Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Driver for the Cirrus PD6729 PCI-PCMCIA bridge. | |
3 | * | |
4 | * Based on the i82092.c driver. | |
5 | * | |
6 | * This software may be used and distributed according to the terms of | |
7 | * the GNU General Public License, incorporated herein by reference. | |
8 | */ | |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/config.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/workqueue.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/device.h> | |
18 | ||
19 | #include <pcmcia/cs_types.h> | |
20 | #include <pcmcia/ss.h> | |
21 | #include <pcmcia/cs.h> | |
22 | ||
23 | #include <asm/system.h> | |
24 | #include <asm/io.h> | |
25 | ||
26 | #include "pd6729.h" | |
27 | #include "i82365.h" | |
28 | #include "cirrus.h" | |
29 | ||
30 | MODULE_LICENSE("GPL"); | |
31 | MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge"); | |
32 | MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>"); | |
33 | ||
34 | #define MAX_SOCKETS 2 | |
35 | ||
36 | /* | |
37 | * simple helper functions | |
38 | * External clock time, in nanoseconds. 120 ns = 8.33 MHz | |
39 | */ | |
40 | #define to_cycles(ns) ((ns)/120) | |
41 | ||
42 | #ifndef NO_IRQ | |
43 | #define NO_IRQ ((unsigned int)(0)) | |
44 | #endif | |
45 | ||
46 | /* | |
47 | * PARAMETERS | |
48 | * irq_mode=n | |
49 | * Specifies the interrupt delivery mode. The default (1) is to use PCI | |
50 | * interrupts; a value of 0 selects ISA interrupts. This must be set for | |
51 | * correct operation of PCI card readers. | |
52 | * | |
53 | * irq_list=i,j,... | |
54 | * This list limits the set of interrupts that can be used by PCMCIA | |
55 | * cards. | |
56 | * The default list is 3,4,5,7,9,10,11. | |
57 | * (irq_list parameter is not used, if irq_mode = 1) | |
58 | */ | |
59 | ||
60 | static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */ | |
61 | static int irq_list[16]; | |
62 | static int irq_list_count = 0; | |
63 | ||
64 | module_param(irq_mode, int, 0444); | |
65 | module_param_array(irq_list, int, &irq_list_count, 0444); | |
66 | MODULE_PARM_DESC(irq_mode, | |
67 | "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1"); | |
68 | MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards"); | |
69 | ||
70 | static DEFINE_SPINLOCK(port_lock); | |
71 | ||
72 | /* basic value read/write functions */ | |
73 | ||
74 | static unsigned char indirect_read(struct pd6729_socket *socket, | |
75 | unsigned short reg) | |
76 | { | |
77 | unsigned long port; | |
78 | unsigned char val; | |
79 | unsigned long flags; | |
80 | ||
81 | spin_lock_irqsave(&port_lock, flags); | |
82 | reg += socket->number * 0x40; | |
83 | port = socket->io_base; | |
84 | outb(reg, port); | |
85 | val = inb(port + 1); | |
86 | spin_unlock_irqrestore(&port_lock, flags); | |
87 | ||
88 | return val; | |
89 | } | |
90 | ||
91 | static unsigned short indirect_read16(struct pd6729_socket *socket, | |
92 | unsigned short reg) | |
93 | { | |
94 | unsigned long port; | |
95 | unsigned short tmp; | |
96 | unsigned long flags; | |
97 | ||
98 | spin_lock_irqsave(&port_lock, flags); | |
99 | reg = reg + socket->number * 0x40; | |
100 | port = socket->io_base; | |
101 | outb(reg, port); | |
102 | tmp = inb(port + 1); | |
103 | reg++; | |
104 | outb(reg, port); | |
105 | tmp = tmp | (inb(port + 1) << 8); | |
106 | spin_unlock_irqrestore(&port_lock, flags); | |
107 | ||
108 | return tmp; | |
109 | } | |
110 | ||
111 | static void indirect_write(struct pd6729_socket *socket, unsigned short reg, | |
112 | unsigned char value) | |
113 | { | |
114 | unsigned long port; | |
115 | unsigned long flags; | |
116 | ||
117 | spin_lock_irqsave(&port_lock, flags); | |
118 | reg = reg + socket->number * 0x40; | |
119 | port = socket->io_base; | |
120 | outb(reg, port); | |
121 | outb(value, port + 1); | |
122 | spin_unlock_irqrestore(&port_lock, flags); | |
123 | } | |
124 | ||
125 | static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg, | |
126 | unsigned char mask) | |
127 | { | |
128 | unsigned long port; | |
129 | unsigned char val; | |
130 | unsigned long flags; | |
131 | ||
132 | spin_lock_irqsave(&port_lock, flags); | |
133 | reg = reg + socket->number * 0x40; | |
134 | port = socket->io_base; | |
135 | outb(reg, port); | |
136 | val = inb(port + 1); | |
137 | val |= mask; | |
138 | outb(reg, port); | |
139 | outb(val, port + 1); | |
140 | spin_unlock_irqrestore(&port_lock, flags); | |
141 | } | |
142 | ||
143 | static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg, | |
144 | unsigned char mask) | |
145 | { | |
146 | unsigned long port; | |
147 | unsigned char val; | |
148 | unsigned long flags; | |
149 | ||
150 | spin_lock_irqsave(&port_lock, flags); | |
151 | reg = reg + socket->number * 0x40; | |
152 | port = socket->io_base; | |
153 | outb(reg, port); | |
154 | val = inb(port + 1); | |
155 | val &= ~mask; | |
156 | outb(reg, port); | |
157 | outb(val, port + 1); | |
158 | spin_unlock_irqrestore(&port_lock, flags); | |
159 | } | |
160 | ||
161 | static void indirect_write16(struct pd6729_socket *socket, unsigned short reg, | |
162 | unsigned short value) | |
163 | { | |
164 | unsigned long port; | |
165 | unsigned char val; | |
166 | unsigned long flags; | |
167 | ||
168 | spin_lock_irqsave(&port_lock, flags); | |
169 | reg = reg + socket->number * 0x40; | |
170 | port = socket->io_base; | |
171 | ||
172 | outb(reg, port); | |
173 | val = value & 255; | |
174 | outb(val, port + 1); | |
175 | ||
176 | reg++; | |
177 | ||
178 | outb(reg, port); | |
179 | val = value >> 8; | |
180 | outb(val, port + 1); | |
181 | spin_unlock_irqrestore(&port_lock, flags); | |
182 | } | |
183 | ||
184 | /* Interrupt handler functionality */ | |
185 | ||
186 | static irqreturn_t pd6729_interrupt(int irq, void *dev, struct pt_regs *regs) | |
187 | { | |
188 | struct pd6729_socket *socket = (struct pd6729_socket *)dev; | |
189 | int i; | |
190 | int loopcount = 0; | |
191 | int handled = 0; | |
192 | unsigned int events, active = 0; | |
193 | ||
194 | while (1) { | |
195 | loopcount++; | |
196 | if (loopcount > 20) { | |
197 | printk(KERN_ERR "pd6729: infinite eventloop " | |
198 | "in interrupt\n"); | |
199 | break; | |
200 | } | |
201 | ||
202 | active = 0; | |
203 | ||
204 | for (i = 0; i < MAX_SOCKETS; i++) { | |
205 | unsigned int csc; | |
206 | ||
207 | /* card status change register */ | |
208 | csc = indirect_read(&socket[i], I365_CSC); | |
209 | if (csc == 0) /* no events on this socket */ | |
210 | continue; | |
211 | ||
212 | handled = 1; | |
213 | events = 0; | |
214 | ||
215 | if (csc & I365_CSC_DETECT) { | |
216 | events |= SS_DETECT; | |
217 | dprintk("Card detected in socket %i!\n", i); | |
218 | } | |
219 | ||
220 | if (indirect_read(&socket[i], I365_INTCTL) | |
221 | & I365_PC_IOCARD) { | |
222 | /* For IO/CARDS, bit 0 means "read the card" */ | |
223 | events |= (csc & I365_CSC_STSCHG) | |
224 | ? SS_STSCHG : 0; | |
225 | } else { | |
226 | /* Check for battery/ready events */ | |
227 | events |= (csc & I365_CSC_BVD1) | |
228 | ? SS_BATDEAD : 0; | |
229 | events |= (csc & I365_CSC_BVD2) | |
230 | ? SS_BATWARN : 0; | |
231 | events |= (csc & I365_CSC_READY) | |
232 | ? SS_READY : 0; | |
233 | } | |
234 | ||
235 | if (events) { | |
236 | pcmcia_parse_events(&socket[i].socket, events); | |
237 | } | |
238 | active |= events; | |
239 | } | |
240 | ||
241 | if (active == 0) /* no more events to handle */ | |
242 | break; | |
243 | } | |
244 | return IRQ_RETVAL(handled); | |
245 | } | |
246 | ||
247 | /* socket functions */ | |
248 | ||
249 | static void pd6729_interrupt_wrapper(unsigned long data) | |
250 | { | |
251 | struct pd6729_socket *socket = (struct pd6729_socket *) data; | |
252 | ||
253 | pd6729_interrupt(0, (void *)socket, NULL); | |
254 | mod_timer(&socket->poll_timer, jiffies + HZ); | |
255 | } | |
256 | ||
257 | static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value) | |
258 | { | |
259 | struct pd6729_socket *socket | |
260 | = container_of(sock, struct pd6729_socket, socket); | |
261 | unsigned int status; | |
262 | unsigned int data; | |
263 | struct pd6729_socket *t; | |
264 | ||
265 | /* Interface Status Register */ | |
266 | status = indirect_read(socket, I365_STATUS); | |
267 | *value = 0; | |
268 | ||
269 | if ((status & I365_CS_DETECT) == I365_CS_DETECT) { | |
270 | *value |= SS_DETECT; | |
271 | } | |
272 | ||
273 | /* | |
274 | * IO cards have a different meaning of bits 0,1 | |
275 | * Also notice the inverse-logic on the bits | |
276 | */ | |
277 | if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) { | |
278 | /* IO card */ | |
279 | if (!(status & I365_CS_STSCHG)) | |
280 | *value |= SS_STSCHG; | |
281 | } else { | |
282 | /* non I/O card */ | |
283 | if (!(status & I365_CS_BVD1)) | |
284 | *value |= SS_BATDEAD; | |
285 | if (!(status & I365_CS_BVD2)) | |
286 | *value |= SS_BATWARN; | |
287 | } | |
288 | ||
289 | if (status & I365_CS_WRPROT) | |
290 | *value |= SS_WRPROT; /* card is write protected */ | |
291 | ||
292 | if (status & I365_CS_READY) | |
293 | *value |= SS_READY; /* card is not busy */ | |
294 | ||
295 | if (status & I365_CS_POWERON) | |
296 | *value |= SS_POWERON; /* power is applied to the card */ | |
297 | ||
298 | t = (socket->number) ? socket : socket + 1; | |
299 | indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA); | |
300 | data = indirect_read16(t, PD67_EXT_DATA); | |
301 | *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | ||
307 | static int pd6729_get_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
308 | { | |
309 | struct pd6729_socket *socket | |
310 | = container_of(sock, struct pd6729_socket, socket); | |
311 | unsigned char reg, vcc, vpp; | |
312 | ||
313 | state->flags = 0; | |
314 | state->Vcc = 0; | |
315 | state->Vpp = 0; | |
316 | state->io_irq = 0; | |
317 | state->csc_mask = 0; | |
318 | ||
319 | /* First the power status of the socket */ | |
320 | reg = indirect_read(socket, I365_POWER); | |
321 | ||
322 | if (reg & I365_PWR_AUTO) | |
323 | state->flags |= SS_PWR_AUTO; /* Automatic Power Switch */ | |
324 | ||
325 | if (reg & I365_PWR_OUT) | |
326 | state->flags |= SS_OUTPUT_ENA; /* Output signals are enabled */ | |
327 | ||
328 | vcc = reg & I365_VCC_MASK; vpp = reg & I365_VPP1_MASK; | |
329 | ||
330 | if (reg & I365_VCC_5V) { | |
331 | state->Vcc = (indirect_read(socket, PD67_MISC_CTL_1) & | |
332 | PD67_MC1_VCC_3V) ? 33 : 50; | |
333 | ||
334 | if (vpp == I365_VPP1_5V) { | |
335 | if (state->Vcc == 50) | |
336 | state->Vpp = 50; | |
337 | else | |
338 | state->Vpp = 33; | |
339 | } | |
340 | if (vpp == I365_VPP1_12V) | |
341 | state->Vpp = 120; | |
342 | } | |
343 | ||
344 | /* Now the IO card, RESET flags and IO interrupt */ | |
345 | reg = indirect_read(socket, I365_INTCTL); | |
346 | ||
347 | if ((reg & I365_PC_RESET) == 0) | |
348 | state->flags |= SS_RESET; | |
349 | if (reg & I365_PC_IOCARD) | |
350 | state->flags |= SS_IOCARD; /* This is an IO card */ | |
351 | ||
352 | /* Set the IRQ number */ | |
353 | state->io_irq = socket->card_irq; | |
354 | ||
355 | /* Card status change */ | |
356 | reg = indirect_read(socket, I365_CSCINT); | |
357 | ||
358 | if (reg & I365_CSC_DETECT) | |
359 | state->csc_mask |= SS_DETECT; /* Card detect is enabled */ | |
360 | ||
361 | if (state->flags & SS_IOCARD) {/* IO Cards behave different */ | |
362 | if (reg & I365_CSC_STSCHG) | |
363 | state->csc_mask |= SS_STSCHG; | |
364 | } else { | |
365 | if (reg & I365_CSC_BVD1) | |
366 | state->csc_mask |= SS_BATDEAD; | |
367 | if (reg & I365_CSC_BVD2) | |
368 | state->csc_mask |= SS_BATWARN; | |
369 | if (reg & I365_CSC_READY) | |
370 | state->csc_mask |= SS_READY; | |
371 | } | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
377 | { | |
378 | struct pd6729_socket *socket | |
379 | = container_of(sock, struct pd6729_socket, socket); | |
380 | unsigned char reg, data; | |
381 | ||
382 | /* First, set the global controller options */ | |
383 | indirect_write(socket, I365_GBLCTL, 0x00); | |
384 | indirect_write(socket, I365_GENCTL, 0x00); | |
385 | ||
386 | /* Values for the IGENC register */ | |
387 | socket->card_irq = state->io_irq; | |
388 | ||
389 | reg = 0; | |
390 | /* The reset bit has "inverse" logic */ | |
391 | if (!(state->flags & SS_RESET)) | |
392 | reg |= I365_PC_RESET; | |
393 | if (state->flags & SS_IOCARD) | |
394 | reg |= I365_PC_IOCARD; | |
395 | ||
396 | /* IGENC, Interrupt and General Control Register */ | |
397 | indirect_write(socket, I365_INTCTL, reg); | |
398 | ||
399 | /* Power registers */ | |
400 | ||
401 | reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */ | |
402 | ||
403 | if (state->flags & SS_PWR_AUTO) { | |
404 | dprintk("Auto power\n"); | |
405 | reg |= I365_PWR_AUTO; /* automatic power mngmnt */ | |
406 | } | |
407 | if (state->flags & SS_OUTPUT_ENA) { | |
408 | dprintk("Power Enabled\n"); | |
409 | reg |= I365_PWR_OUT; /* enable power */ | |
410 | } | |
411 | ||
412 | switch (state->Vcc) { | |
413 | case 0: | |
414 | break; | |
415 | case 33: | |
416 | dprintk("setting voltage to Vcc to 3.3V on socket %i\n", | |
417 | socket->number); | |
418 | reg |= I365_VCC_5V; | |
419 | indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); | |
420 | break; | |
421 | case 50: | |
422 | dprintk("setting voltage to Vcc to 5V on socket %i\n", | |
423 | socket->number); | |
424 | reg |= I365_VCC_5V; | |
425 | indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); | |
426 | break; | |
427 | default: | |
428 | dprintk("pd6729: pd6729_set_socket called with " | |
429 | "invalid VCC power value: %i\n", | |
430 | state->Vcc); | |
431 | return -EINVAL; | |
432 | } | |
433 | ||
434 | switch (state->Vpp) { | |
435 | case 0: | |
436 | dprintk("not setting Vpp on socket %i\n", socket->number); | |
437 | break; | |
438 | case 33: | |
439 | case 50: | |
440 | dprintk("setting Vpp to Vcc for socket %i\n", socket->number); | |
441 | reg |= I365_VPP1_5V; | |
442 | break; | |
443 | case 120: | |
444 | dprintk("setting Vpp to 12.0\n"); | |
445 | reg |= I365_VPP1_12V; | |
446 | break; | |
447 | default: | |
448 | dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n", | |
449 | state->Vpp); | |
450 | return -EINVAL; | |
451 | } | |
452 | ||
453 | /* only write if changed */ | |
454 | if (reg != indirect_read(socket, I365_POWER)) | |
455 | indirect_write(socket, I365_POWER, reg); | |
456 | ||
457 | if (irq_mode == 1) { | |
458 | /* all interrupts are to be done as PCI interrupts */ | |
459 | data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ; | |
460 | } else | |
461 | data = 0; | |
462 | ||
463 | indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1); | |
464 | indirect_write(socket, PD67_EXT_DATA, data); | |
465 | ||
466 | /* Enable specific interrupt events */ | |
467 | ||
468 | reg = 0x00; | |
469 | if (state->csc_mask & SS_DETECT) { | |
470 | reg |= I365_CSC_DETECT; | |
471 | } | |
472 | if (state->flags & SS_IOCARD) { | |
473 | if (state->csc_mask & SS_STSCHG) | |
474 | reg |= I365_CSC_STSCHG; | |
475 | } else { | |
476 | if (state->csc_mask & SS_BATDEAD) | |
477 | reg |= I365_CSC_BVD1; | |
478 | if (state->csc_mask & SS_BATWARN) | |
479 | reg |= I365_CSC_BVD2; | |
480 | if (state->csc_mask & SS_READY) | |
481 | reg |= I365_CSC_READY; | |
482 | } | |
483 | if (irq_mode == 1) | |
484 | reg |= 0x30; /* management IRQ: PCI INTA# = "irq 3" */ | |
485 | indirect_write(socket, I365_CSCINT, reg); | |
486 | ||
487 | reg = indirect_read(socket, I365_INTCTL); | |
488 | if (irq_mode == 1) | |
489 | reg |= 0x03; /* card IRQ: PCI INTA# = "irq 3" */ | |
490 | else | |
491 | reg |= socket->card_irq; | |
492 | indirect_write(socket, I365_INTCTL, reg); | |
493 | ||
494 | /* now clear the (probably bogus) pending stuff by doing a dummy read */ | |
495 | (void)indirect_read(socket, I365_CSC); | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
500 | static int pd6729_set_io_map(struct pcmcia_socket *sock, | |
501 | struct pccard_io_map *io) | |
502 | { | |
503 | struct pd6729_socket *socket | |
504 | = container_of(sock, struct pd6729_socket, socket); | |
505 | unsigned char map, ioctl; | |
506 | ||
507 | map = io->map; | |
508 | ||
509 | /* Check error conditions */ | |
510 | if (map > 1) { | |
511 | dprintk("pd6729_set_io_map with invalid map"); | |
512 | return -EINVAL; | |
513 | } | |
514 | ||
515 | /* Turn off the window before changing anything */ | |
516 | if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map)) | |
517 | indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map)); | |
518 | ||
519 | /* dprintk("set_io_map: Setting range to %x - %x\n", | |
520 | io->start, io->stop);*/ | |
521 | ||
522 | /* write the new values */ | |
523 | indirect_write16(socket, I365_IO(map)+I365_W_START, io->start); | |
524 | indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop); | |
525 | ||
526 | ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); | |
527 | ||
528 | if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); | |
529 | if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); | |
530 | if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); | |
531 | ||
532 | indirect_write(socket, I365_IOCTL, ioctl); | |
533 | ||
534 | /* Turn the window back on if needed */ | |
535 | if (io->flags & MAP_ACTIVE) | |
536 | indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map)); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | static int pd6729_set_mem_map(struct pcmcia_socket *sock, | |
542 | struct pccard_mem_map *mem) | |
543 | { | |
544 | struct pd6729_socket *socket | |
545 | = container_of(sock, struct pd6729_socket, socket); | |
546 | unsigned short base, i; | |
547 | unsigned char map; | |
548 | ||
549 | map = mem->map; | |
550 | if (map > 4) { | |
551 | printk("pd6729_set_mem_map: invalid map"); | |
552 | return -EINVAL; | |
553 | } | |
554 | ||
555 | if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) { | |
556 | printk("pd6729_set_mem_map: invalid address / speed"); | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | /* Turn off the window before changing anything */ | |
561 | if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map)) | |
562 | indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map)); | |
563 | ||
564 | /* write the start address */ | |
565 | base = I365_MEM(map); | |
566 | i = (mem->res->start >> 12) & 0x0fff; | |
567 | if (mem->flags & MAP_16BIT) | |
568 | i |= I365_MEM_16BIT; | |
569 | if (mem->flags & MAP_0WS) | |
570 | i |= I365_MEM_0WS; | |
571 | indirect_write16(socket, base + I365_W_START, i); | |
572 | ||
573 | /* write the stop address */ | |
574 | ||
575 | i= (mem->res->end >> 12) & 0x0fff; | |
576 | switch (to_cycles(mem->speed)) { | |
577 | case 0: | |
578 | break; | |
579 | case 1: | |
580 | i |= I365_MEM_WS0; | |
581 | break; | |
582 | case 2: | |
583 | i |= I365_MEM_WS1; | |
584 | break; | |
585 | default: | |
586 | i |= I365_MEM_WS1 | I365_MEM_WS0; | |
587 | break; | |
588 | } | |
589 | ||
590 | indirect_write16(socket, base + I365_W_STOP, i); | |
591 | ||
592 | /* Take care of high byte */ | |
593 | indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map)); | |
594 | indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24); | |
595 | ||
596 | /* card start */ | |
597 | ||
598 | i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff; | |
599 | if (mem->flags & MAP_WRPROT) | |
600 | i |= I365_MEM_WRPROT; | |
601 | if (mem->flags & MAP_ATTRIB) { | |
602 | /* dprintk("requesting attribute memory for socket %i\n", | |
603 | socket->number);*/ | |
604 | i |= I365_MEM_REG; | |
605 | } else { | |
606 | /* dprintk("requesting normal memory for socket %i\n", | |
607 | socket->number);*/ | |
608 | } | |
609 | indirect_write16(socket, base + I365_W_OFF, i); | |
610 | ||
611 | /* Enable the window if necessary */ | |
612 | if (mem->flags & MAP_ACTIVE) | |
613 | indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map)); | |
614 | ||
615 | return 0; | |
616 | } | |
617 | ||
618 | static int pd6729_init(struct pcmcia_socket *sock) | |
619 | { | |
620 | int i; | |
621 | struct resource res = { .end = 0x0fff }; | |
622 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
623 | pccard_mem_map mem = { .res = &res, }; | |
624 | ||
625 | pd6729_set_socket(sock, &dead_socket); | |
626 | for (i = 0; i < 2; i++) { | |
627 | io.map = i; | |
628 | pd6729_set_io_map(sock, &io); | |
629 | } | |
630 | for (i = 0; i < 5; i++) { | |
631 | mem.map = i; | |
632 | pd6729_set_mem_map(sock, &mem); | |
633 | } | |
634 | ||
635 | return 0; | |
636 | } | |
637 | ||
638 | ||
639 | /* the pccard structure and its functions */ | |
640 | static struct pccard_operations pd6729_operations = { | |
641 | .init = pd6729_init, | |
642 | .get_status = pd6729_get_status, | |
643 | .get_socket = pd6729_get_socket, | |
644 | .set_socket = pd6729_set_socket, | |
645 | .set_io_map = pd6729_set_io_map, | |
646 | .set_mem_map = pd6729_set_mem_map, | |
647 | }; | |
648 | ||
649 | static irqreturn_t pd6729_test(int irq, void *dev, struct pt_regs *regs) | |
650 | { | |
651 | dprintk("-> hit on irq %d\n", irq); | |
652 | return IRQ_HANDLED; | |
653 | } | |
654 | ||
655 | static int pd6729_check_irq(int irq, int flags) | |
656 | { | |
657 | if (request_irq(irq, pd6729_test, flags, "x", pd6729_test) != 0) | |
658 | return -1; | |
659 | free_irq(irq, pd6729_test); | |
660 | return 0; | |
661 | } | |
662 | ||
663 | static u_int __init pd6729_isa_scan(void) | |
664 | { | |
665 | u_int mask0, mask = 0; | |
666 | int i; | |
667 | ||
668 | if (irq_mode == 1) { | |
669 | printk(KERN_INFO "pd6729: PCI card interrupts, " | |
670 | "PCI status changes\n"); | |
671 | return 0; | |
672 | } | |
673 | ||
674 | if (irq_list_count == 0) | |
675 | mask0 = 0xffff; | |
676 | else | |
677 | for (i = mask0 = 0; i < irq_list_count; i++) | |
678 | mask0 |= (1<<irq_list[i]); | |
679 | ||
680 | mask0 &= PD67_MASK; | |
681 | ||
682 | /* just find interrupts that aren't in use */ | |
683 | for (i = 0; i < 16; i++) | |
684 | if ((mask0 & (1 << i)) && (pd6729_check_irq(i, 0) == 0)) | |
685 | mask |= (1 << i); | |
686 | ||
687 | printk(KERN_INFO "pd6729: ISA irqs = "); | |
688 | for (i = 0; i < 16; i++) | |
689 | if (mask & (1<<i)) | |
690 | printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i); | |
691 | ||
692 | if (mask == 0) printk("none!"); | |
693 | ||
694 | printk(" polling status changes.\n"); | |
695 | ||
696 | return mask; | |
697 | } | |
698 | ||
699 | static int __devinit pd6729_pci_probe(struct pci_dev *dev, | |
700 | const struct pci_device_id *id) | |
701 | { | |
702 | int i, j, ret; | |
703 | u_int mask; | |
704 | char configbyte; | |
705 | struct pd6729_socket *socket; | |
706 | ||
707 | socket = kmalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS, | |
708 | GFP_KERNEL); | |
709 | if (!socket) | |
710 | return -ENOMEM; | |
711 | ||
712 | memset(socket, 0, sizeof(struct pd6729_socket) * MAX_SOCKETS); | |
713 | ||
714 | if ((ret = pci_enable_device(dev))) | |
715 | goto err_out_free_mem; | |
716 | ||
717 | printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge " | |
718 | "at 0x%lx on irq %d\n", pci_resource_start(dev, 0), dev->irq); | |
719 | /* | |
720 | * Since we have no memory BARs some firmware may not | |
721 | * have had PCI_COMMAND_MEMORY enabled, yet the device needs it. | |
722 | */ | |
723 | pci_read_config_byte(dev, PCI_COMMAND, &configbyte); | |
724 | if (!(configbyte & PCI_COMMAND_MEMORY)) { | |
725 | printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n"); | |
726 | configbyte |= PCI_COMMAND_MEMORY; | |
727 | pci_write_config_byte(dev, PCI_COMMAND, configbyte); | |
728 | } | |
729 | ||
730 | ret = pci_request_regions(dev, "pd6729"); | |
731 | if (ret) { | |
732 | printk(KERN_INFO "pd6729: pci request region failed.\n"); | |
733 | goto err_out_disable; | |
734 | } | |
735 | ||
736 | if (dev->irq == NO_IRQ) | |
737 | irq_mode = 0; /* fall back to ISA interrupt mode */ | |
738 | ||
739 | mask = pd6729_isa_scan(); | |
740 | if (irq_mode == 0 && mask == 0) { | |
741 | printk(KERN_INFO "pd6729: no ISA interrupt is available.\n"); | |
742 | goto err_out_free_res; | |
743 | } | |
744 | ||
745 | for (i = 0; i < MAX_SOCKETS; i++) { | |
746 | socket[i].io_base = pci_resource_start(dev, 0); | |
747 | socket[i].socket.features |= SS_CAP_PCCARD; | |
748 | socket[i].socket.map_size = 0x1000; | |
749 | socket[i].socket.irq_mask = mask; | |
750 | socket[i].socket.pci_irq = dev->irq; | |
751 | socket[i].socket.owner = THIS_MODULE; | |
752 | ||
753 | socket[i].number = i; | |
754 | ||
755 | socket[i].socket.ops = &pd6729_operations; | |
756 | socket[i].socket.resource_ops = &pccard_nonstatic_ops; | |
757 | socket[i].socket.dev.dev = &dev->dev; | |
758 | socket[i].socket.driver_data = &socket[i]; | |
759 | } | |
760 | ||
761 | pci_set_drvdata(dev, socket); | |
762 | if (irq_mode == 1) { | |
763 | /* Register the interrupt handler */ | |
764 | if ((ret = request_irq(dev->irq, pd6729_interrupt, SA_SHIRQ, | |
765 | "pd6729", socket))) { | |
766 | printk(KERN_ERR "pd6729: Failed to register irq %d, " | |
767 | "aborting\n", dev->irq); | |
768 | goto err_out_free_res; | |
769 | } | |
770 | } else { | |
771 | /* poll Card status change */ | |
772 | init_timer(&socket->poll_timer); | |
773 | socket->poll_timer.function = pd6729_interrupt_wrapper; | |
774 | socket->poll_timer.data = (unsigned long)socket; | |
775 | socket->poll_timer.expires = jiffies + HZ; | |
776 | add_timer(&socket->poll_timer); | |
777 | } | |
778 | ||
779 | for (i = 0; i < MAX_SOCKETS; i++) { | |
780 | ret = pcmcia_register_socket(&socket[i].socket); | |
781 | if (ret) { | |
782 | printk(KERN_INFO "pd6729: pcmcia_register_socket " | |
783 | "failed.\n"); | |
784 | for (j = 0; j < i ; j++) | |
785 | pcmcia_unregister_socket(&socket[j].socket); | |
786 | goto err_out_free_res2; | |
787 | } | |
788 | } | |
789 | ||
790 | return 0; | |
791 | ||
792 | err_out_free_res2: | |
793 | if (irq_mode == 1) | |
794 | free_irq(dev->irq, socket); | |
795 | else | |
796 | del_timer_sync(&socket->poll_timer); | |
797 | err_out_free_res: | |
798 | pci_release_regions(dev); | |
799 | err_out_disable: | |
800 | pci_disable_device(dev); | |
801 | ||
802 | err_out_free_mem: | |
803 | kfree(socket); | |
804 | return ret; | |
805 | } | |
806 | ||
807 | static void __devexit pd6729_pci_remove(struct pci_dev *dev) | |
808 | { | |
809 | int i; | |
810 | struct pd6729_socket *socket = pci_get_drvdata(dev); | |
811 | ||
812 | for (i = 0; i < MAX_SOCKETS; i++) { | |
813 | /* Turn off all interrupt sources */ | |
814 | indirect_write(&socket[i], I365_CSCINT, 0); | |
815 | indirect_write(&socket[i], I365_INTCTL, 0); | |
816 | ||
817 | pcmcia_unregister_socket(&socket[i].socket); | |
818 | } | |
819 | ||
820 | if (irq_mode == 1) | |
821 | free_irq(dev->irq, socket); | |
822 | else | |
823 | del_timer_sync(&socket->poll_timer); | |
824 | pci_release_regions(dev); | |
825 | pci_disable_device(dev); | |
826 | ||
827 | kfree(socket); | |
828 | } | |
829 | ||
830 | static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state) | |
831 | { | |
832 | return pcmcia_socket_dev_suspend(&dev->dev, state); | |
833 | } | |
834 | ||
835 | static int pd6729_socket_resume(struct pci_dev *dev) | |
836 | { | |
837 | return pcmcia_socket_dev_resume(&dev->dev); | |
838 | } | |
839 | ||
840 | static struct pci_device_id pd6729_pci_ids[] = { | |
841 | { | |
842 | .vendor = PCI_VENDOR_ID_CIRRUS, | |
843 | .device = PCI_DEVICE_ID_CIRRUS_6729, | |
844 | .subvendor = PCI_ANY_ID, | |
845 | .subdevice = PCI_ANY_ID, | |
846 | }, | |
847 | { } | |
848 | }; | |
849 | MODULE_DEVICE_TABLE(pci, pd6729_pci_ids); | |
850 | ||
851 | static struct pci_driver pd6729_pci_drv = { | |
852 | .name = "pd6729", | |
853 | .id_table = pd6729_pci_ids, | |
854 | .probe = pd6729_pci_probe, | |
855 | .remove = __devexit_p(pd6729_pci_remove), | |
856 | .suspend = pd6729_socket_suspend, | |
857 | .resume = pd6729_socket_resume, | |
858 | }; | |
859 | ||
860 | static int pd6729_module_init(void) | |
861 | { | |
862 | return pci_register_driver(&pd6729_pci_drv); | |
863 | } | |
864 | ||
865 | static void pd6729_module_exit(void) | |
866 | { | |
867 | pci_unregister_driver(&pd6729_pci_drv); | |
868 | } | |
869 | ||
870 | module_init(pd6729_module_init); | |
871 | module_exit(pd6729_module_exit); |