From 2229833c1365346b64357a9263fa724f74f5e376 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 20 Jul 2007 01:11:55 +0200 Subject: ide: add ide_dev_has_iordy() helper (take 4) * Add ide_dev_has_iordy() helper and use it sl82c105 host driver. * Remove no longer needed ide_pio_data_t.use_iordy field. v2/v3: * Fix issues noticed by Sergei: - correct patch description - fix comment in ide_get_best_pio_mode() v4: * Fix "ata_" prefix (Noticed by Jeff). Acked-by: Sergei Shtylyov Cc: Jeff Garzik Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/sl82c105.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers/ide/pci/sl82c105.c') diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index a7323d278c49..f2156ee7e2bd 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -52,9 +52,10 @@ * Convert a PIO mode and cycle time to the required on/off times * for the interface. This has protection against runaway timings. */ -static unsigned int get_pio_timings(ide_pio_data_t *p) +static unsigned int get_pio_timings(ide_drive_t *drive, ide_pio_data_t *p) { unsigned int cmd_on, cmd_off; + u8 iordy = 0; cmd_on = (ide_pio_timings[p->pio_mode].active_time + 29) / 30; cmd_off = (p->cycle_time - 30 * cmd_on + 29) / 30; @@ -65,7 +66,10 @@ static unsigned int get_pio_timings(ide_pio_data_t *p) if (cmd_off == 0) cmd_off = 1; - return (cmd_on - 1) << 8 | (cmd_off - 1) | (p->use_iordy ? 0x40 : 0x00); + if (p->pio_mode > 2 || ide_dev_has_iordy(drive->id)) + iordy = 0x40; + + return (cmd_on - 1) << 8 | (cmd_off - 1) | iordy; } /* @@ -82,7 +86,7 @@ static u8 sl82c105_tune_pio(ide_drive_t *drive, u8 pio) pio = ide_get_best_pio_mode(drive, pio, 5, &p); - drv_ctrl = get_pio_timings(&p); + drv_ctrl = get_pio_timings(drive, &p); /* * Store the PIO timings so that we can restore them -- cgit v1.2.2