->interrupt_in_endpointAddress = \
884 src->interrupt_in_endpointAddress;\
885 dest->interrupt_in_buffer = src->interrupt_in_buffer; \
886 } while (0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
888 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
889 if (!swap_port)
890 return -ENOMEM;
891 COPY_PORT(swap_port, serial->port[0]);
892 COPY_PORT(serial->port[0], serial->port[1]);
893 COPY_PORT(serial->port[1], swap_port);
894 kfree(swap_port);
895
896generic_startup:
897 return generic_startup(serial);
898}
899
Alan Coxd60d4392008-07-22 11:12:15 +0100900static int clie_5_attach(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901{
Harvey Harrison441b62c2008-03-03 16:08:34 -0800902 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903
Alan Coxd60d4392008-07-22 11:12:15 +0100904 /* TH55 registers 2 ports.
905 Communication in from the UX50/TH55 uses bulk_in_endpointAddress
906 from port 0. Communication out to the UX50/TH55 uses
907 bulk_out_endpointAddress from port 1
908
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 Lets do a quick and dirty mapping
910 */
Alan Coxd60d4392008-07-22 11:12:15 +0100911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 /* some sanity check */
913 if (serial->num_ports < 2)
914 return -1;
Alan Coxd60d4392008-07-22 11:12:15 +0100915
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 /* port 0 now uses the modified endpoint Address */
Alan Coxd60d4392008-07-22 11:12:15 +0100917 serial->port[0]->bulk_out_endpointAddress =
918 serial->port[1]->bulk_out_endpointAddress;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
920 return generic_startup(serial);
921}
922
Alan Coxd60d4392008-07-22 11:12:15 +0100923static void visor_shutdown(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924{
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700925 struct visor_private *priv;
926 int i;
927
Harvey Harrison441b62c2008-03-03 16:08:34 -0800928 dbg("%s", __func__);
Pete Zaitcevbd97c4f2006-06-21 15:03:40 -0700929
930 for (i = 0; i < serial->num_ports; i++) {
931 priv = usb_get_serial_port_data(serial->port[i]);
932 if (priv) {
933 usb_set_serial_port_data(serial->port[i], NULL);
934 kfree(priv);
935 }
936 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937}
938
Alan Coxd60d4392008-07-22 11:12:15 +0100939static int __init visor_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940{
941 int i, retval;
942 /* Only if parameters were passed to us */
Alan Coxd60d4392008-07-22 11:12:15 +0100943 if (vendor > 0 && product > 0) {
944 struct usb_device_id usb_dev_temp[] = {
945 {
946 USB_DEVICE(vendor, product),
947 .driver_info =
948 (kernel_ulong_t) &palm_os_4_probe
949 }
950 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
952 /* Find the last entry in id_table */
Alan Coxd60d4392008-07-22 11:12:15 +0100953 for (i = 0;; i++) {
954 if (id_table[i].idVendor == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 id_table[i] = usb_dev_temp[0];
956 break;
957 }
958 }
959 /* Find the last entry in id_table_combined */
Alan Coxd60d4392008-07-22 11:12:15 +0100960 for (i = 0;; i++) {
961 if (id_table_combined[i].idVendor == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 id_table_combined[i] = usb_dev_temp[0];
963 break;
964 }
965 }
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700966 printk(KERN_INFO KBUILD_MODNAME
967 ": Untested USB device specified at time of module insertion\n");
968 printk(KERN_INFO KBUILD_MODNAME
969 ": Warning: This is not guaranteed to work\n");
970 printk(KERN_INFO KBUILD_MODNAME
971 ": Using a newer kernel is preferred to this method\n");
972 printk(KERN_INFO KBUILD_MODNAME
973 ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 vendor, product);
975 }
976 retval = usb_serial_register(&handspring_device);
977 if (retval)
978 goto failed_handspring_register;
979 retval = usb_serial_register(&clie_3_5_device);
980 if (retval)
981 goto failed_clie_3_5_register;
982 retval = usb_serial_register(&clie_5_device);
983 if (retval)
984 goto failed_clie_5_register;
985 retval = usb_register(&visor_driver);
Alan Coxd60d4392008-07-22 11:12:15 +0100986 if (retval)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 goto failed_usb_register;
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700988 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989
990 return 0;
991failed_usb_register:
992 usb_serial_deregister(&clie_5_device);
993failed_clie_5_register:
994 usb_serial_deregister(&clie_3_5_device);
995failed_clie_3_5_register:
996 usb_serial_deregister(&handspring_device);
997failed_handspring_register:
998 return retval;
999}
1000
1001
1002static void __exit visor_exit (void)
1003{
Alan Coxd60d4392008-07-22 11:12:15 +01001004 usb_deregister(&visor_driver);
1005 usb_serial_deregister(&handspring_device);
1006 usb_serial_deregister(&clie_3_5_device);
1007 usb_serial_deregister(&clie_5_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008}
1009
1010
1011module_init(visor_init);
1012module_exit(visor_exit);
1013
Alan Coxd60d4392008-07-22 11:12:15 +01001014MODULE_AUTHOR(DRIVER_AUTHOR);
1015MODULE_DESCRIPTION(DRIVER_DESC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016MODULE_LICENSE("GPL");
1017
1018module_param(debug, bool, S_IRUGO | S_IWUSR);
1019MODULE_PARM_DESC(debug, "Debug enabled or not");
1020module_param(stats, bool, S_IRUGO | S_IWUSR);
1021MODULE_PARM_DESC(stats, "Enables statistics or not");
1022
1023module_param(vendor, ushort, 0);
1024MODULE_PARM_DESC(vendor, "User specified vendor ID");
1025module_param(product, ushort, 0);
1026MODULE_PARM_DESC(product, "User specified product ID");
1027