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