Commit 08446d85 authored by Martin Dalecki's avatar Martin Dalecki Committed by Linus Torvalds

[PATCH] 2.5.19 IDE 81

 - Don't use ata_taskfiles cmd field for drive status reporting,
   we can now simply use drive->status instead.

 - Unify command type parser entries which could be unified due to the
   unification of corresponding interrupt handlers.

 - Eliminate reading parameter from ata_do_udma(). We have this information
   already in the rq. This allows us to merge several methods.

 - Rename XXX_udma to udma_setup, since we have finally settled up on this
   semantics.

 - Simplify tons of host chip code by removing wrapper functions.
parent 76d04538
......@@ -150,7 +150,7 @@ static void aec62xx_tune_drive(struct ata_device *drive, unsigned char pio)
}
#ifdef CONFIG_BLK_DEV_IDEDMA
static int aec62xx_dmaproc(struct ata_device *drive)
static int aec62xx_udma_setup(struct ata_device *drive)
{
u32 bmide = pci_resource_start(drive->channel->pci_dev, 4);
short speed;
......@@ -244,8 +244,8 @@ static void __init aec62xx_init_channel(struct ata_channel *ch)
{
int i;
ch->tuneproc = &aec62xx_tune_drive;
ch->speedproc = &aec_set_drive;
ch->tuneproc = aec62xx_tune_drive;
ch->speedproc = aec_set_drive;
ch->autodma = 0;
ch->io_32bit = 1;
......@@ -259,7 +259,7 @@ static void __init aec62xx_init_channel(struct ata_channel *ch)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (ch->dma_base) {
ch->highmem = 1;
ch->XXX_udma = aec62xx_dmaproc;
ch->udma_setup = aec62xx_udma_setup;
#ifdef CONFIG_IDEDMA_AUTO
if (!noautodma)
ch->autodma = 1;
......
......@@ -199,7 +199,7 @@ static int config_chipset_for_dma(struct ata_device *drive, u8 udma)
return !ali15x3_tune_chipset(drive, mode);
}
static int ali15x3_config_drive_for_dma(struct ata_device *drive)
static int ali15x3_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
struct ata_channel *hwif = drive->channel;
......@@ -261,17 +261,12 @@ static int ali15x3_config_drive_for_dma(struct ata_device *drive)
return 0;
}
static int ali15x3_udma_write(struct ata_device *drive, struct request *rq)
static int ali15x3_udma_init(struct ata_device *drive, struct request *rq)
{
if ((m5229_revision < 0xC2) && (drive->type != ATA_DISK))
return 1; /* try PIO instead of DMA */
return ata_do_udma(0, drive, rq);
}
static int ali15x3_dmaproc(struct ata_device *drive)
{
return ali15x3_config_drive_for_dma(drive);
return udma_pci_init(drive, rq);
}
#endif
......@@ -447,8 +442,8 @@ static void __init ali15x3_init_channel(struct ata_channel *hwif)
/*
* M1543C or newer for DMAing
*/
hwif->udma_write = ali15x3_udma_write;
hwif->XXX_udma = ali15x3_dmaproc;
hwif->udma_init = ali15x3_udma_init;
hwif->udma_setup = ali15x3_udma_setup;
hwif->autodma = 1;
}
......
......@@ -177,7 +177,7 @@ static void amd74xx_tune_drive(struct ata_device *drive, u8 pio)
}
#ifdef CONFIG_BLK_DEV_IDEDMA
int amd74xx_dmaproc(struct ata_device *drive)
static int amd74xx_udma_setup(struct ata_device *drive)
{
short w80 = drive->channel->udma_four;
......@@ -291,7 +291,7 @@ static void __init amd74xx_init_channel(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->highmem = 1;
hwif->XXX_udma = amd74xx_dmaproc;
hwif->udma_setup = amd74xx_udma_setup;
# ifdef CONFIG_IDEDMA_AUTO
if (!noautodma)
hwif->autodma = 1;
......
......@@ -627,7 +627,7 @@ static int cmd64x_config_drive_for_dma(struct ata_device *drive)
return 0;
}
static int cmd680_dmaproc(struct ata_device *drive)
static int cmd680_udma_setup(struct ata_device *drive)
{
return cmd64x_config_drive_for_dma(drive);
}
......@@ -680,7 +680,7 @@ static int cmd64x_udma_irq_status(struct ata_device *drive)
return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
}
static int cmd64x_dmaproc(struct ata_device *drive)
static int cmd64x_udma_setup(struct ata_device *drive)
{
return cmd64x_config_drive_for_dma(drive);
}
......@@ -703,7 +703,7 @@ static int cmd646_1_udma_stop(struct ata_device *drive)
* ASUS P55T2P4D with CMD646 chipset revision 0x01 requires the old
* event order for DMA transfers.
*/
static int cmd646_1_dmaproc(struct ata_device *drive)
static int cmd646_1_udma_setup(struct ata_device *drive)
{
return cmd64x_config_drive_for_dma(drive);
}
......@@ -903,7 +903,7 @@ static void __init cmd64x_init_channel(struct ata_channel *hwif)
hwif->busproc = cmd680_busproc;
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base)
hwif->XXX_udma = cmd680_dmaproc;
hwif->udma_setup = cmd680_udma_setup;
#endif
hwif->resetproc = cmd680_reset;
hwif->speedproc = cmd680_tune_chipset;
......@@ -914,7 +914,7 @@ static void __init cmd64x_init_channel(struct ata_channel *hwif)
case PCI_DEVICE_ID_CMD_643:
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->XXX_udma = cmd64x_dmaproc;
hwif->udma_setup = cmd64x_udma_setup;
hwif->udma_stop = cmd64x_udma_stop;
hwif->udma_irq_status = cmd64x_udma_irq_status;
}
......@@ -927,10 +927,10 @@ static void __init cmd64x_init_channel(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
if (class_rev == 0x01) {
hwif->XXX_udma = cmd646_1_dmaproc;
hwif->udma_setup = cmd646_1_udma_setup;
hwif->udma_stop = cmd646_1_udma_stop;
} else {
hwif->XXX_udma = cmd64x_dmaproc;
hwif->udma_setup = cmd64x_udma_setup;
hwif->udma_stop = cmd64x_udma_stop;
hwif->udma_irq_status = cmd64x_udma_irq_status;
}
......
......@@ -191,7 +191,7 @@ static int cs5530_config_dma(struct ata_device *drive)
return 0;
}
int cs5530_dmaproc(struct ata_device *drive)
static int cs5530_udma_setup(struct ata_device *drive)
{
return cs5530_config_dma(drive);
}
......@@ -292,7 +292,7 @@ static void __init ide_init_cs5530(struct ata_channel *hwif)
unsigned int basereg, d0_timings;
#ifdef CONFIG_BLK_DEV_IDEDMA
hwif->XXX_udma = cs5530_dmaproc;
hwif->udma_setup = cs5530_udma_setup;
hwif->highmem = 1;
#else
hwif->autodma = 0;
......
......@@ -236,7 +236,7 @@ static void cy82c693_dma_enable(struct ata_device *drive, int mode, int single)
/*
* used to set DMA mode for CY82C693 (single and multi modes)
*/
static int cy82c693_dmaproc(struct ata_device *drive)
static int cy82c693_udma_setup(struct ata_device *drive)
{
/*
* Set dma mode for drive everything else is done by the defaul func.
......@@ -443,7 +443,7 @@ static void __init ide_init_cy82c693(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->highmem = 1;
hwif->XXX_udma = cy82c693_dmaproc;
hwif->udma_setup = cy82c693_udma_setup;
if (!noautodma)
hwif->autodma = 1;
}
......
......@@ -172,7 +172,7 @@ static int config_chipset_for_dma(struct ata_device *drive, u8 udma)
return !hpt34x_tune_chipset(drive, mode);
}
static int config_drive_xfer_rate(struct ata_device *drive)
static int hpt34x_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
int on = 1;
......@@ -246,18 +246,23 @@ static int hpt34x_udma_stop(struct ata_device *drive)
return (dma_stat & 7) != 4; /* verify good DMA status */
}
static int do_udma(unsigned int reading, struct ata_device *drive, struct request *rq)
static int hpt34x_udma_init(struct ata_device *drive, struct request *rq)
{
struct ata_channel *ch = drive->channel;
unsigned long dma_base = ch->dma_base;
unsigned int count;
u8 cmd;
if (!(count = udma_new_table(ch, rq)))
return 1; /* try PIO instead of DMA */
if (rq_data_dir(rq) == READ)
cmd = 0x09;
else
cmd = 0x01;
outl(ch->dmatable_dma, dma_base + 4); /* PRD table */
reading |= 0x01;
outb(reading, dma_base); /* specify r/w */
outb(cmd, dma_base); /* specify r/w */
outb(inb(dma_base+2)|6, dma_base+2); /* clear INTR & ERROR flags */
drive->waiting_for_dma = 1;
......@@ -265,30 +270,10 @@ static int do_udma(unsigned int reading, struct ata_device *drive, struct reques
return 0;
ide_set_handler(drive, ide_dma_intr, WAIT_CMD, NULL); /* issue cmd to drive */
OUT_BYTE((reading == 9) ? WIN_READDMA : WIN_WRITEDMA, IDE_COMMAND_REG);
OUT_BYTE((cmd == 0x09) ? WIN_READDMA : WIN_WRITEDMA, IDE_COMMAND_REG);
return 0;
}
static int hpt34x_udma_read(struct ata_device *drive, struct request *rq)
{
return do_udma(1 << 3, drive, rq);
}
static int hpt34x_udma_write(struct ata_device *drive, struct request *rq)
{
return do_udma(0, drive, rq);
}
/*
* This is specific to the HPT343 UDMA bios-less chipset
* and HPT345 UDMA bios chipset (stamped HPT363)
* by HighPoint|Triones Technologies, Inc.
*/
static int hpt34x_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
#endif
/*
......@@ -356,9 +341,8 @@ static void __init ide_init_hpt34x(struct ata_channel *hwif)
hwif->autodma = 0;
hwif->udma_stop = hpt34x_udma_stop;
hwif->udma_read = hpt34x_udma_read;
hwif->udma_write = hpt34x_udma_write;
hwif->XXX_udma = hpt34x_dmaproc;
hwif->udma_init = hpt34x_udma_init;
hwif->udma_setup = hpt34x_udma_setup;
hwif->highmem = 1;
} else {
hwif->drives[0].autotune = 1;
......
......@@ -836,7 +836,7 @@ static void hpt3xx_maskproc(struct ata_device *drive)
}
}
static int config_drive_xfer_rate(struct ata_device *drive)
static int hpt3xx_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
int on = 1;
......@@ -903,15 +903,6 @@ static void hpt366_udma_irq_lost(struct ata_device *drive)
pci_write_config_byte(drive->channel->pci_dev, 0x5a, reg5ah & ~0x10);
}
/*
* This is specific to the HPT366 UDMA bios chipset
* by HighPoint|Triones Technologies, Inc.
*/
static int hpt366_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
static void do_udma_start(struct ata_device *drive)
{
struct ata_channel *ch = drive->channel;
......@@ -992,11 +983,6 @@ static int hpt370_udma_stop(struct ata_device *drive)
return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0; /* verify good DMA status */
}
static int hpt370_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
static int hpt374_udma_stop(struct ata_device *drive)
{
struct ata_channel *ch = drive->channel;
......@@ -1019,11 +1005,6 @@ static int hpt374_udma_stop(struct ata_device *drive)
return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0; /* verify good DMA status */
}
static int hpt374_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
#endif
/*
......@@ -1364,27 +1345,27 @@ static void __init hpt366_init_channel(struct ata_channel *ch)
if (hpt_min_rev(dev, 7)) {
ch->udma_stop = hpt374_udma_stop;
ch->XXX_udma = hpt374_dmaproc;
ch->udma_setup = hpt3xx_udma_setup;
} else if (hpt_min_rev(dev, 5)) {
ch->udma_stop = hpt374_udma_stop;
ch->XXX_udma = hpt374_dmaproc;
ch->udma_setup = hpt3xx_udma_setup;
} else if (hpt_min_rev(dev, 3)) {
ch->udma_start = hpt370_udma_start;
ch->udma_stop = hpt370_udma_stop;
ch->udma_timeout = hpt370_udma_timeout;
ch->udma_irq_lost = hpt370_udma_irq_lost;
ch->XXX_udma = hpt370_dmaproc;
ch->udma_setup = hpt3xx_udma_setup;
}
} else if (hpt_min_rev(dev, 2)) {
ch->udma_irq_lost = hpt366_udma_irq_lost;
// ch->resetproc = hpt3xx_reset;
// ch->busproc = hpt3xx_tristate;
ch->XXX_udma = hpt366_dmaproc;
ch->udma_setup = hpt3xx_udma_setup;
} else {
ch->udma_irq_lost = hpt366_udma_irq_lost;
// ch->resetproc = hpt3xx_reset;
// ch->busproc = hpt3xx_tristate;
ch->XXX_udma = hpt366_dmaproc;
ch->udma_setup = hpt3xx_udma_setup;
}
if (!noautodma)
ch->autodma = 1;
......
......@@ -544,7 +544,7 @@ static int icside_dma_read(struct ata_device *drive, struct request *rq)
return 0;
}
static int icside_dma_write(struct ata_device *drive, struct request *rq)
static int icside_dma_init(struct ata_device *drive, struct request *rq)
{
struct ata_channel *ch = drive->channel;
unsigned int cmd;
......@@ -612,12 +612,11 @@ static int icside_setup_dma(struct ata_channel *ch)
ch->dmatable_cpu = NULL;
ch->dmatable_dma = 0;
ch->speedproc = icside_set_speed;
ch->XXX_udma = icside_dma_check;
ch->udma_setup = icside_dma_check;
ch->udma_enable = icside_dma_enable;
ch->udma_start = icside_dma_start;
ch->udma_stop = icside_dma_stop;
ch->udma_read = icside_dma_read;
ch->udma_write = icside_dma_write;
ch->udma_init = icside_dma_init;
ch->udma_irq_status = icside_irq_status;
ch->udma_timeout = icside_dma_timeout;
ch->udma_irq_lost = icside_irq_lost;
......
......@@ -736,10 +736,8 @@ static ide_startstop_t cdrom_start_packet_command(struct ata_device *drive,
return startstop;
if (info->dma) {
if (info->cmd == READ)
info->dma = !udma_read(drive, rq);
else if (info->cmd == WRITE)
info->dma = !udma_write(drive, rq);
if (info->cmd == READ || info->cmd == WRITE)
info->dma = !udma_init(drive, rq);
else
printk("ide-cd: DMA set, but not allowed\n");
}
......
......@@ -517,7 +517,7 @@ static int set_using_tcq(struct ata_device *drive, int arg)
if (!drive->driver)
return -EPERM;
if (!drive->channel->XXX_udma)
if (!drive->channel->udma_setup)
return -EPERM;
if (arg == drive->queue_depth && drive->using_tcq)
......@@ -629,7 +629,7 @@ static unsigned long native_max_address(struct ata_device *drive)
ide_raw_taskfile(drive, &args);
/* if OK, compute maximum address value */
if ((args.cmd & 0x01) == 0) {
if (!(drive->status & ERR_STAT)) {
addr = ((args.taskfile.device_head & 0x0f) << 24)
| (args.taskfile.high_cylinder << 16)
| (args.taskfile.low_cylinder << 8)
......@@ -657,7 +657,7 @@ static u64 native_max_address_ext(struct ata_device *drive)
ide_raw_taskfile(drive, &args);
/* if OK, compute maximum address value */
if ((args.cmd & 0x01) == 0) {
if (!(drive->status & ERR_STAT)) {
u32 high = (args.hobfile.high_cylinder << 16) |
(args.hobfile.low_cylinder << 8) |
args.hobfile.sector_number;
......@@ -696,7 +696,7 @@ static sector_t set_max_address(struct ata_device *drive, sector_t addr_req)
/* submit command request */
ide_raw_taskfile(drive, &args);
/* if OK, read new maximum address value */
if ((args.cmd & 0x01) == 0) {
if (!(drive->status & ERR_STAT)) {
addr_set = ((args.taskfile.device_head & 0x0f) << 24)
| (args.taskfile.high_cylinder << 16)
| (args.taskfile.low_cylinder << 8)
......@@ -731,7 +731,7 @@ static u64 set_max_address_ext(struct ata_device *drive, u64 addr_req)
/* submit command request */
ide_raw_taskfile(drive, &args);
/* if OK, compute maximum address value */
if ((args.cmd & 0x01) == 0) {
if (!(drive->status & ERR_STAT)) {
u32 high = (args.hobfile.high_cylinder << 16) |
(args.hobfile.low_cylinder << 8) |
args.hobfile.sector_number;
......
......@@ -1060,12 +1060,8 @@ static ide_startstop_t idefloppy_issue_pc(struct ata_device *drive, struct reque
if (test_and_clear_bit (PC_DMA_ERROR, &pc->flags))
udma_enable(drive, 0, 1);
if (test_bit (PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma) {
if (test_bit (PC_WRITING, &pc->flags))
dma_ok = !udma_write(drive, rq);
else
dma_ok = !udma_read(drive, rq);
}
if (test_bit (PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
dma_ok = !udma_init(drive, rq);
#endif
ata_irq_enable(drive, 1);
......
......@@ -260,11 +260,9 @@ static void pmac_ide_setup_dma(struct device_node *np, int ix);
static void pmac_udma_enable(struct ata_device *drive, int on, int verbose);
static int pmac_udma_start(struct ata_device *drive, struct request *rq);
static int pmac_udma_stop(struct ata_device *drive);
static int pmac_do_udma(unsigned int reading, struct ata_device *drive, struct request *rq);
static int pmac_udma_read(struct ata_device *drive, struct request *rq);
static int pmac_udma_write(struct ata_device *drive, struct request *rq);
static int pmac_udma_init(struct ata_device *drive, struct request *rq);
static int pmac_udma_irq_status(struct ata_device *drive);
static int pmac_ide_dmaproc(struct ata_device *drive);
static int pmac_udma_setup(struct ata_device *drive);
static int pmac_ide_build_dmatable(struct ata_device *drive, struct request *rq, int ix, int wr);
static int pmac_ide_tune_chipset(struct ata_device *drive, byte speed);
static void pmac_ide_tuneproc(struct ata_device *drive, byte pio);
......@@ -334,10 +332,9 @@ pmac_ide_init_hwif_ports(hw_regs_t *hw,
ide_hwifs[ix].udma_enable = pmac_udma_enable;
ide_hwifs[ix].udma_start = pmac_udma_start;
ide_hwifs[ix].udma_stop = pmac_udma_stop;
ide_hwifs[ix].udma_read = pmac_udma_read;
ide_hwifs[ix].udma_write = pmac_udma_write;
ide_hwifs[ix].udma_init = pmac_udma_init;
ide_hwifs[ix].udma_irq_status = pmac_udma_irq_status;
ide_hwifs[ix].XXX_udma = pmac_ide_dmaproc;
ide_hwifs[ix].udma_setup = pmac_udma_setup;
#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC_AUTO
if (!noautodma)
ide_hwifs[ix].autodma = 1;
......@@ -1043,10 +1040,9 @@ pmac_ide_setup_dma(struct device_node *np, int ix)
ide_hwifs[ix].udma_enable = pmac_udma_enable;
ide_hwifs[ix].udma_start = pmac_udma_start;
ide_hwifs[ix].udma_stop = pmac_udma_stop;
ide_hwifs[ix].udma_read = pmac_udma_read;
ide_hwifs[ix].udma_write = pmac_udma_write;
ide_hwifs[ix].udma_init = pmac_udma_init;
ide_hwifs[ix].udma_irq_status = pmac_udma_irq_status;
ide_hwifs[ix].XXX_udma = pmac_ide_dmaproc;
ide_hwifs[ix].udma_setup = pmac_udma_setup;
#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC_AUTO
if (!noautodma)
ide_hwifs[ix].autodma = 1;
......@@ -1405,11 +1401,12 @@ static int pmac_udma_stop(struct ata_device *drive)
return (dstat & (RUN|DEAD|ACTIVE)) != RUN;
}
static int pmac_do_udma(unsigned int reading, struct ata_device *drive, struct request *rq)
static int pmac_udma_init(struct ata_device *drive, struct request *rq)
{
int ix, ata4;
volatile struct dbdma_regs *dma;
byte unit = (drive->select.b.unit & 0x01);
u8 unit = (drive->select.b.unit & 0x01);
int reading;
/* Can we stuff a pointer to our intf structure in config_data
* or select_data in hwif ?
......@@ -1417,6 +1414,12 @@ static int pmac_do_udma(unsigned int reading, struct ata_device *drive, struct r
ix = pmac_ide_find(drive);
if (ix < 0)
return 0;
if (rq_data_dir(rq) == READ)
reading = 1;
else
reading = 0;
dma = pmac_ide[ix].dma_regs;
ata4 = (pmac_ide[ix].kind == controller_kl_ata4 ||
pmac_ide[ix].kind == controller_kl_ata4_80);
......@@ -1447,16 +1450,6 @@ static int pmac_do_udma(unsigned int reading, struct ata_device *drive, struct r
return udma_start(drive, rq);
}
static int pmac_udma_read(struct ata_device *drive, struct request *rq)
{
return pmac_do_udma(1, drive, rq);
}
static int pmac_udma_write(struct ata_device *drive, struct request *rq)
{
return pmac_do_udma(0, drive, rq);
}
/*
* FIXME: This should be attached to a channel as we can see now!
*/
......@@ -1514,7 +1507,7 @@ static int pmac_udma_irq_status(struct ata_device *drive)
return 0;
}
static int pmac_ide_dmaproc(struct ata_device *drive)
static int pmac_udma_setup(struct ata_device *drive)
{
/* Change this to better match ide-dma.c */
pmac_ide_check_dma(drive);
......
......@@ -2258,12 +2258,8 @@ static ide_startstop_t idetape_issue_packet_command(struct ata_device *drive,
printk (KERN_WARNING "ide-tape: DMA disabled, reverting to PIO\n");
udma_enable(drive, 0, 1);
}
if (test_bit (PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma) {
if (test_bit (PC_WRITING, &pc->flags))
dma_ok = !udma_write(drive, rq);
else
dma_ok = !udma_read(drive, rq);
}
if (test_bit (PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
dma_ok = !udma_init(drive, rq);
#endif
ata_irq_enable(drive, 1);
......
......@@ -350,19 +350,19 @@ ide_startstop_t ata_taskfile(struct ata_device *drive,
return ar->prehandler(drive, rq);
} else {
/*
* FIXME: this is a gross hack, need to unify tcq dma proc and
* regular dma proc.
* FIXME: This is a gross hack, need to unify tcq dma proc and
* regular dma proc. It should now be easier.
*/
if (!drive->using_dma)
return ide_started;
/* for dma commands we don't set the handler */
if (ar->cmd == WIN_WRITEDMA || ar->cmd == WIN_WRITEDMA_EXT)
return !udma_write(drive, rq);
else if (ar->cmd == WIN_READDMA
if (ar->cmd == WIN_WRITEDMA
|| ar->cmd == WIN_WRITEDMA_EXT
|| ar->cmd == WIN_READDMA
|| ar->cmd == WIN_READDMA_EXT)
return !udma_read(drive, rq);
return !udma_init(drive, rq);
#ifdef CONFIG_BLK_DEV_IDE_TCQ
else if (ar->cmd == WIN_WRITEDMA_QUEUED
|| ar->cmd == WIN_WRITEDMA_QUEUED_EXT
......@@ -371,7 +371,7 @@ ide_startstop_t ata_taskfile(struct ata_device *drive,
return udma_tcq_taskfile(drive, rq);
#endif
else {
printk("ata_taskfile: unknown command %x\n", ar->cmd);
printk(KERN_ERR "%s: unknown command %x\n", __FUNCTION__, ar->cmd);
return ide_stopped;
}
}
......@@ -556,31 +556,28 @@ static ide_startstop_t task_mulin_intr(struct ata_device *drive, struct request
* more data left
*/
ide_set_handler(drive, task_mulin_intr, WAIT_CMD, NULL);
return ide_started;
}
/* Called to figure out the type of command being called.
*/
void ide_cmd_type_parser(struct ata_taskfile *args)
void ide_cmd_type_parser(struct ata_taskfile *ar)
{
struct hd_drive_task_hdr *taskfile = &args->taskfile;
struct hd_drive_task_hdr *taskfile = &ar->taskfile;
args->prehandler = NULL;
args->handler = NULL;
ar->prehandler = NULL;
ar->handler = NULL;
switch (args->cmd) {
switch (ar->cmd) {
case WIN_IDENTIFY:
case WIN_PIDENTIFY:
args->handler = task_in_intr;
args->command_type = IDE_DRIVE_TASK_IN;
return;
case CFA_TRANSLATE_SECTOR:
case WIN_READ:
case WIN_READ_EXT:
case WIN_READ_BUFFER:
args->handler = task_in_intr;
args->command_type = IDE_DRIVE_TASK_IN;
ar->handler = task_in_intr;
ar->command_type = IDE_DRIVE_TASK_IN;
return;
case CFA_WRITE_SECT_WO_ERASE:
......@@ -589,56 +586,56 @@ void ide_cmd_type_parser(struct ata_taskfile *args)
case WIN_WRITE_VERIFY:
case WIN_WRITE_BUFFER:
case WIN_DOWNLOAD_MICROCODE:
args->prehandler = pre_task_out_intr;
args->handler = task_out_intr;
args->command_type = IDE_DRIVE_TASK_RAW_WRITE;
ar->prehandler = pre_task_out_intr;
ar->handler = task_out_intr;
ar->command_type = IDE_DRIVE_TASK_RAW_WRITE;
return;
case WIN_MULTREAD:
case WIN_MULTREAD_EXT:
args->handler = task_mulin_intr;
args->command_type = IDE_DRIVE_TASK_IN;
ar->handler = task_mulin_intr;
ar->command_type = IDE_DRIVE_TASK_IN;
return;
case CFA_WRITE_MULTI_WO_ERASE:
case WIN_MULTWRITE:
case WIN_MULTWRITE_EXT:
args->prehandler = pre_task_mulout_intr;
args->handler = task_mulout_intr;
args->command_type = IDE_DRIVE_TASK_RAW_WRITE;
ar->prehandler = pre_task_mulout_intr;
ar->handler = task_mulout_intr;
ar->command_type = IDE_DRIVE_TASK_RAW_WRITE;
return;
case WIN_SECURITY_DISABLE:
case WIN_SECURITY_ERASE_UNIT:
case WIN_SECURITY_SET_PASS:
case WIN_SECURITY_UNLOCK:
args->handler = task_out_intr;
args->command_type = IDE_DRIVE_TASK_OUT;
ar->handler = task_out_intr;
ar->command_type = IDE_DRIVE_TASK_OUT;
return;
case WIN_SMART:
if (taskfile->feature == SMART_WRITE_LOG_SECTOR)
args->prehandler = pre_task_out_intr;
ar->prehandler = pre_task_out_intr;
args->taskfile.low_cylinder = SMART_LCYL_PASS;
args->taskfile.high_cylinder = SMART_HCYL_PASS;
ar->taskfile.low_cylinder = SMART_LCYL_PASS;
ar->taskfile.high_cylinder = SMART_HCYL_PASS;
switch(args->taskfile.feature) {
switch(ar->taskfile.feature) {
case SMART_READ_VALUES:
case SMART_READ_THRESHOLDS:
case SMART_READ_LOG_SECTOR:
args->handler = task_in_intr;
args->command_type = IDE_DRIVE_TASK_IN;
ar->handler = task_in_intr;
ar->command_type = IDE_DRIVE_TASK_IN;
return;
case SMART_WRITE_LOG_SECTOR:
args->handler = task_out_intr;
args->command_type = IDE_DRIVE_TASK_OUT;
ar->handler = task_out_intr;
ar->command_type = IDE_DRIVE_TASK_OUT;
return;
default:
args->handler = task_no_data_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
ar->handler = task_no_data_intr;
ar->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
}
......@@ -648,22 +645,22 @@ void ide_cmd_type_parser(struct ata_taskfile *args)
case WIN_READDMA_QUEUED:
case WIN_READDMA_EXT:
case WIN_READDMA_QUEUED_EXT:
args->command_type = IDE_DRIVE_TASK_IN;
ar->command_type = IDE_DRIVE_TASK_IN;
return;
case WIN_WRITEDMA:
case WIN_WRITEDMA_QUEUED:
case WIN_WRITEDMA_EXT:
case WIN_WRITEDMA_QUEUED_EXT:
args->command_type = IDE_DRIVE_TASK_RAW_WRITE;
ar->command_type = IDE_DRIVE_TASK_RAW_WRITE;
return;
#endif
case WIN_SETFEATURES:
args->handler = task_no_data_intr;
switch(args->taskfile.feature) {
ar->handler = task_no_data_intr;
switch (ar->taskfile.feature) {
case SETFEATURES_XFER:
args->command_type = IDE_DRIVE_TASK_SET_XFER;
ar->command_type = IDE_DRIVE_TASK_SET_XFER;
return;
case SETFEATURES_DIS_DEFECT:
case SETFEATURES_EN_APM:
......@@ -681,18 +678,18 @@ void ide_cmd_type_parser(struct ata_taskfile *args)
case SETFEATURES_DIS_RI:
case SETFEATURES_DIS_SI:
default:
args->command_type = IDE_DRIVE_TASK_NO_DATA;
ar->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
}
case WIN_SPECIFY:
args->handler = task_no_data_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
ar->handler = task_no_data_intr;
ar->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
case WIN_RESTORE:
args->handler = recal_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
ar->handler = recal_intr;
ar->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
case WIN_DIAGNOSE:
......@@ -722,19 +719,10 @@ void ide_cmd_type_parser(struct ata_taskfile *args)
case WIN_DOORUNLOCK:
case DISABLE_SEAGATE:
case EXABYTE_ENABLE_NEST:
args->handler = task_no_data_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
case WIN_SETMULT:
args->handler = task_no_data_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
case WIN_NOP:
args->handler = task_no_data_intr;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
ar->handler = task_no_data_intr;
ar->command_type = IDE_DRIVE_TASK_NO_DATA;
return;
case WIN_FORMAT:
......@@ -743,7 +731,7 @@ void ide_cmd_type_parser(struct ata_taskfile *args)
case WIN_QUEUED_SERVICE:
case WIN_PACKETCMD:
default:
args->command_type = IDE_DRIVE_TASK_INVALID;
ar->command_type = IDE_DRIVE_TASK_INVALID;
return;
}
}
......
......@@ -184,20 +184,33 @@ void ide_set_handler(struct ata_device *drive, ata_handler_t handler,
spin_unlock_irqrestore(ch->lock, flags);
}
static u8 auto_reduce_xfer(struct ata_device *drive)
static void check_crc_errors(struct ata_device *drive)
{
if (!drive->crc_count)
return drive->current_speed;
if (!drive->using_dma)
return;
/* check the DMA crc count */
if (drive->crc_count) {
udma_enable(drive, 0, 0);
if (drive->channel->speedproc) {
u8 pio = XFER_PIO_4;
drive->crc_count = 0;
switch(drive->current_speed) {
case XFER_UDMA_7: return XFER_UDMA_6;
case XFER_UDMA_6: return XFER_UDMA_5;
case XFER_UDMA_5: return XFER_UDMA_4;
case XFER_UDMA_4: return XFER_UDMA_3;
case XFER_UDMA_3: return XFER_UDMA_2;
case XFER_UDMA_2: return XFER_UDMA_1;
case XFER_UDMA_1: return XFER_UDMA_0;
switch (drive->current_speed) {
case XFER_UDMA_7: pio = XFER_UDMA_6;
break;
case XFER_UDMA_6: pio = XFER_UDMA_5;
break;
case XFER_UDMA_5: pio = XFER_UDMA_4;
break;
case XFER_UDMA_4: pio = XFER_UDMA_3;
break;
case XFER_UDMA_3: pio = XFER_UDMA_2;
break;
case XFER_UDMA_2: pio = XFER_UDMA_1;
break;
case XFER_UDMA_1: pio = XFER_UDMA_0;
break;
/*
* OOPS we do not goto non Ultra DMA modes
* without iCRC's available we force
......@@ -205,20 +218,9 @@ static u8 auto_reduce_xfer(struct ata_device *drive)
* invoke the ATA-1 ATA-2 DMA modes.
*/
case XFER_UDMA_0:
default: return XFER_PIO_4;
default:
pio = XFER_PIO_4;
}
}
static void check_crc_errors(struct ata_device *drive)
{
if (!drive->using_dma)
return;
/* check the DMA crc count */
if (drive->crc_count) {
udma_enable(drive, 0, 0);
if (drive->channel->speedproc) {
u8 pio = auto_reduce_xfer(drive);
drive->channel->speedproc(drive, pio);
}
if (drive->current_speed >= XFER_SW_DMA_0)
......@@ -408,7 +410,6 @@ void ide_end_drive_cmd(struct ata_device *drive, struct request *rq)
ar->taskfile.low_cylinder = IN_BYTE(IDE_LCYL_REG);
ar->taskfile.high_cylinder = IN_BYTE(IDE_HCYL_REG);
ar->taskfile.device_head = IN_BYTE(IDE_SELECT_REG);
ar->cmd = drive->status;
if ((drive->id->command_set_2 & 0x0400) &&
(drive->id->cfs_enable_2 & 0x0400) &&
(drive->addressing == 1)) {
......
......@@ -235,7 +235,7 @@ int ata_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned
if (!drive->driver)
return -EPERM;
if (!drive->id || !(drive->id->capability & 1) || !drive->channel->XXX_udma)
if (!drive->id || !(drive->id->capability & 1) || !drive->channel->udma_setup)
return -EPERM;
if (ide_spin_wait_hwgroup(drive))
......
......@@ -520,12 +520,11 @@ void ide_unregister(struct ata_channel *ch)
ch->ata_write = old.ata_write;
ch->atapi_read = old.atapi_read;
ch->atapi_write = old.atapi_write;
ch->XXX_udma = old.XXX_udma;
ch->udma_setup = old.udma_setup;
ch->udma_enable = old.udma_enable;
ch->udma_start = old.udma_start;
ch->udma_stop = old.udma_stop;
ch->udma_read = old.udma_read;
ch->udma_write = old.udma_write;
ch->udma_init = old.udma_init;
ch->udma_irq_status = old.udma_irq_status;
ch->udma_timeout = old.udma_timeout;
ch->udma_irq_lost = old.udma_irq_lost;
......@@ -1092,7 +1091,7 @@ int ide_register_subdriver(struct ata_device *drive, struct ata_operations *driv
spin_unlock_irqrestore(&ide_lock, flags);
/* Default autotune or requested autotune */
if (drive->autotune != 2) {
if (drive->channel->XXX_udma) {
if (drive->channel->udma_setup) {
/*
* Force DMAing for the beginning of the check. Some
......@@ -1103,7 +1102,7 @@ int ide_register_subdriver(struct ata_device *drive, struct ata_operations *driv
*/
udma_enable(drive, 0, 0);
drive->channel->XXX_udma(drive);
drive->channel->udma_setup(drive);
#ifdef CONFIG_BLK_DEV_IDE_TCQ_DEFAULT
udma_tcq_enable(drive, 1);
#endif
......
......@@ -101,11 +101,11 @@ static int ns87415_udma_stop(struct ata_device *drive)
}
static int ns87415_udma_read(struct ata_device *drive, struct request *rq)
static int ns87415_udma_init(struct ata_device *drive, struct request *rq)
{
ns87415_prepare_drive(drive, 1); /* select DMA xfer */
if (!ata_do_udma(1, drive, rq)) /* use standard DMA stuff */
if (!udma_pci_init(drive, rq)) /* use standard DMA stuff */
return 0;
ns87415_prepare_drive(drive, 0); /* DMA failed: select PIO xfer */
......@@ -113,26 +113,14 @@ static int ns87415_udma_read(struct ata_device *drive, struct request *rq)
return 1;
}
static int ns87415_udma_write(struct ata_device *drive, struct request *rq)
{
ns87415_prepare_drive(drive, 1); /* select DMA xfer */
if (!ata_do_udma(0, drive, rq)) /* use standard DMA stuff */
return 0;
ns87415_prepare_drive(drive, 0); /* DMA failed: select PIO xfer */
return 1;
}
static int ns87415_dmaproc(struct ata_device *drive)
static int ns87415_udma_setup(struct ata_device *drive)
{
if (drive->type != ATA_DISK) {
udma_enable(drive, 0, 0);
return 0;
}
return XXX_ide_dmaproc(drive);
return udma_pci_setup(drive);
}
#endif
......@@ -218,9 +206,8 @@ static void __init ide_init_ns87415(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->udma_stop = ns87415_udma_stop;
hwif->udma_read = ns87415_udma_read;
hwif->udma_write = ns87415_udma_write;
hwif->XXX_udma = ns87415_dmaproc;
hwif->udma_init = ns87415_udma_init;
hwif->udma_setup = ns87415_udma_setup;
}
#endif
......
......@@ -164,7 +164,7 @@ int ata_start_dma(struct ata_device *drive, struct request *rq)
/*
* Configure a device for DMA operation.
*/
int XXX_ide_dmaproc(struct ata_device *drive)
int udma_pci_setup(struct ata_device *drive)
{
int config_allows_dma = 1;
struct hd_driveid *id = drive->id;
......@@ -427,16 +427,6 @@ int udma_pci_stop(struct ata_device *drive)
return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0; /* verify good DMA status */
}
int udma_pci_read(struct ata_device *drive, struct request *rq)
{
return ata_do_udma(1, drive, rq);
}
int udma_pci_write(struct ata_device *drive, struct request *rq)
{
return ata_do_udma(0, drive, rq);
}
/*
* FIXME: This should be attached to a channel as we can see now!
*/
......@@ -490,18 +480,16 @@ void ata_init_dma(struct ata_channel *ch, unsigned long dma_base)
* We could just assign them, and then leave it up to the chipset
* specific code to override these after they've called this function.
*/
if (!ch->XXX_udma)
ch->XXX_udma = XXX_ide_dmaproc;
if (!ch->udma_setup)
ch->udma_setup = udma_pci_setup;
if (!ch->udma_enable)
ch->udma_enable = udma_pci_enable;
if (!ch->udma_start)
ch->udma_start = udma_pci_start;
if (!ch->udma_stop)
ch->udma_stop = udma_pci_stop;
if (!ch->udma_read)
ch->udma_read = udma_pci_read;
if (!ch->udma_write)
ch->udma_write = udma_pci_write;
if (!ch->udma_init)
ch->udma_init = udma_pci_init;
if (!ch->udma_irq_status)
ch->udma_irq_status = udma_pci_irq_status;
if (!ch->udma_timeout)
......@@ -528,16 +516,20 @@ void ata_init_dma(struct ata_channel *ch, unsigned long dma_base)
* It's exported only for host chips which use it for fallback or (too) late
* capability checking.
*/
int ata_do_udma(unsigned int reading, struct ata_device *drive, struct request *rq)
int udma_pci_init(struct ata_device *drive, struct request *rq)
{
u8 cmd;
if (ata_start_dma(drive, rq))
return 1;
if (drive->type != ATA_DISK)
return 0;
reading <<= 3;
if (rq_data_dir(rq) == READ)
cmd = 0x08;
else
cmd = 0x00;
ide_set_handler(drive, ide_dma_intr, WAIT_CMD, dma_timer_expiry); /* issue cmd to drive */
if ((rq->flags & REQ_DRIVE_ACB) && (drive->addressing == 1)) {
......@@ -545,22 +537,19 @@ int ata_do_udma(unsigned int reading, struct ata_device *drive, struct request *
struct ata_taskfile *args = rq->special;
outb(args->cmd, IDE_COMMAND_REG);
} else if (drive->addressing) {
outb(reading ? WIN_READDMA_EXT : WIN_WRITEDMA_EXT, IDE_COMMAND_REG);
} else {
outb(reading ? WIN_READDMA : WIN_WRITEDMA, IDE_COMMAND_REG);
}
} else if (drive->addressing)
outb(cmd ? WIN_READDMA_EXT : WIN_WRITEDMA_EXT, IDE_COMMAND_REG);
else
outb(cmd ? WIN_READDMA : WIN_WRITEDMA, IDE_COMMAND_REG);
return udma_start(drive, rq);
}
EXPORT_SYMBOL(ata_do_udma);
EXPORT_SYMBOL(ide_dma_intr);
EXPORT_SYMBOL(udma_pci_enable);
EXPORT_SYMBOL(udma_pci_start);
EXPORT_SYMBOL(udma_pci_stop);
EXPORT_SYMBOL(udma_pci_read);
EXPORT_SYMBOL(udma_pci_write);
EXPORT_SYMBOL(udma_pci_init);
EXPORT_SYMBOL(udma_pci_irq_status);
EXPORT_SYMBOL(udma_pci_timeout);
EXPORT_SYMBOL(udma_pci_irq_lost);
......@@ -563,7 +563,7 @@ static int config_chipset_for_dma(struct ata_device *drive, byte udma)
return !(hwif->speedproc(drive, mode));
}
static int config_drive_xfer_rate(struct ata_device *drive)
static int pdc202xx_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
struct ata_channel *hwif = drive->channel;
......@@ -670,7 +670,7 @@ static int pdc202xx_udma_irq_status(struct ata_device *drive)
return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
}
static void pdc202xx_bug (struct ata_device *drive)
static void pdc202xx_bug(struct ata_device *drive)
{
if (!drive->channel->resetproc)
return;
......@@ -678,10 +678,6 @@ static void pdc202xx_bug (struct ata_device *drive)
drive->channel->resetproc(drive);
}
static int pdc202xx_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
#endif
void pdc202xx_new_reset(struct ata_device *drive)
......@@ -838,7 +834,7 @@ static void __init ide_init_pdc202xx(struct ata_channel *hwif)
if (hwif->dma_base) {
hwif->udma_irq_lost = pdc202xx_bug;
hwif->udma_timeout = pdc202xx_bug;
hwif->XXX_udma = pdc202xx_dmaproc;
hwif->udma_setup = pdc202xx_udma_setup;
hwif->highmem = 1;
if (!noautodma)
hwif->autodma = 1;
......
......@@ -619,16 +619,11 @@ ide_startstop_t do_pdc4030_io(struct ata_device *drive, struct ata_taskfile *arg
return ide_stopped;
}
ata_irq_enable(drive, 1); /* clear nIEN */
ata_irq_enable(drive, 1);
ata_mask(drive);
outb(taskfile->feature, IDE_FEATURE_REG);
outb(taskfile->sector_count, IDE_NSECTOR_REG);
/* refers to number of sectors to transfer */
outb(taskfile->sector_number, IDE_SECTOR_REG);
/* refers to sector offset or start sector */
outb(taskfile->low_cylinder, IDE_LCYL_REG);
outb(taskfile->high_cylinder, IDE_HCYL_REG);
ata_out_regfile(drive, taskfile);
outb(taskfile->device_head, IDE_SELECT_REG);
outb(args->cmd, IDE_COMMAND_REG);
......@@ -708,12 +703,7 @@ ide_startstop_t promise_do_request(struct ata_device *drive, struct request *rq,
args.taskfile.low_cylinder = (block>>=8);
args.taskfile.high_cylinder = (block>>=8);
args.taskfile.device_head = ((block>>8)&0x0f)|drive->select.all;
args.cmd = (rq_data_dir(rq)==READ)?PROMISE_READ:PROMISE_WRITE;
/* We can't call ide_cmd_type_parser here, since it won't understand
our command, but that doesn't matter, since we don't use the
generic interrupt handlers either. Setup the bits of args that we
will need. */
args.cmd = (rq_data_dir(rq) == READ) ? PROMISE_READ : PROMISE_WRITE;
args.handler = NULL;
rq->special = &args;
......
......@@ -253,7 +253,7 @@ static void piix_tune_drive(struct ata_device *drive, unsigned char pio)
#ifdef CONFIG_BLK_DEV_IDEDMA
int piix_dmaproc(struct ata_device *drive)
static int piix_udma_setup(struct ata_device *drive)
{
short w80 = drive->channel->udma_four;
......@@ -399,7 +399,7 @@ static void __init piix_init_channel(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->highmem = 1;
hwif->XXX_udma = piix_dmaproc;
hwif->udma_setup = piix_udma_setup;
# ifdef CONFIG_IDEDMA_AUTO
if (!noautodma)
hwif->autodma = 1;
......
......@@ -290,7 +290,7 @@ static int config_chipset_for_dma(struct ata_device *drive)
return !svwks_tune_chipset(drive, mode);
}
static int config_drive_xfer_rate(struct ata_device *drive)
static int svwks_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
int on = 1;
......@@ -387,11 +387,6 @@ static int svwks_udma_stop(struct ata_device *drive)
return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0; /* verify good DMA status */
}
static int svwks_dmaproc(struct ata_device *drive)
{
return config_drive_xfer_rate(drive);
}
#endif
static unsigned int __init svwks_init_chipset(struct pci_dev *dev)
......@@ -506,7 +501,7 @@ static void __init ide_init_svwks(struct ata_channel *hwif)
hwif->autodma = 1;
#endif
hwif->udma_stop = svwks_udma_stop;
hwif->XXX_udma = svwks_dmaproc;
hwif->udma_setup = svwks_udma_setup;
hwif->highmem = 1;
} else {
hwif->autodma = 0;
......
......@@ -466,12 +466,14 @@ static int config_chipset_for_dma(struct ata_device *drive, u8 udma)
return !sis5513_tune_chipset(drive, mode);
}
static int config_drive_xfer_rate(struct ata_device *drive)
static int sis5513_udma_setup(struct ata_device *drive)
{
struct hd_driveid *id = drive->id;
int on = 0;
int verbose = 1;
config_drive_art_rwp(drive);
config_art_rwp_pio(drive, 5);
config_chipset_for_pio(drive, 5);
if (id && (id->capability & 1) && drive->channel->autodma) {
......@@ -520,14 +522,6 @@ static int config_drive_xfer_rate(struct ata_device *drive)
return 0;
}
static int sis5513_dmaproc(struct ata_device *drive)
{
config_drive_art_rwp(drive);
config_art_rwp_pio(drive, 5);
return config_drive_xfer_rate(drive);
}
#endif
/* Chip detection and general config */
......@@ -633,7 +627,7 @@ static void __init ide_init_sis5513(struct ata_channel *hwif)
if (chipset_family > ATA_16) {
hwif->autodma = noautodma ? 0 : 1;
hwif->highmem = 1;
hwif->XXX_udma = sis5513_dmaproc;
hwif->udma_setup = sis5513_udma_setup;
} else {
#endif
hwif->autodma = 0;
......
......@@ -130,7 +130,7 @@ static int config_for_dma(struct ata_device *drive)
* Check to see if the drive and
* chipset is capable of DMA mode
*/
static int sl82c105_check_drive(struct ata_device *drive)
static int sl82c105_dma_setup(struct ata_device *drive)
{
int on = 0;
......@@ -172,15 +172,6 @@ static int sl82c105_check_drive(struct ata_device *drive)
return 0;
}
/*
* Our very own dmaproc. We need to intercept various calls
* to fix up the SL82C105 specific behaviour.
*/
static int sl82c105_dmaproc(struct ata_device *drive)
{
return sl82c105_check_drive(drive);
}
/*
* The SL82C105 holds off all IDE interrupts while in DMA mode until
* all DMA activity is completed. Sometimes this causes problems (eg,
......@@ -215,16 +206,10 @@ static void sl82c105_dma_enable(struct ata_device *drive, int on, int verbose)
* The generic IDE core will have disabled the BMEN bit before this
* function is called.
*/
static int sl82c105_dma_read(struct ata_device *drive, struct request *rq)
{
sl82c105_reset_host(drive->channel->pci_dev);
return udma_pci_read(drive, rq);
}
static int sl82c105_dma_write(struct ata_device *drive, struct request *rq)
static int sl82c105_dma_init(struct ata_device *drive, struct request *rq)
{
sl82c105_reset_host(drive->channel->pci_dev);
return udma_pci_write(drive, rq);
return udma_pci_init(drive, rq);
}
static void sl82c105_timeout(struct ata_device *drive)
......@@ -354,12 +339,11 @@ static void __init sl82c105_init_dma(struct ata_channel *ch, unsigned long dma_b
ata_init_dma(ch, dma_base);
if (bridge_rev <= 5)
ch->XXX_udma = NULL;
ch->udma_setup = NULL;
else {
ch->XXX_udma = sl82c105_dmaproc;
ch->udma_setup = sl82c105_dma_setup;
ch->udma_enable = sl82c105_dma_enable;
ch->udma_read = sl82c105_dma_read;
ch->udma_write = sl82c105_dma_write;
ch->udma_init = sl82c105_dma_init;
ch->udma_timeout = sl82c105_timeout;
ch->udma_irq_lost = sl82c105_lostirq;
}
......
......@@ -191,10 +191,18 @@ static int trm290_udma_stop(struct ata_device *drive)
return (inw(ch->dma_base + 2) != 0x00ff);
}
static int do_udma(unsigned int reading, struct ata_device *drive, struct request *rq)
static int trm290_udma_init(struct ata_device *drive, struct request *rq)
{
struct ata_channel *ch = drive->channel;
unsigned int count, writing;
unsigned int count;
int writing;
int reading;
if (rq_data_dir(rq) == READ)
reading = 1;
else
reading = 0;
if (!reading) {
reading = 0;
......@@ -228,24 +236,14 @@ static int do_udma(unsigned int reading, struct ata_device *drive, struct reques
return 0;
}
static int trm290_udma_read(struct ata_device *drive, struct request *rq)
{
return do_udma(1, drive, rq);
}
static int trm290_udma_write(struct ata_device *drive, struct request *rq)
{
return do_udma(0, drive, rq);
}
static int trm290_udma_irq_status(struct ata_device *drive)
{
return (inw(drive->channel->dma_base + 2) == 0x00ff);
}
static int trm290_dmaproc(struct ata_device *drive)
static int trm290_udma_setup(struct ata_device *drive)
{
return XXX_ide_dmaproc(drive);
return udma_pci_setup(drive);
}
#endif
......@@ -301,10 +299,9 @@ static void __init trm290_init_channel(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
hwif->udma_start = trm290_udma_start;
hwif->udma_stop = trm290_udma_stop;
hwif->udma_read = trm290_udma_read;
hwif->udma_write = trm290_udma_write;
hwif->udma_init = trm290_udma_init;
hwif->udma_irq_status = trm290_udma_irq_status;
hwif->XXX_udma = trm290_dmaproc;
hwif->udma_setup = trm290_udma_setup;
#endif
hwif->selectproc = &trm290_selectproc;
......
......@@ -223,7 +223,7 @@ static void via82cxxx_tune_drive(struct ata_device *drive, unsigned char pio)
}
#ifdef CONFIG_BLK_DEV_IDEDMA
static int via82cxxx_dmaproc(struct ata_device *drive)
static int via82cxxx_udma_setup(struct ata_device *drive)
{
short w80 = drive->channel->udma_four;
......@@ -368,7 +368,7 @@ static void __init via82cxxx_init_channel(struct ata_channel *hwif)
#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
hwif->highmem = 1;
hwif->XXX_udma = &via82cxxx_dmaproc;
hwif->udma_setup = via82cxxx_udma_setup;
# ifdef CONFIG_IDEDMA_AUTO
if (!noautodma)
hwif->autodma = 1;
......
......@@ -407,12 +407,8 @@ static ide_startstop_t idescsi_issue_pc(struct ata_device *drive, struct request
pc->current_position=pc->buffer;
bcount = min(pc->request_transfer, 63 * 1024); /* Request to transfer the entire buffer at once */
if (drive->using_dma && rq->bio) {
if (test_bit (PC_WRITING, &pc->flags))
dma_ok = !udma_write(drive, rq);
else
dma_ok = !udma_read(drive, rq);
}
if (drive->using_dma && rq->bio)
dma_ok = !udma_init(drive, rq);
ata_select(drive, 10);
ata_irq_enable(drive, 1);
......
......@@ -425,7 +425,7 @@ struct ata_channel {
* mode itself.
*/
/* setup disk on a channel for a particular transfer mode */
/* setup disk on a channel for a particular PIO transfer mode */
void (*tuneproc) (struct ata_device *, byte pio);
/* setup the chipset timing for a particular transfer mode */
......@@ -455,18 +455,13 @@ struct ata_channel {
void (*atapi_read)(struct ata_device *, void *, unsigned int);
void (*atapi_write)(struct ata_device *, void *, unsigned int);
int (*XXX_udma)(struct ata_device *);
int (*udma_setup)(struct ata_device *);
void (*udma_enable)(struct ata_device *, int, int);
int (*udma_start) (struct ata_device *, struct request *rq);
int (*udma_stop) (struct ata_device *);
int (*udma_read) (struct ata_device *, struct request *rq);
int (*udma_write) (struct ata_device *, struct request *rq);
int (*udma_init) (struct ata_device *, struct request *rq);
int (*udma_irq_status) (struct ata_device *);
void (*udma_timeout) (struct ata_device *);
void (*udma_irq_lost) (struct ata_device *);
......@@ -770,14 +765,12 @@ static inline int udma_stop(struct ata_device *drive)
return drive->channel->udma_stop(drive);
}
static inline int udma_read(struct ata_device *drive, struct request *rq)
{
return drive->channel->udma_read(drive, rq);
}
static inline int udma_write(struct ata_device *drive, struct request *rq)
/*
* Initiate actual DMA data transfer. The direction is encoded in the request.
*/
static inline int udma_init(struct ata_device *drive, struct request *rq)
{
return drive->channel->udma_write(drive, rq);
return drive->channel->udma_init(drive, rq);
}
static inline int udma_irq_status(struct ata_device *drive)
......@@ -797,14 +790,14 @@ static inline void udma_irq_lost(struct ata_device *drive)
#ifdef CONFIG_BLK_DEV_IDEDMA
void udma_pci_enable(struct ata_device *drive, int on, int verbose);
int udma_pci_start(struct ata_device *drive, struct request *rq);
int udma_pci_stop(struct ata_device *drive);
int udma_pci_read(struct ata_device *drive, struct request *rq);
int udma_pci_write(struct ata_device *drive, struct request *rq);
int udma_pci_irq_status(struct ata_device *drive);
void udma_pci_timeout(struct ata_device *drive);
void udma_pci_irq_lost(struct ata_device *);
extern void udma_pci_enable(struct ata_device *drive, int on, int verbose);
extern int udma_pci_start(struct ata_device *drive, struct request *rq);
extern int udma_pci_stop(struct ata_device *drive);
extern int udma_pci_init(struct ata_device *drive, struct request *rq);
extern int udma_pci_irq_status(struct ata_device *drive);
extern void udma_pci_timeout(struct ata_device *drive);
extern void udma_pci_irq_lost(struct ata_device *);
extern int udma_pci_setup(struct ata_device *);
extern int udma_new_table(struct ata_channel *, struct request *);
extern void udma_destroy_table(struct ata_channel *);
......@@ -813,14 +806,11 @@ extern void udma_print(struct ata_device *);
extern int udma_black_list(struct ata_device *);
extern int udma_white_list(struct ata_device *);
extern int ata_do_udma(unsigned int reading, struct ata_device *drive, struct request *rq);
extern ide_startstop_t udma_tcq_taskfile(struct ata_device *, struct request *);
extern int udma_tcq_enable(struct ata_device *, int);
extern ide_startstop_t ide_dma_intr(struct ata_device *, struct request *);
extern int check_drive_lists(struct ata_device *, int good_bad);
extern int XXX_ide_dmaproc(struct ata_device *);
extern void ide_release_dma(struct ata_channel *);
extern int ata_start_dma(struct ata_device *, struct request *rq);
......
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