From a21a84a375ea3783cf9a53730d643c4db24371bc Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Fri, 28 Oct 2005 15:43:16 -0400 Subject: [libata pdc_adma] minor fixes and cleanups Changes mostly from Mark Lord. - fix bugs in probe-time error handling - only complete qc if not NULL - check port-level polling flags --- drivers/scsi/pdc_adma.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) (limited to 'drivers/scsi/pdc_adma.c') diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c index 9820f272f889..7999817915c3 100644 --- a/drivers/scsi/pdc_adma.c +++ b/drivers/scsi/pdc_adma.c @@ -46,7 +46,7 @@ #include #define DRV_NAME "pdc_adma" -#define DRV_VERSION "0.01" +#define DRV_VERSION "0.03" /* macro to calculate base address for ATA regs */ #define ADMA_ATA_REGS(base,port_no) ((base) + ((port_no) * 0x40)) @@ -79,7 +79,6 @@ enum { aNIEN = (1 << 8), /* irq mask: 1==masked */ aGO = (1 << 7), /* packet trigger ("Go!") */ aRSTADM = (1 << 5), /* ADMA logic reset */ - aRSTA = (1 << 2), /* ATA hard reset */ aPIOMD4 = 0x0003, /* PIO mode 4 */ /* ADMA_STATUS register bits */ @@ -452,24 +451,25 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set) struct adma_port_priv *pp; struct ata_queued_cmd *qc; void __iomem *chan = ADMA_REGS(mmio_base, port_no); - u8 drv_stat, status = readb(chan + ADMA_STATUS); + u8 drv_stat = 0, status = readb(chan + ADMA_STATUS); if (status == 0) continue; handled = 1; adma_enter_reg_mode(ap); - if ((ap->flags & ATA_FLAG_PORT_DISABLED)) + if (ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR)) continue; pp = ap->private_data; if (!pp || pp->state != adma_state_pkt) continue; qc = ata_qc_from_tag(ap, ap->active_tag); - drv_stat = 0; - if ((status & (aPERR | aPSD | aUIRQ))) - drv_stat = ATA_ERR; - else if (pp->pkt[0] != cDONE) - drv_stat = ATA_ERR; - ata_qc_complete(qc, drv_stat); + if (qc && (!(qc->tf.ctl & ATA_NIEN))) { + if ((status & (aPERR | aPSD | aUIRQ))) + drv_stat = ATA_ERR; + else if (pp->pkt[0] != cDONE) + drv_stat = ATA_ERR; + ata_qc_complete(qc, drv_stat); + } } return handled; } @@ -561,15 +561,15 @@ static int adma_port_start(struct ata_port *ap) if ((pp->pkt_dma & 7) != 0) { printk("bad alignment for pp->pkt_dma: %08x\n", (u32)pp->pkt_dma); - goto err_out_kfree2; + dma_free_coherent(dev, ADMA_PKT_BYTES, + pp->pkt, pp->pkt_dma); + goto err_out_kfree; } memset(pp->pkt, 0, ADMA_PKT_BYTES); ap->private_data = pp; adma_reinit_engine(ap); return 0; -err_out_kfree2: - kfree(pp); err_out_kfree: kfree(pp); err_out: -- cgit v1.2.2 From ac19bff25b6834d858274406a686f2227dd8489d Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Sat, 29 Oct 2005 13:58:21 -0400 Subject: [libata] ensure ->tf_read() hook reads Status and Error registers We want ->tf_read() to get a complete snapshot of all taskfile registers, without requiring the callers to manually call ata_chk_status() and ata_chk_err() themselves. This also fixes a minor bug in sata_vsc where the lower bits of the feature register were incorrectly placed in the HOB (high order bits) portion of struct ata_taskfile. --- drivers/scsi/pdc_adma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/pdc_adma.c') diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c index 7999817915c3..af99feb9d237 100644 --- a/drivers/scsi/pdc_adma.c +++ b/drivers/scsi/pdc_adma.c @@ -490,7 +490,7 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set) if (qc && (!(qc->tf.ctl & ATA_NIEN))) { /* check main status, clearing INTRQ */ - u8 status = ata_chk_status(ap); + u8 status = ata_check_status(ap); if ((status & ATA_BUSY)) continue; DPRINTK("ata%u: protocol %d (dev_stat 0x%X)\n", -- cgit v1.2.2