vrc4171_card.c 17 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
  4. *
  5. * Copyright (C) 2003-2005 Yoichi Yuasa <yuasa@linux-mips.org>
  6. */
  7. #include <linux/init.h>
  8. #include <linux/ioport.h>
  9. #include <linux/interrupt.h>
  10. #include <linux/module.h>
  11. #include <linux/spinlock.h>
  12. #include <linux/types.h>
  13. #include <linux/platform_device.h>
  14. #include <asm/io.h>
  15. #include <pcmcia/ss.h>
  16. #include "i82365.h"
  17. MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  18. MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
  19. MODULE_LICENSE("GPL");
  20. #define CARD_MAX_SLOTS 2
  21. #define CARD_SLOTA 0
  22. #define CARD_SLOTB 1
  23. #define CARD_SLOTB_OFFSET 0x40
  24. #define CARD_MEM_START 0x10000000
  25. #define CARD_MEM_END 0x13ffffff
  26. #define CARD_MAX_MEM_OFFSET 0x3ffffff
  27. #define CARD_MAX_MEM_SPEED 1000
  28. #define CARD_CONTROLLER_INDEX 0x03e0
  29. #define CARD_CONTROLLER_DATA 0x03e1
  30. /* Power register */
  31. #define VPP_GET_VCC 0x01
  32. #define POWER_ENABLE 0x10
  33. #define CARD_VOLTAGE_SENSE 0x1f
  34. #define VCC_3VORXV_CAPABLE 0x00
  35. #define VCC_XV_ONLY 0x01
  36. #define VCC_3V_CAPABLE 0x02
  37. #define VCC_5V_ONLY 0x03
  38. #define CARD_VOLTAGE_SELECT 0x2f
  39. #define VCC_3V 0x01
  40. #define VCC_5V 0x00
  41. #define VCC_XV 0x02
  42. #define VCC_STATUS_3V 0x02
  43. #define VCC_STATUS_5V 0x01
  44. #define VCC_STATUS_XV 0x03
  45. #define GLOBAL_CONTROL 0x1e
  46. #define EXWRBK 0x04
  47. #define IRQPM_EN 0x08
  48. #define CLRPMIRQ 0x10
  49. #define INTERRUPT_STATUS 0x05fa
  50. #define IRQ_A 0x02
  51. #define IRQ_B 0x04
  52. #define CONFIGURATION1 0x05fe
  53. #define SLOTB_CONFIG 0xc000
  54. #define SLOTB_NONE 0x0000
  55. #define SLOTB_PCCARD 0x4000
  56. #define SLOTB_CF 0x8000
  57. #define SLOTB_FLASHROM 0xc000
  58. #define CARD_CONTROLLER_START CARD_CONTROLLER_INDEX
  59. #define CARD_CONTROLLER_END CARD_CONTROLLER_DATA
  60. #define IO_MAX_MAPS 2
  61. #define MEM_MAX_MAPS 5
  62. enum vrc4171_slot {
  63. SLOT_PROBE = 0,
  64. SLOT_NOPROBE_IO,
  65. SLOT_NOPROBE_MEM,
  66. SLOT_NOPROBE_ALL,
  67. SLOT_INITIALIZED,
  68. };
  69. enum vrc4171_slotb {
  70. SLOTB_IS_NONE,
  71. SLOTB_IS_PCCARD,
  72. SLOTB_IS_CF,
  73. SLOTB_IS_FLASHROM,
  74. };
  75. struct vrc4171_socket {
  76. enum vrc4171_slot slot;
  77. struct pcmcia_socket pcmcia_socket;
  78. char name[24];
  79. int csc_irq;
  80. int io_irq;
  81. spinlock_t lock;
  82. };
  83. static struct vrc4171_socket vrc4171_sockets[CARD_MAX_SLOTS];
  84. static enum vrc4171_slotb vrc4171_slotb = SLOTB_IS_NONE;
  85. static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
  86. static unsigned int vrc4171_irq;
  87. static uint16_t vrc4171_irq_mask = 0xdeb8;
  88. static struct resource vrc4171_card_resource[3] = {
  89. { .name = vrc4171_card_name,
  90. .start = CARD_CONTROLLER_START,
  91. .end = CARD_CONTROLLER_END,
  92. .flags = IORESOURCE_IO, },
  93. { .name = vrc4171_card_name,
  94. .start = INTERRUPT_STATUS,
  95. .end = INTERRUPT_STATUS,
  96. .flags = IORESOURCE_IO, },
  97. { .name = vrc4171_card_name,
  98. .start = CONFIGURATION1,
  99. .end = CONFIGURATION1,
  100. .flags = IORESOURCE_IO, },
  101. };
  102. static struct platform_device vrc4171_card_device = {
  103. .name = vrc4171_card_name,
  104. .id = 0,
  105. .num_resources = 3,
  106. .resource = vrc4171_card_resource,
  107. };
  108. static inline uint16_t vrc4171_get_irq_status(void)
  109. {
  110. return inw(INTERRUPT_STATUS);
  111. }
  112. static inline void vrc4171_set_multifunction_pin(enum vrc4171_slotb config)
  113. {
  114. uint16_t config1;
  115. config1 = inw(CONFIGURATION1);
  116. config1 &= ~SLOTB_CONFIG;
  117. switch (config) {
  118. case SLOTB_IS_NONE:
  119. config1 |= SLOTB_NONE;
  120. break;
  121. case SLOTB_IS_PCCARD:
  122. config1 |= SLOTB_PCCARD;
  123. break;
  124. case SLOTB_IS_CF:
  125. config1 |= SLOTB_CF;
  126. break;
  127. case SLOTB_IS_FLASHROM:
  128. config1 |= SLOTB_FLASHROM;
  129. break;
  130. default:
  131. break;
  132. }
  133. outw(config1, CONFIGURATION1);
  134. }
  135. static inline uint8_t exca_read_byte(int slot, uint8_t index)
  136. {
  137. if (slot == CARD_SLOTB)
  138. index += CARD_SLOTB_OFFSET;
  139. outb(index, CARD_CONTROLLER_INDEX);
  140. return inb(CARD_CONTROLLER_DATA);
  141. }
  142. static inline uint16_t exca_read_word(int slot, uint8_t index)
  143. {
  144. uint16_t data;
  145. if (slot == CARD_SLOTB)
  146. index += CARD_SLOTB_OFFSET;
  147. outb(index++, CARD_CONTROLLER_INDEX);
  148. data = inb(CARD_CONTROLLER_DATA);
  149. outb(index, CARD_CONTROLLER_INDEX);
  150. data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
  151. return data;
  152. }
  153. static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
  154. {
  155. if (slot == CARD_SLOTB)
  156. index += CARD_SLOTB_OFFSET;
  157. outb(index, CARD_CONTROLLER_INDEX);
  158. outb(data, CARD_CONTROLLER_DATA);
  159. return data;
  160. }
  161. static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
  162. {
  163. if (slot == CARD_SLOTB)
  164. index += CARD_SLOTB_OFFSET;
  165. outb(index++, CARD_CONTROLLER_INDEX);
  166. outb(data, CARD_CONTROLLER_DATA);
  167. outb(index, CARD_CONTROLLER_INDEX);
  168. outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
  169. return data;
  170. }
  171. static inline int search_nonuse_irq(void)
  172. {
  173. int i;
  174. for (i = 0; i < 16; i++) {
  175. if (vrc4171_irq_mask & (1 << i)) {
  176. vrc4171_irq_mask &= ~(1 << i);
  177. return i;
  178. }
  179. }
  180. return -1;
  181. }
  182. static int pccard_init(struct pcmcia_socket *sock)
  183. {
  184. struct vrc4171_socket *socket;
  185. unsigned int slot;
  186. sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
  187. sock->irq_mask = 0;
  188. sock->map_size = 0x1000;
  189. sock->pci_irq = vrc4171_irq;
  190. slot = sock->sock;
  191. socket = &vrc4171_sockets[slot];
  192. socket->csc_irq = search_nonuse_irq();
  193. socket->io_irq = search_nonuse_irq();
  194. spin_lock_init(&socket->lock);
  195. return 0;
  196. }
  197. static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
  198. {
  199. unsigned int slot;
  200. uint8_t status, sense;
  201. u_int val = 0;
  202. if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
  203. return -EINVAL;
  204. slot = sock->sock;
  205. status = exca_read_byte(slot, I365_STATUS);
  206. if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
  207. if (status & I365_CS_STSCHG)
  208. val |= SS_STSCHG;
  209. } else {
  210. if (!(status & I365_CS_BVD1))
  211. val |= SS_BATDEAD;
  212. else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
  213. val |= SS_BATWARN;
  214. }
  215. if ((status & I365_CS_DETECT) == I365_CS_DETECT)
  216. val |= SS_DETECT;
  217. if (status & I365_CS_WRPROT)
  218. val |= SS_WRPROT;
  219. if (status & I365_CS_READY)
  220. val |= SS_READY;
  221. if (status & I365_CS_POWERON)
  222. val |= SS_POWERON;
  223. sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
  224. switch (sense) {
  225. case VCC_3VORXV_CAPABLE:
  226. val |= SS_3VCARD | SS_XVCARD;
  227. break;
  228. case VCC_XV_ONLY:
  229. val |= SS_XVCARD;
  230. break;
  231. case VCC_3V_CAPABLE:
  232. val |= SS_3VCARD;
  233. break;
  234. default:
  235. /* 5V only */
  236. break;
  237. }
  238. *value = val;
  239. return 0;
  240. }
  241. static inline uint8_t set_Vcc_value(u_char Vcc)
  242. {
  243. switch (Vcc) {
  244. case 33:
  245. return VCC_3V;
  246. case 50:
  247. return VCC_5V;
  248. }
  249. /* Small voltage is chosen for safety. */
  250. return VCC_3V;
  251. }
  252. static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
  253. {
  254. struct vrc4171_socket *socket;
  255. unsigned int slot;
  256. uint8_t voltage, power, control, cscint;
  257. if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
  258. (state->Vpp != state->Vcc && state->Vpp != 0) ||
  259. (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
  260. return -EINVAL;
  261. slot = sock->sock;
  262. socket = &vrc4171_sockets[slot];
  263. spin_lock_irq(&socket->lock);
  264. voltage = set_Vcc_value(state->Vcc);
  265. exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
  266. power = POWER_ENABLE;
  267. if (state->Vpp == state->Vcc)
  268. power |= VPP_GET_VCC;
  269. if (state->flags & SS_OUTPUT_ENA)
  270. power |= I365_PWR_OUT;
  271. exca_write_byte(slot, I365_POWER, power);
  272. control = 0;
  273. if (state->io_irq != 0)
  274. control |= socket->io_irq;
  275. if (state->flags & SS_IOCARD)
  276. control |= I365_PC_IOCARD;
  277. if (state->flags & SS_RESET)
  278. control &= ~I365_PC_RESET;
  279. else
  280. control |= I365_PC_RESET;
  281. exca_write_byte(slot, I365_INTCTL, control);
  282. cscint = 0;
  283. exca_write_byte(slot, I365_CSCINT, cscint);
  284. exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
  285. if (state->csc_mask != 0)
  286. cscint |= socket->csc_irq << 8;
  287. if (state->flags & SS_IOCARD) {
  288. if (state->csc_mask & SS_STSCHG)
  289. cscint |= I365_CSC_STSCHG;
  290. } else {
  291. if (state->csc_mask & SS_BATDEAD)
  292. cscint |= I365_CSC_BVD1;
  293. if (state->csc_mask & SS_BATWARN)
  294. cscint |= I365_CSC_BVD2;
  295. }
  296. if (state->csc_mask & SS_READY)
  297. cscint |= I365_CSC_READY;
  298. if (state->csc_mask & SS_DETECT)
  299. cscint |= I365_CSC_DETECT;
  300. exca_write_byte(slot, I365_CSCINT, cscint);
  301. spin_unlock_irq(&socket->lock);
  302. return 0;
  303. }
  304. static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
  305. {
  306. unsigned int slot;
  307. uint8_t ioctl, addrwin;
  308. u_char map;
  309. if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
  310. io == NULL || io->map >= IO_MAX_MAPS ||
  311. io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
  312. return -EINVAL;
  313. slot = sock->sock;
  314. map = io->map;
  315. addrwin = exca_read_byte(slot, I365_ADDRWIN);
  316. if (addrwin & I365_ENA_IO(map)) {
  317. addrwin &= ~I365_ENA_IO(map);
  318. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  319. }
  320. exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
  321. exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
  322. ioctl = 0;
  323. if (io->speed > 0)
  324. ioctl |= I365_IOCTL_WAIT(map);
  325. if (io->flags & MAP_16BIT)
  326. ioctl |= I365_IOCTL_16BIT(map);
  327. if (io->flags & MAP_AUTOSZ)
  328. ioctl |= I365_IOCTL_IOCS16(map);
  329. if (io->flags & MAP_0WS)
  330. ioctl |= I365_IOCTL_0WS(map);
  331. exca_write_byte(slot, I365_IOCTL, ioctl);
  332. if (io->flags & MAP_ACTIVE) {
  333. addrwin |= I365_ENA_IO(map);
  334. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  335. }
  336. return 0;
  337. }
  338. static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
  339. {
  340. unsigned int slot;
  341. uint16_t start, stop, offset;
  342. uint8_t addrwin;
  343. u_char map;
  344. if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
  345. mem == NULL || mem->map >= MEM_MAX_MAPS ||
  346. mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
  347. mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
  348. mem->res->start > mem->res->end ||
  349. mem->card_start > CARD_MAX_MEM_OFFSET ||
  350. mem->speed > CARD_MAX_MEM_SPEED)
  351. return -EINVAL;
  352. slot = sock->sock;
  353. map = mem->map;
  354. addrwin = exca_read_byte(slot, I365_ADDRWIN);
  355. if (addrwin & I365_ENA_MEM(map)) {
  356. addrwin &= ~I365_ENA_MEM(map);
  357. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  358. }
  359. start = (mem->res->start >> 12) & 0x3fff;
  360. if (mem->flags & MAP_16BIT)
  361. start |= I365_MEM_16BIT;
  362. exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
  363. stop = (mem->res->end >> 12) & 0x3fff;
  364. switch (mem->speed) {
  365. case 0:
  366. break;
  367. case 1:
  368. stop |= I365_MEM_WS0;
  369. break;
  370. case 2:
  371. stop |= I365_MEM_WS1;
  372. break;
  373. default:
  374. stop |= I365_MEM_WS0 | I365_MEM_WS1;
  375. break;
  376. }
  377. exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
  378. offset = (mem->card_start >> 12) & 0x3fff;
  379. if (mem->flags & MAP_ATTRIB)
  380. offset |= I365_MEM_REG;
  381. if (mem->flags & MAP_WRPROT)
  382. offset |= I365_MEM_WRPROT;
  383. exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
  384. if (mem->flags & MAP_ACTIVE) {
  385. addrwin |= I365_ENA_MEM(map);
  386. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  387. }
  388. return 0;
  389. }
  390. static struct pccard_operations vrc4171_pccard_operations = {
  391. .init = pccard_init,
  392. .get_status = pccard_get_status,
  393. .set_socket = pccard_set_socket,
  394. .set_io_map = pccard_set_io_map,
  395. .set_mem_map = pccard_set_mem_map,
  396. };
  397. static inline unsigned int get_events(int slot)
  398. {
  399. unsigned int events = 0;
  400. uint8_t status, csc;
  401. status = exca_read_byte(slot, I365_STATUS);
  402. csc = exca_read_byte(slot, I365_CSC);
  403. if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
  404. if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
  405. events |= SS_STSCHG;
  406. } else {
  407. if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
  408. if (!(status & I365_CS_BVD1))
  409. events |= SS_BATDEAD;
  410. else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
  411. events |= SS_BATWARN;
  412. }
  413. }
  414. if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
  415. events |= SS_READY;
  416. if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
  417. events |= SS_DETECT;
  418. return events;
  419. }
  420. static irqreturn_t pccard_interrupt(int irq, void *dev_id)
  421. {
  422. struct vrc4171_socket *socket;
  423. unsigned int events;
  424. irqreturn_t retval = IRQ_NONE;
  425. uint16_t status;
  426. status = vrc4171_get_irq_status();
  427. if (status & IRQ_A) {
  428. socket = &vrc4171_sockets[CARD_SLOTA];
  429. if (socket->slot == SLOT_INITIALIZED) {
  430. if (status & (1 << socket->csc_irq)) {
  431. events = get_events(CARD_SLOTA);
  432. if (events != 0) {
  433. pcmcia_parse_events(&socket->pcmcia_socket, events);
  434. retval = IRQ_HANDLED;
  435. }
  436. }
  437. }
  438. }
  439. if (status & IRQ_B) {
  440. socket = &vrc4171_sockets[CARD_SLOTB];
  441. if (socket->slot == SLOT_INITIALIZED) {
  442. if (status & (1 << socket->csc_irq)) {
  443. events = get_events(CARD_SLOTB);
  444. if (events != 0) {
  445. pcmcia_parse_events(&socket->pcmcia_socket, events);
  446. retval = IRQ_HANDLED;
  447. }
  448. }
  449. }
  450. }
  451. return retval;
  452. }
  453. static inline void reserve_using_irq(int slot)
  454. {
  455. unsigned int irq;
  456. irq = exca_read_byte(slot, I365_INTCTL);
  457. irq &= 0x0f;
  458. vrc4171_irq_mask &= ~(1 << irq);
  459. irq = exca_read_byte(slot, I365_CSCINT);
  460. irq = (irq & 0xf0) >> 4;
  461. vrc4171_irq_mask &= ~(1 << irq);
  462. }
  463. static int vrc4171_add_sockets(void)
  464. {
  465. struct vrc4171_socket *socket;
  466. int slot, retval;
  467. for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
  468. if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
  469. continue;
  470. socket = &vrc4171_sockets[slot];
  471. if (socket->slot != SLOT_PROBE) {
  472. uint8_t addrwin;
  473. switch (socket->slot) {
  474. case SLOT_NOPROBE_MEM:
  475. addrwin = exca_read_byte(slot, I365_ADDRWIN);
  476. addrwin &= 0x1f;
  477. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  478. break;
  479. case SLOT_NOPROBE_IO:
  480. addrwin = exca_read_byte(slot, I365_ADDRWIN);
  481. addrwin &= 0xc0;
  482. exca_write_byte(slot, I365_ADDRWIN, addrwin);
  483. break;
  484. default:
  485. break;
  486. }
  487. reserve_using_irq(slot);
  488. continue;
  489. }
  490. sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
  491. socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
  492. socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
  493. socket->pcmcia_socket.owner = THIS_MODULE;
  494. retval = pcmcia_register_socket(&socket->pcmcia_socket);
  495. if (retval < 0)
  496. return retval;
  497. exca_write_byte(slot, I365_ADDRWIN, 0);
  498. exca_write_byte(slot, GLOBAL_CONTROL, 0);
  499. socket->slot = SLOT_INITIALIZED;
  500. }
  501. return 0;
  502. }
  503. static void vrc4171_remove_sockets(void)
  504. {
  505. struct vrc4171_socket *socket;
  506. int slot;
  507. for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
  508. if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
  509. continue;
  510. socket = &vrc4171_sockets[slot];
  511. if (socket->slot == SLOT_INITIALIZED)
  512. pcmcia_unregister_socket(&socket->pcmcia_socket);
  513. socket->slot = SLOT_PROBE;
  514. }
  515. }
  516. static int vrc4171_card_setup(char *options)
  517. {
  518. if (options == NULL || *options == '\0')
  519. return 1;
  520. if (strncmp(options, "irq:", 4) == 0) {
  521. int irq;
  522. options += 4;
  523. irq = simple_strtoul(options, &options, 0);
  524. if (irq >= 0 && irq < nr_irqs)
  525. vrc4171_irq = irq;
  526. if (*options != ',')
  527. return 1;
  528. options++;
  529. }
  530. if (strncmp(options, "slota:", 6) == 0) {
  531. options += 6;
  532. if (*options != '\0') {
  533. if (strncmp(options, "memnoprobe", 10) == 0) {
  534. vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
  535. options += 10;
  536. } else if (strncmp(options, "ionoprobe", 9) == 0) {
  537. vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
  538. options += 9;
  539. } else if ( strncmp(options, "noprobe", 7) == 0) {
  540. vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
  541. options += 7;
  542. }
  543. if (*options != ',')
  544. return 1;
  545. options++;
  546. } else
  547. return 1;
  548. }
  549. if (strncmp(options, "slotb:", 6) == 0) {
  550. options += 6;
  551. if (*options != '\0') {
  552. if (strncmp(options, "pccard", 6) == 0) {
  553. vrc4171_slotb = SLOTB_IS_PCCARD;
  554. options += 6;
  555. } else if (strncmp(options, "cf", 2) == 0) {
  556. vrc4171_slotb = SLOTB_IS_CF;
  557. options += 2;
  558. } else if (strncmp(options, "flashrom", 8) == 0) {
  559. vrc4171_slotb = SLOTB_IS_FLASHROM;
  560. options += 8;
  561. } else if (strncmp(options, "none", 4) == 0) {
  562. vrc4171_slotb = SLOTB_IS_NONE;
  563. options += 4;
  564. }
  565. if (*options != ',')
  566. return 1;
  567. options++;
  568. if (strncmp(options, "memnoprobe", 10) == 0)
  569. vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
  570. if (strncmp(options, "ionoprobe", 9) == 0)
  571. vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
  572. if (strncmp(options, "noprobe", 7) == 0)
  573. vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
  574. }
  575. }
  576. return 1;
  577. }
  578. __setup("vrc4171_card=", vrc4171_card_setup);
  579. static struct platform_driver vrc4171_card_driver = {
  580. .driver = {
  581. .name = vrc4171_card_name,
  582. },
  583. };
  584. static int vrc4171_card_init(void)
  585. {
  586. int retval;
  587. retval = platform_driver_register(&vrc4171_card_driver);
  588. if (retval < 0)
  589. return retval;
  590. retval = platform_device_register(&vrc4171_card_device);
  591. if (retval < 0) {
  592. platform_driver_unregister(&vrc4171_card_driver);
  593. return retval;
  594. }
  595. vrc4171_set_multifunction_pin(vrc4171_slotb);
  596. retval = vrc4171_add_sockets();
  597. if (retval == 0)
  598. retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
  599. vrc4171_card_name, vrc4171_sockets);
  600. if (retval < 0) {
  601. vrc4171_remove_sockets();
  602. platform_device_unregister(&vrc4171_card_device);
  603. platform_driver_unregister(&vrc4171_card_driver);
  604. return retval;
  605. }
  606. printk(KERN_INFO "%s, connected to IRQ %d\n",
  607. vrc4171_card_driver.driver.name, vrc4171_irq);
  608. return 0;
  609. }
  610. static void vrc4171_card_exit(void)
  611. {
  612. free_irq(vrc4171_irq, vrc4171_sockets);
  613. vrc4171_remove_sockets();
  614. platform_device_unregister(&vrc4171_card_device);
  615. platform_driver_unregister(&vrc4171_card_driver);
  616. }
  617. module_init(vrc4171_card_init);
  618. module_exit(vrc4171_card_exit);