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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-06-19 20:09:00 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-06-19 20:09:00 +0000
commit900fe1bcc14ba247a2462b729e63af3b8ecad018 (patch)
tree241a45294cb5599341cb0cffce8e7fb93f70ecdf /target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch
parent811d545260375918d0f0d9d960832d7ec1712b45 (diff)
[ep93xx] remove pre 2.6.39 patches and config
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27229 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch')
-rw-r--r--target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch3808
1 files changed, 0 insertions, 3808 deletions
diff --git a/target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch b/target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch
deleted file mode 100644
index 36f316be1..000000000
--- a/target/linux/ep93xx/patches-2.6.30/010-ep93xx-snd-ac97.patch
+++ /dev/null
@@ -1,3808 +0,0 @@
---- a/arch/arm/mach-ep93xx/include/mach/hardware.h
-+++ b/arch/arm/mach-ep93xx/include/mach/hardware.h
-@@ -5,6 +5,7 @@
- #define __ASM_ARCH_HARDWARE_H
-
- #include "ep93xx-regs.h"
-+#include "regs_ac97.h"
-
- #define pcibios_assign_all_busses() 0
- #include "regs_raster.h"
---- /dev/null
-+++ b/arch/arm/mach-ep93xx/include/mach/regs_ac97.h
-@@ -0,0 +1,180 @@
-+/*=============================================================================
-+ * FILE: regs_ac97.h
-+ *
-+ * DESCRIPTION: Ac'97 Register Definition
-+ *
-+ * Copyright Cirrus Logic, 2001-2003
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *=============================================================================
-+ */
-+#ifndef _REGS_AC97_H_
-+#define _REGS_AC97_H_
-+
-+//-----------------------------------------------------------------------------
-+// Bit definitionses
-+//-----------------------------------------------------------------------------
-+#define AC97ISR_RIS 8
-+#define AC97ISR_TIS 4
-+#define AC97ISR_RTIS 2
-+#define AC97ISR_TCIS 1
-+
-+#define AC97RGIS_SLOT1TXCOMPLETE 0x01
-+#define AC97RGIS_SLOT2RXVALID 0x02
-+#define AC97RGIS_GPIOTXCOMPLETE 0x04
-+#define AC97RGIS_GPIOINTRX 0x08
-+#define AC97RGIS_RWIS 0x10
-+#define AC97RGIS_CODECREADY 0x20
-+#define AC97RGIS_SLOT2TXCOMPLETE 0x40
-+
-+#define AC97SR_RXFE 0x0001
-+#define AC97SR_TXFE 0x0002
-+#define AC97SR_RXFF 0x0004
-+#define AC97SR_TXFF 0x0008
-+#define AC97SR_TXBUSY 0x0010
-+#define AC97SR_RXOE 0x0020
-+#define AC97SR_TXUE 0x0040
-+
-+#define AC97GSR_IFE 0x1
-+#define AC97GSR_LOOP 0x2
-+#define AC97GSR_OVERRIDECODECREADY 0x4
-+
-+#define AC97RESET_TIMEDRESET 0x1
-+#define AC97RESET_FORCEDRESET 0x2
-+#define AC97RESET_EFORCER 0x4
-+
-+#define AC97RXCR_REN 0x1
-+
-+#define AC97TXCR_TEN 0x1
-+
-+
-+//****************************************************************************
-+//
-+// The Ac97 Codec registers, accessable through the Ac-link.
-+// These are not controller registers and are not memory mapped.
-+// Includes registers specific to CS4202 (Beavis).
-+//
-+//****************************************************************************
-+#define AC97_REG_OFFSET_MASK 0x0000007E
-+
-+#define AC97_00_RESET 0x00000000
-+#define AC97_02_MASTER_VOL 0x00000002
-+#define AC97_04_HEADPHONE_VOL 0x00000004
-+#define AC97_06_MONO_VOL 0x00000006
-+#define AC97_08_TONE 0x00000008
-+#define AC97_0A_PC_BEEP_VOL 0x0000000A
-+#define AC97_0C_PHONE_VOL 0x0000000C
-+#define AC97_0E_MIC_VOL 0x0000000E
-+#define AC97_10_LINE_IN_VOL 0x00000010
-+#define AC97_12_CD_VOL 0x00000012
-+#define AC97_14_VIDEO_VOL 0x00000014
-+#define AC97_16_AUX_VOL 0x00000016
-+#define AC97_18_PCM_OUT_VOL 0x00000018
-+#define AC97_1A_RECORD_SELECT 0x0000001A
-+#define AC97_1C_RECORD_GAIN 0x0000001C
-+#define AC97_1E_RESERVED_1E 0x0000001E
-+#define AC97_20_GENERAL_PURPOSE 0x00000020
-+#define AC97_22_3D_CONTROL 0x00000022
-+#define AC97_24_MODEM_RATE 0x00000024
-+#define AC97_26_POWERDOWN 0x00000026
-+#define AC97_28_EXT_AUDIO_ID 0x00000028
-+#define AC97_2A_EXT_AUDIO_POWER 0x0000002A
-+#define AC97_2C_PCM_FRONT_DAC_RATE 0x0000002C
-+#define AC97_2E_PCM_SURR_DAC_RATE 0x0000002E
-+#define AC97_30_PCM_LFE_DAC_RATE 0x00000030
-+#define AC97_32_PCM_LR_ADC_RATE 0x00000032
-+#define AC97_34_MIC_ADC_RATE 0x00000034
-+#define AC97_36_6CH_VOL_C_LFE 0x00000036
-+#define AC97_38_6CH_VOL_SURROUND 0x00000038
-+#define AC97_3A_SPDIF_CONTROL 0x0000003A
-+#define AC97_3C_EXT_MODEM_ID 0x0000003C
-+#define AC97_3E_EXT_MODEM_POWER 0x0000003E
-+#define AC97_40_LINE1_CODEC_RATE 0x00000040
-+#define AC97_42_LINE2_CODEC_RATE 0x00000042
-+#define AC97_44_HANDSET_CODEC_RATE 0x00000044
-+#define AC97_46_LINE1_CODEC_LEVEL 0x00000046
-+#define AC97_48_LINE2_CODEC_LEVEL 0x00000048
-+#define AC97_4A_HANDSET_CODEC_LEVEL 0x0000004A
-+#define AC97_4C_GPIO_PIN_CONFIG 0x0000004C
-+#define AC97_4E_GPIO_PIN_TYPE 0x0000004E
-+#define AC97_50_GPIO_PIN_STICKY 0x00000050
-+#define AC97_52_GPIO_PIN_WAKEUP 0x00000052
-+#define AC97_54_GPIO_PIN_STATUS 0x00000054
-+#define AC97_56_RESERVED 0x00000056
-+#define AC97_58_RESERVED 0x00000058
-+#define AC97_5A_CRYSTAL_REV_N_FAB_ID 0x0000005A
-+#define AC97_5C_TEST_AND_MISC_CTRL 0x0000005C
-+#define AC97_5E_AC_MODE 0x0000005E
-+#define AC97_60_MISC_CRYSTAL_CONTROL 0x00000060
-+#define AC97_62_VENDOR_RESERVED 0x00000062
-+#define AC97_64_DAC_SRC_PHASE_INCR 0x00000064
-+#define AC97_66_ADC_SRC_PHASE_INCR 0x00000066
-+#define AC97_68_RESERVED_68 0x00000068
-+#define AC97_6A_SERIAL_PORT_CONTROL 0x0000006A
-+#define AC97_6C_VENDOR_RESERVED 0x0000006C
-+#define AC97_6E_VENDOR_RESERVED 0x0000006E
-+#define AC97_70_BDI_CONFIG 0x00000070
-+#define AC97_72_BDI_WAKEUP 0x00000072
-+#define AC97_74_VENDOR_RESERVED 0x00000074
-+#define AC97_76_CAL_ADDRESS 0x00000076
-+#define AC97_78_CAL_DATA 0x00000078
-+#define AC97_7A_VENDOR_RESERVED 0x0000007A
-+#define AC97_7C_VENDOR_ID1 0x0000007C
-+#define AC97_7E_VENDOR_ID2 0x0000007E
-+
-+
-+#ifndef __ASSEMBLY__
-+
-+//
-+// enum type for use with reg AC97_RECORD_SELECT
-+//
-+typedef enum{
-+ RECORD_MIC = 0x0000,
-+ RECORD_CD = 0x0101,
-+ RECORD_VIDEO_IN = 0x0202,
-+ RECORD_AUX_IN = 0x0303,
-+ RECORD_LINE_IN = 0x0404,
-+ RECORD_STEREO_MIX = 0x0505,
-+ RECORD_MONO_MIX = 0x0606,
-+ RECORD_PHONE_IN = 0x0707
-+} Ac97RecordSources;
-+
-+#endif /* __ASSEMBLY__ */
-+
-+//
-+// Sample rates supported directly in AC97_PCM_FRONT_DAC_RATE and
-+// AC97_PCM_LR_ADC_RATE.
-+//
-+#define Ac97_Fs_8000 0x1f40
-+#define Ac97_Fs_11025 0x2b11
-+#define Ac97_Fs_16000 0x3e80
-+#define Ac97_Fs_22050 0x5622
-+#define Ac97_Fs_32000 0x7d00
-+#define Ac97_Fs_44100 0xac44
-+#define Ac97_Fs_48000 0xbb80
-+
-+//
-+// RSIZE and TSIZE in AC97RXCR and AC97TXCR
-+//
-+#define Ac97_SIZE_20 2
-+#define Ac97_SIZE_18 1
-+#define Ac97_SIZE_16 0
-+#define Ac97_SIZE_12 3
-+
-+//=============================================================================
-+//=============================================================================
-+
-+
-+#endif /* _REGS_AC97_H_ */
---- a/sound/arm/Kconfig
-+++ b/sound/arm/Kconfig
-@@ -11,6 +11,23 @@ menuconfig SND_ARM
-
- if SND_ARM
-
-+config SND_EP93XX_AC97
-+ tristate "AC97 driver for the Cirrus EP93xx chip"
-+ depends on ARCH_EP93XX && SND
-+ select SND_EP93XX_PCM
-+ select SND_AC97_CODEC
-+ help
-+ Say Y here to use AC'97 audio with a Cirrus Logic EP93xx chip.
-+
-+ To compile this driver as a module, choose M here: the module
-+ will be called snd-ep93xx-ac97.
-+
-+config SND_EP93XX_PCM
-+ tristate
-+ select SND_PCM
-+ help
-+ Generic PCM module for EP93xx
-+
- config SND_ARMAACI
- tristate "ARM PrimeCell PL041 AC Link support"
- depends on ARM_AMBA
---- a/sound/arm/Makefile
-+++ b/sound/arm/Makefile
-@@ -5,6 +5,9 @@
- obj-$(CONFIG_SND_ARMAACI) += snd-aaci.o
- snd-aaci-objs := aaci.o devdma.o
-
-+obj-$(CONFIG_SND_EP93XX_AC97) += snd-ep93xx-ac97.o
-+snd-ep93xx-ac97-objs := ep93xx-ac97.o
-+
- obj-$(CONFIG_SND_PXA2XX_PCM) += snd-pxa2xx-pcm.o
- snd-pxa2xx-pcm-objs := pxa2xx-pcm.o
-
---- /dev/null
-+++ b/sound/arm/ep93xx-ac97.c
-@@ -0,0 +1,3482 @@
-+/*
-+ * linux/sound/arm/ep93xx-ac97.c -- ALSA PCM interface for the edb93xx ac97 audio
-+ */
-+
-+#include <linux/autoconf.h>
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/platform_device.h>
-+#include <linux/delay.h>
-+#include <linux/soundcard.h>
-+
-+#include <sound/driver.h>
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/pcm_params.h>
-+#include <sound/control.h>
-+#include <sound/initval.h>
-+#include <sound/ac97_codec.h>
-+
-+#include <asm/irq.h>
-+#include <asm/semaphore.h>
-+#include <asm/hardware.h>
-+#include <asm/io.h>
-+#include <asm/arch/dma.h>
-+#include "ep93xx-ac97.h"
-+
-+#define DRIVER_VERSION "01/05/2009"
-+#define DRIVER_DESC "EP93xx AC97 Audio driver"
-+static int ac_link_enabled = 0;
-+static int codec_supported_mixers;
-+
-+//#define DEBUG 1
-+#ifdef DEBUG
-+#define DPRINTK( fmt, arg... ) printk( fmt, ##arg )
-+#else
-+#define DPRINTK( fmt, arg... )
-+#endif
-+
-+#define WL16 0
-+#define WL24 1
-+
-+#define AUDIO_NAME "ep93xx-ac97"
-+#define AUDIO_SAMPLE_RATE_DEFAULT 44100
-+#define AUDIO_DEFAULT_VOLUME 0
-+#define AUDIO_MAX_VOLUME 181
-+#define AUDIO_DEFAULT_DMACHANNELS 3
-+#define PLAYBACK_DEFAULT_DMACHANNELS 3
-+#define CAPTURE_DEFAULT_DMACHANNELS 3
-+
-+#define CHANNEL_FRONT (1<<0)
-+#define CHANNEL_REAR (1<<1)
-+#define CHANNEL_CENTER_LFE (1<<2)
-+
-+static void snd_ep93xx_dma_tx_callback( ep93xx_dma_int_t DMAInt,
-+ ep93xx_dma_dev_t device,
-+ unsigned int user_data);
-+static void snd_ep93xx_dma_rx_callback( ep93xx_dma_int_t DMAInt,
-+ ep93xx_dma_dev_t device,
-+ unsigned int user_data);
-+
-+static const struct snd_pcm_hardware ep93xx_ac97_pcm_hardware = {
-+
-+
-+ .info = ( SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE ),
-+ .formats = ( SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
-+ SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE |
-+ SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE |
-+ SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE |
-+ SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE ),
-+ .rates = ( SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |
-+ SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |
-+ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
-+ SNDRV_PCM_RATE_48000 ),
-+ .rate_min = 8000,
-+ .rate_max = 48000,
-+ .channels_min = 1,/*2,*/
-+ .channels_max = 2,
-+
-+ .period_bytes_min = 1 * 1024,
-+ .period_bytes_max = 32 * 1024,
-+ .periods_min = 1,
-+ .periods_max = 32,
-+ .buffer_bytes_max = 32 * 1024,
-+ .fifo_size = 0,
-+};
-+
-+static audio_stream_t output_stream;
-+static audio_stream_t input_stream;
-+
-+static audio_state_t audio_state =
-+{
-+ .output_stream =&output_stream,
-+ .output_dma[0] =DMATx_AAC1,
-+ .output_id[0] ="Ac97 out",
-+
-+ .input_stream =&input_stream,
-+ .input_dma[0] =DMARx_AAC1,
-+ .input_id[0] ="Ac97 in",
-+
-+ .sem = __SEMAPHORE_INIT(audio_state.sem,1),
-+ .codec_set_by_playback = 0,
-+ .codec_set_by_capture = 0,
-+ .DAC_bit_width =16,
-+ .bCompactMode =0,
-+};
-+
-+
-+
-+/*
-+ * peek
-+ *
-+ * Reads an AC97 codec register. Returns -1 if there was an error.
-+ */
-+static int peek(unsigned int uiAddress)
-+{
-+ unsigned int uiAC97RGIS;
-+
-+ if( !ac_link_enabled )
-+ {
-+ printk("ep93xx ac97 peek: attempt to peek before enabling ac-link.\n");
-+ return -1;
-+ }
-+
-+ /*
-+ * Check to make sure that the address is aligned on a word boundary
-+ * and is 7E or less.
-+ */
-+ if( ((uiAddress & 0x1)!=0) || (uiAddress > 0x007e))
-+ {
-+ return -1;
-+ }
-+
-+ /*
-+ * How it is supposed to work is:
-+ * - The ac97 controller sends out a read addr in slot 1.
-+ * - In the next frame, the codec will echo that address back in slot 1
-+ * and send the data in slot 2. SLOT2RXVALID will be set to 1.
-+ *
-+ * Read until SLOT2RXVALID goes to 1. Reading the data in AC97S2DATA
-+ * clears SLOT2RXVALID.
-+ */
-+
-+ /*
-+ * First, delay one frame in case of back to back peeks/pokes.
-+ */
-+ mdelay( 1 );
-+
-+ /*
-+ * Write the address to AC97S1DATA, delay 1 frame, read the flags.
-+ */
-+ outl( uiAddress, AC97S1DATA);
-+ udelay( 21 * 4 );
-+ uiAC97RGIS = inl( AC97RGIS );
-+
-+ /*
-+ * Return error if we timed out.
-+ */
-+ if( ((uiAC97RGIS & AC97RGIS_SLOT1TXCOMPLETE) == 0 ) &&
-+ ((uiAC97RGIS & AC97RGIS_SLOT2RXVALID) == 0 ) )
-+ {
-+ printk( "ep93xx-ac97 - peek failed reading reg 0x%02x.\n", uiAddress );
-+ return -1;
-+ }
-+
-+ return ( inl(AC97S2DATA) & 0x000fffff);
-+}
-+
-+/*
-+ * poke
-+ *
-+ * Writes an AC97 codec Register. Return -1 if error.
-+ */
-+static int poke(unsigned int uiAddress, unsigned int uiValue)
-+{
-+ unsigned int uiAC97RGIS;
-+
-+ if( !ac_link_enabled )
-+ {
-+ printk("ep93xx ac97 poke: attempt to poke before enabling ac-link.\n");
-+ return -1;
-+ }
-+
-+ /*
-+ * Check to make sure that the address is align on a word boundary and
-+ * is 7E or less. And that the value is a 16 bit value.
-+ */
-+ if( ((uiAddress & 0x1)!=0) || (uiAddress > 0x007e))
-+ {
-+ printk("ep93xx ac97 poke: address error.\n");
-+ return -1;
-+ }
-+
-+ /*stop the audio loop from the input to the output directly*/
-+
-+ if((uiAddress==AC97_0E_MIC_VOL)||(uiAddress==AC97_10_LINE_IN_VOL))
-+ {
-+ uiValue = (uiValue | 0x8000);
-+
-+ }
-+
-+ /*
-+ * First, delay one frame in case of back to back peeks/pokes.
-+ */
-+ mdelay( 1 );
-+
-+ /*
-+ * Write the data to AC97S2DATA, then the address to AC97S1DATA.
-+ */
-+ outl( uiValue, AC97S2DATA );
-+ outl( uiAddress, AC97S1DATA );
-+
-+ /*
-+ * Wait for the tx to complete, get status.
-+ */
-+ udelay( 30 );/*21*/
-+ uiAC97RGIS = inl(AC97RGIS);
-+
-+ /*
-+ * Return error if we timed out.
-+ */
-+ if( !(inl(AC97RGIS) & AC97RGIS_SLOT1TXCOMPLETE) )
-+ {
-+ printk( "ep93xx-ac97: poke failed writing reg 0x%02x value 0x%02x.\n", uiAddress, uiValue );
-+ return -1;
-+ }
-+
-+ return 0;
-+}
-+
-+
-+/*
-+ * When we get to the multichannel case the pre-fill and enable code
-+ * will go to the dma driver's start routine.
-+ */
-+static void ep93xx_audio_enable( int input_or_output_stream )
-+{
-+ unsigned int uiTemp;
-+
-+ DPRINTK("ep93xx_audio_enable :%x\n",input_or_output_stream);
-+
-+ /*
-+ * Enable the rx or tx channel depending on the value of
-+ * input_or_output_stream
-+ */
-+ if( input_or_output_stream )
-+ {
-+ uiTemp = inl(AC97TXCR1);
-+ outl( (uiTemp | AC97TXCR_TEN), AC97TXCR1 );
-+ }
-+ else
-+ {
-+ uiTemp = inl(AC97RXCR1);
-+ outl( (uiTemp | AC97RXCR_REN), AC97RXCR1 );
-+ }
-+
-+
-+ //DDEBUG("ep93xx_audio_enable - EXIT\n");
-+}
-+
-+static void ep93xx_audio_disable( int input_or_output_stream )
-+{
-+ unsigned int uiTemp;
-+
-+ DPRINTK("ep93xx_audio_disable\n");
-+
-+ /*
-+ * Disable the rx or tx channel depending on the value of
-+ * input_or_output_stream
-+ */
-+ if( input_or_output_stream )
-+ {
-+ uiTemp = inl(AC97TXCR1);
-+ outl( (uiTemp & ~AC97TXCR_TEN), AC97TXCR1 );
-+ }
-+ else
-+ {
-+ uiTemp = inl(AC97RXCR1);
-+ outl( (uiTemp & ~AC97RXCR_REN), AC97RXCR1 );
-+ }
-+
-+ //DDEBUG("ep93xx_audio_disable - EXIT\n");
-+}
-+
-+
-+
-+/*=======================================================================================*/
-+/*
-+ * ep93xx_setup_src
-+ *
-+ * Once the ac-link is up and all is good, we want to set the codec to a
-+ * usable mode.
-+ */
-+static void ep93xx_setup_src(void)
-+{
-+ int iTemp;
-+
-+ /*
-+ * Set the VRA bit to enable the SRC.
-+ */
-+ iTemp = peek( AC97_2A_EXT_AUDIO_POWER );
-+ poke( AC97_2A_EXT_AUDIO_POWER, (iTemp | 0x1) );
-+
-+ /*
-+ * Set the DSRC/ASRC bits to enable the variable rate SRC.
-+ */
-+ iTemp = peek( AC97_60_MISC_CRYSTAL_CONTROL );
-+ poke( AC97_60_MISC_CRYSTAL_CONTROL, (iTemp | 0x0300) );
-+}
-+
-+/*
-+ * ep93xx_set_samplerate
-+ *
-+ * lFrequency - Sample Rate in Hz
-+ * bCapture - 0 to set Tx sample rate; 1 to set Rx sample rate
-+ */
-+static void ep93xx_set_samplerate( long lSampleRate, int bCapture )
-+{
-+ unsigned short usDivider, usPhase;
-+
-+ DPRINTK( "ep93xx_set_samplerate - Fs = %d\n", (int)lSampleRate );
-+
-+ if( (lSampleRate < 7200) || (lSampleRate > 48000) )
-+ {
-+ printk( "ep93xx_set_samplerate - invalid Fs = %d\n",
-+ (int)lSampleRate );
-+ return;
-+ }
-+
-+ /*
-+ * Calculate divider and phase increment.
-+ *
-+ * divider = round( 0x1770000 / lSampleRate )
-+ * Note that usually rounding is done by adding 0.5 to a floating
-+ * value and then truncating. To do this without using floating
-+ * point, I multiply the fraction by two, do the division, then add one,
-+ * then divide the whole by 2 and then truncate.
-+ * Same effect, no floating point math.
-+ *
-+ * Ph incr = trunc( (0x1000000 / usDivider) + 1 )
-+ */
-+
-+ usDivider = (unsigned short)( ((2 * 0x1770000 / lSampleRate) + 1) / 2 );
-+
-+ usPhase = (0x1000000 / usDivider) + 1;
-+
-+ /*
-+ * Write them in the registers. Spec says divider must be
-+ * written after phase incr.
-+ */
-+ if(!bCapture)
-+ {
-+ poke( AC97_2C_PCM_FRONT_DAC_RATE, usDivider);
-+ poke( AC97_64_DAC_SRC_PHASE_INCR, usPhase);
-+ }
-+ else
-+ {
-+
-+ poke( AC97_32_PCM_LR_ADC_RATE, usDivider);
-+ poke( AC97_66_ADC_SRC_PHASE_INCR, usPhase);
-+ }
-+
-+ DPRINTK( "ep93xx_set_samplerate - phase = %d, divider = %d\n",
-+ (unsigned int)usPhase, (unsigned int)usDivider );
-+
-+ /*
-+ * We sorta should report the actual samplerate back to the calling
-+ * application. But some applications freak out if they don't get
-+ * exactly what they asked for. So we fudge and tell them what
-+ * they want to hear.
-+ */
-+ //audio_samplerate = lSampleRate;
-+
-+ DPRINTK( "ep93xx_set_samplerate - EXIT\n" );
-+}
-+
-+/*
-+ * ep93xx_set_hw_format
-+ *
-+ * Sets up whether the controller is expecting 20 bit data in 32 bit words
-+ * or 16 bit data compacted to have a stereo sample in each 32 bit word.
-+ */
-+static void ep93xx_set_hw_format( long format,long channel )
-+{
-+ int bCompactMode;
-+
-+ switch( format )
-+ {
-+ /*
-+ * Here's all the <=16 bit formats. We can squeeze both L and R
-+ * into one 32 bit sample so use compact mode.
-+ */
-+ case SNDRV_PCM_FORMAT_U8:
-+ case SNDRV_PCM_FORMAT_S8:
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ bCompactMode = 1;
-+ break;
-+
-+ /*
-+ * Add any other >16 bit formats here...
-+ */
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ default:
-+ bCompactMode = 0;
-+ break;
-+ }
-+
-+ if( bCompactMode )
-+ {
-+ DPRINTK("ep93xx_set_hw_format - Setting serial mode to 16 bit compact.\n");
-+
-+ /*
-+ * Turn on Compact Mode so we can fit each stereo sample into
-+ * a 32 bit word. Twice as efficent for DMA and FIFOs.
-+ */
-+ if(channel==2){
-+ outl( 0x00008018, AC97RXCR1 );
-+ outl( 0x00008018, AC97TXCR1 );
-+ }
-+ else {
-+ outl( 0x00008018, AC97RXCR1 );
-+ outl( 0x00008018, AC97TXCR1 );
-+ }
-+
-+
-+ audio_state.DAC_bit_width = 16;
-+ audio_state.bCompactMode = 1;
-+ }
-+ else
-+ {
-+ DPRINTK("ep93xx_set_hw_format - Setting serial mode to 20 bit non-CM.\n");
-+
-+ /*
-+ * Turn off Compact Mode so we can do > 16 bits per channel
-+ */
-+ if(channel==2){
-+ outl( 0x00004018, AC97RXCR1 );
-+ outl( 0x00004018, AC97TXCR1 );
-+ }
-+ else{
-+ outl( 0x00004018, AC97RXCR1 );
-+ outl( 0x00004018, AC97TXCR1 );
-+ }
-+
-+ audio_state.DAC_bit_width = 20;
-+ audio_state.bCompactMode = 0;
-+ }
-+
-+}
-+
-+/*
-+ * ep93xx_stop_loop
-+ *
-+ * Once the ac-link is up and all is good, we want to set the codec to a
-+ * usable mode.
-+ */
-+static void ep93xx_stop_loop(void)
-+{
-+ int iTemp;
-+
-+ /*
-+ * Set the AC97_0E_MIC_VOL MUTE bit to enable the LOOP.
-+ */
-+ iTemp = peek( AC97_0E_MIC_VOL );
-+ poke( AC97_0E_MIC_VOL, (iTemp | 0x8000) );
-+
-+ /*
-+ * Set the AC97_10_LINE_IN_VOL MUTE bit to enable the LOOP.
-+ */
-+ iTemp = peek( AC97_10_LINE_IN_VOL );
-+ poke( AC97_10_LINE_IN_VOL, (iTemp | 0x8000) );
-+}
-+
-+/*
-+ * ep93xx_init_ac97_controller
-+ *
-+ * This routine sets up the Ac'97 Controller.
-+ */
-+static void ep93xx_init_ac97_controller(void)
-+{
-+ unsigned int uiDEVCFG, uiTemp;
-+
-+ DPRINTK("ep93xx_init_ac97_controller - enter\n");
-+
-+ /*
-+ * Configure the multiplexed Ac'97 pins to be Ac97 not I2s.
-+ * Configure the EGPIO4 and EGPIO6 to be GPIOS, not to be
-+ * SDOUT's for the second and third I2S controller channels.
-+ */
-+ uiDEVCFG = inl(EP93XX_SYSCON_DEVICE_CONFIG);
-+
-+ uiDEVCFG &= ~(EP93XX_SYSCON_DEVCFG_CONFIG_I2SONAC97 |
-+ EP93XX_SYSCON_DEVCFG_A1onG |
-+ EP93XX_SYSCON_DEVCFG_A2onG);
-+
-+ SysconSetLocked(EP93XX_SYSCON_DEVICE_CONFIG, uiDEVCFG);
-+
-+ /*
-+ * Disable the AC97 controller internal loopback.
-+ * Disable Override codec ready.
-+ */
-+ outl( 0, AC97GCR );
-+
-+ /*
-+ * Enable the AC97 Link.
-+ */
-+ uiTemp = inl(AC97GCR);
-+ outl( (uiTemp | AC97GSR_IFE), AC97GCR );
-+
-+ /*
-+ * Set the TIMEDRESET bit. Will cause a > 1uSec reset of the ac-link.
-+ * This bit is self resetting.
-+ */
-+ outl( AC97RESET_TIMEDRESET, AC97RESET );
-+
-+ /*
-+ * Delay briefly, but let's not hog the processor.
-+ */
-+ set_current_state(TASK_INTERRUPTIBLE);
-+ schedule_timeout( 5 ); /* 50 mSec */
-+
-+ /*
-+ * Read the AC97 status register to see if we've seen a CODECREADY
-+ * signal from the AC97 codec.
-+ */
-+ if( !(inl(AC97RGIS) & AC97RGIS_CODECREADY))
-+ {
-+ printk( "ep93xx-ac97 - FAIL: CODECREADY still low!\n");
-+ return;
-+ }
-+
-+ /*
-+ * Delay for a second, not hogging the processor
-+ */
-+ set_current_state(TASK_INTERRUPTIBLE);
-+ schedule_timeout( HZ ); /* 1 Sec */
-+
-+ /*
-+ * Now the Ac-link is up. We can read and write codec registers.
-+ */
-+ ac_link_enabled = 1;
-+
-+ /*
-+ * Set up the rx and tx channels
-+ * Set the CM bit, data size=16 bits, enable tx slots 3 & 4.
-+ */
-+ ep93xx_set_hw_format( EP93XX_DEFAULT_FORMAT,EP93XX_DEFAULT_NUM_CHANNELS );
-+
-+ DPRINTK( "ep93xx-ac97 -- AC97RXCR1: %08x\n", inl(AC97RXCR1) );
-+ DPRINTK( "ep93xx-ac97 -- AC97TXCR1: %08x\n", inl(AC97TXCR1) );
-+
-+ DPRINTK("ep93xx_init_ac97_controller - EXIT - success\n");
-+
-+}
-+
-+#ifdef alsa_ac97_debug
-+static void ep93xx_dump_ac97_regs(void)
-+{
-+ int i;
-+ unsigned int reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
-+
-+ DPRINTK( "---------------------------------------------\n");
-+ DPRINTK( " : 0 2 4 6 8 A C E\n" );
-+
-+ for( i=0 ; i < 0x80 ; i+=0x10 )
-+ {
-+ reg0 = 0xffff & (unsigned int)peek( i );
-+ reg1 = 0xffff & (unsigned int)peek( i + 0x2 );
-+ reg2 = 0xffff & (unsigned int)peek( i + 0x4 );
-+ reg3 = 0xffff & (unsigned int)peek( i + 0x6 );
-+ reg4 = 0xffff & (unsigned int)peek( i + 0x8 );
-+ reg5 = 0xffff & (unsigned int)peek( i + 0xa );
-+ reg6 = 0xffff & (unsigned int)peek( i + 0xc );
-+ reg7 = 0xffff & (unsigned int)peek( i + 0xe );
-+
-+ DPRINTK( " %02x : %04x %04x %04x %04x %04x %04x %04x %04x\n",
-+ i, reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7);
-+ }
-+
-+ DPRINTK( "---------------------------------------------\n");
-+}
-+#endif
-+
-+
-+#define supported_mixer(FOO) \
-+ ( (FOO >= 0) && \
-+ (FOO < SOUND_MIXER_NRDEVICES) && \
-+ codec_supported_mixers & (1<<FOO) )
-+
-+/*
-+ * Available record sources.
-+ * LINE1 refers to AUX in.
-+ * IGAIN refers to input gain which means stereo mix.
-+ */
-+#define AC97_RECORD_MASK \
-+ (SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_IGAIN | SOUND_MASK_VIDEO |\
-+ SOUND_MASK_LINE1 | SOUND_MASK_LINE | SOUND_MASK_PHONEIN)
-+
-+#define AC97_STEREO_MASK \
-+ (SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_LINE | SOUND_MASK_CD | \
-+ SOUND_MASK_ALTPCM | SOUND_MASK_IGAIN | SOUND_MASK_LINE1 | SOUND_MASK_VIDEO)
-+
-+#define AC97_SUPPORTED_MASK \
-+ (AC97_STEREO_MASK | SOUND_MASK_BASS | SOUND_MASK_TREBLE | \
-+ SOUND_MASK_SPEAKER | SOUND_MASK_MIC | \
-+ SOUND_MASK_PHONEIN | SOUND_MASK_PHONEOUT)
-+
-+
-+
-+
-+/* this table has default mixer values for all OSS mixers. */
-+typedef struct {
-+ int mixer;
-+ unsigned int value;
-+} mixer_defaults_t;
-+
-+/*
-+ * Default mixer settings that are set up during boot.
-+ *
-+ * These values are 16 bit numbers in which the upper byte is right volume
-+ * and the lower byte is left volume or mono volume for mono controls.
-+ *
-+ * OSS Range for each of left and right volumes is 0 to 100 (0x00 to 0x64).
-+ *
-+ */
-+static mixer_defaults_t mixer_defaults[SOUND_MIXER_NRDEVICES] =
-+{
-+ /* Outputs */
-+ {SOUND_MIXER_VOLUME, 0x6464}, /* 0 dB */ /* -46.5dB to 0 dB */
-+ {SOUND_MIXER_ALTPCM, 0x6464}, /* 0 dB */ /* -46.5dB to 0 dB */
-+ {SOUND_MIXER_PHONEOUT, 0x6464}, /* 0 dB */ /* -46.5dB to 0 dB */
-+
-+ /* PCM playback gain */
-+ {SOUND_MIXER_PCM, 0x4b4b}, /* 0 dB */ /* -34.5dB to +12dB */
-+
-+ /* Record gain */
-+ {SOUND_MIXER_IGAIN, 0x0000}, /* 0 dB */ /* -34.5dB to +12dB */
-+
-+ /* Inputs */
-+ {SOUND_MIXER_MIC, 0x0000}, /* mute */ /* -34.5dB to +12dB */
-+ {SOUND_MIXER_LINE, 0x4b4b}, /* 0 dB */ /* -34.5dB to +12dB */
-+
-+ /* Inputs that are not connected. */
-+ {SOUND_MIXER_SPEAKER, 0x0000}, /* mute */ /* -45dB to 0dB */
-+ {SOUND_MIXER_PHONEIN, 0x0000}, /* mute */ /* -34.5dB to +12dB */
-+ {SOUND_MIXER_CD, 0x0000}, /* mute */ /* -34.5dB to +12dB */
-+ {SOUND_MIXER_VIDEO, 0x0000}, /* mute */ /* -34.5dB to +12dB */
-+ {SOUND_MIXER_LINE1, 0x0000}, /* mute */ /* -34.5dB to +12dB */
-+
-+ {-1,0} /* last entry */
-+};
-+
-+/* table to scale scale from OSS mixer value to AC97 mixer register value */
-+typedef struct {
-+ unsigned int offset;
-+ int scale;
-+} ac97_mixer_hw_t;
-+
-+static ac97_mixer_hw_t ac97_hw[SOUND_MIXER_NRDEVICES] =
-+{
-+ [SOUND_MIXER_VOLUME] = {AC97_02_MASTER_VOL, 64},
-+ [SOUND_MIXER_BASS] = {0, 0},
-+ [SOUND_MIXER_TREBLE] = {0, 0},
-+ [SOUND_MIXER_SYNTH] = {0, 0},
-+ [SOUND_MIXER_PCM] = {AC97_18_PCM_OUT_VOL, 32},
-+ [SOUND_MIXER_SPEAKER] = {AC97_0A_PC_BEEP_VOL, 32},
-+ [SOUND_MIXER_LINE] = {AC97_10_LINE_IN_VOL, 32},
-+ [SOUND_MIXER_MIC] = {AC97_0E_MIC_VOL, 32},
-+ [SOUND_MIXER_CD] = {AC97_12_CD_VOL, 32},
-+ [SOUND_MIXER_IMIX] = {0, 0},
-+ [SOUND_MIXER_ALTPCM] = {AC97_04_HEADPHONE_VOL, 64},
-+ [SOUND_MIXER_RECLEV] = {0, 0},
-+ [SOUND_MIXER_IGAIN] = {AC97_1C_RECORD_GAIN, 16},
-+ [SOUND_MIXER_OGAIN] = {0, 0},
-+ [SOUND_MIXER_LINE1] = {AC97_16_AUX_VOL, 32},
-+ [SOUND_MIXER_LINE2] = {0, 0},
-+ [SOUND_MIXER_LINE3] = {0, 0},
-+ [SOUND_MIXER_DIGITAL1] = {0, 0},
-+ [SOUND_MIXER_DIGITAL2] = {0, 0},
-+ [SOUND_MIXER_DIGITAL3] = {0, 0},
-+ [SOUND_MIXER_PHONEIN] = {AC97_0C_PHONE_VOL, 32},
-+ [SOUND_MIXER_PHONEOUT] = {AC97_06_MONO_VOL, 64},
-+ [SOUND_MIXER_VIDEO] = {AC97_14_VIDEO_VOL, 32},
-+ [SOUND_MIXER_RADIO] = {0, 0},
-+ [SOUND_MIXER_MONITOR] = {0, 0},
-+};
-+
-+
-+/* the following tables allow us to go from OSS <-> ac97 quickly. */
-+enum ac97_recsettings
-+{
-+ AC97_REC_MIC=0,
-+ AC97_REC_CD,
-+ AC97_REC_VIDEO,
-+ AC97_REC_AUX,
-+ AC97_REC_LINE,
-+ AC97_REC_STEREO, /* combination of all enabled outputs.. */
-+ AC97_REC_MONO, /*.. or the mono equivalent */
-+ AC97_REC_PHONE
-+};
-+
-+static const unsigned int ac97_rm2oss[] =
-+{
-+ [AC97_REC_MIC] = SOUND_MIXER_MIC,
-+ [AC97_REC_CD] = SOUND_MIXER_CD,
-+ [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO,
-+ [AC97_REC_AUX] = SOUND_MIXER_LINE1,
-+ [AC97_REC_LINE] = SOUND_MIXER_LINE,
-+ [AC97_REC_STEREO]= SOUND_MIXER_IGAIN,
-+ [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN
-+};
-+
-+/* indexed by bit position */
-+static const unsigned int ac97_oss_rm[] =
-+{
-+ [SOUND_MIXER_MIC] = AC97_REC_MIC,
-+ [SOUND_MIXER_CD] = AC97_REC_CD,
-+ [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO,
-+ [SOUND_MIXER_LINE1] = AC97_REC_AUX,
-+ [SOUND_MIXER_LINE] = AC97_REC_LINE,
-+ [SOUND_MIXER_IGAIN] = AC97_REC_STEREO,
-+ [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE
-+};
-+
-+
-+/*
-+ * ep93xx_write_mixer
-+ *
-+ */
-+static void ep93xx_write_mixer
-+(
-+ int oss_channel,
-+ unsigned int left,
-+ unsigned int right
-+)
-+{
-+ u16 val = 0;
-+ ac97_mixer_hw_t * mh = &ac97_hw[oss_channel];
-+
-+ DPRINTK("ac97_codec: wrote OSS %2d (ac97 0x%02x), "
-+ "l:%2d, r:%2d:",
-+ oss_channel, mh->offset, left, right);
-+
-+ if( !mh->scale )
-+ {
-+ printk( "ep93xx-ac97.c: ep93xx_write_mixer - not a valid OSS channel\n");
-+ return;
-+ }
-+
-+ if( AC97_STEREO_MASK & (1 << oss_channel) )
-+ {
-+ /* stereo mixers */
-+ if (left == 0 && right == 0)
-+ {
-+ val = 0x8000;
-+ }
-+ else
-+ {
-+ if (oss_channel == SOUND_MIXER_IGAIN)
-+ {
-+ right = (right * mh->scale) / 100;
-+ left = (left * mh->scale) / 100;
-+ if (right >= mh->scale)
-+ right = mh->scale-1;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ }
-+ else
-+ {
-+ right = ((100 - right) * mh->scale) / 100;
-+ left = ((100 - left) * mh->scale) / 100;
-+ if (right >= mh->scale)
-+ right = mh->scale-1;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ }
-+ val = (left << 8) | right;
-+ }
-+ }
-+ else if(left == 0)
-+ {
-+ val = 0x8000;
-+ }
-+ else if( (oss_channel == SOUND_MIXER_SPEAKER) ||
-+ (oss_channel == SOUND_MIXER_PHONEIN) ||
-+ (oss_channel == SOUND_MIXER_PHONEOUT) )
-+ {
-+ left = ((100 - left) * mh->scale) / 100;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ val = left;
-+ }
-+ else if (oss_channel == SOUND_MIXER_MIC)
-+ {
-+ val = peek( mh->offset) & ~0x801f;
-+ left = ((100 - left) * mh->scale) / 100;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ val |= left;
-+ }
-+ /*
-+ * For bass and treble, the low bit is optional. Masking it
-+ * lets us avoid the 0xf 'bypass'.
-+ * Do a read, modify, write as we have two contols in one reg.
-+ */
-+ else if (oss_channel == SOUND_MIXER_BASS)
-+ {
-+ val = peek( mh->offset) & ~0x0f00;
-+ left = ((100 - left) * mh->scale) / 100;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ val |= (left << 8) & 0x0e00;
-+ }
-+ else if (oss_channel == SOUND_MIXER_TREBLE)
-+ {
-+ val = peek( mh->offset) & ~0x000f;
-+ left = ((100 - left) * mh->scale) / 100;
-+ if (left >= mh->scale)
-+ left = mh->scale-1;
-+ val |= left & 0x000e;
-+ }
-+
-+ DPRINTK(" 0x%04x", val);
-+
-+ poke( mh->offset, val );
-+
-+#ifdef alsa_ac97_debug
-+ val = peek( mh->offset );
-+ DEBUG(" -> 0x%04x\n", val);
-+#endif
-+
-+}
-+
-+/* a thin wrapper for write_mixer */
-+static void ep93xx_set_mixer
-+(
-+ unsigned int oss_mixer,
-+ unsigned int val
-+)
-+{
-+ unsigned int left,right;
-+
-+ /* cleanse input a little */
-+ right = ((val >> 8) & 0xff) ;
-+ left = (val & 0xff) ;
-+
-+ if (right > 100) right = 100;
-+ if (left > 100) left = 100;
-+
-+ /*mixer_state[oss_mixer] = (right << 8) | left;*/
-+ ep93xx_write_mixer( oss_mixer, left, right);
-+}
-+
-+static void ep93xx_init_mixer(void)
-+{
-+ u16 cap;
-+ int i;
-+
-+ /* mixer masks */
-+ codec_supported_mixers = AC97_SUPPORTED_MASK;
-+
-+ cap = peek( AC97_00_RESET );
-+ if( !(cap & 0x04) )
-+ {
-+ codec_supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE);
-+ }
-+ if( !(cap & 0x10) )
-+ {
-+ codec_supported_mixers &= ~SOUND_MASK_ALTPCM;
-+ }
-+
-+ /*
-+ * Detect bit resolution of output volume controls by writing to the
-+ * 6th bit (not unmuting yet)
-+ */
-+ poke( AC97_02_MASTER_VOL, 0xa020 );
-+ if( peek( AC97_02_MASTER_VOL) != 0xa020 )
-+ {
-+ ac97_hw[SOUND_MIXER_VOLUME].scale = 32;
-+ }
-+
-+ poke( AC97_04_HEADPHONE_VOL, 0xa020 );
-+ if( peek( AC97_04_HEADPHONE_VOL) != 0xa020 )
-+ {
-+ ac97_hw[AC97_04_HEADPHONE_VOL].scale = 32;
-+ }
-+
-+ poke( AC97_06_MONO_VOL, 0x8020 );
-+ if( peek( AC97_06_MONO_VOL) != 0x8020 )
-+ {
-+ ac97_hw[AC97_06_MONO_VOL].scale = 32;
-+ }
-+
-+ /* initialize mixer channel volumes */
-+ for( i = 0;
-+ (i < SOUND_MIXER_NRDEVICES) && (mixer_defaults[i].mixer != -1) ;
-+ i++ )
-+ {
-+ if( !supported_mixer( mixer_defaults[i].mixer) )
-+ {
-+ continue;
-+ }
-+
-+ ep93xx_set_mixer( mixer_defaults[i].mixer, mixer_defaults[i].value);
-+ }
-+
-+}
-+
-+static int ep93xx_set_recsource( int mask )
-+{
-+ unsigned int val;
-+
-+ /* Arg contains a bit for each recording source */
-+ if( mask == 0 )
-+ {
-+ return 0;
-+ }
-+
-+ mask &= AC97_RECORD_MASK;
-+
-+ if( mask == 0 )
-+ {
-+ return -EINVAL;
-+ }
-+
-+ /*
-+ * May have more than one bit set. So clear out currently selected
-+ * record source value first (AC97 supports only 1 input)
-+ */
-+ val = (1 << ac97_rm2oss[peek( AC97_1A_RECORD_SELECT ) & 0x07]);
-+ if (mask != val)
-+ mask &= ~val;
-+
-+ val = ffs(mask);
-+ val = ac97_oss_rm[val-1];
-+ val |= val << 8; /* set both channels */
-+
-+ /*
-+ *
-+ */
-+ val = peek( AC97_1A_RECORD_SELECT ) & 0x0707;
-+ if ((val&0x0404)!=0)
-+ val=0x0404;
-+ else if((val&0x0000)!=0)
-+ val=0x0101;
-+
-+
-+ DPRINTK("ac97_codec: setting ac97 recmask to 0x%04x\n", val);
-+
-+ poke( AC97_1A_RECORD_SELECT, val);
-+
-+ return 0;
-+}
-+
-+/*
-+ * ep93xx_init_ac97_codec
-+ *
-+ * Program up the external Ac97 codec.
-+ *
-+ */
-+static void ep93xx_init_ac97_codec( void )
-+{
-+ DPRINTK("ep93xx_init_ac97_codec - enter\n");
-+
-+ ep93xx_setup_src();
-+ ep93xx_set_samplerate( AUDIO_SAMPLE_RATE_DEFAULT, 0 );
-+ ep93xx_set_samplerate( AUDIO_SAMPLE_RATE_DEFAULT, 1 );
-+ ep93xx_init_mixer();
-+
-+ DPRINTK("ep93xx_init_ac97_codec - EXIT\n");
-+
-+}
-+
-+
-+/*
-+ * ep93xx_audio_init
-+ * Audio interface
-+ */
-+static void ep93xx_audio_init(void)
-+{
-+ DPRINTK("ep93xx_audio_init - enter\n");
-+ /*
-+ * Init the controller, enable the ac-link.
-+ * Initialize the codec.
-+ */
-+ ep93xx_init_ac97_controller();
-+ ep93xx_init_ac97_codec();
-+ /*stop the audio loop from the input to the output directly*/
-+ ep93xx_stop_loop();
-+
-+#ifdef alsa_ac97_debug
-+ ep93xx_dump_ac97_regs();
-+#endif
-+ DPRINTK("ep93xx_audio_init - EXIT\n");
-+}
-+
-+/*====================================================================================*/
-+
-+
-+static void print_audio_format( long format )
-+{
-+ switch( format ){
-+ case SNDRV_PCM_FORMAT_S8:
-+ DPRINTK( "AFMT_S8\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ DPRINTK( "AFMT_U8\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ DPRINTK( "AFMT_S16_LE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_BE:
-+ DPRINTK( "AFMT_S16_BE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ DPRINTK( "AFMT_U16_LE\n" );
-+ break;
-+ case SNDRV_PCM_FORMAT_U16_BE:
-+ DPRINTK( "AFMT_U16_BE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ DPRINTK( "AFMT_S24_LE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_BE:
-+ DPRINTK( "AFMT_S24_BE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ DPRINTK( "AFMT_U24_LE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U24_BE:
-+ DPRINTK( "AFMT_U24_BE\n" );
-+ break;
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ DPRINTK( "AFMT_S24_LE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S32_BE:
-+ DPRINTK( "AFMT_S24_BE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U32_LE:
-+ DPRINTK( "AFMT_U24_LE\n" );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U32_BE:
-+ DPRINTK( "AFMT_U24_BE\n" );
-+ break;
-+ default:
-+ DPRINTK( "ep93xx_i2s_Unsupported Audio Format\n" );
-+ break;
-+ }
-+}
-+
-+static void audio_set_format( audio_stream_t * s, long val )
-+{
-+ DPRINTK( "ep93xx_i2s_audio_set_format enter. Format requested (%d) %d ",
-+ (int)val,SNDRV_PCM_FORMAT_S16_LE);
-+ print_audio_format( val );
-+
-+ switch( val ){
-+ case SNDRV_PCM_FORMAT_S8:
-+ s->audio_format = SNDRV_PCM_FORMAT_S8;
-+ s->audio_stream_bitwidth = 8;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ s->audio_format = SNDRV_PCM_FORMAT_U8;
-+ s->audio_stream_bitwidth = 8;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ case SNDRV_PCM_FORMAT_S16_BE:
-+ s->audio_format = SNDRV_PCM_FORMAT_S16_LE;
-+ s->audio_stream_bitwidth = 16;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ case SNDRV_PCM_FORMAT_U16_BE:
-+ s->audio_format = SNDRV_PCM_FORMAT_U16_LE;
-+ s->audio_stream_bitwidth = 16;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ case SNDRV_PCM_FORMAT_S24_BE:
-+ s->audio_format = SNDRV_PCM_FORMAT_S24_LE;
-+ s->audio_stream_bitwidth = 24;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ case SNDRV_PCM_FORMAT_U24_BE:
-+ s->audio_format = SNDRV_PCM_FORMAT_U24_LE;
-+ s->audio_stream_bitwidth = 24;
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U32_LE:
-+ case SNDRV_PCM_FORMAT_U32_BE:
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ case SNDRV_PCM_FORMAT_S32_BE:
-+ s->audio_format = SNDRV_PCM_FORMAT_S32_LE;
-+ s->audio_stream_bitwidth = 32;
-+ break;
-+ default:
-+ DPRINTK( "ep93xx_i2s_Unsupported Audio Format\n" );
-+ break;
-+ }
-+
-+ DPRINTK( "ep93xx_i2s_audio_set_format EXIT format set to be (%d) ", (int)s->audio_format );
-+ print_audio_format( (long)s->audio_format );
-+}
-+
-+static __inline__ unsigned long copy_to_user_S24_LE
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+
-+ int total_to_count = to_count;
-+ int *user_ptr = (int *)to; /* 32 bit user buffer */
-+ int count;
-+
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+
-+ __put_user( (int)( *dma_buffer_0++ ), user_ptr++ );
-+ __put_user( (int)( *dma_buffer_0++ ), user_ptr++ );
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (int)( *dma_buffer_1++ ), user_ptr++ );
-+ __put_user( (int)( *dma_buffer_1++ ), user_ptr++ );
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (int)( *dma_buffer_2++ ), user_ptr++ );
-+ __put_user( (int)( *dma_buffer_2++ ), user_ptr++ );
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U24_LE
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+
-+ int total_to_count = to_count;
-+ unsigned int * user_ptr = (unsigned int *)to; /* 32 bit user buffer */
-+ int count;
-+
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+ __put_user( ((unsigned int)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned int)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( ((unsigned int)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned int)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( ((unsigned int)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned int)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_S16_LE
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int total_to_count = to_count;
-+ short * user_ptr = (short *)to; /* 16 bit user buffer */
-+ int count;
-+
-+ count = 4 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+
-+ __put_user( (short)( *dma_buffer_0++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_0++ ), user_ptr++ );
-+
-+ if( stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (short)( *dma_buffer_1++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_1++ ), user_ptr++ );
-+ }
-+
-+ if( stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (short)( *dma_buffer_2++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_2++ ), user_ptr++ );
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U16_LE
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ short * user_ptr = (short *)to; /* 16 bit user buffer */
-+
-+ count = 4 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+
-+ __put_user( ((unsigned short)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( ((unsigned short)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( ((unsigned short)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_S8
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ char * user_ptr = (char *)to; /* 8 bit user buffer */
-+
-+ count = 2 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (to_count > 0){
-+
-+ __put_user( (char)( *dma_buffer_0 ), user_ptr++ );
-+ dma_buffer_0 += 4;
-+ __put_user( (char)( *dma_buffer_0 ), user_ptr++ );
-+ dma_buffer_0 += 4;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (char)( *dma_buffer_1 ), user_ptr++ );
-+ dma_buffer_1 += 4;
-+ __put_user( (char)( *dma_buffer_1 ), user_ptr++ );
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (char)( *dma_buffer_2 ), user_ptr++ );
-+ dma_buffer_2 += 4;
-+ __put_user( (char)( *dma_buffer_2 ), user_ptr++ );
-+ dma_buffer_2 += 4;
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U8
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ char * user_ptr = (char *)to; /* 8 bit user buffer */
-+
-+ count = 2 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (to_count > 0){
-+
-+ __put_user( (char)( *dma_buffer_0 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_0 += 4;
-+ __put_user( (char)( *dma_buffer_0 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_0 += 4;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (char)( *dma_buffer_1 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_1 += 4;
-+ __put_user( (char)( *dma_buffer_1 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (char)( *dma_buffer_2 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_2 += 4;
-+ __put_user( (char)( *dma_buffer_2 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_2 += 4;
-+ }
-+ to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+
-+
-+
-+static __inline__ unsigned long copy_to_user_S16_LE_CM
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ short *dma_buffer_0 = (short *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int total_to_count = to_count;
-+ short * user_ptr = (short *)to; /* 16 bit user buffer */
-+ int count;
-+
-+
-+ count = 4 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+ if(stream->audio_num_channels == 2){
-+ __put_user( (short)( *dma_buffer_0++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_0++ ), user_ptr++ );
-+ to_count -= count;
-+ }
-+ else{
-+ dma_buffer_0++;
-+ __put_user( (short)( *dma_buffer_0++ ), user_ptr++ );
-+ to_count -= 2;
-+ }
-+
-+ if( stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (short)( *dma_buffer_1++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_1++ ), user_ptr++ );
-+ }
-+
-+ if( stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (short)( *dma_buffer_2++ ), user_ptr++ );
-+ __put_user( (short)( *dma_buffer_2++ ), user_ptr++ );
-+ }
-+ //to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U16_LE_CM
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ unsigned short *dma_buffer_0 = (unsigned short *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ unsigned short * user_ptr = (unsigned short *)to; /* 16 bit user buffer */
-+
-+ count = 4 * stream->dma_num_channels;
-+
-+ while (to_count > 0){
-+
-+ if(stream->audio_num_channels == 2){
-+ __put_user( ((unsigned short)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+ to_count -= count;
-+ }
-+ else{
-+ dma_buffer_0++;
-+ __put_user( ((unsigned short)( *dma_buffer_0++ )) ^ 0x8000, user_ptr++ );
-+ to_count -= 2;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( ((unsigned short)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_1++ )) ^ 0x8000, user_ptr++ );
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( ((unsigned short)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ __put_user( ((unsigned short)( *dma_buffer_2++ )) ^ 0x8000, user_ptr++ );
-+ }
-+ //to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_S8_CM
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ unsigned short *dma_buffer_0 = (unsigned short *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ char * user_ptr = (char *)to; /* 8 bit user buffer */
-+
-+ count = 2 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (to_count > 0){
-+ if(stream->audio_num_channels == 2){
-+ __put_user( (char)( *dma_buffer_0++ >> 8), user_ptr++ );
-+ //dma_buffer_0 += 4;
-+ __put_user( (char)( *dma_buffer_0++ >> 8), user_ptr++ );
-+ //dma_buffer_0 += 4;
-+ to_count -= count;
-+ }
-+ else{
-+ dma_buffer_0++ ;
-+ __put_user( (char)( *dma_buffer_0++ >> 8), user_ptr++ );
-+
-+ to_count -= 1;
-+ }
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (char)( *dma_buffer_1 ), user_ptr++ );
-+ dma_buffer_1 += 4;
-+ __put_user( (char)( *dma_buffer_1 ), user_ptr++ );
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (char)( *dma_buffer_2 ), user_ptr++ );
-+ dma_buffer_2 += 4;
-+ __put_user( (char)( *dma_buffer_2 ), user_ptr++ );
-+ dma_buffer_2 += 4;
-+ }
-+ //to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U8_CM
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ unsigned short *dma_buffer_0 = (unsigned short *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ int total_to_count = to_count;
-+ char * user_ptr = (char *)to; /* 8 bit user buffer */
-+
-+ count = 2 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (to_count > 0){
-+ if(stream->audio_num_channels == 2){
-+ __put_user( (char)( *dma_buffer_0++ >>8) ^ 0x80, user_ptr++ );
-+ //dma_buffer_0 += 4;
-+ __put_user( (char)( *dma_buffer_0++ >>8) ^ 0x80, user_ptr++ );
-+ //dma_buffer_0 += 4;
-+ to_count -= count;
-+ }
-+ else{
-+ dma_buffer_0++;
-+ __put_user( (char)( *dma_buffer_0++ >>8) ^ 0x80, user_ptr++ );
-+ //dma_buffer_0 += 4;
-+ to_count--;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __put_user( (char)( *dma_buffer_1 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_1 += 4;
-+ __put_user( (char)( *dma_buffer_1 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __put_user( (char)( *dma_buffer_2 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_2 += 4;
-+ __put_user( (char)( *dma_buffer_2 ) ^ 0x80, user_ptr++ );
-+ dma_buffer_2 += 4;
-+ }
-+ //to_count -= count;
-+ }
-+ return total_to_count;
-+}
-+
-+static __inline__ unsigned long copy_to_user_U32
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ unsigned long to_count
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+
-+ if(__copy_to_user( (char *)to, dma_buffer_0, to_count))
-+ {
-+ return -EFAULT;
-+ }
-+ return to_count;
-+}
-+
-+static __inline__ int copy_to_user_with_conversion
-+(
-+ audio_stream_t *stream,
-+ const char *to,
-+ int toCount,
-+ int bCompactMode
-+)
-+{
-+ int ret = 0;
-+
-+ if( toCount == 0 ){
-+ DPRINTK("ep93xx_i2s_copy_to_user_with_conversion - nothing to copy!\n");
-+ }
-+
-+ if( bCompactMode == 1 ){
-+
-+ switch( stream->audio_format ){
-+
-+ case SNDRV_PCM_FORMAT_S8:
-+ ret = copy_to_user_S8_CM( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ ret = copy_to_user_U8_CM( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ ret = copy_to_user_S16_LE_CM( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ ret = copy_to_user_U16_LE_CM( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ //ret = copy_to_user_S24_LE( stream, to, toCount );
-+ //break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ //ret = copy_to_user_U24_LE( stream, to, toCount );
-+ //break;
-+
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ default:
-+ DPRINTK( "ep93xx_i2s copy to user unsupported audio format %x\n",stream->audio_format );
-+ break;
-+ }
-+
-+ }
-+ else{
-+
-+ switch( stream->audio_format ){
-+
-+ case SNDRV_PCM_FORMAT_S8:
-+ ret = copy_to_user_S8( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ ret = copy_to_user_U8( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ ret = copy_to_user_S16_LE( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ ret = copy_to_user_U16_LE( stream, to, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ //ret = copy_to_user_S24_LE( stream, to, toCount );
-+ //break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ //ret = copy_to_user_U24_LE( stream, to, toCount );
-+ //break;
-+ DPRINTK( "ep93xx_i2s copy to user unsupported audio format %x\n",stream->audio_format );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+
-+ //__copy_to_user( (char *)to, from, toCount);
-+ ret = copy_to_user_U32( stream, to, toCount );
-+ break;
-+ default:
-+ DPRINTK( "ep93xx_i2s copy to user unsupported audio format\n" );
-+ break;
-+ }
-+
-+ }
-+ return ret;
-+}
-+
-+static __inline__ int copy_from_user_S24_LE
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+
-+ unsigned int * user_buffer = (unsigned int *)from;
-+ unsigned int data;
-+
-+ int toCount0 = toCount;
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = (unsigned int)data;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = (unsigned int)data;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = (unsigned int)data;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = (unsigned int)data;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = (unsigned int)data;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = (unsigned int)data;
-+ }
-+ toCount -= count;
-+ }
-+ return toCount0 / 2;
-+}
-+
-+static __inline__ int copy_from_user_U24_LE
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+ unsigned int * user_buffer = (unsigned int *)from;
-+ unsigned int data;
-+
-+ int toCount0 = toCount;
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ }
-+ toCount -= count;
-+ }
-+ return toCount0 / 2;
-+}
-+
-+static __inline__ int copy_from_user_S16_LE
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ unsigned short *user_buffer = (unsigned short *)from;
-+ unsigned short data;
-+
-+ int toCount0 = toCount;
-+ int count;
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = data;
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0++ = data;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = data;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = data;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = data;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = data;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 4;
-+ }
-+ return toCount0 / 2;
-+}
-+
-+static __inline__ int copy_from_user_U16_LE
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+ unsigned short * user_buffer = (unsigned short *)from;
-+ unsigned short data;
-+
-+ int toCount0 = toCount;
-+ count = 8 * stream->dma_num_channels;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 4;
-+ }
-+ return toCount0 / 2;
-+}
-+
-+static __inline__ int copy_from_user_S8
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ unsigned char * user_buffer = (unsigned char *)from;
-+ unsigned char data;
-+
-+ int toCount0 = toCount;
-+ count = 8 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (toCount > 0){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0 = data;
-+ dma_buffer_0 += 4;
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0 = data;
-+ dma_buffer_0 += 4;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = data;
-+ dma_buffer_1 += 4;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = data;
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = data;
-+ dma_buffer_2 += 4;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = data;
-+ dma_buffer_2 += 4;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 8;
-+ }
-+ return toCount0 / 4;
-+}
-+
-+static __inline__ int copy_from_user_U8
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ unsigned char *user_buffer = (unsigned char *)from;
-+ unsigned char data;
-+
-+ int toCount0 = toCount;
-+ count = 8 * stream->dma_num_channels;
-+
-+ dma_buffer_0 ++;
-+ dma_buffer_1 ++;
-+ dma_buffer_2 ++;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_0 += 4;
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_0 += 4;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_1 += 4;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_1 += 4;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_2 += 4;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_2 += 4;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 8;
-+ }
-+ return toCount0 / 4;
-+}
-+
-+static __inline__ int copy_from_user_S16_LE_CM
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ unsigned int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ unsigned int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ unsigned int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ unsigned short *user_buffer = (unsigned short *)from;
-+ short data;
-+ unsigned int val;
-+ int toCount0 = toCount;
-+ int count;
-+ count = 4 * stream->dma_num_channels;
-+
-+ //printk("count=%x tocount\n",count,toCount);
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_0++ = data;
-+ val = (unsigned int)data & 0x0000ffff;
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0++ = ((unsigned int)data << 16) | val;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_1++ = data;
-+ val = (unsigned int)data & 0x0000ffff;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1++ = ((unsigned int)data << 16) | val;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_2++ = data;
-+ val = (unsigned int)data & 0x0000ffff;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2++ = ((unsigned int)data << 16) | val;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 /2 ;
-+ }
-+
-+ return toCount0 ;
-+}
-+
-+static __inline__ int copy_from_user_U16_LE_CM
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ int *dma_buffer_0 = (int *)stream->hwbuf[0];
-+ int *dma_buffer_1 = (int *)stream->hwbuf[1];
-+ int *dma_buffer_2 = (int *)stream->hwbuf[2];
-+ int count;
-+ unsigned short * user_buffer = (unsigned short *)from;
-+ unsigned short data;
-+ unsigned int val;
-+ int toCount0 = toCount;
-+ count = 4 * stream->dma_num_channels;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+ val = (unsigned int)data & 0x0000ffff;
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ //*dma_buffer_0++ = ((unsigned int)data ^ 0x8000);
-+ *dma_buffer_0++ = (((unsigned int)data << 16) | val) ^ 0x80008000;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ val = (unsigned int)data & 0x0000ffff;
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_1++ = ((unsigned int)data ^ 0x8000);
-+ *dma_buffer_1++ = (((unsigned int)data << 16) | val) ^ 0x80008000;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ val = (unsigned int)data & 0x0000ffff;
-+ __get_user(data, user_buffer++);
-+ //*dma_buffer_2++ = ((unsigned int)data ^ 0x8000);
-+ *dma_buffer_2++ = (((unsigned int)data << 16) | val) ^ 0x80008000;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0/2;
-+ }
-+ return toCount0 ;
-+}
-+
-+static __inline__ int copy_from_user_S8_CM
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+ char *dma_buffer_1 = (char *)stream->hwbuf[1];
-+ char *dma_buffer_2 = (char *)stream->hwbuf[2];
-+ int count;
-+ unsigned char * user_buffer = (unsigned char *)from;
-+ unsigned char data;
-+ int toCount0 = toCount;
-+ count = 4 * stream->dma_num_channels;
-+
-+ dma_buffer_0++;
-+ dma_buffer_1++;
-+ dma_buffer_2++;
-+
-+ while (toCount > 0){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0 = data;
-+ *(dma_buffer_0 +1 ) = 0;
-+ dma_buffer_0 += 2;
-+
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0 = data;
-+ *(dma_buffer_0 +1 ) = 0;
-+ dma_buffer_0 += 2;
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = data;
-+ dma_buffer_1 += 2;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = data;
-+ dma_buffer_1 += 2;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = data;
-+ dma_buffer_2 += 2;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = data;
-+ dma_buffer_2 += 2;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 4;
-+ }
-+
-+ return toCount0 / 2;
-+}
-+
-+static __inline__ int copy_from_user_U8_CM
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ unsigned char *dma_buffer_0 = (unsigned char *)stream->hwbuf[0];
-+ unsigned char *dma_buffer_1 = (unsigned char *)stream->hwbuf[1];
-+ unsigned char *dma_buffer_2 = (unsigned char *)stream->hwbuf[2];
-+ int count;
-+ unsigned char *user_buffer = (unsigned char *)from;
-+ unsigned char data;
-+
-+ int toCount0 = toCount;
-+ count = 4 * stream->dma_num_channels;
-+
-+ dma_buffer_0 ++;
-+ dma_buffer_1 ++;
-+ dma_buffer_2 ++;
-+
-+ while (toCount > 0){
-+
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_0 = ((unsigned char)data ^ 0x80);
-+ *(dma_buffer_0 +1 ) = 0;
-+ dma_buffer_0 += 2;
-+
-+ if(stream->audio_num_channels == 2){
-+ __get_user(data, user_buffer++);
-+ }
-+ *dma_buffer_0 = ((unsigned char)data ^ 0x80);
-+ *(dma_buffer_0 +1 ) = 0;
-+ dma_buffer_0 += 2;
-+
-+
-+ if(stream->audio_channels_flag & CHANNEL_REAR ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_1 += 2;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_1 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_1 += 2;
-+ }
-+
-+ if(stream->audio_channels_flag & CHANNEL_CENTER_LFE ){
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_2 += 2;
-+ __get_user(data, user_buffer++);
-+ *dma_buffer_2 = ((unsigned char)data ^ 0x80);
-+ dma_buffer_2 += 2;
-+ }
-+ toCount -= count;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ return toCount0 / 4;
-+ }
-+
-+ return toCount0 / 2;
-+}
-+
-+static int copy_from_user_U32
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount
-+)
-+{
-+ char *dma_buffer_0 = (char *)stream->hwbuf[0];
-+
-+ if (copy_from_user( (char *)dma_buffer_0, from, toCount))
-+ {
-+ return -EFAULT;
-+ }
-+
-+ return toCount;
-+
-+}
-+
-+/*
-+ * Returns negative for error
-+ * Returns # of bytes transferred out of the from buffer
-+ * for success.
-+ */
-+static __inline__ int copy_from_user_with_conversion
-+(
-+ audio_stream_t *stream,
-+ const char *from,
-+ int toCount,
-+ int bCompactMode
-+)
-+{
-+ int ret = 0;
-+// DPRINTK("copy_from_user_with_conversion\n");
-+ if( toCount == 0 ){
-+ DPRINTK("ep93xx_i2s_copy_from_user_with_conversion - nothing to copy!\n");
-+ }
-+
-+ if( bCompactMode == 1){
-+
-+ switch( stream->audio_format ){
-+
-+ case SNDRV_PCM_FORMAT_S8:
-+ DPRINTK("SNDRV_PCM_FORMAT_S8 CM\n");
-+ ret = copy_from_user_S8_CM( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ DPRINTK("SNDRV_PCM_FORMAT_U8 CM\n");
-+ ret = copy_from_user_U8_CM( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S16_LE CM\n");
-+ ret = copy_from_user_S16_LE_CM( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_U16_LE CM\n");
-+ ret = copy_from_user_U16_LE_CM( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S24_LE CM\n");
-+ //ret = copy_from_user_S24_LE( stream, from, toCount );
-+ //break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_U24_LE CM\n");
-+ //ret = copy_from_user_U24_LE( stream, from, toCount );
-+ //break;
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S32_LE CM\n");
-+ //break;
-+ default:
-+ DPRINTK( "ep93xx_i2s copy from user unsupported audio format\n" );
-+ break;
-+ }
-+ }
-+ else{
-+ switch( stream->audio_format ){
-+
-+ case SNDRV_PCM_FORMAT_S8:
-+ DPRINTK("SNDRV_PCM_FORMAT_S8\n");
-+ ret = copy_from_user_S8( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U8:
-+ DPRINTK("SNDRV_PCM_FORMAT_U8\n");
-+ ret = copy_from_user_U8( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S16_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S16_LE\n");
-+ ret = copy_from_user_S16_LE( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_U16_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_U16_LE\n");
-+ ret = copy_from_user_U16_LE( stream, from, toCount );
-+ break;
-+
-+ case SNDRV_PCM_FORMAT_S24_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S24_LE\n");
-+ //ret = copy_from_user_S24_LE( stream, from, toCount );
-+ //break;
-+
-+ case SNDRV_PCM_FORMAT_U24_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_U24_LE\n");
-+ //ret = copy_from_user_U24_LE( stream, from, toCount );
-+ //break;
-+ DPRINTK( "ep93xx_i2s copy from user unsupported audio format\n" );
-+ break;
-+ case SNDRV_PCM_FORMAT_S32_LE:
-+ DPRINTK("SNDRV_PCM_FORMAT_S32_LE\n");
-+ ret = copy_from_user_U32( stream, from, toCount );
-+ break;
-+ default:
-+ DPRINTK( "ep93xx_i2s copy from user unsupported audio format\n" );
-+ break;
-+ }
-+ }
-+
-+ return ret;
-+}
-+
-+
-+
-+/*
-+ * For audio playback, we convert samples of arbitrary format to be 32 bit
-+ * for our hardware. We're scaling a user buffer to a dma buffer. So when
-+ * report byte counts, we scale them acording to the ratio of DMA sample
-+ * size to user buffer sample size. When we report # of DMA fragments,
-+ * we don't scale that. So:
-+ *
-+ * Also adjust the size and number of dma fragments if sample size changed.
-+ *
-+ * Input format Input sample Output sample size ratio (out:in)
-+ * bits channels size (bytes) CM non-CM CM non-CM
-+ * 8 stereo 2 4 8 2:1 4:1
-+ * 16 stereo 4 4 8 1:1 2:1
-+ * 24 stereo 6 4 8 X 8:6 not a real case
-+ *
-+ */
-+static void snd_ep93xx_dma2usr_ratio( audio_stream_t * stream,int bCompactMode )
-+{
-+ unsigned int dma_sample_size, user_sample_size;
-+
-+ if(bCompactMode == 1){
-+ dma_sample_size = 4; /* each stereo sample is 2 * 32 bits */
-+ }
-+ else{
-+ dma_sample_size = 8;
-+ }
-+
-+ // If stereo 16 bit, user sample is 4 bytes.
-+ // If stereo 8 bit, user sample is 2 bytes.
-+ if(stream->audio_num_channels == 1){
-+ user_sample_size = stream->audio_stream_bitwidth / 8;
-+ }
-+ else{
-+ user_sample_size = stream->audio_stream_bitwidth / 4;
-+ }
-+
-+ stream->dma2usr_ratio = dma_sample_size / user_sample_size;
-+}
-+
-+/*---------------------------------------------------------------------------------------------*/
-+
-+static int snd_ep93xx_dma_free(struct snd_pcm_substream *substream ){
-+
-+
-+ audio_state_t *state = substream->private_data;
-+ audio_stream_t *stream = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_stream:state->input_stream;
-+ int i;
-+
-+
-+ DPRINTK("snd_ep93xx_dma_free - enter\n");
-+ for( i = 0 ; i < stream->dma_num_channels ;i++ ){
-+ ep93xx_dma_free( stream->dmahandles[i] );
-+ }
-+ DPRINTK("snd_ep93xx_dma_free - exit\n");
-+ return 0;
-+}
-+
-+static int snd_ep93xx_dma_config(struct snd_pcm_substream *substream ){
-+
-+ audio_state_t *state = substream->private_data;
-+ audio_stream_t *stream = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_stream:state->input_stream;
-+ int i,err = 0;
-+
-+ DPRINTK("snd_ep93xx_dma_config - enter\n");
-+
-+ for( i = 0 ; i < stream->dma_num_channels ;i++ ){
-+
-+ err = ep93xx_dma_request(&stream->dmahandles[i],
-+ stream->devicename,
-+ (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_dma[i]:state->input_dma[i] );
-+ if (err){
-+ printk("snd_ep93xx_dma_config - exit ERROR dma request failed\n");
-+ return err;
-+ }
-+ err = ep93xx_dma_config( stream->dmahandles[i],
-+ IGNORE_CHANNEL_ERROR,
-+ 0,
-+ (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ snd_ep93xx_dma_tx_callback:snd_ep93xx_dma_rx_callback,
-+ (unsigned int)substream );
-+ if (err){
-+ printk("snd_ep93xx_dma_config - exit ERROR dma request failed\n");
-+ return err;
-+ }
-+ }
-+
-+ DPRINTK("snd_ep93xx_dma_config - enter\n");
-+ return err;
-+}
-+
-+static void snd_ep93xx_dma_start( audio_state_t * state, audio_stream_t * stream )
-+{
-+ int err,i;
-+
-+ DPRINTK("snd_ep93xx_dma_start - enter\n");
-+
-+ for(i = 0 ;i < stream->dma_num_channels;i++)
-+ err = ep93xx_dma_start( stream->dmahandles[i], 1,(unsigned int *) stream->dmahandles );
-+
-+ stream->active = 1;
-+
-+ DPRINTK("snd_ep93xx_dma_start - exit\n");
-+}
-+
-+static void snd_ep93xx_dma_pause( audio_state_t * state, audio_stream_t * stream )
-+{
-+ int i;
-+
-+ DPRINTK("snd_ep93xx_dma_pause - enter\n");
-+
-+ for(i = 0 ;i < stream->dma_num_channels;i++)
-+ ep93xx_dma_pause( stream->dmahandles[i], 1,(unsigned int *)stream->dmahandles );
-+
-+ stream->active = 0;
-+ DPRINTK("snd_ep93xx_dma_pause - exit\n");
-+
-+}
-+
-+static void snd_ep93xx_dma_flush( audio_state_t * state, audio_stream_t * stream ){
-+
-+ int i;
-+
-+ DPRINTK("snd_ep93xx_dma_flush - enter\n");
-+
-+ for( i = 0 ; i < stream->dma_num_channels ; i++ )
-+ ep93xx_dma_flush( stream->dmahandles[i] );
-+
-+ DPRINTK("snd_ep93xx_dma_flush - exit\n");
-+}
-+
-+static void snd_ep93xx_deallocate_buffers( struct snd_pcm_substream *substream, audio_stream_t *stream )
-+{
-+ int i;
-+ audio_channel_t *dma_chan;
-+
-+ DPRINTK("snd_ep93xx_deallocate_buffers - enter\n");
-+
-+ if( stream->dma_channels ){
-+
-+ for(i = 0;i < stream->dma_num_channels;i++){
-+
-+ dma_chan = &stream->dma_channels[i];
-+
-+ if( dma_chan->area ){
-+
-+ if( dma_chan->audio_buffers ){
-+
-+ kfree(dma_chan->audio_buffers);
-+ dma_chan->audio_buffers = NULL;
-+
-+ }
-+
-+ kfree(dma_chan->area);
-+ dma_chan->area = NULL;
-+ }
-+ }
-+ kfree(stream->dma_channels);
-+ stream->dma_channels = NULL;
-+ }
-+ DPRINTK("snd_ep93xx_deallocate_buffers - exit\n");
-+}
-+
-+static int snd_ep93xx_allocate_buffers(struct snd_pcm_substream *substream, audio_stream_t *stream)
-+{
-+ audio_channel_t *channel;
-+ unsigned int size,tmpsize,bufsize,bufextsize;
-+ int i,j;
-+
-+
-+ DPRINTK("snd_ep93xx_allocate_buffers - enter\n" );
-+
-+ if (stream->dma_channels){
-+ printk("ep93xx_i2s %s BUSY\n",__FUNCTION__);
-+ return -EBUSY;
-+ }
-+
-+ stream->dma_channels = (audio_channel_t *)kmalloc(sizeof(audio_channel_t) * stream->dma_num_channels , GFP_KERNEL);
-+
-+ if (!stream->dma_channels){
-+ printk(AUDIO_NAME ": unable to allocate dma_channels memory\n");
-+ return - ENOMEM;
-+ }
-+
-+ size = ( stream->dmasize / stream->dma_num_channels ) * stream->dma2usr_ratio;
-+
-+ for( i = 0; i < stream->dma_num_channels;i++){
-+ channel = &stream->dma_channels[i];
-+
-+ channel->area = kmalloc( size, GFP_DMA );
-+
-+ if(!channel->area){
-+ printk(AUDIO_NAME ": unable to allocate audio memory\n");
-+ return -ENOMEM;
-+ }
-+ channel->bytes = size;
-+ channel->addr = __virt_to_phys((int) channel->area);
-+ memset( channel->area, 0, channel->bytes );
-+
-+ bufsize = ( stream->fragsize / stream->dma_num_channels ) * stream->dma2usr_ratio;
-+ channel->audio_buff_count = size / bufsize;
-+ bufextsize = size % bufsize;
-+
-+ if( bufextsize > 0 ){
-+ channel->audio_buff_count++;
-+ }
-+
-+ channel->audio_buffers = (audio_buf_t *)kmalloc(sizeof(audio_buf_t) * channel->audio_buff_count , GFP_KERNEL);
-+
-+ if (!channel->audio_buffers){
-+ printk(AUDIO_NAME ": unable to allocate audio memory\n ");
-+ return -ENOMEM;
-+ }
-+
-+ tmpsize = size;
-+
-+ for( j = 0; j < channel->audio_buff_count; j++){
-+
-+ channel->audio_buffers[j].dma_addr = channel->addr + j * bufsize;
-+
-+ if( tmpsize >= bufsize ){
-+ tmpsize -= bufsize;
-+ channel->audio_buffers[j].bytes = bufsize;
-+ channel->audio_buffers[j].reportedbytes = bufsize / stream->dma2usr_ratio;
-+ }
-+ else{
-+ channel->audio_buffers[j].bytes = bufextsize;
-+ channel->audio_buffers[j].reportedbytes = bufextsize / stream->dma2usr_ratio;
-+ }
-+ }
-+ }
-+
-+ DPRINTK("snd_ep93xx_allocate_buffers -- exit SUCCESS\n" );
-+ return 0;
-+}
-+
-+/*
-+ * DMA callback functions
-+ */
-+
-+static void snd_ep93xx_dma_tx_callback
-+(
-+ ep93xx_dma_int_t DMAInt,
-+ ep93xx_dma_dev_t device,
-+ unsigned int user_data
-+)
-+{
-+ int handle;
-+ int i,chan;
-+ unsigned int buf_id;
-+
-+ struct snd_pcm_substream *substream = (struct snd_pcm_substream *)user_data;
-+ audio_state_t *state = (audio_state_t *)(substream->private_data);
-+ audio_stream_t *stream = state->output_stream;
-+ audio_buf_t *buf;
-+
-+ switch( device )
-+ {
-+ case DMATx_I2S3:
-+ DPRINTK( "snd_ep93xx_dma_tx_callback - DMATx_I2S3\n");
-+ i = 2;
-+ break;
-+ case DMATx_I2S2:
-+ DPRINTK( "snd_ep93xx_dma_tx_callback - DMATx_I2S2\n");
-+ i = 1;
-+ break;
-+ case DMATx_I2S1:
-+ default:
-+ DPRINTK( "snd_ep93xx_dma_tx_callback - DMATx_I2S1\n");
-+ i = 0;
-+ break;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ chan = 0;
-+ }
-+ else{
-+ chan = stream->audio_num_channels / 2 - 1;
-+ }
-+ handle = stream->dmahandles[i];
-+
-+ if(stream->stopped == 0){
-+
-+ if( ep93xx_dma_remove_buffer( handle, &buf_id ) >= 0 ){
-+
-+ buf = (audio_buf_t *)buf_id;
-+ stream->bytecount += buf->reportedbytes;
-+ ep93xx_dma_add_buffer( stream->dmahandles[i],
-+ (unsigned int)buf->dma_addr,
-+ 0,
-+ buf->bytes,
-+ 0,
-+ (unsigned int) buf );
-+ if(chan == i)
-+ snd_pcm_period_elapsed(substream);
-+ }
-+ }
-+}
-+
-+static void snd_ep93xx_dma_rx_callback
-+(
-+ ep93xx_dma_int_t DMAInt,
-+ ep93xx_dma_dev_t device,
-+ unsigned int user_data
-+)
-+{
-+ int handle,i,chan;
-+ unsigned int buf_id;
-+ audio_buf_t *buf;
-+
-+ struct snd_pcm_substream *substream = (struct snd_pcm_substream *)user_data;
-+ audio_state_t *state = (audio_state_t *)(substream->private_data);
-+ audio_stream_t *stream = state->input_stream;
-+
-+ switch( device ){
-+
-+ case DMARx_I2S3:
-+ DPRINTK( "snd_ep93xx_dma_rx_callback - DMARx_I2S3\n");
-+ i = 2;
-+ break;
-+ case DMARx_I2S2:
-+ DPRINTK( "snd_ep93xx_dma_rx_callback - DMARx_I2S2\n");
-+ i = 1;
-+ break;
-+ case DMARx_I2S1:
-+ default:
-+ DPRINTK( "snd_ep93xx_dma_rx_callback - DMARx_I2S1\n");
-+ i = 0;
-+ break;
-+ }
-+
-+ if(stream->audio_num_channels == 1){
-+ chan = 0;
-+ }
-+ else{
-+ chan = stream->audio_num_channels / 2 - 1;
-+ }
-+ handle = stream->dmahandles[i];
-+
-+ if( stream->stopped == 0 ){
-+
-+ if( ep93xx_dma_remove_buffer( handle, &buf_id ) >= 0 ){
-+
-+ buf = (audio_buf_t *)buf_id;
-+ stream->bytecount += buf->reportedbytes;
-+ ep93xx_dma_add_buffer( stream->dmahandles[i],
-+ (unsigned int)buf->dma_addr,
-+ 0,
-+ buf->bytes,
-+ 0,
-+ (unsigned int) buf );
-+ if( i == chan )
-+ snd_pcm_period_elapsed(substream);
-+ }
-+ }
-+}
-+
-+static int snd_ep93xx_release(struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *)substream->private_data;
-+ audio_stream_t *stream = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_stream : state->input_stream;
-+
-+ DPRINTK("snd_ep93xx_release - enter\n");
-+
-+ down(&state->sem);
-+ stream->active = 0;
-+ stream->stopped = 0;
-+ snd_ep93xx_deallocate_buffers(substream, stream);
-+ up(&state->sem);
-+
-+ DPRINTK("snd_ep93xx_release - exit\n");
-+
-+ return 0;
-+}
-+
-+static int ep93xx_ac97_pcm_startup(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ int r;
-+ int iTempMasterVol,iTempHeadphoneVol,iTempMonoVol,iTempRecordSelect;
-+ /*save the old mixer*/
-+ iTempRecordSelect = peek(AC97_1A_RECORD_SELECT);
-+ iTempMasterVol = peek( AC97_02_MASTER_VOL);
-+ iTempHeadphoneVol = peek( AC97_04_HEADPHONE_VOL);
-+ iTempMonoVol = peek( AC97_06_MONO_VOL);
-+
-+ runtime->hw.channels_min = 1;
-+ runtime->hw.channels_max = 2;
-+
-+ ep93xx_audio_init();
-+ /*ep93xx_init_ac97_controller();*/
-+
-+ /*reset the old output mixer*/
-+ poke( AC97_02_MASTER_VOL, iTempMasterVol);
-+ poke( AC97_04_HEADPHONE_VOL,iTempHeadphoneVol );
-+ poke( AC97_06_MONO_VOL, iTempMonoVol);
-+ poke( AC97_1A_RECORD_SELECT,iTempRecordSelect);
-+
-+ r = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ AC97_RATES_FRONT_DAC : AC97_RATES_ADC;
-+
-+ DPRINTK(" ep93xx_ac97_pcm_startup=%x\n",r);
-+
-+ return 0;
-+}
-+
-+
-+static int snd_ep93xx_pcm_hw_params(struct snd_pcm_substream *substream,
-+ struct snd_pcm_hw_params *params)
-+{
-+ DPRINTK("snd_ep93xx_pcm_hw_params - enter\n");
-+ return snd_pcm_lib_malloc_pages(substream,params_buffer_bytes(params));
-+}
-+
-+static int snd_ep93xx_pcm_hw_free(struct snd_pcm_substream *substream)
-+{
-+
-+ DPRINTK("snd_ep93xx_pcm_hw_free - enter\n");
-+ return snd_pcm_lib_free_pages(substream);
-+}
-+
-+/*
-+ *snd_ep93xx_pcm_prepare: need to finish these functions as lower
-+ *chip_set_sample_format
-+ *chip_set_sample_rate
-+ *chip_set_channels
-+ *chip_set_dma_setup
-+ */
-+
-+static int snd_ep93xx_pcm_prepare_playback( struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *) substream->private_data;
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->output_stream;
-+
-+ DPRINTK("snd_ep93xx_pcm_prepare_playback - enter\n");
-+
-+ ep93xx_audio_disable(1);
-+ ep93xx_ac97_pcm_startup(substream);
-+
-+ snd_ep93xx_deallocate_buffers(substream,stream);
-+
-+ //if(runtime->channels % 2 != 0)
-+ // return -1;
-+
-+ DPRINTK("The runtime item : \n");
-+ DPRINTK("runtime->dma_addr = 0x%x\n", runtime->dma_addr);
-+ DPRINTK("runtime->dma_area = 0x%x\n", runtime->dma_area);
-+ DPRINTK("runtime->dma_bytes = %d\n", runtime->dma_bytes);
-+ DPRINTK("runtime->frame_bits = %d\n", runtime->frame_bits);
-+ DPRINTK("runtime->buffer_size = %d\n", runtime->buffer_size);
-+ DPRINTK("runtime->period_size = %d\n", runtime->period_size);
-+ DPRINTK("runtime->periods = %d\n", runtime->periods);
-+ DPRINTK("runtime->rate = %d\n", runtime->rate);
-+ DPRINTK("runtime->format = %d\n", runtime->format);
-+ DPRINTK("runtime->channels = %d\n", runtime->channels);
-+
-+ /* set requestd format when available */
-+ stream->audio_num_channels = runtime->channels;
-+ if(stream->audio_num_channels == 1){
-+ stream->dma_num_channels = 1;
-+ }
-+ else{
-+ stream->dma_num_channels = runtime->channels / 2;
-+ }
-+
-+ stream->audio_channels_flag = CHANNEL_FRONT;
-+ if(stream->dma_num_channels == 2)
-+ stream->audio_channels_flag |= CHANNEL_REAR;
-+ if(stream->dma_num_channels == 3)
-+ stream->audio_channels_flag |= CHANNEL_REAR | CHANNEL_CENTER_LFE;
-+
-+ stream->dmasize = runtime->dma_bytes;
-+ stream->nbfrags = runtime->periods;
-+ stream->fragsize = frames_to_bytes (runtime, runtime->period_size);
-+ stream->bytecount = 0;
-+
-+ if( !state->codec_set_by_capture ){
-+ state->codec_set_by_playback = 1;
-+
-+ if( stream->audio_rate != runtime->rate ){
-+ ep93xx_set_samplerate( runtime->rate,0 );
-+ }
-+ //if( stream->audio_format != runtime->format ){
-+ // snd_ep93xx_i2s_init((stream->audio_stream_bitwidth == 24));
-+ //}
-+ }
-+ else{
-+ audio_stream_t *s = state->input_stream;
-+ if( runtime->format != s->audio_format)
-+ return -1;
-+ if( runtime->rate != s->audio_rate )
-+ return -1;
-+ }
-+
-+ stream->audio_format = runtime->format ;
-+ ep93xx_set_hw_format(stream->audio_format,stream->audio_num_channels);
-+
-+
-+ stream->audio_rate = runtime->rate;
-+ audio_set_format( stream, runtime->format );
-+ snd_ep93xx_dma2usr_ratio( stream,state->bCompactMode );
-+
-+ if( snd_ep93xx_allocate_buffers( substream, stream ) != 0 ){
-+ snd_ep93xx_deallocate_buffers( substream, stream );
-+ return -1;
-+ }
-+
-+ ep93xx_audio_enable(1);
-+
-+ DPRINTK("snd_ep93xx_pcm_prepare_playback - exit\n");
-+ return 0;
-+}
-+
-+static int snd_ep93xx_pcm_prepare_capture( struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *) substream->private_data;
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->input_stream;
-+
-+ ep93xx_audio_disable(0);
-+ ep93xx_ac97_pcm_startup(substream);
-+
-+ snd_ep93xx_deallocate_buffers(substream,stream);
-+
-+ //if(runtime->channels % 2 != 0)
-+ //return -1;
-+
-+ DPRINTK("snd_ep93xx_pcm_prepare_capture - enter\n");
-+
-+// printk("The runtime item : \n");
-+// printk("runtime->dma_addr = 0x%x\n", runtime->dma_addr);
-+// printk("runtime->dma_area = 0x%x\n", runtime->dma_area);
-+// printk("runtime->dma_bytes = %d\n", runtime->dma_bytes);
-+// printk("runtime->frame_bits = %d\n", runtime->frame_bits);
-+// printk("runtime->buffer_size = %d\n", runtime->buffer_size);
-+// printk("runtime->period_size = %d\n", runtime->period_size);
-+// printk("runtime->periods = %d\n", runtime->periods);
-+// printk("runtime->rate = %d\n", runtime->rate);
-+// printk("runtime->format = %d\n", runtime->format);
-+// printk("runtime->channels = %d\n", runtime->channels);
-+
-+ /* set requestd format when available */
-+ stream->audio_num_channels = runtime->channels;
-+ if(stream->audio_num_channels == 1){
-+ stream->dma_num_channels = 1;
-+ }
-+ else{
-+ stream->dma_num_channels = runtime->channels / 2;
-+ }
-+
-+ stream->audio_channels_flag = CHANNEL_FRONT;
-+ if(stream->dma_num_channels == 2)
-+ stream->audio_channels_flag |= CHANNEL_REAR;
-+ if(stream->dma_num_channels == 3)
-+ stream->audio_channels_flag |= CHANNEL_REAR | CHANNEL_CENTER_LFE;
-+
-+ stream->dmasize = runtime->dma_bytes;
-+ stream->nbfrags = runtime->periods;
-+ stream->fragsize = frames_to_bytes (runtime, runtime->period_size);
-+ stream->bytecount = 0;
-+
-+ if( !state->codec_set_by_playback ){
-+ state->codec_set_by_capture = 1;
-+
-+ /*rate*/
-+ if( stream->audio_rate != runtime->rate ){
-+ ep93xx_set_samplerate( runtime->rate,1 );
-+ }
-+
-+ /*mixer*/
-+ ep93xx_set_recsource(SOUND_MASK_MIC|SOUND_MASK_LINE1 | SOUND_MASK_LINE);
-+ poke( AC97_1C_RECORD_GAIN, 0);
-+
-+ /*format*/
-+ //if( stream->audio_format != runtime->format ){
-+ // snd_ep93xx_i2s_init((stream->audio_stream_bitwidth == 24));
-+ //}
-+ }
-+ else{
-+ audio_stream_t *s = state->output_stream;
-+ if( runtime->format != s->audio_format)
-+ return -1;
-+ if( runtime->rate != s->audio_rate )
-+ return -1;
-+ }
-+
-+ stream->audio_format = runtime->format ;
-+ ep93xx_set_hw_format(stream->audio_format,stream->audio_num_channels);
-+
-+
-+ stream->audio_rate = runtime->rate;
-+ audio_set_format( stream, runtime->format );
-+ snd_ep93xx_dma2usr_ratio( stream,state->bCompactMode );
-+
-+ if( snd_ep93xx_allocate_buffers( substream, stream ) != 0 ){
-+ snd_ep93xx_deallocate_buffers( substream, stream );
-+ return -1;
-+ }
-+
-+ ep93xx_audio_enable(0);
-+
-+ DPRINTK("snd_ep93xx_pcm_prepare_capture - exit\n");
-+ return 0;
-+}
-+/*
-+ *start/stop/pause dma translate
-+ */
-+static int snd_ep93xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-+{
-+ audio_state_t *state = (audio_state_t *)substream->private_data;
-+ audio_stream_t *stream = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_stream:state->input_stream;
-+ audio_buf_t *buf;
-+ audio_channel_t *dma_channel;
-+ int i,count,ret = 0;
-+ unsigned long flags;
-+
-+ DPRINTK("snd_ep93xx_pcm_triger %d - enter \n",cmd);
-+
-+ switch (cmd){
-+
-+ case SNDRV_PCM_TRIGGER_START:
-+
-+ snd_ep93xx_dma_config( substream );
-+
-+ stream->stopped = 0;
-+
-+ if( !stream->active && !stream->stopped ){
-+ stream->active = 1;
-+ snd_ep93xx_dma_start( state, stream );
-+ }
-+
-+ local_irq_save(flags);
-+
-+ for (i = 0; i < stream->dma_num_channels; i++){
-+ dma_channel = &stream->dma_channels[i];
-+
-+ for(count = 0 ;count < dma_channel->audio_buff_count; count++){
-+
-+ buf = &dma_channel->audio_buffers[count];
-+ ep93xx_dma_add_buffer( stream->dmahandles[i],
-+ (unsigned int)buf->dma_addr,
-+ 0,
-+ buf->bytes,
-+ 0,
-+ (unsigned int) buf );
-+ }
-+ }
-+
-+ local_irq_restore(flags);
-+ break;
-+
-+ case SNDRV_PCM_TRIGGER_STOP:
-+ stream->stopped = 1;
-+ snd_ep93xx_dma_pause( state, stream );
-+ snd_ep93xx_dma_flush( state, stream );
-+ snd_ep93xx_dma_free( substream );
-+ break;
-+
-+ case SNDRV_PCM_TRIGGER_SUSPEND:
-+ break;
-+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-+ break;
-+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-+ break;
-+
-+ default:
-+ ret = -EINVAL;
-+ }
-+ DPRINTK("snd_ep93xx_pcm_triger %d - exit \n",cmd);
-+ return ret;
-+}
-+
-+static snd_pcm_uframes_t snd_ep93xx_pcm_pointer_playback(struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *)(substream->private_data);
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->output_stream;
-+ snd_pcm_uframes_t pointer = 0;
-+
-+ pointer = bytes_to_frames( runtime,stream->bytecount );
-+
-+ if (pointer >= runtime->buffer_size){
-+ pointer = 0;
-+ stream->bytecount = 0;
-+ }
-+
-+ DPRINTK("snd_ep93xx_pcm_pointer_playback - exit\n");
-+ return pointer;
-+}
-+
-+static snd_pcm_uframes_t snd_ep93xx_pcm_pointer_capture(struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *)(substream->private_data);
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->input_stream;
-+ snd_pcm_uframes_t pointer = 0;
-+
-+ pointer = bytes_to_frames( runtime,stream->bytecount );
-+
-+ if (pointer >= runtime->buffer_size){
-+ pointer = 0;
-+ stream->bytecount = 0;
-+ }
-+
-+ DPRINTK("snd_ep93xx_pcm_pointer_capture - exit\n");
-+ return pointer;
-+}
-+
-+static int snd_ep93xx_pcm_open(struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = substream->private_data;
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
-+ state->output_stream:state->input_stream;
-+
-+ DPRINTK("snd_ep93xx_pcm_open - enter\n");
-+
-+ down(&state->sem);
-+
-+ runtime->hw = ep93xx_ac97_pcm_hardware;
-+
-+ stream->dma_num_channels = AUDIO_DEFAULT_DMACHANNELS;
-+ stream->dma_channels = NULL;
-+ stream->audio_rate = 0;
-+ stream->audio_stream_bitwidth = 0;
-+
-+ up(&state->sem);
-+
-+ DPRINTK("snd_ep93xx_pcm_open - exit\n");
-+ return 0;
-+}
-+
-+/*
-+ *free the HW dma channel
-+ *free the HW dma buffer
-+ *free the Hw dma decrotion using function :kfree
-+ */
-+static int snd_ep93xx_pcm_close(struct snd_pcm_substream *substream)
-+{
-+ audio_state_t *state = (audio_state_t *)(substream->private_data);
-+
-+ DPRINTK("snd_ep93xx_pcm_close - enter\n");
-+
-+ snd_ep93xx_release(substream);
-+
-+ if(substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+ state->codec_set_by_playback = 0;
-+ else
-+ state->codec_set_by_capture = 0;
-+
-+ DPRINTK("snd_ep93xx_pcm_close - exit\n");
-+ return 0;
-+}
-+
-+static int snd_ep93xx_pcm_copy_playback(struct snd_pcm_substream * substream,int channel,
-+ snd_pcm_uframes_t pos,void __user *src, snd_pcm_uframes_t count)
-+{
-+
-+ audio_state_t *state = (audio_state_t *)substream->private_data;
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->output_stream ;
-+ audio_channel_t *dma_channel;
-+ int i;
-+ int tocount = frames_to_bytes(runtime,count);
-+
-+ for( i = 0; i < stream->dma_num_channels; i++ ){
-+
-+ dma_channel = &stream->dma_channels[i];
-+ stream->hwbuf[i] = dma_channel->area + ( frames_to_bytes(runtime,pos) * stream->dma2usr_ratio / stream->dma_num_channels );
-+
-+ }
-+
-+ if(copy_from_user_with_conversion(stream ,(const char*)src,(tocount * stream->dma2usr_ratio),state->bCompactMode) <=0 ){
-+ DPRINTK(KERN_ERR "copy_from_user_with_conversion() failed\n");
-+ return -EFAULT;
-+ }
-+
-+ DPRINTK("snd_ep93xx_pcm_copy_playback - exit\n");
-+ return 0;
-+}
-+
-+
-+static int snd_ep93xx_pcm_copy_capture(struct snd_pcm_substream * substream,int channel,
-+ snd_pcm_uframes_t pos,void __user *src, snd_pcm_uframes_t count)
-+{
-+ audio_state_t *state = (audio_state_t *)substream->private_data;
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ audio_stream_t *stream = state->input_stream ;
-+ audio_channel_t *dma_channel;
-+ int i;
-+
-+ int tocount = frames_to_bytes(runtime,count);
-+
-+ for( i = 0; i < stream->dma_num_channels; i++ ){
-+
-+ dma_channel = &stream->dma_channels[i];
-+ stream->hwbuf[i] = dma_channel->area + ( frames_to_bytes(runtime,pos) * stream->dma2usr_ratio / stream->dma_num_channels );
-+
-+ }
-+
-+ if(copy_to_user_with_conversion(stream,(const char*)src,tocount,state->bCompactMode) <=0 ){
-+
-+ DPRINTK(KERN_ERR "copy_to_user_with_conversion() failed\n");
-+ return -EFAULT;
-+ }
-+
-+ DPRINTK("snd_ep93xx_pcm_copy_capture - exit\n");
-+ return 0;
-+}
-+
-+/*----------------------------------------------------------------------------------*/
-+static unsigned short ep93xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
-+{
-+ int val = -1;
-+ /*volatile u32 *reg_addr;*/
-+
-+ DPRINTK(" number of codec:%x reg=%x\n",ac97->num,reg);
-+ val=peek(reg);
-+ if(val==-1){
-+ printk(KERN_ERR "%s: read error (ac97_reg=%d )val=%x\n",
-+ __FUNCTION__, reg, val);
-+ return 0;
-+ }
-+
-+ return val;
-+}
-+
-+static void ep93xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
-+{
-+ /*volatile u32 *reg_addr;*/
-+ int ret;
-+
-+ DPRINTK(" number of codec:%x rge=%x val=%x\n",ac97->num,reg,val);
-+ ret=poke(reg, val);
-+ if(ret!=0){
-+ printk(KERN_ERR "%s: write error (ac97_reg=%d val=%x)\n",
-+ __FUNCTION__, reg, val);
-+ }
-+
-+}
-+
-+static void ep93xx_ac97_reset(struct snd_ac97 *ac97)
-+{
-+
-+ DPRINTK(" ep93xx_ac97_reset\n");
-+ ep93xx_audio_init();
-+
-+}
-+
-+static struct snd_ac97_bus_ops ep93xx_ac97_ops = {
-+ .read = ep93xx_ac97_read,
-+ .write = ep93xx_ac97_write,
-+ .reset = ep93xx_ac97_reset,
-+};
-+
-+static struct snd_pcm *ep93xx_ac97_pcm;
-+static struct snd_ac97 *ep93xx_ac97_ac97;
-+
-+static struct snd_pcm_ops snd_ep93xx_pcm_playback_ops = {
-+ .open = snd_ep93xx_pcm_open,
-+ .close = snd_ep93xx_pcm_close,
-+ .ioctl = snd_pcm_lib_ioctl,
-+ .hw_params = snd_ep93xx_pcm_hw_params,
-+ .hw_free = snd_ep93xx_pcm_hw_free,
-+ .prepare = snd_ep93xx_pcm_prepare_playback,
-+ .trigger = snd_ep93xx_pcm_trigger,
-+ .pointer = snd_ep93xx_pcm_pointer_playback,
-+ .copy = snd_ep93xx_pcm_copy_playback,
-+
-+};
-+
-+static struct snd_pcm_ops snd_ep93xx_pcm_capture_ops = {
-+ .open = snd_ep93xx_pcm_open,
-+ .close = snd_ep93xx_pcm_close,
-+ .ioctl = snd_pcm_lib_ioctl,
-+ .hw_params = snd_ep93xx_pcm_hw_params,
-+ .hw_free = snd_ep93xx_pcm_hw_free,
-+ .prepare = snd_ep93xx_pcm_prepare_capture,
-+ .trigger = snd_ep93xx_pcm_trigger,
-+ .pointer = snd_ep93xx_pcm_pointer_capture,
-+ .copy = snd_ep93xx_pcm_copy_capture,
-+};
-+
-+/*--------------------------------------------------------------------------*/
-+
-+
-+static int snd_ep93xx_pcm_new(struct snd_card *card, audio_state_t *state, struct snd_pcm **rpcm)
-+{
-+ struct snd_pcm *pcm;
-+ int play = state->output_stream? 1 : 0;/*SNDRV_PCM_STREAM_PLAYBACK*/
-+ int capt = state->input_stream ? 1 : 0;/*SNDRV_PCM_STREAM_CAPTURE*/
-+ int ret = 0;
-+
-+ DPRINTK("snd_ep93xx_pcm_new - enter\n");
-+
-+ /* Register the new pcm device interface */
-+ ret = snd_pcm_new(card, "EP93xx-AC97-PCM", 0, play, capt, &pcm);
-+
-+ if (ret){
-+ DPRINTK("%s--%x:card=%x,play=%x,capt=%x,&pcm=%x\n",__FUNCTION__,ret,(int)card,play,capt,(int)pcm);
-+ goto out;
-+ }
-+
-+ /* allocate the pcm(DMA) memory */
-+ ret = snd_pcm_lib_preallocate_pages_for_all(pcm, /*SNDRV_DMA_TYPE_DEV,0,*/SNDRV_DMA_TYPE_CONTINUOUS,snd_dma_continuous_data(GFP_KERNEL),128*1024,128*1024);
-+
-+ DPRINTK("The substream item : \n");
-+ DPRINTK("pcm->streams[0].substream->dma_buffer.addr = 0x%x\n", pcm->streams[0].substream->dma_buffer.addr);
-+ DPRINTK("pcm->streams[0].substream->dma_buffer.area = 0x%x\n", pcm->streams[0].substream->dma_buffer.area);
-+ DPRINTK("pcm->streams[0].substream->dma_buffer.bytes = 0x%x\n", pcm->streams[0].substream->dma_buffer.bytes);
-+ DPRINTK("pcm->streams[1].substream->dma_buffer.addr = 0x%x\n", pcm->streams[1].substream->dma_buffer.addr);
-+ DPRINTK("pcm->streams[1].substream->dma_buffer.area = 0x%x\n", pcm->streams[1].substream->dma_buffer.area);
-+ DPRINTK("pcm->streams[1].substream->dma_buffer.bytes = 0x%x\n", pcm->streams[1].substream->dma_buffer.bytes);
-+
-+ pcm->private_data = state;
-+
-+ /* seem to free the pcm data struct-->self dma buffer */
-+ pcm->private_free = (void*) snd_pcm_lib_preallocate_free_for_all;
-+
-+ /* alsa pcm ops setting for SNDRV_PCM_STREAM_PLAYBACK */
-+ if (play) {
-+ int stream = SNDRV_PCM_STREAM_PLAYBACK;
-+ snd_pcm_set_ops(pcm, stream, &snd_ep93xx_pcm_playback_ops);
-+ }
-+
-+ /* alsa pcm ops setting for SNDRV_PCM_STREAM_CAPTURE */
-+ if (capt) {
-+ int stream = SNDRV_PCM_STREAM_CAPTURE;
-+ snd_pcm_set_ops(pcm, stream, &snd_ep93xx_pcm_capture_ops);
-+ }
-+
-+ if (rpcm)
-+ *rpcm = pcm;
-+ DPRINTK("snd_ep93xx_pcm_new - exit\n");
-+out:
-+ return ret;
-+}
-+
-+#ifdef CONFIG_PM
-+
-+int ep93xx_ac97_do_suspend(struct snd_card *card, unsigned int state)
-+{
-+ if (card->power_state != SNDRV_CTL_POWER_D3cold) {
-+ snd_pcm_suspend_all(ep93xx_ac97_pcm);
-+ snd_ac97_suspend(ep93xx_ac97_ac97);
-+ snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
-+ }
-+
-+ return 0;
-+}
-+
-+int ep93xx_ac97_do_resume(struct snd_card *card, unsigned int state)
-+{
-+ if (card->power_state != SNDRV_CTL_POWER_D0) {
-+
-+ snd_ac97_resume(ep93xx_ac97_ac97);
-+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
-+ }
-+
-+ return 0;
-+}
-+
-+int ep93xx_ac97_suspend(struct platform_device *_dev, u32 state, u32 level)
-+{
-+ struct snd_card *card = platform_get_drvdata(_dev);
-+ int ret = 0;
-+
-+ if (card && level == SUSPEND_DISABLE)
-+ ret = ep93xx_ac97_do_suspend(card, SNDRV_CTL_POWER_D3cold);
-+
-+ return ret;
-+}
-+
-+int ep93xx_ac97_resume(struct platform_device *_dev, u32 level)
-+{
-+ struct snd_card *card = platform_get_drvdata(_dev);
-+ int ret = 0;
-+
-+ if (card && level == RESUME_ENABLE)
-+ ret = ep93xx_ac97_do_resume(card, SNDRV_CTL_POWER_D0);
-+
-+ return ret;
-+}
-+
-+#else
-+/*
-+#define ep93xx_ac97_do_suspend NULL
-+#define ep93xx_ac97_do_resume NULL
-+#define ep93xx_ac97_suspend NULL
-+#define ep93xx_ac97_resume NULL
-+*/
-+
-+int ep93xx_ac97_do_suspend(struct snd_card *card, unsigned int state)
-+{
-+ return 0;
-+}
-+
-+int ep93xx_ac97_do_resume(struct snd_card *card, unsigned int state)
-+{
-+ return 0;
-+}
-+
-+int ep93xx_ac97_resume(struct platform_device *_dev, u32 level)
-+{
-+ struct snd_card *card = platform_get_drvdata(_dev);
-+ int ret = 0;
-+
-+ //if (card && level == RESUME_ENABLE)
-+ ret = ep93xx_ac97_do_resume(card, SNDRV_CTL_POWER_D0);
-+
-+ return ret;
-+}
-+
-+int ep93xx_ac97_suspend(struct platform_device *_dev, u32 state, u32 level)
-+{
-+ struct snd_card *card = platform_get_drvdata(_dev);
-+ int ret = 0;
-+
-+ //if (card && level == SUSPEND_DISABLE)
-+ ret = ep93xx_ac97_do_suspend(card, SNDRV_CTL_POWER_D3cold);
-+
-+ return ret;
-+}
-+
-+#endif
-+
-+
-+
-+/* module init & exit */
-+static int __devinit ep93xx_ac97_probe(struct platform_device *dev)
-+{
-+ struct snd_card *card;
-+ struct snd_ac97_bus *ac97_bus;
-+ struct snd_ac97_template ac97_template;
-+ int err = -ENOMEM;
-+ struct resource *res = NULL;
-+
-+ DPRINTK("snd_ep93xx_probe - enter\n");
-+
-+ /* Enable audio early on, give the DAC time to come up. */
-+ res = platform_get_resource( dev, IORESOURCE_MEM, 0);
-+
-+ if(!res) {
-+ printk("error : platform_get_resource \n");
-+ return -ENODEV;
-+ }
-+
-+ if (!request_mem_region(res->start,res->end - res->start + 1, "snd-ac97-cs4202" )){
-+ printk("error : request_mem_region\n");
-+ return -EBUSY;
-+ }
-+
-+ /*enable ac97 codec*/
-+ ep93xx_audio_init();
-+
-+ /* register the soundcard */
-+ card = snd_card_new(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
-+ THIS_MODULE, 0);
-+ if (!card){
-+ printk("AC97: snd_card_new error\n");
-+ goto error;
-+ }
-+
-+ card->dev = &dev->dev;
-+ /*regist the new pcm device*/
-+ err = snd_ep93xx_pcm_new(card, &audio_state, &ep93xx_ac97_pcm);
-+ if (err){
-+ printk("AC97: ep93xx_ac97_pcm_new error\n");
-+ goto error;
-+ }
-+ if (card == NULL) {
-+ DPRINTK(KERN_ERR "snd_card_new() failed\n");
-+ goto error;
-+ }
-+
-+ /*driver name*/
-+ strcpy(card->driver, "CS4202A");
-+ strcpy(card->shortname, "Cirrus Logic AC97 Audio ");
-+ strcpy(card->longname, "Cirrus Logic AC97 Audio with CS4202A");
-+
-+ /*regist the new ac97 device*/
-+ err = snd_ac97_bus(card, 0, &ep93xx_ac97_ops, NULL, &ac97_bus);
-+ if (err){
-+ printk("AC97: snd_ac97_bus error\n");
-+ goto error;
-+ }
-+
-+ memset(&ac97_template, 0, sizeof(ac97_template));
-+ err = snd_ac97_mixer(ac97_bus, &ac97_template, &ep93xx_ac97_ac97);
-+ if (err){
-+ printk("AC97: snd_ac97_mixer error\n");
-+ goto error;
-+ }
-+
-+ /**/
-+ ep93xx_audio_init();
-+ /*setting the card device callback*/
-+ //err = snd_card_set_pm_callback(card, ep93xx_ac97_do_suspend,ep93xx_ac97_do_resume, (void*)NULL);
-+ //if(err != 0){
-+ // printk("snd_card_set_pm_callback error\n");
-+ //}
-+
-+ /*regist the new CARD device*/
-+ err = snd_card_register(card);
-+ if (err == 0) {
-+ printk( KERN_INFO "Cirrus Logic ep93xx ac97 audio initialized\n" );
-+ platform_set_drvdata(dev,card);
-+ DPRINTK("snd_ep93xx_probe - exit\n");
-+ return 0;
-+ }
-+
-+error:
-+ snd_card_free(card);
-+ printk("snd_ep93xx_probe - error\n");
-+ return err;
-+
-+return 0;
-+}
-+
-+static int __devexit ep93xx_ac97_remove(struct platform_device *dev)
-+{
-+ struct resource *res;
-+ struct snd_card *card = platform_get_drvdata(dev);
-+
-+ res = platform_get_resource( dev, IORESOURCE_MEM, 0);
-+ release_mem_region(res->start, res->end - res->start + 1);
-+
-+ DPRINTK("snd_ep93xx_ac97_remove - enter\n");
-+
-+ if (card) {
-+ snd_card_free(card);
-+ platform_set_drvdata(dev, NULL);
-+ }
-+ DPRINTK("snd_ep93xx_remove - exit\n");
-+
-+return 0;
-+}
-+
-+
-+static struct platform_driver ep93xx_ac97_driver = {
-+ .probe = ep93xx_ac97_probe,
-+ .remove = __devexit_p (ep93xx_ac97_remove),
-+ .suspend = ep93xx_ac97_suspend,
-+ .resume = ep93xx_ac97_resume,
-+ .driver = {
-+ .name = "ep93xx-ac97",
-+ },
-+};
-+
-+
-+static int __init ep93xx_ac97_init(void)
-+{
-+ int ret;
-+
-+ DPRINTK(KERN_INFO "%s: version %s\n", DRIVER_DESC, DRIVER_VERSION);
-+ DPRINTK("snd_ep93xx_AC97_init - enter\n");
-+ ret = platform_driver_register(&ep93xx_ac97_driver);
-+ DPRINTK("snd_ep93xx_AC97_init - exit\n");
-+ return ret;
-+}
-+
-+static void __exit ep93xx_ac97_exit(void)
-+{
-+ DPRINTK("ep93xx_ac97_exit - enter\n");
-+ return platform_driver_unregister(&ep93xx_ac97_driver);
-+}
-+
-+module_init(ep93xx_ac97_init);
-+module_exit(ep93xx_ac97_exit);
-+
-+MODULE_DESCRIPTION("Cirrus Logic audio module");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/sound/arm/ep93xx-ac97.h
-@@ -0,0 +1,89 @@
-+/*
-+ * linux/sound/arm/ep93xx-ac97.h -- ALSA PCM interface for the edb93xx ac97 audio
-+ *
-+ * Author: Fred Wei
-+ * Created: July 19, 2005
-+ * Copyright: Cirrus Logic, Inc.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#define EP93XX_DEFAULT_NUM_CHANNELS 2
-+#define EP93XX_DEFAULT_FORMAT SNDRV_PCM_FORMAT_S16_LE
-+#define EP93XX_DEFAULT_BIT_WIDTH 16
-+#define MAX_DEVICE_NAME 20
-+
-+/*
-+ * Buffer Management
-+ */
-+
-+typedef struct {
-+
-+ unsigned char *area; /* virtual pointer */
-+ dma_addr_t dma_addr; /* physical address */
-+ size_t bytes;
-+ size_t reportedbytes; /* buffer size */
-+ int sent; /* indicates that dma has the buf */
-+ char *start; /* points to actual buffer */
-+
-+} audio_buf_t;
-+
-+
-+typedef struct {
-+
-+ unsigned char *area; /* virtual pointer */
-+ dma_addr_t addr; /* physical address */
-+ size_t bytes; /* buffer size in bytes */
-+ unsigned char *buff_pos; /* virtual pointer */
-+ audio_buf_t *audio_buffers; /* array of audio buffer structures */
-+ int audio_buff_count;
-+
-+
-+} audio_channel_t;
-+
-+typedef struct audio_stream_s {
-+
-+ /* dma stuff */
-+ int dmahandles[3]; /* handles for dma driver instances */
-+ char devicename[MAX_DEVICE_NAME]; /* string - name of device */
-+ int dma_num_channels; /* 1, 2, or 3 DMA channels */
-+ audio_channel_t *dma_channels;
-+ u_int nbfrags; /* nbr of fragments i.e. buffers */
-+ u_int fragsize; /* fragment i.e. buffer size */
-+ u_int dmasize;
-+ int bytecount; /* nbr of processed bytes */
-+ int externedbytecount; /* nbr of processed bytes */
-+ volatile int active; /* actually in progress */
-+ volatile int stopped; /* might be active but stopped */
-+ char *hwbuf[3];
-+ long audio_rate;
-+ long audio_num_channels; /* Range: 1 to 6 */
-+ int audio_channels_flag;
-+ long audio_format;
-+ long audio_stream_bitwidth; /* Range: 8, 16, 24 */
-+ int dma2usr_ratio;
-+
-+} audio_stream_t;
-+
-+
-+/*
-+ * State structure for one instance
-+ */
-+typedef struct {
-+
-+ audio_stream_t *output_stream;
-+ audio_stream_t *input_stream;
-+ ep93xx_dma_dev_t output_dma[3];
-+ ep93xx_dma_dev_t input_dma[3];
-+ char *output_id[3];
-+ char *input_id[3];
-+ struct semaphore sem; /* to protect against races in attach() */
-+ int codec_set_by_playback;
-+ int codec_set_by_capture;
-+ int DAC_bit_width; /* 16, 20, 24 bits */
-+ int bCompactMode; /* set if 32bits = a stereo sample */
-+
-+} audio_state_t;
-+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 10:15:39 +0000