ide: pass command to ide_map_sg()

[linux-2.6-omap-h63xx.git] / drivers / ide / tx4939ide.c

diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 8d155ec8cca95ce11b7ec4053ea39392bf2b3fd4..39e3316ab63f7ea3111dd4aa5c933f80aa6b82af 100644 (file)
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -232,7 +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;
@@ -240,7 +240,7 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
        int i;
        struct scatterlist *sg;
 
-       for_each_sg(hwif->sg_table, sg, hwif->cmd.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);
@@ -287,23 +287,15 @@ use_pio_instead:
 #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) {
+               ide_map_sg(drive, cmd);
                return 1;
        }
 
@@ -311,7 +303,7 @@ static int tx4939ide_dma_setup(ide_drive_t *drive)
        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);
@@ -320,7 +312,9 @@ static int tx4939ide_dma_setup(ide_drive_t *drive)
 
        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;
 }