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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 | ||
63e7ebd0 DR |
52 | /** |
53 | * yenta PCI irq probing. | |
54 | * currently only used in the TI/EnE initialization code | |
55 | */ | |
56 | #ifdef CONFIG_YENTA_TI | |
1da177e4 | 57 | static int yenta_probe_cb_irq(struct yenta_socket *socket); |
63e7ebd0 | 58 | #endif |
1da177e4 LT |
59 | |
60 | ||
61 | static unsigned int override_bios; | |
62 | module_param(override_bios, uint, 0000); | |
63 | MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation"); | |
64 | ||
65 | /* | |
66 | * Generate easy-to-use ways of reading a cardbus sockets | |
67 | * regular memory space ("cb_xxx"), configuration space | |
68 | * ("config_xxx") and compatibility space ("exca_xxxx") | |
69 | */ | |
70 | static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) | |
71 | { | |
72 | u32 val = readl(socket->base + reg); | |
73 | debug("%p %04x %08x\n", socket, reg, val); | |
74 | return val; | |
75 | } | |
76 | ||
77 | static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) | |
78 | { | |
79 | debug("%p %04x %08x\n", socket, reg, val); | |
80 | writel(val, socket->base + reg); | |
c8751e4c | 81 | readl(socket->base + reg); /* avoid problems with PCI write posting */ |
1da177e4 LT |
82 | } |
83 | ||
84 | static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) | |
85 | { | |
86 | u8 val; | |
87 | pci_read_config_byte(socket->dev, offset, &val); | |
88 | debug("%p %04x %02x\n", socket, offset, val); | |
89 | return val; | |
90 | } | |
91 | ||
92 | static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) | |
93 | { | |
94 | u16 val; | |
95 | pci_read_config_word(socket->dev, offset, &val); | |
96 | debug("%p %04x %04x\n", socket, offset, val); | |
97 | return val; | |
98 | } | |
99 | ||
100 | static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) | |
101 | { | |
102 | u32 val; | |
103 | pci_read_config_dword(socket->dev, offset, &val); | |
104 | debug("%p %04x %08x\n", socket, offset, val); | |
105 | return val; | |
106 | } | |
107 | ||
108 | static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) | |
109 | { | |
110 | debug("%p %04x %02x\n", socket, offset, val); | |
111 | pci_write_config_byte(socket->dev, offset, val); | |
112 | } | |
113 | ||
114 | static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) | |
115 | { | |
116 | debug("%p %04x %04x\n", socket, offset, val); | |
117 | pci_write_config_word(socket->dev, offset, val); | |
118 | } | |
119 | ||
120 | static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) | |
121 | { | |
122 | debug("%p %04x %08x\n", socket, offset, val); | |
123 | pci_write_config_dword(socket->dev, offset, val); | |
124 | } | |
125 | ||
126 | static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) | |
127 | { | |
128 | u8 val = readb(socket->base + 0x800 + reg); | |
129 | debug("%p %04x %02x\n", socket, reg, val); | |
130 | return val; | |
131 | } | |
132 | ||
133 | static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) | |
134 | { | |
135 | u16 val; | |
136 | val = readb(socket->base + 0x800 + reg); | |
137 | val |= readb(socket->base + 0x800 + reg + 1) << 8; | |
138 | debug("%p %04x %04x\n", socket, reg, val); | |
139 | return val; | |
140 | } | |
141 | ||
142 | static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) | |
143 | { | |
144 | debug("%p %04x %02x\n", socket, reg, val); | |
145 | writeb(val, socket->base + 0x800 + reg); | |
c8751e4c | 146 | readb(socket->base + 0x800 + reg); /* PCI write posting... */ |
1da177e4 LT |
147 | } |
148 | ||
149 | static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) | |
150 | { | |
151 | debug("%p %04x %04x\n", socket, reg, val); | |
152 | writeb(val, socket->base + 0x800 + reg); | |
153 | writeb(val >> 8, socket->base + 0x800 + reg + 1); | |
c8751e4c DR |
154 | |
155 | /* PCI write posting... */ | |
156 | readb(socket->base + 0x800 + reg); | |
157 | readb(socket->base + 0x800 + reg + 1); | |
1da177e4 LT |
158 | } |
159 | ||
030ee39c LT |
160 | static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) |
161 | { | |
162 | struct pci_dev *dev = to_pci_dev(yentadev); | |
163 | struct yenta_socket *socket = pci_get_drvdata(dev); | |
164 | int offset = 0, i; | |
165 | ||
166 | offset = snprintf(buf, PAGE_SIZE, "CB registers:"); | |
167 | for (i = 0; i < 0x24; i += 4) { | |
168 | unsigned val; | |
169 | if (!(i & 15)) | |
170 | offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); | |
171 | val = cb_readl(socket, i); | |
172 | offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val); | |
173 | } | |
174 | ||
175 | offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:"); | |
176 | for (i = 0; i < 0x45; i++) { | |
177 | unsigned char val; | |
178 | if (!(i & 7)) { | |
179 | if (i & 8) { | |
180 | memcpy(buf + offset, " -", 2); | |
181 | offset += 2; | |
182 | } else | |
183 | offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); | |
184 | } | |
185 | val = exca_readb(socket, i); | |
186 | offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val); | |
187 | } | |
188 | buf[offset++] = '\n'; | |
189 | return offset; | |
190 | } | |
191 | ||
192 | static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); | |
193 | ||
1da177e4 LT |
194 | /* |
195 | * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend | |
196 | * on what kind of card is inserted.. | |
197 | */ | |
198 | static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) | |
199 | { | |
200 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
201 | unsigned int val; | |
202 | u32 state = cb_readl(socket, CB_SOCKET_STATE); | |
203 | ||
204 | val = (state & CB_3VCARD) ? SS_3VCARD : 0; | |
205 | val |= (state & CB_XVCARD) ? SS_XVCARD : 0; | |
fa912bcb DR |
206 | val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; |
207 | val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; | |
208 | ||
1da177e4 LT |
209 | |
210 | if (state & CB_CBCARD) { | |
211 | val |= SS_CARDBUS; | |
212 | val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; | |
213 | val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; | |
214 | val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; | |
fa912bcb | 215 | } else if (state & CB_16BITCARD) { |
1da177e4 LT |
216 | u8 status = exca_readb(socket, I365_STATUS); |
217 | val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; | |
218 | if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { | |
219 | val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; | |
220 | } else { | |
221 | val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; | |
222 | val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; | |
223 | } | |
224 | val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; | |
225 | val |= (status & I365_CS_READY) ? SS_READY : 0; | |
226 | val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; | |
227 | } | |
228 | ||
229 | *value = val; | |
230 | return 0; | |
231 | } | |
232 | ||
1da177e4 LT |
233 | static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) |
234 | { | |
ea2f1590 DR |
235 | /* some birdges require to use the ExCA registers to power 16bit cards */ |
236 | if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && | |
237 | (socket->flags & YENTA_16BIT_POWER_EXCA)) { | |
238 | u8 reg, old; | |
239 | reg = old = exca_readb(socket, I365_POWER); | |
240 | reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); | |
241 | ||
242 | /* i82365SL-DF style */ | |
243 | if (socket->flags & YENTA_16BIT_POWER_DF) { | |
244 | switch (state->Vcc) { | |
245 | case 33: reg |= I365_VCC_3V; break; | |
246 | case 50: reg |= I365_VCC_5V; break; | |
247 | default: reg = 0; break; | |
248 | } | |
249 | switch (state->Vpp) { | |
250 | case 33: | |
251 | case 50: reg |= I365_VPP1_5V; break; | |
252 | case 120: reg |= I365_VPP1_12V; break; | |
253 | } | |
254 | } else { | |
255 | /* i82365SL-B style */ | |
256 | switch (state->Vcc) { | |
257 | case 50: reg |= I365_VCC_5V; break; | |
258 | default: reg = 0; break; | |
259 | } | |
260 | switch (state->Vpp) { | |
261 | case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break; | |
262 | case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break; | |
263 | } | |
264 | } | |
265 | ||
266 | if (reg != old) | |
267 | exca_writeb(socket, I365_POWER, reg); | |
268 | } else { | |
269 | u32 reg = 0; /* CB_SC_STPCLK? */ | |
270 | switch (state->Vcc) { | |
271 | case 33: reg = CB_SC_VCC_3V; break; | |
272 | case 50: reg = CB_SC_VCC_5V; break; | |
273 | default: reg = 0; break; | |
274 | } | |
275 | switch (state->Vpp) { | |
276 | case 33: reg |= CB_SC_VPP_3V; break; | |
277 | case 50: reg |= CB_SC_VPP_5V; break; | |
278 | case 120: reg |= CB_SC_VPP_12V; break; | |
279 | } | |
280 | if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) | |
281 | cb_writel(socket, CB_SOCKET_CONTROL, reg); | |
1da177e4 | 282 | } |
1da177e4 LT |
283 | } |
284 | ||
285 | static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) | |
286 | { | |
287 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
288 | u16 bridge; | |
289 | ||
290 | yenta_set_power(socket, state); | |
291 | socket->io_irq = state->io_irq; | |
292 | bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); | |
293 | if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { | |
294 | u8 intr; | |
295 | bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; | |
296 | ||
297 | /* ISA interrupt control? */ | |
298 | intr = exca_readb(socket, I365_INTCTL); | |
299 | intr = (intr & ~0xf); | |
300 | if (!socket->cb_irq) { | |
301 | intr |= state->io_irq; | |
302 | bridge |= CB_BRIDGE_INTR; | |
303 | } | |
304 | exca_writeb(socket, I365_INTCTL, intr); | |
305 | } else { | |
306 | u8 reg; | |
307 | ||
308 | reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); | |
309 | reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; | |
310 | reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; | |
311 | if (state->io_irq != socket->cb_irq) { | |
312 | reg |= state->io_irq; | |
313 | bridge |= CB_BRIDGE_INTR; | |
314 | } | |
315 | exca_writeb(socket, I365_INTCTL, reg); | |
316 | ||
317 | reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); | |
318 | reg |= I365_PWR_NORESET; | |
319 | if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO; | |
320 | if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT; | |
321 | if (exca_readb(socket, I365_POWER) != reg) | |
322 | exca_writeb(socket, I365_POWER, reg); | |
323 | ||
324 | /* CSC interrupt: no ISA irq for CSC */ | |
325 | reg = I365_CSC_DETECT; | |
326 | if (state->flags & SS_IOCARD) { | |
327 | if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; | |
328 | } else { | |
329 | if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1; | |
330 | if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2; | |
331 | if (state->csc_mask & SS_READY) reg |= I365_CSC_READY; | |
332 | } | |
333 | exca_writeb(socket, I365_CSCINT, reg); | |
334 | exca_readb(socket, I365_CSC); | |
335 | if(sock->zoom_video) | |
336 | sock->zoom_video(sock, state->flags & SS_ZVCARD); | |
337 | } | |
338 | config_writew(socket, CB_BRIDGE_CONTROL, bridge); | |
339 | /* Socket event mask: get card insert/remove events.. */ | |
340 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
341 | cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); | |
342 | return 0; | |
343 | } | |
344 | ||
345 | static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) | |
346 | { | |
347 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
348 | int map; | |
349 | unsigned char ioctl, addr, enable; | |
350 | ||
351 | map = io->map; | |
352 | ||
353 | if (map > 1) | |
354 | return -EINVAL; | |
355 | ||
356 | enable = I365_ENA_IO(map); | |
357 | addr = exca_readb(socket, I365_ADDRWIN); | |
358 | ||
359 | /* Disable the window before changing it.. */ | |
360 | if (addr & enable) { | |
361 | addr &= ~enable; | |
362 | exca_writeb(socket, I365_ADDRWIN, addr); | |
363 | } | |
364 | ||
365 | exca_writew(socket, I365_IO(map)+I365_W_START, io->start); | |
366 | exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); | |
367 | ||
368 | ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); | |
369 | if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); | |
370 | if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); | |
371 | if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); | |
372 | exca_writeb(socket, I365_IOCTL, ioctl); | |
373 | ||
374 | if (io->flags & MAP_ACTIVE) | |
375 | exca_writeb(socket, I365_ADDRWIN, addr | enable); | |
376 | return 0; | |
377 | } | |
378 | ||
379 | static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) | |
380 | { | |
381 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
382 | struct pci_bus_region region; | |
383 | int map; | |
384 | unsigned char addr, enable; | |
385 | unsigned int start, stop, card_start; | |
386 | unsigned short word; | |
387 | ||
388 | pcibios_resource_to_bus(socket->dev, ®ion, mem->res); | |
389 | ||
390 | map = mem->map; | |
391 | start = region.start; | |
392 | stop = region.end; | |
393 | card_start = mem->card_start; | |
394 | ||
395 | if (map > 4 || start > stop || ((start ^ stop) >> 24) || | |
396 | (card_start >> 26) || mem->speed > 1000) | |
397 | return -EINVAL; | |
398 | ||
399 | enable = I365_ENA_MEM(map); | |
400 | addr = exca_readb(socket, I365_ADDRWIN); | |
401 | if (addr & enable) { | |
402 | addr &= ~enable; | |
403 | exca_writeb(socket, I365_ADDRWIN, addr); | |
404 | } | |
405 | ||
406 | exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); | |
407 | ||
408 | word = (start >> 12) & 0x0fff; | |
409 | if (mem->flags & MAP_16BIT) | |
410 | word |= I365_MEM_16BIT; | |
411 | if (mem->flags & MAP_0WS) | |
412 | word |= I365_MEM_0WS; | |
413 | exca_writew(socket, I365_MEM(map) + I365_W_START, word); | |
414 | ||
415 | word = (stop >> 12) & 0x0fff; | |
416 | switch (to_cycles(mem->speed)) { | |
417 | case 0: break; | |
418 | case 1: word |= I365_MEM_WS0; break; | |
419 | case 2: word |= I365_MEM_WS1; break; | |
420 | default: word |= I365_MEM_WS1 | I365_MEM_WS0; break; | |
421 | } | |
422 | exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); | |
423 | ||
424 | word = ((card_start - start) >> 12) & 0x3fff; | |
425 | if (mem->flags & MAP_WRPROT) | |
426 | word |= I365_MEM_WRPROT; | |
427 | if (mem->flags & MAP_ATTRIB) | |
428 | word |= I365_MEM_REG; | |
429 | exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); | |
430 | ||
431 | if (mem->flags & MAP_ACTIVE) | |
432 | exca_writeb(socket, I365_ADDRWIN, addr | enable); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | ||
fa912bcb DR |
437 | |
438 | static irqreturn_t yenta_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1da177e4 | 439 | { |
fa912bcb DR |
440 | unsigned int events; |
441 | struct yenta_socket *socket = (struct yenta_socket *) dev_id; | |
1da177e4 LT |
442 | u8 csc; |
443 | u32 cb_event; | |
1da177e4 LT |
444 | |
445 | /* Clear interrupt status for the event */ | |
446 | cb_event = cb_readl(socket, CB_SOCKET_EVENT); | |
447 | cb_writel(socket, CB_SOCKET_EVENT, cb_event); | |
448 | ||
449 | csc = exca_readb(socket, I365_CSC); | |
450 | ||
e4115805 DR |
451 | if (!(cb_event || csc)) |
452 | return IRQ_NONE; | |
453 | ||
1da177e4 LT |
454 | events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; |
455 | events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; | |
456 | if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { | |
457 | events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; | |
458 | } else { | |
459 | events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; | |
460 | events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; | |
461 | events |= (csc & I365_CSC_READY) ? SS_READY : 0; | |
462 | } | |
1da177e4 | 463 | |
fa912bcb | 464 | if (events) |
1da177e4 | 465 | pcmcia_parse_events(&socket->socket, events); |
fa912bcb | 466 | |
e4115805 | 467 | return IRQ_HANDLED; |
1da177e4 LT |
468 | } |
469 | ||
470 | static void yenta_interrupt_wrapper(unsigned long data) | |
471 | { | |
472 | struct yenta_socket *socket = (struct yenta_socket *) data; | |
473 | ||
474 | yenta_interrupt(0, (void *)socket, NULL); | |
475 | socket->poll_timer.expires = jiffies + HZ; | |
476 | add_timer(&socket->poll_timer); | |
477 | } | |
478 | ||
479 | static void yenta_clear_maps(struct yenta_socket *socket) | |
480 | { | |
481 | int i; | |
482 | struct resource res = { .start = 0, .end = 0x0fff }; | |
483 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
484 | pccard_mem_map mem = { .res = &res, }; | |
485 | ||
486 | yenta_set_socket(&socket->socket, &dead_socket); | |
487 | for (i = 0; i < 2; i++) { | |
488 | io.map = i; | |
489 | yenta_set_io_map(&socket->socket, &io); | |
490 | } | |
491 | for (i = 0; i < 5; i++) { | |
492 | mem.map = i; | |
493 | yenta_set_mem_map(&socket->socket, &mem); | |
494 | } | |
495 | } | |
496 | ||
fa912bcb DR |
497 | /* redoes voltage interrogation if required */ |
498 | static void yenta_interrogate(struct yenta_socket *socket) | |
499 | { | |
500 | u32 state; | |
501 | ||
502 | state = cb_readl(socket, CB_SOCKET_STATE); | |
503 | if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || | |
504 | (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || | |
505 | ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) | |
506 | cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); | |
507 | } | |
508 | ||
1da177e4 LT |
509 | /* Called at resume and initialization events */ |
510 | static int yenta_sock_init(struct pcmcia_socket *sock) | |
511 | { | |
512 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
1da177e4 LT |
513 | |
514 | exca_writeb(socket, I365_GBLCTL, 0x00); | |
515 | exca_writeb(socket, I365_GENCTL, 0x00); | |
516 | ||
517 | /* Redo card voltage interrogation */ | |
fa912bcb | 518 | yenta_interrogate(socket); |
1da177e4 LT |
519 | |
520 | yenta_clear_maps(socket); | |
521 | ||
522 | if (socket->type && socket->type->sock_init) | |
523 | socket->type->sock_init(socket); | |
524 | ||
525 | /* Re-enable CSC interrupts */ | |
526 | cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | static int yenta_sock_suspend(struct pcmcia_socket *sock) | |
532 | { | |
533 | struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); | |
534 | ||
535 | /* Disable CSC interrupts */ | |
536 | cb_writel(socket, CB_SOCKET_MASK, 0x0); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | /* | |
542 | * Use an adaptive allocation for the memory resource, | |
543 | * sometimes the memory behind pci bridges is limited: | |
544 | * 1/8 of the size of the io window of the parent. | |
eb0a90b4 DB |
545 | * max 4 MB, min 16 kB. We try very hard to not get below |
546 | * the "ACC" values, though. | |
1da177e4 LT |
547 | */ |
548 | #define BRIDGE_MEM_MAX 4*1024*1024 | |
eb0a90b4 | 549 | #define BRIDGE_MEM_ACC 128*1024 |
1da177e4 LT |
550 | #define BRIDGE_MEM_MIN 16*1024 |
551 | ||
eb0a90b4 DB |
552 | #define BRIDGE_IO_MAX 512 |
553 | #define BRIDGE_IO_ACC 256 | |
1da177e4 LT |
554 | #define BRIDGE_IO_MIN 32 |
555 | ||
556 | #ifndef PCIBIOS_MIN_CARDBUS_IO | |
557 | #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO | |
558 | #endif | |
559 | ||
eb0a90b4 DB |
560 | static int yenta_search_one_res(struct resource *root, struct resource *res, |
561 | u32 min) | |
562 | { | |
563 | u32 align, size, start, end; | |
564 | ||
565 | if (res->flags & IORESOURCE_IO) { | |
566 | align = 1024; | |
567 | size = BRIDGE_IO_MAX; | |
568 | start = PCIBIOS_MIN_CARDBUS_IO; | |
569 | end = ~0U; | |
570 | } else { | |
571 | unsigned long avail = root->end - root->start; | |
572 | int i; | |
573 | size = BRIDGE_MEM_MAX; | |
574 | if (size > avail/8) { | |
575 | size=(avail+1)/8; | |
576 | /* round size down to next power of 2 */ | |
577 | i = 0; | |
578 | while ((size /= 2) != 0) | |
579 | i++; | |
580 | size = 1 << i; | |
581 | } | |
582 | if (size < min) | |
583 | size = min; | |
584 | align = size; | |
585 | start = PCIBIOS_MIN_MEM; | |
586 | end = ~0U; | |
587 | } | |
588 | ||
589 | do { | |
590 | if (allocate_resource(root, res, size, start, end, align, | |
591 | NULL, NULL)==0) { | |
592 | return 1; | |
593 | } | |
594 | size = size/2; | |
595 | align = size; | |
596 | } while (size >= min); | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | ||
602 | static int yenta_search_res(struct yenta_socket *socket, struct resource *res, | |
603 | u32 min) | |
604 | { | |
605 | int i; | |
606 | for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) { | |
607 | struct resource * root = socket->dev->bus->resource[i]; | |
608 | if (!root) | |
609 | continue; | |
610 | ||
611 | if ((res->flags ^ root->flags) & | |
612 | (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) | |
613 | continue; /* Wrong type */ | |
614 | ||
615 | if (yenta_search_one_res(root, res, min)) | |
616 | return 1; | |
617 | } | |
618 | return 0; | |
619 | } | |
620 | ||
b3743fa4 | 621 | static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) |
1da177e4 | 622 | { |
1da177e4 | 623 | struct resource *root, *res; |
43c34735 | 624 | struct pci_bus_region region; |
1da177e4 LT |
625 | unsigned mask; |
626 | ||
7925407a IK |
627 | res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr; |
628 | /* Already allocated? */ | |
629 | if (res->parent) | |
b3743fa4 | 630 | return 0; |
7925407a | 631 | |
1da177e4 LT |
632 | /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ |
633 | mask = ~0xfff; | |
634 | if (type & IORESOURCE_IO) | |
635 | mask = ~3; | |
636 | ||
43c34735 | 637 | res->name = socket->dev->subordinate->name; |
1da177e4 | 638 | res->flags = type; |
1da177e4 | 639 | |
43c34735 DB |
640 | region.start = config_readl(socket, addr_start) & mask; |
641 | region.end = config_readl(socket, addr_end) | ~mask; | |
642 | if (region.start && region.end > region.start && !override_bios) { | |
643 | pcibios_bus_to_resource(socket->dev, res, ®ion); | |
862104e5 DB |
644 | root = pci_find_parent_resource(socket->dev, res); |
645 | if (root && (request_resource(root, res) == 0)) | |
b3743fa4 | 646 | return 0; |
862104e5 | 647 | printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n", |
1da177e4 | 648 | pci_name(socket->dev), nr); |
1da177e4 LT |
649 | } |
650 | ||
651 | if (type & IORESOURCE_IO) { | |
eb0a90b4 DB |
652 | if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || |
653 | (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || | |
b3743fa4 DB |
654 | (yenta_search_res(socket, res, BRIDGE_IO_MIN))) |
655 | return 1; | |
1da177e4 | 656 | } else { |
eb0a90b4 DB |
657 | if (type & IORESOURCE_PREFETCH) { |
658 | if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || | |
659 | (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || | |
b3743fa4 DB |
660 | (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
661 | return 1; | |
eb0a90b4 DB |
662 | /* Approximating prefetchable by non-prefetchable */ |
663 | res->flags = IORESOURCE_MEM; | |
1da177e4 | 664 | } |
eb0a90b4 DB |
665 | if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
666 | (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || | |
b3743fa4 DB |
667 | (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
668 | return 1; | |
eb0a90b4 DB |
669 | } |
670 | ||
1da177e4 | 671 | printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n", |
eb0a90b4 DB |
672 | pci_name(socket->dev), type); |
673 | res->start = res->end = res->flags = 0; | |
b3743fa4 | 674 | return 0; |
1da177e4 LT |
675 | } |
676 | ||
677 | /* | |
678 | * Allocate the bridge mappings for the device.. | |
679 | */ | |
680 | static void yenta_allocate_resources(struct yenta_socket *socket) | |
681 | { | |
b3743fa4 DB |
682 | int program = 0; |
683 | program += yenta_allocate_res(socket, 0, IORESOURCE_IO, | |
27879835 | 684 | PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); |
b3743fa4 | 685 | program += yenta_allocate_res(socket, 1, IORESOURCE_IO, |
27879835 | 686 | PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); |
b3743fa4 | 687 | program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH, |
27879835 | 688 | PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); |
b3743fa4 | 689 | program += yenta_allocate_res(socket, 3, IORESOURCE_MEM, |
27879835 | 690 | PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); |
b3743fa4 DB |
691 | if (program) |
692 | pci_setup_cardbus(socket->dev->subordinate); | |
1da177e4 LT |
693 | } |
694 | ||
695 | ||
696 | /* | |
697 | * Free the bridge mappings for the device.. | |
698 | */ | |
699 | static void yenta_free_resources(struct yenta_socket *socket) | |
700 | { | |
701 | int i; | |
702 | for (i=0;i<4;i++) { | |
703 | struct resource *res; | |
704 | res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i; | |
705 | if (res->start != 0 && res->end != 0) | |
706 | release_resource(res); | |
b3743fa4 | 707 | res->start = res->end = res->flags = 0; |
1da177e4 LT |
708 | } |
709 | } | |
710 | ||
711 | ||
712 | /* | |
713 | * Close it down - release our resources and go home.. | |
714 | */ | |
715 | static void yenta_close(struct pci_dev *dev) | |
716 | { | |
717 | struct yenta_socket *sock = pci_get_drvdata(dev); | |
718 | ||
030ee39c LT |
719 | /* Remove the register attributes */ |
720 | device_remove_file(&dev->dev, &dev_attr_yenta_registers); | |
721 | ||
1da177e4 LT |
722 | /* we don't want a dying socket registered */ |
723 | pcmcia_unregister_socket(&sock->socket); | |
724 | ||
725 | /* Disable all events so we don't die in an IRQ storm */ | |
726 | cb_writel(sock, CB_SOCKET_MASK, 0x0); | |
727 | exca_writeb(sock, I365_CSCINT, 0); | |
728 | ||
729 | if (sock->cb_irq) | |
730 | free_irq(sock->cb_irq, sock); | |
731 | else | |
732 | del_timer_sync(&sock->poll_timer); | |
733 | ||
734 | if (sock->base) | |
735 | iounmap(sock->base); | |
736 | yenta_free_resources(sock); | |
737 | ||
738 | pci_release_regions(dev); | |
739 | pci_disable_device(dev); | |
740 | pci_set_drvdata(dev, NULL); | |
741 | } | |
742 | ||
743 | ||
744 | static struct pccard_operations yenta_socket_operations = { | |
745 | .init = yenta_sock_init, | |
746 | .suspend = yenta_sock_suspend, | |
747 | .get_status = yenta_get_status, | |
1da177e4 LT |
748 | .set_socket = yenta_set_socket, |
749 | .set_io_map = yenta_set_io_map, | |
750 | .set_mem_map = yenta_set_mem_map, | |
751 | }; | |
752 | ||
753 | ||
63e7ebd0 | 754 | #ifdef CONFIG_YENTA_TI |
1da177e4 | 755 | #include "ti113x.h" |
63e7ebd0 DR |
756 | #endif |
757 | #ifdef CONFIG_YENTA_RICOH | |
1da177e4 | 758 | #include "ricoh.h" |
63e7ebd0 DR |
759 | #endif |
760 | #ifdef CONFIG_YENTA_TOSHIBA | |
1da177e4 | 761 | #include "topic.h" |
63e7ebd0 DR |
762 | #endif |
763 | #ifdef CONFIG_YENTA_O2 | |
1da177e4 | 764 | #include "o2micro.h" |
63e7ebd0 | 765 | #endif |
1da177e4 LT |
766 | |
767 | enum { | |
768 | CARDBUS_TYPE_DEFAULT = -1, | |
769 | CARDBUS_TYPE_TI, | |
770 | CARDBUS_TYPE_TI113X, | |
771 | CARDBUS_TYPE_TI12XX, | |
772 | CARDBUS_TYPE_TI1250, | |
773 | CARDBUS_TYPE_RICOH, | |
ea2f1590 | 774 | CARDBUS_TYPE_TOPIC95, |
1da177e4 LT |
775 | CARDBUS_TYPE_TOPIC97, |
776 | CARDBUS_TYPE_O2MICRO, | |
8c3520d4 | 777 | CARDBUS_TYPE_ENE, |
1da177e4 LT |
778 | }; |
779 | ||
780 | /* | |
781 | * Different cardbus controllers have slightly different | |
782 | * initialization sequences etc details. List them here.. | |
783 | */ | |
784 | static struct cardbus_type cardbus_type[] = { | |
63e7ebd0 | 785 | #ifdef CONFIG_YENTA_TI |
1da177e4 LT |
786 | [CARDBUS_TYPE_TI] = { |
787 | .override = ti_override, | |
788 | .save_state = ti_save_state, | |
789 | .restore_state = ti_restore_state, | |
790 | .sock_init = ti_init, | |
791 | }, | |
792 | [CARDBUS_TYPE_TI113X] = { | |
793 | .override = ti113x_override, | |
794 | .save_state = ti_save_state, | |
795 | .restore_state = ti_restore_state, | |
796 | .sock_init = ti_init, | |
797 | }, | |
798 | [CARDBUS_TYPE_TI12XX] = { | |
799 | .override = ti12xx_override, | |
800 | .save_state = ti_save_state, | |
801 | .restore_state = ti_restore_state, | |
802 | .sock_init = ti_init, | |
803 | }, | |
804 | [CARDBUS_TYPE_TI1250] = { | |
805 | .override = ti1250_override, | |
806 | .save_state = ti_save_state, | |
807 | .restore_state = ti_restore_state, | |
808 | .sock_init = ti_init, | |
809 | }, | |
63e7ebd0 DR |
810 | #endif |
811 | #ifdef CONFIG_YENTA_RICOH | |
1da177e4 LT |
812 | [CARDBUS_TYPE_RICOH] = { |
813 | .override = ricoh_override, | |
814 | .save_state = ricoh_save_state, | |
815 | .restore_state = ricoh_restore_state, | |
816 | }, | |
63e7ebd0 DR |
817 | #endif |
818 | #ifdef CONFIG_YENTA_TOSHIBA | |
ea2f1590 DR |
819 | [CARDBUS_TYPE_TOPIC95] = { |
820 | .override = topic95_override, | |
821 | }, | |
1da177e4 LT |
822 | [CARDBUS_TYPE_TOPIC97] = { |
823 | .override = topic97_override, | |
824 | }, | |
63e7ebd0 DR |
825 | #endif |
826 | #ifdef CONFIG_YENTA_O2 | |
1da177e4 LT |
827 | [CARDBUS_TYPE_O2MICRO] = { |
828 | .override = o2micro_override, | |
829 | .restore_state = o2micro_restore_state, | |
830 | }, | |
63e7ebd0 DR |
831 | #endif |
832 | #ifdef CONFIG_YENTA_TI | |
8c3520d4 DR |
833 | [CARDBUS_TYPE_ENE] = { |
834 | .override = ene_override, | |
835 | .save_state = ti_save_state, | |
836 | .restore_state = ti_restore_state, | |
837 | .sock_init = ti_init, | |
838 | }, | |
63e7ebd0 | 839 | #endif |
1da177e4 LT |
840 | }; |
841 | ||
842 | ||
843 | /* | |
844 | * Only probe "regular" interrupts, don't | |
845 | * touch dangerous spots like the mouse irq, | |
846 | * because there are mice that apparently | |
847 | * get really confused if they get fondled | |
848 | * too intimately. | |
849 | * | |
850 | * Default to 11, 10, 9, 7, 6, 5, 4, 3. | |
851 | */ | |
852 | static u32 isa_interrupts = 0x0ef8; | |
853 | ||
854 | static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) | |
855 | { | |
856 | int i; | |
857 | unsigned long val; | |
1da177e4 LT |
858 | u32 mask; |
859 | ||
1da177e4 LT |
860 | /* |
861 | * Probe for usable interrupts using the force | |
862 | * register to generate bogus card status events. | |
863 | */ | |
864 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
865 | cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); | |
866 | exca_writeb(socket, I365_CSCINT, 0); | |
867 | val = probe_irq_on() & isa_irq_mask; | |
868 | for (i = 1; i < 16; i++) { | |
869 | if (!((val >> i) & 1)) | |
870 | continue; | |
871 | exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); | |
872 | cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); | |
873 | udelay(100); | |
874 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
875 | } | |
876 | cb_writel(socket, CB_SOCKET_MASK, 0); | |
877 | exca_writeb(socket, I365_CSCINT, 0); | |
878 | ||
879 | mask = probe_irq_mask(val) & 0xffff; | |
880 | ||
1da177e4 LT |
881 | return mask; |
882 | } | |
883 | ||
884 | ||
63e7ebd0 DR |
885 | /** |
886 | * yenta PCI irq probing. | |
887 | * currently only used in the TI/EnE initialization code | |
888 | */ | |
889 | #ifdef CONFIG_YENTA_TI | |
890 | ||
1da177e4 LT |
891 | /* interrupt handler, only used during probing */ |
892 | static irqreturn_t yenta_probe_handler(int irq, void *dev_id, struct pt_regs *regs) | |
893 | { | |
894 | struct yenta_socket *socket = (struct yenta_socket *) dev_id; | |
895 | u8 csc; | |
896 | u32 cb_event; | |
897 | ||
898 | /* Clear interrupt status for the event */ | |
899 | cb_event = cb_readl(socket, CB_SOCKET_EVENT); | |
900 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
901 | csc = exca_readb(socket, I365_CSC); | |
902 | ||
903 | if (cb_event || csc) { | |
904 | socket->probe_status = 1; | |
905 | return IRQ_HANDLED; | |
906 | } | |
907 | ||
908 | return IRQ_NONE; | |
909 | } | |
910 | ||
911 | /* probes the PCI interrupt, use only on override functions */ | |
912 | static int yenta_probe_cb_irq(struct yenta_socket *socket) | |
913 | { | |
1da177e4 LT |
914 | if (!socket->cb_irq) |
915 | return -1; | |
916 | ||
917 | socket->probe_status = 0; | |
918 | ||
1da177e4 LT |
919 | if (request_irq(socket->cb_irq, yenta_probe_handler, SA_SHIRQ, "yenta", socket)) { |
920 | printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n"); | |
921 | return -1; | |
922 | } | |
923 | ||
924 | /* generate interrupt, wait */ | |
925 | exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG); | |
926 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
927 | cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); | |
928 | cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); | |
a413c090 | 929 | |
1da177e4 LT |
930 | msleep(100); |
931 | ||
932 | /* disable interrupts */ | |
933 | cb_writel(socket, CB_SOCKET_MASK, 0); | |
934 | exca_writeb(socket, I365_CSCINT, 0); | |
935 | cb_writel(socket, CB_SOCKET_EVENT, -1); | |
936 | exca_readb(socket, I365_CSC); | |
937 | ||
938 | free_irq(socket->cb_irq, socket); | |
939 | ||
940 | return (int) socket->probe_status; | |
941 | } | |
942 | ||
63e7ebd0 | 943 | #endif /* CONFIG_YENTA_TI */ |
1da177e4 LT |
944 | |
945 | ||
946 | /* | |
947 | * Set static data that doesn't need re-initializing.. | |
948 | */ | |
949 | static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) | |
950 | { | |
1da177e4 | 951 | socket->socket.pci_irq = socket->cb_irq; |
fa912bcb DR |
952 | if (isa_probe) |
953 | socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); | |
954 | else | |
955 | socket->socket.irq_mask = 0; | |
1da177e4 LT |
956 | |
957 | printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n", | |
958 | socket->socket.irq_mask, socket->cb_irq); | |
959 | } | |
960 | ||
961 | /* | |
962 | * Initialize the standard cardbus registers | |
963 | */ | |
964 | static void yenta_config_init(struct yenta_socket *socket) | |
965 | { | |
966 | u16 bridge; | |
967 | struct pci_dev *dev = socket->dev; | |
8e5d17eb | 968 | struct pci_bus_region region; |
1da177e4 | 969 | |
8e5d17eb | 970 | pcibios_resource_to_bus(socket->dev, ®ion, &dev->resource[0]); |
1da177e4 LT |
971 | |
972 | config_writel(socket, CB_LEGACY_MODE_BASE, 0); | |
8e5d17eb | 973 | config_writel(socket, PCI_BASE_ADDRESS_0, region.start); |
1da177e4 LT |
974 | config_writew(socket, PCI_COMMAND, |
975 | PCI_COMMAND_IO | | |
976 | PCI_COMMAND_MEMORY | | |
977 | PCI_COMMAND_MASTER | | |
978 | PCI_COMMAND_WAIT); | |
979 | ||
980 | /* MAGIC NUMBERS! Fixme */ | |
981 | config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); | |
982 | config_writeb(socket, PCI_LATENCY_TIMER, 168); | |
983 | config_writel(socket, PCI_PRIMARY_BUS, | |
984 | (176 << 24) | /* sec. latency timer */ | |
985 | (dev->subordinate->subordinate << 16) | /* subordinate bus */ | |
986 | (dev->subordinate->secondary << 8) | /* secondary bus */ | |
987 | dev->subordinate->primary); /* primary bus */ | |
988 | ||
989 | /* | |
990 | * Set up the bridging state: | |
991 | * - enable write posting. | |
992 | * - memory window 0 prefetchable, window 1 non-prefetchable | |
993 | * - PCI interrupts enabled if a PCI interrupt exists.. | |
994 | */ | |
995 | bridge = config_readw(socket, CB_BRIDGE_CONTROL); | |
a413c090 DR |
996 | bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); |
997 | bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; | |
1da177e4 LT |
998 | config_writew(socket, CB_BRIDGE_CONTROL, bridge); |
999 | } | |
1000 | ||
1001 | /* | |
1002 | * Initialize a cardbus controller. Make sure we have a usable | |
1003 | * interrupt, and that we can map the cardbus area. Fill in the | |
1004 | * socket information structure.. | |
1005 | */ | |
1006 | static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id) | |
1007 | { | |
1008 | struct yenta_socket *socket; | |
1009 | int ret; | |
c7fb0b35 IK |
1010 | |
1011 | /* | |
1012 | * If we failed to assign proper bus numbers for this cardbus | |
1013 | * controller during PCI probe, its subordinate pci_bus is NULL. | |
1014 | * Bail out if so. | |
1015 | */ | |
1016 | if (!dev->subordinate) { | |
5a23f347 LT |
1017 | printk(KERN_ERR "Yenta: no bus associated with %s! " |
1018 | "(try 'pci=assign-busses')\n", pci_name(dev)); | |
c7fb0b35 IK |
1019 | return -ENODEV; |
1020 | } | |
1021 | ||
8084b372 | 1022 | socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); |
1da177e4 LT |
1023 | if (!socket) |
1024 | return -ENOMEM; | |
1da177e4 LT |
1025 | |
1026 | /* prepare pcmcia_socket */ | |
1027 | socket->socket.ops = ¥ta_socket_operations; | |
1028 | socket->socket.resource_ops = &pccard_nonstatic_ops; | |
1029 | socket->socket.dev.dev = &dev->dev; | |
1030 | socket->socket.driver_data = socket; | |
1031 | socket->socket.owner = THIS_MODULE; | |
5bc6b68a RK |
1032 | socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; |
1033 | socket->socket.map_size = 0x1000; | |
1034 | socket->socket.cb_dev = dev; | |
1da177e4 LT |
1035 | |
1036 | /* prepare struct yenta_socket */ | |
1037 | socket->dev = dev; | |
1038 | pci_set_drvdata(dev, socket); | |
1039 | ||
1040 | /* | |
1041 | * Do some basic sanity checking.. | |
1042 | */ | |
1043 | if (pci_enable_device(dev)) { | |
1044 | ret = -EBUSY; | |
1045 | goto free; | |
1046 | } | |
1047 | ||
1048 | ret = pci_request_regions(dev, "yenta_socket"); | |
1049 | if (ret) | |
1050 | goto disable; | |
1051 | ||
1052 | if (!pci_resource_start(dev, 0)) { | |
1053 | printk(KERN_ERR "No cardbus resource!\n"); | |
1054 | ret = -ENODEV; | |
1055 | goto release; | |
1056 | } | |
1057 | ||
1058 | /* | |
1059 | * Ok, start setup.. Map the cardbus registers, | |
1060 | * and request the IRQ. | |
1061 | */ | |
1062 | socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); | |
1063 | if (!socket->base) { | |
1064 | ret = -ENOMEM; | |
1065 | goto release; | |
1066 | } | |
1067 | ||
1068 | /* | |
1069 | * report the subsystem vendor and device for help debugging | |
1070 | * the irq stuff... | |
1071 | */ | |
1072 | printk(KERN_INFO "Yenta: CardBus bridge found at %s [%04x:%04x]\n", | |
1073 | pci_name(dev), dev->subsystem_vendor, dev->subsystem_device); | |
1074 | ||
1075 | yenta_config_init(socket); | |
1076 | ||
1077 | /* Disable all events */ | |
1078 | cb_writel(socket, CB_SOCKET_MASK, 0x0); | |
1079 | ||
1080 | /* Set up the bridge regions.. */ | |
1081 | yenta_allocate_resources(socket); | |
1082 | ||
1083 | socket->cb_irq = dev->irq; | |
1084 | ||
1085 | /* Do we have special options for the device? */ | |
1086 | if (id->driver_data != CARDBUS_TYPE_DEFAULT && | |
1087 | id->driver_data < ARRAY_SIZE(cardbus_type)) { | |
1088 | socket->type = &cardbus_type[id->driver_data]; | |
1089 | ||
1090 | ret = socket->type->override(socket); | |
1091 | if (ret < 0) | |
1092 | goto unmap; | |
1093 | } | |
1094 | ||
1095 | /* We must finish initialization here */ | |
1096 | ||
1097 | if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, SA_SHIRQ, "yenta", socket)) { | |
1098 | /* No IRQ or request_irq failed. Poll */ | |
1099 | socket->cb_irq = 0; /* But zero is a valid IRQ number. */ | |
1100 | init_timer(&socket->poll_timer); | |
1101 | socket->poll_timer.function = yenta_interrupt_wrapper; | |
1102 | socket->poll_timer.data = (unsigned long)socket; | |
1103 | socket->poll_timer.expires = jiffies + HZ; | |
1104 | add_timer(&socket->poll_timer); | |
5bc6b68a RK |
1105 | printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n" |
1106 | KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n"); | |
1107 | } else { | |
1108 | socket->socket.features |= SS_CAP_CARDBUS; | |
1da177e4 LT |
1109 | } |
1110 | ||
1111 | /* Figure out what the dang thing can do for the PCMCIA layer... */ | |
fa912bcb | 1112 | yenta_interrogate(socket); |
1da177e4 LT |
1113 | yenta_get_socket_capabilities(socket, isa_interrupts); |
1114 | printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE)); | |
1115 | ||
1116 | /* Register it with the pcmcia layer.. */ | |
1117 | ret = pcmcia_register_socket(&socket->socket); | |
030ee39c LT |
1118 | if (ret == 0) { |
1119 | /* Add the yenta register attributes */ | |
1120 | device_create_file(&dev->dev, &dev_attr_yenta_registers); | |
1da177e4 | 1121 | goto out; |
030ee39c | 1122 | } |
1da177e4 LT |
1123 | |
1124 | unmap: | |
1125 | iounmap(socket->base); | |
1126 | release: | |
1127 | pci_release_regions(dev); | |
1128 | disable: | |
1129 | pci_disable_device(dev); | |
1130 | free: | |
1131 | kfree(socket); | |
1132 | out: | |
1133 | return ret; | |
1134 | } | |
1135 | ||
1136 | ||
1137 | static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state) | |
1138 | { | |
1139 | struct yenta_socket *socket = pci_get_drvdata(dev); | |
1140 | int ret; | |
1141 | ||
1142 | ret = pcmcia_socket_dev_suspend(&dev->dev, state); | |
1143 | ||
1144 | if (socket) { | |
1145 | if (socket->type && socket->type->save_state) | |
1146 | socket->type->save_state(socket); | |
1147 | ||
1148 | /* FIXME: pci_save_state needs to have a better interface */ | |
1149 | pci_save_state(dev); | |
1150 | pci_read_config_dword(dev, 16*4, &socket->saved_state[0]); | |
1151 | pci_read_config_dword(dev, 17*4, &socket->saved_state[1]); | |
d58da590 | 1152 | pci_disable_device(dev); |
1da177e4 LT |
1153 | |
1154 | /* | |
1155 | * Some laptops (IBM T22) do not like us putting the Cardbus | |
1156 | * bridge into D3. At a guess, some other laptop will | |
1157 | * probably require this, so leave it commented out for now. | |
1158 | */ | |
1159 | /* pci_set_power_state(dev, 3); */ | |
1160 | } | |
1161 | ||
1162 | return ret; | |
1163 | } | |
1164 | ||
1165 | ||
1166 | static int yenta_dev_resume (struct pci_dev *dev) | |
1167 | { | |
1168 | struct yenta_socket *socket = pci_get_drvdata(dev); | |
1169 | ||
1170 | if (socket) { | |
1171 | pci_set_power_state(dev, 0); | |
1172 | /* FIXME: pci_restore_state needs to have a better interface */ | |
1173 | pci_restore_state(dev); | |
1174 | pci_write_config_dword(dev, 16*4, socket->saved_state[0]); | |
1175 | pci_write_config_dword(dev, 17*4, socket->saved_state[1]); | |
d58da590 DSL |
1176 | pci_enable_device(dev); |
1177 | pci_set_master(dev); | |
1da177e4 LT |
1178 | |
1179 | if (socket->type && socket->type->restore_state) | |
1180 | socket->type->restore_state(socket); | |
1181 | } | |
1182 | ||
1183 | return pcmcia_socket_dev_resume(&dev->dev); | |
1184 | } | |
1185 | ||
1186 | ||
1187 | #define CB_ID(vend,dev,type) \ | |
1188 | { \ | |
1189 | .vendor = vend, \ | |
1190 | .device = dev, \ | |
1191 | .subvendor = PCI_ANY_ID, \ | |
1192 | .subdevice = PCI_ANY_ID, \ | |
1193 | .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ | |
1194 | .class_mask = ~0, \ | |
1195 | .driver_data = CARDBUS_TYPE_##type, \ | |
1196 | } | |
1197 | ||
1198 | static struct pci_device_id yenta_table [] = { | |
1199 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), | |
1200 | ||
1201 | /* | |
1202 | * TBD: Check if these TI variants can use more | |
1203 | * advanced overrides instead. (I can't get the | |
1204 | * data sheets for these devices. --rmk) | |
1205 | */ | |
63e7ebd0 | 1206 | #ifdef CONFIG_YENTA_TI |
1da177e4 LT |
1207 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), |
1208 | ||
1209 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), | |
1210 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), | |
1211 | ||
1212 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), | |
1213 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), | |
1214 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), | |
1215 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), | |
1216 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), | |
1217 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), | |
1218 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), | |
1219 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), | |
1220 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), | |
1221 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), | |
1222 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), | |
1223 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), | |
1224 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), | |
1225 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), | |
1226 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), | |
1227 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), | |
1228 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), | |
1229 | ||
1230 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), | |
1231 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), | |
1232 | ||
6c1a10db DR |
1233 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), |
1234 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), | |
1235 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), | |
1236 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), | |
1237 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), | |
1238 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), | |
1239 | CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), | |
1240 | ||
f9cb8b71 DR |
1241 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, TI12XX), |
1242 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, TI12XX), | |
1243 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, TI12XX), | |
1244 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, TI12XX), | |
8c3520d4 DR |
1245 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), |
1246 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), | |
1247 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), | |
1248 | CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), | |
63e7ebd0 | 1249 | #endif /* CONFIG_YENTA_TI */ |
1da177e4 | 1250 | |
63e7ebd0 | 1251 | #ifdef CONFIG_YENTA_RICOH |
1da177e4 LT |
1252 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), |
1253 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), | |
1254 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), | |
1255 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), | |
1256 | CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), | |
63e7ebd0 | 1257 | #endif |
1da177e4 | 1258 | |
63e7ebd0 | 1259 | #ifdef CONFIG_YENTA_TOSHIBA |
ea2f1590 | 1260 | CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), |
1da177e4 LT |
1261 | CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), |
1262 | CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), | |
63e7ebd0 | 1263 | #endif |
1da177e4 | 1264 | |
63e7ebd0 | 1265 | #ifdef CONFIG_YENTA_O2 |
1da177e4 | 1266 | CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), |
63e7ebd0 | 1267 | #endif |
1da177e4 LT |
1268 | |
1269 | /* match any cardbus bridge */ | |
1270 | CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), | |
1271 | { /* all zeroes */ } | |
1272 | }; | |
1273 | MODULE_DEVICE_TABLE(pci, yenta_table); | |
1274 | ||
1275 | ||
1276 | static struct pci_driver yenta_cardbus_driver = { | |
1277 | .name = "yenta_cardbus", | |
1278 | .id_table = yenta_table, | |
1279 | .probe = yenta_probe, | |
1280 | .remove = __devexit_p(yenta_close), | |
1281 | .suspend = yenta_dev_suspend, | |
1282 | .resume = yenta_dev_resume, | |
1283 | }; | |
1284 | ||
1285 | ||
1286 | static int __init yenta_socket_init(void) | |
1287 | { | |
1288 | return pci_register_driver (¥ta_cardbus_driver); | |
1289 | } | |
1290 | ||
1291 | ||
1292 | static void __exit yenta_socket_exit (void) | |
1293 | { | |
1294 | pci_unregister_driver (¥ta_cardbus_driver); | |
1295 | } | |
1296 | ||
1297 | ||
1298 | module_init(yenta_socket_init); | |
1299 | module_exit(yenta_socket_exit); | |
1300 | ||
1301 | MODULE_LICENSE("GPL"); |