From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] qd65xx: use IDE_HFLAG_SINGLE host flag
Date: Sat, 23 Feb 2008 20:12:40 +0100 [thread overview]
Message-ID: <200802232012.40791.bzolnier@gmail.com> (raw)
* Set IDE_HFLAG_SINGLE host flag in qd_probe() for QD6500 and QD6580
with the second port disabled.
* Check for IDE_HFLAG_SINGLE in qd6580_port_init_devs() instead of
using cached value of QD6580 Control register.
* Don't cache QD6580 Control register value in hwif->config_data
(bits 8-15) and remove no longer needed QD_CONTROL() macro.
* Cache QD65xx base address in hwif->config_data (bits 8-15)
instead of hwif->select_data.
* Set hwif->config_data in qd_probe() and remove qd_setup() helper.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/legacy/qd65xx.c | 35 +++++++++++++++--------------------
drivers/ide/legacy/qd65xx.h | 1 -
2 files changed, 15 insertions(+), 21 deletions(-)
Index: b/drivers/ide/legacy/qd65xx.c
===================================================================
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -204,10 +204,11 @@ static void qd6500_set_pio_mode(ide_driv
static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- int base = HWIF(drive)->select_data;
+ ide_hwif_t *hwif = drive->hwif;
unsigned int cycle_time;
int active_time = 175;
int recovery_time = 415; /* worst case values from the dos driver */
+ u8 base = (hwif->config_data & 0xff00) >> 8;
if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
cycle_time = ide_pio_cycle_time(drive, pio);
@@ -278,21 +279,10 @@ static int __init qd_testreg(int port)
return (readreg != QD_TESTVAL);
}
-/*
- * qd_setup:
- *
- * called to setup an ata channel : adjusts attributes & links for tuning
- */
-
-static void __init qd_setup(ide_hwif_t *hwif, int base, int config)
-{
- hwif->select_data = base;
- hwif->config_data = config;
-}
-
static void __init qd6500_port_init_devs(ide_hwif_t *hwif)
{
- u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+ u8 base = (hwif->config_data & 0xff00) >> 8;
+ u8 config = QD_CONFIG(hwif);
hwif->drives[0].drive_data = QD6500_DEF_DATA;
hwif->drives[1].drive_data = QD6500_DEF_DATA;
@@ -301,9 +291,10 @@ static void __init qd6500_port_init_devs
static void __init qd6580_port_init_devs(ide_hwif_t *hwif)
{
u16 t1, t2;
- u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+ u8 base = (hwif->config_data & 0xff00) >> 8;
+ u8 config = QD_CONFIG(hwif);
- if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
+ if (hwif->host_flags & IDE_HFLAG_SINGLE) {
t1 = QD6580_DEF_DATA;
t2 = QD6580_DEF_DATA2;
} else
@@ -370,13 +361,15 @@ static int __init qd_probe(int base)
printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n",
config, QD_ID3);
+ d.host_flags |= IDE_HFLAG_SINGLE;
+
hwif = ide_find_port_slot(&d);
if (hwif == NULL)
return -ENOENT;
ide_init_port_hw(hwif, &hw[unit]);
- qd_setup(hwif, base, config);
+ hwif->config_data = (base << 8) | config;
hwif->port_init_devs = qd6500_port_init_devs;
hwif->set_pio_mode = qd6500_set_pio_mode;
@@ -412,13 +405,15 @@ static int __init qd_probe(int base)
printk(KERN_INFO "qd6580: single IDE board\n");
+ d.host_flags |= IDE_HFLAG_SINGLE;
+
hwif = ide_find_port_slot(&d);
if (hwif == NULL)
return -ENOENT;
ide_init_port_hw(hwif, &hw[unit]);
- qd_setup(hwif, base, config | (control << 8));
+ hwif->config_data = (base << 8) | config;
hwif->port_init_devs = qd6580_port_init_devs;
hwif->set_pio_mode = qd6580_set_pio_mode;
@@ -438,7 +433,7 @@ static int __init qd_probe(int base)
hwif = ide_find_port();
if (hwif) {
ide_init_port_hw(hwif, &hw[0]);
- qd_setup(hwif, base, config | (control << 8));
+ hwif->config_data = (base << 8) | config;
hwif->port_init_devs = qd6580_port_init_devs;
hwif->set_pio_mode = qd6580_set_pio_mode;
hwif->selectproc = qd65xx_select;
@@ -448,7 +443,7 @@ static int __init qd_probe(int base)
mate = ide_find_port();
if (mate) {
ide_init_port_hw(mate, &hw[1]);
- qd_setup(mate, base, config | (control << 8));
+ mate->config_data = (base << 8) | config;
mate->port_init_devs = qd6580_port_init_devs;
mate->set_pio_mode = qd6580_set_pio_mode;
hwif->selectproc = qd65xx_select;
Index: b/drivers/ide/legacy/qd65xx.h
===================================================================
--- a/drivers/ide/legacy/qd65xx.h
+++ b/drivers/ide/legacy/qd65xx.h
@@ -30,7 +30,6 @@
#define QD_ID3 ((config & QD_CONFIG_ID3)!=0)
#define QD_CONFIG(hwif) ((hwif)->config_data & 0x00ff)
-#define QD_CONTROL(hwif) (((hwif)->config_data & 0xff00) >> 8)
#define QD_TIMING(drive) (byte)(((drive)->drive_data) & 0x00ff)
#define QD_TIMREG(drive) (byte)((((drive)->drive_data) & 0xff00) >> 8)
reply other threads:[~2008-02-23 18:58 UTC|newest]
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