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1da177e4 LT |
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/sched.h> | |
16 | #include <linux/workqueue.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/module.h> | |
20 | ||
1da177e4 LT |
21 | #include <pcmcia/cs_types.h> |
22 | #include <pcmcia/ss.h> | |
23 | #include <pcmcia/cs.h> | |
24 | ||
25 | #include <asm/io.h> | |
26 | ||
27 | #include "yenta_socket.h" | |
28 | #include "i82365.h" | |
29 | ||
30 | static int disable_clkrun; | |
31 | module_param(disable_clkrun, bool, 0444); | |
32 | MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option"); | |
33 | ||
fa912bcb DR |
34 | static int isa_probe = 1; |
35 | module_param(isa_probe, bool, 0444); | |
36 | MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); | |
37 | ||
38 | static int pwr_irqs_off; | |
39 | module_param(pwr_irqs_off, bool, 0644); | |
40 | MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); | |
41 | ||
1da177e4 LT |
42 | #if 0 |
43 | #define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args) | |
44 | #else | |
45 | #define debug(x,args...) | |
46 | #endif | |
47 | ||
48 | /* Don't ask.. */ | |
49 | #define to_cycles(ns) ((ns)/120) | |
50 | #define to_ns(cycles) ((cycles)*120) | |
51 | ||
52 | static int yenta_probe_cb_irq(struct yenta_socket *socket); | |
53 | ||
54 | ||
55 | static unsigned int override_bios; | |
56 | module_param(override_bios, uint, 0000); | |
57 | MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation"); | |
58 | ||
59 | /* | |
60 | * Generate easy-to-use ways of reading a cardbus sockets | |
61 | * regular memory space ("cb_xxx"), configuration space | |
62 | * ("config_xxx") and compatibility space ("exca_xxxx") | |
63 | */ | |
64 | static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) | |
65 | { | |
66 | u32 val = readl(socket->base + reg); | |
67 | debug("%p %04x %08x\n", socket, reg, val); | |
68 | return val; | |
69 | } | |
70 | ||
71 | static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) | |
72 | { | |
73 | debug("%p %04x %08x\n", socket, reg, val); | |
74 | writel(val, socket->base + reg); | |
75 | } | |
76 | ||
77 | static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) | |
78 | { | |
79 | u8 val; | |
80 | pci_read_config_byte(socket->dev, offset, &val); | |
81 | debug("%p %04x %02x\n", socket, offset, val); | |
82 | return val; | |
83 | } | |
84 | ||
85 | static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) | |
86 | { | |
87 | u16 val; | |
88 | pci_read_config_word(socket->dev, offset, &val); | |
89 | debug("%p %04x %04x\n", socket, offset, val); | |
90 | return val; | |
91 | } | |
92 | ||
93 | static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) | |
94 | { | |
95 | u32 val; | |
96 | pci_read_config_dword(socket->dev, offset, &val); | |
97 | debug("%p %04x %08x\n", socket, offset, val); | |
98 | return val; | |
99 | } | |
100 | ||
101 | static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) | |
102 | { | |
103 | debug("%p %04x %02x\n", socket, offset, val); | |
104 | pci_write_config_byte(socket->dev, offset, val); | |
105 | } | |
106 | ||
107 | static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) | |
108 | { | |
109 | debug("%p %04x %04x\n", socket, offset, val); | |
110 | pci_write_config_word(socket->dev, offset, val); | |
111 | } | |
112 | ||
113 | static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) | |
114 | { | |
115 | debug("%p %04x %08x\n", socket, offset, val); | |
116 | pci_write_config_dword(socket->dev, offset, val); | |
117 | } | |
118 | ||
119 | static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) | |
120 | { | |
121 | u8 val = readb(socket->base + 0x800 + reg); | |
122 | debug("%p %04x %02x\n", socket, reg, val); | |
123 | return val; | |
124 | } | |
125 | ||
126 | static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) | |
127 | { | |
128 | u16 val; | |
129 | val = readb(socket->base + 0x800 + reg); | |
130 | val |= readb(socket->base + 0x800 + reg + 1) << 8; | |
131 | debug("%p %04x %04x\n", socket, reg, val); | |
132 | return val; | |
133 | } | |
134 | ||
135 | static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) | |
136 | { | |
137 | debug("%p %04x %02x\n", socket, reg, val); | |
138 | writeb(val, socket->base + 0x800 + reg); | |
139 | } | |
140 | ||
141 | static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) | |
142 | { | |
143 | debug("%p %04x %04x\n", socket, reg, val); | |
144 | writeb(val, socket->base + 0x800 + reg); | |
145 | writeb(val >> 8, socket->base + 0x800 + reg + 1); | |
146 | } | |
147 | ||
148 | /* | |
149 | * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend | |
150 | * on what kind of card is inserted.. | |
151 | */ | |
152 | static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) | |
153 | { | |
154 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
155 | unsigned int val; | |
156 | u32 state = cb_readl(socket, CB_SOCKET_STATE); | |
157 | ||
158 | val = (state & CB_3VCARD) ? SS_3VCARD : 0; | |
159 | val |= (state & CB_XVCARD) ? SS_XVCARD : 0; | |
fa912bcb DR |
160 | val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; |
161 | val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; | |
162 | ||
1da177e4 LT |
163 | |
164 | if (state & CB_CBCARD) { | |
165 | val |= SS_CARDBUS; | |
166 | val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; | |
167 | val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; | |
168 | val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; | |
fa912bcb | 169 | } else if (state & CB_16BITCARD) { |
1da177e4 LT |
170 | u8 status = exca_readb(socket, I365_STATUS); |
171 | val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; | |
172 | if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { | |
173 | val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; | |
174 | } else { | |
175 | val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; | |
176 | val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; | |
177 | } | |
178 | val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; | |
179 | val |= (status & I365_CS_READY) ? SS_READY : 0; | |
180 | val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; | |
181 | } | |
182 | ||
183 | *value = val; | |
184 | return 0; | |
185 | } | |
186 | ||
187 | static int yenta_Vcc_power(u32 control) | |
188 | { | |
189 | switch (control & CB_SC_VCC_MASK) { | |
190 | case CB_SC_VCC_5V: return 50; | |
191 | case CB_SC_VCC_3V: return 33; | |
192 | default: return 0; | |
193 | } | |
194 | } | |
195 | ||
196 | static int yenta_Vpp_power(u32 control) | |
197 | { | |
198 | switch (control & CB_SC_VPP_MASK) { | |
199 | case CB_SC_VPP_12V: return 120; | |
200 | case CB_SC_VPP_5V: return 50; | |
201 | case CB_SC_VPP_3V: return 33; | |
202 | default: return 0; | |
203 | } | |
204 | } | |
205 | ||
206 | static int yenta_get_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
207 | { | |
208 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
209 | u8 reg; | |
210 | u32 control; | |
211 | ||
212 | control = cb_readl(socket, CB_SOCKET_CONTROL); | |
213 | ||
214 | state->Vcc = yenta_Vcc_power(control); | |
215 | state->Vpp = yenta_Vpp_power(control); | |
216 | state->io_irq = socket->io_irq; | |
217 | ||
218 | if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { | |
219 | u16 bridge = config_readw(socket, CB_BRIDGE_CONTROL); | |
220 | if (bridge & CB_BRIDGE_CRST) | |
221 | state->flags |= SS_RESET; | |
222 | return 0; | |
223 | } | |
224 | ||
225 | /* 16-bit card state.. */ | |
226 | reg = exca_readb(socket, I365_POWER); | |
227 | state->flags = (reg & I365_PWR_AUTO) ? SS_PWR_AUTO : 0; | |
228 | state->flags |= (reg & I365_PWR_OUT) ? SS_OUTPUT_ENA : 0; | |
229 | ||
230 | reg = exca_readb(socket, I365_INTCTL); | |
231 | state->flags |= (reg & I365_PC_RESET) ? 0 : SS_RESET; | |
232 | state->flags |= (reg & I365_PC_IOCARD) ? SS_IOCARD : 0; | |
233 | ||
234 | reg = exca_readb(socket, I365_CSCINT); | |
235 | state->csc_mask = (reg & I365_CSC_DETECT) ? SS_DETECT : 0; | |
236 | if (state->flags & SS_IOCARD) { | |
237 | state->csc_mask |= (reg & I365_CSC_STSCHG) ? SS_STSCHG : 0; | |
238 | } else { | |
239 | state->csc_mask |= (reg & I365_CSC_BVD1) ? SS_BATDEAD : 0; | |
240 | state->csc_mask |= (reg & I365_CSC_BVD2) ? SS_BATWARN : 0; | |
241 | state->csc_mask |= (reg & I365_CSC_READY) ? SS_READY : 0; | |
242 | } | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) | |
248 | { | |
249 | u32 reg = 0; /* CB_SC_STPCLK? */ | |
250 | switch (state->Vcc) { | |
251 | case 33: reg = CB_SC_VCC_3V; break; | |
252 | case 50: reg = CB_SC_VCC_5V; break; | |
253 | default: reg = 0; break; | |
254 | } | |
255 | switch (state->Vpp) { | |
256 | case 33: reg |= CB_SC_VPP_3V; break; | |
257 | case 50: reg |= CB_SC_VPP_5V; break; | |
258 | case 120: reg |= CB_SC_VPP_12V; break; | |
259 | } | |
260 | if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) | |
261 | cb_writel(socket, CB_SOCKET_CONTROL, reg); | |
262 | } | |
263 | ||
264 | static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
265 | { | |
266 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
267 | u16 bridge; | |
268 | ||
269 | yenta_set_power(socket, state); | |
270 | socket->io_irq = state->io_irq; | |
271 | bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); | |
272 | if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { | |
273 | u8 intr; | |
274 | bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; | |
275 | ||
276 | /* ISA interrupt control? */ | |
277 | intr = exca_readb(socket, I365_INTCTL); | |
278 | intr = (intr & ~0xf); | |
279 | if (!socket->cb_irq) { | |
280 | intr |= state->io_irq; | |
281 | bridge |= CB_BRIDGE_INTR; | |
282 | } | |
283 | exca_writeb(socket, I365_INTCTL, intr); | |
284 | } else { | |
285 | u8 reg; | |
286 | ||
287 | reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); | |
288 | reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; | |
289 | reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; | |
290 | if (state->io_irq != socket->cb_irq) { | |
291 | reg |= state->io_irq; | |
292 | bridge |= CB_BRIDGE_INTR; | |
293 | } | |
294 | exca_writeb(socket, I365_INTCTL, reg); | |
295 | ||
296 | reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); | |
297 | reg |= I365_PWR_NORESET; | |
298 | if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO; | |
299 | if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT; | |
300 | if (exca_readb(socket, I365_POWER) != reg) | |
301 | exca_writeb(socket, I365_POWER, reg); | |
302 | ||
303 | /* CSC interrupt: no ISA irq for CSC */ | |
304 | reg = I365_CSC_DETECT; | |
305 | if (state->flags & SS_IOCARD) { | |
306 | if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; | |
307 | } else { | |
308 | if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1; | |
309 | if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2; | |
310 | if (state->csc_mask & SS_READY) reg |= I365_CSC_READY; | |
311 | } | |
312 | exca_writeb(socket, I365_CSCINT, reg); | |
313 | exca_readb(socket, I365_CSC); | |
314 | if(sock->zoom_video) | |
315 | sock->zoom_video(sock, state->flags & SS_ZVCARD); | |
316 | } | |
317 | config_writew(socket, CB_BRIDGE_CONTROL, bridge); | |
318 | /* Socket event mask: get card insert/remove events.. */ | |
319 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
320 | cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); | |
321 | return 0; | |
322 | } | |
323 | ||
324 | static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) | |
325 | { | |
326 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
327 | int map; | |
328 | unsigned char ioctl, addr, enable; | |
329 | ||
330 | map = io->map; | |
331 | ||
332 | if (map > 1) | |
333 | return -EINVAL; | |
334 | ||
335 | enable = I365_ENA_IO(map); | |
336 | addr = exca_readb(socket, I365_ADDRWIN); | |
337 | ||
338 | /* Disable the window before changing it.. */ | |
339 | if (addr & enable) { | |
340 | addr &= ~enable; | |
341 | exca_writeb(socket, I365_ADDRWIN, addr); | |
342 | } | |
343 | ||
344 | exca_writew(socket, I365_IO(map)+I365_W_START, io->start); | |
345 | exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); | |
346 | ||
347 | ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); | |
348 | if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); | |
349 | if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); | |
350 | if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); | |
351 | exca_writeb(socket, I365_IOCTL, ioctl); | |
352 | ||
353 | if (io->flags & MAP_ACTIVE) | |
354 | exca_writeb(socket, I365_ADDRWIN, addr | enable); | |
355 | return 0; | |
356 | } | |
357 | ||
358 | static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) | |
359 | { | |
360 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
361 | struct pci_bus_region region; | |
362 | int map; | |
363 | unsigned char addr, enable; | |
364 | unsigned int start, stop, card_start; | |
365 | unsigned short word; | |
366 | ||
367 | pcibios_resource_to_bus(socket->dev, ®ion, mem->res); | |
368 | ||
369 | map = mem->map; | |
370 | start = region.start; | |
371 | stop = region.end; | |
372 | card_start = mem->card_start; | |
373 | ||
374 | if (map > 4 || start > stop || ((start ^ stop) >> 24) || | |
375 | (card_start >> 26) || mem->speed > 1000) | |
376 | return -EINVAL; | |
377 | ||
378 | enable = I365_ENA_MEM(map); | |
379 | addr = exca_readb(socket, I365_ADDRWIN); | |
380 | if (addr & enable) { | |
381 | addr &= ~enable; | |
382 | exca_writeb(socket, I365_ADDRWIN, addr); | |
383 | } | |
384 | ||
385 | exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); | |
386 | ||
387 | word = (start >> 12) & 0x0fff; | |
388 | if (mem->flags & MAP_16BIT) | |
389 | word |= I365_MEM_16BIT; | |
390 | if (mem->flags & MAP_0WS) | |
391 | word |= I365_MEM_0WS; | |
392 | exca_writew(socket, I365_MEM(map) + I365_W_START, word); | |
393 | ||
394 | word = (stop >> 12) & 0x0fff; | |
395 | switch (to_cycles(mem->speed)) { | |
396 | case 0: break; | |
397 | case 1: word |= I365_MEM_WS0; break; | |
398 | case 2: word |= I365_MEM_WS1; break; | |
399 | default: word |= I365_MEM_WS1 | I365_MEM_WS0; break; | |
400 | } | |
401 | exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); | |
402 | ||
403 | word = ((card_start - start) >> 12) & 0x3fff; | |
404 | if (mem->flags & MAP_WRPROT) | |
405 | word |= I365_MEM_WRPROT; | |
406 | if (mem->flags & MAP_ATTRIB) | |
407 | word |= I365_MEM_REG; | |
408 | exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); | |
409 | ||
410 | if (mem->flags & MAP_ACTIVE) | |
411 | exca_writeb(socket, I365_ADDRWIN, addr | enable); | |
412 | return 0; | |
413 | } | |
414 | ||
415 | ||
fa912bcb DR |
416 | |
417 | static irqreturn_t yenta_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1da177e4 | 418 | { |
fa912bcb DR |
419 | unsigned int events; |
420 | struct yenta_socket *socket = (struct yenta_socket *) dev_id; | |
1da177e4 LT |
421 | u8 csc; |
422 | u32 cb_event; | |
1da177e4 LT |
423 | |
424 | /* Clear interrupt status for the event */ | |
425 | cb_event = cb_readl(socket, CB_SOCKET_EVENT); | |
426 | cb_writel(socket, CB_SOCKET_EVENT, cb_event); | |
427 | ||
428 | csc = exca_readb(socket, I365_CSC); | |
429 | ||
430 | events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; | |
431 | events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; | |
432 | if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { | |
433 | events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; | |
434 | } else { | |
435 | events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; | |
436 | events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; | |
437 | events |= (csc & I365_CSC_READY) ? SS_READY : 0; | |
438 | } | |
1da177e4 | 439 | |
fa912bcb | 440 | if (events) |
1da177e4 | 441 | pcmcia_parse_events(&socket->socket, events); |
fa912bcb DR |
442 | |
443 | if (cb_event || csc) | |
1da177e4 | 444 | return IRQ_HANDLED; |
fa912bcb | 445 | |
1da177e4 LT |
446 | return IRQ_NONE; |
447 | } | |
448 | ||
449 | static void yenta_interrupt_wrapper(unsigned long data) | |
450 | { | |
451 | struct yenta_socket *socket = (struct yenta_socket *) data; | |
452 | ||
453 | yenta_interrupt(0, (void *)socket, NULL); | |
454 | socket->poll_timer.expires = jiffies + HZ; | |
455 | add_timer(&socket->poll_timer); | |
456 | } | |
457 | ||
458 | static void yenta_clear_maps(struct yenta_socket *socket) | |
459 | { | |
460 | int i; | |
461 | struct resource res = { .start = 0, .end = 0x0fff }; | |
462 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
463 | pccard_mem_map mem = { .res = &res, }; | |
464 | ||
465 | yenta_set_socket(&socket->socket, &dead_socket); | |
466 | for (i = 0; i < 2; i++) { | |
467 | io.map = i; | |
468 | yenta_set_io_map(&socket->socket, &io); | |
469 | } | |
470 | for (i = 0; i < 5; i++) { | |
471 | mem.map = i; | |
472 | yenta_set_mem_map(&socket->socket, &mem); | |
473 | } | |
474 | } | |
475 | ||
fa912bcb DR |
476 | /* redoes voltage interrogation if required */ |
477 | static void yenta_interrogate(struct yenta_socket *socket) | |
478 | { | |
479 | u32 state; | |
480 | ||
481 | state = cb_readl(socket, CB_SOCKET_STATE); | |
482 | if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || | |
483 | (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || | |
484 | ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) | |
485 | cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); | |
486 | } | |
487 | ||
1da177e4 LT |
488 | /* Called at resume and initialization events */ |
489 | static int yenta_sock_init(struct pcmcia_socket *sock) | |
490 | { | |
491 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
1da177e4 LT |
492 | u16 bridge; |
493 | ||
494 | bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~CB_BRIDGE_INTR; | |
495 | if (!socket->cb_irq) | |
496 | bridge |= CB_BRIDGE_INTR; | |
497 | config_writew(socket, CB_BRIDGE_CONTROL, bridge); | |
498 | ||
499 | exca_writeb(socket, I365_GBLCTL, 0x00); | |
500 | exca_writeb(socket, I365_GENCTL, 0x00); | |
501 | ||
502 | /* Redo card voltage interrogation */ | |
fa912bcb | 503 | yenta_interrogate(socket); |
1da177e4 LT |
504 | |
505 | yenta_clear_maps(socket); | |
506 | ||
507 | if (socket->type && socket->type->sock_init) | |
508 | socket->type->sock_init(socket); | |
509 | ||
510 | /* Re-enable CSC interrupts */ | |
511 | cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static int yenta_sock_suspend(struct pcmcia_socket *sock) | |
517 | { | |
518 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
519 | ||
520 | /* Disable CSC interrupts */ | |
521 | cb_writel(socket, CB_SOCKET_MASK, 0x0); | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
526 | /* | |
527 | * Use an adaptive allocation for the memory resource, | |
528 | * sometimes the memory behind pci bridges is limited: | |
529 | * 1/8 of the size of the io window of the parent. | |
eb0a90b4 DB |
530 | * max 4 MB, min 16 kB. We try very hard to not get below |
531 | * the "ACC" values, though. | |
1da177e4 LT |
532 | */ |
533 | #define BRIDGE_MEM_MAX 4*1024*1024 | |
eb0a90b4 | 534 | #define BRIDGE_MEM_ACC 128*1024 |
1da177e4 LT |
535 | #define BRIDGE_MEM_MIN 16*1024 |
536 | ||
eb0a90b4 DB |
537 | #define BRIDGE_IO_MAX 512 |
538 | #define BRIDGE_IO_ACC 256 | |
1da177e4 LT |
539 | #define BRIDGE_IO_MIN 32 |
540 | ||
541 | #ifndef PCIBIOS_MIN_CARDBUS_IO | |
542 | #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO | |
543 | #endif | |
544 | ||
eb0a90b4 DB |
545 | static int yenta_search_one_res(struct resource *root, struct resource *res, |
546 | u32 min) | |
547 | { | |
548 | u32 align, size, start, end; | |
549 | ||
550 | if (res->flags & IORESOURCE_IO) { | |
551 | align = 1024; | |
552 | size = BRIDGE_IO_MAX; | |
553 | start = PCIBIOS_MIN_CARDBUS_IO; | |
554 | end = ~0U; | |
555 | } else { | |
556 | unsigned long avail = root->end - root->start; | |
557 | int i; | |
558 | size = BRIDGE_MEM_MAX; | |
559 | if (size > avail/8) { | |
560 | size=(avail+1)/8; | |
561 | /* round size down to next power of 2 */ | |
562 | i = 0; | |
563 | while ((size /= 2) != 0) | |
564 | i++; | |
565 | size = 1 << i; | |
566 | } | |
567 | if (size < min) | |
568 | size = min; | |
569 | align = size; | |
570 | start = PCIBIOS_MIN_MEM; | |
571 | end = ~0U; | |
572 | } | |
573 | ||
574 | do { | |
575 | if (allocate_resource(root, res, size, start, end, align, | |
576 | NULL, NULL)==0) { | |
577 | return 1; | |
578 | } | |
579 | size = size/2; | |
580 | align = size; | |
581 | } while (size >= min); | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | ||
587 | static int yenta_search_res(struct yenta_socket *socket, struct resource *res, | |
588 | u32 min) | |
589 | { | |
590 | int i; | |
591 | for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) { | |
592 | struct resource * root = socket->dev->bus->resource[i]; | |
593 | if (!root) | |
594 | continue; | |
595 | ||
596 | if ((res->flags ^ root->flags) & | |
597 | (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) | |
598 | continue; /* Wrong type */ | |
599 | ||
600 | if (yenta_search_one_res(root, res, min)) | |
601 | return 1; | |
602 | } | |
603 | return 0; | |
604 | } | |
605 | ||
27879835 | 606 | static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) |
1da177e4 LT |
607 | { |
608 | struct pci_bus *bus; | |
609 | struct resource *root, *res; | |
610 | u32 start, end; | |
1da177e4 LT |
611 | unsigned mask; |
612 | ||
7925407a IK |
613 | res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr; |
614 | /* Already allocated? */ | |
615 | if (res->parent) | |
862104e5 | 616 | return; |
7925407a | 617 | |
1da177e4 LT |
618 | /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ |
619 | mask = ~0xfff; | |
620 | if (type & IORESOURCE_IO) | |
621 | mask = ~3; | |
622 | ||
1da177e4 | 623 | bus = socket->dev->subordinate; |
1da177e4 LT |
624 | res->name = bus->name; |
625 | res->flags = type; | |
1da177e4 | 626 | |
27879835 DB |
627 | start = config_readl(socket, addr_start) & mask; |
628 | end = config_readl(socket, addr_end) | ~mask; | |
1da177e4 LT |
629 | if (start && end > start && !override_bios) { |
630 | res->start = start; | |
631 | res->end = end; | |
862104e5 DB |
632 | root = pci_find_parent_resource(socket->dev, res); |
633 | if (root && (request_resource(root, res) == 0)) | |
1da177e4 | 634 | return; |
862104e5 | 635 | printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n", |
1da177e4 | 636 | pci_name(socket->dev), nr); |
1da177e4 LT |
637 | } |
638 | ||
639 | if (type & IORESOURCE_IO) { | |
eb0a90b4 DB |
640 | if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || |
641 | (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || | |
642 | (yenta_search_res(socket, res, BRIDGE_IO_MIN))) { | |
643 | config_writel(socket, addr_start, res->start); | |
644 | config_writel(socket, addr_end, res->end); | |
f7d1d23c | 645 | return; |
eb0a90b4 | 646 | } |
1da177e4 | 647 | } else { |
eb0a90b4 DB |
648 | if (type & IORESOURCE_PREFETCH) { |
649 | if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || | |
650 | (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || | |
651 | (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) { | |
652 | config_writel(socket, addr_start, res->start); | |
653 | config_writel(socket, addr_end, res->end); | |
f7d1d23c | 654 | return; |
eb0a90b4 DB |
655 | } |
656 | /* Approximating prefetchable by non-prefetchable */ | |
657 | res->flags = IORESOURCE_MEM; | |
1da177e4 | 658 | } |
eb0a90b4 DB |
659 | if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
660 | (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || | |
661 | (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) { | |
27879835 DB |
662 | config_writel(socket, addr_start, res->start); |
663 | config_writel(socket, addr_end, res->end); | |
f7d1d23c | 664 | return; |
1da177e4 | 665 | } |
eb0a90b4 DB |
666 | } |
667 | ||
1da177e4 | 668 | printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n", |
eb0a90b4 DB |
669 | pci_name(socket->dev), type); |
670 | res->start = res->end = res->flags = 0; | |
1da177e4 LT |
671 | } |
672 | ||
673 | /* | |
674 | * Allocate the bridge mappings for the device.. | |
675 | */ | |
676 | static void yenta_allocate_resources(struct yenta_socket *socket) | |
677 | { | |
27879835 DB |
678 | yenta_allocate_res(socket, 0, IORESOURCE_IO, |
679 | PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); | |
680 | yenta_allocate_res(socket, 1, IORESOURCE_IO, | |
681 | PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); | |
682 | yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH, | |
683 | PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); | |
684 | yenta_allocate_res(socket, 3, IORESOURCE_MEM, | |
685 | PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); | |
1da177e4 LT |
686 | } |
687 | ||
688 | ||
689 | /* | |
690 | * Free the bridge mappings for the device.. | |
691 | */ | |
692 | static void yenta_free_resources(struct yenta_socket *socket) | |
693 | { | |
694 | int i; | |
695 | for (i=0;i<4;i++) { | |
696 | struct resource *res; | |
697 | res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i; | |
698 | if (res->start != 0 && res->end != 0) | |
699 | release_resource(res); | |
700 | res->start = res->end = 0; | |
701 | } | |
702 | } | |
703 | ||
704 | ||
705 | /* | |
706 | * Close it down - release our resources and go home.. | |
707 | */ | |
708 | static void yenta_close(struct pci_dev *dev) | |
709 | { | |
710 | struct yenta_socket *sock = pci_get_drvdata(dev); | |
711 | ||
712 | /* we don't want a dying socket registered */ | |
713 | pcmcia_unregister_socket(&sock->socket); | |
714 | ||
715 | /* Disable all events so we don't die in an IRQ storm */ | |
716 | cb_writel(sock, CB_SOCKET_MASK, 0x0); | |
717 | exca_writeb(sock, I365_CSCINT, 0); | |
718 | ||
719 | if (sock->cb_irq) | |
720 | free_irq(sock->cb_irq, sock); | |
721 | else | |
722 | del_timer_sync(&sock->poll_timer); | |
723 | ||
724 | if (sock->base) | |
725 | iounmap(sock->base); | |
726 | yenta_free_resources(sock); | |
727 | ||
728 | pci_release_regions(dev); | |
729 | pci_disable_device(dev); | |
730 | pci_set_drvdata(dev, NULL); | |
731 | } | |
732 | ||
733 | ||
734 | static struct pccard_operations yenta_socket_operations = { | |
735 | .init = yenta_sock_init, | |
736 | .suspend = yenta_sock_suspend, | |
737 | .get_status = yenta_get_status, | |
738 | .get_socket = yenta_get_socket, | |
739 | .set_socket = yenta_set_socket, | |
740 | .set_io_map = yenta_set_io_map, | |
741 | .set_mem_map = yenta_set_mem_map, | |
742 | }; | |
743 | ||
744 | ||
745 | #include "ti113x.h" | |
746 | #include "ricoh.h" | |
747 | #include "topic.h" | |
748 | #include "o2micro.h" | |
749 | ||
750 | enum { | |
751 | CARDBUS_TYPE_DEFAULT = -1, | |
752 | CARDBUS_TYPE_TI, | |
753 | CARDBUS_TYPE_TI113X, | |
754 | CARDBUS_TYPE_TI12XX, | |
755 | CARDBUS_TYPE_TI1250, | |
756 | CARDBUS_TYPE_RICOH, | |
757 | CARDBUS_TYPE_TOPIC97, | |
758 | CARDBUS_TYPE_O2MICRO, | |
759 | }; | |
760 | ||
761 | /* | |
762 | * Different cardbus controllers have slightly different | |
763 | * initialization sequences etc details. List them here.. | |
764 | */ | |
765 | static struct cardbus_type cardbus_type[] = { | |
766 | [CARDBUS_TYPE_TI] = { | |
767 | .override = ti_override, | |
768 | .save_state = ti_save_state, | |
769 | .restore_state = ti_restore_state, | |
770 | .sock_init = ti_init, | |
771 | }, | |
772 | [CARDBUS_TYPE_TI113X] = { | |
773 | .override = ti113x_override, | |
774 | .save_state = ti_save_state, | |
775 | .restore_state = ti_restore_state, | |
776 | .sock_init = ti_init, | |
777 | }, | |
778 | [CARDBUS_TYPE_TI12XX] = { | |
779 | .override = ti12xx_override, | |
780 | .save_state = ti_save_state, | |
781 | .restore_state = ti_restore_state, | |
782 | .sock_init = ti_init, | |
783 | }, | |
784 | [CARDBUS_TYPE_TI1250] = { | |
785 | .override = ti1250_override, | |
786 | .save_state = ti_save_state, | |
787 | .restore_state = ti_restore_state, | |
788 | .sock_init = ti_init, | |
789 | }, | |
790 | [CARDBUS_TYPE_RICOH] = { | |
791 | .override = ricoh_override, | |
792 | .save_state = ricoh_save_state, | |
793 | .restore_state = ricoh_restore_state, | |
794 | }, | |
795 | [CARDBUS_TYPE_TOPIC97] = { | |
796 | .override = topic97_override, | |
797 | }, | |
798 | [CARDBUS_TYPE_O2MICRO] = { | |
799 | .override = o2micro_override, | |
800 | .restore_state = o2micro_restore_state, | |
801 | }, | |
802 | }; | |
803 | ||
804 | ||
805 | /* | |
806 | * Only probe "regular" interrupts, don't | |
807 | * touch dangerous spots like the mouse irq, | |
808 | * because there are mice that apparently | |
809 | * get really confused if they get fondled | |
810 | * too intimately. | |
811 | * | |
812 | * Default to 11, 10, 9, 7, 6, 5, 4, 3. | |
813 | */ | |
814 | static u32 isa_interrupts = 0x0ef8; | |
815 | ||
816 | static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) | |
817 | { | |
818 | int i; | |
819 | unsigned long val; | |
820 | u16 bridge_ctrl; | |
821 | u32 mask; | |
822 | ||
823 | /* Set up ISA irq routing to probe the ISA irqs.. */ | |
824 | bridge_ctrl = config_readw(socket, CB_BRIDGE_CONTROL); | |
825 | if (!(bridge_ctrl & CB_BRIDGE_INTR)) { | |
826 | bridge_ctrl |= CB_BRIDGE_INTR; | |
827 | config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); | |
828 | } | |
829 | ||
830 | /* | |
831 | * Probe for usable interrupts using the force | |
832 | * register to generate bogus card status events. | |
833 | */ | |
834 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
835 | cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); | |
836 | exca_writeb(socket, I365_CSCINT, 0); | |
837 | val = probe_irq_on() & isa_irq_mask; | |
838 | for (i = 1; i < 16; i++) { | |
839 | if (!((val >> i) & 1)) | |
840 | continue; | |
841 | exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); | |
842 | cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); | |
843 | udelay(100); | |
844 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
845 | } | |
846 | cb_writel(socket, CB_SOCKET_MASK, 0); | |
847 | exca_writeb(socket, I365_CSCINT, 0); | |
848 | ||
849 | mask = probe_irq_mask(val) & 0xffff; | |
850 | ||
851 | bridge_ctrl &= ~CB_BRIDGE_INTR; | |
852 | config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); | |
853 | ||
854 | return mask; | |
855 | } | |
856 | ||
857 | ||
858 | /* interrupt handler, only used during probing */ | |
859 | static irqreturn_t yenta_probe_handler(int irq, void *dev_id, struct pt_regs *regs) | |
860 | { | |
861 | struct yenta_socket *socket = (struct yenta_socket *) dev_id; | |
862 | u8 csc; | |
863 | u32 cb_event; | |
864 | ||
865 | /* Clear interrupt status for the event */ | |
866 | cb_event = cb_readl(socket, CB_SOCKET_EVENT); | |
867 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
868 | csc = exca_readb(socket, I365_CSC); | |
869 | ||
870 | if (cb_event || csc) { | |
871 | socket->probe_status = 1; | |
872 | return IRQ_HANDLED; | |
873 | } | |
874 | ||
875 | return IRQ_NONE; | |
876 | } | |
877 | ||
878 | /* probes the PCI interrupt, use only on override functions */ | |
879 | static int yenta_probe_cb_irq(struct yenta_socket *socket) | |
880 | { | |
881 | u16 bridge_ctrl; | |
882 | ||
883 | if (!socket->cb_irq) | |
884 | return -1; | |
885 | ||
886 | socket->probe_status = 0; | |
887 | ||
888 | /* disable ISA interrupts */ | |
889 | bridge_ctrl = config_readw(socket, CB_BRIDGE_CONTROL); | |
890 | bridge_ctrl &= ~CB_BRIDGE_INTR; | |
891 | config_writew(socket, CB_BRIDGE_CONTROL, bridge_ctrl); | |
892 | ||
893 | if (request_irq(socket->cb_irq, yenta_probe_handler, SA_SHIRQ, "yenta", socket)) { | |
894 | printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n"); | |
895 | return -1; | |
896 | } | |
897 | ||
898 | /* generate interrupt, wait */ | |
899 | exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG); | |
900 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
901 | cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); | |
902 | cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); | |
903 | ||
904 | msleep(100); | |
905 | ||
906 | /* disable interrupts */ | |
907 | cb_writel(socket, CB_SOCKET_MASK, 0); | |
908 | exca_writeb(socket, I365_CSCINT, 0); | |
909 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
910 | exca_readb(socket, I365_CSC); | |
911 | ||
912 | free_irq(socket->cb_irq, socket); | |
913 | ||
914 | return (int) socket->probe_status; | |
915 | } | |
916 | ||
917 | ||
918 | ||
919 | /* | |
920 | * Set static data that doesn't need re-initializing.. | |
921 | */ | |
922 | static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) | |
923 | { | |
1da177e4 | 924 | socket->socket.pci_irq = socket->cb_irq; |
fa912bcb DR |
925 | if (isa_probe) |
926 | socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); | |
927 | else | |
928 | socket->socket.irq_mask = 0; | |
1da177e4 LT |
929 | |
930 | printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n", | |
931 | socket->socket.irq_mask, socket->cb_irq); | |
932 | } | |
933 | ||
934 | /* | |
935 | * Initialize the standard cardbus registers | |
936 | */ | |
937 | static void yenta_config_init(struct yenta_socket *socket) | |
938 | { | |
939 | u16 bridge; | |
940 | struct pci_dev *dev = socket->dev; | |
941 | ||
942 | pci_set_power_state(socket->dev, 0); | |
943 | ||
944 | config_writel(socket, CB_LEGACY_MODE_BASE, 0); | |
945 | config_writel(socket, PCI_BASE_ADDRESS_0, dev->resource[0].start); | |
946 | config_writew(socket, PCI_COMMAND, | |
947 | PCI_COMMAND_IO | | |
948 | PCI_COMMAND_MEMORY | | |
949 | PCI_COMMAND_MASTER | | |
950 | PCI_COMMAND_WAIT); | |
951 | ||
952 | /* MAGIC NUMBERS! Fixme */ | |
953 | config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); | |
954 | config_writeb(socket, PCI_LATENCY_TIMER, 168); | |
955 | config_writel(socket, PCI_PRIMARY_BUS, | |
956 | (176 << 24) | /* sec. latency timer */ | |
957 | (dev->subordinate->subordinate << 16) | /* subordinate bus */ | |
958 | (dev->subordinate->secondary << 8) | /* secondary bus */ | |
959 | dev->subordinate->primary); /* primary bus */ | |
960 | ||
961 | /* | |
962 | * Set up the bridging state: | |
963 | * - enable write posting. | |
964 | * - memory window 0 prefetchable, window 1 non-prefetchable | |
965 | * - PCI interrupts enabled if a PCI interrupt exists.. | |
966 | */ | |
967 | bridge = config_readw(socket, CB_BRIDGE_CONTROL); | |
968 | bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_INTR | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); | |
969 | bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN | CB_BRIDGE_INTR; | |
970 | config_writew(socket, CB_BRIDGE_CONTROL, bridge); | |
971 | } | |
972 | ||
973 | /* | |
974 | * Initialize a cardbus controller. Make sure we have a usable | |
975 | * interrupt, and that we can map the cardbus area. Fill in the | |
976 | * socket information structure.. | |
977 | */ | |
978 | static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id) | |
979 | { | |
980 | struct yenta_socket *socket; | |
981 | int ret; | |
982 | ||
983 | socket = kmalloc(sizeof(struct yenta_socket), GFP_KERNEL); | |
984 | if (!socket) | |
985 | return -ENOMEM; | |
986 | memset(socket, 0, sizeof(*socket)); | |
987 | ||
988 | /* prepare pcmcia_socket */ | |
989 | socket->socket.ops = ¥ta_socket_operations; | |
990 | socket->socket.resource_ops = &pccard_nonstatic_ops; | |
991 | socket->socket.dev.dev = &dev->dev; | |
992 | socket->socket.driver_data = socket; | |
993 | socket->socket.owner = THIS_MODULE; | |
5bc6b68a RK |
994 | socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; |
995 | socket->socket.map_size = 0x1000; | |
996 | socket->socket.cb_dev = dev; | |
1da177e4 LT |
997 | |
998 | /* prepare struct yenta_socket */ | |
999 | socket->dev = dev; | |
1000 | pci_set_drvdata(dev, socket); | |
1001 | ||
1002 | /* | |
1003 | * Do some basic sanity checking.. | |
1004 | */ | |
1005 | if (pci_enable_device(dev)) { | |
1006 | ret = -EBUSY; | |
1007 | goto free; | |
1008 | } | |
1009 | ||
1010 | ret = pci_request_regions(dev, "yenta_socket"); | |
1011 | if (ret) | |
1012 | goto disable; | |
1013 | ||
1014 | if (!pci_resource_start(dev, 0)) { | |
1015 | printk(KERN_ERR "No cardbus resource!\n"); | |
1016 | ret = -ENODEV; | |
1017 | goto release; | |
1018 | } | |
1019 | ||
1020 | /* | |
1021 | * Ok, start setup.. Map the cardbus registers, | |
1022 | * and request the IRQ. | |
1023 | */ | |
1024 | socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); | |
1025 | if (!socket->base) { | |
1026 | ret = -ENOMEM; | |
1027 | goto release; | |
1028 | } | |
1029 | ||
1030 | /* | |
1031 | * report the subsystem vendor and device for help debugging | |
1032 | * the irq stuff... | |
1033 | */ | |
1034 | printk(KERN_INFO "Yenta: CardBus bridge found at %s [%04x:%04x]\n", | |
1035 | pci_name(dev), dev->subsystem_vendor, dev->subsystem_device); | |
1036 | ||
1037 | yenta_config_init(socket); | |
1038 | ||
1039 | /* Disable all events */ | |
1040 | cb_writel(socket, CB_SOCKET_MASK, 0x0); | |
1041 | ||
1042 | /* Set up the bridge regions.. */ | |
1043 | yenta_allocate_resources(socket); | |
1044 | ||
1045 | socket->cb_irq = dev->irq; | |
1046 | ||
1047 | /* Do we have special options for the device? */ | |
1048 | if (id->driver_data != CARDBUS_TYPE_DEFAULT && | |
1049 | id->driver_data < ARRAY_SIZE(cardbus_type)) { | |
1050 | socket->type = &cardbus_type[id->driver_data]; | |
1051 | ||
1052 | ret = socket->type->override(socket); | |
1053 | if (ret < 0) | |
1054 | goto unmap; | |
1055 | } | |
1056 | ||
1057 | /* We must finish initialization here */ | |
1058 | ||
1059 | if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, SA_SHIRQ, "yenta", socket)) { | |
1060 | /* No IRQ or request_irq failed. Poll */ | |
1061 | socket->cb_irq = 0; /* But zero is a valid IRQ number. */ | |
1062 | init_timer(&socket->poll_timer); | |
1063 | socket->poll_timer.function = yenta_interrupt_wrapper; | |
1064 | socket->poll_timer.data = (unsigned long)socket; | |
1065 | socket->poll_timer.expires = jiffies + HZ; | |
1066 | add_timer(&socket->poll_timer); | |
5bc6b68a RK |
1067 | printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n" |
1068 | KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n"); | |
1069 | } else { | |
1070 | socket->socket.features |= SS_CAP_CARDBUS; | |
1da177e4 LT |
1071 | } |
1072 | ||
1073 | /* Figure out what the dang thing can do for the PCMCIA layer... */ | |
fa912bcb | 1074 | yenta_interrogate(socket); |
1da177e4 LT |
1075 | yenta_get_socket_capabilities(socket, isa_interrupts); |
1076 | printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE)); | |
1077 | ||
1078 | /* Register it with the pcmcia layer.. */ | |
1079 | ret = pcmcia_register_socket(&socket->socket); | |
1080 | if (ret == 0) | |
1081 | goto out; | |
1082 | ||
1083 | unmap: | |
1084 | iounmap(socket->base); | |
1085 | release: | |
1086 | pci_release_regions(dev); | |
1087 | disable: | |
1088 | pci_disable_device(dev); | |
1089 | free: | |
1090 | kfree(socket); | |
1091 | out: | |
1092 | return ret; | |
1093 | } | |
1094 | ||
1095 | ||
1096 | static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state) | |
1097 | { | |
1098 | struct yenta_socket *socket = pci_get_drvdata(dev); | |
1099 | int ret; | |
1100 | ||
1101 | ret = pcmcia_socket_dev_suspend(&dev->dev, state); | |
1102 | ||
1103 | if (socket) { | |
1104 | if (socket->type && socket->type->save_state) | |
1105 | socket->type->save_state(socket); | |
1106 | ||
1107 | /* FIXME: pci_save_state needs to have a better interface */ | |
1108 | pci_save_state(dev); | |
1109 | pci_read_config_dword(dev, 16*4, &socket->saved_state[0]); | |
1110 | pci_read_config_dword(dev, 17*4, &socket->saved_state[1]); | |
d58da590 | 1111 | pci_disable_device(dev); |
1da177e4 LT |
1112 | |
1113 | /* | |
1114 | * Some laptops (IBM T22) do not like us putting the Cardbus | |
1115 | * bridge into D3. At a guess, some other laptop will | |
1116 | * probably require this, so leave it commented out for now. | |
1117 | */ | |
1118 | /* pci_set_power_state(dev, 3); */ | |
1119 | } | |
1120 | ||
1121 | return ret; | |
1122 | } | |
1123 | ||
1124 | ||
1125 | static int yenta_dev_resume (struct pci_dev *dev) | |
1126 | { | |
1127 | struct yenta_socket *socket = pci_get_drvdata(dev); | |
1128 | ||
1129 | if (socket) { | |
1130 | pci_set_power_state(dev, 0); | |
1131 | /* FIXME: pci_restore_state needs to have a better interface */ | |
1132 | pci_restore_state(dev); | |
1133 | pci_write_config_dword(dev, 16*4, socket->saved_state[0]); | |
1134 | pci_write_config_dword(dev, 17*4, socket->saved_state[1]); | |
d58da590 DSL |
1135 | pci_enable_device(dev); |
1136 | pci_set_master(dev); | |
1da177e4 LT |
1137 | |
1138 | if (socket->type && socket->type->restore_state) | |
1139 | socket->type->restore_state(socket); | |
1140 | } | |
1141 | ||
1142 | return pcmcia_socket_dev_resume(&dev->dev); | |
1143 | } | |
1144 | ||
1145 | ||
1146 | #define CB_ID(vend,dev,type) \ | |
1147 | { \ | |
1148 | .vendor = vend, \ | |
1149 | .device = dev, \ | |
1150 | .subvendor = PCI_ANY_ID, \ | |
1151 | .subdevice = PCI_ANY_ID, \ | |
1152 | .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ | |
1153 | .class_mask = ~0, \ | |
1154 | .driver_data = CARDBUS_TYPE_##type, \ | |
1155 | } | |
1156 | ||
1157 | static struct pci_device_id yenta_table [] = { | |
1158 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), | |
1159 | ||
1160 | /* | |
1161 | * TBD: Check if these TI variants can use more | |
1162 | * advanced overrides instead. (I can't get the | |
1163 | * data sheets for these devices. --rmk) | |
1164 | */ | |
1165 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), | |
1166 | ||
1167 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), | |
1168 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), | |
1169 | ||
1170 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), | |
1171 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), | |
1172 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), | |
1173 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), | |
1174 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), | |
1175 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), | |
1176 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), | |
1177 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), | |
1178 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), | |
1179 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), | |
1180 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), | |
1181 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), | |
1182 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), | |
1183 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), | |
1184 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), | |
1185 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), | |
1186 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), | |
1187 | ||
1188 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), | |
1189 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), | |
1190 | ||
1191 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, TI12XX), | |
1192 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, TI12XX), | |
1193 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, TI1250), | |
1194 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, TI12XX), | |
1195 | ||
1196 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), | |
1197 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), | |
1198 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), | |
1199 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), | |
1200 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), | |
1201 | ||
1202 | CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), | |
1203 | CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), | |
1204 | ||
1205 | CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), | |
1206 | ||
1207 | /* match any cardbus bridge */ | |
1208 | CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), | |
1209 | { /* all zeroes */ } | |
1210 | }; | |
1211 | MODULE_DEVICE_TABLE(pci, yenta_table); | |
1212 | ||
1213 | ||
1214 | static struct pci_driver yenta_cardbus_driver = { | |
1215 | .name = "yenta_cardbus", | |
1216 | .id_table = yenta_table, | |
1217 | .probe = yenta_probe, | |
1218 | .remove = __devexit_p(yenta_close), | |
1219 | .suspend = yenta_dev_suspend, | |
1220 | .resume = yenta_dev_resume, | |
1221 | }; | |
1222 | ||
1223 | ||
1224 | static int __init yenta_socket_init(void) | |
1225 | { | |
1226 | return pci_register_driver (¥ta_cardbus_driver); | |
1227 | } | |
1228 | ||
1229 | ||
1230 | static void __exit yenta_socket_exit (void) | |
1231 | { | |
1232 | pci_unregister_driver (¥ta_cardbus_driver); | |
1233 | } | |
1234 | ||
1235 | ||
1236 | module_init(yenta_socket_init); | |
1237 | module_exit(yenta_socket_exit); | |
1238 | ||
1239 | MODULE_LICENSE("GPL"); |