Commit 607da7f8 authored by Rene Herman's avatar Rene Herman Committed by Jaroslav Kysela
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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: default avatarTakashi Iwai <tiwai@suse.de>
parent ea265c0a

sound/pci/es1968.c

+4 −7
Original line number Diff line number Diff line
@@ -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 */