Commit 7e27b9b7 authored by Andriy Skulysh's avatar Andriy Skulysh Committed by Paul Mundt
Browse files

sound: SH DAC audio driver updates. 



Update the SH DAC audio driver for the clock framework.

Signed-off-by: default avatarAndriy Skulysh <askulysh@gmail.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 048839dc

sound/oss/sh_dac_audio.c

+19 −7
Original line number Diff line number Diff line 
/*

 * sound/oss/sh_dac_audio.c

 *

 * SH DAC based sound :(

 *

 *  Copyright (C) 2004,2005  Andriy Skulysh

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 */

#include <linux/module.h>

#include <linux/init.h>

#include <linux/sched.h>
@@ -11,10 +22,12 @@ 
#include <asm/uaccess.h>

#include <asm/irq.h>

#include <asm/delay.h>

#include <asm/clock.h>

#include <asm/cpu/dac.h>

#include <asm/cpu/timer.h>

#include <asm/machvec.h>

#include <asm/hp6xx/hp6xx.h>

#include <asm/hd64461/hd64461.h>

#include <asm/hd64461.h>



#define MODNAME "sh_dac_audio"
@@ -23,11 +36,6 @@ 
#define TMU1_TCR_INIT	0x0020	/* Clock/4, rising edge; interrupt on */

#define TMU1_TSTR_INIT  0x02	/* Bit to turn on TMU1 */



#define TMU_TSTR	0xfffffe92

#define TMU1_TCOR	0xfffffea0

#define TMU1_TCNT	0xfffffea4

#define TMU1_TCR	0xfffffea8



#define BUFFER_SIZE 48000



static int rate;
@@ -87,14 +95,18 @@ static void dac_audio_stop(void) 
		outw(v, HD64461_GPADR);

	}



 	sh_dac_output(0, CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL);

	sh_dac_disable(CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL);

}



static void dac_audio_set_rate(void)

{

	unsigned long interval;

 	struct clk *clk;



	interval = (current_cpu_data.module_clock / 4) / rate;

 	clk = clk_get("module_clk");

 	interval = (clk_get_rate(clk) / 4) / rate;

 	clk_put(clk);

	ctrl_outl(interval, TMU1_TCOR);

	ctrl_outl(interval, TMU1_TCNT);

}