diff options
author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2009-05-22 14:33:59 -0400 |
---|---|---|
committer | Pierre Ossman <pierre@ossman.eu> | 2009-06-13 16:42:58 -0400 |
commit | 5f5bac8272be791b67c7b7b411e7c8c5847e598a (patch) | |
tree | 30fa0cde7c7c8a879bc26f04155f254df194ea40 /drivers/mmc/host | |
parent | 8385f9cb7f12ef6a5261fa76f1a1b612280c94f7 (diff) |
mmc: Driver for CB710/720 memory card reader (MMC part)
The code is divided in two parts. There is a virtual 'bus' driver
that handles PCI device and registers three new devices one per card
reader type. The other driver handles SD/MMC part of the reader.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/Kconfig | 13 | ||||
-rw-r--r-- | drivers/mmc/host/Makefile | 1 | ||||
-rw-r--r-- | drivers/mmc/host/cb710-mmc.c | 804 | ||||
-rw-r--r-- | drivers/mmc/host/cb710-mmc.h | 104 |
4 files changed, 922 insertions, 0 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index b4cf691f3f64..75337e442da9 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig | |||
@@ -241,3 +241,16 @@ config MMC_TMIO | |||
241 | help | 241 | help |
242 | This provides support for the SD/MMC cell found in TC6393XB, | 242 | This provides support for the SD/MMC cell found in TC6393XB, |
243 | T7L66XB and also ipaq ASIC3 | 243 | T7L66XB and also ipaq ASIC3 |
244 | |||
245 | config MMC_CB710 | ||
246 | tristate "ENE CB710 MMC/SD Interface support" | ||
247 | depends on PCI | ||
248 | select CB710_CORE | ||
249 | help | ||
250 | This option enables support for MMC/SD part of ENE CB710/720 Flash | ||
251 | memory card reader found in some laptops (ie. some versions of | ||
252 | HP Compaq nx9500). | ||
253 | |||
254 | This driver can also be built as a module. If so, the module | ||
255 | will be called cb710-mmc. | ||
256 | |||
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index 970a997620e1..ce9c8b6f0f4b 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile | |||
@@ -29,4 +29,5 @@ endif | |||
29 | obj-$(CONFIG_MMC_S3C) += s3cmci.o | 29 | obj-$(CONFIG_MMC_S3C) += s3cmci.o |
30 | obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o | 30 | obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o |
31 | obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o | 31 | obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o |
32 | obj-$(CONFIG_MMC_CB710) += cb710-mmc.o | ||
32 | 33 | ||
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c new file mode 100644 index 000000000000..bc048aae7207 --- /dev/null +++ b/drivers/mmc/host/cb710-mmc.c | |||
@@ -0,0 +1,804 @@ | |||
1 | /* | ||
2 | * cb710/mmc.c | ||
3 | * | ||
4 | * Copyright by Michał Mirosław, 2008-2009 | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/module.h> | ||
12 | #include <linux/slab.h> | ||
13 | #include <linux/pci.h> | ||
14 | #include <linux/delay.h> | ||
15 | #include "cb710-mmc.h" | ||
16 | |||
17 | static const u8 cb710_clock_divider_log2[8] = { | ||
18 | /* 1, 2, 4, 8, 16, 32, 128, 512 */ | ||
19 | 0, 1, 2, 3, 4, 5, 7, 9 | ||
20 | }; | ||
21 | #define CB710_MAX_DIVIDER_IDX \ | ||
22 | (ARRAY_SIZE(cb710_clock_divider_log2) - 1) | ||
23 | |||
24 | static const u8 cb710_src_freq_mhz[16] = { | ||
25 | 33, 10, 20, 25, 30, 35, 40, 45, | ||
26 | 50, 55, 60, 65, 70, 75, 80, 85 | ||
27 | }; | ||
28 | |||
29 | static void cb710_mmc_set_clock(struct mmc_host *mmc, int hz) | ||
30 | { | ||
31 | struct cb710_slot *slot = cb710_mmc_to_slot(mmc); | ||
32 | struct pci_dev *pdev = cb710_slot_to_chip(slot)->pdev; | ||
33 | u32 src_freq_idx; | ||
34 | u32 divider_idx; | ||
35 | int src_hz; | ||
36 | |||
37 | /* this is magic, unverifiable for me, unless I get | ||
38 | * MMC card with cables connected to bus signals */ | ||
39 | pci_read_config_dword(pdev, 0x48, &src_freq_idx); | ||
40 | src_freq_idx = (src_freq_idx >> 16) & 0xF; | ||
41 | src_hz = cb710_src_freq_mhz[src_freq_idx] * 1000000; | ||
42 | |||
43 | for (divider_idx = 0; divider_idx < CB710_MAX_DIVIDER_IDX; ++divider_idx) { | ||
44 | if (hz >= src_hz >> cb710_clock_divider_log2[divider_idx]) | ||
45 | break; | ||
46 | } | ||
47 | |||
48 | if (src_freq_idx) | ||
49 | divider_idx |= 0x8; | ||
50 | |||
51 | cb710_pci_update_config_reg(pdev, 0x40, ~0xF0000000, divider_idx << 28); | ||
52 | |||
53 | dev_dbg(cb710_slot_dev(slot), | ||
54 | "clock set to %d Hz, wanted %d Hz; flag = %d\n", | ||
55 | src_hz >> cb710_clock_divider_log2[divider_idx & 7], | ||
56 | hz, (divider_idx & 8) != 0); | ||
57 | } | ||
58 | |||
59 | static void __cb710_mmc_enable_irq(struct cb710_slot *slot, | ||
60 | unsigned short enable, unsigned short mask) | ||
61 | { | ||
62 | /* clear global IE | ||
63 | * - it gets set later if any interrupt sources are enabled */ | ||
64 | mask |= CB710_MMC_IE_IRQ_ENABLE; | ||
65 | |||
66 | /* look like interrupt is fired whenever | ||
67 | * WORD[0x0C] & WORD[0x10] != 0; | ||
68 | * -> bit 15 port 0x0C seems to be global interrupt enable | ||
69 | */ | ||
70 | |||
71 | enable = (cb710_read_port_16(slot, CB710_MMC_IRQ_ENABLE_PORT) | ||
72 | & ~mask) | enable; | ||
73 | |||
74 | if (enable) | ||
75 | enable |= CB710_MMC_IE_IRQ_ENABLE; | ||
76 | |||
77 | cb710_write_port_16(slot, CB710_MMC_IRQ_ENABLE_PORT, enable); | ||
78 | } | ||
79 | |||
80 | static void cb710_mmc_enable_irq(struct cb710_slot *slot, | ||
81 | unsigned short enable, unsigned short mask) | ||
82 | { | ||
83 | struct cb710_mmc_reader *reader = mmc_priv(cb710_slot_to_mmc(slot)); | ||
84 | unsigned long flags; | ||
85 | |||
86 | spin_lock_irqsave(&reader->irq_lock, flags); | ||
87 | /* this is the only thing irq_lock protects */ | ||
88 | __cb710_mmc_enable_irq(slot, enable, mask); | ||
89 | spin_unlock_irqrestore(&reader->irq_lock, flags); | ||
90 | } | ||
91 | |||
92 | static void cb710_mmc_reset_events(struct cb710_slot *slot) | ||
93 | { | ||
94 | cb710_write_port_8(slot, CB710_MMC_STATUS0_PORT, 0xFF); | ||
95 | cb710_write_port_8(slot, CB710_MMC_STATUS1_PORT, 0xFF); | ||
96 | cb710_write_port_8(slot, CB710_MMC_STATUS2_PORT, 0xFF); | ||
97 | } | ||
98 | |||
99 | static int cb710_mmc_is_card_inserted(struct cb710_slot *slot) | ||
100 | { | ||
101 | return cb710_read_port_8(slot, CB710_MMC_STATUS3_PORT) | ||
102 | & CB710_MMC_S3_CARD_DETECTED; | ||
103 | } | ||
104 | |||
105 | static void cb710_mmc_enable_4bit_data(struct cb710_slot *slot, int enable) | ||
106 | { | ||
107 | dev_dbg(cb710_slot_dev(slot), "configuring %d-data-line%s mode\n", | ||
108 | enable ? 4 : 1, enable ? "s" : ""); | ||
109 | if (enable) | ||
110 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, | ||
111 | CB710_MMC_C1_4BIT_DATA_BUS, 0); | ||
112 | else | ||
113 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, | ||
114 | 0, CB710_MMC_C1_4BIT_DATA_BUS); | ||
115 | } | ||
116 | |||
117 | static int cb710_check_event(struct cb710_slot *slot, u8 what) | ||
118 | { | ||
119 | u16 status; | ||
120 | |||
121 | status = cb710_read_port_16(slot, CB710_MMC_STATUS_PORT); | ||
122 | |||
123 | if (status & CB710_MMC_S0_FIFO_UNDERFLOW) { | ||
124 | /* it is just a guess, so log it */ | ||
125 | dev_dbg(cb710_slot_dev(slot), | ||
126 | "CHECK : ignoring bit 6 in status %04X\n", status); | ||
127 | cb710_write_port_8(slot, CB710_MMC_STATUS0_PORT, | ||
128 | CB710_MMC_S0_FIFO_UNDERFLOW); | ||
129 | status &= ~CB710_MMC_S0_FIFO_UNDERFLOW; | ||
130 | } | ||
131 | |||
132 | if (status & CB710_MMC_STATUS_ERROR_EVENTS) { | ||
133 | dev_dbg(cb710_slot_dev(slot), | ||
134 | "CHECK : returning EIO on status %04X\n", status); | ||
135 | cb710_write_port_8(slot, CB710_MMC_STATUS0_PORT, status & 0xFF); | ||
136 | cb710_write_port_8(slot, CB710_MMC_STATUS1_PORT, | ||
137 | CB710_MMC_S1_RESET); | ||
138 | return -EIO; | ||
139 | } | ||
140 | |||
141 | /* 'what' is a bit in MMC_STATUS1 */ | ||
142 | if ((status >> 8) & what) { | ||
143 | cb710_write_port_8(slot, CB710_MMC_STATUS1_PORT, what); | ||
144 | return 1; | ||
145 | } | ||
146 | |||
147 | return 0; | ||
148 | } | ||
149 | |||
150 | static int cb710_wait_for_event(struct cb710_slot *slot, u8 what) | ||
151 | { | ||
152 | int err = 0; | ||
153 | unsigned limit = 2000000; /* FIXME: real timeout */ | ||
154 | |||
155 | #ifdef CONFIG_CB710_DEBUG | ||
156 | u32 e, x; | ||
157 | e = cb710_read_port_32(slot, CB710_MMC_STATUS_PORT); | ||
158 | #endif | ||
159 | |||
160 | while (!(err = cb710_check_event(slot, what))) { | ||
161 | if (!--limit) { | ||
162 | cb710_dump_regs(cb710_slot_to_chip(slot), | ||
163 | CB710_DUMP_REGS_MMC); | ||
164 | err = -ETIMEDOUT; | ||
165 | break; | ||
166 | } | ||
167 | udelay(1); | ||
168 | } | ||
169 | |||
170 | #ifdef CONFIG_CB710_DEBUG | ||
171 | x = cb710_read_port_32(slot, CB710_MMC_STATUS_PORT); | ||
172 | |||
173 | limit = 2000000 - limit; | ||
174 | if (limit > 100) | ||
175 | dev_dbg(cb710_slot_dev(slot), | ||
176 | "WAIT10: waited %d loops, what %d, entry val %08X, exit val %08X\n", | ||
177 | limit, what, e, x); | ||
178 | #endif | ||
179 | return err < 0 ? err : 0; | ||
180 | } | ||
181 | |||
182 | |||
183 | static int cb710_wait_while_busy(struct cb710_slot *slot, uint8_t mask) | ||
184 | { | ||
185 | unsigned limit = 500000; /* FIXME: real timeout */ | ||
186 | int err = 0; | ||
187 | |||
188 | #ifdef CONFIG_CB710_DEBUG | ||
189 | u32 e, x; | ||
190 | e = cb710_read_port_32(slot, CB710_MMC_STATUS_PORT); | ||
191 | #endif | ||
192 | |||
193 | while (cb710_read_port_8(slot, CB710_MMC_STATUS2_PORT) & mask) { | ||
194 | if (!--limit) { | ||
195 | cb710_dump_regs(cb710_slot_to_chip(slot), | ||
196 | CB710_DUMP_REGS_MMC); | ||
197 | err = -ETIMEDOUT; | ||
198 | break; | ||
199 | } | ||
200 | udelay(1); | ||
201 | } | ||
202 | |||
203 | #ifdef CONFIG_CB710_DEBUG | ||
204 | x = cb710_read_port_32(slot, CB710_MMC_STATUS_PORT); | ||
205 | |||
206 | limit = 500000 - limit; | ||
207 | if (limit > 100) | ||
208 | dev_dbg(cb710_slot_dev(slot), | ||
209 | "WAIT12: waited %d loops, mask %02X, entry val %08X, exit val %08X\n", | ||
210 | limit, mask, e, x); | ||
211 | #endif | ||
212 | return 0; | ||
213 | } | ||
214 | |||
215 | static void cb710_mmc_set_transfer_size(struct cb710_slot *slot, | ||
216 | size_t count, size_t blocksize) | ||
217 | { | ||
218 | cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
219 | cb710_write_port_32(slot, CB710_MMC_TRANSFER_SIZE_PORT, | ||
220 | ((count - 1) << 16)|(blocksize - 1)); | ||
221 | |||
222 | dev_vdbg(cb710_slot_dev(slot), "set up for %d block%s of %d bytes\n", | ||
223 | count, count == 1 ? "" : "s", blocksize); | ||
224 | } | ||
225 | |||
226 | static void cb710_mmc_fifo_hack(struct cb710_slot *slot) | ||
227 | { | ||
228 | /* without this, received data is prepended with 8-bytes of zeroes */ | ||
229 | u32 r1, r2; | ||
230 | int ok = 0; | ||
231 | |||
232 | r1 = cb710_read_port_32(slot, CB710_MMC_DATA_PORT); | ||
233 | r2 = cb710_read_port_32(slot, CB710_MMC_DATA_PORT); | ||
234 | if (cb710_read_port_8(slot, CB710_MMC_STATUS0_PORT) | ||
235 | & CB710_MMC_S0_FIFO_UNDERFLOW) { | ||
236 | cb710_write_port_8(slot, CB710_MMC_STATUS0_PORT, | ||
237 | CB710_MMC_S0_FIFO_UNDERFLOW); | ||
238 | ok = 1; | ||
239 | } | ||
240 | |||
241 | dev_dbg(cb710_slot_dev(slot), | ||
242 | "FIFO-read-hack: expected STATUS0 bit was %s\n", | ||
243 | ok ? "set." : "NOT SET!"); | ||
244 | dev_dbg(cb710_slot_dev(slot), | ||
245 | "FIFO-read-hack: dwords ignored: %08X %08X - %s\n", | ||
246 | r1, r2, (r1|r2) ? "BAD (NOT ZERO)!" : "ok"); | ||
247 | } | ||
248 | |||
249 | static int cb710_mmc_receive_pio(struct cb710_slot *slot, | ||
250 | struct sg_mapping_iter *miter, size_t dw_count) | ||
251 | { | ||
252 | if (!(cb710_read_port_8(slot, CB710_MMC_STATUS2_PORT) & CB710_MMC_S2_FIFO_READY)) { | ||
253 | int err = cb710_wait_for_event(slot, | ||
254 | CB710_MMC_S1_PIO_TRANSFER_DONE); | ||
255 | if (err) | ||
256 | return err; | ||
257 | } | ||
258 | |||
259 | cb710_sg_dwiter_write_from_io(miter, | ||
260 | slot->iobase + CB710_MMC_DATA_PORT, dw_count); | ||
261 | |||
262 | return 0; | ||
263 | } | ||
264 | |||
265 | static bool cb710_is_transfer_size_supported(struct mmc_data *data) | ||
266 | { | ||
267 | return !(data->blksz & 15 && (data->blocks != 1 || data->blksz != 8)); | ||
268 | } | ||
269 | |||
270 | static int cb710_mmc_receive(struct cb710_slot *slot, struct mmc_data *data) | ||
271 | { | ||
272 | struct sg_mapping_iter miter; | ||
273 | size_t len, blocks = data->blocks; | ||
274 | int err = 0; | ||
275 | |||
276 | /* TODO: I don't know how/if the hardware handles non-16B-boundary blocks | ||
277 | * except single 8B block */ | ||
278 | if (unlikely(data->blksz & 15 && (data->blocks != 1 || data->blksz != 8))) | ||
279 | return -EINVAL; | ||
280 | |||
281 | sg_miter_start(&miter, data->sg, data->sg_len, 0); | ||
282 | |||
283 | cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, | ||
284 | 15, CB710_MMC_C2_READ_PIO_SIZE_MASK); | ||
285 | |||
286 | cb710_mmc_fifo_hack(slot); | ||
287 | |||
288 | while (blocks-- > 0) { | ||
289 | len = data->blksz; | ||
290 | |||
291 | while (len >= 16) { | ||
292 | err = cb710_mmc_receive_pio(slot, &miter, 4); | ||
293 | if (err) | ||
294 | goto out; | ||
295 | len -= 16; | ||
296 | } | ||
297 | |||
298 | if (!len) | ||
299 | continue; | ||
300 | |||
301 | cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, | ||
302 | len - 1, CB710_MMC_C2_READ_PIO_SIZE_MASK); | ||
303 | |||
304 | len = (len >= 8) ? 4 : 2; | ||
305 | err = cb710_mmc_receive_pio(slot, &miter, len); | ||
306 | if (err) | ||
307 | goto out; | ||
308 | } | ||
309 | out: | ||
310 | cb710_sg_miter_stop_writing(&miter); | ||
311 | return err; | ||
312 | } | ||
313 | |||
314 | static int cb710_mmc_send(struct cb710_slot *slot, struct mmc_data *data) | ||
315 | { | ||
316 | struct sg_mapping_iter miter; | ||
317 | size_t len, blocks = data->blocks; | ||
318 | int err = 0; | ||
319 | |||
320 | /* TODO: I don't know how/if the hardware handles multiple | ||
321 | * non-16B-boundary blocks */ | ||
322 | if (unlikely(data->blocks > 1 && data->blksz & 15)) | ||
323 | return -EINVAL; | ||
324 | |||
325 | sg_miter_start(&miter, data->sg, data->sg_len, 0); | ||
326 | |||
327 | cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, | ||
328 | 0, CB710_MMC_C2_READ_PIO_SIZE_MASK); | ||
329 | |||
330 | while (blocks-- > 0) { | ||
331 | len = (data->blksz + 15) >> 4; | ||
332 | do { | ||
333 | if (!(cb710_read_port_8(slot, CB710_MMC_STATUS2_PORT) | ||
334 | & CB710_MMC_S2_FIFO_EMPTY)) { | ||
335 | err = cb710_wait_for_event(slot, | ||
336 | CB710_MMC_S1_PIO_TRANSFER_DONE); | ||
337 | if (err) | ||
338 | goto out; | ||
339 | } | ||
340 | cb710_sg_dwiter_read_to_io(&miter, | ||
341 | slot->iobase + CB710_MMC_DATA_PORT, 4); | ||
342 | } while (--len); | ||
343 | } | ||
344 | out: | ||
345 | sg_miter_stop(&miter); | ||
346 | return err; | ||
347 | } | ||
348 | |||
349 | static u16 cb710_encode_cmd_flags(struct cb710_mmc_reader *reader, | ||
350 | struct mmc_command *cmd) | ||
351 | { | ||
352 | unsigned int flags = cmd->flags; | ||
353 | u16 cb_flags = 0; | ||
354 | |||
355 | /* Windows driver returned 0 for commands for which no response | ||
356 | * is expected. It happened that there were only two such commands | ||
357 | * used: MMC_GO_IDLE_STATE and MMC_GO_INACTIVE_STATE so it might | ||
358 | * as well be a bug in that driver. | ||
359 | * | ||
360 | * Original driver set bit 14 for MMC/SD application | ||
361 | * commands. There's no difference 'on the wire' and | ||
362 | * it apparently works without it anyway. | ||
363 | */ | ||
364 | |||
365 | switch (flags & MMC_CMD_MASK) { | ||
366 | case MMC_CMD_AC: cb_flags = CB710_MMC_CMD_AC; break; | ||
367 | case MMC_CMD_ADTC: cb_flags = CB710_MMC_CMD_ADTC; break; | ||
368 | case MMC_CMD_BC: cb_flags = CB710_MMC_CMD_BC; break; | ||
369 | case MMC_CMD_BCR: cb_flags = CB710_MMC_CMD_BCR; break; | ||
370 | } | ||
371 | |||
372 | if (flags & MMC_RSP_BUSY) | ||
373 | cb_flags |= CB710_MMC_RSP_BUSY; | ||
374 | |||
375 | cb_flags |= cmd->opcode << CB710_MMC_CMD_CODE_SHIFT; | ||
376 | |||
377 | if (cmd->data && (cmd->data->flags & MMC_DATA_READ)) | ||
378 | cb_flags |= CB710_MMC_DATA_READ; | ||
379 | |||
380 | if (flags & MMC_RSP_PRESENT) { | ||
381 | /* Windows driver set 01 at bits 4,3 except for | ||
382 | * MMC_SET_BLOCKLEN where it set 10. Maybe the | ||
383 | * hardware can do something special about this | ||
384 | * command? The original driver looks buggy/incomplete | ||
385 | * anyway so we ignore this for now. | ||
386 | * | ||
387 | * I assume that 00 here means no response is expected. | ||
388 | */ | ||
389 | cb_flags |= CB710_MMC_RSP_PRESENT; | ||
390 | |||
391 | if (flags & MMC_RSP_136) | ||
392 | cb_flags |= CB710_MMC_RSP_136; | ||
393 | if (!(flags & MMC_RSP_CRC)) | ||
394 | cb_flags |= CB710_MMC_RSP_NO_CRC; | ||
395 | } | ||
396 | |||
397 | return cb_flags; | ||
398 | } | ||
399 | |||
400 | static void cb710_receive_response(struct cb710_slot *slot, | ||
401 | struct mmc_command *cmd) | ||
402 | { | ||
403 | unsigned rsp_opcode, wanted_opcode; | ||
404 | |||
405 | /* Looks like final byte with CRC is always stripped (same as SDHCI) */ | ||
406 | if (cmd->flags & MMC_RSP_136) { | ||
407 | u32 resp[4]; | ||
408 | |||
409 | resp[0] = cb710_read_port_32(slot, CB710_MMC_RESPONSE3_PORT); | ||
410 | resp[1] = cb710_read_port_32(slot, CB710_MMC_RESPONSE2_PORT); | ||
411 | resp[2] = cb710_read_port_32(slot, CB710_MMC_RESPONSE1_PORT); | ||
412 | resp[3] = cb710_read_port_32(slot, CB710_MMC_RESPONSE0_PORT); | ||
413 | rsp_opcode = resp[0] >> 24; | ||
414 | |||
415 | cmd->resp[0] = (resp[0] << 8)|(resp[1] >> 24); | ||
416 | cmd->resp[1] = (resp[1] << 8)|(resp[2] >> 24); | ||
417 | cmd->resp[2] = (resp[2] << 8)|(resp[3] >> 24); | ||
418 | cmd->resp[3] = (resp[3] << 8); | ||
419 | } else { | ||
420 | rsp_opcode = cb710_read_port_32(slot, CB710_MMC_RESPONSE1_PORT) & 0x3F; | ||
421 | cmd->resp[0] = cb710_read_port_32(slot, CB710_MMC_RESPONSE0_PORT); | ||
422 | } | ||
423 | |||
424 | wanted_opcode = (cmd->flags & MMC_RSP_OPCODE) ? cmd->opcode : 0x3F; | ||
425 | if (rsp_opcode != wanted_opcode) | ||
426 | cmd->error = -EILSEQ; | ||
427 | } | ||
428 | |||
429 | static int cb710_mmc_transfer_data(struct cb710_slot *slot, | ||
430 | struct mmc_data *data) | ||
431 | { | ||
432 | int error, to; | ||
433 | |||
434 | if (data->flags & MMC_DATA_READ) | ||
435 | error = cb710_mmc_receive(slot, data); | ||
436 | else | ||
437 | error = cb710_mmc_send(slot, data); | ||
438 | |||
439 | to = cb710_wait_for_event(slot, CB710_MMC_S1_DATA_TRANSFER_DONE); | ||
440 | if (!error) | ||
441 | error = to; | ||
442 | |||
443 | if (!error) | ||
444 | data->bytes_xfered = data->blksz * data->blocks; | ||
445 | return error; | ||
446 | } | ||
447 | |||
448 | static int cb710_mmc_command(struct mmc_host *mmc, struct mmc_command *cmd) | ||
449 | { | ||
450 | struct cb710_slot *slot = cb710_mmc_to_slot(mmc); | ||
451 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
452 | struct mmc_data *data = cmd->data; | ||
453 | |||
454 | u16 cb_cmd = cb710_encode_cmd_flags(reader, cmd); | ||
455 | dev_dbg(cb710_slot_dev(slot), "cmd request: 0x%04X\n", cb_cmd); | ||
456 | |||
457 | if (data) { | ||
458 | if (!cb710_is_transfer_size_supported(data)) { | ||
459 | data->error = -EINVAL; | ||
460 | return -1; | ||
461 | } | ||
462 | cb710_mmc_set_transfer_size(slot, data->blocks, data->blksz); | ||
463 | } | ||
464 | |||
465 | cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20|CB710_MMC_S2_BUSY_10); | ||
466 | cb710_write_port_16(slot, CB710_MMC_CMD_TYPE_PORT, cb_cmd); | ||
467 | cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
468 | cb710_write_port_32(slot, CB710_MMC_CMD_PARAM_PORT, cmd->arg); | ||
469 | cb710_mmc_reset_events(slot); | ||
470 | cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
471 | cb710_modify_port_8(slot, CB710_MMC_CONFIG0_PORT, 0x01, 0); | ||
472 | |||
473 | cmd->error = cb710_wait_for_event(slot, CB710_MMC_S1_COMMAND_SENT); | ||
474 | if (cmd->error) | ||
475 | return -1; | ||
476 | |||
477 | if (cmd->flags & MMC_RSP_PRESENT) { | ||
478 | cb710_receive_response(slot, cmd); | ||
479 | if (cmd->error) | ||
480 | return -1; | ||
481 | } | ||
482 | |||
483 | if (data) | ||
484 | data->error = cb710_mmc_transfer_data(slot, data); | ||
485 | return 0; | ||
486 | } | ||
487 | |||
488 | static void cb710_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) | ||
489 | { | ||
490 | struct cb710_slot *slot = cb710_mmc_to_slot(mmc); | ||
491 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
492 | |||
493 | WARN_ON(reader->mrq != NULL); | ||
494 | |||
495 | reader->mrq = mrq; | ||
496 | cb710_mmc_enable_irq(slot, CB710_MMC_IE_TEST_MASK, 0); | ||
497 | |||
498 | if (cb710_mmc_is_card_inserted(slot)) { | ||
499 | if (!cb710_mmc_command(mmc, mrq->cmd) && mrq->stop) | ||
500 | cb710_mmc_command(mmc, mrq->stop); | ||
501 | mdelay(1); | ||
502 | } else { | ||
503 | mrq->cmd->error = -ENOMEDIUM; | ||
504 | } | ||
505 | |||
506 | tasklet_schedule(&reader->finish_req_tasklet); | ||
507 | } | ||
508 | |||
509 | static int cb710_mmc_powerup(struct cb710_slot *slot) | ||
510 | { | ||
511 | #ifdef CONFIG_CB710_DEBUG | ||
512 | struct cb710_chip *chip = cb710_slot_to_chip(slot); | ||
513 | #endif | ||
514 | int err; | ||
515 | |||
516 | /* a lot of magic; see comment in cb710_mmc_set_clock() */ | ||
517 | dev_dbg(cb710_slot_dev(slot), "bus powerup\n"); | ||
518 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
519 | err = cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
520 | if (unlikely(err)) | ||
521 | return err; | ||
522 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, 0x80, 0); | ||
523 | cb710_modify_port_8(slot, CB710_MMC_CONFIG3_PORT, 0x80, 0); | ||
524 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
525 | mdelay(1); | ||
526 | dev_dbg(cb710_slot_dev(slot), "after delay 1\n"); | ||
527 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
528 | err = cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
529 | if (unlikely(err)) | ||
530 | return err; | ||
531 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, 0x09, 0); | ||
532 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
533 | mdelay(1); | ||
534 | dev_dbg(cb710_slot_dev(slot), "after delay 2\n"); | ||
535 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
536 | err = cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
537 | if (unlikely(err)) | ||
538 | return err; | ||
539 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, 0, 0x08); | ||
540 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
541 | mdelay(2); | ||
542 | dev_dbg(cb710_slot_dev(slot), "after delay 3\n"); | ||
543 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
544 | cb710_modify_port_8(slot, CB710_MMC_CONFIG0_PORT, 0x06, 0); | ||
545 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, 0x70, 0); | ||
546 | cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, 0x80, 0); | ||
547 | cb710_modify_port_8(slot, CB710_MMC_CONFIG3_PORT, 0x03, 0); | ||
548 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
549 | err = cb710_wait_while_busy(slot, CB710_MMC_S2_BUSY_20); | ||
550 | if (unlikely(err)) | ||
551 | return err; | ||
552 | /* This port behaves weird: quick byte reads of 0x08,0x09 return | ||
553 | * 0xFF,0x00 after writing 0xFFFF to 0x08; it works correctly when | ||
554 | * read/written from userspace... What am I missing here? | ||
555 | * (it doesn't depend on write-to-read delay) */ | ||
556 | cb710_write_port_16(slot, CB710_MMC_CONFIGB_PORT, 0xFFFF); | ||
557 | cb710_modify_port_8(slot, CB710_MMC_CONFIG0_PORT, 0x06, 0); | ||
558 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
559 | dev_dbg(cb710_slot_dev(slot), "bus powerup finished\n"); | ||
560 | |||
561 | return cb710_check_event(slot, 0); | ||
562 | } | ||
563 | |||
564 | static void cb710_mmc_powerdown(struct cb710_slot *slot) | ||
565 | { | ||
566 | cb710_modify_port_8(slot, CB710_MMC_CONFIG1_PORT, 0, 0x81); | ||
567 | cb710_modify_port_8(slot, CB710_MMC_CONFIG3_PORT, 0, 0x80); | ||
568 | } | ||
569 | |||
570 | static void cb710_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) | ||
571 | { | ||
572 | struct cb710_slot *slot = cb710_mmc_to_slot(mmc); | ||
573 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
574 | int err; | ||
575 | |||
576 | cb710_mmc_set_clock(mmc, ios->clock); | ||
577 | |||
578 | if (!cb710_mmc_is_card_inserted(slot)) { | ||
579 | dev_dbg(cb710_slot_dev(slot), | ||
580 | "no card inserted - ignoring bus powerup request\n"); | ||
581 | ios->power_mode = MMC_POWER_OFF; | ||
582 | } | ||
583 | |||
584 | if (ios->power_mode != reader->last_power_mode) | ||
585 | switch (ios->power_mode) { | ||
586 | case MMC_POWER_ON: | ||
587 | err = cb710_mmc_powerup(slot); | ||
588 | if (err) { | ||
589 | dev_warn(cb710_slot_dev(slot), | ||
590 | "powerup failed (%d)- retrying\n", err); | ||
591 | cb710_mmc_powerdown(slot); | ||
592 | udelay(1); | ||
593 | err = cb710_mmc_powerup(slot); | ||
594 | if (err) | ||
595 | dev_warn(cb710_slot_dev(slot), | ||
596 | "powerup retry failed (%d) - expect errors\n", | ||
597 | err); | ||
598 | } | ||
599 | reader->last_power_mode = MMC_POWER_ON; | ||
600 | break; | ||
601 | case MMC_POWER_OFF: | ||
602 | cb710_mmc_powerdown(slot); | ||
603 | reader->last_power_mode = MMC_POWER_OFF; | ||
604 | break; | ||
605 | case MMC_POWER_UP: | ||
606 | default: | ||
607 | /* ignore */; | ||
608 | } | ||
609 | |||
610 | cb710_mmc_enable_4bit_data(slot, ios->bus_width != MMC_BUS_WIDTH_1); | ||
611 | |||
612 | cb710_mmc_enable_irq(slot, CB710_MMC_IE_TEST_MASK, 0); | ||
613 | } | ||
614 | |||
615 | static int cb710_mmc_get_ro(struct mmc_host *mmc) | ||
616 | { | ||
617 | struct cb710_slot *slot = cb710_mmc_to_slot(mmc); | ||
618 | |||
619 | return cb710_read_port_8(slot, CB710_MMC_STATUS3_PORT) | ||
620 | & CB710_MMC_S3_WRITE_PROTECTED; | ||
621 | } | ||
622 | |||
623 | static int cb710_mmc_irq_handler(struct cb710_slot *slot) | ||
624 | { | ||
625 | struct mmc_host *mmc = cb710_slot_to_mmc(slot); | ||
626 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
627 | u32 status, config1, config2, irqen; | ||
628 | |||
629 | status = cb710_read_port_32(slot, CB710_MMC_STATUS_PORT); | ||
630 | irqen = cb710_read_port_32(slot, CB710_MMC_IRQ_ENABLE_PORT); | ||
631 | config2 = cb710_read_port_32(slot, CB710_MMC_CONFIGB_PORT); | ||
632 | config1 = cb710_read_port_32(slot, CB710_MMC_CONFIG_PORT); | ||
633 | |||
634 | dev_dbg(cb710_slot_dev(slot), "interrupt; status: %08X, " | ||
635 | "ie: %08X, c2: %08X, c1: %08X\n", | ||
636 | status, irqen, config2, config1); | ||
637 | |||
638 | if (status & (CB710_MMC_S1_CARD_CHANGED << 8)) { | ||
639 | /* ack the event */ | ||
640 | cb710_write_port_8(slot, CB710_MMC_STATUS1_PORT, | ||
641 | CB710_MMC_S1_CARD_CHANGED); | ||
642 | if ((irqen & CB710_MMC_IE_CISTATUS_MASK) | ||
643 | == CB710_MMC_IE_CISTATUS_MASK) | ||
644 | mmc_detect_change(mmc, HZ/5); | ||
645 | } else { | ||
646 | dev_dbg(cb710_slot_dev(slot), "unknown interrupt (test)\n"); | ||
647 | spin_lock(&reader->irq_lock); | ||
648 | __cb710_mmc_enable_irq(slot, 0, CB710_MMC_IE_TEST_MASK); | ||
649 | spin_unlock(&reader->irq_lock); | ||
650 | } | ||
651 | |||
652 | return 1; | ||
653 | } | ||
654 | |||
655 | static void cb710_mmc_finish_request_tasklet(unsigned long data) | ||
656 | { | ||
657 | struct mmc_host *mmc = (void *)data; | ||
658 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
659 | struct mmc_request *mrq = reader->mrq; | ||
660 | |||
661 | reader->mrq = NULL; | ||
662 | mmc_request_done(mmc, mrq); | ||
663 | } | ||
664 | |||
665 | static const struct mmc_host_ops cb710_mmc_host = { | ||
666 | .request = cb710_mmc_request, | ||
667 | .set_ios = cb710_mmc_set_ios, | ||
668 | .get_ro = cb710_mmc_get_ro | ||
669 | }; | ||
670 | |||
671 | #ifdef CONFIG_PM | ||
672 | |||
673 | static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state) | ||
674 | { | ||
675 | struct cb710_slot *slot = cb710_pdev_to_slot(pdev); | ||
676 | struct mmc_host *mmc = cb710_slot_to_mmc(slot); | ||
677 | int err; | ||
678 | |||
679 | err = mmc_suspend_host(mmc, state); | ||
680 | if (err) | ||
681 | return err; | ||
682 | |||
683 | cb710_mmc_enable_irq(slot, 0, ~0); | ||
684 | return 0; | ||
685 | } | ||
686 | |||
687 | static int cb710_mmc_resume(struct platform_device *pdev) | ||
688 | { | ||
689 | struct cb710_slot *slot = cb710_pdev_to_slot(pdev); | ||
690 | struct mmc_host *mmc = cb710_slot_to_mmc(slot); | ||
691 | |||
692 | cb710_mmc_enable_irq(slot, 0, ~0); | ||
693 | |||
694 | return mmc_resume_host(mmc); | ||
695 | } | ||
696 | |||
697 | #endif /* CONFIG_PM */ | ||
698 | |||
699 | static int __devinit cb710_mmc_init(struct platform_device *pdev) | ||
700 | { | ||
701 | struct cb710_slot *slot = cb710_pdev_to_slot(pdev); | ||
702 | struct cb710_chip *chip = cb710_slot_to_chip(slot); | ||
703 | struct mmc_host *mmc; | ||
704 | struct cb710_mmc_reader *reader; | ||
705 | int err; | ||
706 | u32 val; | ||
707 | |||
708 | mmc = mmc_alloc_host(sizeof(*reader), cb710_slot_dev(slot)); | ||
709 | if (!mmc) | ||
710 | return -ENOMEM; | ||
711 | |||
712 | dev_set_drvdata(&pdev->dev, mmc); | ||
713 | |||
714 | /* harmless (maybe) magic */ | ||
715 | pci_read_config_dword(chip->pdev, 0x48, &val); | ||
716 | val = cb710_src_freq_mhz[(val >> 16) & 0xF]; | ||
717 | dev_dbg(cb710_slot_dev(slot), "source frequency: %dMHz\n", val); | ||
718 | val *= 1000000; | ||
719 | |||
720 | mmc->ops = &cb710_mmc_host; | ||
721 | mmc->f_max = val; | ||
722 | mmc->f_min = val >> cb710_clock_divider_log2[CB710_MAX_DIVIDER_IDX]; | ||
723 | mmc->ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34; | ||
724 | mmc->caps = MMC_CAP_4_BIT_DATA; | ||
725 | |||
726 | reader = mmc_priv(mmc); | ||
727 | |||
728 | tasklet_init(&reader->finish_req_tasklet, | ||
729 | cb710_mmc_finish_request_tasklet, (unsigned long)mmc); | ||
730 | spin_lock_init(&reader->irq_lock); | ||
731 | cb710_dump_regs(chip, CB710_DUMP_REGS_MMC); | ||
732 | |||
733 | cb710_mmc_enable_irq(slot, 0, ~0); | ||
734 | cb710_set_irq_handler(slot, cb710_mmc_irq_handler); | ||
735 | |||
736 | err = mmc_add_host(mmc); | ||
737 | if (unlikely(err)) | ||
738 | goto err_free_mmc; | ||
739 | |||
740 | dev_dbg(cb710_slot_dev(slot), "mmc_hostname is %s\n", | ||
741 | mmc_hostname(mmc)); | ||
742 | |||
743 | cb710_mmc_enable_irq(slot, CB710_MMC_IE_CARD_INSERTION_STATUS, 0); | ||
744 | |||
745 | return 0; | ||
746 | |||
747 | err_free_mmc: | ||
748 | dev_dbg(cb710_slot_dev(slot), "mmc_add_host() failed: %d\n", err); | ||
749 | |||
750 | mmc_free_host(mmc); | ||
751 | return err; | ||
752 | } | ||
753 | |||
754 | static int __devexit cb710_mmc_exit(struct platform_device *pdev) | ||
755 | { | ||
756 | struct cb710_slot *slot = cb710_pdev_to_slot(pdev); | ||
757 | struct mmc_host *mmc = cb710_slot_to_mmc(slot); | ||
758 | struct cb710_mmc_reader *reader = mmc_priv(mmc); | ||
759 | |||
760 | cb710_mmc_enable_irq(slot, 0, CB710_MMC_IE_CARD_INSERTION_STATUS); | ||
761 | |||
762 | mmc_remove_host(mmc); | ||
763 | |||
764 | /* IRQs should be disabled now, but let's stay on the safe side */ | ||
765 | cb710_mmc_enable_irq(slot, 0, ~0); | ||
766 | cb710_set_irq_handler(slot, NULL); | ||
767 | |||
768 | /* clear config ports - just in case */ | ||
769 | cb710_write_port_32(slot, CB710_MMC_CONFIG_PORT, 0); | ||
770 | cb710_write_port_16(slot, CB710_MMC_CONFIGB_PORT, 0); | ||
771 | |||
772 | tasklet_kill(&reader->finish_req_tasklet); | ||
773 | |||
774 | mmc_free_host(mmc); | ||
775 | return 0; | ||
776 | } | ||
777 | |||
778 | static struct platform_driver cb710_mmc_driver = { | ||
779 | .driver.name = "cb710-mmc", | ||
780 | .probe = cb710_mmc_init, | ||
781 | .remove = __devexit_p(cb710_mmc_exit), | ||
782 | #ifdef CONFIG_PM | ||
783 | .suspend = cb710_mmc_suspend, | ||
784 | .resume = cb710_mmc_resume, | ||
785 | #endif | ||
786 | }; | ||
787 | |||
788 | static int __init cb710_mmc_init_module(void) | ||
789 | { | ||
790 | return platform_driver_register(&cb710_mmc_driver); | ||
791 | } | ||
792 | |||
793 | static void __exit cb710_mmc_cleanup_module(void) | ||
794 | { | ||
795 | platform_driver_unregister(&cb710_mmc_driver); | ||
796 | } | ||
797 | |||
798 | module_init(cb710_mmc_init_module); | ||
799 | module_exit(cb710_mmc_cleanup_module); | ||
800 | |||
801 | MODULE_AUTHOR("Michał Mirosław <mirq-linux@rere.qmqm.pl>"); | ||
802 | MODULE_DESCRIPTION("ENE CB710 memory card reader driver - MMC/SD part"); | ||
803 | MODULE_LICENSE("GPL"); | ||
804 | MODULE_ALIAS("platform:cb710-mmc"); | ||
diff --git a/drivers/mmc/host/cb710-mmc.h b/drivers/mmc/host/cb710-mmc.h new file mode 100644 index 000000000000..e845c776bdd7 --- /dev/null +++ b/drivers/mmc/host/cb710-mmc.h | |||
@@ -0,0 +1,104 @@ | |||
1 | /* | ||
2 | * cb710/cb710-mmc.h | ||
3 | * | ||
4 | * Copyright by Michał Mirosław, 2008-2009 | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #ifndef LINUX_CB710_MMC_H | ||
11 | #define LINUX_CB710_MMC_H | ||
12 | |||
13 | #include <linux/cb710.h> | ||
14 | |||
15 | /* per-MMC-reader structure */ | ||
16 | struct cb710_mmc_reader { | ||
17 | struct tasklet_struct finish_req_tasklet; | ||
18 | struct mmc_request *mrq; | ||
19 | spinlock_t irq_lock; | ||
20 | unsigned char last_power_mode; | ||
21 | }; | ||
22 | |||
23 | /* some device struct walking */ | ||
24 | |||
25 | static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot) | ||
26 | { | ||
27 | return dev_get_drvdata(&slot->pdev.dev); | ||
28 | } | ||
29 | |||
30 | static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc) | ||
31 | { | ||
32 | struct platform_device *pdev = container_of(mmc_dev(mmc), | ||
33 | struct platform_device, dev); | ||
34 | return cb710_pdev_to_slot(pdev); | ||
35 | } | ||
36 | |||
37 | /* registers (this might be all wrong ;) */ | ||
38 | |||
39 | #define CB710_MMC_DATA_PORT 0x00 | ||
40 | |||
41 | #define CB710_MMC_CONFIG_PORT 0x04 | ||
42 | #define CB710_MMC_CONFIG0_PORT 0x04 | ||
43 | #define CB710_MMC_CONFIG1_PORT 0x05 | ||
44 | #define CB710_MMC_C1_4BIT_DATA_BUS 0x40 | ||
45 | #define CB710_MMC_CONFIG2_PORT 0x06 | ||
46 | #define CB710_MMC_C2_READ_PIO_SIZE_MASK 0x0F /* N-1 */ | ||
47 | #define CB710_MMC_CONFIG3_PORT 0x07 | ||
48 | |||
49 | #define CB710_MMC_CONFIGB_PORT 0x08 | ||
50 | |||
51 | #define CB710_MMC_IRQ_ENABLE_PORT 0x0C | ||
52 | #define CB710_MMC_IE_TEST_MASK 0x00BF | ||
53 | #define CB710_MMC_IE_CARD_INSERTION_STATUS 0x1000 | ||
54 | #define CB710_MMC_IE_IRQ_ENABLE 0x8000 | ||
55 | #define CB710_MMC_IE_CISTATUS_MASK \ | ||
56 | (CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE) | ||
57 | |||
58 | #define CB710_MMC_STATUS_PORT 0x10 | ||
59 | #define CB710_MMC_STATUS_ERROR_EVENTS 0x60FF | ||
60 | #define CB710_MMC_STATUS0_PORT 0x10 | ||
61 | #define CB710_MMC_S0_FIFO_UNDERFLOW 0x40 | ||
62 | #define CB710_MMC_STATUS1_PORT 0x11 | ||
63 | #define CB710_MMC_S1_COMMAND_SENT 0x01 | ||
64 | #define CB710_MMC_S1_DATA_TRANSFER_DONE 0x02 | ||
65 | #define CB710_MMC_S1_PIO_TRANSFER_DONE 0x04 | ||
66 | #define CB710_MMC_S1_CARD_CHANGED 0x10 | ||
67 | #define CB710_MMC_S1_RESET 0x20 | ||
68 | #define CB710_MMC_STATUS2_PORT 0x12 | ||
69 | #define CB710_MMC_S2_FIFO_READY 0x01 | ||
70 | #define CB710_MMC_S2_FIFO_EMPTY 0x02 | ||
71 | #define CB710_MMC_S2_BUSY_10 0x10 | ||
72 | #define CB710_MMC_S2_BUSY_20 0x20 | ||
73 | #define CB710_MMC_STATUS3_PORT 0x13 | ||
74 | #define CB710_MMC_S3_CARD_DETECTED 0x02 | ||
75 | #define CB710_MMC_S3_WRITE_PROTECTED 0x04 | ||
76 | |||
77 | #define CB710_MMC_CMD_TYPE_PORT 0x14 | ||
78 | #define CB710_MMC_RSP_TYPE_MASK 0x0007 | ||
79 | #define CB710_MMC_RSP_R1 (0) | ||
80 | #define CB710_MMC_RSP_136 (5) | ||
81 | #define CB710_MMC_RSP_NO_CRC (2) | ||
82 | #define CB710_MMC_RSP_PRESENT_MASK 0x0018 | ||
83 | #define CB710_MMC_RSP_NONE (0 << 3) | ||
84 | #define CB710_MMC_RSP_PRESENT (1 << 3) | ||
85 | #define CB710_MMC_RSP_PRESENT_X (2 << 3) | ||
86 | #define CB710_MMC_CMD_TYPE_MASK 0x0060 | ||
87 | #define CB710_MMC_CMD_BC (0 << 5) | ||
88 | #define CB710_MMC_CMD_BCR (1 << 5) | ||
89 | #define CB710_MMC_CMD_AC (2 << 5) | ||
90 | #define CB710_MMC_CMD_ADTC (3 << 5) | ||
91 | #define CB710_MMC_DATA_READ 0x0080 | ||
92 | #define CB710_MMC_CMD_CODE_MASK 0x3F00 | ||
93 | #define CB710_MMC_CMD_CODE_SHIFT 8 | ||
94 | #define CB710_MMC_IS_APP_CMD 0x4000 | ||
95 | #define CB710_MMC_RSP_BUSY 0x8000 | ||
96 | |||
97 | #define CB710_MMC_CMD_PARAM_PORT 0x18 | ||
98 | #define CB710_MMC_TRANSFER_SIZE_PORT 0x1C | ||
99 | #define CB710_MMC_RESPONSE0_PORT 0x20 | ||
100 | #define CB710_MMC_RESPONSE1_PORT 0x24 | ||
101 | #define CB710_MMC_RESPONSE2_PORT 0x28 | ||
102 | #define CB710_MMC_RESPONSE3_PORT 0x2C | ||
103 | |||
104 | #endif /* LINUX_CB710_MMC_H */ | ||