diff options
Diffstat (limited to 'sound/oss/sh_dac_audio.c')
| -rw-r--r-- | sound/oss/sh_dac_audio.c | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c index 7b168d85f4a..83ff8a71f71 100644 --- a/sound/oss/sh_dac_audio.c +++ b/sound/oss/sh_dac_audio.c @@ -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> @@ -6,18 +17,17 @@ #include <linux/fs.h> #include <linux/sound.h> #include <linux/soundcard.h> +#include <linux/interrupt.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/irq.h> #include <asm/delay.h> -#include <linux/interrupt.h> - +#include <asm/clock.h> #include <asm/cpu/dac.h> - -#ifdef MACH_HP600 +#include <asm/cpu/timer.h> +#include <asm/machvec.h> #include <asm/hp6xx/hp6xx.h> -#include <asm/hd64461/hd64461.h> -#endif +#include <asm/hd64461.h> #define MODNAME "sh_dac_audio" @@ -26,11 +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; @@ -71,34 +76,37 @@ static void dac_audio_sync(void) static void dac_audio_start(void) { -#ifdef MACH_HP600 - u16 v; - v = inw(HD64461_GPADR); - v &= ~HD64461_GPADR_SPEAKER; - outw(v, HD64461_GPADR); -#endif + if (mach_is_hp6xx()) { + u16 v = inw(HD64461_GPADR); + v &= ~HD64461_GPADR_SPEAKER; + outw(v, HD64461_GPADR); + } + sh_dac_enable(CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL); ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); } static void dac_audio_stop(void) { -#ifdef MACH_HP600 - u16 v; -#endif dac_audio_stop_timer(); -#ifdef MACH_HP600 - v = inw(HD64461_GPADR); - v |= HD64461_GPADR_SPEAKER; - outw(v, HD64461_GPADR); -#endif + + if (mach_is_hp6xx()) { + u16 v = inw(HD64461_GPADR); + v |= HD64461_GPADR_SPEAKER; + 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); } |