Blame view
drivers/ata/pata_atiixp.c
8.5 KB
669a5db41 [libata] Add a bu... |
1 2 3 |
/* * pata_atiixp.c - ATI PATA for new ATA layer * (C) 2005 Red Hat Inc |
e99846f18 [libata] pata_ati... |
4 |
* (C) 2009-2010 Bartlomiej Zolnierkiewicz |
669a5db41 [libata] Add a bu... |
5 6 7 8 9 10 11 12 13 14 15 16 17 |
* * Based on * * linux/drivers/ide/pci/atiixp.c Version 0.01-bart2 Feb. 26, 2004 * * Copyright (C) 2003 ATI Inc. <hyu@ati.com> * Copyright (C) 2004 Bartlomiej Zolnierkiewicz * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> |
669a5db41 [libata] Add a bu... |
18 19 20 21 |
#include <linux/blkdev.h> #include <linux/delay.h> #include <scsi/scsi_host.h> #include <linux/libata.h> |
1117c811a pata_atiixp: over... |
22 |
#include <linux/dmi.h> |
669a5db41 [libata] Add a bu... |
23 24 |
#define DRV_NAME "pata_atiixp" |
2a3103ce4 [libata] Bump dri... |
25 |
#define DRV_VERSION "0.4.6" |
669a5db41 [libata] Add a bu... |
26 27 28 29 30 31 32 33 34 |
enum { ATIIXP_IDE_PIO_TIMING = 0x40, ATIIXP_IDE_MWDMA_TIMING = 0x44, ATIIXP_IDE_PIO_CONTROL = 0x48, ATIIXP_IDE_PIO_MODE = 0x4a, ATIIXP_IDE_UDMA_CONTROL = 0x54, ATIIXP_IDE_UDMA_MODE = 0x56 }; |
1117c811a pata_atiixp: over... |
35 36 37 38 39 40 41 42 43 44 45 |
static const struct dmi_system_id attixp_cable_override_dmi_table[] = { { /* Board has onboard PATA<->SATA converters */ .ident = "MSI E350DM-E33", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "MSI"), DMI_MATCH(DMI_BOARD_NAME, "E350DM-E33(MS-7720)"), }, }, { } }; |
847086069 pata_atiixp: supp... |
46 47 48 49 |
static int atiixp_cable_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 udma; |
1117c811a pata_atiixp: over... |
50 51 |
if (dmi_check_system(attixp_cable_override_dmi_table)) return ATA_CBL_PATA40_SHORT; |
847086069 pata_atiixp: supp... |
52 53 54 55 56 57 58 |
/* Hack from drivers/ide/pci. Really we want to know how to do the raw detection not play follow the bios mode guess */ pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma); if ((udma & 0x07) >= 0x04 || (udma & 0x70) >= 0x40) return ATA_CBL_PATA80; return ATA_CBL_PATA40; } |
e99846f18 [libata] pata_ati... |
59 |
static DEFINE_SPINLOCK(atiixp_lock); |
669a5db41 [libata] Add a bu... |
60 |
/** |
46b9e7707 pata_atiixp: add ... |
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 |
* atiixp_prereset - perform reset handling * @link: ATA link * @deadline: deadline jiffies for the operation * * Reset sequence checking enable bits to see which ports are * active. */ static int atiixp_prereset(struct ata_link *link, unsigned long deadline) { static const struct pci_bits atiixp_enable_bits[] = { { 0x48, 1, 0x01, 0x00 }, { 0x48, 1, 0x08, 0x00 } }; struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) return -ENOENT; return ata_sff_prereset(link, deadline); } /** |
669a5db41 [libata] Add a bu... |
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 |
* atiixp_set_pio_timing - set initial PIO mode data * @ap: ATA interface * @adev: ATA device * * Called by both the pio and dma setup functions to set the controller * timings for PIO transfers. We must load both the mode number and * timing values into the controller. */ static void atiixp_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio) { static u8 pio_timings[5] = { 0x5D, 0x47, 0x34, 0x22, 0x20 }; struct pci_dev *pdev = to_pci_dev(ap->host->dev); int dn = 2 * ap->port_no + adev->devno; |
669a5db41 [libata] Add a bu... |
101 |
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1); |
1fd4bbec8 pata_atiixp: fix ... |
102 103 |
u32 pio_timing_data; u16 pio_mode_data; |
669a5db41 [libata] Add a bu... |
104 105 106 107 108 |
pci_read_config_word(pdev, ATIIXP_IDE_PIO_MODE, &pio_mode_data); pio_mode_data &= ~(0x7 << (4 * dn)); pio_mode_data |= pio << (4 * dn); pci_write_config_word(pdev, ATIIXP_IDE_PIO_MODE, pio_mode_data); |
1fd4bbec8 pata_atiixp: fix ... |
109 |
pci_read_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data); |
d7b5a23fc [libata] pata_ati... |
110 111 |
pio_timing_data &= ~(0xFF << timing_shift); pio_timing_data |= (pio_timings[pio] << timing_shift); |
1fd4bbec8 pata_atiixp: fix ... |
112 |
pci_write_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data); |
669a5db41 [libata] Add a bu... |
113 114 115 116 117 118 119 120 121 122 123 124 125 |
} /** * atiixp_set_piomode - set initial PIO mode data * @ap: ATA interface * @adev: ATA device * * Called to do the PIO mode setup. We use a shared helper for this * as the DMA setup must also adjust the PIO timing information. */ static void atiixp_set_piomode(struct ata_port *ap, struct ata_device *adev) { |
e99846f18 [libata] pata_ati... |
126 127 |
unsigned long flags; spin_lock_irqsave(&atiixp_lock, flags); |
669a5db41 [libata] Add a bu... |
128 |
atiixp_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0); |
e99846f18 [libata] pata_ati... |
129 |
spin_unlock_irqrestore(&atiixp_lock, flags); |
669a5db41 [libata] Add a bu... |
130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 |
} /** * atiixp_set_dmamode - set initial DMA mode data * @ap: ATA interface * @adev: ATA device * * Called to do the DMA mode setup. We use timing tables for most * modes but must tune an appropriate PIO mode to match. */ static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev) { static u8 mwdma_timings[5] = { 0x77, 0x21, 0x20 }; struct pci_dev *pdev = to_pci_dev(ap->host->dev); int dma = adev->dma_mode; int dn = 2 * ap->port_no + adev->devno; int wanted_pio; |
e99846f18 [libata] pata_ati... |
149 150 151 |
unsigned long flags; spin_lock_irqsave(&atiixp_lock, flags); |
669a5db41 [libata] Add a bu... |
152 153 154 155 156 157 158 159 160 161 162 |
if (adev->dma_mode >= XFER_UDMA_0) { u16 udma_mode_data; dma -= XFER_UDMA_0; pci_read_config_word(pdev, ATIIXP_IDE_UDMA_MODE, &udma_mode_data); udma_mode_data &= ~(0x7 << (4 * dn)); udma_mode_data |= dma << (4 * dn); pci_write_config_word(pdev, ATIIXP_IDE_UDMA_MODE, udma_mode_data); } else { |
669a5db41 [libata] Add a bu... |
163 |
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1); |
1fd4bbec8 pata_atiixp: fix ... |
164 |
u32 mwdma_timing_data; |
669a5db41 [libata] Add a bu... |
165 166 |
dma -= XFER_MW_DMA_0; |
1fd4bbec8 pata_atiixp: fix ... |
167 168 |
pci_read_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING, &mwdma_timing_data); |
669a5db41 [libata] Add a bu... |
169 170 |
mwdma_timing_data &= ~(0xFF << timing_shift); mwdma_timing_data |= (mwdma_timings[dma] << timing_shift); |
1fd4bbec8 pata_atiixp: fix ... |
171 172 |
pci_write_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING, mwdma_timing_data); |
669a5db41 [libata] Add a bu... |
173 174 175 176 177 |
} /* * We must now look at the PIO mode situation. We may need to * adjust the PIO mode to keep the timings acceptable */ |
273b542e7 pata_atiixp: fix ... |
178 179 |
if (adev->dma_mode >= XFER_MW_DMA_2) wanted_pio = 4; |
669a5db41 [libata] Add a bu... |
180 181 182 183 184 185 186 187 |
else if (adev->dma_mode == XFER_MW_DMA_1) wanted_pio = 3; else if (adev->dma_mode == XFER_MW_DMA_0) wanted_pio = 0; else BUG(); if (adev->pio_mode != wanted_pio) atiixp_set_pio_timing(ap, adev, wanted_pio); |
e99846f18 [libata] pata_ati... |
188 |
spin_unlock_irqrestore(&atiixp_lock, flags); |
669a5db41 [libata] Add a bu... |
189 190 191 192 193 194 195 196 |
} /** * atiixp_bmdma_start - DMA start callback * @qc: Command in progress * * When DMA begins we need to ensure that the UDMA control * register for the channel is correctly set. |
21d2c925d pata_atiixp: Audi... |
197 198 199 |
* * Note: The host lock held by the libata layer protects * us from two channels both trying to set DMA bits at once |
669a5db41 [libata] Add a bu... |
200 201 202 203 204 205 206 207 208 209 210 211 |
*/ static void atiixp_bmdma_start(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct ata_device *adev = qc->dev; struct pci_dev *pdev = to_pci_dev(ap->host->dev); int dn = (2 * ap->port_no) + adev->devno; u16 tmp16; pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16); |
b15b3ebae libata: Fix a lar... |
212 |
if (ata_using_udma(adev)) |
669a5db41 [libata] Add a bu... |
213 214 215 216 217 218 219 220 221 222 223 224 225 |
tmp16 |= (1 << dn); else tmp16 &= ~(1 << dn); pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16); ata_bmdma_start(qc); } /** * atiixp_dma_stop - DMA stop callback * @qc: Command in progress * * DMA has completed. Clear the UDMA flag as the next operations will * be PIO ones not UDMA data transfer. |
21d2c925d pata_atiixp: Audi... |
226 227 228 |
* * Note: The host lock held by the libata layer protects * us from two channels both trying to set DMA bits at once |
669a5db41 [libata] Add a bu... |
229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 |
*/ static void atiixp_bmdma_stop(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); int dn = (2 * ap->port_no) + qc->dev->devno; u16 tmp16; pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16); tmp16 &= ~(1 << dn); pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16); ata_bmdma_stop(qc); } static struct scsi_host_template atiixp_sht = { |
68d1d07b5 libata: implement... |
245 |
ATA_BMDMA_SHT(DRV_NAME), |
635adc280 pata_atiixp: Use ... |
246 |
.sg_tablesize = LIBATA_DUMB_MAX_PRD, |
669a5db41 [libata] Add a bu... |
247 248 249 |
}; static struct ata_port_operations atiixp_port_ops = { |
029cfd6b7 libata: implement... |
250 |
.inherits = &ata_bmdma_port_ops, |
669a5db41 [libata] Add a bu... |
251 |
|
f47451c45 libata-sff: ata_s... |
252 |
.qc_prep = ata_bmdma_dumb_qc_prep, |
669a5db41 [libata] Add a bu... |
253 254 |
.bmdma_start = atiixp_bmdma_start, .bmdma_stop = atiixp_bmdma_stop, |
bda302881 [libata] Don't us... |
255 |
|
46b9e7707 pata_atiixp: add ... |
256 |
.prereset = atiixp_prereset, |
029cfd6b7 libata: implement... |
257 258 259 |
.cable_detect = atiixp_cable_detect, .set_piomode = atiixp_set_piomode, .set_dmamode = atiixp_set_dmamode, |
669a5db41 [libata] Add a bu... |
260 |
}; |
16028232b pata_atiixp: upda... |
261 |
static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id) |
669a5db41 [libata] Add a bu... |
262 |
{ |
1626aeb88 libata: clean up ... |
263 |
static const struct ata_port_info info = { |
1d2808fd3 [libata] PATA dri... |
264 |
.flags = ATA_FLAG_SLAVE_POSS, |
14bdef982 [libata] convert ... |
265 266 267 |
.pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA12_ONLY, .udma_mask = ATA_UDMA5, |
669a5db41 [libata] Add a bu... |
268 269 |
.port_ops = &atiixp_port_ops }; |
16028232b pata_atiixp: upda... |
270 |
const struct ata_port_info *ppi[] = { &info, &info }; |
16028232b pata_atiixp: upda... |
271 |
|
1c5afdf7a libata-sff: separ... |
272 273 |
return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL, ATA_HOST_PARALLEL_SCAN); |
669a5db41 [libata] Add a bu... |
274 |
} |
2d2744fc8 [libata] PCI ID t... |
275 276 277 278 279 |
static const struct pci_device_id atiixp[] = { { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), }, { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), }, { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), }, { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), }, |
1ca972c20 [libata] pata_ati... |
280 |
{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), }, |
5deab5366 ahci / atiixp / p... |
281 |
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_HUDSON2_IDE), }, |
2d2744fc8 [libata] PCI ID t... |
282 283 |
{ }, |
669a5db41 [libata] Add a bu... |
284 285 286 287 288 289 |
}; static struct pci_driver atiixp_pci_driver = { .name = DRV_NAME, .id_table = atiixp, .probe = atiixp_init_one, |
30ced0f0d [PATCH] PATA liba... |
290 |
.remove = ata_pci_remove_one, |
58eb8cd56 ata: use CONFIG_P... |
291 |
#ifdef CONFIG_PM_SLEEP |
30ced0f0d [PATCH] PATA liba... |
292 293 |
.resume = ata_pci_device_resume, .suspend = ata_pci_device_suspend, |
438ac6d5e libata: add missi... |
294 |
#endif |
669a5db41 [libata] Add a bu... |
295 |
}; |
2fc75da0c ata: use module_p... |
296 |
module_pci_driver(atiixp_pci_driver); |
669a5db41 [libata] Add a bu... |
297 |
|
669a5db41 [libata] Add a bu... |
298 299 300 301 302 |
MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("low-level driver for ATI IXP200/300/400"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, atiixp); MODULE_VERSION(DRV_VERSION); |