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Commit | Line | Data |
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8bf344d7 | 1 | /* |
1da177e4 LT |
2 | * TI 3410/5052 USB Serial Driver |
3 | * | |
4 | * Copyright (C) 2004 Texas Instruments | |
5 | * | |
6 | * This driver is based on the Linux io_ti driver, which is | |
7 | * Copyright (C) 2000-2002 Inside Out Networks | |
8 | * Copyright (C) 2001-2002 Greg Kroah-Hartman | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * For questions or problems with this driver, contact Texas Instruments | |
16 | * technical support, or Al Borchers <alborchers@steinerpoint.com>, or | |
17 | * Peter Berger <pberger@brimson.com>. | |
1da177e4 LT |
18 | */ |
19 | ||
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/errno.h> | |
95da310e | 22 | #include <linux/firmware.h> |
1da177e4 LT |
23 | #include <linux/slab.h> |
24 | #include <linux/tty.h> | |
25 | #include <linux/tty_driver.h> | |
26 | #include <linux/tty_flip.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/spinlock.h> | |
29 | #include <linux/ioctl.h> | |
30 | #include <linux/serial.h> | |
074ef65a | 31 | #include <linux/kfifo.h> |
9da0068a | 32 | #include <linux/mutex.h> |
a30fa793 | 33 | #include <linux/uaccess.h> |
1da177e4 | 34 | #include <linux/usb.h> |
a969888c | 35 | #include <linux/usb/serial.h> |
1da177e4 | 36 | |
4ab0e0da MO |
37 | /* Configuration ids */ |
38 | #define TI_BOOT_CONFIG 1 | |
39 | #define TI_ACTIVE_CONFIG 2 | |
40 | ||
41 | /* Vendor and product ids */ | |
42 | #define TI_VENDOR_ID 0x0451 | |
43 | #define IBM_VENDOR_ID 0x04b3 | |
44 | #define TI_3410_PRODUCT_ID 0x3410 | |
45 | #define IBM_4543_PRODUCT_ID 0x4543 | |
46 | #define IBM_454B_PRODUCT_ID 0x454b | |
47 | #define IBM_454C_PRODUCT_ID 0x454c | |
48 | #define TI_3410_EZ430_ID 0xF430 /* TI ez430 development tool */ | |
49 | #define TI_5052_BOOT_PRODUCT_ID 0x5052 /* no EEPROM, no firmware */ | |
50 | #define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */ | |
51 | #define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */ | |
52 | #define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */ | |
53 | #define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */ | |
54 | ||
55 | /* Multi-Tech vendor and product ids */ | |
56 | #define MTS_VENDOR_ID 0x06E0 | |
57 | #define MTS_GSM_NO_FW_PRODUCT_ID 0xF108 | |
58 | #define MTS_CDMA_NO_FW_PRODUCT_ID 0xF109 | |
59 | #define MTS_CDMA_PRODUCT_ID 0xF110 | |
60 | #define MTS_GSM_PRODUCT_ID 0xF111 | |
61 | #define MTS_EDGE_PRODUCT_ID 0xF112 | |
62 | #define MTS_MT9234MU_PRODUCT_ID 0xF114 | |
63 | #define MTS_MT9234ZBA_PRODUCT_ID 0xF115 | |
64 | #define MTS_MT9234ZBAOLD_PRODUCT_ID 0x0319 | |
65 | ||
66 | /* Abbott Diabetics vendor and product ids */ | |
67 | #define ABBOTT_VENDOR_ID 0x1a61 | |
68 | #define ABBOTT_STEREO_PLUG_ID 0x3410 | |
69 | #define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID | |
70 | #define ABBOTT_STRIP_PORT_ID 0x3420 | |
71 | ||
72 | /* Honeywell vendor and product IDs */ | |
73 | #define HONEYWELL_VENDOR_ID 0x10ac | |
74 | #define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */ | |
75 | ||
76 | /* Moxa UPORT 11x0 vendor and product IDs */ | |
77 | #define MXU1_VENDOR_ID 0x110a | |
78 | #define MXU1_1110_PRODUCT_ID 0x1110 | |
79 | #define MXU1_1130_PRODUCT_ID 0x1130 | |
80 | #define MXU1_1150_PRODUCT_ID 0x1150 | |
81 | #define MXU1_1151_PRODUCT_ID 0x1151 | |
82 | #define MXU1_1131_PRODUCT_ID 0x1131 | |
83 | ||
84 | /* Commands */ | |
85 | #define TI_GET_VERSION 0x01 | |
86 | #define TI_GET_PORT_STATUS 0x02 | |
87 | #define TI_GET_PORT_DEV_INFO 0x03 | |
88 | #define TI_GET_CONFIG 0x04 | |
89 | #define TI_SET_CONFIG 0x05 | |
90 | #define TI_OPEN_PORT 0x06 | |
91 | #define TI_CLOSE_PORT 0x07 | |
92 | #define TI_START_PORT 0x08 | |
93 | #define TI_STOP_PORT 0x09 | |
94 | #define TI_TEST_PORT 0x0A | |
95 | #define TI_PURGE_PORT 0x0B | |
96 | #define TI_RESET_EXT_DEVICE 0x0C | |
97 | #define TI_WRITE_DATA 0x80 | |
98 | #define TI_READ_DATA 0x81 | |
99 | #define TI_REQ_TYPE_CLASS 0x82 | |
100 | ||
101 | /* Module identifiers */ | |
102 | #define TI_I2C_PORT 0x01 | |
103 | #define TI_IEEE1284_PORT 0x02 | |
104 | #define TI_UART1_PORT 0x03 | |
105 | #define TI_UART2_PORT 0x04 | |
106 | #define TI_RAM_PORT 0x05 | |
107 | ||
108 | /* Modem status */ | |
109 | #define TI_MSR_DELTA_CTS 0x01 | |
110 | #define TI_MSR_DELTA_DSR 0x02 | |
111 | #define TI_MSR_DELTA_RI 0x04 | |
112 | #define TI_MSR_DELTA_CD 0x08 | |
113 | #define TI_MSR_CTS 0x10 | |
114 | #define TI_MSR_DSR 0x20 | |
115 | #define TI_MSR_RI 0x40 | |
116 | #define TI_MSR_CD 0x80 | |
117 | #define TI_MSR_DELTA_MASK 0x0F | |
118 | #define TI_MSR_MASK 0xF0 | |
119 | ||
120 | /* Line status */ | |
121 | #define TI_LSR_OVERRUN_ERROR 0x01 | |
122 | #define TI_LSR_PARITY_ERROR 0x02 | |
123 | #define TI_LSR_FRAMING_ERROR 0x04 | |
124 | #define TI_LSR_BREAK 0x08 | |
125 | #define TI_LSR_ERROR 0x0F | |
126 | #define TI_LSR_RX_FULL 0x10 | |
127 | #define TI_LSR_TX_EMPTY 0x20 | |
128 | ||
129 | /* Line control */ | |
130 | #define TI_LCR_BREAK 0x40 | |
131 | ||
132 | /* Modem control */ | |
133 | #define TI_MCR_LOOP 0x04 | |
134 | #define TI_MCR_DTR 0x10 | |
135 | #define TI_MCR_RTS 0x20 | |
136 | ||
137 | /* Mask settings */ | |
138 | #define TI_UART_ENABLE_RTS_IN 0x0001 | |
139 | #define TI_UART_DISABLE_RTS 0x0002 | |
140 | #define TI_UART_ENABLE_PARITY_CHECKING 0x0008 | |
141 | #define TI_UART_ENABLE_DSR_OUT 0x0010 | |
142 | #define TI_UART_ENABLE_CTS_OUT 0x0020 | |
143 | #define TI_UART_ENABLE_X_OUT 0x0040 | |
144 | #define TI_UART_ENABLE_XA_OUT 0x0080 | |
145 | #define TI_UART_ENABLE_X_IN 0x0100 | |
146 | #define TI_UART_ENABLE_DTR_IN 0x0800 | |
147 | #define TI_UART_DISABLE_DTR 0x1000 | |
148 | #define TI_UART_ENABLE_MS_INTS 0x2000 | |
149 | #define TI_UART_ENABLE_AUTO_START_DMA 0x4000 | |
150 | ||
151 | /* Parity */ | |
152 | #define TI_UART_NO_PARITY 0x00 | |
153 | #define TI_UART_ODD_PARITY 0x01 | |
154 | #define TI_UART_EVEN_PARITY 0x02 | |
155 | #define TI_UART_MARK_PARITY 0x03 | |
156 | #define TI_UART_SPACE_PARITY 0x04 | |
157 | ||
158 | /* Stop bits */ | |
159 | #define TI_UART_1_STOP_BITS 0x00 | |
160 | #define TI_UART_1_5_STOP_BITS 0x01 | |
161 | #define TI_UART_2_STOP_BITS 0x02 | |
162 | ||
163 | /* Bits per character */ | |
164 | #define TI_UART_5_DATA_BITS 0x00 | |
165 | #define TI_UART_6_DATA_BITS 0x01 | |
166 | #define TI_UART_7_DATA_BITS 0x02 | |
167 | #define TI_UART_8_DATA_BITS 0x03 | |
168 | ||
169 | /* 232/485 modes */ | |
170 | #define TI_UART_232 0x00 | |
171 | #define TI_UART_485_RECEIVER_DISABLED 0x01 | |
172 | #define TI_UART_485_RECEIVER_ENABLED 0x02 | |
173 | ||
174 | /* Pipe transfer mode and timeout */ | |
175 | #define TI_PIPE_MODE_CONTINUOUS 0x01 | |
176 | #define TI_PIPE_MODE_MASK 0x03 | |
177 | #define TI_PIPE_TIMEOUT_MASK 0x7C | |
178 | #define TI_PIPE_TIMEOUT_ENABLE 0x80 | |
179 | ||
180 | /* Config struct */ | |
181 | struct ti_uart_config { | |
f1054b2d MO |
182 | __be16 wBaudRate; |
183 | __be16 wFlags; | |
184 | u8 bDataBits; | |
185 | u8 bParity; | |
186 | u8 bStopBits; | |
4ab0e0da MO |
187 | char cXon; |
188 | char cXoff; | |
f1054b2d | 189 | u8 bUartMode; |
4ab0e0da MO |
190 | } __packed; |
191 | ||
192 | /* Get port status */ | |
193 | struct ti_port_status { | |
f1054b2d MO |
194 | u8 bCmdCode; |
195 | u8 bModuleId; | |
196 | u8 bErrorCode; | |
197 | u8 bMSR; | |
198 | u8 bLSR; | |
4ab0e0da MO |
199 | } __packed; |
200 | ||
201 | /* Purge modes */ | |
202 | #define TI_PURGE_OUTPUT 0x00 | |
203 | #define TI_PURGE_INPUT 0x80 | |
204 | ||
205 | /* Read/Write data */ | |
206 | #define TI_RW_DATA_ADDR_SFR 0x10 | |
207 | #define TI_RW_DATA_ADDR_IDATA 0x20 | |
208 | #define TI_RW_DATA_ADDR_XDATA 0x30 | |
209 | #define TI_RW_DATA_ADDR_CODE 0x40 | |
210 | #define TI_RW_DATA_ADDR_GPIO 0x50 | |
211 | #define TI_RW_DATA_ADDR_I2C 0x60 | |
212 | #define TI_RW_DATA_ADDR_FLASH 0x70 | |
213 | #define TI_RW_DATA_ADDR_DSP 0x80 | |
214 | ||
215 | #define TI_RW_DATA_UNSPECIFIED 0x00 | |
216 | #define TI_RW_DATA_BYTE 0x01 | |
217 | #define TI_RW_DATA_WORD 0x02 | |
218 | #define TI_RW_DATA_DOUBLE_WORD 0x04 | |
219 | ||
220 | struct ti_write_data_bytes { | |
f1054b2d MO |
221 | u8 bAddrType; |
222 | u8 bDataType; | |
223 | u8 bDataCounter; | |
4ab0e0da MO |
224 | __be16 wBaseAddrHi; |
225 | __be16 wBaseAddrLo; | |
f1054b2d | 226 | u8 bData[0]; |
4ab0e0da MO |
227 | } __packed; |
228 | ||
229 | struct ti_read_data_request { | |
230 | __u8 bAddrType; | |
231 | __u8 bDataType; | |
232 | __u8 bDataCounter; | |
233 | __be16 wBaseAddrHi; | |
234 | __be16 wBaseAddrLo; | |
235 | } __packed; | |
236 | ||
237 | struct ti_read_data_bytes { | |
238 | __u8 bCmdCode; | |
239 | __u8 bModuleId; | |
240 | __u8 bErrorCode; | |
241 | __u8 bData[0]; | |
242 | } __packed; | |
243 | ||
244 | /* Interrupt struct */ | |
245 | struct ti_interrupt { | |
246 | __u8 bICode; | |
247 | __u8 bIInfo; | |
248 | } __packed; | |
249 | ||
250 | /* Interrupt codes */ | |
4ab0e0da MO |
251 | #define TI_CODE_HARDWARE_ERROR 0xFF |
252 | #define TI_CODE_DATA_ERROR 0x03 | |
253 | #define TI_CODE_MODEM_STATUS 0x04 | |
254 | ||
255 | /* Download firmware max packet size */ | |
256 | #define TI_DOWNLOAD_MAX_PACKET_SIZE 64 | |
257 | ||
258 | /* Firmware image header */ | |
259 | struct ti_firmware_header { | |
260 | __le16 wLength; | |
f1054b2d | 261 | u8 bCheckSum; |
4ab0e0da MO |
262 | } __packed; |
263 | ||
264 | /* UART addresses */ | |
265 | #define TI_UART1_BASE_ADDR 0xFFA0 /* UART 1 base address */ | |
266 | #define TI_UART2_BASE_ADDR 0xFFB0 /* UART 2 base address */ | |
267 | #define TI_UART_OFFSET_LCR 0x0002 /* UART MCR register offset */ | |
268 | #define TI_UART_OFFSET_MCR 0x0004 /* UART MCR register offset */ | |
1da177e4 | 269 | |
1da177e4 LT |
270 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
271 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" | |
272 | ||
273 | #define TI_FIRMWARE_BUF_SIZE 16284 | |
274 | ||
1da177e4 LT |
275 | #define TI_TRANSFER_TIMEOUT 2 |
276 | ||
1da177e4 LT |
277 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
278 | ||
1da177e4 LT |
279 | /* read urb states */ |
280 | #define TI_READ_URB_RUNNING 0 | |
281 | #define TI_READ_URB_STOPPING 1 | |
282 | #define TI_READ_URB_STOPPED 2 | |
283 | ||
284 | #define TI_EXTRA_VID_PID_COUNT 5 | |
285 | ||
1da177e4 LT |
286 | struct ti_port { |
287 | int tp_is_open; | |
f1054b2d MO |
288 | u8 tp_msr; |
289 | u8 tp_shadow_mcr; | |
290 | u8 tp_uart_mode; /* 232 or 485 modes */ | |
1da177e4 | 291 | unsigned int tp_uart_base_addr; |
1da177e4 LT |
292 | struct ti_device *tp_tdev; |
293 | struct usb_serial_port *tp_port; | |
294 | spinlock_t tp_lock; | |
295 | int tp_read_urb_state; | |
296 | int tp_write_urb_in_use; | |
1da177e4 LT |
297 | }; |
298 | ||
299 | struct ti_device { | |
9da0068a | 300 | struct mutex td_open_close_lock; |
1da177e4 LT |
301 | int td_open_port_count; |
302 | struct usb_serial *td_serial; | |
303 | int td_is_3410; | |
b923c6c6 | 304 | bool td_rs485_only; |
1da177e4 LT |
305 | }; |
306 | ||
1da177e4 | 307 | static int ti_startup(struct usb_serial *serial); |
f9c99bb8 | 308 | static void ti_release(struct usb_serial *serial); |
51ef847d JH |
309 | static int ti_port_probe(struct usb_serial_port *port); |
310 | static int ti_port_remove(struct usb_serial_port *port); | |
a509a7e4 | 311 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
335f8514 | 312 | static void ti_close(struct usb_serial_port *port); |
95da310e | 313 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
a30fa793 | 314 | const unsigned char *data, int count); |
95da310e AC |
315 | static int ti_write_room(struct tty_struct *tty); |
316 | static int ti_chars_in_buffer(struct tty_struct *tty); | |
ff93b19e | 317 | static bool ti_tx_empty(struct usb_serial_port *port); |
95da310e AC |
318 | static void ti_throttle(struct tty_struct *tty); |
319 | static void ti_unthrottle(struct tty_struct *tty); | |
00a0d0d6 | 320 | static int ti_ioctl(struct tty_struct *tty, |
a30fa793 AC |
321 | unsigned int cmd, unsigned long arg); |
322 | static void ti_set_termios(struct tty_struct *tty, | |
323 | struct usb_serial_port *port, struct ktermios *old_termios); | |
60b33c13 | 324 | static int ti_tiocmget(struct tty_struct *tty); |
20b9d177 | 325 | static int ti_tiocmset(struct tty_struct *tty, |
a30fa793 | 326 | unsigned int set, unsigned int clear); |
95da310e | 327 | static void ti_break(struct tty_struct *tty, int break_state); |
7d12e780 DH |
328 | static void ti_interrupt_callback(struct urb *urb); |
329 | static void ti_bulk_in_callback(struct urb *urb); | |
330 | static void ti_bulk_out_callback(struct urb *urb); | |
1da177e4 | 331 | |
2e124b4a JS |
332 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
333 | int length); | |
1da177e4 LT |
334 | static void ti_send(struct ti_port *tport); |
335 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); | |
b5784f7d | 336 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr); |
1da177e4 LT |
337 | static int ti_get_serial_info(struct ti_port *tport, |
338 | struct serial_struct __user *ret_arg); | |
4a90f09b | 339 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 | 340 | struct serial_struct __user *new_arg); |
f1054b2d | 341 | static void ti_handle_new_msr(struct ti_port *tport, u8 msr); |
1da177e4 | 342 | |
1da177e4 LT |
343 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); |
344 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); | |
345 | ||
346 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
347 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
348 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
349 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
350 | ||
d53839cf | 351 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
f1054b2d | 352 | unsigned long addr, u8 mask, u8 byte); |
1da177e4 | 353 | |
05a3d905 | 354 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 355 | |
1da177e4 | 356 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
1da177e4 | 357 | |
5c6b98dd | 358 | static const struct usb_device_id ti_id_table_3410[] = { |
1da177e4 | 359 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 360 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
361 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
362 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
363 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
364 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
365 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
366 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
367 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
368 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 369 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
370 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
371 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
35a2fbc9 AH |
372 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) }, |
373 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, | |
975dc33b | 374 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1bcb49e6 | 375 | { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
b923c6c6 MO |
376 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) }, |
377 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) }, | |
378 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) }, | |
379 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) }, | |
380 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) }, | |
d7ece651 | 381 | { } /* terminator */ |
1da177e4 LT |
382 | }; |
383 | ||
5c6b98dd | 384 | static const struct usb_device_id ti_id_table_5052[] = { |
1da177e4 LT |
385 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
386 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
387 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
388 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
8bf344d7 | 389 | { } |
1da177e4 LT |
390 | }; |
391 | ||
5c6b98dd | 392 | static const struct usb_device_id ti_id_table_combined[] = { |
1da177e4 | 393 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 394 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
395 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
396 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
397 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
398 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
399 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
400 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
401 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
402 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
403 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
404 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
405 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
406 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 407 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
408 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
409 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 410 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
c9d09dc7 | 411 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
975dc33b | 412 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1bcb49e6 | 413 | { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
b923c6c6 MO |
414 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) }, |
415 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) }, | |
416 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) }, | |
417 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) }, | |
418 | { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) }, | |
d7ece651 | 419 | { } /* terminator */ |
1da177e4 LT |
420 | }; |
421 | ||
ea65370d | 422 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 423 | .driver = { |
269bda1c GKH |
424 | .owner = THIS_MODULE, |
425 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 426 | }, |
269bda1c | 427 | .description = "TI USB 3410 1 port adapter", |
1da177e4 | 428 | .id_table = ti_id_table_3410, |
1da177e4 LT |
429 | .num_ports = 1, |
430 | .attach = ti_startup, | |
f9c99bb8 | 431 | .release = ti_release, |
51ef847d JH |
432 | .port_probe = ti_port_probe, |
433 | .port_remove = ti_port_remove, | |
1da177e4 LT |
434 | .open = ti_open, |
435 | .close = ti_close, | |
436 | .write = ti_write, | |
437 | .write_room = ti_write_room, | |
438 | .chars_in_buffer = ti_chars_in_buffer, | |
ff93b19e | 439 | .tx_empty = ti_tx_empty, |
1da177e4 LT |
440 | .throttle = ti_throttle, |
441 | .unthrottle = ti_unthrottle, | |
442 | .ioctl = ti_ioctl, | |
443 | .set_termios = ti_set_termios, | |
444 | .tiocmget = ti_tiocmget, | |
445 | .tiocmset = ti_tiocmset, | |
6c75e260 | 446 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
783ca355 | 447 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
448 | .break_ctl = ti_break, |
449 | .read_int_callback = ti_interrupt_callback, | |
450 | .read_bulk_callback = ti_bulk_in_callback, | |
451 | .write_bulk_callback = ti_bulk_out_callback, | |
452 | }; | |
453 | ||
ea65370d | 454 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 455 | .driver = { |
269bda1c GKH |
456 | .owner = THIS_MODULE, |
457 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 458 | }, |
269bda1c | 459 | .description = "TI USB 5052 2 port adapter", |
1da177e4 | 460 | .id_table = ti_id_table_5052, |
1da177e4 LT |
461 | .num_ports = 2, |
462 | .attach = ti_startup, | |
f9c99bb8 | 463 | .release = ti_release, |
51ef847d JH |
464 | .port_probe = ti_port_probe, |
465 | .port_remove = ti_port_remove, | |
1da177e4 LT |
466 | .open = ti_open, |
467 | .close = ti_close, | |
468 | .write = ti_write, | |
469 | .write_room = ti_write_room, | |
470 | .chars_in_buffer = ti_chars_in_buffer, | |
ff93b19e | 471 | .tx_empty = ti_tx_empty, |
1da177e4 LT |
472 | .throttle = ti_throttle, |
473 | .unthrottle = ti_unthrottle, | |
474 | .ioctl = ti_ioctl, | |
475 | .set_termios = ti_set_termios, | |
476 | .tiocmget = ti_tiocmget, | |
477 | .tiocmset = ti_tiocmset, | |
6c75e260 | 478 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
783ca355 | 479 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
480 | .break_ctl = ti_break, |
481 | .read_int_callback = ti_interrupt_callback, | |
482 | .read_bulk_callback = ti_bulk_in_callback, | |
483 | .write_bulk_callback = ti_bulk_out_callback, | |
484 | }; | |
485 | ||
29618e9f AS |
486 | static struct usb_serial_driver * const serial_drivers[] = { |
487 | &ti_1port_device, &ti_2port_device, NULL | |
488 | }; | |
1da177e4 | 489 | |
1da177e4 LT |
490 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); |
491 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
1da177e4 LT |
492 | MODULE_LICENSE("GPL"); |
493 | ||
5f24e2d6 DW |
494 | MODULE_FIRMWARE("ti_3410.fw"); |
495 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
496 | MODULE_FIRMWARE("mts_cdma.fw"); |
497 | MODULE_FIRMWARE("mts_gsm.fw"); | |
498 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
499 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
500 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
b923c6c6 MO |
501 | MODULE_FIRMWARE("moxa/moxa-1110.fw"); |
502 | MODULE_FIRMWARE("moxa/moxa-1130.fw"); | |
503 | MODULE_FIRMWARE("moxa/moxa-1131.fw"); | |
504 | MODULE_FIRMWARE("moxa/moxa-1150.fw"); | |
505 | MODULE_FIRMWARE("moxa/moxa-1151.fw"); | |
5f24e2d6 | 506 | |
1da177e4 | 507 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
508 | MODULE_PARM_DESC(closing_wait, |
509 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 | 510 | |
1da177e4 LT |
511 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); |
512 | ||
d7ece651 | 513 | module_usb_serial_driver(serial_drivers, ti_id_table_combined); |
1da177e4 | 514 | |
1da177e4 LT |
515 | static int ti_startup(struct usb_serial *serial) |
516 | { | |
517 | struct ti_device *tdev; | |
1da177e4 | 518 | struct usb_device *dev = serial->dev; |
b923c6c6 MO |
519 | struct usb_host_interface *cur_altsetting; |
520 | int num_endpoints; | |
521 | u16 vid, pid; | |
1da177e4 | 522 | int status; |
1da177e4 | 523 | |
d53839cf | 524 | dev_dbg(&dev->dev, |
d9a38a87 | 525 | "%s - product 0x%4X, num configurations %d, configuration value %d\n", |
d53839cf GKH |
526 | __func__, le16_to_cpu(dev->descriptor.idProduct), |
527 | dev->descriptor.bNumConfigurations, | |
528 | dev->actconfig->desc.bConfigurationValue); | |
1da177e4 | 529 | |
80b6ca48 | 530 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
10c642d0 | 531 | if (!tdev) |
1da177e4 | 532 | return -ENOMEM; |
10c642d0 | 533 | |
9da0068a | 534 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
535 | tdev->td_serial = serial; |
536 | usb_set_serial_data(serial, tdev); | |
537 | ||
538 | /* determine device type */ | |
1fad5642 | 539 | if (serial->type == &ti_1port_device) |
1da177e4 | 540 | tdev->td_is_3410 = 1; |
d53839cf GKH |
541 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
542 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 | 543 | |
b923c6c6 MO |
544 | vid = le16_to_cpu(dev->descriptor.idVendor); |
545 | pid = le16_to_cpu(dev->descriptor.idProduct); | |
546 | if (vid == MXU1_VENDOR_ID) { | |
547 | switch (pid) { | |
548 | case MXU1_1130_PRODUCT_ID: | |
549 | case MXU1_1131_PRODUCT_ID: | |
550 | tdev->td_rs485_only = true; | |
551 | break; | |
552 | } | |
553 | } | |
554 | ||
555 | cur_altsetting = serial->interface->cur_altsetting; | |
556 | num_endpoints = cur_altsetting->desc.bNumEndpoints; | |
557 | ||
558 | /* if we have only 1 configuration and 1 endpoint, download firmware */ | |
559 | if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) { | |
72b27a07 AR |
560 | status = ti_download_firmware(tdev); |
561 | ||
562 | if (status != 0) | |
1da177e4 LT |
563 | goto free_tdev; |
564 | ||
565 | /* 3410 must be reset, 5052 resets itself */ | |
566 | if (tdev->td_is_3410) { | |
567 | msleep_interruptible(100); | |
568 | usb_reset_device(dev); | |
569 | } | |
570 | ||
571 | status = -ENODEV; | |
572 | goto free_tdev; | |
a30fa793 | 573 | } |
1da177e4 | 574 | |
413ba6fb | 575 | /* the second configuration must be set */ |
1da177e4 | 576 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
577 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
578 | status = status ? status : -ENODEV; | |
1da177e4 LT |
579 | goto free_tdev; |
580 | } | |
581 | ||
ef079936 JH |
582 | if (serial->num_bulk_in < serial->num_ports || |
583 | serial->num_bulk_out < serial->num_ports) { | |
584 | dev_err(&serial->interface->dev, "missing endpoints\n"); | |
585 | status = -ENODEV; | |
586 | goto free_tdev; | |
587 | } | |
588 | ||
1da177e4 LT |
589 | return 0; |
590 | ||
1da177e4 LT |
591 | free_tdev: |
592 | kfree(tdev); | |
593 | usb_set_serial_data(serial, NULL); | |
594 | return status; | |
595 | } | |
596 | ||
597 | ||
f9c99bb8 | 598 | static void ti_release(struct usb_serial *serial) |
1da177e4 | 599 | { |
1da177e4 | 600 | struct ti_device *tdev = usb_get_serial_data(serial); |
51ef847d JH |
601 | |
602 | kfree(tdev); | |
603 | } | |
604 | ||
605 | static int ti_port_probe(struct usb_serial_port *port) | |
606 | { | |
1da177e4 LT |
607 | struct ti_port *tport; |
608 | ||
51ef847d JH |
609 | tport = kzalloc(sizeof(*tport), GFP_KERNEL); |
610 | if (!tport) | |
611 | return -ENOMEM; | |
612 | ||
613 | spin_lock_init(&tport->tp_lock); | |
614 | if (port == port->serial->port[0]) | |
615 | tport->tp_uart_base_addr = TI_UART1_BASE_ADDR; | |
616 | else | |
617 | tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; | |
f1175daa | 618 | port->port.closing_wait = msecs_to_jiffies(10 * closing_wait); |
51ef847d JH |
619 | tport->tp_port = port; |
620 | tport->tp_tdev = usb_get_serial_data(port->serial); | |
b923c6c6 MO |
621 | |
622 | if (tport->tp_tdev->td_rs485_only) | |
623 | tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED; | |
624 | else | |
625 | tport->tp_uart_mode = TI_UART_232; | |
1da177e4 | 626 | |
51ef847d JH |
627 | usb_set_serial_port_data(port, tport); |
628 | ||
d7be6221 JH |
629 | port->port.drain_delay = 3; |
630 | ||
51ef847d | 631 | return 0; |
1da177e4 LT |
632 | } |
633 | ||
51ef847d JH |
634 | static int ti_port_remove(struct usb_serial_port *port) |
635 | { | |
636 | struct ti_port *tport; | |
637 | ||
638 | tport = usb_get_serial_port_data(port); | |
51ef847d JH |
639 | kfree(tport); |
640 | ||
641 | return 0; | |
642 | } | |
1da177e4 | 643 | |
a509a7e4 | 644 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
645 | { |
646 | struct ti_port *tport = usb_get_serial_port_data(port); | |
647 | struct ti_device *tdev; | |
648 | struct usb_device *dev; | |
649 | struct urb *urb; | |
650 | int port_number; | |
651 | int status; | |
f1054b2d MO |
652 | u16 open_settings; |
653 | ||
654 | open_settings = (TI_PIPE_MODE_CONTINUOUS | | |
655 | TI_PIPE_TIMEOUT_ENABLE | | |
656 | (TI_TRANSFER_TIMEOUT << 2)); | |
1da177e4 | 657 | |
1da177e4 LT |
658 | dev = port->serial->dev; |
659 | tdev = tport->tp_tdev; | |
660 | ||
661 | /* only one open on any port on a device at a time */ | |
9da0068a | 662 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
663 | return -ERESTARTSYS; |
664 | ||
1143832e | 665 | port_number = port->port_number; |
1da177e4 | 666 | |
1da177e4 LT |
667 | tport->tp_msr = 0; |
668 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
669 | ||
670 | /* start interrupt urb the first time a port is opened on this device */ | |
671 | if (tdev->td_open_port_count == 0) { | |
d53839cf | 672 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
1da177e4 LT |
673 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
674 | if (!urb) { | |
d53839cf | 675 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
1da177e4 | 676 | status = -EINVAL; |
9da0068a | 677 | goto release_lock; |
1da177e4 | 678 | } |
1da177e4 | 679 | urb->context = tdev; |
1da177e4 LT |
680 | status = usb_submit_urb(urb, GFP_KERNEL); |
681 | if (status) { | |
d53839cf | 682 | dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
9da0068a | 683 | goto release_lock; |
1da177e4 LT |
684 | } |
685 | } | |
686 | ||
95da310e | 687 | if (tty) |
adc8d746 | 688 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 689 | |
1da177e4 LT |
690 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
691 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
692 | if (status) { | |
a30fa793 | 693 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
d53839cf | 694 | __func__, status); |
1da177e4 LT |
695 | goto unlink_int_urb; |
696 | } | |
697 | ||
1da177e4 LT |
698 | status = ti_command_out_sync(tdev, TI_START_PORT, |
699 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
700 | if (status) { | |
a30fa793 AC |
701 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
702 | __func__, status); | |
1da177e4 LT |
703 | goto unlink_int_urb; |
704 | } | |
705 | ||
1da177e4 LT |
706 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
707 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
708 | if (status) { | |
a30fa793 AC |
709 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
710 | __func__, status); | |
1da177e4 LT |
711 | goto unlink_int_urb; |
712 | } | |
713 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
714 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
715 | if (status) { | |
a30fa793 AC |
716 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
717 | __func__, status); | |
1da177e4 LT |
718 | goto unlink_int_urb; |
719 | } | |
720 | ||
721 | /* reset the data toggle on the bulk endpoints to work around bug in | |
722 | * host controllers where things get out of sync some times */ | |
723 | usb_clear_halt(dev, port->write_urb->pipe); | |
724 | usb_clear_halt(dev, port->read_urb->pipe); | |
725 | ||
95da310e | 726 | if (tty) |
adc8d746 | 727 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 728 | |
1da177e4 LT |
729 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
730 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
731 | if (status) { | |
a30fa793 AC |
732 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
733 | __func__, status); | |
1da177e4 LT |
734 | goto unlink_int_urb; |
735 | } | |
736 | ||
1da177e4 LT |
737 | status = ti_command_out_sync(tdev, TI_START_PORT, |
738 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
739 | if (status) { | |
a30fa793 AC |
740 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
741 | __func__, status); | |
1da177e4 LT |
742 | goto unlink_int_urb; |
743 | } | |
744 | ||
745 | /* start read urb */ | |
1da177e4 LT |
746 | urb = port->read_urb; |
747 | if (!urb) { | |
441b62c1 | 748 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
749 | status = -EINVAL; |
750 | goto unlink_int_urb; | |
751 | } | |
752 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1da177e4 | 753 | urb->context = tport; |
1da177e4 LT |
754 | status = usb_submit_urb(urb, GFP_KERNEL); |
755 | if (status) { | |
a30fa793 AC |
756 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
757 | __func__, status); | |
1da177e4 LT |
758 | goto unlink_int_urb; |
759 | } | |
760 | ||
761 | tport->tp_is_open = 1; | |
762 | ++tdev->td_open_port_count; | |
763 | ||
9da0068a | 764 | goto release_lock; |
1da177e4 LT |
765 | |
766 | unlink_int_urb: | |
767 | if (tdev->td_open_port_count == 0) | |
768 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
769 | release_lock: |
770 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
771 | return status; |
772 | } | |
773 | ||
774 | ||
335f8514 | 775 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
776 | { |
777 | struct ti_device *tdev; | |
778 | struct ti_port *tport; | |
779 | int port_number; | |
780 | int status; | |
9da0068a | 781 | int do_unlock; |
113ec31e | 782 | unsigned long flags; |
1da177e4 | 783 | |
1da177e4 LT |
784 | tdev = usb_get_serial_data(port->serial); |
785 | tport = usb_get_serial_port_data(port); | |
1da177e4 LT |
786 | |
787 | tport->tp_is_open = 0; | |
788 | ||
1da177e4 LT |
789 | usb_kill_urb(port->read_urb); |
790 | usb_kill_urb(port->write_urb); | |
791 | tport->tp_write_urb_in_use = 0; | |
113ec31e | 792 | spin_lock_irqsave(&tport->tp_lock, flags); |
cd1e098b | 793 | kfifo_reset_out(&port->write_fifo); |
113ec31e | 794 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 795 | |
1143832e | 796 | port_number = port->port_number; |
1da177e4 | 797 | |
1da177e4 LT |
798 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
799 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
800 | if (status) | |
a30fa793 AC |
801 | dev_err(&port->dev, |
802 | "%s - cannot send close port command, %d\n" | |
803 | , __func__, status); | |
1da177e4 | 804 | |
9da0068a MK |
805 | /* if mutex_lock is interrupted, continue anyway */ |
806 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
807 | --tport->tp_tdev->td_open_port_count; |
808 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
809 | /* last port is closed, shut down interrupt urb */ | |
810 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
811 | tport->tp_tdev->td_open_port_count = 0; | |
812 | } | |
9da0068a MK |
813 | if (do_unlock) |
814 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
815 | } |
816 | ||
817 | ||
95da310e AC |
818 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
819 | const unsigned char *data, int count) | |
1da177e4 LT |
820 | { |
821 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 822 | |
1da177e4 | 823 | if (count == 0) { |
1da177e4 LT |
824 | return 0; |
825 | } | |
826 | ||
98ba0853 | 827 | if (!tport->tp_is_open) |
1da177e4 LT |
828 | return -ENODEV; |
829 | ||
cd1e098b | 830 | count = kfifo_in_locked(&port->write_fifo, data, count, |
074ef65a | 831 | &tport->tp_lock); |
1da177e4 LT |
832 | ti_send(tport); |
833 | ||
834 | return count; | |
835 | } | |
836 | ||
837 | ||
95da310e | 838 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 839 | { |
95da310e | 840 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
841 | struct ti_port *tport = usb_get_serial_port_data(port); |
842 | int room = 0; | |
843 | unsigned long flags; | |
844 | ||
1da177e4 | 845 | spin_lock_irqsave(&tport->tp_lock, flags); |
cd1e098b | 846 | room = kfifo_avail(&port->write_fifo); |
1da177e4 LT |
847 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
848 | ||
d53839cf | 849 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
850 | return room; |
851 | } | |
852 | ||
853 | ||
95da310e | 854 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 855 | { |
95da310e | 856 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
857 | struct ti_port *tport = usb_get_serial_port_data(port); |
858 | int chars = 0; | |
859 | unsigned long flags; | |
860 | ||
1da177e4 | 861 | spin_lock_irqsave(&tport->tp_lock, flags); |
cd1e098b | 862 | chars = kfifo_len(&port->write_fifo); |
1da177e4 LT |
863 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
864 | ||
d53839cf | 865 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
866 | return chars; |
867 | } | |
868 | ||
ff93b19e JH |
869 | static bool ti_tx_empty(struct usb_serial_port *port) |
870 | { | |
871 | struct ti_port *tport = usb_get_serial_port_data(port); | |
872 | int ret; | |
873 | u8 lsr; | |
874 | ||
875 | ret = ti_get_lsr(tport, &lsr); | |
876 | if (!ret && !(lsr & TI_LSR_TX_EMPTY)) | |
877 | return false; | |
878 | ||
879 | return true; | |
880 | } | |
1da177e4 | 881 | |
95da310e | 882 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 883 | { |
95da310e | 884 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 885 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 886 | |
1da177e4 LT |
887 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
888 | ti_stop_read(tport, tty); | |
889 | ||
890 | } | |
891 | ||
892 | ||
95da310e | 893 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 894 | { |
95da310e | 895 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 896 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
897 | int status; |
898 | ||
1da177e4 LT |
899 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
900 | status = ti_restart_read(tport, tty); | |
901 | if (status) | |
a30fa793 AC |
902 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
903 | __func__, status); | |
1da177e4 LT |
904 | } |
905 | } | |
906 | ||
00a0d0d6 | 907 | static int ti_ioctl(struct tty_struct *tty, |
1da177e4 LT |
908 | unsigned int cmd, unsigned long arg) |
909 | { | |
95da310e | 910 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 911 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 912 | |
1da177e4 | 913 | switch (cmd) { |
a30fa793 | 914 | case TIOCGSERIAL: |
a30fa793 AC |
915 | return ti_get_serial_info(tport, |
916 | (struct serial_struct __user *)arg); | |
917 | case TIOCSSERIAL: | |
4a90f09b AC |
918 | return ti_set_serial_info(tty, tport, |
919 | (struct serial_struct __user *)arg); | |
1da177e4 | 920 | } |
1da177e4 LT |
921 | return -ENOIOCTLCMD; |
922 | } | |
923 | ||
924 | ||
95da310e AC |
925 | static void ti_set_termios(struct tty_struct *tty, |
926 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
927 | { |
928 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 929 | struct ti_uart_config *config; |
a30fa793 | 930 | tcflag_t cflag, iflag; |
1da177e4 LT |
931 | int baud; |
932 | int status; | |
1143832e | 933 | int port_number = port->port_number; |
1da177e4 | 934 | unsigned int mcr; |
f1054b2d MO |
935 | u16 wbaudrate; |
936 | u16 wflags = 0; | |
1da177e4 | 937 | |
adc8d746 AC |
938 | cflag = tty->termios.c_cflag; |
939 | iflag = tty->termios.c_iflag; | |
1da177e4 | 940 | |
d53839cf GKH |
941 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
942 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, | |
943 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 | 944 | |
1da177e4 | 945 | config = kmalloc(sizeof(*config), GFP_KERNEL); |
10c642d0 | 946 | if (!config) |
1da177e4 | 947 | return; |
1da177e4 | 948 | |
1da177e4 | 949 | /* these flags must be set */ |
f1054b2d MO |
950 | wflags |= TI_UART_ENABLE_MS_INTS; |
951 | wflags |= TI_UART_ENABLE_AUTO_START_DMA; | |
952 | config->bUartMode = tport->tp_uart_mode; | |
1da177e4 | 953 | |
38d6d23f | 954 | switch (C_CSIZE(tty)) { |
a30fa793 AC |
955 | case CS5: |
956 | config->bDataBits = TI_UART_5_DATA_BITS; | |
957 | break; | |
958 | case CS6: | |
959 | config->bDataBits = TI_UART_6_DATA_BITS; | |
960 | break; | |
961 | case CS7: | |
962 | config->bDataBits = TI_UART_7_DATA_BITS; | |
963 | break; | |
964 | default: | |
965 | case CS8: | |
966 | config->bDataBits = TI_UART_8_DATA_BITS; | |
967 | break; | |
1da177e4 LT |
968 | } |
969 | ||
537699ef | 970 | /* CMSPAR isn't supported by this driver */ |
adc8d746 | 971 | tty->termios.c_cflag &= ~CMSPAR; |
537699ef | 972 | |
38d6d23f MO |
973 | if (C_PARENB(tty)) { |
974 | if (C_PARODD(tty)) { | |
f1054b2d | 975 | wflags |= TI_UART_ENABLE_PARITY_CHECKING; |
1da177e4 LT |
976 | config->bParity = TI_UART_ODD_PARITY; |
977 | } else { | |
f1054b2d | 978 | wflags |= TI_UART_ENABLE_PARITY_CHECKING; |
1da177e4 LT |
979 | config->bParity = TI_UART_EVEN_PARITY; |
980 | } | |
981 | } else { | |
f1054b2d | 982 | wflags &= ~TI_UART_ENABLE_PARITY_CHECKING; |
a30fa793 | 983 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
984 | } |
985 | ||
38d6d23f | 986 | if (C_CSTOPB(tty)) |
1da177e4 LT |
987 | config->bStopBits = TI_UART_2_STOP_BITS; |
988 | else | |
989 | config->bStopBits = TI_UART_1_STOP_BITS; | |
990 | ||
38d6d23f | 991 | if (C_CRTSCTS(tty)) { |
1da177e4 | 992 | /* RTS flow control must be off to drop RTS for baud rate B0 */ |
38d6d23f | 993 | if ((C_BAUD(tty)) != B0) |
f1054b2d MO |
994 | wflags |= TI_UART_ENABLE_RTS_IN; |
995 | wflags |= TI_UART_ENABLE_CTS_OUT; | |
1da177e4 | 996 | } else { |
1da177e4 LT |
997 | ti_restart_read(tport, tty); |
998 | } | |
999 | ||
1000 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
1001 | config->cXon = START_CHAR(tty); | |
1002 | config->cXoff = STOP_CHAR(tty); | |
1003 | ||
1004 | if (I_IXOFF(tty)) | |
f1054b2d | 1005 | wflags |= TI_UART_ENABLE_X_IN; |
1da177e4 LT |
1006 | else |
1007 | ti_restart_read(tport, tty); | |
1008 | ||
1009 | if (I_IXON(tty)) | |
f1054b2d | 1010 | wflags |= TI_UART_ENABLE_X_OUT; |
1da177e4 LT |
1011 | } |
1012 | ||
1013 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
1014 | if (!baud) |
1015 | baud = 9600; | |
1da177e4 | 1016 | if (tport->tp_tdev->td_is_3410) |
f1054b2d | 1017 | wbaudrate = (923077 + baud/2) / baud; |
1da177e4 | 1018 | else |
f1054b2d | 1019 | wbaudrate = (461538 + baud/2) / baud; |
1da177e4 | 1020 | |
537699ef | 1021 | /* FIXME: Should calculate resulting baud here and report it back */ |
38d6d23f | 1022 | if ((C_BAUD(tty)) != B0) |
537699ef AC |
1023 | tty_encode_baud_rate(tty, baud, baud); |
1024 | ||
d53839cf | 1025 | dev_dbg(&port->dev, |
d9a38a87 | 1026 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n", |
f1054b2d | 1027 | __func__, baud, wbaudrate, wflags, |
d53839cf GKH |
1028 | config->bDataBits, config->bParity, config->bStopBits, |
1029 | config->cXon, config->cXoff, config->bUartMode); | |
1da177e4 | 1030 | |
f1054b2d MO |
1031 | config->wBaudRate = cpu_to_be16(wbaudrate); |
1032 | config->wFlags = cpu_to_be16(wflags); | |
1da177e4 LT |
1033 | |
1034 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
1035 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
1036 | sizeof(*config)); | |
1037 | if (status) | |
a30fa793 AC |
1038 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
1039 | __func__, port_number, status); | |
1da177e4 LT |
1040 | |
1041 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
1042 | mcr = tport->tp_shadow_mcr; | |
1043 | /* if baud rate is B0, clear RTS and DTR */ | |
38d6d23f | 1044 | if (C_BAUD(tty) == B0) |
1da177e4 LT |
1045 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); |
1046 | status = ti_set_mcr(tport, mcr); | |
1047 | if (status) | |
a30fa793 AC |
1048 | dev_err(&port->dev, |
1049 | "%s - cannot set modem control on port %d, %d\n", | |
1050 | __func__, port_number, status); | |
1da177e4 LT |
1051 | |
1052 | kfree(config); | |
1053 | } | |
1054 | ||
1055 | ||
60b33c13 | 1056 | static int ti_tiocmget(struct tty_struct *tty) |
1da177e4 | 1057 | { |
95da310e | 1058 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1059 | struct ti_port *tport = usb_get_serial_port_data(port); |
1060 | unsigned int result; | |
1061 | unsigned int msr; | |
1062 | unsigned int mcr; | |
04ca89d4 | 1063 | unsigned long flags; |
1da177e4 | 1064 | |
04ca89d4 | 1065 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1066 | msr = tport->tp_msr; |
1067 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 1068 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1069 | |
1070 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
1071 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
1072 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
1073 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
1074 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
1075 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
1076 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
1077 | ||
d53839cf | 1078 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
1da177e4 LT |
1079 | |
1080 | return result; | |
1081 | } | |
1082 | ||
1083 | ||
20b9d177 AC |
1084 | static int ti_tiocmset(struct tty_struct *tty, |
1085 | unsigned int set, unsigned int clear) | |
1da177e4 | 1086 | { |
95da310e | 1087 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1088 | struct ti_port *tport = usb_get_serial_port_data(port); |
1089 | unsigned int mcr; | |
04ca89d4 | 1090 | unsigned long flags; |
1da177e4 | 1091 | |
04ca89d4 | 1092 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1093 | mcr = tport->tp_shadow_mcr; |
1094 | ||
1095 | if (set & TIOCM_RTS) | |
1096 | mcr |= TI_MCR_RTS; | |
1097 | if (set & TIOCM_DTR) | |
1098 | mcr |= TI_MCR_DTR; | |
1099 | if (set & TIOCM_LOOP) | |
1100 | mcr |= TI_MCR_LOOP; | |
1101 | ||
1102 | if (clear & TIOCM_RTS) | |
1103 | mcr &= ~TI_MCR_RTS; | |
1104 | if (clear & TIOCM_DTR) | |
1105 | mcr &= ~TI_MCR_DTR; | |
1106 | if (clear & TIOCM_LOOP) | |
1107 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 1108 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1109 | |
1110 | return ti_set_mcr(tport, mcr); | |
1111 | } | |
1112 | ||
1113 | ||
95da310e | 1114 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 1115 | { |
95da310e | 1116 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1117 | struct ti_port *tport = usb_get_serial_port_data(port); |
1118 | int status; | |
1119 | ||
d53839cf | 1120 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
1da177e4 | 1121 | |
d53839cf | 1122 | status = ti_write_byte(port, tport->tp_tdev, |
1da177e4 LT |
1123 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
1124 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
1125 | ||
1126 | if (status) | |
d53839cf | 1127 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
1da177e4 LT |
1128 | } |
1129 | ||
d8d841e8 MO |
1130 | static int ti_get_port_from_code(unsigned char code) |
1131 | { | |
1132 | return (code >> 4) - 3; | |
1133 | } | |
1134 | ||
1135 | static int ti_get_func_from_code(unsigned char code) | |
1136 | { | |
1137 | return code & 0x0f; | |
1138 | } | |
1da177e4 | 1139 | |
7d12e780 | 1140 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 1141 | { |
cdc97792 | 1142 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
1143 | struct usb_serial_port *port; |
1144 | struct usb_serial *serial = tdev->td_serial; | |
1145 | struct ti_port *tport; | |
1146 | struct device *dev = &urb->dev->dev; | |
1147 | unsigned char *data = urb->transfer_buffer; | |
1148 | int length = urb->actual_length; | |
1149 | int port_number; | |
1150 | int function; | |
52171b48 GKH |
1151 | int status = urb->status; |
1152 | int retval; | |
f1054b2d | 1153 | u8 msr; |
1da177e4 | 1154 | |
52171b48 | 1155 | switch (status) { |
1da177e4 LT |
1156 | case 0: |
1157 | break; | |
1158 | case -ECONNRESET: | |
1159 | case -ENOENT: | |
1160 | case -ESHUTDOWN: | |
d53839cf | 1161 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1162 | return; |
1163 | default: | |
d53839cf | 1164 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
1da177e4 LT |
1165 | goto exit; |
1166 | } | |
1167 | ||
1168 | if (length != 2) { | |
d53839cf | 1169 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
1da177e4 LT |
1170 | goto exit; |
1171 | } | |
1172 | ||
1173 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 1174 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
1175 | goto exit; |
1176 | } | |
1177 | ||
d8d841e8 MO |
1178 | port_number = ti_get_port_from_code(data[0]); |
1179 | function = ti_get_func_from_code(data[0]); | |
1da177e4 | 1180 | |
d53839cf GKH |
1181 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
1182 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
1183 | |
1184 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
1185 | dev_err(dev, "%s - bad port number, %d\n", |
1186 | __func__, port_number); | |
1da177e4 LT |
1187 | goto exit; |
1188 | } | |
1189 | ||
1190 | port = serial->port[port_number]; | |
1191 | ||
1192 | tport = usb_get_serial_port_data(port); | |
1193 | if (!tport) | |
1194 | goto exit; | |
1195 | ||
1196 | switch (function) { | |
1197 | case TI_CODE_DATA_ERROR: | |
a30fa793 | 1198 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
d53839cf | 1199 | __func__, port_number, data[1]); |
1da177e4 LT |
1200 | break; |
1201 | ||
1202 | case TI_CODE_MODEM_STATUS: | |
1203 | msr = data[1]; | |
d53839cf | 1204 | dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
1da177e4 LT |
1205 | ti_handle_new_msr(tport, msr); |
1206 | break; | |
1207 | ||
1208 | default: | |
a30fa793 AC |
1209 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
1210 | __func__, data[1]); | |
1da177e4 LT |
1211 | break; |
1212 | } | |
1213 | ||
1214 | exit: | |
52171b48 GKH |
1215 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1216 | if (retval) | |
1217 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1218 | __func__, retval); |
1da177e4 LT |
1219 | } |
1220 | ||
1221 | ||
7d12e780 | 1222 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1223 | { |
cdc97792 | 1224 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1225 | struct usb_serial_port *port = tport->tp_port; |
1226 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1227 | int status = urb->status; |
1228 | int retval = 0; | |
1da177e4 | 1229 | |
52171b48 | 1230 | switch (status) { |
1da177e4 LT |
1231 | case 0: |
1232 | break; | |
1233 | case -ECONNRESET: | |
1234 | case -ENOENT: | |
1235 | case -ESHUTDOWN: | |
d53839cf | 1236 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1237 | return; |
1238 | default: | |
52171b48 | 1239 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1240 | __func__, status); |
1da177e4 LT |
1241 | } |
1242 | ||
52171b48 | 1243 | if (status == -EPIPE) |
1da177e4 LT |
1244 | goto exit; |
1245 | ||
52171b48 | 1246 | if (status) { |
441b62c1 | 1247 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1248 | return; |
1249 | } | |
1250 | ||
2e124b4a JS |
1251 | if (urb->actual_length) { |
1252 | usb_serial_debug_data(dev, __func__, urb->actual_length, | |
1253 | urb->transfer_buffer); | |
1254 | ||
1255 | if (!tport->tp_is_open) | |
1256 | dev_dbg(dev, "%s - port closed, dropping data\n", | |
1257 | __func__); | |
1258 | else | |
1259 | ti_recv(port, urb->transfer_buffer, urb->actual_length); | |
1260 | spin_lock(&tport->tp_lock); | |
783ca355 | 1261 | port->icount.rx += urb->actual_length; |
2e124b4a | 1262 | spin_unlock(&tport->tp_lock); |
1da177e4 LT |
1263 | } |
1264 | ||
1265 | exit: | |
1266 | /* continue to read unless stopping */ | |
1267 | spin_lock(&tport->tp_lock); | |
5833041f | 1268 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
52171b48 | 1269 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1270 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
1da177e4 | 1271 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
5833041f | 1272 | |
1da177e4 | 1273 | spin_unlock(&tport->tp_lock); |
52171b48 GKH |
1274 | if (retval) |
1275 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1276 | __func__, retval); |
1da177e4 LT |
1277 | } |
1278 | ||
1279 | ||
7d12e780 | 1280 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1281 | { |
cdc97792 | 1282 | struct ti_port *tport = urb->context; |
1da177e4 | 1283 | struct usb_serial_port *port = tport->tp_port; |
52171b48 | 1284 | int status = urb->status; |
1da177e4 | 1285 | |
1da177e4 LT |
1286 | tport->tp_write_urb_in_use = 0; |
1287 | ||
52171b48 | 1288 | switch (status) { |
1da177e4 LT |
1289 | case 0: |
1290 | break; | |
1291 | case -ECONNRESET: | |
1292 | case -ENOENT: | |
1293 | case -ESHUTDOWN: | |
d53839cf | 1294 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1295 | return; |
1296 | default: | |
22a416c4 | 1297 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
441b62c1 | 1298 | __func__, status); |
1da177e4 LT |
1299 | } |
1300 | ||
1301 | /* send any buffered data */ | |
1302 | ti_send(tport); | |
1303 | } | |
1304 | ||
1305 | ||
2e124b4a JS |
1306 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
1307 | int length) | |
1da177e4 LT |
1308 | { |
1309 | int cnt; | |
1310 | ||
1311 | do { | |
05c7cd39 | 1312 | cnt = tty_insert_flip_string(&port->port, data, length); |
33f0f88f | 1313 | if (cnt < length) { |
05c7cd39 | 1314 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
a30fa793 AC |
1315 | __func__, length - cnt); |
1316 | if (cnt == 0) | |
33f0f88f | 1317 | break; |
1da177e4 | 1318 | } |
2e124b4a | 1319 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1320 | data += cnt; |
1321 | length -= cnt; | |
1322 | } while (length > 0); | |
1da177e4 LT |
1323 | } |
1324 | ||
1325 | ||
1326 | static void ti_send(struct ti_port *tport) | |
1327 | { | |
1328 | int count, result; | |
1329 | struct usb_serial_port *port = tport->tp_port; | |
1da177e4 LT |
1330 | unsigned long flags; |
1331 | ||
1da177e4 LT |
1332 | spin_lock_irqsave(&tport->tp_lock, flags); |
1333 | ||
4a90f09b AC |
1334 | if (tport->tp_write_urb_in_use) |
1335 | goto unlock; | |
1da177e4 | 1336 | |
cd1e098b | 1337 | count = kfifo_out(&port->write_fifo, |
1da177e4 LT |
1338 | port->write_urb->transfer_buffer, |
1339 | port->bulk_out_size); | |
1340 | ||
4a90f09b AC |
1341 | if (count == 0) |
1342 | goto unlock; | |
1da177e4 LT |
1343 | |
1344 | tport->tp_write_urb_in_use = 1; | |
1345 | ||
1346 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1347 | ||
59d33f2f GKH |
1348 | usb_serial_debug_data(&port->dev, __func__, count, |
1349 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1350 | |
1351 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1352 | usb_sndbulkpipe(port->serial->dev, | |
1353 | port->bulk_out_endpointAddress), | |
1354 | port->write_urb->transfer_buffer, count, | |
1355 | ti_bulk_out_callback, tport); | |
1356 | ||
1357 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1358 | if (result) { | |
22a416c4 | 1359 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
a30fa793 AC |
1360 | __func__, result); |
1361 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1362 | /* TODO: reschedule ti_send */ |
1363 | } else { | |
1364 | spin_lock_irqsave(&tport->tp_lock, flags); | |
783ca355 | 1365 | port->icount.tx += count; |
1da177e4 LT |
1366 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1367 | } | |
1368 | ||
1369 | /* more room in the buffer for new writes, wakeup */ | |
6aad04f2 JS |
1370 | tty_port_tty_wakeup(&port->port); |
1371 | ||
4a90f09b AC |
1372 | return; |
1373 | unlock: | |
1374 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
4a90f09b | 1375 | return; |
1da177e4 LT |
1376 | } |
1377 | ||
1378 | ||
1379 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1380 | { | |
04ca89d4 | 1381 | unsigned long flags; |
1da177e4 LT |
1382 | int status; |
1383 | ||
d53839cf | 1384 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
1da177e4 LT |
1385 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
1386 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1387 | ||
04ca89d4 | 1388 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1389 | if (!status) |
1390 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1391 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1392 | |
1393 | return status; | |
1394 | } | |
1395 | ||
1396 | ||
b5784f7d | 1397 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr) |
1da177e4 | 1398 | { |
a30fa793 | 1399 | int size, status; |
1da177e4 LT |
1400 | struct ti_device *tdev = tport->tp_tdev; |
1401 | struct usb_serial_port *port = tport->tp_port; | |
1143832e | 1402 | int port_number = port->port_number; |
1da177e4 LT |
1403 | struct ti_port_status *data; |
1404 | ||
1da177e4 LT |
1405 | size = sizeof(struct ti_port_status); |
1406 | data = kmalloc(size, GFP_KERNEL); | |
10c642d0 | 1407 | if (!data) |
1da177e4 | 1408 | return -ENOMEM; |
1da177e4 LT |
1409 | |
1410 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1411 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1412 | if (status) { | |
a30fa793 AC |
1413 | dev_err(&port->dev, |
1414 | "%s - get port status command failed, %d\n", | |
1415 | __func__, status); | |
1da177e4 LT |
1416 | goto free_data; |
1417 | } | |
1418 | ||
d53839cf | 1419 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
1da177e4 | 1420 | |
b5784f7d | 1421 | *lsr = data->bLSR; |
1da177e4 LT |
1422 | |
1423 | free_data: | |
1424 | kfree(data); | |
1425 | return status; | |
1426 | } | |
1427 | ||
1428 | ||
1429 | static int ti_get_serial_info(struct ti_port *tport, | |
1430 | struct serial_struct __user *ret_arg) | |
1431 | { | |
1432 | struct usb_serial_port *port = tport->tp_port; | |
1433 | struct serial_struct ret_serial; | |
f1175daa | 1434 | unsigned cwait; |
1da177e4 | 1435 | |
f1175daa JH |
1436 | cwait = port->port.closing_wait; |
1437 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
1438 | cwait = jiffies_to_msecs(cwait) / 10; | |
1439 | ||
1da177e4 LT |
1440 | memset(&ret_serial, 0, sizeof(ret_serial)); |
1441 | ||
1442 | ret_serial.type = PORT_16550A; | |
e5b1e206 | 1443 | ret_serial.line = port->minor; |
1143832e | 1444 | ret_serial.port = port->port_number; |
cd1e098b | 1445 | ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo); |
1da177e4 | 1446 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; |
f1175daa | 1447 | ret_serial.closing_wait = cwait; |
1da177e4 LT |
1448 | |
1449 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1450 | return -EFAULT; | |
1451 | ||
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | ||
4a90f09b | 1456 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1457 | struct serial_struct __user *new_arg) |
1458 | { | |
1da177e4 | 1459 | struct serial_struct new_serial; |
f1175daa | 1460 | unsigned cwait; |
1da177e4 LT |
1461 | |
1462 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1463 | return -EFAULT; | |
1464 | ||
f1175daa JH |
1465 | cwait = new_serial.closing_wait; |
1466 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
1467 | cwait = msecs_to_jiffies(10 * new_serial.closing_wait); | |
1468 | ||
f1175daa | 1469 | tport->tp_port->port.closing_wait = cwait; |
1da177e4 LT |
1470 | |
1471 | return 0; | |
1472 | } | |
1473 | ||
1474 | ||
f1054b2d | 1475 | static void ti_handle_new_msr(struct ti_port *tport, u8 msr) |
1da177e4 LT |
1476 | { |
1477 | struct async_icount *icount; | |
1478 | struct tty_struct *tty; | |
1479 | unsigned long flags; | |
1480 | ||
d53839cf | 1481 | dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
1da177e4 LT |
1482 | |
1483 | if (msr & TI_MSR_DELTA_MASK) { | |
1484 | spin_lock_irqsave(&tport->tp_lock, flags); | |
783ca355 | 1485 | icount = &tport->tp_port->icount; |
1da177e4 LT |
1486 | if (msr & TI_MSR_DELTA_CTS) |
1487 | icount->cts++; | |
1488 | if (msr & TI_MSR_DELTA_DSR) | |
1489 | icount->dsr++; | |
1490 | if (msr & TI_MSR_DELTA_CD) | |
1491 | icount->dcd++; | |
1492 | if (msr & TI_MSR_DELTA_RI) | |
1493 | icount->rng++; | |
6c75e260 | 1494 | wake_up_interruptible(&tport->tp_port->port.delta_msr_wait); |
1da177e4 LT |
1495 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1496 | } | |
1497 | ||
1498 | tport->tp_msr = msr & TI_MSR_MASK; | |
1499 | ||
1500 | /* handle CTS flow control */ | |
4a90f09b | 1501 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 | 1502 | if (tty && C_CRTSCTS(tty)) { |
d95e3cae | 1503 | if (msr & TI_MSR_CTS) |
1da177e4 | 1504 | tty_wakeup(tty); |
1da177e4 | 1505 | } |
4a90f09b | 1506 | tty_kref_put(tty); |
1da177e4 LT |
1507 | } |
1508 | ||
1509 | ||
1da177e4 LT |
1510 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) |
1511 | { | |
1512 | unsigned long flags; | |
1513 | ||
1514 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1515 | ||
1516 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1517 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1518 | ||
1519 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1520 | } | |
1521 | ||
1522 | ||
1523 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1524 | { | |
1525 | struct urb *urb; | |
1526 | int status = 0; | |
1527 | unsigned long flags; | |
1528 | ||
1529 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1530 | ||
1531 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1532 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1533 | urb = tport->tp_port->read_urb; |
944dc184 | 1534 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 1535 | urb->context = tport; |
1da177e4 | 1536 | status = usb_submit_urb(urb, GFP_KERNEL); |
944dc184 ON |
1537 | } else { |
1538 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1539 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1540 | } |
1da177e4 LT |
1541 | |
1542 | return status; | |
1543 | } | |
1544 | ||
1545 | ||
1546 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1547 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1548 | { | |
1549 | int status; | |
1550 | ||
1551 | status = usb_control_msg(tdev->td_serial->dev, | |
1552 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1553 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1554 | value, moduleid, data, size, 1000); | |
1555 | ||
1556 | if (status == size) | |
1557 | status = 0; | |
1558 | ||
1559 | if (status > 0) | |
1560 | status = -ECOMM; | |
1561 | ||
1562 | return status; | |
1563 | } | |
1564 | ||
1565 | ||
1566 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
1567 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1568 | { | |
1569 | int status; | |
1570 | ||
1571 | status = usb_control_msg(tdev->td_serial->dev, | |
1572 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1573 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
1574 | value, moduleid, data, size, 1000); | |
1575 | ||
1576 | if (status == size) | |
1577 | status = 0; | |
1578 | ||
1579 | if (status > 0) | |
1580 | status = -ECOMM; | |
1581 | ||
1582 | return status; | |
1583 | } | |
1584 | ||
1585 | ||
d53839cf | 1586 | static int ti_write_byte(struct usb_serial_port *port, |
f1054b2d MO |
1587 | struct ti_device *tdev, unsigned long addr, |
1588 | u8 mask, u8 byte) | |
1da177e4 LT |
1589 | { |
1590 | int status; | |
1591 | unsigned int size; | |
1592 | struct ti_write_data_bytes *data; | |
1da177e4 | 1593 | |
d53839cf GKH |
1594 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
1595 | addr, mask, byte); | |
1da177e4 LT |
1596 | |
1597 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1598 | data = kmalloc(size, GFP_KERNEL); | |
10c642d0 | 1599 | if (!data) |
1da177e4 | 1600 | return -ENOMEM; |
1da177e4 LT |
1601 | |
1602 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1603 | data->bDataType = TI_RW_DATA_BYTE; | |
1604 | data->bDataCounter = 1; | |
1605 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1606 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1607 | data->bData[0] = mask; | |
1608 | data->bData[1] = byte; | |
1609 | ||
1610 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1611 | (__u8 *)data, size); | |
1612 | ||
1613 | if (status < 0) | |
d53839cf | 1614 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1615 | |
1616 | kfree(data); | |
1617 | ||
1618 | return status; | |
1619 | } | |
1620 | ||
95da310e AC |
1621 | static int ti_do_download(struct usb_device *dev, int pipe, |
1622 | u8 *buffer, int size) | |
1da177e4 | 1623 | { |
1da177e4 | 1624 | int pos; |
95da310e | 1625 | u8 cs = 0; |
1da177e4 | 1626 | int done; |
1da177e4 | 1627 | struct ti_firmware_header *header; |
87ea8c88 | 1628 | int status = 0; |
95da310e | 1629 | int len; |
a30fa793 AC |
1630 | |
1631 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
f1054b2d | 1632 | cs = (u8)(cs + buffer[pos]); |
1da177e4 LT |
1633 | |
1634 | header = (struct ti_firmware_header *)buffer; | |
f1054b2d | 1635 | header->wLength = cpu_to_le16(size - sizeof(*header)); |
1da177e4 LT |
1636 | header->bCheckSum = cs; |
1637 | ||
d53839cf | 1638 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
95da310e AC |
1639 | for (pos = 0; pos < size; pos += done) { |
1640 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1641 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1642 | &done, 1000); | |
1da177e4 LT |
1643 | if (status) |
1644 | break; | |
1645 | } | |
95da310e AC |
1646 | return status; |
1647 | } | |
1da177e4 | 1648 | |
05a3d905 | 1649 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1650 | { |
05a3d905 | 1651 | int status; |
95da310e | 1652 | int buffer_size; |
f1054b2d | 1653 | u8 *buffer; |
95da310e AC |
1654 | struct usb_device *dev = tdev->td_serial->dev; |
1655 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1656 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1657 | const struct firmware *fw_p; | |
1658 | char buf[32]; | |
1da177e4 | 1659 | |
b923c6c6 MO |
1660 | if (le16_to_cpu(dev->descriptor.idVendor) == MXU1_VENDOR_ID) { |
1661 | snprintf(buf, | |
1662 | sizeof(buf), | |
1663 | "moxa/moxa-%04x.fw", | |
1664 | le16_to_cpu(dev->descriptor.idProduct)); | |
1665 | ||
1666 | status = request_firmware(&fw_p, buf, &dev->dev); | |
1667 | goto check_firmware; | |
1668 | } | |
1669 | ||
05a3d905 | 1670 | /* try ID specific firmware first, then try generic firmware */ |
e877dd2f JH |
1671 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", |
1672 | le16_to_cpu(dev->descriptor.idVendor), | |
1673 | le16_to_cpu(dev->descriptor.idProduct)); | |
72b27a07 AR |
1674 | status = request_firmware(&fw_p, buf, &dev->dev); |
1675 | ||
1676 | if (status != 0) { | |
cb7a7c6a | 1677 | buf[0] = '\0'; |
e877dd2f JH |
1678 | if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) { |
1679 | switch (le16_to_cpu(dev->descriptor.idProduct)) { | |
cb7a7c6a CA |
1680 | case MTS_CDMA_PRODUCT_ID: |
1681 | strcpy(buf, "mts_cdma.fw"); | |
1682 | break; | |
1683 | case MTS_GSM_PRODUCT_ID: | |
1684 | strcpy(buf, "mts_gsm.fw"); | |
1685 | break; | |
1686 | case MTS_EDGE_PRODUCT_ID: | |
1687 | strcpy(buf, "mts_edge.fw"); | |
1688 | break; | |
cdc04834 AM |
1689 | case MTS_MT9234MU_PRODUCT_ID: |
1690 | strcpy(buf, "mts_mt9234mu.fw"); | |
1691 | break; | |
1692 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1693 | strcpy(buf, "mts_mt9234zba.fw"); | |
1694 | break; | |
1695 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1696 | strcpy(buf, "mts_mt9234zba.fw"); | |
1697 | break; } | |
cb7a7c6a CA |
1698 | } |
1699 | if (buf[0] == '\0') { | |
1700 | if (tdev->td_is_3410) | |
1701 | strcpy(buf, "ti_3410.fw"); | |
1702 | else | |
1703 | strcpy(buf, "ti_5052.fw"); | |
1704 | } | |
05a3d905 CA |
1705 | status = request_firmware(&fw_p, buf, &dev->dev); |
1706 | } | |
b923c6c6 MO |
1707 | |
1708 | check_firmware: | |
05a3d905 | 1709 | if (status) { |
95da310e AC |
1710 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1711 | return -ENOENT; | |
1712 | } | |
1713 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1714 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
357f45db | 1715 | release_firmware(fw_p); |
95da310e AC |
1716 | return -ENOENT; |
1717 | } | |
1718 | ||
1719 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1720 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1721 | if (buffer) { | |
1722 | memcpy(buffer, fw_p->data, fw_p->size); | |
1723 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1724 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1725 | kfree(buffer); |
05a3d905 CA |
1726 | } else { |
1727 | status = -ENOMEM; | |
95da310e AC |
1728 | } |
1729 | release_firmware(fw_p); | |
1da177e4 | 1730 | if (status) { |
a30fa793 AC |
1731 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1732 | __func__, status); | |
1da177e4 LT |
1733 | return status; |
1734 | } | |
1735 | ||
d53839cf | 1736 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
1da177e4 LT |
1737 | |
1738 | return 0; | |
1739 | } |