Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com> |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 3 | * Copyright (C) 2007 Bartlomiej Zolnierkiewicz |
| 4 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * May be copied or modified under the terms of the GNU General Public License |
| 6 | * |
| 7 | * Development of this chipset driver was funded |
| 8 | * by the nice folks at National Semiconductor. |
| 9 | * |
| 10 | * Documentation: |
| 11 | * Available from National Semiconductor |
| 12 | */ |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/module.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/kernel.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/pci.h> |
| 19 | #include <linux/init.h> |
| 20 | #include <linux/ide.h> |
| 21 | #include <linux/pm.h> |
Bartlomiej Zolnierkiewicz | 78829dd | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 25 | #define DRV_NAME "sc1200" |
| 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #define SC1200_REV_A 0x00 |
| 28 | #define SC1200_REV_B1 0x01 |
| 29 | #define SC1200_REV_B3 0x02 |
| 30 | #define SC1200_REV_C1 0x03 |
| 31 | #define SC1200_REV_D1 0x04 |
| 32 | |
| 33 | #define PCI_CLK_33 0x00 |
| 34 | #define PCI_CLK_48 0x01 |
| 35 | #define PCI_CLK_66 0x02 |
| 36 | #define PCI_CLK_33A 0x03 |
| 37 | |
| 38 | static unsigned short sc1200_get_pci_clock (void) |
| 39 | { |
| 40 | unsigned char chip_id, silicon_revision; |
| 41 | unsigned int pci_clock; |
| 42 | /* |
| 43 | * Check the silicon revision, as not all versions of the chip |
| 44 | * have the register with the fast PCI bus timings. |
| 45 | */ |
| 46 | chip_id = inb (0x903c); |
| 47 | silicon_revision = inb (0x903d); |
| 48 | |
| 49 | // Read the fast pci clock frequency |
| 50 | if (chip_id == 0x04 && silicon_revision < SC1200_REV_B1) { |
| 51 | pci_clock = PCI_CLK_33; |
| 52 | } else { |
| 53 | // check clock generator configuration (cfcc) |
| 54 | // the clock is in bits 8 and 9 of this word |
| 55 | |
| 56 | pci_clock = inw (0x901e); |
| 57 | pci_clock >>= 8; |
| 58 | pci_clock &= 0x03; |
| 59 | if (pci_clock == PCI_CLK_33A) |
| 60 | pci_clock = PCI_CLK_33; |
| 61 | } |
| 62 | return pci_clock; |
| 63 | } |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | /* |
| 66 | * Here are the standard PIO mode 0-4 timings for each "format". |
| 67 | * Format-0 uses fast data reg timings, with slower command reg timings. |
| 68 | * Format-1 uses fast timings for all registers, but won't work with all drives. |
| 69 | */ |
| 70 | static const unsigned int sc1200_pio_timings[4][5] = |
| 71 | {{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, // format0 33Mhz |
| 72 | {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}, // format1, 33Mhz |
| 73 | {0xfaa3f4f3, 0xc23232b2, 0x513101c1, 0x31213121, 0x10211021}, // format1, 48Mhz |
| 74 | {0xfff4fff4, 0xf35353d3, 0x814102f1, 0x42314231, 0x11311131}}; // format1, 66Mhz |
| 75 | |
| 76 | /* |
| 77 | * After chip reset, the PIO timings are set to 0x00009172, which is not valid. |
| 78 | */ |
| 79 | //#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172) |
| 80 | |
Bartlomiej Zolnierkiewicz | 3c3f5d2 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 81 | static void sc1200_tunepio(ide_drive_t *drive, u8 pio) |
| 82 | { |
| 83 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 84 | struct pci_dev *pdev = to_pci_dev(hwif->dev); |
Bartlomiej Zolnierkiewicz | 3c3f5d2 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 85 | unsigned int basereg = hwif->channel ? 0x50 : 0x40, format = 0; |
| 86 | |
| 87 | pci_read_config_dword(pdev, basereg + 4, &format); |
| 88 | format = (format >> 31) & 1; |
| 89 | if (format) |
| 90 | format += sc1200_get_pci_clock(); |
| 91 | pci_write_config_dword(pdev, basereg + ((drive->dn & 1) << 3), |
| 92 | sc1200_pio_timings[format][pio]); |
| 93 | } |
| 94 | |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 95 | /* |
| 96 | * The SC1200 specifies that two drives sharing a cable cannot mix |
| 97 | * UDMA/MDMA. It has to be one or the other, for the pair, though |
| 98 | * different timings can still be chosen for each drive. We could |
| 99 | * set the appropriate timing bits on the fly, but that might be |
| 100 | * a bit confusing. So, for now we statically handle this requirement |
| 101 | * by looking at our mate drive to see what it is capable of, before |
| 102 | * choosing a mode for our own drive. |
| 103 | */ |
| 104 | static u8 sc1200_udma_filter(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | { |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 106 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 107 | ide_drive_t *mate = ide_get_pair_dev(drive); |
Julia Lawall | 9ecab6e | 2008-12-22 23:05:06 +0100 | [diff] [blame] | 108 | u16 *mateid; |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 109 | u8 mask = hwif->ultra_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 111 | if (mate == NULL) |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 112 | goto out; |
Julia Lawall | 9ecab6e | 2008-12-22 23:05:06 +0100 | [diff] [blame] | 113 | mateid = mate->id; |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 114 | |
Bartlomiej Zolnierkiewicz | 48fb268 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 115 | if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 116 | if ((mateid[ATA_ID_FIELD_VALID] & 4) && |
| 117 | (mateid[ATA_ID_UDMA_MODES] & 7)) |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 118 | goto out; |
Sergei Shtylyov | 8d64fcd | 2009-03-31 20:15:27 +0200 | [diff] [blame] | 119 | if (mateid[ATA_ID_MWDMA_MODES] & 7) |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 120 | mask = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 122 | out: |
| 123 | return mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
| 125 | |
Bartlomiej Zolnierkiewicz | 8776168 | 2010-01-19 01:45:29 -0800 | [diff] [blame] | 126 | static void sc1200_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 128 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | unsigned int reg, timings; |
| 130 | unsigned short pci_clock; |
| 131 | unsigned int basereg = hwif->channel ? 0x50 : 0x40; |
Bartlomiej Zolnierkiewicz | 8776168 | 2010-01-19 01:45:29 -0800 | [diff] [blame] | 132 | const u8 mode = drive->dma_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
Bartlomiej Zolnierkiewicz | 4eed504 | 2008-01-25 22:17:18 +0100 | [diff] [blame] | 134 | static const u32 udma_timing[3][3] = { |
| 135 | { 0x00921250, 0x00911140, 0x00911030 }, |
| 136 | { 0x00932470, 0x00922260, 0x00922140 }, |
| 137 | { 0x009436a1, 0x00933481, 0x00923261 }, |
| 138 | }; |
| 139 | |
| 140 | static const u32 mwdma_timing[3][3] = { |
| 141 | { 0x00077771, 0x00012121, 0x00002020 }, |
| 142 | { 0x000bbbb2, 0x00024241, 0x00013131 }, |
| 143 | { 0x000ffff3, 0x00035352, 0x00015151 }, |
| 144 | }; |
| 145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | pci_clock = sc1200_get_pci_clock(); |
| 147 | |
| 148 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | * Note that each DMA mode has several timings associated with it. |
| 150 | * The correct timing depends on the fast PCI clock freq. |
| 151 | */ |
Bartlomiej Zolnierkiewicz | 4eed504 | 2008-01-25 22:17:18 +0100 | [diff] [blame] | 152 | |
| 153 | if (mode >= XFER_UDMA_0) |
| 154 | timings = udma_timing[pci_clock][mode - XFER_UDMA_0]; |
| 155 | else |
| 156 | timings = mwdma_timing[pci_clock][mode - XFER_MW_DMA_0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
Bartlomiej Zolnierkiewicz | 123995b | 2008-10-13 21:39:40 +0200 | [diff] [blame] | 158 | if ((drive->dn & 1) == 0) { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 159 | pci_read_config_dword(dev, basereg + 4, ®); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | timings |= reg & 0x80000000; /* preserve PIO format bit */ |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 161 | pci_write_config_dword(dev, basereg + 4, timings); |
| 162 | } else |
| 163 | pci_write_config_dword(dev, basereg + 12, timings); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | } |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | /* Replacement for the standard ide_dma_end action in |
| 167 | * dma_proc. |
| 168 | * |
| 169 | * returns 1 on error, 0 otherwise |
| 170 | */ |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 171 | static int sc1200_dma_end(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 173 | ide_hwif_t *hwif = drive->hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | unsigned long dma_base = hwif->dma_base; |
Bartlomiej Zolnierkiewicz | 9892ec5 | 2009-01-06 17:20:53 +0100 | [diff] [blame] | 175 | u8 dma_stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
| 177 | dma_stat = inb(dma_base+2); /* get DMA status */ |
| 178 | |
| 179 | if (!(dma_stat & 4)) |
| 180 | printk(" ide_dma_end dma_stat=%0x err=%x newerr=%x\n", |
| 181 | dma_stat, ((dma_stat&7)!=4), ((dma_stat&2)==2)); |
| 182 | |
| 183 | outb(dma_stat|0x1b, dma_base+2); /* clear the INTR & ERROR bits */ |
| 184 | outb(inb(dma_base)&~1, dma_base); /* !! DO THIS HERE !! stop DMA */ |
| 185 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | return (dma_stat & 7) != 4; /* verify good DMA status */ |
| 187 | } |
| 188 | |
| 189 | /* |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 190 | * sc1200_set_pio_mode() handles setting of PIO modes |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | * for both the chipset and drive. |
| 192 | * |
| 193 | * All existing BIOSs for this chipset guarantee that all drives |
| 194 | * will have valid default PIO timings set up before we get here. |
| 195 | */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 196 | |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 197 | static void sc1200_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | int mode = -1; |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 200 | const u8 pio = drive->pio_mode - XFER_PIO_0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 202 | /* |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 203 | * bad abuse of ->set_pio_mode interface |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 204 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | switch (pio) { |
| 206 | case 200: mode = XFER_UDMA_0; break; |
| 207 | case 201: mode = XFER_UDMA_1; break; |
| 208 | case 202: mode = XFER_UDMA_2; break; |
| 209 | case 100: mode = XFER_MW_DMA_0; break; |
| 210 | case 101: mode = XFER_MW_DMA_1; break; |
| 211 | case 102: mode = XFER_MW_DMA_2; break; |
| 212 | } |
| 213 | if (mode != -1) { |
| 214 | printk("SC1200: %s: changing (U)DMA mode\n", drive->name); |
Bartlomiej Zolnierkiewicz | 4a546e0 | 2008-01-26 20:13:01 +0100 | [diff] [blame] | 215 | ide_dma_off_quietly(drive); |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 216 | if (ide_set_dma_mode(drive, mode) == 0 && |
| 217 | (drive->dev_flags & IDE_DFLAG_USING_DMA)) |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 218 | hwif->dma_ops->dma_host_set(drive, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | return; |
| 220 | } |
| 221 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 222 | sc1200_tunepio(drive, pio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | } |
| 224 | |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 225 | #ifdef CONFIG_PM |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 226 | struct sc1200_saved_state { |
| 227 | u32 regs[8]; |
| 228 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
Pavel Machek | 3bfffd9 | 2005-04-16 15:25:37 -0700 | [diff] [blame] | 230 | static int sc1200_suspend (struct pci_dev *dev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | { |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 232 | printk("SC1200: suspend(%u)\n", state.event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 234 | /* |
| 235 | * we only save state when going from full power to less |
| 236 | */ |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 237 | if (state.event == PM_EVENT_ON) { |
Bartlomiej Zolnierkiewicz | 96776f3 | 2008-07-24 22:53:16 +0200 | [diff] [blame] | 238 | struct ide_host *host = pci_get_drvdata(dev); |
| 239 | struct sc1200_saved_state *ss = host->host_priv; |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 240 | unsigned int r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 242 | /* |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 243 | * save timing registers |
| 244 | * (this may be unnecessary if BIOS also does it) |
| 245 | */ |
| 246 | for (r = 0; r < 8; r++) |
| 247 | pci_read_config_dword(dev, 0x40 + r * 4, &ss->regs[r]); |
| 248 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
| 250 | pci_disable_device(dev); |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 251 | pci_set_power_state(dev, pci_choose_state(dev, state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | return 0; |
| 253 | } |
| 254 | |
| 255 | static int sc1200_resume (struct pci_dev *dev) |
| 256 | { |
Bartlomiej Zolnierkiewicz | 96776f3 | 2008-07-24 22:53:16 +0200 | [diff] [blame] | 257 | struct ide_host *host = pci_get_drvdata(dev); |
| 258 | struct sc1200_saved_state *ss = host->host_priv; |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 259 | unsigned int r; |
| 260 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
Jeff Garzik | 9d43481 | 2007-10-26 20:31:15 +0200 | [diff] [blame] | 262 | i = pci_enable_device(dev); |
| 263 | if (i) |
| 264 | return i; |
| 265 | |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 266 | /* |
| 267 | * restore timing registers |
| 268 | * (this may be unnecessary if BIOS also does it) |
| 269 | */ |
Bartlomiej Zolnierkiewicz | 96776f3 | 2008-07-24 22:53:16 +0200 | [diff] [blame] | 270 | for (r = 0; r < 8; r++) |
| 271 | pci_write_config_dword(dev, 0x40 + r * 4, ss->regs[r]); |
Bartlomiej Zolnierkiewicz | 7c0e266 | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 272 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | return 0; |
| 274 | } |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 275 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 277 | static const struct ide_port_ops sc1200_port_ops = { |
| 278 | .set_pio_mode = sc1200_set_pio_mode, |
| 279 | .set_dma_mode = sc1200_set_dma_mode, |
| 280 | .udma_filter = sc1200_udma_filter, |
| 281 | }; |
| 282 | |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 283 | static const struct ide_dma_ops sc1200_dma_ops = { |
| 284 | .dma_host_set = ide_dma_host_set, |
| 285 | .dma_setup = ide_dma_setup, |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 286 | .dma_start = ide_dma_start, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 287 | .dma_end = sc1200_dma_end, |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 288 | .dma_test_irq = ide_dma_test_irq, |
| 289 | .dma_lost_irq = ide_dma_lost_irq, |
Bartlomiej Zolnierkiewicz | 22117d6 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 290 | .dma_timer_expiry = ide_dma_sff_timer_expiry, |
Sergei Shtylyov | 592b531 | 2009-01-06 17:21:02 +0100 | [diff] [blame] | 291 | .dma_sff_read_status = ide_dma_sff_read_status, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 292 | }; |
| 293 | |
Greg Kroah-Hartman | fe31edc | 2012-12-21 13:21:03 -0800 | [diff] [blame^] | 294 | static const struct ide_port_info sc1200_chipset = { |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 295 | .name = DRV_NAME, |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 296 | .port_ops = &sc1200_port_ops, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 297 | .dma_ops = &sc1200_dma_ops, |
Bartlomiej Zolnierkiewicz | 1c51361 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 298 | .host_flags = IDE_HFLAG_SERIALIZE | |
| 299 | IDE_HFLAG_POST_SET_MODE | |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 300 | IDE_HFLAG_ABUSE_DMA_MODES, |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 301 | .pio_mask = ATA_PIO4, |
Bartlomiej Zolnierkiewicz | 5f8b6c3 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 302 | .mwdma_mask = ATA_MWDMA2, |
| 303 | .udma_mask = ATA_UDMA2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | }; |
| 305 | |
Greg Kroah-Hartman | fe31edc | 2012-12-21 13:21:03 -0800 | [diff] [blame^] | 306 | static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
Bartlomiej Zolnierkiewicz | 96776f3 | 2008-07-24 22:53:16 +0200 | [diff] [blame] | 308 | struct sc1200_saved_state *ss = NULL; |
| 309 | int rc; |
| 310 | |
| 311 | #ifdef CONFIG_PM |
| 312 | ss = kmalloc(sizeof(*ss), GFP_KERNEL); |
| 313 | if (ss == NULL) |
| 314 | return -ENOMEM; |
| 315 | #endif |
| 316 | rc = ide_pci_init_one(dev, &sc1200_chipset, ss); |
| 317 | if (rc) |
| 318 | kfree(ss); |
| 319 | |
| 320 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | } |
| 322 | |
Bartlomiej Zolnierkiewicz | 9cbcc5e | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 323 | static const struct pci_device_id sc1200_pci_tbl[] = { |
| 324 | { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SCx200_IDE), 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { 0, }, |
| 326 | }; |
| 327 | MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl); |
| 328 | |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 329 | static struct pci_driver sc1200_pci_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | .name = "SC1200_IDE", |
| 331 | .id_table = sc1200_pci_tbl, |
| 332 | .probe = sc1200_init_one, |
Bartlomiej Zolnierkiewicz | 991f5e6 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 333 | .remove = ide_pci_remove, |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 334 | #ifdef CONFIG_PM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | .suspend = sc1200_suspend, |
| 336 | .resume = sc1200_resume, |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 337 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | }; |
| 339 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 340 | static int __init sc1200_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 342 | return ide_pci_register_driver(&sc1200_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | } |
| 344 | |
Bartlomiej Zolnierkiewicz | 991f5e6 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 345 | static void __exit sc1200_ide_exit(void) |
| 346 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 347 | pci_unregister_driver(&sc1200_pci_driver); |
Bartlomiej Zolnierkiewicz | 991f5e6 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 348 | } |
| 349 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | module_init(sc1200_ide_init); |
Bartlomiej Zolnierkiewicz | 991f5e6 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 351 | module_exit(sc1200_ide_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
| 353 | MODULE_AUTHOR("Mark Lord"); |
| 354 | MODULE_DESCRIPTION("PCI driver module for NS SC1200 IDE"); |
| 355 | MODULE_LICENSE("GPL"); |