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sata_promise: new EH conversion for 20619 chips, take 2

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This patch updates the sata_promise driver to use new-style
libata error handling for 20619 (TX4000) chips. sata_promise
already uses new EH for the other chips it supports, so the
patch is quite simple:

* remove ->phy_reset and ->eng_timeout ops from pdc_pata_ops,
  and instead bind ->freeze, ->thaw, ->error_handler, and
  ->post_internal_cmd to existing new EH functions
* drop ATA_FLAG_SRST from board_20619's flags
* remove now unused pdc_pata_phy_reset() and pdc_eng_timeout()

Tested on a TX4000 with both modern working disks and old/quirky
disks. Also used a CD-RW drive to test reading and writing CDs.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Mikael Pettersson 2007-02-11 23:19:53 +01:00 committed by Jeff Garzik
parent 2fb8b49fb2
commit 5387373bfe
1 changed files with 4 additions and 51 deletions
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55
drivers/ata/sata_promise.c
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@ -119,9 +119,7 @@ static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static irqreturn_t pdc_interrupt (int irq, void *dev_instance);
static void pdc_eng_timeout(struct ata_port *ap);
static int pdc_port_start(struct ata_port *ap);
static void pdc_pata_phy_reset(struct ata_port *ap);
static void pdc_qc_prep(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
@ -215,12 +213,12 @@ static const struct ata_port_operations pdc_pata_ops = {
.dev_select = ata_std_dev_select,
.check_atapi_dma = pdc_check_atapi_dma,
.phy_reset = pdc_pata_phy_reset,
.qc_prep = pdc_qc_prep,
.qc_issue = pdc_qc_issue_prot,
.freeze = pdc_freeze,
.thaw = pdc_thaw,
.error_handler = pdc_error_handler,
.data_xfer = ata_data_xfer,
.eng_timeout = pdc_eng_timeout,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
.irq_on = ata_irq_on,
@ -253,7 +251,7 @@ static const struct ata_port_info pdc_port_info[] = {
/* board_20619 */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@ -389,14 +387,6 @@ static void pdc_pata_cbl_detect(struct ata_port *ap)
ap->cbl = ATA_CBL_PATA80;
}
static void pdc_pata_phy_reset(struct ata_port *ap)
{
pdc_pata_cbl_detect(ap);
pdc_reset_port(ap);
ata_port_probe(ap);
ata_bus_reset(ap);
}
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
@ -599,43 +589,6 @@ static void pdc_post_internal_cmd(struct ata_queued_cmd *qc)
pdc_reset_port(ap);
}
static void pdc_eng_timeout(struct ata_port *ap)
{
struct ata_host *host = ap->host;
u8 drv_stat;
struct ata_queued_cmd *qc;
unsigned long flags;
DPRINTK("ENTER\n");
spin_lock_irqsave(&host->lock, flags);
qc = ata_qc_from_tag(ap, ap->active_tag);
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
case ATA_PROT_NODATA:
ata_port_printk(ap, KERN_ERR, "command timeout\n");
drv_stat = ata_wait_idle(ap);
qc->err_mask |= __ac_err_mask(drv_stat);
break;
default:
drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
ata_port_printk(ap, KERN_ERR,
"unknown timeout, cmd 0x%x stat 0x%x\n",
qc->tf.command, drv_stat);
qc->err_mask |= ac_err_mask(drv_stat);
break;
}
spin_unlock_irqrestore(&host->lock, flags);
ata_eh_qc_complete(qc);
DPRINTK("EXIT\n");
}
static inline unsigned int pdc_host_intr( struct ata_port *ap,
struct ata_queued_cmd *qc)
{