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path: root/drivers/ide/tx4939ide.c
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Diffstat (limited to 'drivers/ide/tx4939ide.c')
-rw-r--r--drivers/ide/tx4939ide.c161
1 files changed, 63 insertions, 98 deletions
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 40b0812a045c..0040a9a3e26e 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -18,6 +18,8 @@
#include <linux/io.h>
#include <linux/scatterlist.h>
+#include <asm/ide.h>
+
#define MODNAME "tx4939ide"
/* ATA Shadow Registers (8-bit except for Data which is 16-bit) */
@@ -230,7 +232,7 @@ static u8 tx4939ide_clear_dma_status(void __iomem *base)
#ifdef __BIG_ENDIAN
/* custom ide_build_dmatable to handle swapped layout */
-static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+static int tx4939ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
u32 *table = (u32 *)hwif->dmatable_cpu;
@@ -238,11 +240,7 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
int i;
struct scatterlist *sg;
- hwif->sg_nents = ide_build_sglist(drive, rq);
- if (hwif->sg_nents == 0)
- return 0;
-
- for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
+ for_each_sg(hwif->sg_table, sg, cmd->sg_nents, i) {
u32 cur_addr, cur_len, bcount;
cur_addr = sg_dma_address(sg);
@@ -281,48 +279,36 @@ use_pio_instead:
printk(KERN_ERR "%s: %s\n", drive->name,
count ? "DMA table too small" : "empty DMA table?");
- ide_destroy_dmatable(drive);
-
return 0; /* revert to PIO for this request */
}
#else
#define tx4939ide_build_dmatable ide_build_dmatable
#endif
-static int tx4939ide_dma_setup(ide_drive_t *drive)
+static int tx4939ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
void __iomem *base = TX4939IDE_BASE(hwif);
- struct request *rq = hwif->rq;
- u8 reading;
- int nent;
-
- if (rq_data_dir(rq))
- reading = 0;
- else
- reading = ATA_DMA_WR;
+ u8 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR;
/* fall back to PIO! */
- nent = tx4939ide_build_dmatable(drive, rq);
- if (!nent) {
- ide_map_sg(drive, rq);
+ if (tx4939ide_build_dmatable(drive, cmd) == 0)
return 1;
- }
/* PRD table */
tx4939ide_writel(hwif->dmatable_dma, base, TX4939IDE_PRD_Ptr);
/* specify r/w */
- tx4939ide_writeb(reading, base, TX4939IDE_DMA_Cmd);
+ tx4939ide_writeb(rw, base, TX4939IDE_DMA_Cmd);
/* clear INTR & ERROR flags */
tx4939ide_clear_dma_status(base);
- drive->waiting_for_dma = 1;
-
tx4939ide_writew(SECTOR_SIZE / 2, base, drive->dn ?
TX4939IDE_Xfer_Cnt_2 : TX4939IDE_Xfer_Cnt_1);
- tx4939ide_writew(rq->nr_sectors, base, TX4939IDE_Sec_Cnt);
+
+ tx4939ide_writew(cmd->rq->nr_sectors, base, TX4939IDE_Sec_Cnt);
+
return 0;
}
@@ -333,8 +319,6 @@ static int tx4939ide_dma_end(ide_drive_t *drive)
void __iomem *base = TX4939IDE_BASE(hwif);
u16 ctl = tx4939ide_readw(base, TX4939IDE_Int_Ctl);
- drive->waiting_for_dma = 0;
-
/* get DMA command mode */
dma_cmd = tx4939ide_readb(base, TX4939IDE_DMA_Cmd);
/* stop DMA */
@@ -343,11 +327,9 @@ static int tx4939ide_dma_end(ide_drive_t *drive)
/* read and clear the INTR & ERROR bits */
dma_stat = tx4939ide_clear_dma_status(base);
- /* purge DMA mappings */
- ide_destroy_dmatable(drive);
- /* verify good DMA status */
wmb();
+ /* verify good DMA status */
if ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) == 0 &&
(ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) ==
(TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST))
@@ -437,7 +419,7 @@ static int tx4939ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
return ide_allocate_dma_engine(hwif);
}
-static void tx4939ide_tf_load_fixup(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load_fixup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
void __iomem *base = TX4939IDE_BASE(hwif);
@@ -447,7 +429,7 @@ static void tx4939ide_tf_load_fixup(ide_drive_t *drive, ide_task_t *task)
* Fix ATA100 CORE System Control Register. (The write to the
* Device/Head register may write wrong data to the System
* Control Register)
- * While Sys_Ctl is written here, selectproc is not needed.
+ * While Sys_Ctl is written here, dev_select() is not needed.
*/
tx4939ide_writew(sysctl, base, TX4939IDE_Sys_Ctl);
}
@@ -465,97 +447,80 @@ static void tx4939ide_outb(u8 value, unsigned long port)
__raw_writeb(value, (void __iomem *)port);
}
-static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &task->tf;
- u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
+ struct ide_taskfile *tf = &cmd->tf;
+ u8 HIHI = cmd->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
- if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
HIHI = 0xFF;
- if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
- u16 data = (tf->hob_data << 8) | tf->data;
-
- /* no endian swap */
- __raw_writew(data, (void __iomem *)io_ports->data_addr);
- }
-
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
tx4939ide_outb(tf->hob_feature, io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
tx4939ide_outb(tf->hob_nsect, io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
tx4939ide_outb(tf->hob_lbal, io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
tx4939ide_outb(tf->hob_lbam, io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
tx4939ide_outb(tf->hob_lbah, io_ports->lbah_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
tx4939ide_outb(tf->feature, io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
tx4939ide_outb(tf->nsect, io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
tx4939ide_outb(tf->lbal, io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
tx4939ide_outb(tf->lbam, io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+ if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
tx4939ide_outb(tf->lbah, io_ports->lbah_addr);
- if (task->tf_flags & IDE_TFLAG_OUT_DEVICE) {
+ if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE) {
tx4939ide_outb((tf->device & HIHI) | drive->select,
io_ports->device_addr);
- tx4939ide_tf_load_fixup(drive, task);
+ tx4939ide_tf_load_fixup(drive);
}
}
-static void tx4939ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &task->tf;
-
- if (task->tf_flags & IDE_TFLAG_IN_DATA) {
- u16 data;
-
- /* no endian swap */
- data = __raw_readw((void __iomem *)io_ports->data_addr);
- tf->data = data & 0xff;
- tf->hob_data = (data >> 8) & 0xff;
- }
+ struct ide_taskfile *tf = &cmd->tf;
/* be sure we're looking at the low order bits */
- tx4939ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
+ tx4939ide_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);
- if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
- tf->feature = tx4939ide_inb(io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ if (cmd->tf_flags & IDE_TFLAG_IN_ERROR)
+ tf->error = tx4939ide_inb(io_ports->feature_addr);
+ if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
tf->nsect = tx4939ide_inb(io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
tf->lbal = tx4939ide_inb(io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
tf->lbam = tx4939ide_inb(io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
tf->lbah = tx4939ide_inb(io_ports->lbah_addr);
- if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
tf->device = tx4939ide_inb(io_ports->device_addr);
- if (task->tf_flags & IDE_TFLAG_LBA48) {
- tx4939ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
-
- if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
- tf->hob_feature =
- tx4939ide_inb(io_ports->feature_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
- tf->hob_nsect = tx4939ide_inb(io_ports->nsect_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
- tf->hob_lbal = tx4939ide_inb(io_ports->lbal_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
- tf->hob_lbam = tx4939ide_inb(io_ports->lbam_addr);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
- tf->hob_lbah = tx4939ide_inb(io_ports->lbah_addr);
+ if (cmd->tf_flags & IDE_TFLAG_LBA48) {
+ tx4939ide_outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr);
+
+ if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR)
+ tf->hob_error = tx4939ide_inb(io_ports->feature_addr);
+ if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = tx4939ide_inb(io_ports->nsect_addr);
+ if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = tx4939ide_inb(io_ports->lbal_addr);
+ if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = tx4939ide_inb(io_ports->lbam_addr);
+ if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = tx4939ide_inb(io_ports->lbah_addr);
}
}
@@ -589,9 +554,9 @@ static const struct ide_tp_ops tx4939ide_tp_ops = {
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
+ .write_devctl = ide_write_devctl,
- .set_irq = ide_set_irq,
-
+ .dev_select = ide_dev_select,
.tf_load = tx4939ide_tf_load,
.tf_read = tx4939ide_tf_read,
@@ -601,20 +566,21 @@ static const struct ide_tp_ops tx4939ide_tp_ops = {
#else /* __LITTLE_ENDIAN */
-static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
{
- ide_tf_load(drive, task);
- if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
- tx4939ide_tf_load_fixup(drive, task);
+ ide_tf_load(drive, cmd);
+
+ if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
+ tx4939ide_tf_load_fixup(drive);
}
static const struct ide_tp_ops tx4939ide_tp_ops = {
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
+ .write_devctl = ide_write_devctl,
- .set_irq = ide_set_irq,
-
+ .dev_select = ide_dev_select,
.tf_load = tx4939ide_tf_load,
.tf_read = ide_tf_read,
@@ -634,12 +600,11 @@ static const struct ide_port_ops tx4939ide_port_ops = {
static const struct ide_dma_ops tx4939ide_dma_ops = {
.dma_host_set = tx4939ide_dma_host_set,
.dma_setup = tx4939ide_dma_setup,
- .dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = tx4939ide_dma_end,
.dma_test_irq = tx4939ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
- .dma_timeout = ide_dma_timeout,
+ .dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_sff_read_status = tx4939ide_dma_sff_read_status,
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 01:58:53 +0300