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[ALSA] es1968 - Fix conflict with ISA boards 

Modules: ES1968 driver

Fix disablement of TDMA and legacy support to prevent confliction of
resources with ISA boards.  Confirmed with Terratec DMX and CS4236.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rene Herman 2005-12-14 11:57:27 +01:00 committed by Jaroslav Kysela
parent ea265c0a43
commit 607da7f834
1 changed files with 4 additions and 7 deletions
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11
sound/pci/es1968.c
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@ -176,7 +176,7 @@ MODULE_PARM_DESC(joystick, "Enable joystick.");
/* Values for the ESM_LEGACY_AUDIO_CONTROL */
#define ESS_ENABLE_AUDIO 0x8000
#define ESS_DISABLE_AUDIO 0x8000
#define ESS_ENABLE_SERIAL_IRQ 0x4000
#define IO_ADRESS_ALIAS 0x0020
#define MPU401_IRQ_ENABLE 0x0010
@ -195,7 +195,7 @@ MODULE_PARM_DESC(joystick, "Enable joystick.");
#define DMA_TDMA 0x0100
#define DMA_PCPCI 0x0200
#define POST_WRITE 0x0080
#define ISA_TIMING 0x0040
#define PCI_TIMING 0x0040
#define SWAP_LR 0x0020
#define SUBTR_DECODE 0x0002
@ -2193,14 +2193,11 @@ static void snd_es1968_chip_init(struct es1968 *chip)
/* Config Reg A */
pci_read_config_word(pci, ESM_CONFIG_A, &w);
/* Use TDMA for now. TDMA works on all boards, so while its
* not the most efficient its the simplest. */
w &= ~DMA_CLEAR; /* Clear DMA bits */
w |= DMA_TDMA; /* TDMA on */
w &= ~(PIC_SNOOP1 | PIC_SNOOP2); /* Clear Pic Snoop Mode Bits */
w &= ~SAFEGUARD; /* Safeguard off */
w |= POST_WRITE; /* Posted write */
w |= ISA_TIMING; /* ISA timing on */
w |= PCI_TIMING; /* PCI timing on */
/* XXX huh? claims to be reserved.. */
w &= ~SWAP_LR; /* swap left/right
seems to only have effect on SB
@ -2241,7 +2238,7 @@ static void snd_es1968_chip_init(struct es1968 *chip)
pci_read_config_word(pci, ESM_LEGACY_AUDIO_CONTROL, &w);
w &= ~ESS_ENABLE_AUDIO; /* Disable Legacy Audio */
w |= ESS_DISABLE_AUDIO; /* Disable Legacy Audio */
w &= ~ESS_ENABLE_SERIAL_IRQ; /* Disable SIRQ */
w &= ~(0x1f); /* disable mpu irq/io, game port, fm, SB */