diff options
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.patch | 3808 |
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 36f316be17..0000000000 --- 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; -+ |