Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services. | |
3 | * | |
ada8e951 | 4 | * Copyright (C) 2003-2005 Yoichi Yuasa <yuasa@linux-mips.org> |
1da177e4 LT |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | #include <linux/init.h> | |
21 | #include <linux/ioport.h> | |
22 | #include <linux/interrupt.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/spinlock.h> | |
1da177e4 | 25 | #include <linux/types.h> |
d052d1be | 26 | #include <linux/platform_device.h> |
1da177e4 LT |
27 | |
28 | #include <asm/io.h> | |
29 | ||
30 | #include <pcmcia/ss.h> | |
31 | ||
32 | #include "i82365.h" | |
33 | ||
34 | MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services"); | |
ada8e951 | 35 | MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>"); |
1da177e4 LT |
36 | MODULE_LICENSE("GPL"); |
37 | ||
38 | #define CARD_MAX_SLOTS 2 | |
39 | #define CARD_SLOTA 0 | |
40 | #define CARD_SLOTB 1 | |
41 | #define CARD_SLOTB_OFFSET 0x40 | |
42 | ||
43 | #define CARD_MEM_START 0x10000000 | |
44 | #define CARD_MEM_END 0x13ffffff | |
45 | #define CARD_MAX_MEM_OFFSET 0x3ffffff | |
46 | #define CARD_MAX_MEM_SPEED 1000 | |
47 | ||
48 | #define CARD_CONTROLLER_INDEX 0x03e0 | |
49 | #define CARD_CONTROLLER_DATA 0x03e1 | |
50 | /* Power register */ | |
51 | #define VPP_GET_VCC 0x01 | |
52 | #define POWER_ENABLE 0x10 | |
53 | #define CARD_VOLTAGE_SENSE 0x1f | |
54 | #define VCC_3VORXV_CAPABLE 0x00 | |
55 | #define VCC_XV_ONLY 0x01 | |
56 | #define VCC_3V_CAPABLE 0x02 | |
57 | #define VCC_5V_ONLY 0x03 | |
58 | #define CARD_VOLTAGE_SELECT 0x2f | |
59 | #define VCC_3V 0x01 | |
60 | #define VCC_5V 0x00 | |
61 | #define VCC_XV 0x02 | |
62 | #define VCC_STATUS_3V 0x02 | |
63 | #define VCC_STATUS_5V 0x01 | |
64 | #define VCC_STATUS_XV 0x03 | |
65 | #define GLOBAL_CONTROL 0x1e | |
66 | #define EXWRBK 0x04 | |
67 | #define IRQPM_EN 0x08 | |
68 | #define CLRPMIRQ 0x10 | |
69 | ||
70 | #define INTERRUPT_STATUS 0x05fa | |
71 | #define IRQ_A 0x02 | |
72 | #define IRQ_B 0x04 | |
73 | ||
74 | #define CONFIGURATION1 0x05fe | |
75 | #define SLOTB_CONFIG 0xc000 | |
76 | #define SLOTB_NONE 0x0000 | |
77 | #define SLOTB_PCCARD 0x4000 | |
78 | #define SLOTB_CF 0x8000 | |
79 | #define SLOTB_FLASHROM 0xc000 | |
80 | ||
81 | #define CARD_CONTROLLER_START CARD_CONTROLLER_INDEX | |
82 | #define CARD_CONTROLLER_END CARD_CONTROLLER_DATA | |
83 | ||
84 | #define IO_MAX_MAPS 2 | |
85 | #define MEM_MAX_MAPS 5 | |
86 | ||
87 | typedef enum { | |
88 | SLOT_PROBE = 0, | |
89 | SLOT_NOPROBE_IO, | |
90 | SLOT_NOPROBE_MEM, | |
91 | SLOT_NOPROBE_ALL, | |
92 | SLOT_INITIALIZED, | |
93 | } vrc4171_slot_t; | |
94 | ||
95 | typedef enum { | |
96 | SLOTB_IS_NONE, | |
97 | SLOTB_IS_PCCARD, | |
98 | SLOTB_IS_CF, | |
99 | SLOTB_IS_FLASHROM, | |
100 | } vrc4171_slotb_t; | |
101 | ||
102 | typedef struct vrc4171_socket { | |
103 | vrc4171_slot_t slot; | |
104 | struct pcmcia_socket pcmcia_socket; | |
105 | char name[24]; | |
106 | int csc_irq; | |
107 | int io_irq; | |
7a410e8d | 108 | spinlock_t lock; |
1da177e4 LT |
109 | } vrc4171_socket_t; |
110 | ||
111 | static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS]; | |
112 | static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE; | |
113 | static char vrc4171_card_name[] = "NEC VRC4171 Card Controller"; | |
114 | static unsigned int vrc4171_irq; | |
115 | static uint16_t vrc4171_irq_mask = 0xdeb8; | |
116 | ||
117 | static struct resource vrc4171_card_resource[3] = { | |
118 | { .name = vrc4171_card_name, | |
119 | .start = CARD_CONTROLLER_START, | |
120 | .end = CARD_CONTROLLER_END, | |
121 | .flags = IORESOURCE_IO, }, | |
122 | { .name = vrc4171_card_name, | |
123 | .start = INTERRUPT_STATUS, | |
124 | .end = INTERRUPT_STATUS, | |
125 | .flags = IORESOURCE_IO, }, | |
126 | { .name = vrc4171_card_name, | |
127 | .start = CONFIGURATION1, | |
128 | .end = CONFIGURATION1, | |
129 | .flags = IORESOURCE_IO, }, | |
130 | }; | |
131 | ||
132 | static struct platform_device vrc4171_card_device = { | |
133 | .name = vrc4171_card_name, | |
134 | .id = 0, | |
135 | .num_resources = 3, | |
136 | .resource = vrc4171_card_resource, | |
137 | }; | |
138 | ||
139 | static inline uint16_t vrc4171_get_irq_status(void) | |
140 | { | |
141 | return inw(INTERRUPT_STATUS); | |
142 | } | |
143 | ||
144 | static inline void vrc4171_set_multifunction_pin(vrc4171_slotb_t config) | |
145 | { | |
146 | uint16_t config1; | |
147 | ||
148 | config1 = inw(CONFIGURATION1); | |
149 | config1 &= ~SLOTB_CONFIG; | |
150 | ||
151 | switch (config) { | |
152 | case SLOTB_IS_NONE: | |
153 | config1 |= SLOTB_NONE; | |
154 | break; | |
155 | case SLOTB_IS_PCCARD: | |
156 | config1 |= SLOTB_PCCARD; | |
157 | break; | |
158 | case SLOTB_IS_CF: | |
159 | config1 |= SLOTB_CF; | |
160 | break; | |
161 | case SLOTB_IS_FLASHROM: | |
162 | config1 |= SLOTB_FLASHROM; | |
163 | break; | |
164 | default: | |
165 | break; | |
166 | } | |
167 | ||
168 | outw(config1, CONFIGURATION1); | |
169 | } | |
170 | ||
171 | static inline uint8_t exca_read_byte(int slot, uint8_t index) | |
172 | { | |
173 | if (slot == CARD_SLOTB) | |
174 | index += CARD_SLOTB_OFFSET; | |
175 | ||
176 | outb(index, CARD_CONTROLLER_INDEX); | |
177 | return inb(CARD_CONTROLLER_DATA); | |
178 | } | |
179 | ||
180 | static inline uint16_t exca_read_word(int slot, uint8_t index) | |
181 | { | |
182 | uint16_t data; | |
183 | ||
184 | if (slot == CARD_SLOTB) | |
185 | index += CARD_SLOTB_OFFSET; | |
186 | ||
187 | outb(index++, CARD_CONTROLLER_INDEX); | |
188 | data = inb(CARD_CONTROLLER_DATA); | |
189 | ||
190 | outb(index, CARD_CONTROLLER_INDEX); | |
191 | data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8; | |
192 | ||
193 | return data; | |
194 | } | |
195 | ||
196 | static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data) | |
197 | { | |
198 | if (slot == CARD_SLOTB) | |
199 | index += CARD_SLOTB_OFFSET; | |
200 | ||
201 | outb(index, CARD_CONTROLLER_INDEX); | |
202 | outb(data, CARD_CONTROLLER_DATA); | |
203 | ||
204 | return data; | |
205 | } | |
206 | ||
207 | static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data) | |
208 | { | |
209 | if (slot == CARD_SLOTB) | |
210 | index += CARD_SLOTB_OFFSET; | |
211 | ||
212 | outb(index++, CARD_CONTROLLER_INDEX); | |
213 | outb(data, CARD_CONTROLLER_DATA); | |
214 | ||
215 | outb(index, CARD_CONTROLLER_INDEX); | |
216 | outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA); | |
217 | ||
218 | return data; | |
219 | } | |
220 | ||
221 | static inline int search_nonuse_irq(void) | |
222 | { | |
223 | int i; | |
224 | ||
225 | for (i = 0; i < 16; i++) { | |
226 | if (vrc4171_irq_mask & (1 << i)) { | |
227 | vrc4171_irq_mask &= ~(1 << i); | |
228 | return i; | |
229 | } | |
230 | } | |
231 | ||
232 | return -1; | |
233 | } | |
234 | ||
235 | static int pccard_init(struct pcmcia_socket *sock) | |
236 | { | |
237 | vrc4171_socket_t *socket; | |
238 | unsigned int slot; | |
239 | ||
240 | sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS; | |
241 | sock->irq_mask = 0; | |
242 | sock->map_size = 0x1000; | |
243 | sock->pci_irq = vrc4171_irq; | |
244 | ||
245 | slot = sock->sock; | |
246 | socket = &vrc4171_sockets[slot]; | |
247 | socket->csc_irq = search_nonuse_irq(); | |
248 | socket->io_irq = search_nonuse_irq(); | |
811af972 | 249 | spin_lock_init(&socket->lock); |
1da177e4 LT |
250 | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static int pccard_get_status(struct pcmcia_socket *sock, u_int *value) | |
255 | { | |
256 | unsigned int slot; | |
257 | uint8_t status, sense; | |
258 | u_int val = 0; | |
259 | ||
260 | if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL) | |
261 | return -EINVAL; | |
262 | ||
263 | slot = sock->sock; | |
264 | ||
265 | status = exca_read_byte(slot, I365_STATUS); | |
266 | if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) { | |
267 | if (status & I365_CS_STSCHG) | |
268 | val |= SS_STSCHG; | |
269 | } else { | |
270 | if (!(status & I365_CS_BVD1)) | |
271 | val |= SS_BATDEAD; | |
272 | else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1) | |
273 | val |= SS_BATWARN; | |
274 | } | |
275 | if ((status & I365_CS_DETECT) == I365_CS_DETECT) | |
276 | val |= SS_DETECT; | |
277 | if (status & I365_CS_WRPROT) | |
278 | val |= SS_WRPROT; | |
279 | if (status & I365_CS_READY) | |
280 | val |= SS_READY; | |
281 | if (status & I365_CS_POWERON) | |
282 | val |= SS_POWERON; | |
283 | ||
284 | sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE); | |
285 | switch (sense) { | |
286 | case VCC_3VORXV_CAPABLE: | |
287 | val |= SS_3VCARD | SS_XVCARD; | |
288 | break; | |
289 | case VCC_XV_ONLY: | |
290 | val |= SS_XVCARD; | |
291 | break; | |
292 | case VCC_3V_CAPABLE: | |
293 | val |= SS_3VCARD; | |
294 | break; | |
295 | default: | |
296 | /* 5V only */ | |
297 | break; | |
298 | } | |
299 | ||
300 | *value = val; | |
301 | ||
302 | return 0; | |
303 | } | |
304 | ||
1da177e4 LT |
305 | static inline uint8_t set_Vcc_value(u_char Vcc) |
306 | { | |
307 | switch (Vcc) { | |
308 | case 33: | |
309 | return VCC_3V; | |
310 | case 50: | |
311 | return VCC_5V; | |
312 | } | |
313 | ||
314 | /* Small voltage is chosen for safety. */ | |
315 | return VCC_3V; | |
316 | } | |
317 | ||
318 | static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
319 | { | |
320 | vrc4171_socket_t *socket; | |
321 | unsigned int slot; | |
322 | uint8_t voltage, power, control, cscint; | |
323 | ||
324 | if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || | |
325 | (state->Vpp != state->Vcc && state->Vpp != 0) || | |
326 | (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0)) | |
327 | return -EINVAL; | |
328 | ||
329 | slot = sock->sock; | |
330 | socket = &vrc4171_sockets[slot]; | |
331 | ||
7a410e8d | 332 | spin_lock_irq(&socket->lock); |
1da177e4 LT |
333 | |
334 | voltage = set_Vcc_value(state->Vcc); | |
335 | exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage); | |
336 | ||
337 | power = POWER_ENABLE; | |
338 | if (state->Vpp == state->Vcc) | |
339 | power |= VPP_GET_VCC; | |
340 | if (state->flags & SS_OUTPUT_ENA) | |
341 | power |= I365_PWR_OUT; | |
342 | exca_write_byte(slot, I365_POWER, power); | |
343 | ||
344 | control = 0; | |
345 | if (state->io_irq != 0) | |
346 | control |= socket->io_irq; | |
347 | if (state->flags & SS_IOCARD) | |
348 | control |= I365_PC_IOCARD; | |
349 | if (state->flags & SS_RESET) | |
350 | control &= ~I365_PC_RESET; | |
351 | else | |
352 | control |= I365_PC_RESET; | |
353 | exca_write_byte(slot, I365_INTCTL, control); | |
354 | ||
355 | cscint = 0; | |
356 | exca_write_byte(slot, I365_CSCINT, cscint); | |
357 | exca_read_byte(slot, I365_CSC); /* clear CardStatus change */ | |
358 | if (state->csc_mask != 0) | |
359 | cscint |= socket->csc_irq << 8; | |
360 | if (state->flags & SS_IOCARD) { | |
361 | if (state->csc_mask & SS_STSCHG) | |
362 | cscint |= I365_CSC_STSCHG; | |
363 | } else { | |
364 | if (state->csc_mask & SS_BATDEAD) | |
365 | cscint |= I365_CSC_BVD1; | |
366 | if (state->csc_mask & SS_BATWARN) | |
367 | cscint |= I365_CSC_BVD2; | |
368 | } | |
369 | if (state->csc_mask & SS_READY) | |
370 | cscint |= I365_CSC_READY; | |
371 | if (state->csc_mask & SS_DETECT) | |
372 | cscint |= I365_CSC_DETECT; | |
373 | exca_write_byte(slot, I365_CSCINT, cscint); | |
374 | ||
7a410e8d | 375 | spin_unlock_irq(&socket->lock); |
1da177e4 LT |
376 | |
377 | return 0; | |
378 | } | |
379 | ||
380 | static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) | |
381 | { | |
382 | unsigned int slot; | |
383 | uint8_t ioctl, addrwin; | |
384 | u_char map; | |
385 | ||
386 | if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || | |
387 | io == NULL || io->map >= IO_MAX_MAPS || | |
388 | io->start > 0xffff || io->stop > 0xffff || io->start > io->stop) | |
389 | return -EINVAL; | |
390 | ||
391 | slot = sock->sock; | |
392 | map = io->map; | |
393 | ||
394 | addrwin = exca_read_byte(slot, I365_ADDRWIN); | |
395 | if (addrwin & I365_ENA_IO(map)) { | |
396 | addrwin &= ~I365_ENA_IO(map); | |
397 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
398 | } | |
399 | ||
400 | exca_write_word(slot, I365_IO(map)+I365_W_START, io->start); | |
401 | exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop); | |
402 | ||
403 | ioctl = 0; | |
404 | if (io->speed > 0) | |
405 | ioctl |= I365_IOCTL_WAIT(map); | |
406 | if (io->flags & MAP_16BIT) | |
407 | ioctl |= I365_IOCTL_16BIT(map); | |
408 | if (io->flags & MAP_AUTOSZ) | |
409 | ioctl |= I365_IOCTL_IOCS16(map); | |
410 | if (io->flags & MAP_0WS) | |
411 | ioctl |= I365_IOCTL_0WS(map); | |
412 | exca_write_byte(slot, I365_IOCTL, ioctl); | |
413 | ||
414 | if (io->flags & MAP_ACTIVE) { | |
415 | addrwin |= I365_ENA_IO(map); | |
416 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
417 | } | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) | |
423 | { | |
424 | unsigned int slot; | |
425 | uint16_t start, stop, offset; | |
426 | uint8_t addrwin; | |
427 | u_char map; | |
428 | ||
429 | if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || | |
430 | mem == NULL || mem->map >= MEM_MAX_MAPS || | |
431 | mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END || | |
432 | mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END || | |
433 | mem->res->start > mem->res->end || | |
434 | mem->card_start > CARD_MAX_MEM_OFFSET || | |
435 | mem->speed > CARD_MAX_MEM_SPEED) | |
436 | return -EINVAL; | |
437 | ||
438 | slot = sock->sock; | |
439 | map = mem->map; | |
440 | ||
441 | addrwin = exca_read_byte(slot, I365_ADDRWIN); | |
442 | if (addrwin & I365_ENA_MEM(map)) { | |
443 | addrwin &= ~I365_ENA_MEM(map); | |
444 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
445 | } | |
446 | ||
447 | start = (mem->res->start >> 12) & 0x3fff; | |
448 | if (mem->flags & MAP_16BIT) | |
449 | start |= I365_MEM_16BIT; | |
450 | exca_write_word(slot, I365_MEM(map)+I365_W_START, start); | |
451 | ||
452 | stop = (mem->res->end >> 12) & 0x3fff; | |
453 | switch (mem->speed) { | |
454 | case 0: | |
455 | break; | |
456 | case 1: | |
457 | stop |= I365_MEM_WS0; | |
458 | break; | |
459 | case 2: | |
460 | stop |= I365_MEM_WS1; | |
461 | break; | |
462 | default: | |
463 | stop |= I365_MEM_WS0 | I365_MEM_WS1; | |
464 | break; | |
465 | } | |
466 | exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop); | |
467 | ||
468 | offset = (mem->card_start >> 12) & 0x3fff; | |
469 | if (mem->flags & MAP_ATTRIB) | |
470 | offset |= I365_MEM_REG; | |
471 | if (mem->flags & MAP_WRPROT) | |
472 | offset |= I365_MEM_WRPROT; | |
473 | exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset); | |
474 | ||
475 | if (mem->flags & MAP_ACTIVE) { | |
476 | addrwin |= I365_ENA_MEM(map); | |
477 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
478 | } | |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | static struct pccard_operations vrc4171_pccard_operations = { | |
484 | .init = pccard_init, | |
485 | .get_status = pccard_get_status, | |
1da177e4 LT |
486 | .set_socket = pccard_set_socket, |
487 | .set_io_map = pccard_set_io_map, | |
488 | .set_mem_map = pccard_set_mem_map, | |
489 | }; | |
490 | ||
491 | static inline unsigned int get_events(int slot) | |
492 | { | |
493 | unsigned int events = 0; | |
494 | uint8_t status, csc; | |
495 | ||
496 | status = exca_read_byte(slot, I365_STATUS); | |
497 | csc = exca_read_byte(slot, I365_CSC); | |
498 | ||
499 | if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) { | |
500 | if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG)) | |
501 | events |= SS_STSCHG; | |
502 | } else { | |
503 | if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) { | |
504 | if (!(status & I365_CS_BVD1)) | |
505 | events |= SS_BATDEAD; | |
506 | else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1) | |
507 | events |= SS_BATWARN; | |
508 | } | |
509 | } | |
510 | if ((csc & I365_CSC_READY) && (status & I365_CS_READY)) | |
511 | events |= SS_READY; | |
512 | if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT)) | |
513 | events |= SS_DETECT; | |
514 | ||
515 | return events; | |
516 | } | |
517 | ||
7d12e780 | 518 | static irqreturn_t pccard_interrupt(int irq, void *dev_id) |
1da177e4 LT |
519 | { |
520 | vrc4171_socket_t *socket; | |
521 | unsigned int events; | |
522 | irqreturn_t retval = IRQ_NONE; | |
523 | uint16_t status; | |
524 | ||
525 | status = vrc4171_get_irq_status(); | |
526 | if (status & IRQ_A) { | |
527 | socket = &vrc4171_sockets[CARD_SLOTA]; | |
528 | if (socket->slot == SLOT_INITIALIZED) { | |
529 | if (status & (1 << socket->csc_irq)) { | |
530 | events = get_events(CARD_SLOTA); | |
531 | if (events != 0) { | |
532 | pcmcia_parse_events(&socket->pcmcia_socket, events); | |
533 | retval = IRQ_HANDLED; | |
534 | } | |
535 | } | |
536 | } | |
537 | } | |
538 | ||
539 | if (status & IRQ_B) { | |
540 | socket = &vrc4171_sockets[CARD_SLOTB]; | |
541 | if (socket->slot == SLOT_INITIALIZED) { | |
542 | if (status & (1 << socket->csc_irq)) { | |
543 | events = get_events(CARD_SLOTB); | |
544 | if (events != 0) { | |
545 | pcmcia_parse_events(&socket->pcmcia_socket, events); | |
546 | retval = IRQ_HANDLED; | |
547 | } | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
552 | return retval; | |
553 | } | |
554 | ||
555 | static inline void reserve_using_irq(int slot) | |
556 | { | |
557 | unsigned int irq; | |
558 | ||
559 | irq = exca_read_byte(slot, I365_INTCTL); | |
560 | irq &= 0x0f; | |
561 | vrc4171_irq_mask &= ~(1 << irq); | |
562 | ||
563 | irq = exca_read_byte(slot, I365_CSCINT); | |
564 | irq = (irq & 0xf0) >> 4; | |
565 | vrc4171_irq_mask &= ~(1 << irq); | |
566 | } | |
567 | ||
34cdf25a | 568 | static int vrc4171_add_sockets(void) |
1da177e4 LT |
569 | { |
570 | vrc4171_socket_t *socket; | |
571 | int slot, retval; | |
572 | ||
573 | for (slot = 0; slot < CARD_MAX_SLOTS; slot++) { | |
574 | if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE) | |
575 | continue; | |
576 | ||
577 | socket = &vrc4171_sockets[slot]; | |
578 | if (socket->slot != SLOT_PROBE) { | |
579 | uint8_t addrwin; | |
580 | ||
581 | switch (socket->slot) { | |
582 | case SLOT_NOPROBE_MEM: | |
583 | addrwin = exca_read_byte(slot, I365_ADDRWIN); | |
584 | addrwin &= 0x1f; | |
585 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
586 | break; | |
587 | case SLOT_NOPROBE_IO: | |
588 | addrwin = exca_read_byte(slot, I365_ADDRWIN); | |
589 | addrwin &= 0xc0; | |
590 | exca_write_byte(slot, I365_ADDRWIN, addrwin); | |
591 | break; | |
592 | default: | |
593 | break; | |
594 | } | |
595 | ||
596 | reserve_using_irq(slot); | |
597 | continue; | |
598 | } | |
599 | ||
600 | sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot); | |
dfe461ae | 601 | socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev; |
1da177e4 LT |
602 | socket->pcmcia_socket.ops = &vrc4171_pccard_operations; |
603 | socket->pcmcia_socket.owner = THIS_MODULE; | |
604 | ||
605 | retval = pcmcia_register_socket(&socket->pcmcia_socket); | |
606 | if (retval < 0) | |
607 | return retval; | |
608 | ||
609 | exca_write_byte(slot, I365_ADDRWIN, 0); | |
610 | exca_write_byte(slot, GLOBAL_CONTROL, 0); | |
611 | ||
612 | socket->slot = SLOT_INITIALIZED; | |
613 | } | |
614 | ||
615 | return 0; | |
616 | } | |
617 | ||
618 | static void vrc4171_remove_sockets(void) | |
619 | { | |
620 | vrc4171_socket_t *socket; | |
621 | int slot; | |
622 | ||
623 | for (slot = 0; slot < CARD_MAX_SLOTS; slot++) { | |
624 | if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE) | |
625 | continue; | |
626 | ||
627 | socket = &vrc4171_sockets[slot]; | |
628 | if (socket->slot == SLOT_INITIALIZED) | |
629 | pcmcia_unregister_socket(&socket->pcmcia_socket); | |
630 | ||
631 | socket->slot = SLOT_PROBE; | |
632 | } | |
633 | } | |
634 | ||
34cdf25a | 635 | static int vrc4171_card_setup(char *options) |
1da177e4 LT |
636 | { |
637 | if (options == NULL || *options == '\0') | |
9b41046c | 638 | return 1; |
1da177e4 LT |
639 | |
640 | if (strncmp(options, "irq:", 4) == 0) { | |
641 | int irq; | |
642 | options += 4; | |
643 | irq = simple_strtoul(options, &options, 0); | |
9130adda | 644 | if (irq >= 0 && irq < nr_irqs) |
1da177e4 LT |
645 | vrc4171_irq = irq; |
646 | ||
647 | if (*options != ',') | |
9b41046c | 648 | return 1; |
1da177e4 LT |
649 | options++; |
650 | } | |
651 | ||
652 | if (strncmp(options, "slota:", 6) == 0) { | |
653 | options += 6; | |
654 | if (*options != '\0') { | |
655 | if (strncmp(options, "memnoprobe", 10) == 0) { | |
656 | vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM; | |
657 | options += 10; | |
658 | } else if (strncmp(options, "ionoprobe", 9) == 0) { | |
659 | vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO; | |
660 | options += 9; | |
661 | } else if ( strncmp(options, "noprobe", 7) == 0) { | |
662 | vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL; | |
663 | options += 7; | |
664 | } | |
665 | ||
666 | if (*options != ',') | |
9b41046c | 667 | return 1; |
1da177e4 LT |
668 | options++; |
669 | } else | |
9b41046c | 670 | return 1; |
1da177e4 LT |
671 | |
672 | } | |
673 | ||
674 | if (strncmp(options, "slotb:", 6) == 0) { | |
675 | options += 6; | |
676 | if (*options != '\0') { | |
677 | if (strncmp(options, "pccard", 6) == 0) { | |
678 | vrc4171_slotb = SLOTB_IS_PCCARD; | |
679 | options += 6; | |
680 | } else if (strncmp(options, "cf", 2) == 0) { | |
681 | vrc4171_slotb = SLOTB_IS_CF; | |
682 | options += 2; | |
683 | } else if (strncmp(options, "flashrom", 8) == 0) { | |
684 | vrc4171_slotb = SLOTB_IS_FLASHROM; | |
685 | options += 8; | |
686 | } else if (strncmp(options, "none", 4) == 0) { | |
687 | vrc4171_slotb = SLOTB_IS_NONE; | |
688 | options += 4; | |
689 | } | |
690 | ||
691 | if (*options != ',') | |
9b41046c | 692 | return 1; |
1da177e4 LT |
693 | options++; |
694 | ||
695 | if (strncmp(options, "memnoprobe", 10) == 0) | |
696 | vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM; | |
697 | if (strncmp(options, "ionoprobe", 9) == 0) | |
698 | vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO; | |
699 | if (strncmp(options, "noprobe", 7) == 0) | |
700 | vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL; | |
701 | } | |
702 | } | |
703 | ||
9b41046c | 704 | return 1; |
1da177e4 LT |
705 | } |
706 | ||
707 | __setup("vrc4171_card=", vrc4171_card_setup); | |
708 | ||
7a192ec3 ML |
709 | static struct platform_driver vrc4171_card_driver = { |
710 | .driver = { | |
711 | .name = vrc4171_card_name, | |
712 | .owner = THIS_MODULE, | |
713 | }, | |
1da177e4 LT |
714 | }; |
715 | ||
34cdf25a | 716 | static int vrc4171_card_init(void) |
1da177e4 LT |
717 | { |
718 | int retval; | |
719 | ||
7a192ec3 | 720 | retval = platform_driver_register(&vrc4171_card_driver); |
1da177e4 LT |
721 | if (retval < 0) |
722 | return retval; | |
723 | ||
724 | retval = platform_device_register(&vrc4171_card_device); | |
725 | if (retval < 0) { | |
7a192ec3 | 726 | platform_driver_unregister(&vrc4171_card_driver); |
1da177e4 LT |
727 | return retval; |
728 | } | |
729 | ||
730 | vrc4171_set_multifunction_pin(vrc4171_slotb); | |
731 | ||
732 | retval = vrc4171_add_sockets(); | |
733 | if (retval == 0) | |
dace1453 | 734 | retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED, |
1da177e4 LT |
735 | vrc4171_card_name, vrc4171_sockets); |
736 | ||
737 | if (retval < 0) { | |
738 | vrc4171_remove_sockets(); | |
739 | platform_device_unregister(&vrc4171_card_device); | |
7a192ec3 | 740 | platform_driver_unregister(&vrc4171_card_driver); |
1da177e4 LT |
741 | return retval; |
742 | } | |
743 | ||
7a192ec3 ML |
744 | printk(KERN_INFO "%s, connected to IRQ %d\n", |
745 | vrc4171_card_driver.driver.name, vrc4171_irq); | |
1da177e4 LT |
746 | |
747 | return 0; | |
748 | } | |
749 | ||
e765a02c | 750 | static void vrc4171_card_exit(void) |
1da177e4 LT |
751 | { |
752 | free_irq(vrc4171_irq, vrc4171_sockets); | |
753 | vrc4171_remove_sockets(); | |
754 | platform_device_unregister(&vrc4171_card_device); | |
7a192ec3 | 755 | platform_driver_unregister(&vrc4171_card_driver); |
1da177e4 LT |
756 | } |
757 | ||
758 | module_init(vrc4171_card_init); | |
759 | module_exit(vrc4171_card_exit); |