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authorJordan Crouse <jordan.crouse@amd.com>2005-12-14 20:17:46 -0500
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2005-12-14 20:17:46 -0500
commit8f29e650bffc1e22ed6b2d0b321bc77627f3bb7a (patch)
treed6b785c09c57a8f742e9a81162ee0d176677dc21 /drivers
parent65e5f2e3b457b6b20a5c4481312189d141a33d24 (diff)
[PATCH] ide: AU1200 IDE update
Changes here include removing all of CONFIG_PM while it is being repeatedly smacked with a lead pipe, moving the BURSTMODE param to a #define (it should be defined almost always anyway), fixing the rqsize stuff, pulling ide_ioreg_t, and general cleanups and whatnot. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/Kconfig8
-rw-r--r--drivers/ide/mips/Makefile3
-rw-r--r--drivers/ide/mips/au1xxx-ide.c1498
3 files changed, 535 insertions, 974 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 45579ae12c01..1c81174595b3 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -807,14 +807,6 @@ config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
807 depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX 807 depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
808endchoice 808endchoice
809 809
810config BLK_DEV_IDE_AU1XXX_BURSTABLE_ON
811 bool "Enable burstable Mode on DbDMA"
812 default false
813 depends BLK_DEV_IDE_AU1XXX
814 help
815 This option enable the burstable Flag on DbDMA controller
816 (cf. "AMD Alchemy 'Au1200' Processor Data Book - PRELIMINARY").
817
818config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ 810config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
819 int "Maximum transfer size (KB) per request (up to 128)" 811 int "Maximum transfer size (KB) per request (up to 128)"
820 default "128" 812 default "128"
diff --git a/drivers/ide/mips/Makefile b/drivers/ide/mips/Makefile
index 578e52a59588..677c7b2bac92 100644
--- a/drivers/ide/mips/Makefile
+++ b/drivers/ide/mips/Makefile
@@ -1 +1,4 @@
1obj-$(CONFIG_BLK_DEV_IDE_SWARM) += swarm.o 1obj-$(CONFIG_BLK_DEV_IDE_SWARM) += swarm.o
2obj-$(CONFIG_BLK_DEV_IDE_AU1XXX) += au1xxx-ide.o
3
4EXTRA_CFLAGS := -Idrivers/ide
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 2b6327c576b9..32431dcf5d8e 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -31,865 +31,638 @@
31 */ 31 */
32#undef REALLY_SLOW_IO /* most systems can safely undef this */ 32#undef REALLY_SLOW_IO /* most systems can safely undef this */
33 33
34#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
35#include <linux/types.h> 34#include <linux/types.h>
36#include <linux/module.h> 35#include <linux/module.h>
37#include <linux/kernel.h> 36#include <linux/kernel.h>
38#include <linux/delay.h> 37#include <linux/delay.h>
39#include <linux/timer.h> 38#include <linux/platform_device.h>
40#include <linux/mm.h> 39
41#include <linux/ioport.h>
42#include <linux/hdreg.h>
43#include <linux/init.h> 40#include <linux/init.h>
44#include <linux/ide.h> 41#include <linux/ide.h>
45#include <linux/sysdev.h> 42#include <linux/sysdev.h>
46 43
47#include <linux/dma-mapping.h> 44#include <linux/dma-mapping.h>
48 45
46#include "ide-timing.h"
47
49#include <asm/io.h> 48#include <asm/io.h>
50#include <asm/mach-au1x00/au1xxx.h> 49#include <asm/mach-au1x00/au1xxx.h>
51#include <asm/mach-au1x00/au1xxx_dbdma.h> 50#include <asm/mach-au1x00/au1xxx_dbdma.h>
52 51
53#if CONFIG_PM
54#include <asm/mach-au1x00/au1xxx_pm.h>
55#endif
56
57#include <asm/mach-au1x00/au1xxx_ide.h> 52#include <asm/mach-au1x00/au1xxx_ide.h>
58 53
59#define DRV_NAME "au1200-ide" 54#define DRV_NAME "au1200-ide"
60#define DRV_VERSION "1.0" 55#define DRV_VERSION "1.0"
61#define DRV_AUTHOR "AMD PCS / Pete Popov <ppopov@embeddedalley.com>" 56#define DRV_AUTHOR "Enrico Walther <enrico.walther@amd.com> / Pete Popov <ppopov@embeddedalley.com>"
62#define DRV_DESC "Au1200 IDE"
63
64static _auide_hwif auide_hwif;
65static spinlock_t ide_tune_drive_spin_lock = SPIN_LOCK_UNLOCKED;
66static spinlock_t ide_tune_chipset_spin_lock = SPIN_LOCK_UNLOCKED;
67static int dbdma_init_done = 0;
68
69/*
70 * local I/O functions
71 */
72u8 auide_inb(unsigned long port)
73{
74 return (au_readb(port));
75}
76 57
77u16 auide_inw(unsigned long port) 58/* enable the burstmode in the dbdma */
78{ 59#define IDE_AU1XXX_BURSTMODE 1
79 return (au_readw(port));
80}
81 60
82u32 auide_inl(unsigned long port) 61static _auide_hwif auide_hwif;
83{ 62static int dbdma_init_done;
84 return (au_readl(port));
85}
86 63
87void auide_insw(unsigned long port, void *addr, u32 count)
88{
89#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) 64#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
90 65
91 _auide_hwif *ahwif = &auide_hwif; 66void auide_insw(unsigned long port, void *addr, u32 count)
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
114void 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
126void auide_outb(u8 addr, unsigned long port)
127{ 67{
128 return (au_writeb(addr, port)); 68 _auide_hwif *ahwif = &auide_hwif;
129} 69 chan_tab_t *ctp;
70 au1x_ddma_desc_t *dp;
130 71
131void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port) 72 if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1,
132{ 73 DDMA_FLAGS_NOIE)) {
133 return (au_writeb(addr, port)); 74 printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
75 return;
76 }
77 ctp = *((chan_tab_t **)ahwif->rx_chan);
78 dp = ctp->cur_ptr;
79 while (dp->dscr_cmd0 & DSCR_CMD0_V)
80 ;
81 ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
134} 82}
135 83
136void auide_outw(u16 addr, unsigned long port) 84void auide_outsw(unsigned long port, void *addr, u32 count)
137{ 85{
138 return (au_writew(addr, port)); 86 _auide_hwif *ahwif = &auide_hwif;
139} 87 chan_tab_t *ctp;
88 au1x_ddma_desc_t *dp;
140 89
141void auide_outl(u32 addr, unsigned long port) 90 if(!put_source_flags(ahwif->tx_chan, (void*)addr,
142{ 91 count << 1, DDMA_FLAGS_NOIE)) {
143 return (au_writel(addr, port)); 92 printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
93 return;
94 }
95 ctp = *((chan_tab_t **)ahwif->tx_chan);
96 dp = ctp->cur_ptr;
97 while (dp->dscr_cmd0 & DSCR_CMD0_V)
98 ;
99 ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
144} 100}
145 101
146void 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 102#endif
170}
171
172void 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}
183 103
184static void auide_tune_drive(ide_drive_t *drive, byte pio) 104static void auide_tune_drive(ide_drive_t *drive, byte pio)
185{ 105{
186 int mem_sttime; 106 int mem_sttime;
187 int mem_stcfg; 107 int mem_stcfg;
188 unsigned long flags; 108 u8 speed;
189 u8 speed; 109
190 110 /* get the best pio mode for the drive */
191 /* get the best pio mode for the drive */ 111 pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
192 pio = ide_get_best_pio_mode(drive, pio, 4, NULL); 112
193 113 printk(KERN_INFO "%s: setting Au1XXX IDE to PIO mode%d\n",
194 printk("%s: setting Au1XXX IDE to PIO mode%d\n", 114 drive->name, pio);
195 drive->name, pio); 115
196 116 mem_sttime = 0;
197 spin_lock_irqsave(&ide_tune_drive_spin_lock, flags); 117 mem_stcfg = au_readl(MEM_STCFG2);
198 118
199 mem_sttime = 0; 119 /* set pio mode! */
200 mem_stcfg = au_readl(MEM_STCFG2); 120 switch(pio) {
201 121 case 0:
202 /* set pio mode! */ 122 mem_sttime = SBC_IDE_TIMING(PIO0);
203 switch(pio) { 123
204 case 0: 124 /* set configuration for RCS2# */
205 /* set timing parameters for RCS2# */ 125 mem_stcfg |= TS_MASK;
206 mem_sttime = SBC_IDE_PIO0_TWCS 126 mem_stcfg &= ~TCSOE_MASK;
207 | SBC_IDE_PIO0_TCSH 127 mem_stcfg &= ~TOECS_MASK;
208 | SBC_IDE_PIO0_TCSOFF 128 mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS;
209 | SBC_IDE_PIO0_TWP 129 break;
210 | SBC_IDE_PIO0_TCSW 130
211 | SBC_IDE_PIO0_TPM 131 case 1:
212 | SBC_IDE_PIO0_TA; 132 mem_sttime = SBC_IDE_TIMING(PIO1);
213 /* set configuration for RCS2# */ 133
214 mem_stcfg |= TS_MASK; 134 /* set configuration for RCS2# */
215 mem_stcfg &= ~TCSOE_MASK; 135 mem_stcfg |= TS_MASK;
216 mem_stcfg &= ~TOECS_MASK; 136 mem_stcfg &= ~TCSOE_MASK;
217 mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; 137 mem_stcfg &= ~TOECS_MASK;
218 138 mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS;
219 au_writel(mem_sttime,MEM_STTIME2); 139 break;
220 au_writel(mem_stcfg,MEM_STCFG2); 140
221 break; 141 case 2:
222 142 mem_sttime = SBC_IDE_TIMING(PIO2);
223 case 1: 143
224 /* set timing parameters for RCS2# */ 144 /* set configuration for RCS2# */
225 mem_sttime = SBC_IDE_PIO1_TWCS 145 mem_stcfg &= ~TS_MASK;
226 | SBC_IDE_PIO1_TCSH 146 mem_stcfg &= ~TCSOE_MASK;
227 | SBC_IDE_PIO1_TCSOFF 147 mem_stcfg &= ~TOECS_MASK;
228 | SBC_IDE_PIO1_TWP 148 mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS;
229 | SBC_IDE_PIO1_TCSW 149 break;
230 | SBC_IDE_PIO1_TPM 150
231 | SBC_IDE_PIO1_TA; 151 case 3:
232 /* set configuration for RCS2# */ 152 mem_sttime = SBC_IDE_TIMING(PIO3);
233 mem_stcfg |= TS_MASK; 153
234 mem_stcfg &= ~TCSOE_MASK; 154 /* set configuration for RCS2# */
235 mem_stcfg &= ~TOECS_MASK; 155 mem_stcfg &= ~TS_MASK;
236 mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; 156 mem_stcfg &= ~TCSOE_MASK;
237 break; 157 mem_stcfg &= ~TOECS_MASK;
238 158 mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS;
239 case 2: 159
240 /* set timing parameters for RCS2# */ 160 break;
241 mem_sttime = SBC_IDE_PIO2_TWCS 161
242 | SBC_IDE_PIO2_TCSH 162 case 4:
243 | SBC_IDE_PIO2_TCSOFF 163 mem_sttime = SBC_IDE_TIMING(PIO4);
244 | SBC_IDE_PIO2_TWP 164
245 | SBC_IDE_PIO2_TCSW 165 /* set configuration for RCS2# */
246 | SBC_IDE_PIO2_TPM 166 mem_stcfg &= ~TS_MASK;
247 | SBC_IDE_PIO2_TA; 167 mem_stcfg &= ~TCSOE_MASK;
248 /* set configuration for RCS2# */ 168 mem_stcfg &= ~TOECS_MASK;
249 mem_stcfg &= ~TS_MASK; 169 mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS;
250 mem_stcfg &= ~TCSOE_MASK; 170 break;
251 mem_stcfg &= ~TOECS_MASK; 171 }
252 mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; 172
253 break; 173 au_writel(mem_sttime,MEM_STTIME2);
254 174 au_writel(mem_stcfg,MEM_STCFG2);
255 case 3: 175
256 /* set timing parameters for RCS2# */ 176 speed = pio + XFER_PIO_0;
257 mem_sttime = SBC_IDE_PIO3_TWCS 177 ide_config_drive_speed(drive, speed);
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} 178}
298 179
299static int auide_tune_chipset (ide_drive_t *drive, u8 speed) 180static int auide_tune_chipset (ide_drive_t *drive, u8 speed)
300{ 181{
301 u8 mode = 0; 182 int mem_sttime;
302 int mem_sttime; 183 int mem_stcfg;
303 int mem_stcfg; 184 unsigned long mode;
304 unsigned long flags; 185
305#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 186#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
306 struct hd_driveid *id = drive->id; 187 if (ide_use_dma(drive))
307 188 mode = ide_dma_speed(drive, 0);
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 189#endif
324 190
325 spin_lock_irqsave(&ide_tune_chipset_spin_lock, flags); 191 mem_sttime = 0;
192 mem_stcfg = au_readl(MEM_STCFG2);
326 193
327 mem_sttime = 0; 194 if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
328 mem_stcfg = au_readl(MEM_STCFG2); 195 auide_tune_drive(drive, speed - XFER_PIO_0);
329 196 return 0;
330 switch(speed) { 197 }
331 case XFER_PIO_4: 198
332 case XFER_PIO_3: 199 switch(speed) {
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 200#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
339 case XFER_MW_DMA_2: 201 case XFER_MW_DMA_2:
340 /* set timing parameters for RCS2# */ 202 mem_sttime = SBC_IDE_TIMING(MDMA2);
341 mem_sttime = SBC_IDE_MDMA2_TWCS 203
342 | SBC_IDE_MDMA2_TCSH 204 /* set configuration for RCS2# */
343 | SBC_IDE_MDMA2_TCSOFF 205 mem_stcfg &= ~TS_MASK;
344 | SBC_IDE_MDMA2_TWP 206 mem_stcfg &= ~TCSOE_MASK;
345 | SBC_IDE_MDMA2_TCSW 207 mem_stcfg &= ~TOECS_MASK;
346 | SBC_IDE_MDMA2_TPM 208 mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS;
347 | SBC_IDE_MDMA2_TA; 209
348 /* set configuration for RCS2# */ 210 mode = XFER_MW_DMA_2;
349 mem_stcfg &= ~TS_MASK; 211 break;
350 mem_stcfg &= ~TCSOE_MASK; 212 case XFER_MW_DMA_1:
351 mem_stcfg &= ~TOECS_MASK; 213 mem_sttime = SBC_IDE_TIMING(MDMA1);
352 mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; 214
353 215 /* set configuration for RCS2# */
354 mode = XFER_MW_DMA_2; 216 mem_stcfg &= ~TS_MASK;
355 break; 217 mem_stcfg &= ~TCSOE_MASK;
356 case XFER_MW_DMA_1: 218 mem_stcfg &= ~TOECS_MASK;
357 /* set timing parameters for RCS2# */ 219 mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS;
358 mem_sttime = SBC_IDE_MDMA1_TWCS 220
359 | SBC_IDE_MDMA1_TCSH 221 mode = XFER_MW_DMA_1;
360 | SBC_IDE_MDMA1_TCSOFF 222 break;
361 | SBC_IDE_MDMA1_TWP 223 case XFER_MW_DMA_0:
362 | SBC_IDE_MDMA1_TCSW 224 mem_sttime = SBC_IDE_TIMING(MDMA0);
363 | SBC_IDE_MDMA1_TPM 225
364 | SBC_IDE_MDMA1_TA; 226 /* set configuration for RCS2# */
365 /* set configuration for RCS2# */ 227 mem_stcfg |= TS_MASK;
366 mem_stcfg &= ~TS_MASK; 228 mem_stcfg &= ~TCSOE_MASK;
367 mem_stcfg &= ~TCSOE_MASK; 229 mem_stcfg &= ~TOECS_MASK;
368 mem_stcfg &= ~TOECS_MASK; 230 mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS;
369 mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; 231
370 232 mode = XFER_MW_DMA_0;
371 mode = XFER_MW_DMA_1; 233 break;
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 234#endif
391 default: 235 default:
392 return 1; 236 return 1;
393 } 237 }
394 238
395 /* 239 if (ide_config_drive_speed(drive, mode))
396 * Tell the drive to switch to the new mode; abort on failure. 240 return 1;
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);
406 241
407 spin_unlock_irqrestore(&ide_tune_chipset_spin_lock, flags); 242 au_writel(mem_sttime,MEM_STTIME2);
243 au_writel(mem_stcfg,MEM_STCFG2);
408 244
409 return 0; 245 return 0;
410} 246}
411 247
412/* 248/*
413 * Multi-Word DMA + DbDMA functions 249 * Multi-Word DMA + DbDMA functions
414 */ 250 */
415#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
416 251
417static int in_drive_list(struct hd_driveid *id, 252#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
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}
429 253
430static int auide_build_sglist(ide_drive_t *drive, struct request *rq) 254static int auide_build_sglist(ide_drive_t *drive, struct request *rq)
431{ 255{
432 ide_hwif_t *hwif = drive->hwif; 256 ide_hwif_t *hwif = drive->hwif;
433 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; 257 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
434 struct scatterlist *sg = hwif->sg_table; 258 struct scatterlist *sg = hwif->sg_table;
435 259
436 ide_map_sg(drive, rq); 260 ide_map_sg(drive, rq);
437 261
438 if (rq_data_dir(rq) == READ) 262 if (rq_data_dir(rq) == READ)
439 hwif->sg_dma_direction = DMA_FROM_DEVICE; 263 hwif->sg_dma_direction = DMA_FROM_DEVICE;
440 else 264 else
441 hwif->sg_dma_direction = DMA_TO_DEVICE; 265 hwif->sg_dma_direction = DMA_TO_DEVICE;
442 266
443 return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, 267 return dma_map_sg(ahwif->dev, sg, hwif->sg_nents,
444 hwif->sg_dma_direction); 268 hwif->sg_dma_direction);
445} 269}
446 270
447static int auide_build_dmatable(ide_drive_t *drive) 271static int auide_build_dmatable(ide_drive_t *drive)
448{ 272{
449 int i, iswrite, count = 0; 273 int i, iswrite, count = 0;
450 ide_hwif_t *hwif = HWIF(drive); 274 ide_hwif_t *hwif = HWIF(drive);
451 275
452 struct request *rq = HWGROUP(drive)->rq; 276 struct request *rq = HWGROUP(drive)->rq;
453 277
454 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; 278 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
455 struct scatterlist *sg; 279 struct scatterlist *sg;
456 280
457 iswrite = (rq_data_dir(rq) == WRITE); 281 iswrite = (rq_data_dir(rq) == WRITE);
458 /* Save for interrupt context */ 282 /* Save for interrupt context */
459 ahwif->drive = drive; 283 ahwif->drive = drive;
460 284
461 /* Build sglist */ 285 /* Build sglist */
462 hwif->sg_nents = i = auide_build_sglist(drive, rq); 286 hwif->sg_nents = i = auide_build_sglist(drive, rq);
463 287
464 if (!i) 288 if (!i)
465 return 0; 289 return 0;
466 290
467 /* fill the descriptors */ 291 /* fill the descriptors */
468 sg = hwif->sg_table; 292 sg = hwif->sg_table;
469 while (i && sg_dma_len(sg)) { 293 while (i && sg_dma_len(sg)) {
470 u32 cur_addr; 294 u32 cur_addr;
471 u32 cur_len; 295 u32 cur_len;
472 296
473 cur_addr = sg_dma_address(sg); 297 cur_addr = sg_dma_address(sg);
474 cur_len = sg_dma_len(sg); 298 cur_len = sg_dma_len(sg);
475 299
476 while (cur_len) { 300 while (cur_len) {
477 u32 flags = DDMA_FLAGS_NOIE; 301 u32 flags = DDMA_FLAGS_NOIE;
478 unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; 302 unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00;
479 303
480 if (++count >= PRD_ENTRIES) { 304 if (++count >= PRD_ENTRIES) {
481 printk(KERN_WARNING "%s: DMA table too small\n", 305 printk(KERN_WARNING "%s: DMA table too small\n",
482 drive->name); 306 drive->name);
483 goto use_pio_instead; 307 goto use_pio_instead;
484 } 308 }
485 309
486 /* Lets enable intr for the last descriptor only */ 310 /* Lets enable intr for the last descriptor only */
487 if (1==i) 311 if (1==i)
488 flags = DDMA_FLAGS_IE; 312 flags = DDMA_FLAGS_IE;
489 else 313 else
490 flags = DDMA_FLAGS_NOIE; 314 flags = DDMA_FLAGS_NOIE;
491 315
492 if (iswrite) { 316 if (iswrite) {
493 if(!put_source_flags(ahwif->tx_chan, 317 if(!put_source_flags(ahwif->tx_chan,
494 (void*)(page_address(sg->page) 318 (void*)(page_address(sg->page)
495 + sg->offset), 319 + sg->offset),
496 tc, flags)) { 320 tc, flags)) {
497 printk(KERN_ERR "%s failed %d\n", 321 printk(KERN_ERR "%s failed %d\n",
498 __FUNCTION__, __LINE__); 322 __FUNCTION__, __LINE__);
499 } 323 }
500 } else 324 } else
501 { 325 {
502 if(!put_dest_flags(ahwif->rx_chan, 326 if(!put_dest_flags(ahwif->rx_chan,
503 (void*)(page_address(sg->page) 327 (void*)(page_address(sg->page)
504 + sg->offset), 328 + sg->offset),
505 tc, flags)) { 329 tc, flags)) {
506 printk(KERN_ERR "%s failed %d\n", 330 printk(KERN_ERR "%s failed %d\n",
507 __FUNCTION__, __LINE__); 331 __FUNCTION__, __LINE__);
508 } 332 }
509 } 333 }
510 334
511 cur_addr += tc; 335 cur_addr += tc;
512 cur_len -= tc; 336 cur_len -= tc;
513 } 337 }
514 sg++; 338 sg++;
515 i--; 339 i--;
516 } 340 }
517 341
518 if (count) 342 if (count)
519 return 1; 343 return 1;
520 344
521use_pio_instead: 345 use_pio_instead:
522 dma_unmap_sg(ahwif->dev, 346 dma_unmap_sg(ahwif->dev,
523 hwif->sg_table, 347 hwif->sg_table,
524 hwif->sg_nents, 348 hwif->sg_nents,
525 hwif->sg_dma_direction); 349 hwif->sg_dma_direction);
526 350
527 return 0; /* revert to PIO for this request */ 351 return 0; /* revert to PIO for this request */
528} 352}
529 353
530static int auide_dma_end(ide_drive_t *drive) 354static int auide_dma_end(ide_drive_t *drive)
531{ 355{
532 ide_hwif_t *hwif = HWIF(drive); 356 ide_hwif_t *hwif = HWIF(drive);
533 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; 357 _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
534 358
535 if (hwif->sg_nents) { 359 if (hwif->sg_nents) {
536 dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, 360 dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents,
537 hwif->sg_dma_direction); 361 hwif->sg_dma_direction);
538 hwif->sg_nents = 0; 362 hwif->sg_nents = 0;
539 } 363 }
540 364
541 return 0; 365 return 0;
542} 366}
543 367
544static void auide_dma_start(ide_drive_t *drive ) 368static void auide_dma_start(ide_drive_t *drive )
545{ 369{
546// printk("%s\n", __FUNCTION__);
547} 370}
548 371
549ide_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}
569 372
570static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command) 373static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command)
571{ 374{
572 //printk("%s\n", __FUNCTION__); 375 /* issue cmd to drive */
573 376 ide_execute_command(drive, command, &ide_dma_intr,
574 /* issue cmd to drive */ 377 (2*WAIT_CMD), NULL);
575 ide_execute_command(drive, command, &auide_dma_intr,
576 (2*WAIT_CMD), NULL);
577} 378}
578 379
579static int auide_dma_setup(ide_drive_t *drive) 380static int auide_dma_setup(ide_drive_t *drive)
580{ 381{
581// printk("%s\n", __FUNCTION__); 382 struct request *rq = HWGROUP(drive)->rq;
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;
589 383
590 drive->waiting_for_dma = 1; 384 if (!auide_build_dmatable(drive)) {
385 ide_map_sg(drive, rq);
386 return 1;
387 }
591 388
592 return 0; 389 drive->waiting_for_dma = 1;
390 return 0;
593} 391}
594 392
595static int auide_dma_check(ide_drive_t *drive) 393static int auide_dma_check(ide_drive_t *drive)
596{ 394{
597// printk("%s\n", __FUNCTION__); 395 u8 speed;
598 396
599#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 397#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
600 if( !dbdma_init_done ){ 398
601 auide_hwif.white_list = in_drive_list(drive->id, 399 if( dbdma_init_done == 0 ){
602 dma_white_list); 400 auide_hwif.white_list = ide_in_drive_list(drive->id,
603 auide_hwif.black_list = in_drive_list(drive->id, 401 dma_white_list);
604 dma_black_list); 402 auide_hwif.black_list = ide_in_drive_list(drive->id,
605 auide_hwif.drive = drive; 403 dma_black_list);
606 auide_ddma_init(&auide_hwif); 404 auide_hwif.drive = drive;
607 dbdma_init_done = 1; 405 auide_ddma_init(&auide_hwif);
608 } 406 dbdma_init_done = 1;
407 }
609#endif 408#endif
610 409
611 /* Is the drive in our DMA black list? */ 410 /* Is the drive in our DMA black list? */
612 if ( auide_hwif.black_list ) { 411
613 drive->using_dma = 0; 412 if ( auide_hwif.black_list ) {
614 printk("%s found in dma_blacklist[]! Disabling DMA.\n", 413 drive->using_dma = 0;
615 drive->id->model); 414
616 } 415 /* Borrowed the warning message from ide-dma.c */
617 else
618 drive->using_dma = 1;
619 416
620 return HWIF(drive)->ide_dma_host_on(drive); 417 printk(KERN_WARNING "%s: Disabling DMA for %s (blacklisted)\n",
418 drive->name, drive->id->model);
419 }
420 else
421 drive->using_dma = 1;
422
423 speed = ide_find_best_mode(drive, XFER_PIO | XFER_MWDMA);
424
425 if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
426 return HWIF(drive)->ide_dma_on(drive);
427
428 return HWIF(drive)->ide_dma_off_quietly(drive);
621} 429}
622 430
623static int auide_dma_test_irq(ide_drive_t *drive) 431static int auide_dma_test_irq(ide_drive_t *drive)
624{ 432{
625// printk("%s\n", __FUNCTION__); 433 if (drive->waiting_for_dma == 0)
626 434 printk(KERN_WARNING "%s: ide_dma_test_irq \
627 if (!drive->waiting_for_dma)
628 printk(KERN_WARNING "%s: ide_dma_test_irq \
629 called while not waiting\n", drive->name); 435 called while not waiting\n", drive->name);
630 436
631 /* If dbdma didn't execute the STOP command yet, the 437 /* If dbdma didn't execute the STOP command yet, the
632 * active bit is still set 438 * active bit is still set
633 */ 439 */
634 drive->waiting_for_dma++; 440 drive->waiting_for_dma++;
635 if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) { 441 if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) {
636 printk(KERN_WARNING "%s: timeout waiting for ddma to \ 442 printk(KERN_WARNING "%s: timeout waiting for ddma to \
637 complete\n", drive->name); 443 complete\n", drive->name);
638 return 1; 444 return 1;
639 } 445 }
640 udelay(10); 446 udelay(10);
641 return 0; 447 return 0;
642} 448}
643 449
644static int auide_dma_host_on(ide_drive_t *drive) 450static int auide_dma_host_on(ide_drive_t *drive)
645{ 451{
646// printk("%s\n", __FUNCTION__); 452 return 0;
647 return 0;
648} 453}
649 454
650static int auide_dma_on(ide_drive_t *drive) 455static int auide_dma_on(ide_drive_t *drive)
651{ 456{
652// printk("%s\n", __FUNCTION__); 457 drive->using_dma = 1;
653 drive->using_dma = 1; 458 return auide_dma_host_on(drive);
654 return auide_dma_host_on(drive);
655} 459}
656 460
657 461
658static int auide_dma_host_off(ide_drive_t *drive) 462static int auide_dma_host_off(ide_drive_t *drive)
659{ 463{
660// printk("%s\n", __FUNCTION__); 464 return 0;
661 return 0;
662} 465}
663 466
664static int auide_dma_off_quietly(ide_drive_t *drive) 467static int auide_dma_off_quietly(ide_drive_t *drive)
665{ 468{
666// printk("%s\n", __FUNCTION__); 469 drive->using_dma = 0;
667 drive->using_dma = 0; 470 return auide_dma_host_off(drive);
668 return auide_dma_host_off(drive);
669} 471}
670 472
671static int auide_dma_lostirq(ide_drive_t *drive) 473static int auide_dma_lostirq(ide_drive_t *drive)
672{ 474{
673// printk("%s\n", __FUNCTION__); 475 printk(KERN_ERR "%s: IRQ lost\n", drive->name);
674 476 return 0;
675 printk(KERN_ERR "%s: IRQ lost\n", drive->name);
676 return 0;
677} 477}
678 478
679static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs) 479static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs)
680{ 480{
681// printk("%s\n", __FUNCTION__); 481 _auide_hwif *ahwif = (_auide_hwif*)param;
682 482 ahwif->drive->waiting_for_dma = 0;
683 _auide_hwif *ahwif = (_auide_hwif*)param;
684 ahwif->drive->waiting_for_dma = 0;
685 return;
686} 483}
687 484
688static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs) 485static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs)
689{ 486{
690// printk("%s\n", __FUNCTION__); 487 _auide_hwif *ahwif = (_auide_hwif*)param;
488 ahwif->drive->waiting_for_dma = 0;
489}
490
491#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
691 492
692 _auide_hwif *ahwif = (_auide_hwif*)param; 493static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 devwidth, u32 flags)
693 ahwif->drive->waiting_for_dma = 0; 494{
694 return; 495 dev->dev_id = dev_id;
496 dev->dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
497 dev->dev_intlevel = 0;
498 dev->dev_intpolarity = 0;
499 dev->dev_tsize = tsize;
500 dev->dev_devwidth = devwidth;
501 dev->dev_flags = flags;
695} 502}
503
504#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
696 505
697static int auide_dma_timeout(ide_drive_t *drive) 506static int auide_dma_timeout(ide_drive_t *drive)
698{ 507{
699// printk("%s\n", __FUNCTION__); 508// printk("%s\n", __FUNCTION__);
700 509
701 printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name); 510 printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name);
702 511
703 if (HWIF(drive)->ide_dma_test_irq(drive)) 512 if (HWIF(drive)->ide_dma_test_irq(drive))
704 return 0; 513 return 0;
705 514
706 return HWIF(drive)->ide_dma_end(drive); 515 return HWIF(drive)->ide_dma_end(drive);
707} 516}
708#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ 517
709 518
519static int auide_ddma_init(_auide_hwif *auide) {
520
521 dbdev_tab_t source_dev_tab, target_dev_tab;
522 u32 dev_id, tsize, devwidth, flags;
523 ide_hwif_t *hwif = auide->hwif;
710 524
711static int auide_ddma_init( _auide_hwif *auide ) 525 dev_id = AU1XXX_ATA_DDMA_REQ;
712{
713// printk("%s\n", __FUNCTION__);
714 526
715 dbdev_tab_t source_dev_tab; 527 if (auide->white_list || auide->black_list) {
716#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) 528 tsize = 8;
717 dbdev_tab_t target_dev_tab; 529 devwidth = 32;
718 ide_hwif_t *hwif = auide->hwif; 530 }
719 char warning_output [2][80]; 531 else {
720 int i; 532 tsize = 1;
721#endif 533 devwidth = 16;
534
535 printk(KERN_ERR "au1xxx-ide: %s is not on ide driver whitelist.\n",auide_hwif.drive->id->model);
536 printk(KERN_ERR " please read 'Documentation/mips/AU1xxx_IDE.README'");
537 }
722 538
723 /* Add our custom device to DDMA device table */ 539#ifdef IDE_AU1XXX_BURSTMODE
724 /* Create our new device entries in the table */ 540 flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
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 541#else
784 source_dev_tab.dev_id = DSCR_CMD0_ALWAYS; 542 flags = DEV_FLAGS_SYNC;
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 543#endif
791 544
792#if CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 545 /* setup dev_tab for tx channel */
793 /* set flags for tx channel */ 546 auide_init_dbdma_dev( &source_dev_tab,
794 source_dev_tab.dev_flags = DEV_FLAGS_OUT 547 dev_id,
795 | DEV_FLAGS_SYNC 548 tsize, devwidth, DEV_FLAGS_OUT | flags);
796 | DEV_FLAGS_BURSTABLE; 549 auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
797 auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); 550
798 /* set flags for rx channel */ 551 auide_init_dbdma_dev( &source_dev_tab,
799 source_dev_tab.dev_flags = DEV_FLAGS_IN 552 dev_id,
800 | DEV_FLAGS_SYNC 553 tsize, devwidth, DEV_FLAGS_IN | flags);
801 | DEV_FLAGS_BURSTABLE; 554 auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
802 auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); 555
556 /* We also need to add a target device for the DMA */
557 auide_init_dbdma_dev( &target_dev_tab,
558 (u32)DSCR_CMD0_ALWAYS,
559 tsize, devwidth, DEV_FLAGS_ANYUSE);
560 auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab);
561
562 /* Get a channel for TX */
563 auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id,
564 auide->tx_dev_id,
565 auide_ddma_tx_callback,
566 (void*)auide);
567
568 /* Get a channel for RX */
569 auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
570 auide->target_dev_id,
571 auide_ddma_rx_callback,
572 (void*)auide);
573
574 auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
575 NUM_DESCRIPTORS);
576 auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
577 NUM_DESCRIPTORS);
578
579 hwif->dmatable_cpu = dma_alloc_coherent(auide->dev,
580 PRD_ENTRIES * PRD_BYTES, /* 1 Page */
581 &hwif->dmatable_dma, GFP_KERNEL);
582
583 au1xxx_dbdma_start( auide->tx_chan );
584 au1xxx_dbdma_start( auide->rx_chan );
585
586 return 0;
587}
803#else 588#else
804 /* set flags for tx channel */ 589
805 source_dev_tab.dev_flags = DEV_FLAGS_OUT | DEV_FLAGS_SYNC; 590static int auide_ddma_init( _auide_hwif *auide )
806 auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); 591{
807 /* set flags for rx channel */ 592 dbdev_tab_t source_dev_tab;
808 source_dev_tab.dev_flags = DEV_FLAGS_IN | DEV_FLAGS_SYNC; 593 int flags;
809 auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
810#endif
811 594
812#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) 595#ifdef IDE_AU1XXX_BURSTMODE
813 596 flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
814 auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab); 597#else
815 598 flags = DEV_FLAGS_SYNC;
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 599#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);
843 600
844#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) 601 /* setup dev_tab for tx channel */
845 hwif->dmatable_cpu = dma_alloc_coherent(auide->dev, 602 auide_init_dbdma_dev( &source_dev_tab,
846 PRD_ENTRIES * PRD_BYTES, /* 1 Page */ 603 (u32)DSCR_CMD0_ALWAYS,
847 &hwif->dmatable_dma, GFP_KERNEL); 604 8, 32, DEV_FLAGS_OUT | flags);
848 605 auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
849 auide->sg_table = kmalloc(sizeof(struct scatterlist) * PRD_ENTRIES, 606
850 GFP_KERNEL|GFP_DMA); 607 auide_init_dbdma_dev( &source_dev_tab,
851 if (auide->sg_table == NULL) { 608 (u32)DSCR_CMD0_ALWAYS,
852 return -ENOMEM; 609 8, 32, DEV_FLAGS_IN | flags);
853 } 610 auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
854#endif 611
855 au1xxx_dbdma_start( auide->tx_chan ); 612 /* Get a channel for TX */
856 au1xxx_dbdma_start( auide->rx_chan ); 613 auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS,
857 return 0; 614 auide->tx_dev_id,
615 NULL,
616 (void*)auide);
617
618 /* Get a channel for RX */
619 auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
620 DSCR_CMD0_ALWAYS,
621 NULL,
622 (void*)auide);
623
624 auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
625 NUM_DESCRIPTORS);
626 auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
627 NUM_DESCRIPTORS);
628
629 au1xxx_dbdma_start( auide->tx_chan );
630 au1xxx_dbdma_start( auide->rx_chan );
631
632 return 0;
858} 633}
634#endif
859 635
860static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif) 636static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif)
861{ 637{
862 int i; 638 int i;
863#define ide_ioreg_t unsigned long 639 unsigned long *ata_regs = hw->io_ports;
864 ide_ioreg_t *ata_regs = hw->io_ports; 640
865 641 /* FIXME? */
866 /* fixme */ 642 for (i = 0; i < IDE_CONTROL_OFFSET; i++) {
867 for (i = 0; i < IDE_CONTROL_OFFSET; i++) { 643 *ata_regs++ = ahwif->regbase + (i << AU1XXX_ATA_REG_OFFSET);
868 *ata_regs++ = (ide_ioreg_t) ahwif->regbase 644 }
869 + (ide_ioreg_t)(i << AU1XXX_ATA_REG_OFFSET); 645
870 } 646 /* set the Alternative Status register */
871 647 *ata_regs = ahwif->regbase + (14 << AU1XXX_ATA_REG_OFFSET);
872 /* set the Alternative Status register */
873 *ata_regs = (ide_ioreg_t) ahwif->regbase
874 + (ide_ioreg_t)(14 << AU1XXX_ATA_REG_OFFSET);
875} 648}
876 649
877static int au_ide_probe(struct device *dev) 650static int au_ide_probe(struct device *dev)
878{ 651{
879 struct platform_device *pdev = to_platform_device(dev); 652 struct platform_device *pdev = to_platform_device(dev);
880 _auide_hwif *ahwif = &auide_hwif; 653 _auide_hwif *ahwif = &auide_hwif;
881 ide_hwif_t *hwif; 654 ide_hwif_t *hwif;
882 struct resource *res; 655 struct resource *res;
883 int ret = 0; 656 int ret = 0;
884 657
885#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) 658#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
886 char *mode = "MWDMA2"; 659 char *mode = "MWDMA2";
887#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) 660#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
888 char *mode = "PIO+DDMA(offload)"; 661 char *mode = "PIO+DDMA(offload)";
889#endif 662#endif
890 663
891 memset(&auide_hwif, 0, sizeof(_auide_hwif)); 664 memset(&auide_hwif, 0, sizeof(_auide_hwif));
892 auide_hwif.dev = 0; 665 auide_hwif.dev = 0;
893 666
894 ahwif->dev = dev; 667 ahwif->dev = dev;
895 ahwif->irq = platform_get_irq(pdev, 0); 668 ahwif->irq = platform_get_irq(pdev, 0);
@@ -902,11 +675,11 @@ static int au_ide_probe(struct device *dev)
902 goto out; 675 goto out;
903 } 676 }
904 677
905 if (!request_mem_region (res->start, res->end-res->start, pdev->name)) { 678 if (!request_mem_region (res->start, res->end-res->start, pdev->name)) {
906 pr_debug("%s: request_mem_region failed\n", DRV_NAME); 679 pr_debug("%s: request_mem_region failed\n", DRV_NAME);
907 ret = -EBUSY; 680 ret = -EBUSY;
908 goto out; 681 goto out;
909 } 682 }
910 683
911 ahwif->regbase = (u32)ioremap(res->start, res->end-res->start); 684 ahwif->regbase = (u32)ioremap(res->start, res->end-res->start);
912 if (ahwif->regbase == 0) { 685 if (ahwif->regbase == 0) {
@@ -914,130 +687,92 @@ static int au_ide_probe(struct device *dev)
914 goto out; 687 goto out;
915 } 688 }
916 689
917 hwif = &ide_hwifs[pdev->id]; 690 /* FIXME: This might possibly break PCMCIA IDE devices */
691
692 hwif = &ide_hwifs[pdev->id];
918 hw_regs_t *hw = &hwif->hw; 693 hw_regs_t *hw = &hwif->hw;
919 hwif->irq = hw->irq = ahwif->irq; 694 hwif->irq = hw->irq = ahwif->irq;
920 hwif->chipset = ide_au1xxx; 695 hwif->chipset = ide_au1xxx;
921 696
922 auide_setup_ports(hw, ahwif); 697 auide_setup_ports(hw, ahwif);
923 memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); 698 memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
924 699
925#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ 700 hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
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 701#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
935 hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */ 702 hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */
936 hwif->swdma_mask = 0x07; 703 hwif->swdma_mask = 0x00;
937#else 704#else
938 hwif->mwdma_mask = 0x0; 705 hwif->mwdma_mask = 0x0;
939 hwif->swdma_mask = 0x0; 706 hwif->swdma_mask = 0x0;
707#endif
708
709 hwif->noprobe = 0;
710 hwif->drives[0].unmask = 1;
711 hwif->drives[1].unmask = 1;
712
713 /* hold should be on in all cases */
714 hwif->hold = 1;
715 hwif->mmio = 2;
716
717 /* If the user has selected DDMA assisted copies,
718 then set up a few local I/O function entry points
719 */
720
721#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
722 hwif->INSW = auide_insw;
723 hwif->OUTSW = auide_outsw;
940#endif 724#endif
941 //hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 725
942 hwif->noprobe = 0; 726 hwif->tuneproc = &auide_tune_drive;
943 hwif->drives[0].unmask = 1; 727 hwif->speedproc = &auide_tune_chipset;
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;
965 728
966#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 729#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
967 hwif->ide_dma_off_quietly = &auide_dma_off_quietly; 730 hwif->ide_dma_off_quietly = &auide_dma_off_quietly;
968 hwif->ide_dma_timeout = &auide_dma_timeout; 731 hwif->ide_dma_timeout = &auide_dma_timeout;
969 732
970 hwif->ide_dma_check = &auide_dma_check; 733 hwif->ide_dma_check = &auide_dma_check;
971 hwif->dma_exec_cmd = &auide_dma_exec_cmd; 734 hwif->dma_exec_cmd = &auide_dma_exec_cmd;
972 hwif->dma_start = &auide_dma_start; 735 hwif->dma_start = &auide_dma_start;
973 hwif->ide_dma_end = &auide_dma_end; 736 hwif->ide_dma_end = &auide_dma_end;
974 hwif->dma_setup = &auide_dma_setup; 737 hwif->dma_setup = &auide_dma_setup;
975 hwif->ide_dma_test_irq = &auide_dma_test_irq; 738 hwif->ide_dma_test_irq = &auide_dma_test_irq;
976 hwif->ide_dma_host_off = &auide_dma_host_off; 739 hwif->ide_dma_host_off = &auide_dma_host_off;
977 hwif->ide_dma_host_on = &auide_dma_host_on; 740 hwif->ide_dma_host_on = &auide_dma_host_on;
978 hwif->ide_dma_lostirq = &auide_dma_lostirq; 741 hwif->ide_dma_lostirq = &auide_dma_lostirq;
979 hwif->ide_dma_on = &auide_dma_on; 742 hwif->ide_dma_on = &auide_dma_on;
980 743
981 hwif->autodma = 1; 744 hwif->autodma = 1;
982 hwif->drives[0].autodma = hwif->autodma; 745 hwif->drives[0].autodma = hwif->autodma;
983 hwif->drives[1].autodma = hwif->autodma; 746 hwif->drives[1].autodma = hwif->autodma;
984 hwif->atapi_dma = 1; 747 hwif->atapi_dma = 1;
985 hwif->drives[0].using_dma = 1; 748
986 hwif->drives[1].using_dma = 1;
987#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ 749#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
988 hwif->autodma = 0; 750 hwif->autodma = 0;
989 hwif->channel = 0; 751 hwif->channel = 0;
990 hwif->hold = 1; 752 hwif->hold = 1;
991 hwif->select_data = 0; /* no chipset-specific code */ 753 hwif->select_data = 0; /* no chipset-specific code */
992 hwif->config_data = 0; /* no chipset-specific code */ 754 hwif->config_data = 0; /* no chipset-specific code */
993 755
994 hwif->drives[0].autodma = 0; 756 hwif->drives[0].autodma = 0;
995 hwif->drives[0].drive_data = 0; /* no drive data */ 757 hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */
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 758#endif
759 hwif->drives[0].no_io_32bit = 1;
1025 760
1026 auide_hwif.hwif = hwif; 761 auide_hwif.hwif = hwif;
1027 hwif->hwif_data = &auide_hwif; 762 hwif->hwif_data = &auide_hwif;
1028 763
1029#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA 764#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
1030 auide_ddma_init(&auide_hwif); 765 auide_ddma_init(&auide_hwif);
1031 dbdma_init_done = 1; 766 dbdma_init_done = 1;
1032#endif 767#endif
1033 768
1034 probe_hwif_init(hwif); 769 probe_hwif_init(hwif);
1035 dev_set_drvdata(dev, hwif); 770 dev_set_drvdata(dev, hwif);
1036 771
1037 printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); 772 printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode );
1038 773
1039out: 774 out:
1040 return ret; 775 return ret;
1041} 776}
1042 777
1043static int au_ide_remove(struct device *dev) 778static int au_ide_remove(struct device *dev)
@@ -1045,7 +780,7 @@ static int au_ide_remove(struct device *dev)
1045 struct platform_device *pdev = to_platform_device(dev); 780 struct platform_device *pdev = to_platform_device(dev);
1046 struct resource *res; 781 struct resource *res;
1047 ide_hwif_t *hwif = dev_get_drvdata(dev); 782 ide_hwif_t *hwif = dev_get_drvdata(dev);
1048 _auide_hwif *ahwif = &auide_hwif; 783 _auide_hwif *ahwif = &auide_hwif;
1049 784
1050 ide_unregister(hwif - ide_hwifs); 785 ide_unregister(hwif - ide_hwifs);
1051 786
@@ -1069,180 +804,11 @@ static int __init au_ide_init(void)
1069 return driver_register(&au1200_ide_driver); 804 return driver_register(&au1200_ide_driver);
1070} 805}
1071 806
1072static void __init au_ide_exit(void) 807static void __exit au_ide_exit(void)
1073{ 808{
1074 driver_unregister(&au1200_ide_driver); 809 driver_unregister(&au1200_ide_driver);
1075} 810}
1076 811
1077#ifdef CONFIG_PM
1078int 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
1121static int au1xxxide_pm_standby( au1xxx_power_dev_t *dev ) {
1122 return 0;
1123}
1124
1125static 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
1174static 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
1226static int au1xxxide_pm_getstatus( au1xxx_power_dev_t *dev ) {
1227 return dev->cur_state;
1228}
1229
1230static 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
1237static int au1xxxide_pm_idle( au1xxx_power_dev_t *dev ) {
1238 return 0;
1239}
1240
1241static int au1xxxide_pm_cleanup( au1xxx_power_dev_t *dev ) {
1242 return 0;
1243}
1244#endif /* CONFIG_PM */
1245
1246MODULE_LICENSE("GPL"); 812MODULE_LICENSE("GPL");
1247MODULE_DESCRIPTION("AU1200 IDE driver"); 813MODULE_DESCRIPTION("AU1200 IDE driver");
1248 814
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-13 03:27:22 -0500