2005-11-09 22:58:16 +00:00
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/*
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* linux/drivers/ide/pci/cs5535.c
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*
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* Copyright (C) 2004-2005 Advanced Micro Devices, Inc.
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2007-08-01 21:46:45 +00:00
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* Copyright (C) 2007 Bartlomiej Zolnierkiewicz
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2005-11-09 22:58:16 +00:00
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*
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* History:
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* 09/20/2005 - Jaya Kumar <jayakumar.ide@gmail.com>
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* - Reworked tuneproc, set_drive, misc mods to prep for mainline
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* - Work was sponsored by CIS (M) Sdn Bhd.
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* Ported to Kernel 2.6.11 on June 26, 2005 by
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* Wolfgang Zuleger <wolfgang.zuleger@gmx.de>
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* Alexander Kiausch <alex.kiausch@t-online.de>
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* Originally developed by AMD for 2.4/2.6
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*
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* Development of this chipset driver was funded
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* by the nice folks at National Semiconductor/AMD.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* Documentation:
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* CS5535 documentation available from AMD
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/ide.h>
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#include "ide-timing.h"
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#define MSR_ATAC_BASE 0x51300000
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#define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0)
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#define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01)
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#define ATAC_GLD_MSR_SMI (MSR_ATAC_BASE+0x02)
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#define ATAC_GLD_MSR_ERROR (MSR_ATAC_BASE+0x03)
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#define ATAC_GLD_MSR_PM (MSR_ATAC_BASE+0x04)
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#define ATAC_GLD_MSR_DIAG (MSR_ATAC_BASE+0x05)
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#define ATAC_IO_BAR (MSR_ATAC_BASE+0x08)
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#define ATAC_RESET (MSR_ATAC_BASE+0x10)
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#define ATAC_CH0D0_PIO (MSR_ATAC_BASE+0x20)
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#define ATAC_CH0D0_DMA (MSR_ATAC_BASE+0x21)
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#define ATAC_CH0D1_PIO (MSR_ATAC_BASE+0x22)
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#define ATAC_CH0D1_DMA (MSR_ATAC_BASE+0x23)
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#define ATAC_PCI_ABRTERR (MSR_ATAC_BASE+0x24)
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#define ATAC_BM0_CMD_PRIM 0x00
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#define ATAC_BM0_STS_PRIM 0x02
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#define ATAC_BM0_PRD 0x04
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#define CS5535_CABLE_DETECT 0x48
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2007-12-24 14:23:42 +00:00
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/* Format I PIO settings. We separate out cmd and data for safer timings */
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2005-11-09 22:58:16 +00:00
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static unsigned int cs5535_pio_cmd_timings[5] =
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{ 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131 };
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static unsigned int cs5535_pio_dta_timings[5] =
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{ 0xF7F4, 0xF173, 0x8141, 0x5131, 0x1131 };
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static unsigned int cs5535_mwdma_timings[3] =
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{ 0x7F0FFFF3, 0x7F035352, 0x7f024241 };
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static unsigned int cs5535_udma_timings[5] =
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{ 0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061 };
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/* Macros to check if the register is the reset value - reset value is an
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invalid timing and indicates the register has not been set previously */
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#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL) == 0x00009172 )
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#define CS5535_BAD_DMA(timings) ( (timings & 0x000FFFFF) == 0x00077771 )
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/****
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* cs5535_set_speed - Configure the chipset to the new speed
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* @drive: Drive to set up
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* @speed: desired speed
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*
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* cs5535_set_speed() configures the chipset to a new speed.
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*/
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2007-10-11 21:53:59 +00:00
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static void cs5535_set_speed(ide_drive_t *drive, const u8 speed)
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2005-11-09 22:58:16 +00:00
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{
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u32 reg = 0, dummy;
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int unit = drive->select.b.unit;
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/* Set the PIO timings */
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if ((speed & XFER_MODE) == XFER_PIO) {
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2007-10-18 22:30:05 +00:00
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ide_drive_t *pair = ide_get_paired_drive(drive);
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2007-08-01 21:46:45 +00:00
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u8 cmd, pioa;
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2005-11-09 22:58:16 +00:00
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2007-08-01 21:46:45 +00:00
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cmd = pioa = speed - XFER_PIO_0;
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if (pair->present) {
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u8 piob = ide_get_best_pio_mode(pair, 255, 4);
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if (piob < cmd)
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cmd = piob;
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}
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2005-11-09 22:58:16 +00:00
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/* Write the speed of the current drive */
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reg = (cs5535_pio_cmd_timings[cmd] << 16) |
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cs5535_pio_dta_timings[pioa];
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wrmsr(unit ? ATAC_CH0D1_PIO : ATAC_CH0D0_PIO, reg, 0);
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/* And if nessesary - change the speed of the other drive */
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rdmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, dummy);
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if (((reg >> 16) & cs5535_pio_cmd_timings[cmd]) !=
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cs5535_pio_cmd_timings[cmd]) {
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reg &= 0x0000FFFF;
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reg |= cs5535_pio_cmd_timings[cmd] << 16;
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wrmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, 0);
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}
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/* Set bit 31 of the DMA register for PIO format 1 timings */
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rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy);
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wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA,
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reg | 0x80000000UL, 0);
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} else {
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rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy);
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reg &= 0x80000000UL; /* Preserve the PIO format bit */
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2007-08-01 21:46:42 +00:00
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if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_4)
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2005-11-09 22:58:16 +00:00
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reg |= cs5535_udma_timings[speed - XFER_UDMA_0];
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else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
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reg |= cs5535_mwdma_timings[speed - XFER_MW_DMA_0];
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else
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return;
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wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, 0);
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}
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}
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ide: move ide_config_drive_speed() calls to upper layers (take 2)
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16.
* Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program
the host for the transfer mode after programming the device. Set it
in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac
and via82cxxx host drivers.
* Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely
skip programming of host/device for the transfer mode ("smart" hosts).
Set it in it821x host driver and check it in ide_tune_dma().
* Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all
direct ->set_pio_mode/->speedproc users to use these helpers.
* Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc
methods to callers.
* Rename ->speedproc method to ->set_dma_mode, make it void and update
all implementations accordingly.
* Update ide_set_xfer_rate() comments.
* Unexport ide_config_drive_speed().
v2:
* Fix issues noticed by Sergei:
- export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt
to setting DMA modes from sc1200_set_pio_mode() to do_special()
- check IDE_HFLAG_NO_SET_MODE in ide_tune_dma()
- check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode()
- check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode()
- return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL
- don't set ->set_{pio,dma}_mode on it821x in "smart" mode
- fix build problem in pmac.c
- minor fixes in au1xxx-ide.c/cs5530.c/siimage.c
- improve patch description
Changes in behavior caused by this patch:
- HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change
PIO mode if it821x controller is in "smart" mode
- removal of two debugging printk-s (from cs5530.c and sc1200.c)
- transfer modes 0x00-0x07 passed from user space may be programmed twice on
the device (not really an issue since 0x00 is not supported correctly by
any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 15:47:51 +00:00
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/**
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* cs5535_set_dma_mode - set host controller for DMA mode
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* @drive: drive
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* @speed: DMA mode
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2005-11-09 22:58:16 +00:00
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*
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ide: move ide_config_drive_speed() calls to upper layers (take 2)
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16.
* Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program
the host for the transfer mode after programming the device. Set it
in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac
and via82cxxx host drivers.
* Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely
skip programming of host/device for the transfer mode ("smart" hosts).
Set it in it821x host driver and check it in ide_tune_dma().
* Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all
direct ->set_pio_mode/->speedproc users to use these helpers.
* Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc
methods to callers.
* Rename ->speedproc method to ->set_dma_mode, make it void and update
all implementations accordingly.
* Update ide_set_xfer_rate() comments.
* Unexport ide_config_drive_speed().
v2:
* Fix issues noticed by Sergei:
- export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt
to setting DMA modes from sc1200_set_pio_mode() to do_special()
- check IDE_HFLAG_NO_SET_MODE in ide_tune_dma()
- check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode()
- check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode()
- return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL
- don't set ->set_{pio,dma}_mode on it821x in "smart" mode
- fix build problem in pmac.c
- minor fixes in au1xxx-ide.c/cs5530.c/siimage.c
- improve patch description
Changes in behavior caused by this patch:
- HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change
PIO mode if it821x controller is in "smart" mode
- removal of two debugging printk-s (from cs5530.c and sc1200.c)
- transfer modes 0x00-0x07 passed from user space may be programmed twice on
the device (not really an issue since 0x00 is not supported correctly by
any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 15:47:51 +00:00
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* Programs the chipset for DMA mode.
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2005-11-09 22:58:16 +00:00
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*/
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2007-10-13 15:47:51 +00:00
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ide: move ide_config_drive_speed() calls to upper layers (take 2)
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16.
* Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program
the host for the transfer mode after programming the device. Set it
in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac
and via82cxxx host drivers.
* Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely
skip programming of host/device for the transfer mode ("smart" hosts).
Set it in it821x host driver and check it in ide_tune_dma().
* Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all
direct ->set_pio_mode/->speedproc users to use these helpers.
* Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc
methods to callers.
* Rename ->speedproc method to ->set_dma_mode, make it void and update
all implementations accordingly.
* Update ide_set_xfer_rate() comments.
* Unexport ide_config_drive_speed().
v2:
* Fix issues noticed by Sergei:
- export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt
to setting DMA modes from sc1200_set_pio_mode() to do_special()
- check IDE_HFLAG_NO_SET_MODE in ide_tune_dma()
- check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode()
- check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode()
- return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL
- don't set ->set_{pio,dma}_mode on it821x in "smart" mode
- fix build problem in pmac.c
- minor fixes in au1xxx-ide.c/cs5530.c/siimage.c
- improve patch description
Changes in behavior caused by this patch:
- HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change
PIO mode if it821x controller is in "smart" mode
- removal of two debugging printk-s (from cs5530.c and sc1200.c)
- transfer modes 0x00-0x07 passed from user space may be programmed twice on
the device (not really an issue since 0x00 is not supported correctly by
any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 15:47:51 +00:00
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static void cs5535_set_dma_mode(ide_drive_t *drive, const u8 speed)
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{
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2005-11-09 22:58:16 +00:00
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cs5535_set_speed(drive, speed);
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}
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2007-10-11 21:54:00 +00:00
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/**
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ide: move ide_config_drive_speed() calls to upper layers (take 2)
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16.
* Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program
the host for the transfer mode after programming the device. Set it
in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac
and via82cxxx host drivers.
* Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely
skip programming of host/device for the transfer mode ("smart" hosts).
Set it in it821x host driver and check it in ide_tune_dma().
* Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all
direct ->set_pio_mode/->speedproc users to use these helpers.
* Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc
methods to callers.
* Rename ->speedproc method to ->set_dma_mode, make it void and update
all implementations accordingly.
* Update ide_set_xfer_rate() comments.
* Unexport ide_config_drive_speed().
v2:
* Fix issues noticed by Sergei:
- export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt
to setting DMA modes from sc1200_set_pio_mode() to do_special()
- check IDE_HFLAG_NO_SET_MODE in ide_tune_dma()
- check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode()
- check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode()
- return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL
- don't set ->set_{pio,dma}_mode on it821x in "smart" mode
- fix build problem in pmac.c
- minor fixes in au1xxx-ide.c/cs5530.c/siimage.c
- improve patch description
Changes in behavior caused by this patch:
- HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change
PIO mode if it821x controller is in "smart" mode
- removal of two debugging printk-s (from cs5530.c and sc1200.c)
- transfer modes 0x00-0x07 passed from user space may be programmed twice on
the device (not really an issue since 0x00 is not supported correctly by
any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 15:47:51 +00:00
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* cs5535_set_pio_mode - set host controller for PIO mode
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2007-10-11 21:54:00 +00:00
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* @drive: drive
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* @pio: PIO mode number
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2005-11-09 22:58:16 +00:00
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*
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* A callback from the upper layers for PIO-only tuning.
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*/
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2007-10-11 21:54:00 +00:00
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static void cs5535_set_pio_mode(ide_drive_t *drive, const u8 pio)
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2005-11-09 22:58:16 +00:00
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{
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2007-08-01 21:46:45 +00:00
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cs5535_set_speed(drive, XFER_PIO_0 + pio);
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2005-11-09 22:58:16 +00:00
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}
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static u8 __devinit cs5535_cable_detect(struct pci_dev *dev)
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{
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u8 bit;
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/* if a 80 wire cable was detected */
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pci_read_config_byte(dev, CS5535_CABLE_DETECT, &bit);
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2007-07-09 21:17:58 +00:00
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return (bit & 1) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
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2005-11-09 22:58:16 +00:00
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}
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/****
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* init_hwif_cs5535 - Initialize one ide cannel
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* @hwif: Channel descriptor
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*
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* This gets invoked by the IDE driver once for each channel. It
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* performs channel-specific pre-initialization before drive probing.
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*
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*/
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static void __devinit init_hwif_cs5535(ide_hwif_t *hwif)
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{
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2007-10-11 21:54:00 +00:00
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hwif->set_pio_mode = &cs5535_set_pio_mode;
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ide: move ide_config_drive_speed() calls to upper layers (take 2)
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16.
* Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program
the host for the transfer mode after programming the device. Set it
in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac
and via82cxxx host drivers.
* Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely
skip programming of host/device for the transfer mode ("smart" hosts).
Set it in it821x host driver and check it in ide_tune_dma().
* Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all
direct ->set_pio_mode/->speedproc users to use these helpers.
* Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc
methods to callers.
* Rename ->speedproc method to ->set_dma_mode, make it void and update
all implementations accordingly.
* Update ide_set_xfer_rate() comments.
* Unexport ide_config_drive_speed().
v2:
* Fix issues noticed by Sergei:
- export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt
to setting DMA modes from sc1200_set_pio_mode() to do_special()
- check IDE_HFLAG_NO_SET_MODE in ide_tune_dma()
- check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode()
- check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode()
- return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL
- don't set ->set_{pio,dma}_mode on it821x in "smart" mode
- fix build problem in pmac.c
- minor fixes in au1xxx-ide.c/cs5530.c/siimage.c
- improve patch description
Changes in behavior caused by this patch:
- HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change
PIO mode if it821x controller is in "smart" mode
- removal of two debugging printk-s (from cs5530.c and sc1200.c)
- transfer modes 0x00-0x07 passed from user space may be programmed twice on
the device (not really an issue since 0x00 is not supported correctly by
any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 15:47:51 +00:00
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hwif->set_dma_mode = &cs5535_set_dma_mode;
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2007-10-13 15:47:52 +00:00
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if (hwif->dma_base == 0)
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return;
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2007-07-09 21:17:58 +00:00
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hwif->cbl = cs5535_cable_detect(hwif->pci_dev);
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2005-11-09 22:58:16 +00:00
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}
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2007-10-19 22:32:34 +00:00
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static const struct ide_port_info cs5535_chipset __devinitdata = {
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2005-11-09 22:58:16 +00:00
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.name = "CS5535",
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.init_hwif = init_hwif_cs5535,
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2007-10-18 22:30:06 +00:00
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.host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE |
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2008-01-25 21:17:18 +00:00
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IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_BOOTABLE,
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2007-07-19 23:11:59 +00:00
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.pio_mask = ATA_PIO4,
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2007-10-18 22:30:07 +00:00
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA4,
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2005-11-09 22:58:16 +00:00
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};
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static int __devinit cs5535_init_one(struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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return ide_setup_pci_device(dev, &cs5535_chipset);
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}
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2007-10-16 20:29:56 +00:00
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static const struct pci_device_id cs5535_pci_tbl[] = {
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{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_CS5535_IDE), 0 },
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2005-11-09 22:58:16 +00:00
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{ 0, },
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};
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MODULE_DEVICE_TABLE(pci, cs5535_pci_tbl);
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static struct pci_driver driver = {
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.name = "CS5535_IDE",
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.id_table = cs5535_pci_tbl,
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.probe = cs5535_init_one,
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};
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static int __init cs5535_ide_init(void)
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{
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return ide_pci_register_driver(&driver);
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}
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module_init(cs5535_ide_init);
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MODULE_AUTHOR("AMD");
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MODULE_DESCRIPTION("PCI driver module for AMD/NS CS5535 IDE");
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MODULE_LICENSE("GPL");
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