renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-11-18 23:54:26 +08:00
Code

sound: SH DAC audio driver updates.

Browse Source 
Update the SH DAC audio driver for the clock framework.

Signed-off-by: Andriy Skulysh <askulysh@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Andriy Skulysh 2006-09-27 13:48:32 +09:00 committed by Paul Mundt
parent 048839dc54
commit 7e27b9b720
1 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
sound/oss/sh_dac_audio.c
View File

@ -1,3 +1,14 @@
/*
* 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);
}