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d15d6e6c JJIL |
1 | /* |
2 | * pata_atp867x.c - ARTOP 867X 64bit 4-channel UDMA133 ATA controller driver | |
3 | * | |
4 | * (C) 2009 Google Inc. John(Jung-Ik) Lee <jilee@google.com> | |
5 | * | |
6 | * Per Atp867 data sheet rev 1.2, Acard. | |
7 | * Based in part on early ide code from | |
8 | * 2003-2004 by Eric Uhrhane, Google, Inc. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | * | |
25 | * TODO: | |
26 | * 1. RAID features [comparison, XOR, striping, mirroring, etc.] | |
27 | */ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/blkdev.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/device.h> | |
36 | #include <scsi/scsi_host.h> | |
37 | #include <linux/libata.h> | |
38 | ||
39 | #define DRV_NAME "pata_atp867x" | |
40 | #define DRV_VERSION "0.7.5" | |
41 | ||
42 | /* | |
43 | * IO Registers | |
44 | * Note that all runtime hot priv ports are cached in ap private_data | |
45 | */ | |
46 | ||
47 | enum { | |
48 | ATP867X_IO_CHANNEL_OFFSET = 0x10, | |
49 | ||
50 | /* | |
51 | * IO Register Bitfields | |
52 | */ | |
53 | ||
54 | ATP867X_IO_PIOSPD_ACTIVE_SHIFT = 4, | |
55 | ATP867X_IO_PIOSPD_RECOVER_SHIFT = 0, | |
56 | ||
57 | ATP867X_IO_DMAMODE_MSTR_SHIFT = 0, | |
58 | ATP867X_IO_DMAMODE_MSTR_MASK = 0x07, | |
59 | ATP867X_IO_DMAMODE_SLAVE_SHIFT = 4, | |
60 | ATP867X_IO_DMAMODE_SLAVE_MASK = 0x70, | |
61 | ||
62 | ATP867X_IO_DMAMODE_UDMA_6 = 0x07, | |
63 | ATP867X_IO_DMAMODE_UDMA_5 = 0x06, | |
64 | ATP867X_IO_DMAMODE_UDMA_4 = 0x05, | |
65 | ATP867X_IO_DMAMODE_UDMA_3 = 0x04, | |
66 | ATP867X_IO_DMAMODE_UDMA_2 = 0x03, | |
67 | ATP867X_IO_DMAMODE_UDMA_1 = 0x02, | |
68 | ATP867X_IO_DMAMODE_UDMA_0 = 0x01, | |
69 | ATP867X_IO_DMAMODE_DISABLE = 0x00, | |
70 | ||
71 | ATP867X_IO_SYS_INFO_66MHZ = 0x04, | |
72 | ATP867X_IO_SYS_INFO_SLOW_UDMA5 = 0x02, | |
73 | ATP867X_IO_SYS_MASK_RESERVED = (~0xf1), | |
74 | ||
75 | ATP867X_IO_PORTSPD_VAL = 0x1143, | |
76 | ATP867X_PREREAD_VAL = 0x0200, | |
77 | ||
78 | ATP867X_NUM_PORTS = 4, | |
79 | ATP867X_BAR_IOBASE = 0, | |
80 | ATP867X_BAR_ROMBASE = 6, | |
81 | }; | |
82 | ||
83 | #define ATP867X_IOBASE(ap) ((ap)->host->iomap[0]) | |
84 | #define ATP867X_SYS_INFO(ap) (0x3F + ATP867X_IOBASE(ap)) | |
85 | ||
86 | #define ATP867X_IO_PORTBASE(ap, port) (0x00 + ATP867X_IOBASE(ap) + \ | |
87 | (port) * ATP867X_IO_CHANNEL_OFFSET) | |
88 | #define ATP867X_IO_DMABASE(ap, port) (0x40 + \ | |
89 | ATP867X_IO_PORTBASE((ap), (port))) | |
90 | ||
91 | #define ATP867X_IO_STATUS(ap, port) (0x07 + \ | |
92 | ATP867X_IO_PORTBASE((ap), (port))) | |
93 | #define ATP867X_IO_ALTSTATUS(ap, port) (0x0E + \ | |
94 | ATP867X_IO_PORTBASE((ap), (port))) | |
95 | ||
96 | /* | |
97 | * hot priv ports | |
98 | */ | |
99 | #define ATP867X_IO_MSTRPIOSPD(ap, port) (0x08 + \ | |
100 | ATP867X_IO_DMABASE((ap), (port))) | |
101 | #define ATP867X_IO_SLAVPIOSPD(ap, port) (0x09 + \ | |
102 | ATP867X_IO_DMABASE((ap), (port))) | |
103 | #define ATP867X_IO_8BPIOSPD(ap, port) (0x0A + \ | |
104 | ATP867X_IO_DMABASE((ap), (port))) | |
105 | #define ATP867X_IO_DMAMODE(ap, port) (0x0B + \ | |
106 | ATP867X_IO_DMABASE((ap), (port))) | |
107 | ||
108 | #define ATP867X_IO_PORTSPD(ap, port) (0x4A + \ | |
109 | ATP867X_IO_PORTBASE((ap), (port))) | |
110 | #define ATP867X_IO_PREREAD(ap, port) (0x4C + \ | |
111 | ATP867X_IO_PORTBASE((ap), (port))) | |
112 | ||
113 | struct atp867x_priv { | |
114 | void __iomem *dma_mode; | |
115 | void __iomem *mstr_piospd; | |
116 | void __iomem *slave_piospd; | |
117 | void __iomem *eightb_piospd; | |
118 | int pci66mhz; | |
119 | }; | |
120 | ||
d15d6e6c JJIL |
121 | static void atp867x_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
122 | { | |
123 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); | |
124 | struct atp867x_priv *dp = ap->private_data; | |
125 | u8 speed = adev->dma_mode; | |
126 | u8 b; | |
566b54c8 | 127 | u8 mode = speed - XFER_UDMA_0 + 1; |
d15d6e6c JJIL |
128 | |
129 | /* | |
130 | * Doc 6.6.9: decrease the udma mode value by 1 for safer UDMA speed | |
131 | * on 66MHz bus | |
132 | * rev-A: UDMA_1~4 (5, 6 no change) | |
133 | * rev-B: all UDMA modes | |
134 | * UDMA_0 stays not to disable UDMA | |
135 | */ | |
136 | if (dp->pci66mhz && mode > ATP867X_IO_DMAMODE_UDMA_0 && | |
137 | (pdev->device == PCI_DEVICE_ID_ARTOP_ATP867B || | |
138 | mode < ATP867X_IO_DMAMODE_UDMA_5)) | |
139 | mode--; | |
140 | ||
141 | b = ioread8(dp->dma_mode); | |
142 | if (adev->devno & 1) { | |
143 | b = (b & ~ATP867X_IO_DMAMODE_SLAVE_MASK) | | |
144 | (mode << ATP867X_IO_DMAMODE_SLAVE_SHIFT); | |
145 | } else { | |
146 | b = (b & ~ATP867X_IO_DMAMODE_MSTR_MASK) | | |
147 | (mode << ATP867X_IO_DMAMODE_MSTR_SHIFT); | |
148 | } | |
149 | iowrite8(b, dp->dma_mode); | |
150 | } | |
151 | ||
64207f59 JJIL |
152 | static int atp867x_get_active_clocks_shifted(struct ata_port *ap, |
153 | unsigned int clk) | |
d15d6e6c | 154 | { |
64207f59 | 155 | struct atp867x_priv *dp = ap->private_data; |
d15d6e6c JJIL |
156 | unsigned char clocks = clk; |
157 | ||
c59bcc37 BZ |
158 | /* |
159 | * Doc 6.6.9: increase the clock value by 1 for safer PIO speed | |
160 | * on 66MHz bus | |
161 | */ | |
162 | if (dp->pci66mhz) | |
163 | clocks++; | |
164 | ||
d15d6e6c JJIL |
165 | switch (clocks) { |
166 | case 0: | |
167 | clocks = 1; | |
168 | break; | |
c59bcc37 | 169 | case 1 ... 6: |
d15d6e6c JJIL |
170 | break; |
171 | default: | |
172 | printk(KERN_WARNING "ATP867X: active %dclk is invalid. " | |
c59bcc37 BZ |
173 | "Using 12clk.\n", clk); |
174 | case 9 ... 12: | |
175 | clocks = 7; /* 12 clk */ | |
176 | break; | |
177 | case 7: | |
64207f59 JJIL |
178 | case 8: /* default 8 clk */ |
179 | clocks = 0; | |
180 | goto active_clock_shift_done; | |
d15d6e6c | 181 | } |
64207f59 | 182 | |
64207f59 | 183 | active_clock_shift_done: |
d15d6e6c JJIL |
184 | return clocks << ATP867X_IO_PIOSPD_ACTIVE_SHIFT; |
185 | } | |
186 | ||
187 | static int atp867x_get_recover_clocks_shifted(unsigned int clk) | |
188 | { | |
189 | unsigned char clocks = clk; | |
190 | ||
191 | switch (clocks) { | |
192 | case 0: | |
193 | clocks = 1; | |
194 | break; | |
195 | case 1 ... 11: | |
196 | break; | |
c59bcc37 BZ |
197 | case 13: |
198 | case 14: | |
64207f59 | 199 | --clocks; /* by the spec */ |
d15d6e6c JJIL |
200 | break; |
201 | case 15: | |
202 | break; | |
203 | default: | |
204 | printk(KERN_WARNING "ATP867X: recover %dclk is invalid. " | |
64207f59 JJIL |
205 | "Using default 12clk.\n", clk); |
206 | case 12: /* default 12 clk */ | |
207 | clocks = 0; | |
d15d6e6c JJIL |
208 | break; |
209 | } | |
64207f59 | 210 | |
d15d6e6c JJIL |
211 | return clocks << ATP867X_IO_PIOSPD_RECOVER_SHIFT; |
212 | } | |
213 | ||
214 | static void atp867x_set_piomode(struct ata_port *ap, struct ata_device *adev) | |
215 | { | |
216 | struct ata_device *peer = ata_dev_pair(adev); | |
217 | struct atp867x_priv *dp = ap->private_data; | |
218 | u8 speed = adev->pio_mode; | |
219 | struct ata_timing t, p; | |
220 | int T, UT; | |
221 | u8 b; | |
222 | ||
223 | T = 1000000000 / 33333; | |
224 | UT = T / 4; | |
225 | ||
226 | ata_timing_compute(adev, speed, &t, T, UT); | |
227 | if (peer && peer->pio_mode) { | |
228 | ata_timing_compute(peer, peer->pio_mode, &p, T, UT); | |
229 | ata_timing_merge(&p, &t, &t, ATA_TIMING_8BIT); | |
230 | } | |
231 | ||
232 | b = ioread8(dp->dma_mode); | |
233 | if (adev->devno & 1) | |
234 | b = (b & ~ATP867X_IO_DMAMODE_SLAVE_MASK); | |
235 | else | |
236 | b = (b & ~ATP867X_IO_DMAMODE_MSTR_MASK); | |
237 | iowrite8(b, dp->dma_mode); | |
238 | ||
64207f59 | 239 | b = atp867x_get_active_clocks_shifted(ap, t.active) | |
c59bcc37 | 240 | atp867x_get_recover_clocks_shifted(t.recover); |
d15d6e6c JJIL |
241 | |
242 | if (adev->devno & 1) | |
243 | iowrite8(b, dp->slave_piospd); | |
244 | else | |
245 | iowrite8(b, dp->mstr_piospd); | |
246 | ||
c59bcc37 BZ |
247 | b = atp867x_get_active_clocks_shifted(ap, t.act8b) | |
248 | atp867x_get_recover_clocks_shifted(t.rec8b); | |
249 | ||
d15d6e6c JJIL |
250 | iowrite8(b, dp->eightb_piospd); |
251 | } | |
252 | ||
64207f59 JJIL |
253 | static int atp867x_cable_override(struct pci_dev *pdev) |
254 | { | |
255 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_ARTOP && | |
256 | (pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867A || | |
257 | pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867B)) { | |
258 | return 1; | |
259 | } | |
260 | return 0; | |
261 | } | |
262 | ||
d15d6e6c JJIL |
263 | static int atp867x_cable_detect(struct ata_port *ap) |
264 | { | |
64207f59 JJIL |
265 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
266 | ||
267 | if (atp867x_cable_override(pdev)) | |
268 | return ATA_CBL_PATA40_SHORT; | |
269 | ||
270 | return ATA_CBL_PATA_UNK; | |
d15d6e6c JJIL |
271 | } |
272 | ||
273 | static struct scsi_host_template atp867x_sht = { | |
274 | ATA_BMDMA_SHT(DRV_NAME), | |
275 | }; | |
276 | ||
277 | static struct ata_port_operations atp867x_ops = { | |
278 | .inherits = &ata_bmdma_port_ops, | |
279 | .cable_detect = atp867x_cable_detect, | |
280 | .set_piomode = atp867x_set_piomode, | |
281 | .set_dmamode = atp867x_set_dmamode, | |
282 | }; | |
283 | ||
284 | ||
285 | #ifdef ATP867X_DEBUG | |
286 | static void atp867x_check_res(struct pci_dev *pdev) | |
287 | { | |
288 | int i; | |
289 | unsigned long start, len; | |
290 | ||
291 | /* Check the PCI resources for this channel are enabled */ | |
292 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
293 | start = pci_resource_start(pdev, i); | |
294 | len = pci_resource_len(pdev, i); | |
295 | printk(KERN_DEBUG "ATP867X: resource start:len=%lx:%lx\n", | |
296 | start, len); | |
297 | } | |
298 | } | |
299 | ||
300 | static void atp867x_check_ports(struct ata_port *ap, int port) | |
301 | { | |
302 | struct ata_ioports *ioaddr = &ap->ioaddr; | |
303 | struct atp867x_priv *dp = ap->private_data; | |
304 | ||
305 | printk(KERN_DEBUG "ATP867X: port[%d] addresses\n" | |
306 | " cmd_addr =0x%llx, 0x%llx\n" | |
307 | " ctl_addr =0x%llx, 0x%llx\n" | |
308 | " bmdma_addr =0x%llx, 0x%llx\n" | |
309 | " data_addr =0x%llx\n" | |
310 | " error_addr =0x%llx\n" | |
311 | " feature_addr =0x%llx\n" | |
312 | " nsect_addr =0x%llx\n" | |
313 | " lbal_addr =0x%llx\n" | |
314 | " lbam_addr =0x%llx\n" | |
315 | " lbah_addr =0x%llx\n" | |
316 | " device_addr =0x%llx\n" | |
317 | " status_addr =0x%llx\n" | |
318 | " command_addr =0x%llx\n" | |
319 | " dp->dma_mode =0x%llx\n" | |
320 | " dp->mstr_piospd =0x%llx\n" | |
321 | " dp->slave_piospd =0x%llx\n" | |
322 | " dp->eightb_piospd =0x%llx\n" | |
323 | " dp->pci66mhz =0x%lx\n", | |
324 | port, | |
325 | (unsigned long long)ioaddr->cmd_addr, | |
326 | (unsigned long long)ATP867X_IO_PORTBASE(ap, port), | |
327 | (unsigned long long)ioaddr->ctl_addr, | |
328 | (unsigned long long)ATP867X_IO_ALTSTATUS(ap, port), | |
329 | (unsigned long long)ioaddr->bmdma_addr, | |
330 | (unsigned long long)ATP867X_IO_DMABASE(ap, port), | |
331 | (unsigned long long)ioaddr->data_addr, | |
332 | (unsigned long long)ioaddr->error_addr, | |
333 | (unsigned long long)ioaddr->feature_addr, | |
334 | (unsigned long long)ioaddr->nsect_addr, | |
335 | (unsigned long long)ioaddr->lbal_addr, | |
336 | (unsigned long long)ioaddr->lbam_addr, | |
337 | (unsigned long long)ioaddr->lbah_addr, | |
338 | (unsigned long long)ioaddr->device_addr, | |
339 | (unsigned long long)ioaddr->status_addr, | |
340 | (unsigned long long)ioaddr->command_addr, | |
341 | (unsigned long long)dp->dma_mode, | |
342 | (unsigned long long)dp->mstr_piospd, | |
343 | (unsigned long long)dp->slave_piospd, | |
344 | (unsigned long long)dp->eightb_piospd, | |
345 | (unsigned long)dp->pci66mhz); | |
346 | } | |
347 | #endif | |
348 | ||
349 | static int atp867x_set_priv(struct ata_port *ap) | |
350 | { | |
351 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); | |
352 | struct atp867x_priv *dp; | |
353 | int port = ap->port_no; | |
354 | ||
355 | dp = ap->private_data = | |
356 | devm_kzalloc(&pdev->dev, sizeof(*dp), GFP_KERNEL); | |
357 | if (dp == NULL) | |
358 | return -ENOMEM; | |
359 | ||
360 | dp->dma_mode = ATP867X_IO_DMAMODE(ap, port); | |
361 | dp->mstr_piospd = ATP867X_IO_MSTRPIOSPD(ap, port); | |
362 | dp->slave_piospd = ATP867X_IO_SLAVPIOSPD(ap, port); | |
363 | dp->eightb_piospd = ATP867X_IO_8BPIOSPD(ap, port); | |
364 | ||
365 | dp->pci66mhz = | |
366 | ioread8(ATP867X_SYS_INFO(ap)) & ATP867X_IO_SYS_INFO_66MHZ; | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static void atp867x_fixup(struct ata_host *host) | |
372 | { | |
373 | struct pci_dev *pdev = to_pci_dev(host->dev); | |
374 | struct ata_port *ap = host->ports[0]; | |
375 | int i; | |
376 | u8 v; | |
377 | ||
378 | /* | |
379 | * Broken BIOS might not set latency high enough | |
380 | */ | |
381 | pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &v); | |
382 | if (v < 0x80) { | |
383 | v = 0x80; | |
384 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, v); | |
385 | printk(KERN_DEBUG "ATP867X: set latency timer of device %s" | |
386 | " to %d\n", pci_name(pdev), v); | |
387 | } | |
388 | ||
389 | /* | |
390 | * init 8bit io ports speed(0aaarrrr) to 43h and | |
391 | * init udma modes of master/slave to 0/0(11h) | |
392 | */ | |
393 | for (i = 0; i < ATP867X_NUM_PORTS; i++) | |
394 | iowrite16(ATP867X_IO_PORTSPD_VAL, ATP867X_IO_PORTSPD(ap, i)); | |
395 | ||
396 | /* | |
397 | * init PreREAD counts | |
398 | */ | |
399 | for (i = 0; i < ATP867X_NUM_PORTS; i++) | |
400 | iowrite16(ATP867X_PREREAD_VAL, ATP867X_IO_PREREAD(ap, i)); | |
401 | ||
402 | v = ioread8(ATP867X_IOBASE(ap) + 0x28); | |
403 | v &= 0xcf; /* Enable INTA#: bit4=0 means enable */ | |
404 | v |= 0xc0; /* Enable PCI burst, MRM & not immediate interrupts */ | |
405 | iowrite8(v, ATP867X_IOBASE(ap) + 0x28); | |
406 | ||
407 | /* | |
408 | * Turn off the over clocked udma5 mode, only for Rev-B | |
409 | */ | |
410 | v = ioread8(ATP867X_SYS_INFO(ap)); | |
411 | v &= ATP867X_IO_SYS_MASK_RESERVED; | |
412 | if (pdev->device == PCI_DEVICE_ID_ARTOP_ATP867B) | |
413 | v |= ATP867X_IO_SYS_INFO_SLOW_UDMA5; | |
414 | iowrite8(v, ATP867X_SYS_INFO(ap)); | |
415 | } | |
416 | ||
417 | static int atp867x_ata_pci_sff_init_host(struct ata_host *host) | |
418 | { | |
419 | struct device *gdev = host->dev; | |
420 | struct pci_dev *pdev = to_pci_dev(gdev); | |
421 | unsigned int mask = 0; | |
422 | int i, rc; | |
423 | ||
424 | /* | |
425 | * do not map rombase | |
426 | */ | |
427 | rc = pcim_iomap_regions(pdev, 1 << ATP867X_BAR_IOBASE, DRV_NAME); | |
428 | if (rc == -EBUSY) | |
429 | pcim_pin_device(pdev); | |
430 | if (rc) | |
431 | return rc; | |
432 | host->iomap = pcim_iomap_table(pdev); | |
433 | ||
434 | #ifdef ATP867X_DEBUG | |
435 | atp867x_check_res(pdev); | |
436 | ||
437 | for (i = 0; i < PCI_ROM_RESOURCE; i++) | |
438 | printk(KERN_DEBUG "ATP867X: iomap[%d]=0x%llx\n", i, | |
439 | (unsigned long long)(host->iomap[i])); | |
440 | #endif | |
441 | ||
442 | /* | |
443 | * request, iomap BARs and init port addresses accordingly | |
444 | */ | |
445 | for (i = 0; i < host->n_ports; i++) { | |
446 | struct ata_port *ap = host->ports[i]; | |
447 | struct ata_ioports *ioaddr = &ap->ioaddr; | |
448 | ||
449 | ioaddr->cmd_addr = ATP867X_IO_PORTBASE(ap, i); | |
450 | ioaddr->ctl_addr = ioaddr->altstatus_addr | |
451 | = ATP867X_IO_ALTSTATUS(ap, i); | |
452 | ioaddr->bmdma_addr = ATP867X_IO_DMABASE(ap, i); | |
453 | ||
454 | ata_sff_std_ports(ioaddr); | |
455 | rc = atp867x_set_priv(ap); | |
456 | if (rc) | |
457 | return rc; | |
458 | ||
459 | #ifdef ATP867X_DEBUG | |
460 | atp867x_check_ports(ap, i); | |
461 | #endif | |
462 | ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", | |
463 | (unsigned long)ioaddr->cmd_addr, | |
464 | (unsigned long)ioaddr->ctl_addr); | |
465 | ata_port_desc(ap, "bmdma 0x%lx", | |
466 | (unsigned long)ioaddr->bmdma_addr); | |
467 | ||
468 | mask |= 1 << i; | |
469 | } | |
470 | ||
471 | if (!mask) { | |
472 | dev_printk(KERN_ERR, gdev, "no available native port\n"); | |
473 | return -ENODEV; | |
474 | } | |
475 | ||
476 | atp867x_fixup(host); | |
477 | ||
478 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); | |
479 | if (rc) | |
480 | return rc; | |
481 | ||
482 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); | |
483 | return rc; | |
484 | } | |
485 | ||
486 | static int atp867x_init_one(struct pci_dev *pdev, | |
487 | const struct pci_device_id *id) | |
488 | { | |
489 | static int printed_version; | |
490 | static const struct ata_port_info info_867x = { | |
491 | .flags = ATA_FLAG_SLAVE_POSS, | |
492 | .pio_mask = ATA_PIO4, | |
d15d6e6c JJIL |
493 | .udma_mask = ATA_UDMA6, |
494 | .port_ops = &atp867x_ops, | |
495 | }; | |
496 | ||
497 | struct ata_host *host; | |
498 | const struct ata_port_info *ppi[] = { &info_867x, NULL }; | |
499 | int rc; | |
500 | ||
501 | if (!printed_version++) | |
502 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); | |
503 | ||
504 | rc = pcim_enable_device(pdev); | |
505 | if (rc) | |
506 | return rc; | |
507 | ||
508 | printk(KERN_INFO "ATP867X: ATP867 ATA UDMA133 controller (rev %02X)", | |
509 | pdev->device); | |
510 | ||
511 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, ATP867X_NUM_PORTS); | |
512 | if (!host) { | |
513 | dev_printk(KERN_ERR, &pdev->dev, | |
514 | "failed to allocate ATA host\n"); | |
515 | rc = -ENOMEM; | |
516 | goto err_out; | |
517 | } | |
518 | ||
519 | rc = atp867x_ata_pci_sff_init_host(host); | |
520 | if (rc) { | |
521 | dev_printk(KERN_ERR, &pdev->dev, "failed to init host\n"); | |
522 | goto err_out; | |
523 | } | |
524 | ||
525 | pci_set_master(pdev); | |
526 | ||
527 | rc = ata_host_activate(host, pdev->irq, ata_sff_interrupt, | |
528 | IRQF_SHARED, &atp867x_sht); | |
529 | if (rc) | |
530 | dev_printk(KERN_ERR, &pdev->dev, "failed to activate host\n"); | |
531 | ||
532 | err_out: | |
533 | return rc; | |
534 | } | |
535 | ||
536 | static struct pci_device_id atp867x_pci_tbl[] = { | |
537 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867A), 0 }, | |
538 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867B), 0 }, | |
539 | { }, | |
540 | }; | |
541 | ||
542 | static struct pci_driver atp867x_driver = { | |
543 | .name = DRV_NAME, | |
544 | .id_table = atp867x_pci_tbl, | |
545 | .probe = atp867x_init_one, | |
546 | .remove = ata_pci_remove_one, | |
547 | }; | |
548 | ||
549 | static int __init atp867x_init(void) | |
550 | { | |
551 | return pci_register_driver(&atp867x_driver); | |
552 | } | |
553 | ||
554 | static void __exit atp867x_exit(void) | |
555 | { | |
556 | pci_unregister_driver(&atp867x_driver); | |
557 | } | |
558 | ||
559 | MODULE_AUTHOR("John(Jung-Ik) Lee, Google Inc."); | |
560 | MODULE_DESCRIPTION("low level driver for Artop/Acard 867x ATA controller"); | |
561 | MODULE_LICENSE("GPL"); | |
562 | MODULE_DEVICE_TABLE(pci, atp867x_pci_tbl); | |
563 | MODULE_VERSION(DRV_VERSION); | |
564 | ||
565 | module_init(atp867x_init); | |
566 | module_exit(atp867x_exit); |