yenta_socket.c 39 KB

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  1. /*
  2. * Regular cardbus driver ("yenta_socket")
  3. *
  4. * (C) Copyright 1999, 2000 Linus Torvalds
  5. *
  6. * Changelog:
  7. * Aug 2002: Manfred Spraul <manfred@colorfullife.com>
  8. * Dynamically adjust the size of the bridge resource
  9. *
  10. * May 2003: Dominik Brodowski <linux@brodo.de>
  11. * Merge pci_socket.c and yenta.c into one file
  12. */
  13. #include <linux/init.h>
  14. #include <linux/pci.h>
  15. #include <linux/workqueue.h>
  16. #include <linux/interrupt.h>
  17. #include <linux/delay.h>
  18. #include <linux/module.h>
  19. #include <pcmcia/cs_types.h>
  20. #include <pcmcia/ss.h>
  21. #include <pcmcia/cs.h>
  22. #include <asm/io.h>
  23. #include "yenta_socket.h"
  24. #include "i82365.h"
  25. static int disable_clkrun;
  26. module_param(disable_clkrun, bool, 0444);
  27. MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
  28. static int isa_probe = 1;
  29. module_param(isa_probe, bool, 0444);
  30. MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
  31. static int pwr_irqs_off;
  32. module_param(pwr_irqs_off, bool, 0644);
  33. MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
  34. #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
  35. /* Don't ask.. */
  36. #define to_cycles(ns) ((ns)/120)
  37. #define to_ns(cycles) ((cycles)*120)
  38. /*
  39. * yenta PCI irq probing.
  40. * currently only used in the TI/EnE initialization code
  41. */
  42. #ifdef CONFIG_YENTA_TI
  43. static int yenta_probe_cb_irq(struct yenta_socket *socket);
  44. #endif
  45. static unsigned int override_bios;
  46. module_param(override_bios, uint, 0000);
  47. MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation");
  48. /*
  49. * Generate easy-to-use ways of reading a cardbus sockets
  50. * regular memory space ("cb_xxx"), configuration space
  51. * ("config_xxx") and compatibility space ("exca_xxxx")
  52. */
  53. static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
  54. {
  55. u32 val = readl(socket->base + reg);
  56. debug("%04x %08x\n", socket, reg, val);
  57. return val;
  58. }
  59. static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
  60. {
  61. debug("%04x %08x\n", socket, reg, val);
  62. writel(val, socket->base + reg);
  63. readl(socket->base + reg); /* avoid problems with PCI write posting */
  64. }
  65. static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
  66. {
  67. u8 val;
  68. pci_read_config_byte(socket->dev, offset, &val);
  69. debug("%04x %02x\n", socket, offset, val);
  70. return val;
  71. }
  72. static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
  73. {
  74. u16 val;
  75. pci_read_config_word(socket->dev, offset, &val);
  76. debug("%04x %04x\n", socket, offset, val);
  77. return val;
  78. }
  79. static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
  80. {
  81. u32 val;
  82. pci_read_config_dword(socket->dev, offset, &val);
  83. debug("%04x %08x\n", socket, offset, val);
  84. return val;
  85. }
  86. static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
  87. {
  88. debug("%04x %02x\n", socket, offset, val);
  89. pci_write_config_byte(socket->dev, offset, val);
  90. }
  91. static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
  92. {
  93. debug("%04x %04x\n", socket, offset, val);
  94. pci_write_config_word(socket->dev, offset, val);
  95. }
  96. static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
  97. {
  98. debug("%04x %08x\n", socket, offset, val);
  99. pci_write_config_dword(socket->dev, offset, val);
  100. }
  101. static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
  102. {
  103. u8 val = readb(socket->base + 0x800 + reg);
  104. debug("%04x %02x\n", socket, reg, val);
  105. return val;
  106. }
  107. static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
  108. {
  109. u16 val;
  110. val = readb(socket->base + 0x800 + reg);
  111. val |= readb(socket->base + 0x800 + reg + 1) << 8;
  112. debug("%04x %04x\n", socket, reg, val);
  113. return val;
  114. }
  115. static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
  116. {
  117. debug("%04x %02x\n", socket, reg, val);
  118. writeb(val, socket->base + 0x800 + reg);
  119. readb(socket->base + 0x800 + reg); /* PCI write posting... */
  120. }
  121. static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
  122. {
  123. debug("%04x %04x\n", socket, reg, val);
  124. writeb(val, socket->base + 0x800 + reg);
  125. writeb(val >> 8, socket->base + 0x800 + reg + 1);
  126. /* PCI write posting... */
  127. readb(socket->base + 0x800 + reg);
  128. readb(socket->base + 0x800 + reg + 1);
  129. }
  130. static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf)
  131. {
  132. struct pci_dev *dev = to_pci_dev(yentadev);
  133. struct yenta_socket *socket = pci_get_drvdata(dev);
  134. int offset = 0, i;
  135. offset = snprintf(buf, PAGE_SIZE, "CB registers:");
  136. for (i = 0; i < 0x24; i += 4) {
  137. unsigned val;
  138. if (!(i & 15))
  139. offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
  140. val = cb_readl(socket, i);
  141. offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val);
  142. }
  143. offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:");
  144. for (i = 0; i < 0x45; i++) {
  145. unsigned char val;
  146. if (!(i & 7)) {
  147. if (i & 8) {
  148. memcpy(buf + offset, " -", 2);
  149. offset += 2;
  150. } else
  151. offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i);
  152. }
  153. val = exca_readb(socket, i);
  154. offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val);
  155. }
  156. buf[offset++] = '\n';
  157. return offset;
  158. }
  159. static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
  160. /*
  161. * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
  162. * on what kind of card is inserted..
  163. */
  164. static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
  165. {
  166. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  167. unsigned int val;
  168. u32 state = cb_readl(socket, CB_SOCKET_STATE);
  169. val = (state & CB_3VCARD) ? SS_3VCARD : 0;
  170. val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
  171. val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
  172. val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
  173. if (state & CB_CBCARD) {
  174. val |= SS_CARDBUS;
  175. val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
  176. val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
  177. val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
  178. } else if (state & CB_16BITCARD) {
  179. u8 status = exca_readb(socket, I365_STATUS);
  180. val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
  181. if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
  182. val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
  183. } else {
  184. val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
  185. val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
  186. }
  187. val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
  188. val |= (status & I365_CS_READY) ? SS_READY : 0;
  189. val |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
  190. }
  191. *value = val;
  192. return 0;
  193. }
  194. static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
  195. {
  196. /* some birdges require to use the ExCA registers to power 16bit cards */
  197. if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
  198. (socket->flags & YENTA_16BIT_POWER_EXCA)) {
  199. u8 reg, old;
  200. reg = old = exca_readb(socket, I365_POWER);
  201. reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK);
  202. /* i82365SL-DF style */
  203. if (socket->flags & YENTA_16BIT_POWER_DF) {
  204. switch (state->Vcc) {
  205. case 33: reg |= I365_VCC_3V; break;
  206. case 50: reg |= I365_VCC_5V; break;
  207. default: reg = 0; break;
  208. }
  209. switch (state->Vpp) {
  210. case 33:
  211. case 50: reg |= I365_VPP1_5V; break;
  212. case 120: reg |= I365_VPP1_12V; break;
  213. }
  214. } else {
  215. /* i82365SL-B style */
  216. switch (state->Vcc) {
  217. case 50: reg |= I365_VCC_5V; break;
  218. default: reg = 0; break;
  219. }
  220. switch (state->Vpp) {
  221. case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
  222. case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
  223. }
  224. }
  225. if (reg != old)
  226. exca_writeb(socket, I365_POWER, reg);
  227. } else {
  228. u32 reg = 0; /* CB_SC_STPCLK? */
  229. switch (state->Vcc) {
  230. case 33: reg = CB_SC_VCC_3V; break;
  231. case 50: reg = CB_SC_VCC_5V; break;
  232. default: reg = 0; break;
  233. }
  234. switch (state->Vpp) {
  235. case 33: reg |= CB_SC_VPP_3V; break;
  236. case 50: reg |= CB_SC_VPP_5V; break;
  237. case 120: reg |= CB_SC_VPP_12V; break;
  238. }
  239. if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
  240. cb_writel(socket, CB_SOCKET_CONTROL, reg);
  241. }
  242. }
  243. static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
  244. {
  245. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  246. u16 bridge;
  247. /* if powering down: do it immediately */
  248. if (state->Vcc == 0)
  249. yenta_set_power(socket, state);
  250. socket->io_irq = state->io_irq;
  251. bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
  252. if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
  253. u8 intr;
  254. bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
  255. /* ISA interrupt control? */
  256. intr = exca_readb(socket, I365_INTCTL);
  257. intr = (intr & ~0xf);
  258. if (!socket->cb_irq) {
  259. intr |= state->io_irq;
  260. bridge |= CB_BRIDGE_INTR;
  261. }
  262. exca_writeb(socket, I365_INTCTL, intr);
  263. } else {
  264. u8 reg;
  265. reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
  266. reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
  267. reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
  268. if (state->io_irq != socket->cb_irq) {
  269. reg |= state->io_irq;
  270. bridge |= CB_BRIDGE_INTR;
  271. }
  272. exca_writeb(socket, I365_INTCTL, reg);
  273. reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
  274. reg |= I365_PWR_NORESET;
  275. if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
  276. if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
  277. if (exca_readb(socket, I365_POWER) != reg)
  278. exca_writeb(socket, I365_POWER, reg);
  279. /* CSC interrupt: no ISA irq for CSC */
  280. reg = I365_CSC_DETECT;
  281. if (state->flags & SS_IOCARD) {
  282. if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
  283. } else {
  284. if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
  285. if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
  286. if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
  287. }
  288. exca_writeb(socket, I365_CSCINT, reg);
  289. exca_readb(socket, I365_CSC);
  290. if(sock->zoom_video)
  291. sock->zoom_video(sock, state->flags & SS_ZVCARD);
  292. }
  293. config_writew(socket, CB_BRIDGE_CONTROL, bridge);
  294. /* Socket event mask: get card insert/remove events.. */
  295. cb_writel(socket, CB_SOCKET_EVENT, -1);
  296. cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
  297. /* if powering up: do it as the last step when the socket is configured */
  298. if (state->Vcc != 0)
  299. yenta_set_power(socket, state);
  300. return 0;
  301. }
  302. static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
  303. {
  304. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  305. int map;
  306. unsigned char ioctl, addr, enable;
  307. map = io->map;
  308. if (map > 1)
  309. return -EINVAL;
  310. enable = I365_ENA_IO(map);
  311. addr = exca_readb(socket, I365_ADDRWIN);
  312. /* Disable the window before changing it.. */
  313. if (addr & enable) {
  314. addr &= ~enable;
  315. exca_writeb(socket, I365_ADDRWIN, addr);
  316. }
  317. exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
  318. exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
  319. ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
  320. if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
  321. if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
  322. if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
  323. exca_writeb(socket, I365_IOCTL, ioctl);
  324. if (io->flags & MAP_ACTIVE)
  325. exca_writeb(socket, I365_ADDRWIN, addr | enable);
  326. return 0;
  327. }
  328. static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
  329. {
  330. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  331. struct pci_bus_region region;
  332. int map;
  333. unsigned char addr, enable;
  334. unsigned int start, stop, card_start;
  335. unsigned short word;
  336. pcibios_resource_to_bus(socket->dev, &region, mem->res);
  337. map = mem->map;
  338. start = region.start;
  339. stop = region.end;
  340. card_start = mem->card_start;
  341. if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
  342. (card_start >> 26) || mem->speed > 1000)
  343. return -EINVAL;
  344. enable = I365_ENA_MEM(map);
  345. addr = exca_readb(socket, I365_ADDRWIN);
  346. if (addr & enable) {
  347. addr &= ~enable;
  348. exca_writeb(socket, I365_ADDRWIN, addr);
  349. }
  350. exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
  351. word = (start >> 12) & 0x0fff;
  352. if (mem->flags & MAP_16BIT)
  353. word |= I365_MEM_16BIT;
  354. if (mem->flags & MAP_0WS)
  355. word |= I365_MEM_0WS;
  356. exca_writew(socket, I365_MEM(map) + I365_W_START, word);
  357. word = (stop >> 12) & 0x0fff;
  358. switch (to_cycles(mem->speed)) {
  359. case 0: break;
  360. case 1: word |= I365_MEM_WS0; break;
  361. case 2: word |= I365_MEM_WS1; break;
  362. default: word |= I365_MEM_WS1 | I365_MEM_WS0; break;
  363. }
  364. exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
  365. word = ((card_start - start) >> 12) & 0x3fff;
  366. if (mem->flags & MAP_WRPROT)
  367. word |= I365_MEM_WRPROT;
  368. if (mem->flags & MAP_ATTRIB)
  369. word |= I365_MEM_REG;
  370. exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
  371. if (mem->flags & MAP_ACTIVE)
  372. exca_writeb(socket, I365_ADDRWIN, addr | enable);
  373. return 0;
  374. }
  375. static irqreturn_t yenta_interrupt(int irq, void *dev_id)
  376. {
  377. unsigned int events;
  378. struct yenta_socket *socket = (struct yenta_socket *) dev_id;
  379. u8 csc;
  380. u32 cb_event;
  381. /* Clear interrupt status for the event */
  382. cb_event = cb_readl(socket, CB_SOCKET_EVENT);
  383. cb_writel(socket, CB_SOCKET_EVENT, cb_event);
  384. csc = exca_readb(socket, I365_CSC);
  385. if (!(cb_event || csc))
  386. return IRQ_NONE;
  387. events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
  388. events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
  389. if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
  390. events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
  391. } else {
  392. events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
  393. events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
  394. events |= (csc & I365_CSC_READY) ? SS_READY : 0;
  395. }
  396. if (events)
  397. pcmcia_parse_events(&socket->socket, events);
  398. return IRQ_HANDLED;
  399. }
  400. static void yenta_interrupt_wrapper(unsigned long data)
  401. {
  402. struct yenta_socket *socket = (struct yenta_socket *) data;
  403. yenta_interrupt(0, (void *)socket);
  404. socket->poll_timer.expires = jiffies + HZ;
  405. add_timer(&socket->poll_timer);
  406. }
  407. static void yenta_clear_maps(struct yenta_socket *socket)
  408. {
  409. int i;
  410. struct resource res = { .start = 0, .end = 0x0fff };
  411. pccard_io_map io = { 0, 0, 0, 0, 1 };
  412. pccard_mem_map mem = { .res = &res, };
  413. yenta_set_socket(&socket->socket, &dead_socket);
  414. for (i = 0; i < 2; i++) {
  415. io.map = i;
  416. yenta_set_io_map(&socket->socket, &io);
  417. }
  418. for (i = 0; i < 5; i++) {
  419. mem.map = i;
  420. yenta_set_mem_map(&socket->socket, &mem);
  421. }
  422. }
  423. /* redoes voltage interrogation if required */
  424. static void yenta_interrogate(struct yenta_socket *socket)
  425. {
  426. u32 state;
  427. state = cb_readl(socket, CB_SOCKET_STATE);
  428. if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
  429. (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
  430. ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
  431. cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
  432. }
  433. /* Called at resume and initialization events */
  434. static int yenta_sock_init(struct pcmcia_socket *sock)
  435. {
  436. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  437. exca_writeb(socket, I365_GBLCTL, 0x00);
  438. exca_writeb(socket, I365_GENCTL, 0x00);
  439. /* Redo card voltage interrogation */
  440. yenta_interrogate(socket);
  441. yenta_clear_maps(socket);
  442. if (socket->type && socket->type->sock_init)
  443. socket->type->sock_init(socket);
  444. /* Re-enable CSC interrupts */
  445. cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
  446. return 0;
  447. }
  448. static int yenta_sock_suspend(struct pcmcia_socket *sock)
  449. {
  450. struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  451. /* Disable CSC interrupts */
  452. cb_writel(socket, CB_SOCKET_MASK, 0x0);
  453. return 0;
  454. }
  455. /*
  456. * Use an adaptive allocation for the memory resource,
  457. * sometimes the memory behind pci bridges is limited:
  458. * 1/8 of the size of the io window of the parent.
  459. * max 4 MB, min 16 kB. We try very hard to not get below
  460. * the "ACC" values, though.
  461. */
  462. #define BRIDGE_MEM_MAX 4*1024*1024
  463. #define BRIDGE_MEM_ACC 128*1024
  464. #define BRIDGE_MEM_MIN 16*1024
  465. #define BRIDGE_IO_MAX 512
  466. #define BRIDGE_IO_ACC 256
  467. #define BRIDGE_IO_MIN 32
  468. #ifndef PCIBIOS_MIN_CARDBUS_IO
  469. #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
  470. #endif
  471. static int yenta_search_one_res(struct resource *root, struct resource *res,
  472. u32 min)
  473. {
  474. u32 align, size, start, end;
  475. if (res->flags & IORESOURCE_IO) {
  476. align = 1024;
  477. size = BRIDGE_IO_MAX;
  478. start = PCIBIOS_MIN_CARDBUS_IO;
  479. end = ~0U;
  480. } else {
  481. unsigned long avail = root->end - root->start;
  482. int i;
  483. size = BRIDGE_MEM_MAX;
  484. if (size > avail/8) {
  485. size=(avail+1)/8;
  486. /* round size down to next power of 2 */
  487. i = 0;
  488. while ((size /= 2) != 0)
  489. i++;
  490. size = 1 << i;
  491. }
  492. if (size < min)
  493. size = min;
  494. align = size;
  495. start = PCIBIOS_MIN_MEM;
  496. end = ~0U;
  497. }
  498. do {
  499. if (allocate_resource(root, res, size, start, end, align,
  500. NULL, NULL)==0) {
  501. return 1;
  502. }
  503. size = size/2;
  504. align = size;
  505. } while (size >= min);
  506. return 0;
  507. }
  508. static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
  509. u32 min)
  510. {
  511. int i;
  512. for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
  513. struct resource * root = socket->dev->bus->resource[i];
  514. if (!root)
  515. continue;
  516. if ((res->flags ^ root->flags) &
  517. (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
  518. continue; /* Wrong type */
  519. if (yenta_search_one_res(root, res, min))
  520. return 1;
  521. }
  522. return 0;
  523. }
  524. static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
  525. {
  526. struct resource *root, *res;
  527. struct pci_bus_region region;
  528. unsigned mask;
  529. res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
  530. /* Already allocated? */
  531. if (res->parent)
  532. return 0;
  533. /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
  534. mask = ~0xfff;
  535. if (type & IORESOURCE_IO)
  536. mask = ~3;
  537. res->name = socket->dev->subordinate->name;
  538. res->flags = type;
  539. region.start = config_readl(socket, addr_start) & mask;
  540. region.end = config_readl(socket, addr_end) | ~mask;
  541. if (region.start && region.end > region.start && !override_bios) {
  542. pcibios_bus_to_resource(socket->dev, res, &region);
  543. root = pci_find_parent_resource(socket->dev, res);
  544. if (root && (request_resource(root, res) == 0))
  545. return 0;
  546. dev_printk(KERN_INFO, &socket->dev->dev,
  547. "Preassigned resource %d busy or not available, "
  548. "reconfiguring...\n",
  549. nr);
  550. }
  551. if (type & IORESOURCE_IO) {
  552. if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
  553. (yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
  554. (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
  555. return 1;
  556. } else {
  557. if (type & IORESOURCE_PREFETCH) {
  558. if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
  559. (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
  560. (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
  561. return 1;
  562. /* Approximating prefetchable by non-prefetchable */
  563. res->flags = IORESOURCE_MEM;
  564. }
  565. if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
  566. (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
  567. (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
  568. return 1;
  569. }
  570. dev_printk(KERN_INFO, &socket->dev->dev,
  571. "no resource of type %x available, trying to continue...\n",
  572. type);
  573. res->start = res->end = res->flags = 0;
  574. return 0;
  575. }
  576. /*
  577. * Allocate the bridge mappings for the device..
  578. */
  579. static void yenta_allocate_resources(struct yenta_socket *socket)
  580. {
  581. int program = 0;
  582. program += yenta_allocate_res(socket, 0, IORESOURCE_IO,
  583. PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
  584. program += yenta_allocate_res(socket, 1, IORESOURCE_IO,
  585. PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
  586. program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
  587. PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
  588. program += yenta_allocate_res(socket, 3, IORESOURCE_MEM,
  589. PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
  590. if (program)
  591. pci_setup_cardbus(socket->dev->subordinate);
  592. }
  593. /*
  594. * Free the bridge mappings for the device..
  595. */
  596. static void yenta_free_resources(struct yenta_socket *socket)
  597. {
  598. int i;
  599. for (i=0;i<4;i++) {
  600. struct resource *res;
  601. res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
  602. if (res->start != 0 && res->end != 0)
  603. release_resource(res);
  604. res->start = res->end = res->flags = 0;
  605. }
  606. }
  607. /*
  608. * Close it down - release our resources and go home..
  609. */
  610. static void yenta_close(struct pci_dev *dev)
  611. {
  612. struct yenta_socket *sock = pci_get_drvdata(dev);
  613. /* Remove the register attributes */
  614. device_remove_file(&dev->dev, &dev_attr_yenta_registers);
  615. /* we don't want a dying socket registered */
  616. pcmcia_unregister_socket(&sock->socket);
  617. /* Disable all events so we don't die in an IRQ storm */
  618. cb_writel(sock, CB_SOCKET_MASK, 0x0);
  619. exca_writeb(sock, I365_CSCINT, 0);
  620. if (sock->cb_irq)
  621. free_irq(sock->cb_irq, sock);
  622. else
  623. del_timer_sync(&sock->poll_timer);
  624. if (sock->base)
  625. iounmap(sock->base);
  626. yenta_free_resources(sock);
  627. pci_release_regions(dev);
  628. pci_disable_device(dev);
  629. pci_set_drvdata(dev, NULL);
  630. }
  631. static struct pccard_operations yenta_socket_operations = {
  632. .init = yenta_sock_init,
  633. .suspend = yenta_sock_suspend,
  634. .get_status = yenta_get_status,
  635. .set_socket = yenta_set_socket,
  636. .set_io_map = yenta_set_io_map,
  637. .set_mem_map = yenta_set_mem_map,
  638. };
  639. #ifdef CONFIG_YENTA_TI
  640. #include "ti113x.h"
  641. #endif
  642. #ifdef CONFIG_YENTA_RICOH
  643. #include "ricoh.h"
  644. #endif
  645. #ifdef CONFIG_YENTA_TOSHIBA
  646. #include "topic.h"
  647. #endif
  648. #ifdef CONFIG_YENTA_O2
  649. #include "o2micro.h"
  650. #endif
  651. enum {
  652. CARDBUS_TYPE_DEFAULT = -1,
  653. CARDBUS_TYPE_TI,
  654. CARDBUS_TYPE_TI113X,
  655. CARDBUS_TYPE_TI12XX,
  656. CARDBUS_TYPE_TI1250,
  657. CARDBUS_TYPE_RICOH,
  658. CARDBUS_TYPE_TOPIC95,
  659. CARDBUS_TYPE_TOPIC97,
  660. CARDBUS_TYPE_O2MICRO,
  661. CARDBUS_TYPE_ENE,
  662. };
  663. /*
  664. * Different cardbus controllers have slightly different
  665. * initialization sequences etc details. List them here..
  666. */
  667. static struct cardbus_type cardbus_type[] = {
  668. #ifdef CONFIG_YENTA_TI
  669. [CARDBUS_TYPE_TI] = {
  670. .override = ti_override,
  671. .save_state = ti_save_state,
  672. .restore_state = ti_restore_state,
  673. .sock_init = ti_init,
  674. },
  675. [CARDBUS_TYPE_TI113X] = {
  676. .override = ti113x_override,
  677. .save_state = ti_save_state,
  678. .restore_state = ti_restore_state,
  679. .sock_init = ti_init,
  680. },
  681. [CARDBUS_TYPE_TI12XX] = {
  682. .override = ti12xx_override,
  683. .save_state = ti_save_state,
  684. .restore_state = ti_restore_state,
  685. .sock_init = ti_init,
  686. },
  687. [CARDBUS_TYPE_TI1250] = {
  688. .override = ti1250_override,
  689. .save_state = ti_save_state,
  690. .restore_state = ti_restore_state,
  691. .sock_init = ti_init,
  692. },
  693. #endif
  694. #ifdef CONFIG_YENTA_RICOH
  695. [CARDBUS_TYPE_RICOH] = {
  696. .override = ricoh_override,
  697. .save_state = ricoh_save_state,
  698. .restore_state = ricoh_restore_state,
  699. },
  700. #endif
  701. #ifdef CONFIG_YENTA_TOSHIBA
  702. [CARDBUS_TYPE_TOPIC95] = {
  703. .override = topic95_override,
  704. },
  705. [CARDBUS_TYPE_TOPIC97] = {
  706. .override = topic97_override,
  707. },
  708. #endif
  709. #ifdef CONFIG_YENTA_O2
  710. [CARDBUS_TYPE_O2MICRO] = {
  711. .override = o2micro_override,
  712. .restore_state = o2micro_restore_state,
  713. },
  714. #endif
  715. #ifdef CONFIG_YENTA_TI
  716. [CARDBUS_TYPE_ENE] = {
  717. .override = ene_override,
  718. .save_state = ti_save_state,
  719. .restore_state = ti_restore_state,
  720. .sock_init = ti_init,
  721. },
  722. #endif
  723. };
  724. /*
  725. * Only probe "regular" interrupts, don't
  726. * touch dangerous spots like the mouse irq,
  727. * because there are mice that apparently
  728. * get really confused if they get fondled
  729. * too intimately.
  730. *
  731. * Default to 11, 10, 9, 7, 6, 5, 4, 3.
  732. */
  733. static u32 isa_interrupts = 0x0ef8;
  734. static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
  735. {
  736. int i;
  737. unsigned long val;
  738. u32 mask;
  739. /*
  740. * Probe for usable interrupts using the force
  741. * register to generate bogus card status events.
  742. */
  743. cb_writel(socket, CB_SOCKET_EVENT, -1);
  744. cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
  745. exca_writeb(socket, I365_CSCINT, 0);
  746. val = probe_irq_on() & isa_irq_mask;
  747. for (i = 1; i < 16; i++) {
  748. if (!((val >> i) & 1))
  749. continue;
  750. exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
  751. cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
  752. udelay(100);
  753. cb_writel(socket, CB_SOCKET_EVENT, -1);
  754. }
  755. cb_writel(socket, CB_SOCKET_MASK, 0);
  756. exca_writeb(socket, I365_CSCINT, 0);
  757. mask = probe_irq_mask(val) & 0xffff;
  758. return mask;
  759. }
  760. /*
  761. * yenta PCI irq probing.
  762. * currently only used in the TI/EnE initialization code
  763. */
  764. #ifdef CONFIG_YENTA_TI
  765. /* interrupt handler, only used during probing */
  766. static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
  767. {
  768. struct yenta_socket *socket = (struct yenta_socket *) dev_id;
  769. u8 csc;
  770. u32 cb_event;
  771. /* Clear interrupt status for the event */
  772. cb_event = cb_readl(socket, CB_SOCKET_EVENT);
  773. cb_writel(socket, CB_SOCKET_EVENT, -1);
  774. csc = exca_readb(socket, I365_CSC);
  775. if (cb_event || csc) {
  776. socket->probe_status = 1;
  777. return IRQ_HANDLED;
  778. }
  779. return IRQ_NONE;
  780. }
  781. /* probes the PCI interrupt, use only on override functions */
  782. static int yenta_probe_cb_irq(struct yenta_socket *socket)
  783. {
  784. if (!socket->cb_irq)
  785. return -1;
  786. socket->probe_status = 0;
  787. if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
  788. dev_printk(KERN_WARNING, &socket->dev->dev,
  789. "request_irq() in yenta_probe_cb_irq() failed!\n");
  790. return -1;
  791. }
  792. /* generate interrupt, wait */
  793. exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG);
  794. cb_writel(socket, CB_SOCKET_EVENT, -1);
  795. cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
  796. cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
  797. msleep(100);
  798. /* disable interrupts */
  799. cb_writel(socket, CB_SOCKET_MASK, 0);
  800. exca_writeb(socket, I365_CSCINT, 0);
  801. cb_writel(socket, CB_SOCKET_EVENT, -1);
  802. exca_readb(socket, I365_CSC);
  803. free_irq(socket->cb_irq, socket);
  804. return (int) socket->probe_status;
  805. }
  806. #endif /* CONFIG_YENTA_TI */
  807. /*
  808. * Set static data that doesn't need re-initializing..
  809. */
  810. static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
  811. {
  812. socket->socket.pci_irq = socket->cb_irq;
  813. if (isa_probe)
  814. socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
  815. else
  816. socket->socket.irq_mask = 0;
  817. dev_printk(KERN_INFO, &socket->dev->dev,
  818. "ISA IRQ mask 0x%04x, PCI irq %d\n",
  819. socket->socket.irq_mask, socket->cb_irq);
  820. }
  821. /*
  822. * Initialize the standard cardbus registers
  823. */
  824. static void yenta_config_init(struct yenta_socket *socket)
  825. {
  826. u16 bridge;
  827. struct pci_dev *dev = socket->dev;
  828. struct pci_bus_region region;
  829. pcibios_resource_to_bus(socket->dev, &region, &dev->resource[0]);
  830. config_writel(socket, CB_LEGACY_MODE_BASE, 0);
  831. config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
  832. config_writew(socket, PCI_COMMAND,
  833. PCI_COMMAND_IO |
  834. PCI_COMMAND_MEMORY |
  835. PCI_COMMAND_MASTER |
  836. PCI_COMMAND_WAIT);
  837. /* MAGIC NUMBERS! Fixme */
  838. config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4);
  839. config_writeb(socket, PCI_LATENCY_TIMER, 168);
  840. config_writel(socket, PCI_PRIMARY_BUS,
  841. (176 << 24) | /* sec. latency timer */
  842. (dev->subordinate->subordinate << 16) | /* subordinate bus */
  843. (dev->subordinate->secondary << 8) | /* secondary bus */
  844. dev->subordinate->primary); /* primary bus */
  845. /*
  846. * Set up the bridging state:
  847. * - enable write posting.
  848. * - memory window 0 prefetchable, window 1 non-prefetchable
  849. * - PCI interrupts enabled if a PCI interrupt exists..
  850. */
  851. bridge = config_readw(socket, CB_BRIDGE_CONTROL);
  852. bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
  853. bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
  854. config_writew(socket, CB_BRIDGE_CONTROL, bridge);
  855. }
  856. /**
  857. * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
  858. * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
  859. *
  860. * Checks if devices on the bus which the CardBus bridge bridges to would be
  861. * invisible during PCI scans because of a misconfigured subordinate number
  862. * of the parent brige - some BIOSes seem to be too lazy to set it right.
  863. * Does the fixup carefully by checking how far it can go without conflicts.
  864. * See http\://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
  865. */
  866. static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
  867. {
  868. struct list_head *tmp;
  869. unsigned char upper_limit;
  870. /*
  871. * We only check and fix the parent bridge: All systems which need
  872. * this fixup that have been reviewed are laptops and the only bridge
  873. * which needed fixing was the parent bridge of the CardBus bridge:
  874. */
  875. struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
  876. /* Check bus numbers are already set up correctly: */
  877. if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate)
  878. return; /* The subordinate number is ok, nothing to do */
  879. if (!bridge_to_fix->parent)
  880. return; /* Root bridges are ok */
  881. /* stay within the limits of the bus range of the parent: */
  882. upper_limit = bridge_to_fix->parent->subordinate;
  883. /* check the bus ranges of all silbling bridges to prevent overlap */
  884. list_for_each(tmp, &bridge_to_fix->parent->children) {
  885. struct pci_bus * silbling = pci_bus_b(tmp);
  886. /*
  887. * If the silbling has a higher secondary bus number
  888. * and it's secondary is equal or smaller than our
  889. * current upper limit, set the new upper limit to
  890. * the bus number below the silbling's range:
  891. */
  892. if (silbling->secondary > bridge_to_fix->subordinate
  893. && silbling->secondary <= upper_limit)
  894. upper_limit = silbling->secondary - 1;
  895. }
  896. /* Show that the wanted subordinate number is not possible: */
  897. if (cardbus_bridge->subordinate > upper_limit)
  898. dev_printk(KERN_WARNING, &cardbus_bridge->dev,
  899. "Upper limit for fixing this "
  900. "bridge's parent bridge: #%02x\n", upper_limit);
  901. /* If we have room to increase the bridge's subordinate number, */
  902. if (bridge_to_fix->subordinate < upper_limit) {
  903. /* use the highest number of the hidden bus, within limits */
  904. unsigned char subordinate_to_assign =
  905. min(cardbus_bridge->subordinate, upper_limit);
  906. dev_printk(KERN_INFO, &bridge_to_fix->dev,
  907. "Raising subordinate bus# of parent "
  908. "bus (#%02x) from #%02x to #%02x\n",
  909. bridge_to_fix->number,
  910. bridge_to_fix->subordinate, subordinate_to_assign);
  911. /* Save the new subordinate in the bus struct of the bridge */
  912. bridge_to_fix->subordinate = subordinate_to_assign;
  913. /* and update the PCI config space with the new subordinate */
  914. pci_write_config_byte(bridge_to_fix->self,
  915. PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
  916. }
  917. }
  918. /*
  919. * Initialize a cardbus controller. Make sure we have a usable
  920. * interrupt, and that we can map the cardbus area. Fill in the
  921. * socket information structure..
  922. */
  923. static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id)
  924. {
  925. struct yenta_socket *socket;
  926. int ret;
  927. /*
  928. * If we failed to assign proper bus numbers for this cardbus
  929. * controller during PCI probe, its subordinate pci_bus is NULL.
  930. * Bail out if so.
  931. */
  932. if (!dev->subordinate) {
  933. dev_printk(KERN_ERR, &dev->dev, "no bus associated! "
  934. "(try 'pci=assign-busses')\n");
  935. return -ENODEV;
  936. }
  937. socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
  938. if (!socket)
  939. return -ENOMEM;
  940. /* prepare pcmcia_socket */
  941. socket->socket.ops = &yenta_socket_operations;
  942. socket->socket.resource_ops = &pccard_nonstatic_ops;
  943. socket->socket.dev.parent = &dev->dev;
  944. socket->socket.driver_data = socket;
  945. socket->socket.owner = THIS_MODULE;
  946. socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
  947. socket->socket.map_size = 0x1000;
  948. socket->socket.cb_dev = dev;
  949. /* prepare struct yenta_socket */
  950. socket->dev = dev;
  951. pci_set_drvdata(dev, socket);
  952. /*
  953. * Do some basic sanity checking..
  954. */
  955. if (pci_enable_device(dev)) {
  956. ret = -EBUSY;
  957. goto free;
  958. }
  959. ret = pci_request_regions(dev, "yenta_socket");
  960. if (ret)
  961. goto disable;
  962. if (!pci_resource_start(dev, 0)) {
  963. dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n");
  964. ret = -ENODEV;
  965. goto release;
  966. }
  967. /*
  968. * Ok, start setup.. Map the cardbus registers,
  969. * and request the IRQ.
  970. */
  971. socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
  972. if (!socket->base) {
  973. ret = -ENOMEM;
  974. goto release;
  975. }
  976. /*
  977. * report the subsystem vendor and device for help debugging
  978. * the irq stuff...
  979. */
  980. dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n",
  981. dev->subsystem_vendor, dev->subsystem_device);
  982. yenta_config_init(socket);
  983. /* Disable all events */
  984. cb_writel(socket, CB_SOCKET_MASK, 0x0);
  985. /* Set up the bridge regions.. */
  986. yenta_allocate_resources(socket);
  987. socket->cb_irq = dev->irq;
  988. /* Do we have special options for the device? */
  989. if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
  990. id->driver_data < ARRAY_SIZE(cardbus_type)) {
  991. socket->type = &cardbus_type[id->driver_data];
  992. ret = socket->type->override(socket);
  993. if (ret < 0)
  994. goto unmap;
  995. }
  996. /* We must finish initialization here */
  997. if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
  998. /* No IRQ or request_irq failed. Poll */
  999. socket->cb_irq = 0; /* But zero is a valid IRQ number. */
  1000. init_timer(&socket->poll_timer);
  1001. socket->poll_timer.function = yenta_interrupt_wrapper;
  1002. socket->poll_timer.data = (unsigned long)socket;
  1003. socket->poll_timer.expires = jiffies + HZ;
  1004. add_timer(&socket->poll_timer);
  1005. dev_printk(KERN_INFO, &dev->dev,
  1006. "no PCI IRQ, CardBus support disabled for this "
  1007. "socket.\n");
  1008. dev_printk(KERN_INFO, &dev->dev,
  1009. "check your BIOS CardBus, BIOS IRQ or ACPI "
  1010. "settings.\n");
  1011. } else {
  1012. socket->socket.features |= SS_CAP_CARDBUS;
  1013. }
  1014. /* Figure out what the dang thing can do for the PCMCIA layer... */
  1015. yenta_interrogate(socket);
  1016. yenta_get_socket_capabilities(socket, isa_interrupts);
  1017. dev_printk(KERN_INFO, &dev->dev,
  1018. "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
  1019. yenta_fixup_parent_bridge(dev->subordinate);
  1020. /* Register it with the pcmcia layer.. */
  1021. ret = pcmcia_register_socket(&socket->socket);
  1022. if (ret == 0) {
  1023. /* Add the yenta register attributes */
  1024. ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
  1025. if (ret == 0)
  1026. goto out;
  1027. /* error path... */
  1028. pcmcia_unregister_socket(&socket->socket);
  1029. }
  1030. unmap:
  1031. iounmap(socket->base);
  1032. release:
  1033. pci_release_regions(dev);
  1034. disable:
  1035. pci_disable_device(dev);
  1036. free:
  1037. kfree(socket);
  1038. out:
  1039. return ret;
  1040. }
  1041. #ifdef CONFIG_PM
  1042. static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
  1043. {
  1044. struct yenta_socket *socket = pci_get_drvdata(dev);
  1045. int ret;
  1046. ret = pcmcia_socket_dev_suspend(&dev->dev, state);
  1047. if (socket) {
  1048. if (socket->type && socket->type->save_state)
  1049. socket->type->save_state(socket);
  1050. /* FIXME: pci_save_state needs to have a better interface */
  1051. pci_save_state(dev);
  1052. pci_read_config_dword(dev, 16*4, &socket->saved_state[0]);
  1053. pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
  1054. pci_disable_device(dev);
  1055. /*
  1056. * Some laptops (IBM T22) do not like us putting the Cardbus
  1057. * bridge into D3. At a guess, some other laptop will
  1058. * probably require this, so leave it commented out for now.
  1059. */
  1060. /* pci_set_power_state(dev, 3); */
  1061. }
  1062. return ret;
  1063. }
  1064. static int yenta_dev_resume (struct pci_dev *dev)
  1065. {
  1066. struct yenta_socket *socket = pci_get_drvdata(dev);
  1067. if (socket) {
  1068. int rc;
  1069. pci_set_power_state(dev, 0);
  1070. /* FIXME: pci_restore_state needs to have a better interface */
  1071. pci_restore_state(dev);
  1072. pci_write_config_dword(dev, 16*4, socket->saved_state[0]);
  1073. pci_write_config_dword(dev, 17*4, socket->saved_state[1]);
  1074. rc = pci_enable_device(dev);
  1075. if (rc)
  1076. return rc;
  1077. pci_set_master(dev);
  1078. if (socket->type && socket->type->restore_state)
  1079. socket->type->restore_state(socket);
  1080. }
  1081. return pcmcia_socket_dev_resume(&dev->dev);
  1082. }
  1083. #endif
  1084. #define CB_ID(vend,dev,type) \
  1085. { \
  1086. .vendor = vend, \
  1087. .device = dev, \
  1088. .subvendor = PCI_ANY_ID, \
  1089. .subdevice = PCI_ANY_ID, \
  1090. .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \
  1091. .class_mask = ~0, \
  1092. .driver_data = CARDBUS_TYPE_##type, \
  1093. }
  1094. static struct pci_device_id yenta_table [] = {
  1095. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
  1096. /*
  1097. * TBD: Check if these TI variants can use more
  1098. * advanced overrides instead. (I can't get the
  1099. * data sheets for these devices. --rmk)
  1100. */
  1101. #ifdef CONFIG_YENTA_TI
  1102. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
  1103. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
  1104. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
  1105. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
  1106. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
  1107. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
  1108. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
  1109. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
  1110. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
  1111. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
  1112. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
  1113. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
  1114. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
  1115. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
  1116. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
  1117. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
  1118. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
  1119. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
  1120. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
  1121. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
  1122. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
  1123. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
  1124. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
  1125. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
  1126. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
  1127. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
  1128. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
  1129. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
  1130. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
  1131. CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
  1132. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX),
  1133. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX),
  1134. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX),
  1135. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX),
  1136. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
  1137. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
  1138. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
  1139. CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
  1140. #endif /* CONFIG_YENTA_TI */
  1141. #ifdef CONFIG_YENTA_RICOH
  1142. CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
  1143. CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
  1144. CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
  1145. CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
  1146. CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
  1147. #endif
  1148. #ifdef CONFIG_YENTA_TOSHIBA
  1149. CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
  1150. CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
  1151. CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
  1152. #endif
  1153. #ifdef CONFIG_YENTA_O2
  1154. CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
  1155. #endif
  1156. /* match any cardbus bridge */
  1157. CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
  1158. { /* all zeroes */ }
  1159. };
  1160. MODULE_DEVICE_TABLE(pci, yenta_table);
  1161. static struct pci_driver yenta_cardbus_driver = {
  1162. .name = "yenta_cardbus",
  1163. .id_table = yenta_table,
  1164. .probe = yenta_probe,
  1165. .remove = __devexit_p(yenta_close),
  1166. #ifdef CONFIG_PM
  1167. .suspend = yenta_dev_suspend,
  1168. .resume = yenta_dev_resume,
  1169. #endif
  1170. };
  1171. static int __init yenta_socket_init(void)
  1172. {
  1173. return pci_register_driver (&yenta_cardbus_driver);
  1174. }
  1175. static void __exit yenta_socket_exit (void)
  1176. {
  1177. pci_unregister_driver (&yenta_cardbus_driver);
  1178. }
  1179. module_init(yenta_socket_init);
  1180. module_exit(yenta_socket_exit);
  1181. MODULE_LICENSE("GPL");