diff options
Diffstat (limited to 'drivers/ide/pci/alim15x3.c')
| -rw-r--r-- | drivers/ide/pci/alim15x3.c | 89 |
1 files changed, 35 insertions, 54 deletions
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index 11ecb618007..0b83443bf25 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/alim15x3.c Version 0.25 Jun 9 2007 + * linux/drivers/ide/pci/alim15x3.c Version 0.26 Jul 14 2007 * * Copyright (C) 1998-2000 Michel Aubry, Maintainer * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer @@ -283,17 +283,14 @@ static int ali_get_info (char *buffer, char **addr, off_t offset, int count) #endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */ /** - * ali15x3_tune_pio - set up chipset for PIO mode - * @drive: drive to tune - * @pio: desired mode + * ali_set_pio_mode - set host controller for PIO mode + * @drive: drive + * @pio: PIO mode number * - * Select the best PIO mode for the drive in question. - * Then program the controller for this mode. - * - * Returns the PIO mode programmed. + * Program the controller for the given PIO mode. */ - -static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio) + +static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; @@ -306,7 +303,6 @@ static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio) u8 cd_dma_fifo = 0; int unit = drive->select.b.unit & 1; - pio = ide_get_best_pio_mode(drive, pio, 5); s_time = ide_pio_timings[pio].setup_time; a_time = ide_pio_timings[pio].active_time; if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8) @@ -359,23 +355,6 @@ static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio) * { 25, 70, 25 }, PIO Mode 4 with IORDY ns * { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard) */ - - return pio; -} - -/** - * ali15x3_tune_drive - set up drive for PIO mode - * @drive: drive to tune - * @pio: desired mode - * - * Program the controller with the best PIO timing for the given drive. - * Then set up the drive itself. - */ - -static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio) -{ - pio = ali15x3_tune_pio(drive, pio); - (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio); } /** @@ -407,24 +386,25 @@ static u8 ali_udma_filter(ide_drive_t *drive) } /** - * ali15x3_tune_chipset - set up chipset/drive for new speed - * @drive: drive to configure for - * @xferspeed: desired speed + * ali_set_dma_mode - set host controller for DMA mode + * @drive: drive + * @speed: DMA mode * * Configure the hardware for the desired IDE transfer mode. - * We also do the needed drive configuration through helpers */ - -static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed) + +static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; - u8 speed = ide_rate_filter(drive, xferspeed); u8 speed1 = speed; u8 unit = (drive->select.b.unit & 0x01); u8 tmpbyte = 0x00; int m5229_udma = (hwif->channel) ? 0x57 : 0x56; + if (speed < XFER_PIO_0) + return; + if (speed == XFER_UDMA_6) speed1 = 0x47; @@ -437,8 +417,9 @@ static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed) tmpbyte &= ultra_enable; pci_write_config_byte(dev, m5229_udma, tmpbyte); - if (speed < XFER_SW_DMA_0) - (void) ali15x3_tune_pio(drive, speed - XFER_PIO_0); + /* + * FIXME: Oh, my... DMA timings are never set. + */ } else { pci_read_config_byte(dev, m5229_udma, &tmpbyte); tmpbyte &= (0x0f << ((1-unit) << 2)); @@ -453,7 +434,6 @@ static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed) pci_write_config_byte(dev, 0x4b, tmpbyte); } } - return (ide_config_drive_speed(drive, speed)); } /** @@ -471,7 +451,7 @@ static int ali15x3_config_drive_for_dma(ide_drive_t *drive) if (ide_tune_dma(drive)) return 0; - ali15x3_tune_drive(drive, 255); + ide_set_max_pio(drive); return -1; } @@ -588,7 +568,7 @@ out: * Cable special cases */ -static struct dmi_system_id cable_dmi_table[] = { +static const struct dmi_system_id cable_dmi_table[] = { { .ident = "HP Pavilion N5430", .matches = { @@ -701,8 +681,8 @@ static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif) static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif) { hwif->autodma = 0; - hwif->tuneproc = &ali15x3_tune_drive; - hwif->speedproc = &ali15x3_tune_chipset; + hwif->set_pio_mode = &ali_set_pio_mode; + hwif->set_dma_mode = &ali_set_dma_mode; hwif->udma_filter = &ali_udma_filter; /* don't use LBA48 DMA on ALi devices before rev 0xC5 */ @@ -714,6 +694,10 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif) return; } + /* + * check in ->init_dma guarantees m5229_revision >= 0x20 here + */ + if (m5229_revision > 0x20) hwif->atapi_dma = 1; @@ -731,18 +715,15 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif) hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; - if (m5229_revision >= 0x20) { - /* - * M1543C or newer for DMAing - */ - hwif->ide_dma_check = &ali15x3_config_drive_for_dma; - hwif->dma_setup = &ali15x3_dma_setup; - if (!noautodma) - hwif->autodma = 1; - - if (hwif->cbl != ATA_CBL_PATA40_SHORT) - hwif->cbl = ata66_ali15x3(hwif); - } + hwif->ide_dma_check = &ali15x3_config_drive_for_dma; + hwif->dma_setup = &ali15x3_dma_setup; + + if (hwif->cbl != ATA_CBL_PATA40_SHORT) + hwif->cbl = ata66_ali15x3(hwif); + + if (!noautodma) + hwif->autodma = 1; + hwif->drives[0].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma; } |