diff options
author | Paul Mackerras <paulus@samba.org> | 2005-10-30 21:37:12 -0500 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2005-10-30 21:37:12 -0500 |
commit | 23fd07750a789a66fe88cf173d52a18f1a387da4 (patch) | |
tree | 06fdd6df35fdb835abdaa9b754d62f6b84b97250 /drivers/ide/mips/au1xxx-ide.c | |
parent | bd787d438a59266af3c9f6351644c85ef1dd21fe (diff) | |
parent | ed28f96ac1960f30f818374d65be71d2fdf811b0 (diff) |
Merge ../linux-2.6 by hand
Diffstat (limited to 'drivers/ide/mips/au1xxx-ide.c')
-rw-r--r-- | drivers/ide/mips/au1xxx-ide.c | 1250 |
1 files changed, 1250 insertions, 0 deletions
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c new file mode 100644 index 000000000000..2b6327c576b9 --- /dev/null +++ b/drivers/ide/mips/au1xxx-ide.c | |||
@@ -0,0 +1,1250 @@ | |||
1 | /* | ||
2 | * linux/drivers/ide/mips/au1xxx-ide.c version 01.30.00 Aug. 02 2005 | ||
3 | * | ||
4 | * BRIEF MODULE DESCRIPTION | ||
5 | * AMD Alchemy Au1xxx IDE interface routines over the Static Bus | ||
6 | * | ||
7 | * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify it under | ||
10 | * the terms of the GNU General Public License as published by the Free Software | ||
11 | * Foundation; either version 2 of the License, or (at your option) any later | ||
12 | * version. | ||
13 | * | ||
14 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
15 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR | ||
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
23 | * POSSIBILITY OF SUCH DAMAGE. | ||
24 | * | ||
25 | * You should have received a copy of the GNU General Public License along with | ||
26 | * this program; if not, write to the Free Software Foundation, Inc., | ||
27 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
28 | * | ||
29 | * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE | ||
30 | * Interface and Linux Device Driver" Application Note. | ||
31 | */ | ||
32 | #undef REALLY_SLOW_IO /* most systems can safely undef this */ | ||
33 | |||
34 | #include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */ | ||
35 | #include <linux/types.h> | ||
36 | #include <linux/module.h> | ||
37 | #include <linux/kernel.h> | ||
38 | #include <linux/delay.h> | ||
39 | #include <linux/timer.h> | ||
40 | #include <linux/mm.h> | ||
41 | #include <linux/ioport.h> | ||
42 | #include <linux/hdreg.h> | ||
43 | #include <linux/init.h> | ||
44 | #include <linux/ide.h> | ||
45 | #include <linux/sysdev.h> | ||
46 | |||
47 | #include <linux/dma-mapping.h> | ||
48 | |||
49 | #include <asm/io.h> | ||
50 | #include <asm/mach-au1x00/au1xxx.h> | ||
51 | #include <asm/mach-au1x00/au1xxx_dbdma.h> | ||
52 | |||
53 | #if CONFIG_PM | ||
54 | #include <asm/mach-au1x00/au1xxx_pm.h> | ||
55 | #endif | ||
56 | |||
57 | #include <asm/mach-au1x00/au1xxx_ide.h> | ||
58 | |||
59 | #define DRV_NAME "au1200-ide" | ||
60 | #define DRV_VERSION "1.0" | ||
61 | #define DRV_AUTHOR "AMD PCS / Pete Popov <ppopov@embeddedalley.com>" | ||
62 | #define DRV_DESC "Au1200 IDE" | ||
63 | |||
64 | static _auide_hwif auide_hwif; | ||
65 | static spinlock_t ide_tune_drive_spin_lock = SPIN_LOCK_UNLOCKED; | ||
66 | static spinlock_t ide_tune_chipset_spin_lock = SPIN_LOCK_UNLOCKED; | ||
67 | static int dbdma_init_done = 0; | ||
68 | |||
69 | /* | ||
70 | * local I/O functions | ||
71 | */ | ||
72 | u8 auide_inb(unsigned long port) | ||
73 | { | ||
74 | return (au_readb(port)); | ||
75 | } | ||
76 | |||
77 | u16 auide_inw(unsigned long port) | ||
78 | { | ||
79 | return (au_readw(port)); | ||
80 | } | ||
81 | |||
82 | u32 auide_inl(unsigned long port) | ||
83 | { | ||
84 | return (au_readl(port)); | ||
85 | } | ||
86 | |||
87 | void auide_insw(unsigned long port, void *addr, u32 count) | ||
88 | { | ||
89 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) | ||
90 | |||
91 | _auide_hwif *ahwif = &auide_hwif; | ||
92 | chan_tab_t *ctp; | ||
93 | au1x_ddma_desc_t *dp; | ||
94 | |||
95 | if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1, | ||
96 | DDMA_FLAGS_NOIE)) { | ||
97 | printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); | ||
98 | return; | ||
99 | } | ||
100 | ctp = *((chan_tab_t **)ahwif->rx_chan); | ||
101 | dp = ctp->cur_ptr; | ||
102 | while (dp->dscr_cmd0 & DSCR_CMD0_V) | ||
103 | ; | ||
104 | ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); | ||
105 | #else | ||
106 | while (count--) | ||
107 | { | ||
108 | *(u16 *)addr = au_readw(port); | ||
109 | addr +=2 ; | ||
110 | } | ||
111 | #endif | ||
112 | } | ||
113 | |||
114 | void auide_insl(unsigned long port, void *addr, u32 count) | ||
115 | { | ||
116 | while (count--) | ||
117 | { | ||
118 | *(u32 *)addr = au_readl(port); | ||
119 | /* NOTE: For IDE interfaces over PCMCIA, | ||
120 | * 32-bit access does not work | ||
121 | */ | ||
122 | addr += 4; | ||
123 | } | ||
124 | } | ||
125 | |||
126 | void auide_outb(u8 addr, unsigned long port) | ||
127 | { | ||
128 | return (au_writeb(addr, port)); | ||
129 | } | ||
130 | |||
131 | void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port) | ||
132 | { | ||
133 | return (au_writeb(addr, port)); | ||
134 | } | ||
135 | |||
136 | void auide_outw(u16 addr, unsigned long port) | ||
137 | { | ||
138 | return (au_writew(addr, port)); | ||
139 | } | ||
140 | |||
141 | void auide_outl(u32 addr, unsigned long port) | ||
142 | { | ||
143 | return (au_writel(addr, port)); | ||
144 | } | ||
145 | |||
146 | void auide_outsw(unsigned long port, void *addr, u32 count) | ||
147 | { | ||
148 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) | ||
149 | _auide_hwif *ahwif = &auide_hwif; | ||
150 | chan_tab_t *ctp; | ||
151 | au1x_ddma_desc_t *dp; | ||
152 | |||
153 | if(!put_source_flags(ahwif->tx_chan, (void*)addr, | ||
154 | count << 1, DDMA_FLAGS_NOIE)) { | ||
155 | printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); | ||
156 | return; | ||
157 | } | ||
158 | ctp = *((chan_tab_t **)ahwif->tx_chan); | ||
159 | dp = ctp->cur_ptr; | ||
160 | while (dp->dscr_cmd0 & DSCR_CMD0_V) | ||
161 | ; | ||
162 | ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); | ||
163 | #else | ||
164 | while (count--) | ||
165 | { | ||
166 | au_writew(*(u16 *)addr, port); | ||
167 | addr += 2; | ||
168 | } | ||
169 | #endif | ||
170 | } | ||
171 | |||
172 | void auide_outsl(unsigned long port, void *addr, u32 count) | ||
173 | { | ||
174 | while (count--) | ||
175 | { | ||
176 | au_writel(*(u32 *)addr, port); | ||
177 | /* NOTE: For IDE interfaces over PCMCIA, | ||
178 | * 32-bit access does not work | ||
179 | */ | ||
180 | addr += 4; | ||
181 | } | ||
182 | } | ||
183 | |||
184 | static void auide_tune_drive(ide_drive_t *drive, byte pio) | ||
185 | { | ||
186 | int mem_sttime; | ||
187 | int mem_stcfg; | ||
188 | unsigned long flags; | ||
189 | u8 speed; | ||
190 | |||
191 | /* get the best pio mode for the drive */ | ||
192 | pio = ide_get_best_pio_mode(drive, pio, 4, NULL); | ||
193 | |||
194 | printk("%s: setting Au1XXX IDE to PIO mode%d\n", | ||
195 | drive->name, pio); | ||
196 | |||
197 | spin_lock_irqsave(&ide_tune_drive_spin_lock, flags); | ||
198 | |||
199 | mem_sttime = 0; | ||
200 | mem_stcfg = au_readl(MEM_STCFG2); | ||
201 | |||
202 | /* set pio mode! */ | ||
203 | switch(pio) { | ||
204 | case 0: | ||
205 | /* set timing parameters for RCS2# */ | ||
206 | mem_sttime = SBC_IDE_PIO0_TWCS | ||
207 | | SBC_IDE_PIO0_TCSH | ||
208 | | SBC_IDE_PIO0_TCSOFF | ||
209 | | SBC_IDE_PIO0_TWP | ||
210 | | SBC_IDE_PIO0_TCSW | ||
211 | | SBC_IDE_PIO0_TPM | ||
212 | | SBC_IDE_PIO0_TA; | ||
213 | /* set configuration for RCS2# */ | ||
214 | mem_stcfg |= TS_MASK; | ||
215 | mem_stcfg &= ~TCSOE_MASK; | ||
216 | mem_stcfg &= ~TOECS_MASK; | ||
217 | mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; | ||
218 | |||
219 | au_writel(mem_sttime,MEM_STTIME2); | ||
220 | au_writel(mem_stcfg,MEM_STCFG2); | ||
221 | break; | ||
222 | |||
223 | case 1: | ||
224 | /* set timing parameters for RCS2# */ | ||
225 | mem_sttime = SBC_IDE_PIO1_TWCS | ||
226 | | SBC_IDE_PIO1_TCSH | ||
227 | | SBC_IDE_PIO1_TCSOFF | ||
228 | | SBC_IDE_PIO1_TWP | ||
229 | | SBC_IDE_PIO1_TCSW | ||
230 | | SBC_IDE_PIO1_TPM | ||
231 | | SBC_IDE_PIO1_TA; | ||
232 | /* set configuration for RCS2# */ | ||
233 | mem_stcfg |= TS_MASK; | ||
234 | mem_stcfg &= ~TCSOE_MASK; | ||
235 | mem_stcfg &= ~TOECS_MASK; | ||
236 | mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; | ||
237 | break; | ||
238 | |||
239 | case 2: | ||
240 | /* set timing parameters for RCS2# */ | ||
241 | mem_sttime = SBC_IDE_PIO2_TWCS | ||
242 | | SBC_IDE_PIO2_TCSH | ||
243 | | SBC_IDE_PIO2_TCSOFF | ||
244 | | SBC_IDE_PIO2_TWP | ||
245 | | SBC_IDE_PIO2_TCSW | ||
246 | | SBC_IDE_PIO2_TPM | ||
247 | | SBC_IDE_PIO2_TA; | ||
248 | /* set configuration for RCS2# */ | ||
249 | mem_stcfg &= ~TS_MASK; | ||
250 | mem_stcfg &= ~TCSOE_MASK; | ||
251 | mem_stcfg &= ~TOECS_MASK; | ||
252 | mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; | ||
253 | break; | ||
254 | |||
255 | case 3: | ||
256 | /* set timing parameters for RCS2# */ | ||
257 | mem_sttime = SBC_IDE_PIO3_TWCS | ||
258 | | SBC_IDE_PIO3_TCSH | ||
259 | | SBC_IDE_PIO3_TCSOFF | ||
260 | | SBC_IDE_PIO3_TWP | ||
261 | | SBC_IDE_PIO3_TCSW | ||
262 | | SBC_IDE_PIO3_TPM | ||
263 | | SBC_IDE_PIO3_TA; | ||
264 | /* set configuration for RCS2# */ | ||
265 | mem_stcfg |= TS_MASK; | ||
266 | mem_stcfg &= ~TS_MASK; | ||
267 | mem_stcfg &= ~TCSOE_MASK; | ||
268 | mem_stcfg &= ~TOECS_MASK; | ||
269 | mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; | ||
270 | |||
271 | break; | ||
272 | |||
273 | case 4: | ||
274 | /* set timing parameters for RCS2# */ | ||
275 | mem_sttime = SBC_IDE_PIO4_TWCS | ||
276 | | SBC_IDE_PIO4_TCSH | ||
277 | | SBC_IDE_PIO4_TCSOFF | ||
278 | | SBC_IDE_PIO4_TWP | ||
279 | | SBC_IDE_PIO4_TCSW | ||
280 | | SBC_IDE_PIO4_TPM | ||
281 | | SBC_IDE_PIO4_TA; | ||
282 | /* set configuration for RCS2# */ | ||
283 | mem_stcfg &= ~TS_MASK; | ||
284 | mem_stcfg &= ~TCSOE_MASK; | ||
285 | mem_stcfg &= ~TOECS_MASK; | ||
286 | mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; | ||
287 | break; | ||
288 | } | ||
289 | |||
290 | au_writel(mem_sttime,MEM_STTIME2); | ||
291 | au_writel(mem_stcfg,MEM_STCFG2); | ||
292 | |||
293 | spin_unlock_irqrestore(&ide_tune_drive_spin_lock, flags); | ||
294 | |||
295 | speed = pio + XFER_PIO_0; | ||
296 | ide_config_drive_speed(drive, speed); | ||
297 | } | ||
298 | |||
299 | static int auide_tune_chipset (ide_drive_t *drive, u8 speed) | ||
300 | { | ||
301 | u8 mode = 0; | ||
302 | int mem_sttime; | ||
303 | int mem_stcfg; | ||
304 | unsigned long flags; | ||
305 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
306 | struct hd_driveid *id = drive->id; | ||
307 | |||
308 | /* | ||
309 | * Now see what the current drive is capable of, | ||
310 | * selecting UDMA only if the mate said it was ok. | ||
311 | */ | ||
312 | if (id && (id->capability & 1) && drive->autodma && | ||
313 | !__ide_dma_bad_drive(drive)) { | ||
314 | if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) { | ||
315 | if (id->dma_mword & 4) | ||
316 | mode = XFER_MW_DMA_2; | ||
317 | else if (id->dma_mword & 2) | ||
318 | mode = XFER_MW_DMA_1; | ||
319 | else if (id->dma_mword & 1) | ||
320 | mode = XFER_MW_DMA_0; | ||
321 | } | ||
322 | } | ||
323 | #endif | ||
324 | |||
325 | spin_lock_irqsave(&ide_tune_chipset_spin_lock, flags); | ||
326 | |||
327 | mem_sttime = 0; | ||
328 | mem_stcfg = au_readl(MEM_STCFG2); | ||
329 | |||
330 | switch(speed) { | ||
331 | case XFER_PIO_4: | ||
332 | case XFER_PIO_3: | ||
333 | case XFER_PIO_2: | ||
334 | case XFER_PIO_1: | ||
335 | case XFER_PIO_0: | ||
336 | auide_tune_drive(drive, (speed - XFER_PIO_0)); | ||
337 | break; | ||
338 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
339 | case XFER_MW_DMA_2: | ||
340 | /* set timing parameters for RCS2# */ | ||
341 | mem_sttime = SBC_IDE_MDMA2_TWCS | ||
342 | | SBC_IDE_MDMA2_TCSH | ||
343 | | SBC_IDE_MDMA2_TCSOFF | ||
344 | | SBC_IDE_MDMA2_TWP | ||
345 | | SBC_IDE_MDMA2_TCSW | ||
346 | | SBC_IDE_MDMA2_TPM | ||
347 | | SBC_IDE_MDMA2_TA; | ||
348 | /* set configuration for RCS2# */ | ||
349 | mem_stcfg &= ~TS_MASK; | ||
350 | mem_stcfg &= ~TCSOE_MASK; | ||
351 | mem_stcfg &= ~TOECS_MASK; | ||
352 | mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; | ||
353 | |||
354 | mode = XFER_MW_DMA_2; | ||
355 | break; | ||
356 | case XFER_MW_DMA_1: | ||
357 | /* set timing parameters for RCS2# */ | ||
358 | mem_sttime = SBC_IDE_MDMA1_TWCS | ||
359 | | SBC_IDE_MDMA1_TCSH | ||
360 | | SBC_IDE_MDMA1_TCSOFF | ||
361 | | SBC_IDE_MDMA1_TWP | ||
362 | | SBC_IDE_MDMA1_TCSW | ||
363 | | SBC_IDE_MDMA1_TPM | ||
364 | | SBC_IDE_MDMA1_TA; | ||
365 | /* set configuration for RCS2# */ | ||
366 | mem_stcfg &= ~TS_MASK; | ||
367 | mem_stcfg &= ~TCSOE_MASK; | ||
368 | mem_stcfg &= ~TOECS_MASK; | ||
369 | mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; | ||
370 | |||
371 | mode = XFER_MW_DMA_1; | ||
372 | break; | ||
373 | case XFER_MW_DMA_0: | ||
374 | /* set timing parameters for RCS2# */ | ||
375 | mem_sttime = SBC_IDE_MDMA0_TWCS | ||
376 | | SBC_IDE_MDMA0_TCSH | ||
377 | | SBC_IDE_MDMA0_TCSOFF | ||
378 | | SBC_IDE_MDMA0_TWP | ||
379 | | SBC_IDE_MDMA0_TCSW | ||
380 | | SBC_IDE_MDMA0_TPM | ||
381 | | SBC_IDE_MDMA0_TA; | ||
382 | /* set configuration for RCS2# */ | ||
383 | mem_stcfg |= TS_MASK; | ||
384 | mem_stcfg &= ~TCSOE_MASK; | ||
385 | mem_stcfg &= ~TOECS_MASK; | ||
386 | mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; | ||
387 | |||
388 | mode = XFER_MW_DMA_0; | ||
389 | break; | ||
390 | #endif | ||
391 | default: | ||
392 | return 1; | ||
393 | } | ||
394 | |||
395 | /* | ||
396 | * Tell the drive to switch to the new mode; abort on failure. | ||
397 | */ | ||
398 | if (!mode || ide_config_drive_speed(drive, mode)) | ||
399 | { | ||
400 | return 1; /* failure */ | ||
401 | } | ||
402 | |||
403 | |||
404 | au_writel(mem_sttime,MEM_STTIME2); | ||
405 | au_writel(mem_stcfg,MEM_STCFG2); | ||
406 | |||
407 | spin_unlock_irqrestore(&ide_tune_chipset_spin_lock, flags); | ||
408 | |||
409 | return 0; | ||
410 | } | ||
411 | |||
412 | /* | ||
413 | * Multi-Word DMA + DbDMA functions | ||
414 | */ | ||
415 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
416 | |||
417 | static int in_drive_list(struct hd_driveid *id, | ||
418 | const struct drive_list_entry *drive_table) | ||
419 | { | ||
420 | for ( ; drive_table->id_model ; drive_table++){ | ||
421 | if ((!strcmp(drive_table->id_model, id->model)) && | ||
422 | ((strstr(drive_table->id_firmware, id->fw_rev)) || | ||
423 | (!strcmp(drive_table->id_firmware, "ALL"))) | ||
424 | ) | ||
425 | return 1; | ||
426 | } | ||
427 | return 0; | ||
428 | } | ||
429 | |||
430 | static int auide_build_sglist(ide_drive_t *drive, struct request *rq) | ||
431 | { | ||
432 | ide_hwif_t *hwif = drive->hwif; | ||
433 | _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; | ||
434 | struct scatterlist *sg = hwif->sg_table; | ||
435 | |||
436 | ide_map_sg(drive, rq); | ||
437 | |||
438 | if (rq_data_dir(rq) == READ) | ||
439 | hwif->sg_dma_direction = DMA_FROM_DEVICE; | ||
440 | else | ||
441 | hwif->sg_dma_direction = DMA_TO_DEVICE; | ||
442 | |||
443 | return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, | ||
444 | hwif->sg_dma_direction); | ||
445 | } | ||
446 | |||
447 | static int auide_build_dmatable(ide_drive_t *drive) | ||
448 | { | ||
449 | int i, iswrite, count = 0; | ||
450 | ide_hwif_t *hwif = HWIF(drive); | ||
451 | |||
452 | struct request *rq = HWGROUP(drive)->rq; | ||
453 | |||
454 | _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; | ||
455 | struct scatterlist *sg; | ||
456 | |||
457 | iswrite = (rq_data_dir(rq) == WRITE); | ||
458 | /* Save for interrupt context */ | ||
459 | ahwif->drive = drive; | ||
460 | |||
461 | /* Build sglist */ | ||
462 | hwif->sg_nents = i = auide_build_sglist(drive, rq); | ||
463 | |||
464 | if (!i) | ||
465 | return 0; | ||
466 | |||
467 | /* fill the descriptors */ | ||
468 | sg = hwif->sg_table; | ||
469 | while (i && sg_dma_len(sg)) { | ||
470 | u32 cur_addr; | ||
471 | u32 cur_len; | ||
472 | |||
473 | cur_addr = sg_dma_address(sg); | ||
474 | cur_len = sg_dma_len(sg); | ||
475 | |||
476 | while (cur_len) { | ||
477 | u32 flags = DDMA_FLAGS_NOIE; | ||
478 | unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; | ||
479 | |||
480 | if (++count >= PRD_ENTRIES) { | ||
481 | printk(KERN_WARNING "%s: DMA table too small\n", | ||
482 | drive->name); | ||
483 | goto use_pio_instead; | ||
484 | } | ||
485 | |||
486 | /* Lets enable intr for the last descriptor only */ | ||
487 | if (1==i) | ||
488 | flags = DDMA_FLAGS_IE; | ||
489 | else | ||
490 | flags = DDMA_FLAGS_NOIE; | ||
491 | |||
492 | if (iswrite) { | ||
493 | if(!put_source_flags(ahwif->tx_chan, | ||
494 | (void*)(page_address(sg->page) | ||
495 | + sg->offset), | ||
496 | tc, flags)) { | ||
497 | printk(KERN_ERR "%s failed %d\n", | ||
498 | __FUNCTION__, __LINE__); | ||
499 | } | ||
500 | } else | ||
501 | { | ||
502 | if(!put_dest_flags(ahwif->rx_chan, | ||
503 | (void*)(page_address(sg->page) | ||
504 | + sg->offset), | ||
505 | tc, flags)) { | ||
506 | printk(KERN_ERR "%s failed %d\n", | ||
507 | __FUNCTION__, __LINE__); | ||
508 | } | ||
509 | } | ||
510 | |||
511 | cur_addr += tc; | ||
512 | cur_len -= tc; | ||
513 | } | ||
514 | sg++; | ||
515 | i--; | ||
516 | } | ||
517 | |||
518 | if (count) | ||
519 | return 1; | ||
520 | |||
521 | use_pio_instead: | ||
522 | dma_unmap_sg(ahwif->dev, | ||
523 | hwif->sg_table, | ||
524 | hwif->sg_nents, | ||
525 | hwif->sg_dma_direction); | ||
526 | |||
527 | return 0; /* revert to PIO for this request */ | ||
528 | } | ||
529 | |||
530 | static int auide_dma_end(ide_drive_t *drive) | ||
531 | { | ||
532 | ide_hwif_t *hwif = HWIF(drive); | ||
533 | _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; | ||
534 | |||
535 | if (hwif->sg_nents) { | ||
536 | dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, | ||
537 | hwif->sg_dma_direction); | ||
538 | hwif->sg_nents = 0; | ||
539 | } | ||
540 | |||
541 | return 0; | ||
542 | } | ||
543 | |||
544 | static void auide_dma_start(ide_drive_t *drive ) | ||
545 | { | ||
546 | // printk("%s\n", __FUNCTION__); | ||
547 | } | ||
548 | |||
549 | ide_startstop_t auide_dma_intr(ide_drive_t *drive) | ||
550 | { | ||
551 | //printk("%s\n", __FUNCTION__); | ||
552 | |||
553 | u8 stat = 0, dma_stat = 0; | ||
554 | |||
555 | dma_stat = HWIF(drive)->ide_dma_end(drive); | ||
556 | stat = HWIF(drive)->INB(IDE_STATUS_REG); /* get drive status */ | ||
557 | if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) { | ||
558 | if (!dma_stat) { | ||
559 | struct request *rq = HWGROUP(drive)->rq; | ||
560 | |||
561 | ide_end_request(drive, 1, rq->nr_sectors); | ||
562 | return ide_stopped; | ||
563 | } | ||
564 | printk(KERN_ERR "%s: dma_intr: bad DMA status (dma_stat=%x)\n", | ||
565 | drive->name, dma_stat); | ||
566 | } | ||
567 | return ide_error(drive, "dma_intr", stat); | ||
568 | } | ||
569 | |||
570 | static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command) | ||
571 | { | ||
572 | //printk("%s\n", __FUNCTION__); | ||
573 | |||
574 | /* issue cmd to drive */ | ||
575 | ide_execute_command(drive, command, &auide_dma_intr, | ||
576 | (2*WAIT_CMD), NULL); | ||
577 | } | ||
578 | |||
579 | static int auide_dma_setup(ide_drive_t *drive) | ||
580 | { | ||
581 | // printk("%s\n", __FUNCTION__); | ||
582 | |||
583 | if (drive->media != ide_disk) | ||
584 | return 1; | ||
585 | |||
586 | if (!auide_build_dmatable(drive)) | ||
587 | /* try PIO instead of DMA */ | ||
588 | return 1; | ||
589 | |||
590 | drive->waiting_for_dma = 1; | ||
591 | |||
592 | return 0; | ||
593 | } | ||
594 | |||
595 | static int auide_dma_check(ide_drive_t *drive) | ||
596 | { | ||
597 | // printk("%s\n", __FUNCTION__); | ||
598 | |||
599 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
600 | if( !dbdma_init_done ){ | ||
601 | auide_hwif.white_list = in_drive_list(drive->id, | ||
602 | dma_white_list); | ||
603 | auide_hwif.black_list = in_drive_list(drive->id, | ||
604 | dma_black_list); | ||
605 | auide_hwif.drive = drive; | ||
606 | auide_ddma_init(&auide_hwif); | ||
607 | dbdma_init_done = 1; | ||
608 | } | ||
609 | #endif | ||
610 | |||
611 | /* Is the drive in our DMA black list? */ | ||
612 | if ( auide_hwif.black_list ) { | ||
613 | drive->using_dma = 0; | ||
614 | printk("%s found in dma_blacklist[]! Disabling DMA.\n", | ||
615 | drive->id->model); | ||
616 | } | ||
617 | else | ||
618 | drive->using_dma = 1; | ||
619 | |||
620 | return HWIF(drive)->ide_dma_host_on(drive); | ||
621 | } | ||
622 | |||
623 | static int auide_dma_test_irq(ide_drive_t *drive) | ||
624 | { | ||
625 | // printk("%s\n", __FUNCTION__); | ||
626 | |||
627 | if (!drive->waiting_for_dma) | ||
628 | printk(KERN_WARNING "%s: ide_dma_test_irq \ | ||
629 | called while not waiting\n", drive->name); | ||
630 | |||
631 | /* If dbdma didn't execute the STOP command yet, the | ||
632 | * active bit is still set | ||
633 | */ | ||
634 | drive->waiting_for_dma++; | ||
635 | if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) { | ||
636 | printk(KERN_WARNING "%s: timeout waiting for ddma to \ | ||
637 | complete\n", drive->name); | ||
638 | return 1; | ||
639 | } | ||
640 | udelay(10); | ||
641 | return 0; | ||
642 | } | ||
643 | |||
644 | static int auide_dma_host_on(ide_drive_t *drive) | ||
645 | { | ||
646 | // printk("%s\n", __FUNCTION__); | ||
647 | return 0; | ||
648 | } | ||
649 | |||
650 | static int auide_dma_on(ide_drive_t *drive) | ||
651 | { | ||
652 | // printk("%s\n", __FUNCTION__); | ||
653 | drive->using_dma = 1; | ||
654 | return auide_dma_host_on(drive); | ||
655 | } | ||
656 | |||
657 | |||
658 | static int auide_dma_host_off(ide_drive_t *drive) | ||
659 | { | ||
660 | // printk("%s\n", __FUNCTION__); | ||
661 | return 0; | ||
662 | } | ||
663 | |||
664 | static int auide_dma_off_quietly(ide_drive_t *drive) | ||
665 | { | ||
666 | // printk("%s\n", __FUNCTION__); | ||
667 | drive->using_dma = 0; | ||
668 | return auide_dma_host_off(drive); | ||
669 | } | ||
670 | |||
671 | static int auide_dma_lostirq(ide_drive_t *drive) | ||
672 | { | ||
673 | // printk("%s\n", __FUNCTION__); | ||
674 | |||
675 | printk(KERN_ERR "%s: IRQ lost\n", drive->name); | ||
676 | return 0; | ||
677 | } | ||
678 | |||
679 | static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs) | ||
680 | { | ||
681 | // printk("%s\n", __FUNCTION__); | ||
682 | |||
683 | _auide_hwif *ahwif = (_auide_hwif*)param; | ||
684 | ahwif->drive->waiting_for_dma = 0; | ||
685 | return; | ||
686 | } | ||
687 | |||
688 | static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs) | ||
689 | { | ||
690 | // printk("%s\n", __FUNCTION__); | ||
691 | |||
692 | _auide_hwif *ahwif = (_auide_hwif*)param; | ||
693 | ahwif->drive->waiting_for_dma = 0; | ||
694 | return; | ||
695 | } | ||
696 | |||
697 | static int auide_dma_timeout(ide_drive_t *drive) | ||
698 | { | ||
699 | // printk("%s\n", __FUNCTION__); | ||
700 | |||
701 | printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name); | ||
702 | |||
703 | if (HWIF(drive)->ide_dma_test_irq(drive)) | ||
704 | return 0; | ||
705 | |||
706 | return HWIF(drive)->ide_dma_end(drive); | ||
707 | } | ||
708 | #endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ | ||
709 | |||
710 | |||
711 | static int auide_ddma_init( _auide_hwif *auide ) | ||
712 | { | ||
713 | // printk("%s\n", __FUNCTION__); | ||
714 | |||
715 | dbdev_tab_t source_dev_tab; | ||
716 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) | ||
717 | dbdev_tab_t target_dev_tab; | ||
718 | ide_hwif_t *hwif = auide->hwif; | ||
719 | char warning_output [2][80]; | ||
720 | int i; | ||
721 | #endif | ||
722 | |||
723 | /* Add our custom device to DDMA device table */ | ||
724 | /* Create our new device entries in the table */ | ||
725 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) | ||
726 | source_dev_tab.dev_id = AU1XXX_ATA_DDMA_REQ; | ||
727 | |||
728 | if( auide->white_list || auide->black_list ){ | ||
729 | source_dev_tab.dev_tsize = 8; | ||
730 | source_dev_tab.dev_devwidth = 32; | ||
731 | source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; | ||
732 | source_dev_tab.dev_intlevel = 0; | ||
733 | source_dev_tab.dev_intpolarity = 0; | ||
734 | |||
735 | /* init device table for target - static bus controller - */ | ||
736 | target_dev_tab.dev_id = DSCR_CMD0_ALWAYS; | ||
737 | target_dev_tab.dev_tsize = 8; | ||
738 | target_dev_tab.dev_devwidth = 32; | ||
739 | target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; | ||
740 | target_dev_tab.dev_intlevel = 0; | ||
741 | target_dev_tab.dev_intpolarity = 0; | ||
742 | target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE; | ||
743 | } | ||
744 | else{ | ||
745 | source_dev_tab.dev_tsize = 1; | ||
746 | source_dev_tab.dev_devwidth = 16; | ||
747 | source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; | ||
748 | source_dev_tab.dev_intlevel = 0; | ||
749 | source_dev_tab.dev_intpolarity = 0; | ||
750 | |||
751 | /* init device table for target - static bus controller - */ | ||
752 | target_dev_tab.dev_id = DSCR_CMD0_ALWAYS; | ||
753 | target_dev_tab.dev_tsize = 1; | ||
754 | target_dev_tab.dev_devwidth = 16; | ||
755 | target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; | ||
756 | target_dev_tab.dev_intlevel = 0; | ||
757 | target_dev_tab.dev_intpolarity = 0; | ||
758 | target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE; | ||
759 | |||
760 | sprintf(&warning_output[0][0], | ||
761 | "%s is not on ide driver white list.", | ||
762 | auide_hwif.drive->id->model); | ||
763 | for ( i=strlen(&warning_output[0][0]) ; i<76; i++ ){ | ||
764 | sprintf(&warning_output[0][i]," "); | ||
765 | } | ||
766 | |||
767 | sprintf(&warning_output[1][0], | ||
768 | "To add %s please read 'Documentation/mips/AU1xxx_IDE.README'.", | ||
769 | auide_hwif.drive->id->model); | ||
770 | for ( i=strlen(&warning_output[1][0]) ; i<76; i++ ){ | ||
771 | sprintf(&warning_output[1][i]," "); | ||
772 | } | ||
773 | |||
774 | printk("\n****************************************"); | ||
775 | printk("****************************************\n"); | ||
776 | printk("* %s *\n",&warning_output[0][0]); | ||
777 | printk("* Switch to safe MWDMA Mode! "); | ||
778 | printk(" *\n"); | ||
779 | printk("* %s *\n",&warning_output[1][0]); | ||
780 | printk("****************************************"); | ||
781 | printk("****************************************\n\n"); | ||
782 | } | ||
783 | #else | ||
784 | source_dev_tab.dev_id = DSCR_CMD0_ALWAYS; | ||
785 | source_dev_tab.dev_tsize = 8; | ||
786 | source_dev_tab.dev_devwidth = 32; | ||
787 | source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; | ||
788 | source_dev_tab.dev_intlevel = 0; | ||
789 | source_dev_tab.dev_intpolarity = 0; | ||
790 | #endif | ||
791 | |||
792 | #if CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON | ||
793 | /* set flags for tx channel */ | ||
794 | source_dev_tab.dev_flags = DEV_FLAGS_OUT | ||
795 | | DEV_FLAGS_SYNC | ||
796 | | DEV_FLAGS_BURSTABLE; | ||
797 | auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); | ||
798 | /* set flags for rx channel */ | ||
799 | source_dev_tab.dev_flags = DEV_FLAGS_IN | ||
800 | | DEV_FLAGS_SYNC | ||
801 | | DEV_FLAGS_BURSTABLE; | ||
802 | auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); | ||
803 | #else | ||
804 | /* set flags for tx channel */ | ||
805 | source_dev_tab.dev_flags = DEV_FLAGS_OUT | DEV_FLAGS_SYNC; | ||
806 | auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); | ||
807 | /* set flags for rx channel */ | ||
808 | source_dev_tab.dev_flags = DEV_FLAGS_IN | DEV_FLAGS_SYNC; | ||
809 | auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); | ||
810 | #endif | ||
811 | |||
812 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) | ||
813 | |||
814 | auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab); | ||
815 | |||
816 | /* Get a channel for TX */ | ||
817 | auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id, | ||
818 | auide->tx_dev_id, | ||
819 | auide_ddma_tx_callback, | ||
820 | (void*)auide); | ||
821 | /* Get a channel for RX */ | ||
822 | auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, | ||
823 | auide->target_dev_id, | ||
824 | auide_ddma_rx_callback, | ||
825 | (void*)auide); | ||
826 | #else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */ | ||
827 | /* | ||
828 | * Note: if call back is not enabled, update ctp->cur_ptr manually | ||
829 | */ | ||
830 | auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS, | ||
831 | auide->tx_dev_id, | ||
832 | NULL, | ||
833 | (void*)auide); | ||
834 | auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, | ||
835 | DSCR_CMD0_ALWAYS, | ||
836 | NULL, | ||
837 | (void*)auide); | ||
838 | #endif | ||
839 | auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, | ||
840 | NUM_DESCRIPTORS); | ||
841 | auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, | ||
842 | NUM_DESCRIPTORS); | ||
843 | |||
844 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) | ||
845 | hwif->dmatable_cpu = dma_alloc_coherent(auide->dev, | ||
846 | PRD_ENTRIES * PRD_BYTES, /* 1 Page */ | ||
847 | &hwif->dmatable_dma, GFP_KERNEL); | ||
848 | |||
849 | auide->sg_table = kmalloc(sizeof(struct scatterlist) * PRD_ENTRIES, | ||
850 | GFP_KERNEL|GFP_DMA); | ||
851 | if (auide->sg_table == NULL) { | ||
852 | return -ENOMEM; | ||
853 | } | ||
854 | #endif | ||
855 | au1xxx_dbdma_start( auide->tx_chan ); | ||
856 | au1xxx_dbdma_start( auide->rx_chan ); | ||
857 | return 0; | ||
858 | } | ||
859 | |||
860 | static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif) | ||
861 | { | ||
862 | int i; | ||
863 | #define ide_ioreg_t unsigned long | ||
864 | ide_ioreg_t *ata_regs = hw->io_ports; | ||
865 | |||
866 | /* fixme */ | ||
867 | for (i = 0; i < IDE_CONTROL_OFFSET; i++) { | ||
868 | *ata_regs++ = (ide_ioreg_t) ahwif->regbase | ||
869 | + (ide_ioreg_t)(i << AU1XXX_ATA_REG_OFFSET); | ||
870 | } | ||
871 | |||
872 | /* set the Alternative Status register */ | ||
873 | *ata_regs = (ide_ioreg_t) ahwif->regbase | ||
874 | + (ide_ioreg_t)(14 << AU1XXX_ATA_REG_OFFSET); | ||
875 | } | ||
876 | |||
877 | static int au_ide_probe(struct device *dev) | ||
878 | { | ||
879 | struct platform_device *pdev = to_platform_device(dev); | ||
880 | _auide_hwif *ahwif = &auide_hwif; | ||
881 | ide_hwif_t *hwif; | ||
882 | struct resource *res; | ||
883 | int ret = 0; | ||
884 | |||
885 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) | ||
886 | char *mode = "MWDMA2"; | ||
887 | #elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) | ||
888 | char *mode = "PIO+DDMA(offload)"; | ||
889 | #endif | ||
890 | |||
891 | memset(&auide_hwif, 0, sizeof(_auide_hwif)); | ||
892 | auide_hwif.dev = 0; | ||
893 | |||
894 | ahwif->dev = dev; | ||
895 | ahwif->irq = platform_get_irq(pdev, 0); | ||
896 | |||
897 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
898 | |||
899 | if (res == NULL) { | ||
900 | pr_debug("%s %d: no base address\n", DRV_NAME, pdev->id); | ||
901 | ret = -ENODEV; | ||
902 | goto out; | ||
903 | } | ||
904 | |||
905 | if (!request_mem_region (res->start, res->end-res->start, pdev->name)) { | ||
906 | pr_debug("%s: request_mem_region failed\n", DRV_NAME); | ||
907 | ret = -EBUSY; | ||
908 | goto out; | ||
909 | } | ||
910 | |||
911 | ahwif->regbase = (u32)ioremap(res->start, res->end-res->start); | ||
912 | if (ahwif->regbase == 0) { | ||
913 | ret = -ENOMEM; | ||
914 | goto out; | ||
915 | } | ||
916 | |||
917 | hwif = &ide_hwifs[pdev->id]; | ||
918 | hw_regs_t *hw = &hwif->hw; | ||
919 | hwif->irq = hw->irq = ahwif->irq; | ||
920 | hwif->chipset = ide_au1xxx; | ||
921 | |||
922 | auide_setup_ports(hw, ahwif); | ||
923 | memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); | ||
924 | |||
925 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ | ||
926 | hwif->rqsize = CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ; | ||
927 | hwif->rqsize = ((hwif->rqsize > AU1XXX_ATA_RQSIZE) | ||
928 | || (hwif->rqsize < 32)) ? AU1XXX_ATA_RQSIZE : hwif->rqsize; | ||
929 | #else /* if kernel config is not set */ | ||
930 | hwif->rqsize = AU1XXX_ATA_RQSIZE; | ||
931 | #endif | ||
932 | |||
933 | hwif->ultra_mask = 0x0; /* Disable Ultra DMA */ | ||
934 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
935 | hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */ | ||
936 | hwif->swdma_mask = 0x07; | ||
937 | #else | ||
938 | hwif->mwdma_mask = 0x0; | ||
939 | hwif->swdma_mask = 0x0; | ||
940 | #endif | ||
941 | //hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; | ||
942 | hwif->noprobe = 0; | ||
943 | hwif->drives[0].unmask = 1; | ||
944 | hwif->drives[1].unmask = 1; | ||
945 | |||
946 | /* hold should be on in all cases */ | ||
947 | hwif->hold = 1; | ||
948 | hwif->mmio = 2; | ||
949 | |||
950 | /* set up local I/O function entry points */ | ||
951 | hwif->INB = auide_inb; | ||
952 | hwif->INW = auide_inw; | ||
953 | hwif->INL = auide_inl; | ||
954 | hwif->INSW = auide_insw; | ||
955 | hwif->INSL = auide_insl; | ||
956 | hwif->OUTB = auide_outb; | ||
957 | hwif->OUTBSYNC = auide_outbsync; | ||
958 | hwif->OUTW = auide_outw; | ||
959 | hwif->OUTL = auide_outl; | ||
960 | hwif->OUTSW = auide_outsw; | ||
961 | hwif->OUTSL = auide_outsl; | ||
962 | |||
963 | hwif->tuneproc = &auide_tune_drive; | ||
964 | hwif->speedproc = &auide_tune_chipset; | ||
965 | |||
966 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA | ||
967 | hwif->ide_dma_off_quietly = &auide_dma_off_quietly; | ||
968 | hwif->ide_dma_timeout = &auide_dma_timeout; | ||
969 | |||
970 | hwif->ide_dma_check = &auide_dma_check; | ||
971 | hwif->dma_exec_cmd = &auide_dma_exec_cmd; | ||
972 | hwif->dma_start = &auide_dma_start; | ||
973 | hwif->ide_dma_end = &auide_dma_end; | ||
974 | hwif->dma_setup = &auide_dma_setup; | ||
975 | hwif->ide_dma_test_irq = &auide_dma_test_irq; | ||
976 | hwif->ide_dma_host_off = &auide_dma_host_off; | ||
977 | hwif->ide_dma_host_on = &auide_dma_host_on; | ||
978 | hwif->ide_dma_lostirq = &auide_dma_lostirq; | ||
979 | hwif->ide_dma_on = &auide_dma_on; | ||
980 | |||
981 | hwif->autodma = 1; | ||
982 | hwif->drives[0].autodma = hwif->autodma; | ||
983 | hwif->drives[1].autodma = hwif->autodma; | ||
984 | hwif->atapi_dma = 1; | ||
985 | hwif->drives[0].using_dma = 1; | ||
986 | hwif->drives[1].using_dma = 1; | ||
987 | #else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ | ||
988 | hwif->autodma = 0; | ||
989 | hwif->channel = 0; | ||
990 | hwif->hold = 1; | ||
991 | hwif->select_data = 0; /* no chipset-specific code */ | ||
992 | hwif->config_data = 0; /* no chipset-specific code */ | ||
993 | |||
994 | hwif->drives[0].autodma = 0; | ||
995 | hwif->drives[0].drive_data = 0; /* no drive data */ | ||
996 | hwif->drives[0].using_dma = 0; | ||
997 | hwif->drives[0].waiting_for_dma = 0; | ||
998 | hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */ | ||
999 | /* secondary hdd not supported */ | ||
1000 | hwif->drives[1].autodma = 0; | ||
1001 | |||
1002 | hwif->drives[1].drive_data = 0; | ||
1003 | hwif->drives[1].using_dma = 0; | ||
1004 | hwif->drives[1].waiting_for_dma = 0; | ||
1005 | hwif->drives[1].autotune = 2; /* 1=autotune, 2=noautotune, 0=default */ | ||
1006 | #endif | ||
1007 | hwif->drives[0].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ | ||
1008 | hwif->drives[1].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ | ||
1009 | |||
1010 | /*Register Driver with PM Framework*/ | ||
1011 | #ifdef CONFIG_PM | ||
1012 | auide_hwif.pm.lock = SPIN_LOCK_UNLOCKED; | ||
1013 | auide_hwif.pm.stopped = 0; | ||
1014 | |||
1015 | auide_hwif.pm.dev = new_au1xxx_power_device( "ide", | ||
1016 | &au1200ide_pm_callback, | ||
1017 | NULL); | ||
1018 | if ( auide_hwif.pm.dev == NULL ) | ||
1019 | printk(KERN_INFO "Unable to create a power management \ | ||
1020 | device entry for the au1200-IDE.\n"); | ||
1021 | else | ||
1022 | printk(KERN_INFO "Power management device entry for the \ | ||
1023 | au1200-IDE loaded.\n"); | ||
1024 | #endif | ||
1025 | |||
1026 | auide_hwif.hwif = hwif; | ||
1027 | hwif->hwif_data = &auide_hwif; | ||
1028 | |||
1029 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA | ||
1030 | auide_ddma_init(&auide_hwif); | ||
1031 | dbdma_init_done = 1; | ||
1032 | #endif | ||
1033 | |||
1034 | probe_hwif_init(hwif); | ||
1035 | dev_set_drvdata(dev, hwif); | ||
1036 | |||
1037 | printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); | ||
1038 | |||
1039 | out: | ||
1040 | return ret; | ||
1041 | } | ||
1042 | |||
1043 | static int au_ide_remove(struct device *dev) | ||
1044 | { | ||
1045 | struct platform_device *pdev = to_platform_device(dev); | ||
1046 | struct resource *res; | ||
1047 | ide_hwif_t *hwif = dev_get_drvdata(dev); | ||
1048 | _auide_hwif *ahwif = &auide_hwif; | ||
1049 | |||
1050 | ide_unregister(hwif - ide_hwifs); | ||
1051 | |||
1052 | iounmap((void *)ahwif->regbase); | ||
1053 | |||
1054 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
1055 | release_mem_region(res->start, res->end - res->start); | ||
1056 | |||
1057 | return 0; | ||
1058 | } | ||
1059 | |||
1060 | static struct device_driver au1200_ide_driver = { | ||
1061 | .name = "au1200-ide", | ||
1062 | .bus = &platform_bus_type, | ||
1063 | .probe = au_ide_probe, | ||
1064 | .remove = au_ide_remove, | ||
1065 | }; | ||
1066 | |||
1067 | static int __init au_ide_init(void) | ||
1068 | { | ||
1069 | return driver_register(&au1200_ide_driver); | ||
1070 | } | ||
1071 | |||
1072 | static void __init au_ide_exit(void) | ||
1073 | { | ||
1074 | driver_unregister(&au1200_ide_driver); | ||
1075 | } | ||
1076 | |||
1077 | #ifdef CONFIG_PM | ||
1078 | int au1200ide_pm_callback( au1xxx_power_dev_t *dev,\ | ||
1079 | au1xxx_request_t request, void *data) { | ||
1080 | |||
1081 | unsigned int d, err = 0; | ||
1082 | unsigned long flags; | ||
1083 | |||
1084 | spin_lock_irqsave(auide_hwif.pm.lock, flags); | ||
1085 | |||
1086 | switch (request){ | ||
1087 | case AU1XXX_PM_SLEEP: | ||
1088 | err = au1xxxide_pm_sleep(dev); | ||
1089 | break; | ||
1090 | case AU1XXX_PM_WAKEUP: | ||
1091 | d = *((unsigned int*)data); | ||
1092 | if ( d > 0 && d <= 99) { | ||
1093 | err = au1xxxide_pm_standby(dev); | ||
1094 | } | ||
1095 | else { | ||
1096 | err = au1xxxide_pm_resume(dev); | ||
1097 | } | ||
1098 | break; | ||
1099 | case AU1XXX_PM_GETSTATUS: | ||
1100 | err = au1xxxide_pm_getstatus(dev); | ||
1101 | break; | ||
1102 | case AU1XXX_PM_ACCESS: | ||
1103 | err = au1xxxide_pm_access(dev); | ||
1104 | break; | ||
1105 | case AU1XXX_PM_IDLE: | ||
1106 | err = au1xxxide_pm_idle(dev); | ||
1107 | break; | ||
1108 | case AU1XXX_PM_CLEANUP: | ||
1109 | err = au1xxxide_pm_cleanup(dev); | ||
1110 | break; | ||
1111 | default: | ||
1112 | err = -1; | ||
1113 | break; | ||
1114 | } | ||
1115 | |||
1116 | spin_unlock_irqrestore(auide_hwif.pm.lock, flags); | ||
1117 | |||
1118 | return err; | ||
1119 | } | ||
1120 | |||
1121 | static int au1xxxide_pm_standby( au1xxx_power_dev_t *dev ) { | ||
1122 | return 0; | ||
1123 | } | ||
1124 | |||
1125 | static int au1xxxide_pm_sleep( au1xxx_power_dev_t *dev ) { | ||
1126 | |||
1127 | int retval; | ||
1128 | ide_hwif_t *hwif = auide_hwif.hwif; | ||
1129 | struct request rq; | ||
1130 | struct request_pm_state rqpm; | ||
1131 | ide_task_t args; | ||
1132 | |||
1133 | if(auide_hwif.pm.stopped) | ||
1134 | return -1; | ||
1135 | |||
1136 | /* | ||
1137 | * wait until hard disc is ready | ||
1138 | */ | ||
1139 | if ( wait_for_ready(&hwif->drives[0], 35000) ) { | ||
1140 | printk("Wait for drive sleep timeout!\n"); | ||
1141 | retval = -1; | ||
1142 | } | ||
1143 | |||
1144 | /* | ||
1145 | * sequenz to tell the high level ide driver that pm is resuming | ||
1146 | */ | ||
1147 | memset(&rq, 0, sizeof(rq)); | ||
1148 | memset(&rqpm, 0, sizeof(rqpm)); | ||
1149 | memset(&args, 0, sizeof(args)); | ||
1150 | rq.flags = REQ_PM_SUSPEND; | ||
1151 | rq.special = &args; | ||
1152 | rq.pm = &rqpm; | ||
1153 | rqpm.pm_step = ide_pm_state_start_suspend; | ||
1154 | rqpm.pm_state = PMSG_SUSPEND; | ||
1155 | |||
1156 | retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_wait); | ||
1157 | |||
1158 | if (wait_for_ready (&hwif->drives[0], 35000)) { | ||
1159 | printk("Wait for drive sleep timeout!\n"); | ||
1160 | retval = -1; | ||
1161 | } | ||
1162 | |||
1163 | /* | ||
1164 | * stop dbdma channels | ||
1165 | */ | ||
1166 | au1xxx_dbdma_reset(auide_hwif.tx_chan); | ||
1167 | au1xxx_dbdma_reset(auide_hwif.rx_chan); | ||
1168 | |||
1169 | auide_hwif.pm.stopped = 1; | ||
1170 | |||
1171 | return retval; | ||
1172 | } | ||
1173 | |||
1174 | static int au1xxxide_pm_resume( au1xxx_power_dev_t *dev ) { | ||
1175 | |||
1176 | int retval; | ||
1177 | ide_hwif_t *hwif = auide_hwif.hwif; | ||
1178 | struct request rq; | ||
1179 | struct request_pm_state rqpm; | ||
1180 | ide_task_t args; | ||
1181 | |||
1182 | if(!auide_hwif.pm.stopped) | ||
1183 | return -1; | ||
1184 | |||
1185 | /* | ||
1186 | * start dbdma channels | ||
1187 | */ | ||
1188 | au1xxx_dbdma_start(auide_hwif.tx_chan); | ||
1189 | au1xxx_dbdma_start(auide_hwif.rx_chan); | ||
1190 | |||
1191 | /* | ||
1192 | * wait until hard disc is ready | ||
1193 | */ | ||
1194 | if (wait_for_ready ( &hwif->drives[0], 35000)) { | ||
1195 | printk("Wait for drive wake up timeout!\n"); | ||
1196 | retval = -1; | ||
1197 | } | ||
1198 | |||
1199 | /* | ||
1200 | * sequenz to tell the high level ide driver that pm is resuming | ||
1201 | */ | ||
1202 | memset(&rq, 0, sizeof(rq)); | ||
1203 | memset(&rqpm, 0, sizeof(rqpm)); | ||
1204 | memset(&args, 0, sizeof(args)); | ||
1205 | rq.flags = REQ_PM_RESUME; | ||
1206 | rq.special = &args; | ||
1207 | rq.pm = &rqpm; | ||
1208 | rqpm.pm_step = ide_pm_state_start_resume; | ||
1209 | rqpm.pm_state = PMSG_ON; | ||
1210 | |||
1211 | retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_head_wait); | ||
1212 | |||
1213 | /* | ||
1214 | * wait for hard disc | ||
1215 | */ | ||
1216 | if ( wait_for_ready(&hwif->drives[0], 35000) ) { | ||
1217 | printk("Wait for drive wake up timeout!\n"); | ||
1218 | retval = -1; | ||
1219 | } | ||
1220 | |||
1221 | auide_hwif.pm.stopped = 0; | ||
1222 | |||
1223 | return retval; | ||
1224 | } | ||
1225 | |||
1226 | static int au1xxxide_pm_getstatus( au1xxx_power_dev_t *dev ) { | ||
1227 | return dev->cur_state; | ||
1228 | } | ||
1229 | |||
1230 | static int au1xxxide_pm_access( au1xxx_power_dev_t *dev ) { | ||
1231 | if (dev->cur_state != AWAKE_STATE) | ||
1232 | return 0; | ||
1233 | else | ||
1234 | return -1; | ||
1235 | } | ||
1236 | |||
1237 | static int au1xxxide_pm_idle( au1xxx_power_dev_t *dev ) { | ||
1238 | return 0; | ||
1239 | } | ||
1240 | |||
1241 | static int au1xxxide_pm_cleanup( au1xxx_power_dev_t *dev ) { | ||
1242 | return 0; | ||
1243 | } | ||
1244 | #endif /* CONFIG_PM */ | ||
1245 | |||
1246 | MODULE_LICENSE("GPL"); | ||
1247 | MODULE_DESCRIPTION("AU1200 IDE driver"); | ||
1248 | |||
1249 | module_init(au_ide_init); | ||
1250 | module_exit(au_ide_exit); | ||