Commit | Line | Data |
---|---|---|
68a81291 SR |
1 | #include "sb_pci_mp.h" |
2 | #include <linux/module.h> | |
3 | #include <linux/parport.h> | |
4 | ||
5 | extern struct parport *parport_pc_probe_port(unsigned long base_lo, | |
6 | unsigned long base_hi, | |
7 | int irq, int dma, | |
8 | struct device *dev, | |
9 | int irqflags); | |
10 | ||
11 | static struct mp_device_t mp_devs[MAX_MP_DEV]; | |
12 | static int mp_nrpcibrds = sizeof(mp_pciboards)/sizeof(mppcibrd_t); | |
13 | static int NR_BOARD=0; | |
14 | static int NR_PORTS=0; | |
15 | static struct mp_port multi_ports[MAX_MP_PORT]; | |
16 | static struct irq_info irq_lists[NR_IRQS]; | |
17 | ||
18 | static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset); | |
19 | static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value); | |
20 | static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset); | |
21 | static int sb1054_get_register(struct sb_uart_port * port, int page, int reg); | |
22 | static int sb1054_set_register(struct sb_uart_port * port, int page, int reg, int value); | |
23 | static void SendATCommand(struct mp_port * mtpt); | |
24 | static int set_deep_fifo(struct sb_uart_port * port, int status); | |
25 | static int get_deep_fifo(struct sb_uart_port * port); | |
26 | static int get_device_type(int arg); | |
27 | static int set_auto_rts(struct sb_uart_port *port, int status); | |
28 | static void mp_stop(struct tty_struct *tty); | |
29 | static void __mp_start(struct tty_struct *tty); | |
30 | static void mp_start(struct tty_struct *tty); | |
31 | static void mp_tasklet_action(unsigned long data); | |
32 | static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear); | |
33 | static int mp_startup(struct sb_uart_state *state, int init_hw); | |
34 | static void mp_shutdown(struct sb_uart_state *state); | |
35 | static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios); | |
36 | ||
37 | static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c); | |
38 | static int mp_put_char(struct tty_struct *tty, unsigned char ch); | |
39 | ||
40 | static void mp_put_chars(struct tty_struct *tty); | |
41 | static int mp_write(struct tty_struct *tty, const unsigned char * buf, int count); | |
42 | static int mp_write_room(struct tty_struct *tty); | |
43 | static int mp_chars_in_buffer(struct tty_struct *tty); | |
44 | static void mp_flush_buffer(struct tty_struct *tty); | |
45 | static void mp_send_xchar(struct tty_struct *tty, char ch); | |
46 | static void mp_throttle(struct tty_struct *tty); | |
47 | static void mp_unthrottle(struct tty_struct *tty); | |
48 | static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo); | |
49 | static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo); | |
50 | static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value); | |
51 | ||
52 | static int mp_tiocmget(struct tty_struct *tty); | |
53 | static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); | |
54 | static int mp_break_ctl(struct tty_struct *tty, int break_state); | |
55 | static int mp_do_autoconfig(struct sb_uart_state *state); | |
56 | static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg); | |
57 | static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt); | |
58 | static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); | |
59 | static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios); | |
60 | static void mp_close(struct tty_struct *tty, struct file *filp); | |
61 | static void mp_wait_until_sent(struct tty_struct *tty, int timeout); | |
62 | static void mp_hangup(struct tty_struct *tty); | |
63 | static void mp_update_termios(struct sb_uart_state *state); | |
64 | static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state); | |
65 | static struct sb_uart_state *uart_get(struct uart_driver *drv, int line); | |
66 | static int mp_open(struct tty_struct *tty, struct file *filp); | |
67 | static const char *mp_type(struct sb_uart_port *port); | |
68 | static void mp_change_pm(struct sb_uart_state *state, int pm_state); | |
69 | static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port); | |
70 | static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port); | |
71 | static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state); | |
72 | static int mp_register_driver(struct uart_driver *drv); | |
73 | static void mp_unregister_driver(struct uart_driver *drv); | |
74 | static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port); | |
75 | static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port); | |
76 | static void autoconfig(struct mp_port *mtpt, unsigned int probeflags); | |
77 | static void autoconfig_irq(struct mp_port *mtpt); | |
78 | static void multi_stop_tx(struct sb_uart_port *port); | |
79 | static void multi_start_tx(struct sb_uart_port *port); | |
80 | static void multi_stop_rx(struct sb_uart_port *port); | |
81 | static void multi_enable_ms(struct sb_uart_port *port); | |
82 | static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status ); | |
83 | static _INLINE_ void transmit_chars(struct mp_port *mtpt); | |
84 | static _INLINE_ void check_modem_status(struct mp_port *mtpt); | |
85 | static inline void multi_handle_port(struct mp_port *mtpt); | |
86 | static irqreturn_t multi_interrupt(int irq, void *dev_id); | |
87 | static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt); | |
88 | static int serial_link_irq_chain(struct mp_port *mtpt); | |
89 | static void serial_unlink_irq_chain(struct mp_port *mtpt); | |
90 | static void multi_timeout(unsigned long data); | |
91 | static unsigned int multi_tx_empty(struct sb_uart_port *port); | |
92 | static unsigned int multi_get_mctrl(struct sb_uart_port *port); | |
93 | static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl); | |
94 | static void multi_break_ctl(struct sb_uart_port *port, int break_state); | |
95 | static int multi_startup(struct sb_uart_port *port); | |
96 | static void multi_shutdown(struct sb_uart_port *port); | |
97 | static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud); | |
98 | static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old); | |
99 | static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate); | |
100 | static void multi_release_std_resource(struct mp_port *mtpt); | |
101 | static void multi_release_port(struct sb_uart_port *port); | |
102 | static int multi_request_port(struct sb_uart_port *port); | |
103 | static void multi_config_port(struct sb_uart_port *port, int flags); | |
104 | static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser); | |
105 | static const char * multi_type(struct sb_uart_port *port); | |
106 | static void __init multi_init_ports(void); | |
107 | static void __init multi_register_ports(struct uart_driver *drv); | |
108 | static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd); | |
109 | ||
110 | static int deep[256]; | |
111 | static int deep_count; | |
112 | static int fcr_arr[256]; | |
113 | static int fcr_count; | |
114 | static int ttr[256]; | |
115 | static int ttr_count; | |
116 | static int rtr[256]; | |
117 | static int rtr_count; | |
118 | ||
119 | module_param_array(deep,int,&deep_count,0); | |
120 | module_param_array(fcr_arr,int,&fcr_count,0); | |
121 | module_param_array(ttr,int,&ttr_count,0); | |
122 | module_param_array(rtr,int,&rtr_count,0); | |
123 | ||
124 | static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset) | |
125 | { | |
126 | return inb(mtpt->port.iobase + offset); | |
127 | } | |
128 | ||
129 | static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value) | |
130 | { | |
131 | outb(value, mtpt->port.iobase + offset); | |
132 | } | |
133 | ||
134 | static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset) | |
135 | { | |
136 | return inb(mtpt->option_base_addr + offset); | |
137 | } | |
138 | ||
139 | static int sb1053a_get_interface(struct mp_port *mtpt, int port_num) | |
140 | { | |
141 | unsigned long option_base_addr = mtpt->option_base_addr; | |
142 | unsigned int interface = 0; | |
143 | ||
144 | switch (port_num) | |
145 | { | |
146 | case 0: | |
147 | case 1: | |
148 | /* set GPO[1:0] = 00 */ | |
149 | outb(0x00, option_base_addr + MP_OPTR_GPODR); | |
150 | break; | |
151 | case 2: | |
152 | case 3: | |
153 | /* set GPO[1:0] = 01 */ | |
154 | outb(0x01, option_base_addr + MP_OPTR_GPODR); | |
155 | break; | |
156 | case 4: | |
157 | case 5: | |
158 | /* set GPO[1:0] = 10 */ | |
159 | outb(0x02, option_base_addr + MP_OPTR_GPODR); | |
160 | break; | |
161 | default: | |
162 | break; | |
163 | } | |
164 | ||
165 | port_num &= 0x1; | |
166 | ||
167 | /* get interface */ | |
168 | interface = inb(option_base_addr + MP_OPTR_IIR0 + port_num); | |
169 | ||
170 | /* set GPO[1:0] = 11 */ | |
171 | outb(0x03, option_base_addr + MP_OPTR_GPODR); | |
172 | ||
173 | return (interface); | |
174 | } | |
175 | ||
176 | static int sb1054_get_register(struct sb_uart_port * port, int page, int reg) | |
177 | { | |
178 | int ret = 0; | |
179 | unsigned int lcr = 0; | |
180 | unsigned int mcr = 0; | |
181 | unsigned int tmp = 0; | |
182 | ||
183 | if( page <= 0) | |
184 | { | |
185 | printk(" page 0 can not use this fuction\n"); | |
186 | return -1; | |
187 | } | |
188 | ||
189 | switch(page) | |
190 | { | |
191 | case 1: | |
192 | lcr = SB105X_GET_LCR(port); | |
193 | tmp = lcr | SB105X_LCR_DLAB; | |
194 | SB105X_PUT_LCR(port, tmp); | |
195 | ||
196 | tmp = SB105X_GET_LCR(port); | |
197 | ||
198 | ret = SB105X_GET_REG(port,reg); | |
199 | SB105X_PUT_LCR(port,lcr); | |
200 | break; | |
201 | case 2: | |
202 | mcr = SB105X_GET_MCR(port); | |
203 | tmp = mcr | SB105X_MCR_P2S; | |
204 | SB105X_PUT_MCR(port,tmp); | |
205 | ||
206 | ret = SB105X_GET_REG(port,reg); | |
207 | ||
208 | SB105X_PUT_MCR(port,mcr); | |
209 | break; | |
210 | case 3: | |
211 | lcr = SB105X_GET_LCR(port); | |
212 | tmp = lcr | SB105X_LCR_BF; | |
213 | SB105X_PUT_LCR(port,tmp); | |
214 | SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P3KEY); | |
215 | ||
216 | ret = SB105X_GET_REG(port,reg); | |
217 | ||
218 | SB105X_PUT_LCR(port,lcr); | |
219 | break; | |
220 | case 4: | |
221 | lcr = SB105X_GET_LCR(port); | |
222 | tmp = lcr | SB105X_LCR_BF; | |
223 | SB105X_PUT_LCR(port,tmp); | |
224 | SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P4KEY); | |
225 | ||
226 | ret = SB105X_GET_REG(port,reg); | |
227 | ||
228 | SB105X_PUT_LCR(port,lcr); | |
229 | break; | |
230 | default: | |
231 | printk(" error invalid page number \n"); | |
232 | return -1; | |
233 | } | |
234 | ||
235 | return ret; | |
236 | } | |
237 | ||
238 | static int sb1054_set_register(struct sb_uart_port * port, int page, int reg, int value) | |
239 | { | |
240 | int lcr = 0; | |
241 | int mcr = 0; | |
242 | int ret = 0; | |
243 | ||
244 | if( page <= 0) | |
245 | { | |
246 | printk(" page 0 can not use this fuction\n"); | |
247 | return -1; | |
248 | } | |
249 | switch(page) | |
250 | { | |
251 | case 1: | |
252 | lcr = SB105X_GET_LCR(port); | |
253 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_DLAB); | |
254 | ||
255 | SB105X_PUT_REG(port,reg,value); | |
256 | ||
257 | SB105X_PUT_LCR(port, lcr); | |
258 | ret = 1; | |
259 | break; | |
260 | case 2: | |
261 | mcr = SB105X_GET_MCR(port); | |
262 | SB105X_PUT_MCR(port, mcr | SB105X_MCR_P2S); | |
263 | ||
264 | SB105X_PUT_REG(port,reg,value); | |
265 | ||
266 | SB105X_PUT_MCR(port, mcr); | |
267 | ret = 1; | |
268 | break; | |
269 | case 3: | |
270 | lcr = SB105X_GET_LCR(port); | |
271 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF); | |
272 | SB105X_PUT_PSR(port, SB105X_PSR_P3KEY); | |
273 | ||
274 | SB105X_PUT_REG(port,reg,value); | |
275 | ||
276 | SB105X_PUT_LCR(port, lcr); | |
277 | ret = 1; | |
278 | break; | |
279 | case 4: | |
280 | lcr = SB105X_GET_LCR(port); | |
281 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF); | |
282 | SB105X_PUT_PSR(port, SB105X_PSR_P4KEY); | |
283 | ||
284 | SB105X_PUT_REG(port,reg,value); | |
285 | ||
286 | SB105X_PUT_LCR(port, lcr); | |
287 | ret = 1; | |
288 | break; | |
289 | default: | |
290 | printk(" error invalid page number \n"); | |
291 | return -1; | |
292 | } | |
293 | ||
294 | return ret; | |
295 | } | |
296 | ||
297 | static int set_multidrop_mode(struct sb_uart_port *port, unsigned int mode) | |
298 | { | |
299 | int mdr = SB105XA_MDR_NPS; | |
300 | ||
301 | if (mode & MDMODE_ENABLE) | |
302 | { | |
303 | mdr |= SB105XA_MDR_MDE; | |
304 | } | |
305 | ||
306 | if (1) //(mode & MDMODE_AUTO) | |
307 | { | |
308 | int efr = 0; | |
309 | mdr |= SB105XA_MDR_AME; | |
310 | efr = sb1054_get_register(port, PAGE_3, SB105X_EFR); | |
311 | efr |= SB105X_EFR_SCD; | |
312 | sb1054_set_register(port, PAGE_3, SB105X_EFR, efr); | |
313 | } | |
314 | ||
315 | sb1054_set_register(port, PAGE_1, SB105XA_MDR, mdr); | |
316 | port->mdmode &= ~0x6; | |
317 | port->mdmode |= mode; | |
318 | printk("[%d] multidrop init: %x\n", port->line, port->mdmode); | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | static int get_multidrop_addr(struct sb_uart_port *port) | |
324 | { | |
325 | return sb1054_get_register(port, PAGE_3, SB105X_XOFF2); | |
326 | } | |
327 | ||
328 | static int set_multidrop_addr(struct sb_uart_port *port, unsigned int addr) | |
329 | { | |
330 | sb1054_set_register(port, PAGE_3, SB105X_XOFF2, addr); | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | static void SendATCommand(struct mp_port * mtpt) | |
336 | { | |
337 | // a t cr lf | |
338 | unsigned char ch[] = {0x61,0x74,0x0d,0x0a,0x0}; | |
339 | unsigned char lineControl; | |
340 | unsigned char i=0; | |
341 | unsigned char Divisor = 0xc; | |
342 | ||
343 | lineControl = serial_inp(mtpt,UART_LCR); | |
344 | serial_outp(mtpt,UART_LCR,(lineControl | UART_LCR_DLAB)); | |
345 | serial_outp(mtpt,UART_DLL,(Divisor & 0xff)); | |
346 | serial_outp(mtpt,UART_DLM,(Divisor & 0xff00)>>8); //baudrate is 4800 | |
347 | ||
348 | ||
349 | serial_outp(mtpt,UART_LCR,lineControl); | |
350 | serial_outp(mtpt,UART_LCR,0x03); // N-8-1 | |
351 | serial_outp(mtpt,UART_FCR,7); | |
352 | serial_outp(mtpt,UART_MCR,0x3); | |
353 | while(ch[i]){ | |
354 | while((serial_inp(mtpt,UART_LSR) & 0x60) !=0x60){ | |
355 | ; | |
356 | } | |
357 | serial_outp(mtpt,0,ch[i++]); | |
358 | } | |
359 | ||
360 | ||
361 | }// end of SendATCommand() | |
362 | ||
363 | static int set_deep_fifo(struct sb_uart_port * port, int status) | |
364 | { | |
365 | int afr_status = 0; | |
366 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); | |
367 | ||
368 | if(status == ENABLE) | |
369 | { | |
370 | afr_status |= SB105X_AFR_AFEN; | |
371 | } | |
372 | else | |
373 | { | |
374 | afr_status &= ~SB105X_AFR_AFEN; | |
375 | } | |
376 | ||
377 | sb1054_set_register(port,PAGE_4,SB105X_AFR,afr_status); | |
378 | sb1054_set_register(port,PAGE_4,SB105X_TTR,ttr[port->line]); | |
379 | sb1054_set_register(port,PAGE_4,SB105X_RTR,rtr[port->line]); | |
380 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); | |
381 | ||
382 | return afr_status; | |
383 | } | |
384 | ||
385 | static int get_device_type(int arg) | |
386 | { | |
387 | int ret; | |
388 | ret = inb(mp_devs[arg].option_reg_addr+MP_OPTR_DIR0); | |
389 | ret = (ret & 0xf0) >> 4; | |
390 | switch (ret) | |
391 | { | |
392 | case DIR_UART_16C550: | |
393 | return PORT_16C55X; | |
394 | case DIR_UART_16C1050: | |
395 | return PORT_16C105X; | |
396 | case DIR_UART_16C1050A: | |
397 | /* | |
398 | if (mtpt->port.line < 2) | |
399 | { | |
400 | return PORT_16C105XA; | |
401 | } | |
402 | else | |
403 | { | |
404 | if (mtpt->device->device_id & 0x50) | |
405 | { | |
406 | return PORT_16C55X; | |
407 | } | |
408 | else | |
409 | { | |
410 | return PORT_16C105X; | |
411 | } | |
412 | }*/ | |
413 | return PORT_16C105XA; | |
414 | default: | |
415 | return PORT_UNKNOWN; | |
416 | } | |
417 | ||
418 | } | |
419 | static int get_deep_fifo(struct sb_uart_port * port) | |
420 | { | |
421 | int afr_status = 0; | |
422 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); | |
423 | return afr_status; | |
424 | } | |
425 | ||
426 | static int set_auto_rts(struct sb_uart_port *port, int status) | |
427 | { | |
428 | int atr_status = 0; | |
429 | ||
430 | #if 0 | |
431 | int efr_status = 0; | |
432 | ||
433 | efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR); | |
434 | if(status == ENABLE) | |
435 | efr_status |= SB105X_EFR_ARTS; | |
436 | else | |
437 | efr_status &= ~SB105X_EFR_ARTS; | |
438 | sb1054_set_register(port,PAGE_3,SB105X_EFR,efr_status); | |
439 | efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR); | |
440 | #endif | |
441 | ||
442 | //ATR | |
443 | atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR); | |
444 | switch(status) | |
445 | { | |
446 | case RS422PTP: | |
447 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_A80); | |
448 | break; | |
449 | case RS422MD: | |
450 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); | |
451 | break; | |
452 | case RS485NE: | |
453 | atr_status = (SB105X_ATR_RCMS) | (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); | |
454 | break; | |
455 | case RS485ECHO: | |
456 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); | |
457 | break; | |
458 | } | |
459 | ||
460 | sb1054_set_register(port,PAGE_3,SB105X_ATR,atr_status); | |
461 | atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR); | |
462 | ||
463 | return atr_status; | |
464 | } | |
465 | ||
466 | static void mp_stop(struct tty_struct *tty) | |
467 | { | |
468 | struct sb_uart_state *state = tty->driver_data; | |
469 | struct sb_uart_port *port = state->port; | |
470 | unsigned long flags; | |
471 | ||
472 | spin_lock_irqsave(&port->lock, flags); | |
473 | port->ops->stop_tx(port); | |
474 | spin_unlock_irqrestore(&port->lock, flags); | |
475 | } | |
476 | ||
477 | static void __mp_start(struct tty_struct *tty) | |
478 | { | |
479 | struct sb_uart_state *state = tty->driver_data; | |
480 | struct sb_uart_port *port = state->port; | |
481 | ||
482 | if (!uart_circ_empty(&state->info->xmit) && state->info->xmit.buf && | |
483 | !tty->stopped && !tty->hw_stopped) | |
484 | port->ops->start_tx(port); | |
485 | } | |
486 | ||
487 | static void mp_start(struct tty_struct *tty) | |
488 | { | |
489 | __mp_start(tty); | |
490 | } | |
491 | ||
492 | static void mp_tasklet_action(unsigned long data) | |
493 | { | |
494 | struct sb_uart_state *state = (struct sb_uart_state *)data; | |
495 | struct tty_struct *tty; | |
496 | ||
497 | printk("tasklet is called!\n"); | |
498 | tty = state->info->tty; | |
499 | tty_wakeup(tty); | |
500 | } | |
501 | ||
502 | static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear) | |
503 | { | |
504 | unsigned int old; | |
505 | ||
506 | old = port->mctrl; | |
507 | port->mctrl = (old & ~clear) | set; | |
508 | if (old != port->mctrl) | |
509 | port->ops->set_mctrl(port, port->mctrl); | |
510 | } | |
511 | ||
512 | #define uart_set_mctrl(port,set) mp_update_mctrl(port,set,0) | |
513 | #define uart_clear_mctrl(port,clear) mp_update_mctrl(port,0,clear) | |
514 | ||
515 | static int mp_startup(struct sb_uart_state *state, int init_hw) | |
516 | { | |
517 | struct sb_uart_info *info = state->info; | |
518 | struct sb_uart_port *port = state->port; | |
519 | unsigned long page; | |
520 | int retval = 0; | |
521 | ||
522 | if (info->flags & UIF_INITIALIZED) | |
523 | return 0; | |
524 | ||
525 | if (info->tty) | |
526 | set_bit(TTY_IO_ERROR, &info->tty->flags); | |
527 | ||
528 | if (port->type == PORT_UNKNOWN) | |
529 | return 0; | |
530 | ||
531 | if (!info->xmit.buf) { | |
532 | page = get_zeroed_page(GFP_KERNEL); | |
533 | if (!page) | |
534 | return -ENOMEM; | |
535 | ||
536 | info->xmit.buf = (unsigned char *) page; | |
537 | ||
538 | uart_circ_clear(&info->xmit); | |
539 | } | |
540 | ||
541 | retval = port->ops->startup(port); | |
542 | if (retval == 0) { | |
543 | if (init_hw) { | |
544 | mp_change_speed(state, NULL); | |
545 | ||
546 | if (info->tty->termios.c_cflag & CBAUD) | |
547 | uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR); | |
548 | } | |
549 | ||
550 | info->flags |= UIF_INITIALIZED; | |
551 | ||
552 | ||
553 | clear_bit(TTY_IO_ERROR, &info->tty->flags); | |
554 | } | |
555 | ||
556 | if (retval && capable(CAP_SYS_ADMIN)) | |
557 | retval = 0; | |
558 | ||
559 | return retval; | |
560 | } | |
561 | ||
562 | static void mp_shutdown(struct sb_uart_state *state) | |
563 | { | |
564 | struct sb_uart_info *info = state->info; | |
565 | struct sb_uart_port *port = state->port; | |
566 | ||
567 | if (info->tty) | |
568 | set_bit(TTY_IO_ERROR, &info->tty->flags); | |
569 | ||
570 | if (info->flags & UIF_INITIALIZED) { | |
571 | info->flags &= ~UIF_INITIALIZED; | |
572 | ||
573 | if (!info->tty || (info->tty->termios.c_cflag & HUPCL)) | |
574 | uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); | |
575 | ||
576 | wake_up_interruptible(&info->delta_msr_wait); | |
577 | ||
578 | port->ops->shutdown(port); | |
579 | ||
580 | synchronize_irq(port->irq); | |
581 | } | |
582 | tasklet_kill(&info->tlet); | |
583 | ||
584 | if (info->xmit.buf) { | |
585 | free_page((unsigned long)info->xmit.buf); | |
586 | info->xmit.buf = NULL; | |
587 | } | |
588 | } | |
589 | ||
590 | static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios) | |
591 | { | |
592 | struct tty_struct *tty = state->info->tty; | |
593 | struct sb_uart_port *port = state->port; | |
594 | ||
595 | if (!tty || port->type == PORT_UNKNOWN) | |
596 | return; | |
597 | ||
598 | if (tty->termios.c_cflag & CRTSCTS) | |
599 | state->info->flags |= UIF_CTS_FLOW; | |
600 | else | |
601 | state->info->flags &= ~UIF_CTS_FLOW; | |
602 | ||
603 | if (tty->termios.c_cflag & CLOCAL) | |
604 | state->info->flags &= ~UIF_CHECK_CD; | |
605 | else | |
606 | state->info->flags |= UIF_CHECK_CD; | |
607 | ||
608 | port->ops->set_termios(port, &tty->termios, old_termios); | |
609 | } | |
610 | ||
611 | static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c) | |
612 | { | |
613 | unsigned long flags; | |
614 | int ret = 0; | |
615 | ||
616 | if (!circ->buf) | |
617 | return 0; | |
618 | ||
619 | spin_lock_irqsave(&port->lock, flags); | |
620 | if (uart_circ_chars_free(circ) != 0) { | |
621 | circ->buf[circ->head] = c; | |
622 | circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1); | |
623 | ret = 1; | |
624 | } | |
625 | spin_unlock_irqrestore(&port->lock, flags); | |
626 | return ret; | |
627 | } | |
628 | ||
629 | static int mp_put_char(struct tty_struct *tty, unsigned char ch) | |
630 | { | |
631 | struct sb_uart_state *state = tty->driver_data; | |
632 | ||
633 | return __mp_put_char(state->port, &state->info->xmit, ch); | |
634 | } | |
635 | ||
636 | static void mp_put_chars(struct tty_struct *tty) | |
637 | { | |
638 | mp_start(tty); | |
639 | } | |
640 | ||
641 | static int mp_write(struct tty_struct *tty, const unsigned char * buf, int count) | |
642 | { | |
643 | struct sb_uart_state *state = tty->driver_data; | |
644 | struct sb_uart_port *port; | |
645 | struct circ_buf *circ; | |
646 | int c, ret = 0; | |
647 | ||
648 | if (!state || !state->info) { | |
649 | return -EL3HLT; | |
650 | } | |
651 | ||
652 | port = state->port; | |
653 | circ = &state->info->xmit; | |
654 | ||
655 | if (!circ->buf) | |
656 | return 0; | |
657 | ||
658 | while (1) { | |
659 | c = CIRC_SPACE_TO_END(circ->head, circ->tail, UART_XMIT_SIZE); | |
660 | if (count < c) | |
661 | c = count; | |
662 | if (c <= 0) | |
663 | break; | |
664 | memcpy(circ->buf + circ->head, buf, c); | |
665 | ||
666 | circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1); | |
667 | buf += c; | |
668 | count -= c; | |
669 | ret += c; | |
670 | } | |
671 | mp_start(tty); | |
672 | return ret; | |
673 | } | |
674 | ||
675 | static int mp_write_room(struct tty_struct *tty) | |
676 | { | |
677 | struct sb_uart_state *state = tty->driver_data; | |
678 | ||
679 | return uart_circ_chars_free(&state->info->xmit); | |
680 | } | |
681 | ||
682 | static int mp_chars_in_buffer(struct tty_struct *tty) | |
683 | { | |
684 | struct sb_uart_state *state = tty->driver_data; | |
685 | ||
686 | return uart_circ_chars_pending(&state->info->xmit); | |
687 | } | |
688 | ||
689 | static void mp_flush_buffer(struct tty_struct *tty) | |
690 | { | |
691 | struct sb_uart_state *state = tty->driver_data; | |
b0ab0236 | 692 | struct sb_uart_port *port; |
68a81291 SR |
693 | unsigned long flags; |
694 | ||
695 | if (!state || !state->info) { | |
696 | return; | |
697 | } | |
698 | ||
b0ab0236 | 699 | port = state->port; |
68a81291 SR |
700 | spin_lock_irqsave(&port->lock, flags); |
701 | uart_circ_clear(&state->info->xmit); | |
702 | spin_unlock_irqrestore(&port->lock, flags); | |
703 | wake_up_interruptible(&tty->write_wait); | |
704 | tty_wakeup(tty); | |
705 | } | |
706 | ||
707 | static void mp_send_xchar(struct tty_struct *tty, char ch) | |
708 | { | |
709 | struct sb_uart_state *state = tty->driver_data; | |
710 | struct sb_uart_port *port = state->port; | |
711 | unsigned long flags; | |
712 | ||
713 | if (port->ops->send_xchar) | |
714 | port->ops->send_xchar(port, ch); | |
715 | else { | |
716 | port->x_char = ch; | |
717 | if (ch) { | |
718 | spin_lock_irqsave(&port->lock, flags); | |
719 | port->ops->start_tx(port); | |
720 | spin_unlock_irqrestore(&port->lock, flags); | |
721 | } | |
722 | } | |
723 | } | |
724 | ||
725 | static void mp_throttle(struct tty_struct *tty) | |
726 | { | |
727 | struct sb_uart_state *state = tty->driver_data; | |
728 | ||
729 | if (I_IXOFF(tty)) | |
730 | mp_send_xchar(tty, STOP_CHAR(tty)); | |
731 | ||
732 | if (tty->termios.c_cflag & CRTSCTS) | |
733 | uart_clear_mctrl(state->port, TIOCM_RTS); | |
734 | } | |
735 | ||
736 | static void mp_unthrottle(struct tty_struct *tty) | |
737 | { | |
738 | struct sb_uart_state *state = tty->driver_data; | |
739 | struct sb_uart_port *port = state->port; | |
740 | ||
741 | if (I_IXOFF(tty)) { | |
742 | if (port->x_char) | |
743 | port->x_char = 0; | |
744 | else | |
745 | mp_send_xchar(tty, START_CHAR(tty)); | |
746 | } | |
747 | ||
748 | if (tty->termios.c_cflag & CRTSCTS) | |
749 | uart_set_mctrl(port, TIOCM_RTS); | |
750 | } | |
751 | ||
752 | static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo) | |
753 | { | |
754 | struct sb_uart_port *port = state->port; | |
755 | struct serial_struct tmp; | |
756 | ||
757 | memset(&tmp, 0, sizeof(tmp)); | |
758 | tmp.type = port->type; | |
759 | tmp.line = port->line; | |
760 | tmp.port = port->iobase; | |
761 | if (HIGH_BITS_OFFSET) | |
762 | tmp.port_high = (long) port->iobase >> HIGH_BITS_OFFSET; | |
763 | tmp.irq = port->irq; | |
764 | tmp.flags = port->flags; | |
765 | tmp.xmit_fifo_size = port->fifosize; | |
766 | tmp.baud_base = port->uartclk / 16; | |
767 | tmp.close_delay = state->close_delay; | |
768 | tmp.closing_wait = state->closing_wait == USF_CLOSING_WAIT_NONE ? | |
769 | ASYNC_CLOSING_WAIT_NONE : | |
770 | state->closing_wait; | |
771 | tmp.custom_divisor = port->custom_divisor; | |
772 | tmp.hub6 = port->hub6; | |
773 | tmp.io_type = port->iotype; | |
774 | tmp.iomem_reg_shift = port->regshift; | |
775 | tmp.iomem_base = (void *)port->mapbase; | |
776 | ||
777 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
778 | return -EFAULT; | |
779 | return 0; | |
780 | } | |
781 | ||
782 | static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo) | |
783 | { | |
784 | struct serial_struct new_serial; | |
785 | struct sb_uart_port *port = state->port; | |
786 | unsigned long new_port; | |
787 | unsigned int change_irq, change_port, closing_wait; | |
788 | unsigned int old_custom_divisor; | |
789 | unsigned int old_flags, new_flags; | |
790 | int retval = 0; | |
791 | ||
792 | if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) | |
793 | return -EFAULT; | |
794 | ||
795 | new_port = new_serial.port; | |
796 | if (HIGH_BITS_OFFSET) | |
797 | new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET; | |
798 | ||
799 | new_serial.irq = irq_canonicalize(new_serial.irq); | |
800 | ||
801 | closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ? | |
802 | USF_CLOSING_WAIT_NONE : new_serial.closing_wait; | |
803 | MP_STATE_LOCK(state); | |
804 | ||
805 | change_irq = new_serial.irq != port->irq; | |
806 | change_port = new_port != port->iobase || | |
807 | (unsigned long)new_serial.iomem_base != port->mapbase || | |
808 | new_serial.hub6 != port->hub6 || | |
809 | new_serial.io_type != port->iotype || | |
810 | new_serial.iomem_reg_shift != port->regshift || | |
811 | new_serial.type != port->type; | |
812 | old_flags = port->flags; | |
813 | new_flags = new_serial.flags; | |
814 | old_custom_divisor = port->custom_divisor; | |
815 | ||
816 | if (!capable(CAP_SYS_ADMIN)) { | |
817 | retval = -EPERM; | |
818 | if (change_irq || change_port || | |
819 | (new_serial.baud_base != port->uartclk / 16) || | |
820 | (new_serial.close_delay != state->close_delay) || | |
821 | (closing_wait != state->closing_wait) || | |
822 | (new_serial.xmit_fifo_size != port->fifosize) || | |
823 | (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0)) | |
824 | goto exit; | |
825 | port->flags = ((port->flags & ~UPF_USR_MASK) | | |
826 | (new_flags & UPF_USR_MASK)); | |
827 | port->custom_divisor = new_serial.custom_divisor; | |
828 | goto check_and_exit; | |
829 | } | |
830 | ||
831 | if (port->ops->verify_port) | |
832 | retval = port->ops->verify_port(port, &new_serial); | |
833 | ||
834 | if ((new_serial.irq >= NR_IRQS) || (new_serial.irq < 0) || | |
835 | (new_serial.baud_base < 9600)) | |
836 | retval = -EINVAL; | |
837 | ||
838 | if (retval) | |
839 | goto exit; | |
840 | ||
841 | if (change_port || change_irq) { | |
842 | retval = -EBUSY; | |
843 | ||
844 | if (uart_users(state) > 1) | |
845 | goto exit; | |
846 | ||
847 | mp_shutdown(state); | |
848 | } | |
849 | ||
850 | if (change_port) { | |
851 | unsigned long old_iobase, old_mapbase; | |
852 | unsigned int old_type, old_iotype, old_hub6, old_shift; | |
853 | ||
854 | old_iobase = port->iobase; | |
855 | old_mapbase = port->mapbase; | |
856 | old_type = port->type; | |
857 | old_hub6 = port->hub6; | |
858 | old_iotype = port->iotype; | |
859 | old_shift = port->regshift; | |
860 | ||
861 | if (old_type != PORT_UNKNOWN) | |
862 | port->ops->release_port(port); | |
863 | ||
864 | port->iobase = new_port; | |
865 | port->type = new_serial.type; | |
866 | port->hub6 = new_serial.hub6; | |
867 | port->iotype = new_serial.io_type; | |
868 | port->regshift = new_serial.iomem_reg_shift; | |
869 | port->mapbase = (unsigned long)new_serial.iomem_base; | |
870 | ||
871 | if (port->type != PORT_UNKNOWN) { | |
872 | retval = port->ops->request_port(port); | |
873 | } else { | |
874 | retval = 0; | |
875 | } | |
876 | ||
877 | if (retval && old_type != PORT_UNKNOWN) { | |
878 | port->iobase = old_iobase; | |
879 | port->type = old_type; | |
880 | port->hub6 = old_hub6; | |
881 | port->iotype = old_iotype; | |
882 | port->regshift = old_shift; | |
883 | port->mapbase = old_mapbase; | |
884 | retval = port->ops->request_port(port); | |
885 | if (retval) | |
886 | port->type = PORT_UNKNOWN; | |
887 | ||
888 | retval = -EBUSY; | |
889 | } | |
890 | } | |
891 | ||
892 | port->irq = new_serial.irq; | |
893 | port->uartclk = new_serial.baud_base * 16; | |
894 | port->flags = (port->flags & ~UPF_CHANGE_MASK) | | |
895 | (new_flags & UPF_CHANGE_MASK); | |
896 | port->custom_divisor = new_serial.custom_divisor; | |
897 | state->close_delay = new_serial.close_delay; | |
898 | state->closing_wait = closing_wait; | |
899 | port->fifosize = new_serial.xmit_fifo_size; | |
900 | if (state->info->tty) | |
901 | state->info->tty->low_latency = | |
902 | (port->flags & UPF_LOW_LATENCY) ? 1 : 0; | |
903 | ||
904 | check_and_exit: | |
905 | retval = 0; | |
906 | if (port->type == PORT_UNKNOWN) | |
907 | goto exit; | |
908 | if (state->info->flags & UIF_INITIALIZED) { | |
909 | if (((old_flags ^ port->flags) & UPF_SPD_MASK) || | |
910 | old_custom_divisor != port->custom_divisor) { | |
911 | if (port->flags & UPF_SPD_MASK) { | |
912 | printk(KERN_NOTICE | |
913 | "%s sets custom speed on ttyMP%d. This " | |
914 | "is deprecated.\n", current->comm, | |
915 | port->line); | |
916 | } | |
917 | mp_change_speed(state, NULL); | |
918 | } | |
919 | } else | |
920 | retval = mp_startup(state, 1); | |
921 | exit: | |
922 | MP_STATE_UNLOCK(state); | |
923 | return retval; | |
924 | } | |
925 | ||
926 | ||
927 | static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value) | |
928 | { | |
929 | struct sb_uart_port *port = state->port; | |
930 | unsigned int result; | |
931 | ||
932 | result = port->ops->tx_empty(port); | |
933 | ||
934 | if (port->x_char || | |
935 | ((uart_circ_chars_pending(&state->info->xmit) > 0) && | |
936 | !state->info->tty->stopped && !state->info->tty->hw_stopped)) | |
937 | result &= ~TIOCSER_TEMT; | |
938 | ||
939 | return put_user(result, value); | |
940 | } | |
941 | ||
942 | static int mp_tiocmget(struct tty_struct *tty) | |
943 | { | |
944 | struct sb_uart_state *state = tty->driver_data; | |
945 | struct sb_uart_port *port = state->port; | |
946 | int result = -EIO; | |
947 | ||
948 | MP_STATE_LOCK(state); | |
949 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { | |
950 | result = port->mctrl; | |
951 | spin_lock_irq(&port->lock); | |
952 | result |= port->ops->get_mctrl(port); | |
953 | spin_unlock_irq(&port->lock); | |
954 | } | |
955 | MP_STATE_UNLOCK(state); | |
956 | return result; | |
957 | } | |
958 | ||
959 | static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) | |
960 | { | |
961 | struct sb_uart_state *state = tty->driver_data; | |
962 | struct sb_uart_port *port = state->port; | |
963 | int ret = -EIO; | |
964 | ||
965 | ||
966 | MP_STATE_LOCK(state); | |
967 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { | |
968 | mp_update_mctrl(port, set, clear); | |
969 | ret = 0; | |
970 | } | |
971 | MP_STATE_UNLOCK(state); | |
972 | ||
973 | return ret; | |
974 | } | |
975 | ||
976 | static int mp_break_ctl(struct tty_struct *tty, int break_state) | |
977 | { | |
978 | struct sb_uart_state *state = tty->driver_data; | |
979 | struct sb_uart_port *port = state->port; | |
980 | ||
981 | MP_STATE_LOCK(state); | |
982 | ||
983 | if (port->type != PORT_UNKNOWN) | |
984 | port->ops->break_ctl(port, break_state); | |
985 | ||
986 | MP_STATE_UNLOCK(state); | |
987 | return 0; | |
988 | } | |
989 | ||
990 | static int mp_do_autoconfig(struct sb_uart_state *state) | |
991 | { | |
992 | struct sb_uart_port *port = state->port; | |
993 | int flags, ret; | |
994 | ||
995 | if (!capable(CAP_SYS_ADMIN)) | |
996 | return -EPERM; | |
997 | ||
998 | if (mutex_lock_interruptible(&state->mutex)) | |
999 | return -ERESTARTSYS; | |
1000 | ret = -EBUSY; | |
1001 | if (uart_users(state) == 1) { | |
1002 | mp_shutdown(state); | |
1003 | ||
1004 | if (port->type != PORT_UNKNOWN) | |
1005 | port->ops->release_port(port); | |
1006 | ||
1007 | flags = UART_CONFIG_TYPE; | |
1008 | if (port->flags & UPF_AUTO_IRQ) | |
1009 | flags |= UART_CONFIG_IRQ; | |
1010 | ||
1011 | port->ops->config_port(port, flags); | |
1012 | ||
1013 | ret = mp_startup(state, 1); | |
1014 | } | |
1015 | MP_STATE_UNLOCK(state); | |
1016 | return ret; | |
1017 | } | |
1018 | ||
1019 | static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg) | |
1020 | { | |
1021 | struct sb_uart_port *port = state->port; | |
1022 | DECLARE_WAITQUEUE(wait, current); | |
1023 | struct sb_uart_icount cprev, cnow; | |
1024 | int ret; | |
1025 | ||
1026 | spin_lock_irq(&port->lock); | |
1027 | memcpy(&cprev, &port->icount, sizeof(struct sb_uart_icount)); | |
1028 | ||
1029 | port->ops->enable_ms(port); | |
1030 | spin_unlock_irq(&port->lock); | |
1031 | ||
1032 | add_wait_queue(&state->info->delta_msr_wait, &wait); | |
1033 | for (;;) { | |
1034 | spin_lock_irq(&port->lock); | |
1035 | memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount)); | |
1036 | spin_unlock_irq(&port->lock); | |
1037 | ||
1038 | set_current_state(TASK_INTERRUPTIBLE); | |
1039 | ||
1040 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
1041 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
1042 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
1043 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { | |
1044 | ret = 0; | |
1045 | break; | |
1046 | } | |
1047 | ||
1048 | schedule(); | |
1049 | ||
1050 | if (signal_pending(current)) { | |
1051 | ret = -ERESTARTSYS; | |
1052 | break; | |
1053 | } | |
1054 | ||
1055 | cprev = cnow; | |
1056 | } | |
1057 | ||
1058 | current->state = TASK_RUNNING; | |
1059 | remove_wait_queue(&state->info->delta_msr_wait, &wait); | |
1060 | ||
1061 | return ret; | |
1062 | } | |
1063 | ||
1064 | static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt) | |
1065 | { | |
1066 | struct serial_icounter_struct icount; | |
1067 | struct sb_uart_icount cnow; | |
1068 | struct sb_uart_port *port = state->port; | |
1069 | ||
1070 | spin_lock_irq(&port->lock); | |
1071 | memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount)); | |
1072 | spin_unlock_irq(&port->lock); | |
1073 | ||
1074 | icount.cts = cnow.cts; | |
1075 | icount.dsr = cnow.dsr; | |
1076 | icount.rng = cnow.rng; | |
1077 | icount.dcd = cnow.dcd; | |
1078 | icount.rx = cnow.rx; | |
1079 | icount.tx = cnow.tx; | |
1080 | icount.frame = cnow.frame; | |
1081 | icount.overrun = cnow.overrun; | |
1082 | icount.parity = cnow.parity; | |
1083 | icount.brk = cnow.brk; | |
1084 | icount.buf_overrun = cnow.buf_overrun; | |
1085 | ||
1086 | return copy_to_user(icnt, &icount, sizeof(icount)) ? -EFAULT : 0; | |
1087 | } | |
1088 | ||
1089 | static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) | |
1090 | { | |
1091 | struct sb_uart_state *state = tty->driver_data; | |
1092 | struct mp_port *info = (struct mp_port *)state->port; | |
1093 | int ret = -ENOIOCTLCMD; | |
1094 | ||
1095 | ||
1096 | switch (cmd) { | |
1097 | case TIOCSMULTIDROP: | |
1098 | /* set multi-drop mode enable or disable, and default operation mode is H/W mode */ | |
1099 | if (info->port.type == PORT_16C105XA) | |
1100 | { | |
1101 | //arg &= ~0x6; | |
1102 | //state->port->mdmode = 0; | |
1103 | return set_multidrop_mode((struct sb_uart_port *)info, (unsigned int)arg); | |
1104 | } | |
1105 | ret = -ENOTSUPP; | |
1106 | break; | |
1107 | case GETDEEPFIFO: | |
1108 | ret = get_deep_fifo(state->port); | |
1109 | return ret; | |
1110 | case SETDEEPFIFO: | |
1111 | ret = set_deep_fifo(state->port,arg); | |
1112 | deep[state->port->line] = arg; | |
1113 | return ret; | |
1114 | case SETTTR: | |
1115 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ | |
1116 | ret = sb1054_set_register(state->port,PAGE_4,SB105X_TTR,arg); | |
1117 | ttr[state->port->line] = arg; | |
1118 | } | |
1119 | return ret; | |
1120 | case SETRTR: | |
1121 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ | |
1122 | ret = sb1054_set_register(state->port,PAGE_4,SB105X_RTR,arg); | |
1123 | rtr[state->port->line] = arg; | |
1124 | } | |
1125 | return ret; | |
1126 | case GETTTR: | |
1127 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ | |
1128 | ret = sb1054_get_register(state->port,PAGE_4,SB105X_TTR); | |
1129 | } | |
1130 | return ret; | |
1131 | case GETRTR: | |
1132 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ | |
1133 | ret = sb1054_get_register(state->port,PAGE_4,SB105X_RTR); | |
1134 | } | |
1135 | return ret; | |
1136 | ||
1137 | case SETFCR: | |
1138 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ | |
1139 | ret = sb1054_set_register(state->port,PAGE_1,SB105X_FCR,arg); | |
1140 | } | |
1141 | else{ | |
1142 | serial_out(info,2,arg); | |
1143 | } | |
1144 | ||
1145 | return ret; | |
1146 | case TIOCSMDADDR: | |
1147 | /* set multi-drop address */ | |
1148 | if (info->port.type == PORT_16C105XA) | |
1149 | { | |
1150 | state->port->mdmode |= MDMODE_ADDR; | |
1151 | return set_multidrop_addr((struct sb_uart_port *)info, (unsigned int)arg); | |
1152 | } | |
1153 | ret = -ENOTSUPP; | |
1154 | break; | |
1155 | ||
1156 | case TIOCGMDADDR: | |
1157 | /* set multi-drop address */ | |
1158 | if ((info->port.type == PORT_16C105XA) && (state->port->mdmode & MDMODE_ADDR)) | |
1159 | { | |
1160 | return get_multidrop_addr((struct sb_uart_port *)info); | |
1161 | } | |
1162 | ret = -ENOTSUPP; | |
1163 | break; | |
1164 | ||
1165 | case TIOCSENDADDR: | |
1166 | /* send address in multi-drop mode */ | |
1167 | if ((info->port.type == PORT_16C105XA) | |
1168 | && (state->port->mdmode & (MDMODE_ENABLE))) | |
1169 | { | |
1170 | if (mp_chars_in_buffer(tty) > 0) | |
1171 | { | |
1172 | tty_wait_until_sent(tty, 0); | |
1173 | } | |
1174 | //while ((serial_in(info, UART_LSR) & 0x60) != 0x60); | |
1175 | //while (sb1054_get_register(state->port, PAGE_2, SB105X_TFCR) != 0); | |
1176 | while ((serial_in(info, UART_LSR) & 0x60) != 0x60); | |
1177 | serial_out(info, UART_SCR, (int)arg); | |
1178 | } | |
1179 | break; | |
1180 | ||
1181 | case TIOCGSERIAL: | |
1182 | ret = mp_get_info(state, (struct serial_struct *)arg); | |
1183 | break; | |
1184 | ||
1185 | case TIOCSSERIAL: | |
1186 | ret = mp_set_info(state, (struct serial_struct *)arg); | |
1187 | break; | |
1188 | ||
1189 | case TIOCSERCONFIG: | |
1190 | ret = mp_do_autoconfig(state); | |
1191 | break; | |
1192 | ||
1193 | case TIOCSERGWILD: /* obsolete */ | |
1194 | case TIOCSERSWILD: /* obsolete */ | |
1195 | ret = 0; | |
1196 | break; | |
1197 | /* for Multiport */ | |
1198 | case TIOCGNUMOFPORT: /* Get number of ports */ | |
1199 | return NR_PORTS; | |
1200 | case TIOCGGETDEVID: | |
1201 | return mp_devs[arg].device_id; | |
1202 | case TIOCGGETREV: | |
1203 | return mp_devs[arg].revision; | |
1204 | case TIOCGGETNRPORTS: | |
1205 | return mp_devs[arg].nr_ports; | |
1206 | case TIOCGGETBDNO: | |
1207 | return NR_BOARD; | |
1208 | case TIOCGGETINTERFACE: | |
1209 | if (mp_devs[arg].revision == 0xc0) | |
1210 | { | |
1211 | /* for SB16C1053APCI */ | |
1212 | return (sb1053a_get_interface(info, info->port.line)); | |
1213 | } | |
1214 | else | |
1215 | { | |
1216 | return (inb(mp_devs[arg].option_reg_addr+MP_OPTR_IIR0+(state->port->line/8))); | |
1217 | } | |
1218 | case TIOCGGETPORTTYPE: | |
1219 | ret = get_device_type(arg);; | |
1220 | return ret; | |
1221 | case TIOCSMULTIECHO: /* set to multi-drop mode(RS422) or echo mode(RS485)*/ | |
1222 | outb( ( inb(info->interface_config_addr) & ~0x03 ) | 0x01 , | |
1223 | info->interface_config_addr); | |
1224 | return 0; | |
1225 | case TIOCSPTPNOECHO: /* set to multi-drop mode(RS422) or echo mode(RS485) */ | |
1226 | outb( ( inb(info->interface_config_addr) & ~0x03 ) , | |
1227 | info->interface_config_addr); | |
1228 | return 0; | |
1229 | } | |
1230 | ||
1231 | if (ret != -ENOIOCTLCMD) | |
1232 | goto out; | |
1233 | ||
1234 | if (tty->flags & (1 << TTY_IO_ERROR)) { | |
1235 | ret = -EIO; | |
1236 | goto out; | |
1237 | } | |
1238 | ||
1239 | switch (cmd) { | |
1240 | case TIOCMIWAIT: | |
1241 | ret = mp_wait_modem_status(state, arg); | |
1242 | break; | |
1243 | ||
1244 | case TIOCGICOUNT: | |
1245 | ret = mp_get_count(state, (struct serial_icounter_struct *)arg); | |
1246 | break; | |
1247 | } | |
1248 | ||
1249 | if (ret != -ENOIOCTLCMD) | |
1250 | goto out; | |
1251 | ||
1252 | MP_STATE_LOCK(state); | |
1253 | switch (cmd) { | |
1254 | case TIOCSERGETLSR: /* Get line status register */ | |
1255 | ret = mp_get_lsr_info(state, (unsigned int *)arg); | |
1256 | break; | |
1257 | ||
1258 | default: { | |
1259 | struct sb_uart_port *port = state->port; | |
1260 | if (port->ops->ioctl) | |
1261 | ret = port->ops->ioctl(port, cmd, arg); | |
1262 | break; | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | MP_STATE_UNLOCK(state); | |
1267 | out: | |
1268 | return ret; | |
1269 | } | |
1270 | ||
1271 | static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios) | |
1272 | { | |
1273 | struct sb_uart_state *state = tty->driver_data; | |
1274 | unsigned long flags; | |
1275 | unsigned int cflag = tty->termios.c_cflag; | |
1276 | ||
1277 | #define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) | |
1278 | ||
1279 | if ((cflag ^ old_termios->c_cflag) == 0 && | |
1280 | RELEVANT_IFLAG(tty->termios.c_iflag ^ old_termios->c_iflag) == 0) | |
1281 | return; | |
1282 | ||
1283 | mp_change_speed(state, old_termios); | |
1284 | ||
1285 | if ((old_termios->c_cflag & CBAUD) && !(cflag & CBAUD)) | |
1286 | uart_clear_mctrl(state->port, TIOCM_RTS | TIOCM_DTR); | |
1287 | ||
1288 | if (!(old_termios->c_cflag & CBAUD) && (cflag & CBAUD)) { | |
1289 | unsigned int mask = TIOCM_DTR; | |
1290 | if (!(cflag & CRTSCTS) || | |
1291 | !test_bit(TTY_THROTTLED, &tty->flags)) | |
1292 | mask |= TIOCM_RTS; | |
1293 | uart_set_mctrl(state->port, mask); | |
1294 | } | |
1295 | ||
1296 | if ((old_termios->c_cflag & CRTSCTS) && !(cflag & CRTSCTS)) { | |
1297 | spin_lock_irqsave(&state->port->lock, flags); | |
1298 | tty->hw_stopped = 0; | |
1299 | __mp_start(tty); | |
1300 | spin_unlock_irqrestore(&state->port->lock, flags); | |
1301 | } | |
1302 | ||
1303 | if (!(old_termios->c_cflag & CRTSCTS) && (cflag & CRTSCTS)) { | |
1304 | spin_lock_irqsave(&state->port->lock, flags); | |
1305 | if (!(state->port->ops->get_mctrl(state->port) & TIOCM_CTS)) { | |
1306 | tty->hw_stopped = 1; | |
1307 | state->port->ops->stop_tx(state->port); | |
1308 | } | |
1309 | spin_unlock_irqrestore(&state->port->lock, flags); | |
1310 | } | |
1311 | } | |
1312 | ||
1313 | static void mp_close(struct tty_struct *tty, struct file *filp) | |
1314 | { | |
1315 | struct sb_uart_state *state = tty->driver_data; | |
1316 | struct sb_uart_port *port; | |
1317 | ||
1318 | printk("mp_close!\n"); | |
1319 | if (!state || !state->port) | |
1320 | return; | |
1321 | ||
1322 | port = state->port; | |
1323 | ||
1324 | printk("close1 %d\n", __LINE__); | |
1325 | MP_STATE_LOCK(state); | |
1326 | ||
1327 | printk("close2 %d\n", __LINE__); | |
1328 | if (tty_hung_up_p(filp)) | |
1329 | goto done; | |
1330 | ||
1331 | printk("close3 %d\n", __LINE__); | |
1332 | if ((tty->count == 1) && (state->count != 1)) { | |
1333 | printk("mp_close: bad serial port count; tty->count is 1, " | |
1334 | "state->count is %d\n", state->count); | |
1335 | state->count = 1; | |
1336 | } | |
1337 | printk("close4 %d\n", __LINE__); | |
1338 | if (--state->count < 0) { | |
1339 | printk("rs_close: bad serial port count for ttyMP%d: %d\n", | |
1340 | port->line, state->count); | |
1341 | state->count = 0; | |
1342 | } | |
1343 | if (state->count) | |
1344 | goto done; | |
1345 | ||
1346 | tty->closing = 1; | |
1347 | ||
1348 | printk("close5 %d\n", __LINE__); | |
1349 | if (state->closing_wait != USF_CLOSING_WAIT_NONE) | |
1350 | tty_wait_until_sent(tty, state->closing_wait); | |
1351 | ||
1352 | printk("close6 %d\n", __LINE__); | |
1353 | if (state->info->flags & UIF_INITIALIZED) { | |
1354 | unsigned long flags; | |
1355 | spin_lock_irqsave(&port->lock, flags); | |
1356 | port->ops->stop_rx(port); | |
1357 | spin_unlock_irqrestore(&port->lock, flags); | |
1358 | mp_wait_until_sent(tty, port->timeout); | |
1359 | } | |
1360 | printk("close7 %d\n", __LINE__); | |
1361 | ||
1362 | mp_shutdown(state); | |
1363 | printk("close8 %d\n", __LINE__); | |
1364 | mp_flush_buffer(tty); | |
1365 | tty_ldisc_flush(tty); | |
1366 | tty->closing = 0; | |
1367 | state->info->tty = NULL; | |
1368 | if (state->info->blocked_open) | |
1369 | { | |
1370 | if (state->close_delay) | |
1371 | { | |
1372 | set_current_state(TASK_INTERRUPTIBLE); | |
1373 | schedule_timeout(state->close_delay); | |
1374 | } | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | mp_change_pm(state, 3); | |
1379 | } | |
1380 | printk("close8 %d\n", __LINE__); | |
1381 | ||
1382 | state->info->flags &= ~UIF_NORMAL_ACTIVE; | |
1383 | wake_up_interruptible(&state->info->open_wait); | |
1384 | ||
1385 | done: | |
1386 | printk("close done\n"); | |
1387 | MP_STATE_UNLOCK(state); | |
1388 | module_put(THIS_MODULE); | |
1389 | } | |
1390 | ||
1391 | static void mp_wait_until_sent(struct tty_struct *tty, int timeout) | |
1392 | { | |
1393 | struct sb_uart_state *state = tty->driver_data; | |
1394 | struct sb_uart_port *port = state->port; | |
1395 | unsigned long char_time, expire; | |
1396 | ||
1397 | if (port->type == PORT_UNKNOWN || port->fifosize == 0) | |
1398 | return; | |
1399 | ||
1400 | char_time = (port->timeout - HZ/50) / port->fifosize; | |
1401 | char_time = char_time / 5; | |
1402 | if (char_time == 0) | |
1403 | char_time = 1; | |
1404 | if (timeout && timeout < char_time) | |
1405 | char_time = timeout; | |
1406 | ||
1407 | if (timeout == 0 || timeout > 2 * port->timeout) | |
1408 | timeout = 2 * port->timeout; | |
1409 | ||
1410 | expire = jiffies + timeout; | |
1411 | ||
1412 | while (!port->ops->tx_empty(port)) { | |
1413 | set_current_state(TASK_INTERRUPTIBLE); | |
1414 | schedule_timeout(char_time); | |
1415 | if (signal_pending(current)) | |
1416 | break; | |
1417 | if (time_after(jiffies, expire)) | |
1418 | break; | |
1419 | } | |
1420 | set_current_state(TASK_RUNNING); /* might not be needed */ | |
1421 | } | |
1422 | ||
1423 | static void mp_hangup(struct tty_struct *tty) | |
1424 | { | |
1425 | struct sb_uart_state *state = tty->driver_data; | |
1426 | ||
1427 | MP_STATE_LOCK(state); | |
1428 | if (state->info && state->info->flags & UIF_NORMAL_ACTIVE) { | |
1429 | mp_flush_buffer(tty); | |
1430 | mp_shutdown(state); | |
1431 | state->count = 0; | |
1432 | state->info->flags &= ~UIF_NORMAL_ACTIVE; | |
1433 | state->info->tty = NULL; | |
1434 | wake_up_interruptible(&state->info->open_wait); | |
1435 | wake_up_interruptible(&state->info->delta_msr_wait); | |
1436 | } | |
1437 | MP_STATE_UNLOCK(state); | |
1438 | } | |
1439 | ||
1440 | static void mp_update_termios(struct sb_uart_state *state) | |
1441 | { | |
1442 | struct tty_struct *tty = state->info->tty; | |
1443 | struct sb_uart_port *port = state->port; | |
1444 | ||
1445 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { | |
1446 | mp_change_speed(state, NULL); | |
1447 | ||
1448 | if (tty->termios.c_cflag & CBAUD) | |
1449 | uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS); | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state) | |
1454 | { | |
1455 | DECLARE_WAITQUEUE(wait, current); | |
1456 | struct sb_uart_info *info = state->info; | |
1457 | struct sb_uart_port *port = state->port; | |
1458 | unsigned int mctrl; | |
1459 | ||
1460 | info->blocked_open++; | |
1461 | state->count--; | |
1462 | ||
1463 | add_wait_queue(&info->open_wait, &wait); | |
1464 | while (1) { | |
1465 | set_current_state(TASK_INTERRUPTIBLE); | |
1466 | ||
1467 | if (tty_hung_up_p(filp) || info->tty == NULL) | |
1468 | break; | |
1469 | ||
1470 | if (!(info->flags & UIF_INITIALIZED)) | |
1471 | break; | |
1472 | ||
1473 | if ((filp->f_flags & O_NONBLOCK) || | |
1474 | (info->tty->termios.c_cflag & CLOCAL) || | |
1475 | (info->tty->flags & (1 << TTY_IO_ERROR))) { | |
1476 | break; | |
1477 | } | |
1478 | ||
1479 | if (info->tty->termios.c_cflag & CBAUD) | |
1480 | uart_set_mctrl(port, TIOCM_DTR); | |
1481 | ||
1482 | spin_lock_irq(&port->lock); | |
1483 | port->ops->enable_ms(port); | |
1484 | mctrl = port->ops->get_mctrl(port); | |
1485 | spin_unlock_irq(&port->lock); | |
1486 | if (mctrl & TIOCM_CAR) | |
1487 | break; | |
1488 | ||
1489 | MP_STATE_UNLOCK(state); | |
1490 | schedule(); | |
1491 | MP_STATE_LOCK(state); | |
1492 | ||
1493 | if (signal_pending(current)) | |
1494 | break; | |
1495 | } | |
1496 | set_current_state(TASK_RUNNING); | |
1497 | remove_wait_queue(&info->open_wait, &wait); | |
1498 | ||
1499 | state->count++; | |
1500 | info->blocked_open--; | |
1501 | ||
1502 | if (signal_pending(current)) | |
1503 | return -ERESTARTSYS; | |
1504 | ||
1505 | if (!info->tty || tty_hung_up_p(filp)) | |
1506 | return -EAGAIN; | |
1507 | ||
1508 | return 0; | |
1509 | } | |
1510 | ||
1511 | static struct sb_uart_state *uart_get(struct uart_driver *drv, int line) | |
1512 | { | |
1513 | struct sb_uart_state *state; | |
1514 | ||
1515 | MP_MUTEX_LOCK(mp_mutex); | |
1516 | state = drv->state + line; | |
1517 | if (mutex_lock_interruptible(&state->mutex)) { | |
1518 | state = ERR_PTR(-ERESTARTSYS); | |
1519 | goto out; | |
1520 | } | |
1521 | state->count++; | |
1522 | if (!state->port) { | |
1523 | state->count--; | |
1524 | MP_STATE_UNLOCK(state); | |
1525 | state = ERR_PTR(-ENXIO); | |
1526 | goto out; | |
1527 | } | |
1528 | ||
1529 | if (!state->info) { | |
1530 | state->info = kmalloc(sizeof(struct sb_uart_info), GFP_KERNEL); | |
1531 | if (state->info) { | |
1532 | memset(state->info, 0, sizeof(struct sb_uart_info)); | |
1533 | init_waitqueue_head(&state->info->open_wait); | |
1534 | init_waitqueue_head(&state->info->delta_msr_wait); | |
1535 | ||
1536 | state->port->info = state->info; | |
1537 | ||
1538 | tasklet_init(&state->info->tlet, mp_tasklet_action, | |
1539 | (unsigned long)state); | |
1540 | } else { | |
1541 | state->count--; | |
1542 | MP_STATE_UNLOCK(state); | |
1543 | state = ERR_PTR(-ENOMEM); | |
1544 | } | |
1545 | } | |
1546 | ||
1547 | out: | |
1548 | MP_MUTEX_UNLOCK(mp_mutex); | |
1549 | return state; | |
1550 | } | |
1551 | ||
1552 | static int mp_open(struct tty_struct *tty, struct file *filp) | |
1553 | { | |
1554 | struct uart_driver *drv = (struct uart_driver *)tty->driver->driver_state; | |
1555 | struct sb_uart_state *state; | |
1556 | int retval; | |
1557 | int line = tty->index; | |
1558 | struct mp_port *mtpt; | |
1559 | ||
1560 | retval = -ENODEV; | |
1561 | if (line >= tty->driver->num) | |
1562 | goto fail; | |
1563 | ||
1564 | state = uart_get(drv, line); | |
1565 | ||
68a81291 SR |
1566 | if (IS_ERR(state)) { |
1567 | retval = PTR_ERR(state); | |
1568 | goto fail; | |
1569 | } | |
1570 | ||
8441bf5e DC |
1571 | mtpt = (struct mp_port *)state->port; |
1572 | ||
68a81291 SR |
1573 | tty->driver_data = state; |
1574 | tty->low_latency = (state->port->flags & UPF_LOW_LATENCY) ? 1 : 0; | |
1575 | tty->alt_speed = 0; | |
1576 | state->info->tty = tty; | |
1577 | ||
1578 | if (tty_hung_up_p(filp)) { | |
1579 | retval = -EAGAIN; | |
1580 | state->count--; | |
1581 | MP_STATE_UNLOCK(state); | |
1582 | goto fail; | |
1583 | } | |
1584 | ||
1585 | if (state->count == 1) | |
1586 | mp_change_pm(state, 0); | |
1587 | ||
1588 | retval = mp_startup(state, 0); | |
1589 | ||
1590 | if (retval == 0) | |
1591 | retval = mp_block_til_ready(filp, state); | |
1592 | MP_STATE_UNLOCK(state); | |
1593 | ||
1594 | if (retval == 0 && !(state->info->flags & UIF_NORMAL_ACTIVE)) { | |
1595 | state->info->flags |= UIF_NORMAL_ACTIVE; | |
1596 | ||
1597 | mp_update_termios(state); | |
1598 | } | |
1599 | ||
1600 | uart_clear_mctrl(state->port, TIOCM_RTS); | |
1601 | try_module_get(THIS_MODULE); | |
1602 | fail: | |
1603 | return retval; | |
1604 | } | |
1605 | ||
1606 | ||
1607 | static const char *mp_type(struct sb_uart_port *port) | |
1608 | { | |
1609 | const char *str = NULL; | |
1610 | ||
1611 | if (port->ops->type) | |
1612 | str = port->ops->type(port); | |
1613 | ||
1614 | if (!str) | |
1615 | str = "unknown"; | |
1616 | ||
1617 | return str; | |
1618 | } | |
1619 | ||
1620 | static void mp_change_pm(struct sb_uart_state *state, int pm_state) | |
1621 | { | |
1622 | struct sb_uart_port *port = state->port; | |
1623 | if (port->ops->pm) | |
1624 | port->ops->pm(port, pm_state, state->pm_state); | |
1625 | state->pm_state = pm_state; | |
1626 | } | |
1627 | ||
1628 | static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port) | |
1629 | { | |
1630 | char address[64]; | |
1631 | ||
1632 | switch (port->iotype) { | |
1633 | case UPIO_PORT: | |
1634 | snprintf(address, sizeof(address),"I/O 0x%x", port->iobase); | |
1635 | break; | |
1636 | case UPIO_HUB6: | |
1637 | snprintf(address, sizeof(address),"I/O 0x%x offset 0x%x", port->iobase, port->hub6); | |
1638 | break; | |
1639 | case UPIO_MEM: | |
1640 | snprintf(address, sizeof(address),"MMIO 0x%lx", port->mapbase); | |
1641 | break; | |
1642 | default: | |
1643 | snprintf(address, sizeof(address),"*unknown*" ); | |
1644 | strlcpy(address, "*unknown*", sizeof(address)); | |
1645 | break; | |
1646 | } | |
1647 | ||
1648 | printk( "%s%d at %s (irq = %d) is a %s\n", | |
1649 | drv->dev_name, port->line, address, port->irq, mp_type(port)); | |
1650 | ||
1651 | } | |
1652 | ||
1653 | static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port) | |
1654 | { | |
1655 | unsigned int flags; | |
1656 | ||
1657 | ||
1658 | if (!port->iobase && !port->mapbase && !port->membase) | |
1659 | { | |
1660 | DPRINTK("%s error \n",__FUNCTION__); | |
1661 | return; | |
1662 | } | |
1663 | flags = UART_CONFIG_TYPE; | |
1664 | if (port->flags & UPF_AUTO_IRQ) | |
1665 | flags |= UART_CONFIG_IRQ; | |
1666 | if (port->flags & UPF_BOOT_AUTOCONF) { | |
1667 | port->type = PORT_UNKNOWN; | |
1668 | port->ops->config_port(port, flags); | |
1669 | } | |
1670 | ||
1671 | if (port->type != PORT_UNKNOWN) { | |
1672 | unsigned long flags; | |
1673 | ||
1674 | mp_report_port(drv, port); | |
1675 | ||
1676 | spin_lock_irqsave(&port->lock, flags); | |
1677 | port->ops->set_mctrl(port, 0); | |
1678 | spin_unlock_irqrestore(&port->lock, flags); | |
1679 | ||
1680 | mp_change_pm(state, 3); | |
1681 | } | |
1682 | } | |
1683 | ||
1684 | static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state) | |
1685 | { | |
1686 | struct sb_uart_port *port = state->port; | |
1687 | struct sb_uart_info *info = state->info; | |
1688 | ||
1689 | if (info && info->tty) | |
1690 | tty_hangup(info->tty); | |
1691 | ||
1692 | MP_STATE_LOCK(state); | |
1693 | ||
1694 | state->info = NULL; | |
1695 | ||
1696 | if (port->type != PORT_UNKNOWN) | |
1697 | port->ops->release_port(port); | |
1698 | ||
1699 | port->type = PORT_UNKNOWN; | |
1700 | ||
1701 | if (info) { | |
1702 | tasklet_kill(&info->tlet); | |
1703 | kfree(info); | |
1704 | } | |
1705 | ||
1706 | MP_STATE_UNLOCK(state); | |
1707 | } | |
1708 | static struct tty_operations mp_ops = { | |
1709 | .open = mp_open, | |
1710 | .close = mp_close, | |
1711 | .write = mp_write, | |
1712 | .put_char = mp_put_char, | |
1713 | .flush_chars = mp_put_chars, | |
1714 | .write_room = mp_write_room, | |
1715 | .chars_in_buffer= mp_chars_in_buffer, | |
1716 | .flush_buffer = mp_flush_buffer, | |
1717 | .ioctl = mp_ioctl, | |
1718 | .throttle = mp_throttle, | |
1719 | .unthrottle = mp_unthrottle, | |
1720 | .send_xchar = mp_send_xchar, | |
1721 | .set_termios = mp_set_termios, | |
1722 | .stop = mp_stop, | |
1723 | .start = mp_start, | |
1724 | .hangup = mp_hangup, | |
1725 | .break_ctl = mp_break_ctl, | |
1726 | .wait_until_sent= mp_wait_until_sent, | |
1727 | #ifdef CONFIG_PROC_FS | |
1728 | .proc_fops = NULL, | |
1729 | #endif | |
1730 | .tiocmget = mp_tiocmget, | |
1731 | .tiocmset = mp_tiocmset, | |
1732 | }; | |
1733 | ||
1734 | static int mp_register_driver(struct uart_driver *drv) | |
1735 | { | |
1736 | struct tty_driver *normal = NULL; | |
1737 | int i, retval; | |
1738 | ||
1739 | drv->state = kmalloc(sizeof(struct sb_uart_state) * drv->nr, GFP_KERNEL); | |
1740 | retval = -ENOMEM; | |
1741 | if (!drv->state) | |
1742 | { | |
1743 | printk("SB PCI Error: Kernel memory allocation error!\n"); | |
1744 | goto out; | |
1745 | } | |
1746 | memset(drv->state, 0, sizeof(struct sb_uart_state) * drv->nr); | |
1747 | ||
1748 | normal = alloc_tty_driver(drv->nr); | |
1749 | if (!normal) | |
1750 | { | |
1751 | printk("SB PCI Error: tty allocation error!\n"); | |
1752 | goto out; | |
1753 | } | |
1754 | ||
1755 | drv->tty_driver = normal; | |
1756 | ||
1757 | normal->owner = drv->owner; | |
1758 | normal->magic = TTY_DRIVER_MAGIC; | |
1759 | normal->driver_name = drv->driver_name; | |
1760 | normal->name = drv->dev_name; | |
1761 | normal->major = drv->major; | |
1762 | normal->minor_start = drv->minor; | |
1763 | ||
1764 | normal->num = MAX_MP_PORT ; | |
1765 | ||
1766 | normal->type = TTY_DRIVER_TYPE_SERIAL; | |
1767 | normal->subtype = SERIAL_TYPE_NORMAL; | |
1768 | normal->init_termios = tty_std_termios; | |
1769 | normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; | |
1770 | normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; | |
1771 | normal->driver_state = drv; | |
1772 | ||
1773 | tty_set_operations(normal, &mp_ops); | |
1774 | ||
1775 | for (i = 0; i < drv->nr; i++) { | |
1776 | struct sb_uart_state *state = drv->state + i; | |
1777 | ||
1778 | state->close_delay = 500; | |
1779 | state->closing_wait = 30000; | |
1780 | ||
1781 | mutex_init(&state->mutex); | |
1782 | } | |
1783 | ||
1784 | retval = tty_register_driver(normal); | |
1785 | out: | |
1786 | if (retval < 0) { | |
1787 | printk("Register tty driver Fail!\n"); | |
1788 | put_tty_driver(normal); | |
1789 | kfree(drv->state); | |
1790 | } | |
1791 | ||
1792 | return retval; | |
1793 | } | |
1794 | ||
1795 | void mp_unregister_driver(struct uart_driver *drv) | |
1796 | { | |
1797 | struct tty_driver *normal = NULL; | |
1798 | ||
1799 | normal = drv->tty_driver; | |
1800 | ||
1801 | if (!normal) | |
1802 | { | |
1803 | return; | |
1804 | } | |
1805 | ||
1806 | tty_unregister_driver(normal); | |
1807 | put_tty_driver(normal); | |
1808 | drv->tty_driver = NULL; | |
1809 | ||
1810 | ||
1811 | if (drv->state) | |
1812 | { | |
1813 | kfree(drv->state); | |
1814 | } | |
1815 | ||
1816 | } | |
1817 | ||
1818 | static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port) | |
1819 | { | |
1820 | struct sb_uart_state *state; | |
1821 | int ret = 0; | |
1822 | ||
1823 | ||
1824 | if (port->line >= drv->nr) | |
1825 | return -EINVAL; | |
1826 | ||
1827 | state = drv->state + port->line; | |
1828 | ||
1829 | MP_MUTEX_LOCK(mp_mutex); | |
1830 | if (state->port) { | |
1831 | ret = -EINVAL; | |
1832 | goto out; | |
1833 | } | |
1834 | ||
1835 | state->port = port; | |
1836 | ||
1837 | spin_lock_init(&port->lock); | |
1838 | port->cons = drv->cons; | |
1839 | port->info = state->info; | |
1840 | ||
1841 | mp_configure_port(drv, state, port); | |
1842 | ||
1843 | tty_register_device(drv->tty_driver, port->line, port->dev); | |
1844 | ||
1845 | out: | |
1846 | MP_MUTEX_UNLOCK(mp_mutex); | |
1847 | ||
1848 | ||
1849 | return ret; | |
1850 | } | |
1851 | ||
1852 | static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port) | |
1853 | { | |
1854 | struct sb_uart_state *state = drv->state + port->line; | |
1855 | ||
1856 | if (state->port != port) | |
1857 | printk(KERN_ALERT "Removing wrong port: %p != %p\n", | |
1858 | state->port, port); | |
1859 | ||
1860 | MP_MUTEX_LOCK(mp_mutex); | |
1861 | ||
1862 | tty_unregister_device(drv->tty_driver, port->line); | |
1863 | ||
1864 | mp_unconfigure_port(drv, state); | |
1865 | state->port = NULL; | |
1866 | MP_MUTEX_UNLOCK(mp_mutex); | |
1867 | ||
1868 | return 0; | |
1869 | } | |
1870 | ||
1871 | static void autoconfig(struct mp_port *mtpt, unsigned int probeflags) | |
1872 | { | |
1873 | unsigned char status1, scratch, scratch2, scratch3; | |
1874 | unsigned char save_lcr, save_mcr; | |
1875 | unsigned long flags; | |
1876 | ||
1877 | unsigned char u_type; | |
1878 | unsigned char b_ret = 0; | |
1879 | ||
1880 | if (!mtpt->port.iobase && !mtpt->port.mapbase && !mtpt->port.membase) | |
1881 | return; | |
1882 | ||
1883 | DEBUG_AUTOCONF("ttyMP%d: autoconf (0x%04x, 0x%p): ", | |
1884 | mtpt->port.line, mtpt->port.iobase, mtpt->port.membase); | |
1885 | ||
1886 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
1887 | ||
1888 | if (!(mtpt->port.flags & UPF_BUGGY_UART)) { | |
1889 | scratch = serial_inp(mtpt, UART_IER); | |
1890 | serial_outp(mtpt, UART_IER, 0); | |
1891 | #ifdef __i386__ | |
1892 | outb(0xff, 0x080); | |
1893 | #endif | |
1894 | scratch2 = serial_inp(mtpt, UART_IER) & 0x0f; | |
1895 | serial_outp(mtpt, UART_IER, 0x0F); | |
1896 | #ifdef __i386__ | |
1897 | outb(0, 0x080); | |
1898 | #endif | |
1899 | scratch3 = serial_inp(mtpt, UART_IER) & 0x0F; | |
1900 | serial_outp(mtpt, UART_IER, scratch); | |
1901 | if (scratch2 != 0 || scratch3 != 0x0F) { | |
1902 | DEBUG_AUTOCONF("IER test failed (%02x, %02x) ", | |
1903 | scratch2, scratch3); | |
1904 | goto out; | |
1905 | } | |
1906 | } | |
1907 | ||
1908 | save_mcr = serial_in(mtpt, UART_MCR); | |
1909 | save_lcr = serial_in(mtpt, UART_LCR); | |
1910 | ||
1911 | if (!(mtpt->port.flags & UPF_SKIP_TEST)) { | |
1912 | serial_outp(mtpt, UART_MCR, UART_MCR_LOOP | 0x0A); | |
1913 | status1 = serial_inp(mtpt, UART_MSR) & 0xF0; | |
1914 | serial_outp(mtpt, UART_MCR, save_mcr); | |
1915 | if (status1 != 0x90) { | |
1916 | DEBUG_AUTOCONF("LOOP test failed (%02x) ", | |
1917 | status1); | |
1918 | goto out; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | serial_outp(mtpt, UART_LCR, 0xBF); | |
1923 | serial_outp(mtpt, UART_EFR, 0); | |
1924 | serial_outp(mtpt, UART_LCR, 0); | |
1925 | ||
1926 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); | |
1927 | scratch = serial_in(mtpt, UART_IIR) >> 6; | |
1928 | ||
1929 | DEBUG_AUTOCONF("iir=%d ", scratch); | |
1930 | if(mtpt->device->nr_ports >= 8) | |
1931 | b_ret = read_option_register(mtpt,(MP_OPTR_DIR0 + ((mtpt->port.line)/8))); | |
1932 | else | |
1933 | b_ret = read_option_register(mtpt,MP_OPTR_DIR0); | |
1934 | u_type = (b_ret & 0xf0) >> 4; | |
1935 | if(mtpt->port.type == PORT_UNKNOWN ) | |
1936 | { | |
1937 | switch (u_type) | |
1938 | { | |
1939 | case DIR_UART_16C550: | |
1940 | mtpt->port.type = PORT_16C55X; | |
1941 | break; | |
1942 | case DIR_UART_16C1050: | |
1943 | mtpt->port.type = PORT_16C105X; | |
1944 | break; | |
1945 | case DIR_UART_16C1050A: | |
1946 | if (mtpt->port.line < 2) | |
1947 | { | |
1948 | mtpt->port.type = PORT_16C105XA; | |
1949 | } | |
1950 | else | |
1951 | { | |
1952 | if (mtpt->device->device_id & 0x50) | |
1953 | { | |
1954 | mtpt->port.type = PORT_16C55X; | |
1955 | } | |
1956 | else | |
1957 | { | |
1958 | mtpt->port.type = PORT_16C105X; | |
1959 | } | |
1960 | } | |
1961 | break; | |
1962 | default: | |
1963 | mtpt->port.type = PORT_UNKNOWN; | |
1964 | break; | |
1965 | } | |
1966 | } | |
1967 | ||
1968 | if(mtpt->port.type == PORT_UNKNOWN ) | |
1969 | { | |
1970 | printk("unknow2\n"); | |
1971 | switch (scratch) { | |
1972 | case 0: | |
1973 | case 1: | |
1974 | mtpt->port.type = PORT_UNKNOWN; | |
1975 | break; | |
1976 | case 2: | |
1977 | case 3: | |
1978 | mtpt->port.type = PORT_16C55X; | |
1979 | break; | |
1980 | } | |
1981 | } | |
1982 | ||
1983 | serial_outp(mtpt, UART_LCR, save_lcr); | |
1984 | ||
1985 | mtpt->port.fifosize = uart_config[mtpt->port.type].dfl_xmit_fifo_size; | |
1986 | mtpt->capabilities = uart_config[mtpt->port.type].flags; | |
1987 | ||
1988 | if (mtpt->port.type == PORT_UNKNOWN) | |
1989 | goto out; | |
1990 | serial_outp(mtpt, UART_MCR, save_mcr); | |
1991 | serial_outp(mtpt, UART_FCR, (UART_FCR_ENABLE_FIFO | | |
1992 | UART_FCR_CLEAR_RCVR | | |
1993 | UART_FCR_CLEAR_XMIT)); | |
1994 | serial_outp(mtpt, UART_FCR, 0); | |
1995 | (void)serial_in(mtpt, UART_RX); | |
1996 | serial_outp(mtpt, UART_IER, 0); | |
1997 | ||
1998 | out: | |
1999 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2000 | DEBUG_AUTOCONF("type=%s\n", uart_config[mtpt->port.type].name); | |
2001 | } | |
2002 | ||
2003 | static void autoconfig_irq(struct mp_port *mtpt) | |
2004 | { | |
2005 | unsigned char save_mcr, save_ier; | |
2006 | unsigned long irqs; | |
2007 | int irq; | |
2008 | ||
2009 | /* forget possible initially masked and pending IRQ */ | |
2010 | probe_irq_off(probe_irq_on()); | |
2011 | save_mcr = serial_inp(mtpt, UART_MCR); | |
2012 | save_ier = serial_inp(mtpt, UART_IER); | |
2013 | serial_outp(mtpt, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); | |
2014 | ||
2015 | irqs = probe_irq_on(); | |
2016 | serial_outp(mtpt, UART_MCR, 0); | |
2017 | serial_outp(mtpt, UART_MCR, | |
2018 | UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); | |
2019 | ||
2020 | serial_outp(mtpt, UART_IER, 0x0f); /* enable all intrs */ | |
2021 | (void)serial_inp(mtpt, UART_LSR); | |
2022 | (void)serial_inp(mtpt, UART_RX); | |
2023 | (void)serial_inp(mtpt, UART_IIR); | |
2024 | (void)serial_inp(mtpt, UART_MSR); | |
2025 | serial_outp(mtpt, UART_TX, 0xFF); | |
2026 | irq = probe_irq_off(irqs); | |
2027 | ||
2028 | serial_outp(mtpt, UART_MCR, save_mcr); | |
2029 | serial_outp(mtpt, UART_IER, save_ier); | |
2030 | ||
2031 | mtpt->port.irq = (irq > 0) ? irq : 0; | |
2032 | } | |
2033 | ||
2034 | static void multi_stop_tx(struct sb_uart_port *port) | |
2035 | { | |
2036 | struct mp_port *mtpt = (struct mp_port *)port; | |
2037 | ||
2038 | if (mtpt->ier & UART_IER_THRI) { | |
2039 | mtpt->ier &= ~UART_IER_THRI; | |
2040 | serial_out(mtpt, UART_IER, mtpt->ier); | |
2041 | } | |
2042 | ||
2043 | tasklet_schedule(&port->info->tlet); | |
2044 | } | |
2045 | ||
2046 | static void multi_start_tx(struct sb_uart_port *port) | |
2047 | { | |
2048 | struct mp_port *mtpt = (struct mp_port *)port; | |
2049 | ||
2050 | if (!(mtpt->ier & UART_IER_THRI)) { | |
2051 | mtpt->ier |= UART_IER_THRI; | |
2052 | serial_out(mtpt, UART_IER, mtpt->ier); | |
2053 | } | |
2054 | } | |
2055 | ||
2056 | static void multi_stop_rx(struct sb_uart_port *port) | |
2057 | { | |
2058 | struct mp_port *mtpt = (struct mp_port *)port; | |
2059 | ||
2060 | mtpt->ier &= ~UART_IER_RLSI; | |
2061 | mtpt->port.read_status_mask &= ~UART_LSR_DR; | |
2062 | serial_out(mtpt, UART_IER, mtpt->ier); | |
2063 | } | |
2064 | ||
2065 | static void multi_enable_ms(struct sb_uart_port *port) | |
2066 | { | |
2067 | struct mp_port *mtpt = (struct mp_port *)port; | |
2068 | ||
2069 | mtpt->ier |= UART_IER_MSI; | |
2070 | serial_out(mtpt, UART_IER, mtpt->ier); | |
2071 | } | |
2072 | ||
2073 | ||
2074 | static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status ) | |
2075 | { | |
2076 | struct tty_struct *tty = mtpt->port.info->tty; | |
2077 | unsigned char lsr = *status; | |
2078 | int max_count = 256; | |
2079 | unsigned char ch; | |
2080 | char flag; | |
2081 | ||
2082 | //lsr &= mtpt->port.read_status_mask; | |
2083 | ||
2084 | do { | |
2085 | if ((lsr & UART_LSR_PE) && (mtpt->port.mdmode & MDMODE_ENABLE)) | |
2086 | { | |
2087 | ch = serial_inp(mtpt, UART_RX); | |
2088 | } | |
2089 | else if (lsr & UART_LSR_SPECIAL) | |
2090 | { | |
2091 | flag = 0; | |
2092 | ch = serial_inp(mtpt, UART_RX); | |
2093 | ||
2094 | if (lsr & UART_LSR_BI) | |
2095 | { | |
2096 | ||
2097 | mtpt->port.icount.brk++; | |
2098 | flag = TTY_BREAK; | |
2099 | ||
2100 | if (sb_uart_handle_break(&mtpt->port)) | |
2101 | goto ignore_char; | |
2102 | } | |
2103 | if (lsr & UART_LSR_PE) | |
2104 | { | |
2105 | mtpt->port.icount.parity++; | |
2106 | flag = TTY_PARITY; | |
2107 | } | |
2108 | if (lsr & UART_LSR_FE) | |
2109 | { | |
2110 | mtpt->port.icount.frame++; | |
2111 | flag = TTY_FRAME; | |
2112 | } | |
2113 | if (lsr & UART_LSR_OE) | |
2114 | { | |
2115 | mtpt->port.icount.overrun++; | |
2116 | flag = TTY_OVERRUN; | |
2117 | } | |
2118 | tty_insert_flip_char(tty, ch, flag); | |
2119 | } | |
2120 | else | |
2121 | { | |
2122 | ch = serial_inp(mtpt, UART_RX); | |
2123 | tty_insert_flip_char(tty, ch, 0); | |
2124 | } | |
2125 | ignore_char: | |
2126 | lsr = serial_inp(mtpt, UART_LSR); | |
2127 | } while ((lsr & UART_LSR_DR) && (max_count-- > 0)); | |
2128 | ||
2129 | tty_flip_buffer_push(tty); | |
2130 | } | |
2131 | ||
2132 | ||
2133 | ||
2134 | ||
2135 | static _INLINE_ void transmit_chars(struct mp_port *mtpt) | |
2136 | { | |
2137 | struct circ_buf *xmit = &mtpt->port.info->xmit; | |
2138 | int count; | |
2139 | ||
2140 | if (mtpt->port.x_char) { | |
2141 | serial_outp(mtpt, UART_TX, mtpt->port.x_char); | |
2142 | mtpt->port.icount.tx++; | |
2143 | mtpt->port.x_char = 0; | |
2144 | return; | |
2145 | } | |
2146 | if (uart_circ_empty(xmit) || uart_tx_stopped(&mtpt->port)) { | |
2147 | multi_stop_tx(&mtpt->port); | |
2148 | return; | |
2149 | } | |
2150 | ||
2151 | count = uart_circ_chars_pending(xmit); | |
2152 | ||
2153 | if(count > mtpt->port.fifosize) | |
2154 | { | |
2155 | count = mtpt->port.fifosize; | |
2156 | } | |
2157 | ||
2158 | printk("[%d] mdmode: %x\n", mtpt->port.line, mtpt->port.mdmode); | |
2159 | do { | |
2160 | #if 0 | |
2161 | /* check multi-drop mode */ | |
2162 | if ((mtpt->port.mdmode & (MDMODE_ENABLE | MDMODE_ADDR)) == (MDMODE_ENABLE | MDMODE_ADDR)) | |
2163 | { | |
2164 | printk("send address\n"); | |
2165 | /* send multi-drop address */ | |
2166 | serial_out(mtpt, UART_SCR, xmit->buf[xmit->tail]); | |
2167 | } | |
2168 | else | |
2169 | #endif | |
2170 | { | |
2171 | serial_out(mtpt, UART_TX, xmit->buf[xmit->tail]); | |
2172 | } | |
2173 | xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); | |
2174 | mtpt->port.icount.tx++; | |
2175 | } while (--count > 0); | |
2176 | } | |
2177 | ||
2178 | ||
2179 | ||
2180 | static _INLINE_ void check_modem_status(struct mp_port *mtpt) | |
2181 | { | |
2182 | int status; | |
2183 | ||
2184 | status = serial_in(mtpt, UART_MSR); | |
2185 | ||
2186 | if ((status & UART_MSR_ANY_DELTA) == 0) | |
2187 | return; | |
2188 | ||
2189 | if (status & UART_MSR_TERI) | |
2190 | mtpt->port.icount.rng++; | |
2191 | if (status & UART_MSR_DDSR) | |
2192 | mtpt->port.icount.dsr++; | |
2193 | if (status & UART_MSR_DDCD) | |
2194 | sb_uart_handle_dcd_change(&mtpt->port, status & UART_MSR_DCD); | |
2195 | if (status & UART_MSR_DCTS) | |
2196 | sb_uart_handle_cts_change(&mtpt->port, status & UART_MSR_CTS); | |
2197 | ||
2198 | wake_up_interruptible(&mtpt->port.info->delta_msr_wait); | |
2199 | } | |
2200 | ||
2201 | static inline void multi_handle_port(struct mp_port *mtpt) | |
2202 | { | |
2203 | unsigned int status = serial_inp(mtpt, UART_LSR); | |
2204 | ||
2205 | //printk("lsr: %x\n", status); | |
2206 | ||
2207 | if ((status & UART_LSR_DR) || (status & UART_LSR_SPECIAL)) | |
2208 | receive_chars(mtpt, &status); | |
2209 | check_modem_status(mtpt); | |
2210 | if (status & UART_LSR_THRE) | |
2211 | { | |
2212 | if ((mtpt->port.type == PORT_16C105X) | |
2213 | || (mtpt->port.type == PORT_16C105XA)) | |
2214 | transmit_chars(mtpt); | |
2215 | else | |
2216 | { | |
2217 | if (mtpt->interface >= RS485NE) | |
2218 | uart_set_mctrl(&mtpt->port, TIOCM_RTS); | |
2219 | ||
2220 | transmit_chars(mtpt); | |
2221 | ||
2222 | ||
2223 | if (mtpt->interface >= RS485NE) | |
2224 | { | |
2225 | while((status=serial_in(mtpt,UART_LSR) &0x60)!=0x60); | |
2226 | uart_clear_mctrl(&mtpt->port, TIOCM_RTS); | |
2227 | } | |
2228 | } | |
2229 | } | |
2230 | } | |
2231 | ||
2232 | ||
2233 | ||
2234 | static irqreturn_t multi_interrupt(int irq, void *dev_id) | |
2235 | { | |
2236 | struct irq_info *iinfo = dev_id; | |
2237 | struct list_head *lhead, *end = NULL; | |
2238 | int pass_counter = 0; | |
2239 | ||
2240 | ||
2241 | spin_lock(&iinfo->lock); | |
2242 | ||
2243 | lhead = iinfo->head; | |
2244 | do { | |
2245 | struct mp_port *mtpt; | |
2246 | unsigned int iir; | |
2247 | ||
2248 | mtpt = list_entry(lhead, struct mp_port, list); | |
2249 | ||
2250 | iir = serial_in(mtpt, UART_IIR); | |
2251 | printk("intrrupt! port %d, iir 0x%x\n", mtpt->port.line, iir); //wlee | |
2252 | if (!(iir & UART_IIR_NO_INT)) | |
2253 | { | |
2254 | printk("interrupt handle\n"); | |
2255 | spin_lock(&mtpt->port.lock); | |
2256 | multi_handle_port(mtpt); | |
2257 | spin_unlock(&mtpt->port.lock); | |
2258 | ||
2259 | end = NULL; | |
2260 | } else if (end == NULL) | |
2261 | end = lhead; | |
2262 | ||
2263 | lhead = lhead->next; | |
2264 | if (lhead == iinfo->head && pass_counter++ > PASS_LIMIT) | |
2265 | { | |
2266 | printk(KERN_ERR "multi: too much work for " | |
2267 | "irq%d\n", irq); | |
2268 | printk( "multi: too much work for " | |
2269 | "irq%d\n", irq); | |
2270 | break; | |
2271 | } | |
2272 | } while (lhead != end); | |
2273 | ||
2274 | spin_unlock(&iinfo->lock); | |
2275 | ||
2276 | ||
2277 | return IRQ_HANDLED; | |
2278 | } | |
2279 | ||
2280 | static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt) | |
2281 | { | |
2282 | spin_lock_irq(&i->lock); | |
2283 | ||
2284 | if (!list_empty(i->head)) { | |
2285 | if (i->head == &mtpt->list) | |
2286 | i->head = i->head->next; | |
2287 | list_del(&mtpt->list); | |
2288 | } else { | |
2289 | i->head = NULL; | |
2290 | } | |
2291 | ||
2292 | spin_unlock_irq(&i->lock); | |
2293 | } | |
2294 | ||
2295 | static int serial_link_irq_chain(struct mp_port *mtpt) | |
2296 | { | |
2297 | struct irq_info *i = irq_lists + mtpt->port.irq; | |
2298 | int ret, irq_flags = mtpt->port.flags & UPF_SHARE_IRQ ? IRQF_SHARED : 0; | |
2299 | spin_lock_irq(&i->lock); | |
2300 | ||
2301 | if (i->head) { | |
2302 | list_add(&mtpt->list, i->head); | |
2303 | spin_unlock_irq(&i->lock); | |
2304 | ||
2305 | ret = 0; | |
2306 | } else { | |
2307 | INIT_LIST_HEAD(&mtpt->list); | |
2308 | i->head = &mtpt->list; | |
2309 | spin_unlock_irq(&i->lock); | |
2310 | ||
2311 | ret = request_irq(mtpt->port.irq, multi_interrupt, | |
2312 | irq_flags, "serial", i); | |
2313 | if (ret < 0) | |
2314 | serial_do_unlink(i, mtpt); | |
2315 | } | |
2316 | ||
2317 | return ret; | |
2318 | } | |
2319 | ||
2320 | ||
2321 | ||
2322 | ||
2323 | static void serial_unlink_irq_chain(struct mp_port *mtpt) | |
2324 | { | |
2325 | struct irq_info *i = irq_lists + mtpt->port.irq; | |
2326 | ||
2327 | if (list_empty(i->head)) | |
2328 | { | |
2329 | free_irq(mtpt->port.irq, i); | |
2330 | } | |
2331 | serial_do_unlink(i, mtpt); | |
2332 | } | |
2333 | ||
2334 | static void multi_timeout(unsigned long data) | |
2335 | { | |
2336 | struct mp_port *mtpt = (struct mp_port *)data; | |
2337 | ||
2338 | ||
2339 | spin_lock(&mtpt->port.lock); | |
2340 | multi_handle_port(mtpt); | |
2341 | spin_unlock(&mtpt->port.lock); | |
2342 | ||
2343 | mod_timer(&mtpt->timer, jiffies+1 ); | |
2344 | } | |
2345 | ||
2346 | static unsigned int multi_tx_empty(struct sb_uart_port *port) | |
2347 | { | |
2348 | struct mp_port *mtpt = (struct mp_port *)port; | |
2349 | unsigned long flags; | |
2350 | unsigned int ret; | |
2351 | ||
2352 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
2353 | ret = serial_in(mtpt, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0; | |
2354 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2355 | ||
2356 | return ret; | |
2357 | } | |
2358 | ||
2359 | ||
2360 | static unsigned int multi_get_mctrl(struct sb_uart_port *port) | |
2361 | { | |
2362 | struct mp_port *mtpt = (struct mp_port *)port; | |
2363 | unsigned char status; | |
2364 | unsigned int ret; | |
2365 | ||
2366 | status = serial_in(mtpt, UART_MSR); | |
2367 | ||
2368 | ret = 0; | |
2369 | if (status & UART_MSR_DCD) | |
2370 | ret |= TIOCM_CAR; | |
2371 | if (status & UART_MSR_RI) | |
2372 | ret |= TIOCM_RNG; | |
2373 | if (status & UART_MSR_DSR) | |
2374 | ret |= TIOCM_DSR; | |
2375 | if (status & UART_MSR_CTS) | |
2376 | ret |= TIOCM_CTS; | |
2377 | return ret; | |
2378 | } | |
2379 | ||
2380 | static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl) | |
2381 | { | |
2382 | struct mp_port *mtpt = (struct mp_port *)port; | |
2383 | unsigned char mcr = 0; | |
2384 | ||
2385 | mctrl &= 0xff; | |
2386 | ||
2387 | if (mctrl & TIOCM_RTS) | |
2388 | mcr |= UART_MCR_RTS; | |
2389 | if (mctrl & TIOCM_DTR) | |
2390 | mcr |= UART_MCR_DTR; | |
2391 | if (mctrl & TIOCM_OUT1) | |
2392 | mcr |= UART_MCR_OUT1; | |
2393 | if (mctrl & TIOCM_OUT2) | |
2394 | mcr |= UART_MCR_OUT2; | |
2395 | if (mctrl & TIOCM_LOOP) | |
2396 | mcr |= UART_MCR_LOOP; | |
2397 | ||
2398 | ||
2399 | serial_out(mtpt, UART_MCR, mcr); | |
2400 | } | |
2401 | ||
2402 | ||
2403 | static void multi_break_ctl(struct sb_uart_port *port, int break_state) | |
2404 | { | |
2405 | struct mp_port *mtpt = (struct mp_port *)port; | |
2406 | unsigned long flags; | |
2407 | ||
2408 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
2409 | if (break_state == -1) | |
2410 | mtpt->lcr |= UART_LCR_SBC; | |
2411 | else | |
2412 | mtpt->lcr &= ~UART_LCR_SBC; | |
2413 | serial_out(mtpt, UART_LCR, mtpt->lcr); | |
2414 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2415 | } | |
2416 | ||
2417 | ||
2418 | ||
2419 | static int multi_startup(struct sb_uart_port *port) | |
2420 | { | |
2421 | struct mp_port *mtpt = (struct mp_port *)port; | |
2422 | unsigned long flags; | |
2423 | int retval; | |
2424 | ||
2425 | mtpt->capabilities = uart_config[mtpt->port.type].flags; | |
2426 | mtpt->mcr = 0; | |
2427 | ||
2428 | if (mtpt->capabilities & UART_CLEAR_FIFO) { | |
2429 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); | |
2430 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO | | |
2431 | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); | |
2432 | serial_outp(mtpt, UART_FCR, 0); | |
2433 | } | |
2434 | ||
2435 | (void) serial_inp(mtpt, UART_LSR); | |
2436 | (void) serial_inp(mtpt, UART_RX); | |
2437 | (void) serial_inp(mtpt, UART_IIR); | |
2438 | (void) serial_inp(mtpt, UART_MSR); | |
2439 | //test-wlee 9-bit disable | |
2440 | serial_outp(mtpt, UART_MSR, 0); | |
2441 | ||
2442 | ||
2443 | if (!(mtpt->port.flags & UPF_BUGGY_UART) && | |
2444 | (serial_inp(mtpt, UART_LSR) == 0xff)) { | |
2445 | printk("ttyS%d: LSR safety check engaged!\n", mtpt->port.line); | |
2446 | //return -ENODEV; | |
2447 | } | |
2448 | ||
2449 | if ((!is_real_interrupt(mtpt->port.irq)) || (mtpt->poll_type==TYPE_POLL)) { | |
2450 | unsigned int timeout = mtpt->port.timeout; | |
2451 | ||
2452 | timeout = timeout > 6 ? (timeout / 2 - 2) : 1; | |
2453 | ||
2454 | mtpt->timer.data = (unsigned long)mtpt; | |
2455 | mod_timer(&mtpt->timer, jiffies + timeout); | |
2456 | } | |
2457 | else | |
2458 | { | |
2459 | retval = serial_link_irq_chain(mtpt); | |
2460 | if (retval) | |
2461 | return retval; | |
2462 | } | |
2463 | ||
2464 | serial_outp(mtpt, UART_LCR, UART_LCR_WLEN8); | |
2465 | ||
2466 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
2467 | if ((is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_INTERRUPT)) | |
2468 | mtpt->port.mctrl |= TIOCM_OUT2; | |
2469 | ||
2470 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); | |
2471 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2472 | ||
2473 | ||
2474 | mtpt->ier = UART_IER_RLSI | UART_IER_RDI; | |
2475 | serial_outp(mtpt, UART_IER, mtpt->ier); | |
2476 | ||
2477 | (void) serial_inp(mtpt, UART_LSR); | |
2478 | (void) serial_inp(mtpt, UART_RX); | |
2479 | (void) serial_inp(mtpt, UART_IIR); | |
2480 | (void) serial_inp(mtpt, UART_MSR); | |
2481 | ||
2482 | return 0; | |
2483 | } | |
2484 | ||
2485 | ||
2486 | ||
2487 | static void multi_shutdown(struct sb_uart_port *port) | |
2488 | { | |
2489 | struct mp_port *mtpt = (struct mp_port *)port; | |
2490 | unsigned long flags; | |
2491 | ||
2492 | ||
2493 | mtpt->ier = 0; | |
2494 | serial_outp(mtpt, UART_IER, 0); | |
2495 | ||
2496 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
2497 | mtpt->port.mctrl &= ~TIOCM_OUT2; | |
2498 | ||
2499 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); | |
2500 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2501 | ||
2502 | serial_out(mtpt, UART_LCR, serial_inp(mtpt, UART_LCR) & ~UART_LCR_SBC); | |
2503 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO | | |
2504 | UART_FCR_CLEAR_RCVR | | |
2505 | UART_FCR_CLEAR_XMIT); | |
2506 | serial_outp(mtpt, UART_FCR, 0); | |
2507 | ||
2508 | ||
2509 | (void) serial_in(mtpt, UART_RX); | |
2510 | ||
2511 | if ((!is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_POLL)) | |
2512 | { | |
2513 | del_timer_sync(&mtpt->timer); | |
2514 | } | |
2515 | else | |
2516 | { | |
2517 | serial_unlink_irq_chain(mtpt); | |
2518 | } | |
2519 | } | |
2520 | ||
2521 | ||
2522 | ||
2523 | static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud) | |
2524 | { | |
2525 | unsigned int quot; | |
2526 | ||
2527 | if ((port->flags & UPF_MAGIC_MULTIPLIER) && | |
2528 | baud == (port->uartclk/4)) | |
2529 | quot = 0x8001; | |
2530 | else if ((port->flags & UPF_MAGIC_MULTIPLIER) && | |
2531 | baud == (port->uartclk/8)) | |
2532 | quot = 0x8002; | |
2533 | else | |
2534 | quot = sb_uart_get_divisor(port, baud); | |
2535 | ||
2536 | return quot; | |
2537 | } | |
2538 | ||
2539 | ||
2540 | ||
2541 | ||
2542 | static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old) | |
2543 | { | |
2544 | struct mp_port *mtpt = (struct mp_port *)port; | |
2545 | unsigned char cval, fcr = 0; | |
2546 | unsigned long flags; | |
2547 | unsigned int baud, quot; | |
2548 | ||
2549 | switch (termios->c_cflag & CSIZE) { | |
2550 | case CS5: | |
2551 | cval = 0x00; | |
2552 | break; | |
2553 | case CS6: | |
2554 | cval = 0x01; | |
2555 | break; | |
2556 | case CS7: | |
2557 | cval = 0x02; | |
2558 | break; | |
2559 | default: | |
2560 | case CS8: | |
2561 | cval = 0x03; | |
2562 | break; | |
2563 | } | |
2564 | ||
2565 | if (termios->c_cflag & CSTOPB) | |
2566 | cval |= 0x04; | |
2567 | if (termios->c_cflag & PARENB) | |
2568 | cval |= UART_LCR_PARITY; | |
2569 | if (!(termios->c_cflag & PARODD)) | |
2570 | cval |= UART_LCR_EPAR; | |
2571 | ||
2572 | #ifdef CMSPAR | |
2573 | if (termios->c_cflag & CMSPAR) | |
2574 | cval |= UART_LCR_SPAR; | |
2575 | #endif | |
2576 | ||
2577 | baud = sb_uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); | |
2578 | quot = multi_get_divisor(port, baud); | |
2579 | ||
2580 | if (mtpt->capabilities & UART_USE_FIFO) { | |
2581 | //if (baud < 2400) | |
2582 | // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1; | |
2583 | //else | |
2584 | // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_8; | |
2585 | ||
2586 | // fcr = UART_FCR_ENABLE_FIFO | 0x90; | |
2587 | fcr = fcr_arr[mtpt->port.line]; | |
2588 | } | |
2589 | ||
2590 | spin_lock_irqsave(&mtpt->port.lock, flags); | |
2591 | ||
2592 | sb_uart_update_timeout(port, termios->c_cflag, baud); | |
2593 | ||
2594 | mtpt->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; | |
2595 | if (termios->c_iflag & INPCK) | |
2596 | mtpt->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; | |
2597 | if (termios->c_iflag & (BRKINT | PARMRK)) | |
2598 | mtpt->port.read_status_mask |= UART_LSR_BI; | |
2599 | ||
2600 | mtpt->port.ignore_status_mask = 0; | |
2601 | if (termios->c_iflag & IGNPAR) | |
2602 | mtpt->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE; | |
2603 | if (termios->c_iflag & IGNBRK) { | |
2604 | mtpt->port.ignore_status_mask |= UART_LSR_BI; | |
2605 | if (termios->c_iflag & IGNPAR) | |
2606 | mtpt->port.ignore_status_mask |= UART_LSR_OE; | |
2607 | } | |
2608 | ||
2609 | if ((termios->c_cflag & CREAD) == 0) | |
2610 | mtpt->port.ignore_status_mask |= UART_LSR_DR; | |
2611 | ||
2612 | mtpt->ier &= ~UART_IER_MSI; | |
2613 | if (UART_ENABLE_MS(&mtpt->port, termios->c_cflag)) | |
2614 | mtpt->ier |= UART_IER_MSI; | |
2615 | ||
2616 | serial_out(mtpt, UART_IER, mtpt->ier); | |
2617 | ||
2618 | if (mtpt->capabilities & UART_STARTECH) { | |
2619 | serial_outp(mtpt, UART_LCR, 0xBF); | |
2620 | serial_outp(mtpt, UART_EFR, | |
2621 | termios->c_cflag & CRTSCTS ? UART_EFR_CTS :0); | |
2622 | } | |
2623 | ||
2624 | serial_outp(mtpt, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */ | |
2625 | ||
2626 | serial_outp(mtpt, UART_DLL, quot & 0xff); /* LS of divisor */ | |
2627 | serial_outp(mtpt, UART_DLM, quot >> 8); /* MS of divisor */ | |
2628 | ||
2629 | serial_outp(mtpt, UART_LCR, cval); /* reset DLAB */ | |
2630 | mtpt->lcr = cval; /* Save LCR */ | |
2631 | ||
2632 | if (fcr & UART_FCR_ENABLE_FIFO) { | |
2633 | /* emulated UARTs (Lucent Venus 167x) need two steps */ | |
2634 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); | |
2635 | } | |
2636 | ||
2637 | serial_outp(mtpt, UART_FCR, fcr); /* set fcr */ | |
2638 | ||
2639 | ||
2640 | if ((mtpt->port.type == PORT_16C105X) | |
2641 | || (mtpt->port.type == PORT_16C105XA)) | |
2642 | { | |
2643 | if(deep[mtpt->port.line]!=0) | |
2644 | set_deep_fifo(port, ENABLE); | |
2645 | ||
2646 | if (mtpt->interface != RS232) | |
2647 | set_auto_rts(port,mtpt->interface); | |
2648 | ||
2649 | } | |
2650 | else | |
2651 | { | |
2652 | if (mtpt->interface >= RS485NE) | |
2653 | { | |
2654 | uart_clear_mctrl(&mtpt->port, TIOCM_RTS); | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | if(mtpt->device->device_id == PCI_DEVICE_ID_MP4M) | |
2659 | { | |
2660 | SendATCommand(mtpt); | |
2661 | printk("SendATCommand\n"); | |
2662 | } | |
2663 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); | |
2664 | spin_unlock_irqrestore(&mtpt->port.lock, flags); | |
2665 | } | |
2666 | ||
2667 | static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate) | |
2668 | { | |
2669 | struct mp_port *mtpt = (struct mp_port *)port; | |
2670 | if (state) { | |
2671 | if (mtpt->capabilities & UART_STARTECH) { | |
2672 | serial_outp(mtpt, UART_LCR, 0xBF); | |
2673 | serial_outp(mtpt, UART_EFR, UART_EFR_ECB); | |
2674 | serial_outp(mtpt, UART_LCR, 0); | |
2675 | serial_outp(mtpt, UART_IER, UART_IERX_SLEEP); | |
2676 | serial_outp(mtpt, UART_LCR, 0xBF); | |
2677 | serial_outp(mtpt, UART_EFR, 0); | |
2678 | serial_outp(mtpt, UART_LCR, 0); | |
2679 | } | |
2680 | ||
2681 | if (mtpt->pm) | |
2682 | mtpt->pm(port, state, oldstate); | |
2683 | } | |
2684 | else | |
2685 | { | |
2686 | if (mtpt->capabilities & UART_STARTECH) { | |
2687 | serial_outp(mtpt, UART_LCR, 0xBF); | |
2688 | serial_outp(mtpt, UART_EFR, UART_EFR_ECB); | |
2689 | serial_outp(mtpt, UART_LCR, 0); | |
2690 | serial_outp(mtpt, UART_IER, 0); | |
2691 | serial_outp(mtpt, UART_LCR, 0xBF); | |
2692 | serial_outp(mtpt, UART_EFR, 0); | |
2693 | serial_outp(mtpt, UART_LCR, 0); | |
2694 | } | |
2695 | ||
2696 | if (mtpt->pm) | |
2697 | mtpt->pm(port, state, oldstate); | |
2698 | } | |
2699 | } | |
2700 | ||
2701 | static void multi_release_std_resource(struct mp_port *mtpt) | |
2702 | { | |
2703 | unsigned int size = 8 << mtpt->port.regshift; | |
2704 | ||
2705 | switch (mtpt->port.iotype) { | |
2706 | case UPIO_MEM: | |
2707 | if (!mtpt->port.mapbase) | |
2708 | break; | |
2709 | ||
2710 | if (mtpt->port.flags & UPF_IOREMAP) { | |
2711 | iounmap(mtpt->port.membase); | |
2712 | mtpt->port.membase = NULL; | |
2713 | } | |
2714 | ||
2715 | release_mem_region(mtpt->port.mapbase, size); | |
2716 | break; | |
2717 | ||
2718 | case UPIO_HUB6: | |
2719 | case UPIO_PORT: | |
2720 | release_region(mtpt->port.iobase,size); | |
2721 | break; | |
2722 | } | |
2723 | } | |
2724 | ||
2725 | static void multi_release_port(struct sb_uart_port *port) | |
2726 | { | |
2727 | } | |
2728 | ||
2729 | static int multi_request_port(struct sb_uart_port *port) | |
2730 | { | |
2731 | return 0; | |
2732 | } | |
2733 | ||
2734 | static void multi_config_port(struct sb_uart_port *port, int flags) | |
2735 | { | |
2736 | struct mp_port *mtpt = (struct mp_port *)port; | |
2737 | int probeflags = PROBE_ANY; | |
2738 | ||
2739 | if (flags & UART_CONFIG_TYPE) | |
2740 | autoconfig(mtpt, probeflags); | |
2741 | if (mtpt->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ) | |
2742 | autoconfig_irq(mtpt); | |
2743 | ||
2744 | if (mtpt->port.type == PORT_UNKNOWN) | |
2745 | multi_release_std_resource(mtpt); | |
2746 | } | |
2747 | ||
2748 | static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser) | |
2749 | { | |
2750 | if (ser->irq >= NR_IRQS || ser->irq < 0 || | |
2751 | ser->baud_base < 9600 || ser->type < PORT_UNKNOWN || | |
2752 | ser->type == PORT_STARTECH) | |
2753 | return -EINVAL; | |
2754 | return 0; | |
2755 | } | |
2756 | ||
2757 | static const char * multi_type(struct sb_uart_port *port) | |
2758 | { | |
2759 | int type = port->type; | |
2760 | ||
2761 | if (type >= ARRAY_SIZE(uart_config)) | |
2762 | type = 0; | |
2763 | return uart_config[type].name; | |
2764 | } | |
2765 | ||
2766 | static struct sb_uart_ops multi_pops = { | |
2767 | .tx_empty = multi_tx_empty, | |
2768 | .set_mctrl = multi_set_mctrl, | |
2769 | .get_mctrl = multi_get_mctrl, | |
2770 | .stop_tx = multi_stop_tx, | |
2771 | .start_tx = multi_start_tx, | |
2772 | .stop_rx = multi_stop_rx, | |
2773 | .enable_ms = multi_enable_ms, | |
2774 | .break_ctl = multi_break_ctl, | |
2775 | .startup = multi_startup, | |
2776 | .shutdown = multi_shutdown, | |
2777 | .set_termios = multi_set_termios, | |
2778 | .pm = multi_pm, | |
2779 | .type = multi_type, | |
2780 | .release_port = multi_release_port, | |
2781 | .request_port = multi_request_port, | |
2782 | .config_port = multi_config_port, | |
2783 | .verify_port = multi_verify_port, | |
2784 | }; | |
2785 | ||
2786 | static struct uart_driver multi_reg = { | |
2787 | .owner = THIS_MODULE, | |
2788 | .driver_name = "goldel_tulip", | |
2789 | .dev_name = "ttyMP", | |
2790 | .major = SB_TTY_MP_MAJOR, | |
2791 | .minor = 0, | |
2792 | .nr = MAX_MP_PORT, | |
2793 | .cons = NULL, | |
2794 | }; | |
2795 | ||
2796 | static void __init multi_init_ports(void) | |
2797 | { | |
2798 | struct mp_port *mtpt; | |
2799 | static int first = 1; | |
2800 | int i,j,k; | |
2801 | unsigned char osc; | |
2802 | unsigned char b_ret = 0; | |
2803 | static struct mp_device_t * sbdev; | |
2804 | ||
2805 | if (!first) | |
2806 | return; | |
2807 | first = 0; | |
2808 | ||
2809 | mtpt = multi_ports; | |
2810 | ||
2811 | for (k=0;k<NR_BOARD;k++) | |
2812 | { | |
2813 | sbdev = &mp_devs[k]; | |
2814 | ||
2815 | for (i = 0; i < sbdev->nr_ports; i++, mtpt++) | |
2816 | { | |
2817 | mtpt->device = sbdev; | |
2818 | mtpt->port.iobase = sbdev->uart_access_addr + 8*i; | |
2819 | mtpt->port.irq = sbdev->irq; | |
2820 | if ( ((sbdev->device_id == PCI_DEVICE_ID_MP4)&&(sbdev->revision==0x91))) | |
2821 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i; | |
2822 | else if (sbdev->revision == 0xc0) | |
2823 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + (i & 0x1); | |
2824 | else | |
2825 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i/8; | |
2826 | ||
2827 | mtpt->option_base_addr = sbdev->option_reg_addr; | |
2828 | ||
2829 | mtpt->poll_type = sbdev->poll_type; | |
2830 | ||
2831 | mtpt->port.uartclk = BASE_BAUD * 16; | |
2832 | ||
2833 | /* get input clock infomation */ | |
2834 | osc = inb(sbdev->option_reg_addr + MP_OPTR_DIR0 + i/8) & 0x0F; | |
2835 | if (osc==0x0f) | |
2836 | osc = 0; | |
2837 | for(j=0;j<osc;j++) | |
2838 | mtpt->port.uartclk *= 2; | |
2839 | mtpt->port.flags |= STD_COM_FLAGS | UPF_SHARE_IRQ ; | |
2840 | mtpt->port.iotype = UPIO_PORT; | |
2841 | mtpt->port.ops = &multi_pops; | |
2842 | ||
2843 | if (sbdev->revision == 0xc0) | |
2844 | { | |
2845 | /* for SB16C1053APCI */ | |
2846 | b_ret = sb1053a_get_interface(mtpt, i); | |
2847 | } | |
2848 | else | |
2849 | { | |
2850 | b_ret = read_option_register(mtpt,(MP_OPTR_IIR0 + i/8)); | |
2851 | printk("IIR_RET = %x\n",b_ret); | |
2852 | } | |
2853 | ||
c803dd48 DC |
2854 | /* default to RS232 */ |
2855 | mtpt->interface = RS232; | |
2856 | if (IIR_RS422 == (b_ret & IIR_TYPE_MASK)) | |
68a81291 | 2857 | mtpt->interface = RS422PTP; |
c803dd48 | 2858 | if (IIR_RS485 == (b_ret & IIR_TYPE_MASK)) |
68a81291 | 2859 | mtpt->interface = RS485NE; |
68a81291 SR |
2860 | } |
2861 | } | |
2862 | } | |
2863 | ||
2864 | static void __init multi_register_ports(struct uart_driver *drv) | |
2865 | { | |
2866 | int i; | |
2867 | ||
2868 | multi_init_ports(); | |
2869 | ||
2870 | for (i = 0; i < NR_PORTS; i++) { | |
2871 | struct mp_port *mtpt = &multi_ports[i]; | |
2872 | ||
2873 | mtpt->port.line = i; | |
2874 | mtpt->port.ops = &multi_pops; | |
2875 | init_timer(&mtpt->timer); | |
2876 | mtpt->timer.function = multi_timeout; | |
2877 | mp_add_one_port(drv, &mtpt->port); | |
2878 | } | |
2879 | } | |
2880 | ||
2881 | /** | |
2882 | * pci_remap_base - remap BAR value of pci device | |
2883 | * | |
2884 | * PARAMETERS | |
2885 | * pcidev - pci_dev structure address | |
2886 | * offset - BAR offset PCI_BASE_ADDRESS_0 ~ PCI_BASE_ADDRESS_4 | |
2887 | * address - address to be changed BAR value | |
2888 | * size - size of address space | |
2889 | * | |
2890 | * RETURNS | |
2891 | * If this function performs successful, it returns 0. Otherwise, It returns -1. | |
2892 | */ | |
2893 | static int pci_remap_base(struct pci_dev *pcidev, unsigned int offset, | |
2894 | unsigned int address, unsigned int size) | |
2895 | { | |
2896 | #if 0 | |
2897 | struct resource *root; | |
2898 | unsigned index = (offset - 0x10) >> 2; | |
2899 | #endif | |
2900 | ||
2901 | pci_write_config_dword(pcidev, offset, address); | |
2902 | #if 0 | |
2903 | root = pcidev->resource[index].parent; | |
2904 | release_resource(&pcidev->resource[index]); | |
2905 | address &= ~0x1; | |
2906 | pcidev->resource[index].start = address; | |
2907 | pcidev->resource[index].end = address + size - 1; | |
2908 | ||
2909 | if (request_resource(root, &pcidev->resource[index]) != NULL) | |
2910 | { | |
2911 | printk(KERN_ERR "pci remap conflict!! 0x%x\n", address); | |
2912 | return (-1); | |
2913 | } | |
2914 | #endif | |
2915 | ||
2916 | return (0); | |
2917 | } | |
2918 | ||
2919 | static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd) | |
2920 | { | |
2921 | static struct mp_device_t * sbdev = mp_devs; | |
2922 | unsigned long addr = 0; | |
2923 | int j; | |
2924 | struct resource * ret = NULL; | |
2925 | ||
2926 | sbdev->device_id = brd.device_id; | |
2927 | pci_read_config_byte(pcidev, PCI_CLASS_REVISION, &(sbdev->revision)); | |
2928 | sbdev->name = brd.name; | |
2929 | sbdev->uart_access_addr = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK; | |
2930 | ||
2931 | /* check revision. The SB16C1053APCI's option i/o address is BAR4 */ | |
2932 | if (sbdev->revision == 0xc0) | |
2933 | { | |
2934 | /* SB16C1053APCI */ | |
2935 | sbdev->option_reg_addr = pcidev->resource[4].start & PCI_BASE_ADDRESS_IO_MASK; | |
2936 | } | |
2937 | else | |
2938 | { | |
2939 | sbdev->option_reg_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK; | |
2940 | } | |
2941 | #if 1 | |
2942 | if (sbdev->revision == 0xc0) | |
2943 | { | |
2944 | outb(0x00, sbdev->option_reg_addr + MP_OPTR_GPOCR); | |
2945 | inb(sbdev->option_reg_addr + MP_OPTR_GPOCR); | |
2946 | outb(0x83, sbdev->option_reg_addr + MP_OPTR_GPOCR); | |
2947 | } | |
2948 | #endif | |
2949 | ||
2950 | sbdev->irq = pcidev->irq; | |
2951 | ||
2952 | if ((brd.device_id & 0x0800) || !(brd.device_id &0xff00)) | |
2953 | { | |
2954 | sbdev->poll_type = TYPE_INTERRUPT; | |
2955 | } | |
2956 | else | |
2957 | { | |
2958 | sbdev->poll_type = TYPE_POLL; | |
2959 | } | |
2960 | ||
2961 | /* codes which is specific to each board*/ | |
2962 | switch(brd.device_id){ | |
2963 | case PCI_DEVICE_ID_MP1 : | |
2964 | case PCIE_DEVICE_ID_MP1 : | |
2965 | case PCIE_DEVICE_ID_MP1E : | |
2966 | case PCIE_DEVICE_ID_GT_MP1 : | |
2967 | sbdev->nr_ports = 1; | |
2968 | break; | |
2969 | case PCI_DEVICE_ID_MP2 : | |
2970 | case PCIE_DEVICE_ID_MP2 : | |
2971 | case PCIE_DEVICE_ID_GT_MP2 : | |
2972 | case PCIE_DEVICE_ID_MP2B : | |
2973 | case PCIE_DEVICE_ID_MP2E : | |
2974 | sbdev->nr_ports = 2; | |
2975 | ||
2976 | /* serial base address remap */ | |
2977 | if (sbdev->revision == 0xc0) | |
2978 | { | |
2979 | int prev_port_addr = 0; | |
2980 | ||
2981 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); | |
2982 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); | |
2983 | } | |
2984 | break; | |
2985 | case PCI_DEVICE_ID_MP4 : | |
2986 | case PCI_DEVICE_ID_MP4A : | |
2987 | case PCIE_DEVICE_ID_MP4 : | |
2988 | case PCI_DEVICE_ID_GT_MP4 : | |
2989 | case PCI_DEVICE_ID_GT_MP4A : | |
2990 | case PCIE_DEVICE_ID_GT_MP4 : | |
2991 | case PCI_DEVICE_ID_MP4M : | |
2992 | case PCIE_DEVICE_ID_MP4B : | |
2993 | sbdev->nr_ports = 4; | |
2994 | ||
2995 | if(sbdev->revision == 0x91){ | |
2996 | sbdev->reserved_addr[0] = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK; | |
2997 | outb(0x03 , sbdev->reserved_addr[0] + 0x01); | |
2998 | outb(0x03 , sbdev->reserved_addr[0] + 0x02); | |
2999 | outb(0x01 , sbdev->reserved_addr[0] + 0x20); | |
3000 | outb(0x00 , sbdev->reserved_addr[0] + 0x21); | |
3001 | request_region(sbdev->reserved_addr[0], 32, sbdev->name); | |
3002 | sbdev->uart_access_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK; | |
3003 | sbdev->option_reg_addr = pcidev->resource[2].start & PCI_BASE_ADDRESS_IO_MASK; | |
3004 | } | |
3005 | ||
3006 | /* SB16C1053APCI */ | |
3007 | if (sbdev->revision == 0xc0) | |
3008 | { | |
3009 | int prev_port_addr = 0; | |
3010 | ||
3011 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); | |
3012 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); | |
3013 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 8); | |
3014 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 24, 8); | |
3015 | } | |
3016 | break; | |
3017 | case PCI_DEVICE_ID_MP6 : | |
3018 | case PCI_DEVICE_ID_MP6A : | |
3019 | case PCI_DEVICE_ID_GT_MP6 : | |
3020 | case PCI_DEVICE_ID_GT_MP6A : | |
3021 | sbdev->nr_ports = 6; | |
3022 | ||
3023 | /* SB16C1053APCI */ | |
3024 | if (sbdev->revision == 0xc0) | |
3025 | { | |
3026 | int prev_port_addr = 0; | |
3027 | ||
3028 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); | |
3029 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); | |
3030 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 16); | |
3031 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 32, 16); | |
3032 | } | |
3033 | break; | |
3034 | case PCI_DEVICE_ID_MP8 : | |
3035 | case PCIE_DEVICE_ID_MP8 : | |
3036 | case PCI_DEVICE_ID_GT_MP8 : | |
3037 | case PCIE_DEVICE_ID_GT_MP8 : | |
3038 | case PCIE_DEVICE_ID_MP8B : | |
3039 | sbdev->nr_ports = 8; | |
3040 | break; | |
3041 | case PCI_DEVICE_ID_MP32 : | |
3042 | case PCIE_DEVICE_ID_MP32 : | |
3043 | case PCI_DEVICE_ID_GT_MP32 : | |
3044 | case PCIE_DEVICE_ID_GT_MP32 : | |
3045 | { | |
3046 | int portnum_hex=0; | |
3047 | portnum_hex = inb(sbdev->option_reg_addr); | |
3048 | sbdev->nr_ports = ((portnum_hex/16)*10) + (portnum_hex % 16); | |
3049 | } | |
3050 | break; | |
7dfc8331 | 3051 | #ifdef CONFIG_PARPORT_PC |
68a81291 SR |
3052 | case PCI_DEVICE_ID_MP2S1P : |
3053 | sbdev->nr_ports = 2; | |
3054 | ||
3055 | /* SB16C1053APCI */ | |
3056 | if (sbdev->revision == 0xc0) | |
3057 | { | |
3058 | int prev_port_addr = 0; | |
3059 | ||
3060 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); | |
3061 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); | |
3062 | } | |
3063 | ||
3064 | /* add PC compatible parallel port */ | |
3065 | parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0); | |
3066 | break; | |
3067 | case PCI_DEVICE_ID_MP1P : | |
3068 | /* add PC compatible parallel port */ | |
3069 | parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0); | |
3070 | break; | |
b1255fb9 | 3071 | #endif |
68a81291 SR |
3072 | } |
3073 | ||
3074 | ret = request_region(sbdev->uart_access_addr, (8*sbdev->nr_ports), sbdev->name); | |
3075 | ||
3076 | if (sbdev->revision == 0xc0) | |
3077 | { | |
3078 | ret = request_region(sbdev->option_reg_addr, 0x40, sbdev->name); | |
3079 | } | |
3080 | else | |
3081 | { | |
3082 | ret = request_region(sbdev->option_reg_addr, 0x20, sbdev->name); | |
3083 | } | |
3084 | ||
3085 | ||
3086 | NR_BOARD++; | |
3087 | NR_PORTS += sbdev->nr_ports; | |
3088 | ||
3089 | /* Enable PCI interrupt */ | |
3090 | addr = sbdev->option_reg_addr + MP_OPTR_IMR0; | |
3091 | for(j=0; j < (sbdev->nr_ports/8)+1; j++) | |
3092 | { | |
3093 | if (sbdev->poll_type == TYPE_INTERRUPT) | |
3094 | { | |
3095 | outb(0xff,addr +j); | |
3096 | } | |
3097 | } | |
3098 | sbdev++; | |
3099 | ||
3100 | return 0; | |
3101 | } | |
3102 | ||
3103 | static int __init multi_init(void) | |
3104 | { | |
3105 | int ret, i; | |
3106 | struct pci_dev *dev = NULL; | |
3107 | ||
3108 | if(fcr_count==0) | |
3109 | { | |
3110 | for(i=0;i<256;i++) | |
3111 | { | |
3112 | fcr_arr[i] = 0x01; | |
3113 | ||
3114 | } | |
3115 | } | |
3116 | if(deep_count==0) | |
3117 | { | |
3118 | for(i=0;i<256;i++) | |
3119 | { | |
3120 | deep[i] = 1; | |
3121 | ||
3122 | } | |
3123 | } | |
3124 | if(rtr_count==0) | |
3125 | { | |
3126 | for(i=0;i<256;i++) | |
3127 | { | |
3128 | rtr[i] = 0x10; | |
3129 | } | |
3130 | } | |
3131 | if(ttr_count==0) | |
3132 | { | |
3133 | for(i=0;i<256;i++) | |
3134 | { | |
3135 | ttr[i] = 0x38; | |
3136 | } | |
3137 | } | |
3138 | ||
3139 | ||
3140 | printk("MULTI INIT\n"); | |
3141 | for( i=0; i< mp_nrpcibrds; i++) | |
3142 | { | |
3143 | ||
3144 | while( (dev = pci_get_device(mp_pciboards[i].vendor_id, mp_pciboards[i].device_id, dev) ) ) | |
3145 | ||
3146 | { | |
3147 | printk("FOUND~~~\n"); | |
3148 | // Cent OS bug fix | |
3149 | // if (mp_pciboards[i].device_id & 0x0800) | |
3150 | { | |
3151 | int status; | |
3152 | pci_disable_device(dev); | |
3153 | status = pci_enable_device(dev); | |
3154 | ||
3155 | if (status != 0) | |
3156 | { | |
3157 | printk("Multiport Board Enable Fail !\n\n"); | |
3158 | status = -ENXIO; | |
3159 | return status; | |
3160 | } | |
3161 | } | |
3162 | ||
3163 | init_mp_dev(dev, mp_pciboards[i]); | |
3164 | } | |
3165 | } | |
3166 | ||
3167 | for (i = 0; i < NR_IRQS; i++) | |
3168 | spin_lock_init(&irq_lists[i].lock); | |
3169 | ||
3170 | ret = mp_register_driver(&multi_reg); | |
3171 | ||
3172 | if (ret >= 0) | |
3173 | multi_register_ports(&multi_reg); | |
3174 | ||
3175 | return ret; | |
3176 | } | |
3177 | ||
3178 | static void __exit multi_exit(void) | |
3179 | { | |
3180 | int i; | |
3181 | ||
3182 | for (i = 0; i < NR_PORTS; i++) | |
3183 | mp_remove_one_port(&multi_reg, &multi_ports[i].port); | |
3184 | ||
3185 | mp_unregister_driver(&multi_reg); | |
3186 | } | |
3187 | ||
3188 | module_init(multi_init); | |
3189 | module_exit(multi_exit); | |
3190 | ||
3191 | MODULE_DESCRIPTION("SystemBase Multiport PCI/PCIe CORE"); | |
3192 | MODULE_LICENSE("GPL"); |