Commit | Line | Data |
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1da177e4 LT |
1 | /* vi: ts=8 sw=8 |
2 | * | |
3 | * TI 3410/5052 USB Serial Driver | |
4 | * | |
5 | * Copyright (C) 2004 Texas Instruments | |
6 | * | |
7 | * This driver is based on the Linux io_ti driver, which is | |
8 | * Copyright (C) 2000-2002 Inside Out Networks | |
9 | * Copyright (C) 2001-2002 Greg Kroah-Hartman | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * For questions or problems with this driver, contact Texas Instruments | |
17 | * technical support, or Al Borchers <alborchers@steinerpoint.com>, or | |
18 | * Peter Berger <pberger@brimson.com>. | |
1da177e4 LT |
19 | */ |
20 | ||
1da177e4 LT |
21 | #include <linux/kernel.h> |
22 | #include <linux/errno.h> | |
95da310e | 23 | #include <linux/firmware.h> |
1da177e4 LT |
24 | #include <linux/init.h> |
25 | #include <linux/slab.h> | |
26 | #include <linux/tty.h> | |
27 | #include <linux/tty_driver.h> | |
28 | #include <linux/tty_flip.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ioctl.h> | |
32 | #include <linux/serial.h> | |
074ef65a | 33 | #include <linux/kfifo.h> |
9da0068a | 34 | #include <linux/mutex.h> |
a30fa793 | 35 | #include <linux/uaccess.h> |
1da177e4 | 36 | #include <linux/usb.h> |
a969888c | 37 | #include <linux/usb/serial.h> |
1da177e4 | 38 | |
1da177e4 | 39 | #include "ti_usb_3410_5052.h" |
1da177e4 LT |
40 | |
41 | /* Defines */ | |
42 | ||
074ef65a | 43 | #define TI_DRIVER_VERSION "v0.10" |
1da177e4 LT |
44 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
45 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" | |
46 | ||
47 | #define TI_FIRMWARE_BUF_SIZE 16284 | |
48 | ||
49 | #define TI_WRITE_BUF_SIZE 1024 | |
50 | ||
51 | #define TI_TRANSFER_TIMEOUT 2 | |
52 | ||
1da177e4 LT |
53 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
54 | ||
55 | /* supported setserial flags */ | |
2400a2bf | 56 | #define TI_SET_SERIAL_FLAGS 0 |
1da177e4 LT |
57 | |
58 | /* read urb states */ | |
59 | #define TI_READ_URB_RUNNING 0 | |
60 | #define TI_READ_URB_STOPPING 1 | |
61 | #define TI_READ_URB_STOPPED 2 | |
62 | ||
63 | #define TI_EXTRA_VID_PID_COUNT 5 | |
64 | ||
65 | ||
66 | /* Structures */ | |
67 | ||
68 | struct ti_port { | |
69 | int tp_is_open; | |
70 | __u8 tp_msr; | |
71 | __u8 tp_lsr; | |
72 | __u8 tp_shadow_mcr; | |
73 | __u8 tp_uart_mode; /* 232 or 485 modes */ | |
74 | unsigned int tp_uart_base_addr; | |
75 | int tp_flags; | |
76 | int tp_closing_wait;/* in .01 secs */ | |
77 | struct async_icount tp_icount; | |
78 | wait_queue_head_t tp_msr_wait; /* wait for msr change */ | |
79 | wait_queue_head_t tp_write_wait; | |
80 | struct ti_device *tp_tdev; | |
81 | struct usb_serial_port *tp_port; | |
82 | spinlock_t tp_lock; | |
83 | int tp_read_urb_state; | |
84 | int tp_write_urb_in_use; | |
074ef65a | 85 | struct kfifo write_fifo; |
1da177e4 LT |
86 | }; |
87 | ||
88 | struct ti_device { | |
9da0068a | 89 | struct mutex td_open_close_lock; |
1da177e4 LT |
90 | int td_open_port_count; |
91 | struct usb_serial *td_serial; | |
92 | int td_is_3410; | |
93 | int td_urb_error; | |
94 | }; | |
95 | ||
96 | ||
97 | /* Function Declarations */ | |
98 | ||
99 | static int ti_startup(struct usb_serial *serial); | |
f9c99bb8 | 100 | static void ti_release(struct usb_serial *serial); |
a509a7e4 | 101 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
335f8514 | 102 | static void ti_close(struct usb_serial_port *port); |
95da310e | 103 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
a30fa793 | 104 | const unsigned char *data, int count); |
95da310e AC |
105 | static int ti_write_room(struct tty_struct *tty); |
106 | static int ti_chars_in_buffer(struct tty_struct *tty); | |
107 | static void ti_throttle(struct tty_struct *tty); | |
108 | static void ti_unthrottle(struct tty_struct *tty); | |
00a0d0d6 | 109 | static int ti_ioctl(struct tty_struct *tty, |
a30fa793 | 110 | unsigned int cmd, unsigned long arg); |
0bca1b91 AC |
111 | static int ti_get_icount(struct tty_struct *tty, |
112 | struct serial_icounter_struct *icount); | |
a30fa793 AC |
113 | static void ti_set_termios(struct tty_struct *tty, |
114 | struct usb_serial_port *port, struct ktermios *old_termios); | |
60b33c13 | 115 | static int ti_tiocmget(struct tty_struct *tty); |
20b9d177 | 116 | static int ti_tiocmset(struct tty_struct *tty, |
a30fa793 | 117 | unsigned int set, unsigned int clear); |
95da310e | 118 | static void ti_break(struct tty_struct *tty, int break_state); |
7d12e780 DH |
119 | static void ti_interrupt_callback(struct urb *urb); |
120 | static void ti_bulk_in_callback(struct urb *urb); | |
121 | static void ti_bulk_out_callback(struct urb *urb); | |
1da177e4 LT |
122 | |
123 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
124 | unsigned char *data, int length); | |
125 | static void ti_send(struct ti_port *tport); | |
126 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); | |
127 | static int ti_get_lsr(struct ti_port *tport); | |
128 | static int ti_get_serial_info(struct ti_port *tport, | |
129 | struct serial_struct __user *ret_arg); | |
4a90f09b | 130 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
131 | struct serial_struct __user *new_arg); |
132 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); | |
133 | ||
134 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush); | |
135 | ||
136 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); | |
137 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); | |
138 | ||
139 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
140 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
141 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
142 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
143 | ||
d53839cf GKH |
144 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
145 | unsigned long addr, __u8 mask, __u8 byte); | |
1da177e4 | 146 | |
05a3d905 | 147 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 148 | |
1da177e4 LT |
149 | |
150 | /* Data */ | |
151 | ||
152 | /* module parameters */ | |
90ab5ee9 | 153 | static bool debug; |
1da177e4 LT |
154 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
155 | static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; | |
64a6f950 | 156 | static unsigned int vendor_3410_count; |
1da177e4 | 157 | static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 158 | static unsigned int product_3410_count; |
1da177e4 | 159 | static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 160 | static unsigned int vendor_5052_count; |
1da177e4 | 161 | static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 162 | static unsigned int product_5052_count; |
1da177e4 LT |
163 | |
164 | /* supported devices */ | |
165 | /* the array dimension is the number of default entries plus */ | |
166 | /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ | |
167 | /* null entry */ | |
975dc33b | 168 | static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 169 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 170 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
171 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
172 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
173 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
174 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
175 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
176 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 179 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
180 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
181 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 182 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 183 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
184 | }; |
185 | ||
97dcf041 | 186 | static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 LT |
187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
188 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
189 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
190 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
191 | }; | |
192 | ||
975dc33b | 193 | static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 194 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 195 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
196 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
197 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
198 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
199 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
200 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
201 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
202 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
203 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
204 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
205 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
206 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
207 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 208 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
209 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
210 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 211 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 212 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
213 | { } |
214 | }; | |
215 | ||
ea65370d | 216 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 217 | .driver = { |
269bda1c GKH |
218 | .owner = THIS_MODULE, |
219 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 220 | }, |
269bda1c | 221 | .description = "TI USB 3410 1 port adapter", |
1da177e4 | 222 | .id_table = ti_id_table_3410, |
1da177e4 LT |
223 | .num_ports = 1, |
224 | .attach = ti_startup, | |
f9c99bb8 | 225 | .release = ti_release, |
1da177e4 LT |
226 | .open = ti_open, |
227 | .close = ti_close, | |
228 | .write = ti_write, | |
229 | .write_room = ti_write_room, | |
230 | .chars_in_buffer = ti_chars_in_buffer, | |
231 | .throttle = ti_throttle, | |
232 | .unthrottle = ti_unthrottle, | |
233 | .ioctl = ti_ioctl, | |
234 | .set_termios = ti_set_termios, | |
235 | .tiocmget = ti_tiocmget, | |
236 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 237 | .get_icount = ti_get_icount, |
1da177e4 LT |
238 | .break_ctl = ti_break, |
239 | .read_int_callback = ti_interrupt_callback, | |
240 | .read_bulk_callback = ti_bulk_in_callback, | |
241 | .write_bulk_callback = ti_bulk_out_callback, | |
242 | }; | |
243 | ||
ea65370d | 244 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 245 | .driver = { |
269bda1c GKH |
246 | .owner = THIS_MODULE, |
247 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 248 | }, |
269bda1c | 249 | .description = "TI USB 5052 2 port adapter", |
1da177e4 | 250 | .id_table = ti_id_table_5052, |
1da177e4 LT |
251 | .num_ports = 2, |
252 | .attach = ti_startup, | |
f9c99bb8 | 253 | .release = ti_release, |
1da177e4 LT |
254 | .open = ti_open, |
255 | .close = ti_close, | |
256 | .write = ti_write, | |
257 | .write_room = ti_write_room, | |
258 | .chars_in_buffer = ti_chars_in_buffer, | |
259 | .throttle = ti_throttle, | |
260 | .unthrottle = ti_unthrottle, | |
261 | .ioctl = ti_ioctl, | |
262 | .set_termios = ti_set_termios, | |
263 | .tiocmget = ti_tiocmget, | |
264 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 265 | .get_icount = ti_get_icount, |
1da177e4 LT |
266 | .break_ctl = ti_break, |
267 | .read_int_callback = ti_interrupt_callback, | |
268 | .read_bulk_callback = ti_bulk_in_callback, | |
269 | .write_bulk_callback = ti_bulk_out_callback, | |
270 | }; | |
271 | ||
29618e9f AS |
272 | static struct usb_serial_driver * const serial_drivers[] = { |
273 | &ti_1port_device, &ti_2port_device, NULL | |
274 | }; | |
1da177e4 LT |
275 | |
276 | /* Module */ | |
277 | ||
278 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); | |
279 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
280 | MODULE_VERSION(TI_DRIVER_VERSION); | |
281 | MODULE_LICENSE("GPL"); | |
282 | ||
5f24e2d6 DW |
283 | MODULE_FIRMWARE("ti_3410.fw"); |
284 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
285 | MODULE_FIRMWARE("mts_cdma.fw"); |
286 | MODULE_FIRMWARE("mts_gsm.fw"); | |
287 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
288 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
289 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
5f24e2d6 | 290 | |
1da177e4 LT |
291 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
292 | MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); | |
293 | ||
1da177e4 | 294 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
295 | MODULE_PARM_DESC(closing_wait, |
296 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 LT |
297 | |
298 | module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); | |
a30fa793 AC |
299 | MODULE_PARM_DESC(vendor_3410, |
300 | "Vendor ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 301 | module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); |
a30fa793 AC |
302 | MODULE_PARM_DESC(product_3410, |
303 | "Product ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 304 | module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); |
a30fa793 AC |
305 | MODULE_PARM_DESC(vendor_5052, |
306 | "Vendor ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 | 307 | module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); |
a30fa793 AC |
308 | MODULE_PARM_DESC(product_5052, |
309 | "Product ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 LT |
310 | |
311 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); | |
312 | ||
313 | ||
314 | /* Functions */ | |
315 | ||
316 | static int __init ti_init(void) | |
317 | { | |
05a3d905 | 318 | int i, j, c; |
1da177e4 LT |
319 | int ret; |
320 | ||
1da177e4 | 321 | /* insert extra vendor and product ids */ |
05a3d905 | 322 | c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; |
52950ed4 | 323 | j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 324 | for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { |
1da177e4 LT |
325 | ti_id_table_3410[j].idVendor = vendor_3410[i]; |
326 | ti_id_table_3410[j].idProduct = product_3410[i]; | |
327 | ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
328 | ti_id_table_combined[c].idVendor = vendor_3410[i]; |
329 | ti_id_table_combined[c].idProduct = product_3410[i]; | |
330 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 | 331 | } |
52950ed4 | 332 | j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 333 | for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { |
1da177e4 LT |
334 | ti_id_table_5052[j].idVendor = vendor_5052[i]; |
335 | ti_id_table_5052[j].idProduct = product_5052[i]; | |
336 | ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
337 | ti_id_table_combined[c].idVendor = vendor_5052[i]; |
338 | ti_id_table_combined[c].idProduct = product_5052[i]; | |
339 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 LT |
340 | } |
341 | ||
68e24113 | 342 | ret = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined); |
29618e9f AS |
343 | if (ret == 0) |
344 | printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":" | |
345 | TI_DRIVER_DESC "\n"); | |
1da177e4 LT |
346 | return ret; |
347 | } | |
348 | ||
1da177e4 LT |
349 | static void __exit ti_exit(void) |
350 | { | |
68e24113 | 351 | usb_serial_deregister_drivers(serial_drivers); |
1da177e4 LT |
352 | } |
353 | ||
1da177e4 LT |
354 | module_init(ti_init); |
355 | module_exit(ti_exit); | |
356 | ||
357 | ||
358 | static int ti_startup(struct usb_serial *serial) | |
359 | { | |
360 | struct ti_device *tdev; | |
361 | struct ti_port *tport; | |
362 | struct usb_device *dev = serial->dev; | |
363 | int status; | |
364 | int i; | |
365 | ||
366 | ||
d53839cf GKH |
367 | dev_dbg(&dev->dev, |
368 | "%s - product 0x%4X, num configurations %d, configuration value %d", | |
369 | __func__, le16_to_cpu(dev->descriptor.idProduct), | |
370 | dev->descriptor.bNumConfigurations, | |
371 | dev->actconfig->desc.bConfigurationValue); | |
1da177e4 LT |
372 | |
373 | /* create device structure */ | |
80b6ca48 | 374 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
1da177e4 | 375 | if (tdev == NULL) { |
441b62c1 | 376 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
377 | return -ENOMEM; |
378 | } | |
9da0068a | 379 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
380 | tdev->td_serial = serial; |
381 | usb_set_serial_data(serial, tdev); | |
382 | ||
383 | /* determine device type */ | |
384 | if (usb_match_id(serial->interface, ti_id_table_3410)) | |
385 | tdev->td_is_3410 = 1; | |
d53839cf GKH |
386 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
387 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 LT |
388 | |
389 | /* if we have only 1 configuration, download firmware */ | |
390 | if (dev->descriptor.bNumConfigurations == 1) { | |
72b27a07 AR |
391 | status = ti_download_firmware(tdev); |
392 | ||
393 | if (status != 0) | |
1da177e4 LT |
394 | goto free_tdev; |
395 | ||
396 | /* 3410 must be reset, 5052 resets itself */ | |
397 | if (tdev->td_is_3410) { | |
398 | msleep_interruptible(100); | |
399 | usb_reset_device(dev); | |
400 | } | |
401 | ||
402 | status = -ENODEV; | |
403 | goto free_tdev; | |
a30fa793 | 404 | } |
1da177e4 | 405 | |
413ba6fb | 406 | /* the second configuration must be set */ |
1da177e4 | 407 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
408 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
409 | status = status ? status : -ENODEV; | |
1da177e4 LT |
410 | goto free_tdev; |
411 | } | |
412 | ||
413 | /* set up port structures */ | |
414 | for (i = 0; i < serial->num_ports; ++i) { | |
7ac9da10 | 415 | tport = kzalloc(sizeof(struct ti_port), GFP_KERNEL); |
1da177e4 | 416 | if (tport == NULL) { |
441b62c1 | 417 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
418 | status = -ENOMEM; |
419 | goto free_tports; | |
420 | } | |
1da177e4 | 421 | spin_lock_init(&tport->tp_lock); |
a30fa793 AC |
422 | tport->tp_uart_base_addr = (i == 0 ? |
423 | TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); | |
1da177e4 LT |
424 | tport->tp_closing_wait = closing_wait; |
425 | init_waitqueue_head(&tport->tp_msr_wait); | |
426 | init_waitqueue_head(&tport->tp_write_wait); | |
074ef65a JH |
427 | if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, |
428 | GFP_KERNEL)) { | |
441b62c1 | 429 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
430 | kfree(tport); |
431 | status = -ENOMEM; | |
432 | goto free_tports; | |
433 | } | |
434 | tport->tp_port = serial->port[i]; | |
435 | tport->tp_tdev = tdev; | |
436 | usb_set_serial_port_data(serial->port[i], tport); | |
437 | tport->tp_uart_mode = 0; /* default is RS232 */ | |
438 | } | |
a30fa793 | 439 | |
1da177e4 LT |
440 | return 0; |
441 | ||
442 | free_tports: | |
a30fa793 | 443 | for (--i; i >= 0; --i) { |
1da177e4 | 444 | tport = usb_get_serial_port_data(serial->port[i]); |
074ef65a | 445 | kfifo_free(&tport->write_fifo); |
1da177e4 LT |
446 | kfree(tport); |
447 | usb_set_serial_port_data(serial->port[i], NULL); | |
448 | } | |
449 | free_tdev: | |
450 | kfree(tdev); | |
451 | usb_set_serial_data(serial, NULL); | |
452 | return status; | |
453 | } | |
454 | ||
455 | ||
f9c99bb8 | 456 | static void ti_release(struct usb_serial *serial) |
1da177e4 LT |
457 | { |
458 | int i; | |
459 | struct ti_device *tdev = usb_get_serial_data(serial); | |
460 | struct ti_port *tport; | |
461 | ||
a30fa793 | 462 | for (i = 0; i < serial->num_ports; ++i) { |
1da177e4 LT |
463 | tport = usb_get_serial_port_data(serial->port[i]); |
464 | if (tport) { | |
074ef65a | 465 | kfifo_free(&tport->write_fifo); |
1da177e4 | 466 | kfree(tport); |
1da177e4 LT |
467 | } |
468 | } | |
469 | ||
1bc3c9e1 | 470 | kfree(tdev); |
1da177e4 LT |
471 | } |
472 | ||
473 | ||
a509a7e4 | 474 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
475 | { |
476 | struct ti_port *tport = usb_get_serial_port_data(port); | |
477 | struct ti_device *tdev; | |
478 | struct usb_device *dev; | |
479 | struct urb *urb; | |
480 | int port_number; | |
481 | int status; | |
a30fa793 AC |
482 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
483 | TI_PIPE_TIMEOUT_ENABLE | | |
1da177e4 LT |
484 | (TI_TRANSFER_TIMEOUT << 2)); |
485 | ||
1da177e4 LT |
486 | if (tport == NULL) |
487 | return -ENODEV; | |
488 | ||
489 | dev = port->serial->dev; | |
490 | tdev = tport->tp_tdev; | |
491 | ||
492 | /* only one open on any port on a device at a time */ | |
9da0068a | 493 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
494 | return -ERESTARTSYS; |
495 | ||
1da177e4 LT |
496 | port_number = port->number - port->serial->minor; |
497 | ||
498 | memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); | |
499 | ||
500 | tport->tp_msr = 0; | |
501 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
502 | ||
503 | /* start interrupt urb the first time a port is opened on this device */ | |
504 | if (tdev->td_open_port_count == 0) { | |
d53839cf | 505 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
1da177e4 LT |
506 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
507 | if (!urb) { | |
d53839cf | 508 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
1da177e4 | 509 | status = -EINVAL; |
9da0068a | 510 | goto release_lock; |
1da177e4 | 511 | } |
1da177e4 | 512 | urb->context = tdev; |
1da177e4 LT |
513 | status = usb_submit_urb(urb, GFP_KERNEL); |
514 | if (status) { | |
d53839cf | 515 | dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
9da0068a | 516 | goto release_lock; |
1da177e4 LT |
517 | } |
518 | } | |
519 | ||
95da310e AC |
520 | if (tty) |
521 | ti_set_termios(tty, port, tty->termios); | |
1da177e4 | 522 | |
d53839cf | 523 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__); |
1da177e4 LT |
524 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
525 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
526 | if (status) { | |
a30fa793 | 527 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
d53839cf | 528 | __func__, status); |
1da177e4 LT |
529 | goto unlink_int_urb; |
530 | } | |
531 | ||
d53839cf | 532 | dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__); |
1da177e4 LT |
533 | status = ti_command_out_sync(tdev, TI_START_PORT, |
534 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
535 | if (status) { | |
a30fa793 AC |
536 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
537 | __func__, status); | |
1da177e4 LT |
538 | goto unlink_int_urb; |
539 | } | |
540 | ||
d53839cf | 541 | dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__); |
1da177e4 LT |
542 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
543 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
544 | if (status) { | |
a30fa793 AC |
545 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
546 | __func__, status); | |
1da177e4 LT |
547 | goto unlink_int_urb; |
548 | } | |
549 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
550 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
551 | if (status) { | |
a30fa793 AC |
552 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
553 | __func__, status); | |
1da177e4 LT |
554 | goto unlink_int_urb; |
555 | } | |
556 | ||
557 | /* reset the data toggle on the bulk endpoints to work around bug in | |
558 | * host controllers where things get out of sync some times */ | |
559 | usb_clear_halt(dev, port->write_urb->pipe); | |
560 | usb_clear_halt(dev, port->read_urb->pipe); | |
561 | ||
95da310e AC |
562 | if (tty) |
563 | ti_set_termios(tty, port, tty->termios); | |
1da177e4 | 564 | |
d53839cf | 565 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__); |
1da177e4 LT |
566 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
567 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
568 | if (status) { | |
a30fa793 AC |
569 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
570 | __func__, status); | |
1da177e4 LT |
571 | goto unlink_int_urb; |
572 | } | |
573 | ||
d53839cf | 574 | dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__); |
1da177e4 LT |
575 | status = ti_command_out_sync(tdev, TI_START_PORT, |
576 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
577 | if (status) { | |
a30fa793 AC |
578 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
579 | __func__, status); | |
1da177e4 LT |
580 | goto unlink_int_urb; |
581 | } | |
582 | ||
583 | /* start read urb */ | |
d53839cf | 584 | dev_dbg(&port->dev, "%s - start read urb\n", __func__); |
1da177e4 LT |
585 | urb = port->read_urb; |
586 | if (!urb) { | |
441b62c1 | 587 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
588 | status = -EINVAL; |
589 | goto unlink_int_urb; | |
590 | } | |
591 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1da177e4 | 592 | urb->context = tport; |
1da177e4 LT |
593 | status = usb_submit_urb(urb, GFP_KERNEL); |
594 | if (status) { | |
a30fa793 AC |
595 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
596 | __func__, status); | |
1da177e4 LT |
597 | goto unlink_int_urb; |
598 | } | |
599 | ||
600 | tport->tp_is_open = 1; | |
601 | ++tdev->td_open_port_count; | |
602 | ||
9da0068a | 603 | goto release_lock; |
1da177e4 LT |
604 | |
605 | unlink_int_urb: | |
606 | if (tdev->td_open_port_count == 0) | |
607 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
608 | release_lock: |
609 | mutex_unlock(&tdev->td_open_close_lock); | |
d53839cf | 610 | dev_dbg(&port->dev, "%s - exit %d\n", __func__, status); |
1da177e4 LT |
611 | return status; |
612 | } | |
613 | ||
614 | ||
335f8514 | 615 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
616 | { |
617 | struct ti_device *tdev; | |
618 | struct ti_port *tport; | |
619 | int port_number; | |
620 | int status; | |
9da0068a | 621 | int do_unlock; |
1da177e4 | 622 | |
1da177e4 LT |
623 | tdev = usb_get_serial_data(port->serial); |
624 | tport = usb_get_serial_port_data(port); | |
625 | if (tdev == NULL || tport == NULL) | |
626 | return; | |
627 | ||
628 | tport->tp_is_open = 0; | |
629 | ||
630 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1); | |
631 | ||
632 | usb_kill_urb(port->read_urb); | |
633 | usb_kill_urb(port->write_urb); | |
634 | tport->tp_write_urb_in_use = 0; | |
635 | ||
636 | port_number = port->number - port->serial->minor; | |
637 | ||
d53839cf | 638 | dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__); |
1da177e4 LT |
639 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
640 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
641 | if (status) | |
a30fa793 AC |
642 | dev_err(&port->dev, |
643 | "%s - cannot send close port command, %d\n" | |
644 | , __func__, status); | |
1da177e4 | 645 | |
9da0068a MK |
646 | /* if mutex_lock is interrupted, continue anyway */ |
647 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
648 | --tport->tp_tdev->td_open_port_count; |
649 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
650 | /* last port is closed, shut down interrupt urb */ | |
651 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
652 | tport->tp_tdev->td_open_port_count = 0; | |
653 | } | |
9da0068a MK |
654 | if (do_unlock) |
655 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
656 | } |
657 | ||
658 | ||
95da310e AC |
659 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
660 | const unsigned char *data, int count) | |
1da177e4 LT |
661 | { |
662 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 663 | |
1da177e4 | 664 | if (count == 0) { |
d53839cf | 665 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
666 | return 0; |
667 | } | |
668 | ||
669 | if (tport == NULL || !tport->tp_is_open) | |
670 | return -ENODEV; | |
671 | ||
074ef65a JH |
672 | count = kfifo_in_locked(&tport->write_fifo, data, count, |
673 | &tport->tp_lock); | |
1da177e4 LT |
674 | ti_send(tport); |
675 | ||
676 | return count; | |
677 | } | |
678 | ||
679 | ||
95da310e | 680 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 681 | { |
95da310e | 682 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
683 | struct ti_port *tport = usb_get_serial_port_data(port); |
684 | int room = 0; | |
685 | unsigned long flags; | |
686 | ||
1da177e4 | 687 | if (tport == NULL) |
23198fda | 688 | return 0; |
a30fa793 | 689 | |
1da177e4 | 690 | spin_lock_irqsave(&tport->tp_lock, flags); |
074ef65a | 691 | room = kfifo_avail(&tport->write_fifo); |
1da177e4 LT |
692 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
693 | ||
d53839cf | 694 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
695 | return room; |
696 | } | |
697 | ||
698 | ||
95da310e | 699 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 700 | { |
95da310e | 701 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
702 | struct ti_port *tport = usb_get_serial_port_data(port); |
703 | int chars = 0; | |
704 | unsigned long flags; | |
705 | ||
1da177e4 | 706 | if (tport == NULL) |
23198fda | 707 | return 0; |
1da177e4 LT |
708 | |
709 | spin_lock_irqsave(&tport->tp_lock, flags); | |
074ef65a | 710 | chars = kfifo_len(&tport->write_fifo); |
1da177e4 LT |
711 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
712 | ||
d53839cf | 713 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
714 | return chars; |
715 | } | |
716 | ||
717 | ||
95da310e | 718 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 719 | { |
95da310e | 720 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 721 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 722 | |
1da177e4 LT |
723 | if (tport == NULL) |
724 | return; | |
725 | ||
1da177e4 LT |
726 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
727 | ti_stop_read(tport, tty); | |
728 | ||
729 | } | |
730 | ||
731 | ||
95da310e | 732 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 733 | { |
95da310e | 734 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 735 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
736 | int status; |
737 | ||
1da177e4 LT |
738 | if (tport == NULL) |
739 | return; | |
740 | ||
1da177e4 LT |
741 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
742 | status = ti_restart_read(tport, tty); | |
743 | if (status) | |
a30fa793 AC |
744 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
745 | __func__, status); | |
1da177e4 LT |
746 | } |
747 | } | |
748 | ||
0bca1b91 AC |
749 | static int ti_get_icount(struct tty_struct *tty, |
750 | struct serial_icounter_struct *icount) | |
751 | { | |
752 | struct usb_serial_port *port = tty->driver_data; | |
753 | struct ti_port *tport = usb_get_serial_port_data(port); | |
754 | struct async_icount cnow = tport->tp_icount; | |
755 | ||
d53839cf | 756 | dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__, |
0bca1b91 AC |
757 | cnow.rx, cnow.tx); |
758 | ||
759 | icount->cts = cnow.cts; | |
760 | icount->dsr = cnow.dsr; | |
761 | icount->rng = cnow.rng; | |
762 | icount->dcd = cnow.dcd; | |
763 | icount->rx = cnow.rx; | |
764 | icount->tx = cnow.tx; | |
765 | icount->frame = cnow.frame; | |
766 | icount->overrun = cnow.overrun; | |
767 | icount->parity = cnow.parity; | |
768 | icount->brk = cnow.brk; | |
769 | icount->buf_overrun = cnow.buf_overrun; | |
770 | ||
771 | return 0; | |
772 | } | |
1da177e4 | 773 | |
00a0d0d6 | 774 | static int ti_ioctl(struct tty_struct *tty, |
1da177e4 LT |
775 | unsigned int cmd, unsigned long arg) |
776 | { | |
95da310e | 777 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
778 | struct ti_port *tport = usb_get_serial_port_data(port); |
779 | struct async_icount cnow; | |
780 | struct async_icount cprev; | |
781 | ||
d53839cf | 782 | dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); |
1da177e4 LT |
783 | |
784 | if (tport == NULL) | |
785 | return -ENODEV; | |
786 | ||
787 | switch (cmd) { | |
a30fa793 | 788 | case TIOCGSERIAL: |
d53839cf | 789 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
a30fa793 AC |
790 | return ti_get_serial_info(tport, |
791 | (struct serial_struct __user *)arg); | |
792 | case TIOCSSERIAL: | |
d53839cf | 793 | dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); |
4a90f09b AC |
794 | return ti_set_serial_info(tty, tport, |
795 | (struct serial_struct __user *)arg); | |
a30fa793 | 796 | case TIOCMIWAIT: |
d53839cf | 797 | dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); |
a30fa793 AC |
798 | cprev = tport->tp_icount; |
799 | while (1) { | |
800 | interruptible_sleep_on(&tport->tp_msr_wait); | |
801 | if (signal_pending(current)) | |
802 | return -ERESTARTSYS; | |
803 | cnow = tport->tp_icount; | |
804 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
805 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
806 | return -EIO; /* no change => error */ | |
807 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
808 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
809 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
810 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) | |
811 | return 0; | |
812 | cprev = cnow; | |
813 | } | |
814 | break; | |
1da177e4 | 815 | } |
1da177e4 LT |
816 | return -ENOIOCTLCMD; |
817 | } | |
818 | ||
819 | ||
95da310e AC |
820 | static void ti_set_termios(struct tty_struct *tty, |
821 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
822 | { |
823 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 824 | struct ti_uart_config *config; |
a30fa793 | 825 | tcflag_t cflag, iflag; |
1da177e4 LT |
826 | int baud; |
827 | int status; | |
828 | int port_number = port->number - port->serial->minor; | |
829 | unsigned int mcr; | |
830 | ||
1da177e4 LT |
831 | cflag = tty->termios->c_cflag; |
832 | iflag = tty->termios->c_iflag; | |
833 | ||
d53839cf GKH |
834 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
835 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, | |
836 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
837 | |
838 | if (tport == NULL) | |
839 | return; | |
840 | ||
841 | config = kmalloc(sizeof(*config), GFP_KERNEL); | |
842 | if (!config) { | |
441b62c1 | 843 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
844 | return; |
845 | } | |
846 | ||
847 | config->wFlags = 0; | |
848 | ||
849 | /* these flags must be set */ | |
850 | config->wFlags |= TI_UART_ENABLE_MS_INTS; | |
851 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; | |
852 | config->bUartMode = (__u8)(tport->tp_uart_mode); | |
853 | ||
854 | switch (cflag & CSIZE) { | |
a30fa793 AC |
855 | case CS5: |
856 | config->bDataBits = TI_UART_5_DATA_BITS; | |
857 | break; | |
858 | case CS6: | |
859 | config->bDataBits = TI_UART_6_DATA_BITS; | |
860 | break; | |
861 | case CS7: | |
862 | config->bDataBits = TI_UART_7_DATA_BITS; | |
863 | break; | |
864 | default: | |
865 | case CS8: | |
866 | config->bDataBits = TI_UART_8_DATA_BITS; | |
867 | break; | |
1da177e4 LT |
868 | } |
869 | ||
537699ef AC |
870 | /* CMSPAR isn't supported by this driver */ |
871 | tty->termios->c_cflag &= ~CMSPAR; | |
872 | ||
1da177e4 LT |
873 | if (cflag & PARENB) { |
874 | if (cflag & PARODD) { | |
875 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
876 | config->bParity = TI_UART_ODD_PARITY; | |
877 | } else { | |
878 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
879 | config->bParity = TI_UART_EVEN_PARITY; | |
880 | } | |
881 | } else { | |
882 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; | |
a30fa793 | 883 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
884 | } |
885 | ||
886 | if (cflag & CSTOPB) | |
887 | config->bStopBits = TI_UART_2_STOP_BITS; | |
888 | else | |
889 | config->bStopBits = TI_UART_1_STOP_BITS; | |
890 | ||
891 | if (cflag & CRTSCTS) { | |
892 | /* RTS flow control must be off to drop RTS for baud rate B0 */ | |
893 | if ((cflag & CBAUD) != B0) | |
894 | config->wFlags |= TI_UART_ENABLE_RTS_IN; | |
895 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; | |
896 | } else { | |
897 | tty->hw_stopped = 0; | |
898 | ti_restart_read(tport, tty); | |
899 | } | |
900 | ||
901 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
902 | config->cXon = START_CHAR(tty); | |
903 | config->cXoff = STOP_CHAR(tty); | |
904 | ||
905 | if (I_IXOFF(tty)) | |
906 | config->wFlags |= TI_UART_ENABLE_X_IN; | |
907 | else | |
908 | ti_restart_read(tport, tty); | |
909 | ||
910 | if (I_IXON(tty)) | |
911 | config->wFlags |= TI_UART_ENABLE_X_OUT; | |
912 | } | |
913 | ||
914 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
915 | if (!baud) |
916 | baud = 9600; | |
1da177e4 LT |
917 | if (tport->tp_tdev->td_is_3410) |
918 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); | |
919 | else | |
920 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); | |
921 | ||
537699ef AC |
922 | /* FIXME: Should calculate resulting baud here and report it back */ |
923 | if ((cflag & CBAUD) != B0) | |
924 | tty_encode_baud_rate(tty, baud, baud); | |
925 | ||
d53839cf GKH |
926 | dev_dbg(&port->dev, |
927 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", | |
928 | __func__, baud, config->wBaudRate, config->wFlags, | |
929 | config->bDataBits, config->bParity, config->bStopBits, | |
930 | config->cXon, config->cXoff, config->bUartMode); | |
1da177e4 LT |
931 | |
932 | cpu_to_be16s(&config->wBaudRate); | |
933 | cpu_to_be16s(&config->wFlags); | |
934 | ||
935 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
936 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
937 | sizeof(*config)); | |
938 | if (status) | |
a30fa793 AC |
939 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
940 | __func__, port_number, status); | |
1da177e4 LT |
941 | |
942 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
943 | mcr = tport->tp_shadow_mcr; | |
944 | /* if baud rate is B0, clear RTS and DTR */ | |
945 | if ((cflag & CBAUD) == B0) | |
946 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); | |
947 | status = ti_set_mcr(tport, mcr); | |
948 | if (status) | |
a30fa793 AC |
949 | dev_err(&port->dev, |
950 | "%s - cannot set modem control on port %d, %d\n", | |
951 | __func__, port_number, status); | |
1da177e4 LT |
952 | |
953 | kfree(config); | |
954 | } | |
955 | ||
956 | ||
60b33c13 | 957 | static int ti_tiocmget(struct tty_struct *tty) |
1da177e4 | 958 | { |
95da310e | 959 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
960 | struct ti_port *tport = usb_get_serial_port_data(port); |
961 | unsigned int result; | |
962 | unsigned int msr; | |
963 | unsigned int mcr; | |
04ca89d4 | 964 | unsigned long flags; |
1da177e4 | 965 | |
1da177e4 LT |
966 | if (tport == NULL) |
967 | return -ENODEV; | |
968 | ||
04ca89d4 | 969 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
970 | msr = tport->tp_msr; |
971 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 972 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
973 | |
974 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
975 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
976 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
977 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
978 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
979 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
980 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
981 | ||
d53839cf | 982 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
1da177e4 LT |
983 | |
984 | return result; | |
985 | } | |
986 | ||
987 | ||
20b9d177 AC |
988 | static int ti_tiocmset(struct tty_struct *tty, |
989 | unsigned int set, unsigned int clear) | |
1da177e4 | 990 | { |
95da310e | 991 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
992 | struct ti_port *tport = usb_get_serial_port_data(port); |
993 | unsigned int mcr; | |
04ca89d4 | 994 | unsigned long flags; |
1da177e4 | 995 | |
1da177e4 LT |
996 | if (tport == NULL) |
997 | return -ENODEV; | |
998 | ||
04ca89d4 | 999 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1000 | mcr = tport->tp_shadow_mcr; |
1001 | ||
1002 | if (set & TIOCM_RTS) | |
1003 | mcr |= TI_MCR_RTS; | |
1004 | if (set & TIOCM_DTR) | |
1005 | mcr |= TI_MCR_DTR; | |
1006 | if (set & TIOCM_LOOP) | |
1007 | mcr |= TI_MCR_LOOP; | |
1008 | ||
1009 | if (clear & TIOCM_RTS) | |
1010 | mcr &= ~TI_MCR_RTS; | |
1011 | if (clear & TIOCM_DTR) | |
1012 | mcr &= ~TI_MCR_DTR; | |
1013 | if (clear & TIOCM_LOOP) | |
1014 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 1015 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1016 | |
1017 | return ti_set_mcr(tport, mcr); | |
1018 | } | |
1019 | ||
1020 | ||
95da310e | 1021 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 1022 | { |
95da310e | 1023 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1024 | struct ti_port *tport = usb_get_serial_port_data(port); |
1025 | int status; | |
1026 | ||
d53839cf | 1027 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
1da177e4 LT |
1028 | |
1029 | if (tport == NULL) | |
1030 | return; | |
1031 | ||
1032 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0); | |
1033 | ||
d53839cf | 1034 | status = ti_write_byte(port, tport->tp_tdev, |
1da177e4 LT |
1035 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
1036 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
1037 | ||
1038 | if (status) | |
d53839cf | 1039 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
1da177e4 LT |
1040 | } |
1041 | ||
1042 | ||
7d12e780 | 1043 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 1044 | { |
cdc97792 | 1045 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
1046 | struct usb_serial_port *port; |
1047 | struct usb_serial *serial = tdev->td_serial; | |
1048 | struct ti_port *tport; | |
1049 | struct device *dev = &urb->dev->dev; | |
1050 | unsigned char *data = urb->transfer_buffer; | |
1051 | int length = urb->actual_length; | |
1052 | int port_number; | |
1053 | int function; | |
52171b48 GKH |
1054 | int status = urb->status; |
1055 | int retval; | |
1da177e4 LT |
1056 | __u8 msr; |
1057 | ||
52171b48 | 1058 | switch (status) { |
1da177e4 LT |
1059 | case 0: |
1060 | break; | |
1061 | case -ECONNRESET: | |
1062 | case -ENOENT: | |
1063 | case -ESHUTDOWN: | |
d53839cf | 1064 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1065 | tdev->td_urb_error = 1; |
1066 | return; | |
1067 | default: | |
d53839cf | 1068 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
1da177e4 LT |
1069 | tdev->td_urb_error = 1; |
1070 | goto exit; | |
1071 | } | |
1072 | ||
1073 | if (length != 2) { | |
d53839cf | 1074 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
1da177e4 LT |
1075 | goto exit; |
1076 | } | |
1077 | ||
1078 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 1079 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
1080 | goto exit; |
1081 | } | |
1082 | ||
1083 | port_number = TI_GET_PORT_FROM_CODE(data[0]); | |
1084 | function = TI_GET_FUNC_FROM_CODE(data[0]); | |
1085 | ||
d53839cf GKH |
1086 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
1087 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
1088 | |
1089 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
1090 | dev_err(dev, "%s - bad port number, %d\n", |
1091 | __func__, port_number); | |
1da177e4 LT |
1092 | goto exit; |
1093 | } | |
1094 | ||
1095 | port = serial->port[port_number]; | |
1096 | ||
1097 | tport = usb_get_serial_port_data(port); | |
1098 | if (!tport) | |
1099 | goto exit; | |
1100 | ||
1101 | switch (function) { | |
1102 | case TI_CODE_DATA_ERROR: | |
a30fa793 | 1103 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
d53839cf | 1104 | __func__, port_number, data[1]); |
1da177e4 LT |
1105 | break; |
1106 | ||
1107 | case TI_CODE_MODEM_STATUS: | |
1108 | msr = data[1]; | |
d53839cf | 1109 | dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
1da177e4 LT |
1110 | ti_handle_new_msr(tport, msr); |
1111 | break; | |
1112 | ||
1113 | default: | |
a30fa793 AC |
1114 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
1115 | __func__, data[1]); | |
1da177e4 LT |
1116 | break; |
1117 | } | |
1118 | ||
1119 | exit: | |
52171b48 GKH |
1120 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1121 | if (retval) | |
1122 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1123 | __func__, retval); |
1da177e4 LT |
1124 | } |
1125 | ||
1126 | ||
7d12e780 | 1127 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1128 | { |
cdc97792 | 1129 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1130 | struct usb_serial_port *port = tport->tp_port; |
1131 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1132 | int status = urb->status; |
1133 | int retval = 0; | |
4a90f09b | 1134 | struct tty_struct *tty; |
1da177e4 | 1135 | |
52171b48 | 1136 | switch (status) { |
1da177e4 LT |
1137 | case 0: |
1138 | break; | |
1139 | case -ECONNRESET: | |
1140 | case -ENOENT: | |
1141 | case -ESHUTDOWN: | |
d53839cf | 1142 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1143 | tport->tp_tdev->td_urb_error = 1; |
1144 | wake_up_interruptible(&tport->tp_write_wait); | |
1145 | return; | |
1146 | default: | |
52171b48 | 1147 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1148 | __func__, status); |
1da177e4 LT |
1149 | tport->tp_tdev->td_urb_error = 1; |
1150 | wake_up_interruptible(&tport->tp_write_wait); | |
1151 | } | |
1152 | ||
52171b48 | 1153 | if (status == -EPIPE) |
1da177e4 LT |
1154 | goto exit; |
1155 | ||
52171b48 | 1156 | if (status) { |
441b62c1 | 1157 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1158 | return; |
1159 | } | |
1160 | ||
4a90f09b | 1161 | tty = tty_port_tty_get(&port->port); |
cf545093 AC |
1162 | if (tty) { |
1163 | if (urb->actual_length) { | |
59d33f2f GKH |
1164 | usb_serial_debug_data(dev, __func__, urb->actual_length, |
1165 | urb->transfer_buffer); | |
cf545093 AC |
1166 | |
1167 | if (!tport->tp_is_open) | |
d53839cf | 1168 | dev_dbg(dev, "%s - port closed, dropping data\n", |
cf545093 AC |
1169 | __func__); |
1170 | else | |
1171 | ti_recv(&urb->dev->dev, tty, | |
a30fa793 AC |
1172 | urb->transfer_buffer, |
1173 | urb->actual_length); | |
cf545093 AC |
1174 | spin_lock(&tport->tp_lock); |
1175 | tport->tp_icount.rx += urb->actual_length; | |
1176 | spin_unlock(&tport->tp_lock); | |
1177 | } | |
4a90f09b | 1178 | tty_kref_put(tty); |
1da177e4 LT |
1179 | } |
1180 | ||
1181 | exit: | |
1182 | /* continue to read unless stopping */ | |
1183 | spin_lock(&tport->tp_lock); | |
5833041f | 1184 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
52171b48 | 1185 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1186 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
1da177e4 | 1187 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
5833041f | 1188 | |
1da177e4 | 1189 | spin_unlock(&tport->tp_lock); |
52171b48 GKH |
1190 | if (retval) |
1191 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1192 | __func__, retval); |
1da177e4 LT |
1193 | } |
1194 | ||
1195 | ||
7d12e780 | 1196 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1197 | { |
cdc97792 | 1198 | struct ti_port *tport = urb->context; |
1da177e4 | 1199 | struct usb_serial_port *port = tport->tp_port; |
52171b48 | 1200 | int status = urb->status; |
1da177e4 | 1201 | |
1da177e4 LT |
1202 | tport->tp_write_urb_in_use = 0; |
1203 | ||
52171b48 | 1204 | switch (status) { |
1da177e4 LT |
1205 | case 0: |
1206 | break; | |
1207 | case -ECONNRESET: | |
1208 | case -ENOENT: | |
1209 | case -ESHUTDOWN: | |
d53839cf | 1210 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1211 | tport->tp_tdev->td_urb_error = 1; |
1212 | wake_up_interruptible(&tport->tp_write_wait); | |
1213 | return; | |
1214 | default: | |
22a416c4 | 1215 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
441b62c1 | 1216 | __func__, status); |
1da177e4 LT |
1217 | tport->tp_tdev->td_urb_error = 1; |
1218 | wake_up_interruptible(&tport->tp_write_wait); | |
1219 | } | |
1220 | ||
1221 | /* send any buffered data */ | |
1222 | ti_send(tport); | |
1223 | } | |
1224 | ||
1225 | ||
1226 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
1227 | unsigned char *data, int length) | |
1228 | { | |
1229 | int cnt; | |
1230 | ||
1231 | do { | |
a108bfcb | 1232 | cnt = tty_insert_flip_string(tty, data, length); |
33f0f88f | 1233 | if (cnt < length) { |
a30fa793 AC |
1234 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |
1235 | __func__, length - cnt); | |
1236 | if (cnt == 0) | |
33f0f88f | 1237 | break; |
1da177e4 | 1238 | } |
33f0f88f | 1239 | tty_flip_buffer_push(tty); |
1da177e4 LT |
1240 | data += cnt; |
1241 | length -= cnt; | |
1242 | } while (length > 0); | |
1243 | ||
1da177e4 LT |
1244 | } |
1245 | ||
1246 | ||
1247 | static void ti_send(struct ti_port *tport) | |
1248 | { | |
1249 | int count, result; | |
1250 | struct usb_serial_port *port = tport->tp_port; | |
4a90f09b | 1251 | struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */ |
1da177e4 LT |
1252 | unsigned long flags; |
1253 | ||
1da177e4 LT |
1254 | spin_lock_irqsave(&tport->tp_lock, flags); |
1255 | ||
4a90f09b AC |
1256 | if (tport->tp_write_urb_in_use) |
1257 | goto unlock; | |
1da177e4 | 1258 | |
074ef65a | 1259 | count = kfifo_out(&tport->write_fifo, |
1da177e4 LT |
1260 | port->write_urb->transfer_buffer, |
1261 | port->bulk_out_size); | |
1262 | ||
4a90f09b AC |
1263 | if (count == 0) |
1264 | goto unlock; | |
1da177e4 LT |
1265 | |
1266 | tport->tp_write_urb_in_use = 1; | |
1267 | ||
1268 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1269 | ||
59d33f2f GKH |
1270 | usb_serial_debug_data(&port->dev, __func__, count, |
1271 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1272 | |
1273 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1274 | usb_sndbulkpipe(port->serial->dev, | |
1275 | port->bulk_out_endpointAddress), | |
1276 | port->write_urb->transfer_buffer, count, | |
1277 | ti_bulk_out_callback, tport); | |
1278 | ||
1279 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1280 | if (result) { | |
22a416c4 | 1281 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
a30fa793 AC |
1282 | __func__, result); |
1283 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1284 | /* TODO: reschedule ti_send */ |
1285 | } else { | |
1286 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1287 | tport->tp_icount.tx += count; | |
1288 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1289 | } | |
1290 | ||
1291 | /* more room in the buffer for new writes, wakeup */ | |
1292 | if (tty) | |
1293 | tty_wakeup(tty); | |
4a90f09b | 1294 | tty_kref_put(tty); |
1da177e4 | 1295 | wake_up_interruptible(&tport->tp_write_wait); |
4a90f09b AC |
1296 | return; |
1297 | unlock: | |
1298 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1299 | tty_kref_put(tty); | |
1300 | return; | |
1da177e4 LT |
1301 | } |
1302 | ||
1303 | ||
1304 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1305 | { | |
04ca89d4 | 1306 | unsigned long flags; |
1da177e4 LT |
1307 | int status; |
1308 | ||
d53839cf | 1309 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
1da177e4 LT |
1310 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
1311 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1312 | ||
04ca89d4 | 1313 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1314 | if (!status) |
1315 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1316 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1317 | |
1318 | return status; | |
1319 | } | |
1320 | ||
1321 | ||
1322 | static int ti_get_lsr(struct ti_port *tport) | |
1323 | { | |
a30fa793 | 1324 | int size, status; |
1da177e4 LT |
1325 | struct ti_device *tdev = tport->tp_tdev; |
1326 | struct usb_serial_port *port = tport->tp_port; | |
1327 | int port_number = port->number - port->serial->minor; | |
1328 | struct ti_port_status *data; | |
1329 | ||
1da177e4 LT |
1330 | size = sizeof(struct ti_port_status); |
1331 | data = kmalloc(size, GFP_KERNEL); | |
1332 | if (!data) { | |
441b62c1 | 1333 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1334 | return -ENOMEM; |
1335 | } | |
1336 | ||
1337 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1338 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1339 | if (status) { | |
a30fa793 AC |
1340 | dev_err(&port->dev, |
1341 | "%s - get port status command failed, %d\n", | |
1342 | __func__, status); | |
1da177e4 LT |
1343 | goto free_data; |
1344 | } | |
1345 | ||
d53839cf | 1346 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
1da177e4 LT |
1347 | |
1348 | tport->tp_lsr = data->bLSR; | |
1349 | ||
1350 | free_data: | |
1351 | kfree(data); | |
1352 | return status; | |
1353 | } | |
1354 | ||
1355 | ||
1356 | static int ti_get_serial_info(struct ti_port *tport, | |
1357 | struct serial_struct __user *ret_arg) | |
1358 | { | |
1359 | struct usb_serial_port *port = tport->tp_port; | |
1360 | struct serial_struct ret_serial; | |
1361 | ||
1362 | if (!ret_arg) | |
1363 | return -EFAULT; | |
1364 | ||
1365 | memset(&ret_serial, 0, sizeof(ret_serial)); | |
1366 | ||
1367 | ret_serial.type = PORT_16550A; | |
1368 | ret_serial.line = port->serial->minor; | |
1369 | ret_serial.port = port->number - port->serial->minor; | |
1370 | ret_serial.flags = tport->tp_flags; | |
1371 | ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; | |
1372 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; | |
1373 | ret_serial.closing_wait = tport->tp_closing_wait; | |
1374 | ||
1375 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1376 | return -EFAULT; | |
1377 | ||
1378 | return 0; | |
1379 | } | |
1380 | ||
1381 | ||
4a90f09b | 1382 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1383 | struct serial_struct __user *new_arg) |
1384 | { | |
1da177e4 LT |
1385 | struct serial_struct new_serial; |
1386 | ||
1387 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1388 | return -EFAULT; | |
1389 | ||
1390 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; | |
1da177e4 LT |
1391 | tport->tp_closing_wait = new_serial.closing_wait; |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | ||
1397 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) | |
1398 | { | |
1399 | struct async_icount *icount; | |
1400 | struct tty_struct *tty; | |
1401 | unsigned long flags; | |
1402 | ||
d53839cf | 1403 | dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
1da177e4 LT |
1404 | |
1405 | if (msr & TI_MSR_DELTA_MASK) { | |
1406 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1407 | icount = &tport->tp_icount; | |
1408 | if (msr & TI_MSR_DELTA_CTS) | |
1409 | icount->cts++; | |
1410 | if (msr & TI_MSR_DELTA_DSR) | |
1411 | icount->dsr++; | |
1412 | if (msr & TI_MSR_DELTA_CD) | |
1413 | icount->dcd++; | |
1414 | if (msr & TI_MSR_DELTA_RI) | |
1415 | icount->rng++; | |
1416 | wake_up_interruptible(&tport->tp_msr_wait); | |
1417 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1418 | } | |
1419 | ||
1420 | tport->tp_msr = msr & TI_MSR_MASK; | |
1421 | ||
1422 | /* handle CTS flow control */ | |
4a90f09b | 1423 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 LT |
1424 | if (tty && C_CRTSCTS(tty)) { |
1425 | if (msr & TI_MSR_CTS) { | |
1426 | tty->hw_stopped = 0; | |
1427 | tty_wakeup(tty); | |
1428 | } else { | |
1429 | tty->hw_stopped = 1; | |
1430 | } | |
1431 | } | |
4a90f09b | 1432 | tty_kref_put(tty); |
1da177e4 LT |
1433 | } |
1434 | ||
1435 | ||
1436 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) | |
1437 | { | |
1438 | struct ti_device *tdev = tport->tp_tdev; | |
1439 | struct usb_serial_port *port = tport->tp_port; | |
1440 | wait_queue_t wait; | |
1da177e4 | 1441 | |
0915f490 | 1442 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1443 | |
1444 | /* wait for data to drain from the buffer */ | |
1445 | tdev->td_urb_error = 0; | |
1446 | init_waitqueue_entry(&wait, current); | |
1447 | add_wait_queue(&tport->tp_write_wait, &wait); | |
1448 | for (;;) { | |
1449 | set_current_state(TASK_INTERRUPTIBLE); | |
074ef65a | 1450 | if (kfifo_len(&tport->write_fifo) == 0 |
1da177e4 LT |
1451 | || timeout == 0 || signal_pending(current) |
1452 | || tdev->td_urb_error | |
0915f490 | 1453 | || port->serial->disconnected) /* disconnect */ |
1da177e4 | 1454 | break; |
0915f490 | 1455 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1456 | timeout = schedule_timeout(timeout); |
0915f490 | 1457 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1458 | } |
1459 | set_current_state(TASK_RUNNING); | |
1460 | remove_wait_queue(&tport->tp_write_wait, &wait); | |
1461 | ||
1462 | /* flush any remaining data in the buffer */ | |
1463 | if (flush) | |
074ef65a | 1464 | kfifo_reset_out(&tport->write_fifo); |
1da177e4 | 1465 | |
0915f490 | 1466 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1467 | |
0915f490 | 1468 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 LT |
1469 | /* wait for data to drain from the device */ |
1470 | /* wait for empty tx register, plus 20 ms */ | |
1471 | timeout += jiffies; | |
1472 | tport->tp_lsr &= ~TI_LSR_TX_EMPTY; | |
1473 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
1474 | && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error | |
0915f490 | 1475 | && !port->serial->disconnected) { |
1da177e4 LT |
1476 | if (ti_get_lsr(tport)) |
1477 | break; | |
0915f490 | 1478 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 | 1479 | msleep_interruptible(20); |
0915f490 | 1480 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 | 1481 | } |
0915f490 | 1482 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 LT |
1483 | } |
1484 | ||
1485 | ||
1486 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) | |
1487 | { | |
1488 | unsigned long flags; | |
1489 | ||
1490 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1491 | ||
1492 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1493 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1494 | ||
1495 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1496 | } | |
1497 | ||
1498 | ||
1499 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1500 | { | |
1501 | struct urb *urb; | |
1502 | int status = 0; | |
1503 | unsigned long flags; | |
1504 | ||
1505 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1506 | ||
1507 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1508 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1509 | urb = tport->tp_port->read_urb; |
944dc184 | 1510 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 1511 | urb->context = tport; |
1da177e4 | 1512 | status = usb_submit_urb(urb, GFP_KERNEL); |
944dc184 ON |
1513 | } else { |
1514 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1515 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1516 | } |
1da177e4 LT |
1517 | |
1518 | return status; | |
1519 | } | |
1520 | ||
1521 | ||
1522 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1523 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1524 | { | |
1525 | int status; | |
1526 | ||
1527 | status = usb_control_msg(tdev->td_serial->dev, | |
1528 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1529 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1530 | value, moduleid, data, size, 1000); | |
1531 | ||
1532 | if (status == size) | |
1533 | status = 0; | |
1534 | ||
1535 | if (status > 0) | |
1536 | status = -ECOMM; | |
1537 | ||
1538 | return status; | |
1539 | } | |
1540 | ||
1541 | ||
1542 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
1543 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1544 | { | |
1545 | int status; | |
1546 | ||
1547 | status = usb_control_msg(tdev->td_serial->dev, | |
1548 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1549 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
1550 | value, moduleid, data, size, 1000); | |
1551 | ||
1552 | if (status == size) | |
1553 | status = 0; | |
1554 | ||
1555 | if (status > 0) | |
1556 | status = -ECOMM; | |
1557 | ||
1558 | return status; | |
1559 | } | |
1560 | ||
1561 | ||
d53839cf GKH |
1562 | static int ti_write_byte(struct usb_serial_port *port, |
1563 | struct ti_device *tdev, unsigned long addr, | |
1564 | __u8 mask, __u8 byte) | |
1da177e4 LT |
1565 | { |
1566 | int status; | |
1567 | unsigned int size; | |
1568 | struct ti_write_data_bytes *data; | |
1da177e4 | 1569 | |
d53839cf GKH |
1570 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
1571 | addr, mask, byte); | |
1da177e4 LT |
1572 | |
1573 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1574 | data = kmalloc(size, GFP_KERNEL); | |
1575 | if (!data) { | |
d53839cf | 1576 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1577 | return -ENOMEM; |
1578 | } | |
1579 | ||
1580 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1581 | data->bDataType = TI_RW_DATA_BYTE; | |
1582 | data->bDataCounter = 1; | |
1583 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1584 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1585 | data->bData[0] = mask; | |
1586 | data->bData[1] = byte; | |
1587 | ||
1588 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1589 | (__u8 *)data, size); | |
1590 | ||
1591 | if (status < 0) | |
d53839cf | 1592 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1593 | |
1594 | kfree(data); | |
1595 | ||
1596 | return status; | |
1597 | } | |
1598 | ||
95da310e AC |
1599 | static int ti_do_download(struct usb_device *dev, int pipe, |
1600 | u8 *buffer, int size) | |
1da177e4 | 1601 | { |
1da177e4 | 1602 | int pos; |
95da310e | 1603 | u8 cs = 0; |
1da177e4 | 1604 | int done; |
1da177e4 | 1605 | struct ti_firmware_header *header; |
87ea8c88 | 1606 | int status = 0; |
95da310e | 1607 | int len; |
a30fa793 AC |
1608 | |
1609 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
1da177e4 LT |
1610 | cs = (__u8)(cs + buffer[pos]); |
1611 | ||
1612 | header = (struct ti_firmware_header *)buffer; | |
a30fa793 | 1613 | header->wLength = cpu_to_le16((__u16)(size |
95da310e | 1614 | - sizeof(struct ti_firmware_header))); |
1da177e4 LT |
1615 | header->bCheckSum = cs; |
1616 | ||
d53839cf | 1617 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
95da310e AC |
1618 | for (pos = 0; pos < size; pos += done) { |
1619 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1620 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1621 | &done, 1000); | |
1da177e4 LT |
1622 | if (status) |
1623 | break; | |
1624 | } | |
95da310e AC |
1625 | return status; |
1626 | } | |
1da177e4 | 1627 | |
05a3d905 | 1628 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1629 | { |
05a3d905 | 1630 | int status; |
95da310e AC |
1631 | int buffer_size; |
1632 | __u8 *buffer; | |
1633 | struct usb_device *dev = tdev->td_serial->dev; | |
1634 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1635 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1636 | const struct firmware *fw_p; | |
1637 | char buf[32]; | |
1da177e4 | 1638 | |
05a3d905 CA |
1639 | /* try ID specific firmware first, then try generic firmware */ |
1640 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, | |
1641 | dev->descriptor.idProduct); | |
72b27a07 AR |
1642 | status = request_firmware(&fw_p, buf, &dev->dev); |
1643 | ||
1644 | if (status != 0) { | |
cb7a7c6a CA |
1645 | buf[0] = '\0'; |
1646 | if (dev->descriptor.idVendor == MTS_VENDOR_ID) { | |
1647 | switch (dev->descriptor.idProduct) { | |
1648 | case MTS_CDMA_PRODUCT_ID: | |
1649 | strcpy(buf, "mts_cdma.fw"); | |
1650 | break; | |
1651 | case MTS_GSM_PRODUCT_ID: | |
1652 | strcpy(buf, "mts_gsm.fw"); | |
1653 | break; | |
1654 | case MTS_EDGE_PRODUCT_ID: | |
1655 | strcpy(buf, "mts_edge.fw"); | |
1656 | break; | |
cdc04834 AM |
1657 | case MTS_MT9234MU_PRODUCT_ID: |
1658 | strcpy(buf, "mts_mt9234mu.fw"); | |
1659 | break; | |
1660 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1661 | strcpy(buf, "mts_mt9234zba.fw"); | |
1662 | break; | |
1663 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1664 | strcpy(buf, "mts_mt9234zba.fw"); | |
1665 | break; } | |
cb7a7c6a CA |
1666 | } |
1667 | if (buf[0] == '\0') { | |
1668 | if (tdev->td_is_3410) | |
1669 | strcpy(buf, "ti_3410.fw"); | |
1670 | else | |
1671 | strcpy(buf, "ti_5052.fw"); | |
1672 | } | |
05a3d905 CA |
1673 | status = request_firmware(&fw_p, buf, &dev->dev); |
1674 | } | |
1675 | if (status) { | |
95da310e AC |
1676 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1677 | return -ENOENT; | |
1678 | } | |
1679 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1680 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
357f45db | 1681 | release_firmware(fw_p); |
95da310e AC |
1682 | return -ENOENT; |
1683 | } | |
1684 | ||
1685 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1686 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1687 | if (buffer) { | |
1688 | memcpy(buffer, fw_p->data, fw_p->size); | |
1689 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1690 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1691 | kfree(buffer); |
05a3d905 | 1692 | } else { |
d53839cf | 1693 | dev_dbg(&dev->dev, "%s ENOMEM\n", __func__); |
05a3d905 | 1694 | status = -ENOMEM; |
95da310e AC |
1695 | } |
1696 | release_firmware(fw_p); | |
1da177e4 | 1697 | if (status) { |
a30fa793 AC |
1698 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1699 | __func__, status); | |
1da177e4 LT |
1700 | return status; |
1701 | } | |
1702 | ||
d53839cf | 1703 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
1da177e4 LT |
1704 | |
1705 | return 0; | |
1706 | } |