diff options
Diffstat (limited to 'recipes/linux/linux-2.6.18/at73c213-alsa-driver.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.18/at73c213-alsa-driver.patch | 1485 |
1 files changed, 1485 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.18/at73c213-alsa-driver.patch b/recipes/linux/linux-2.6.18/at73c213-alsa-driver.patch new file mode 100644 index 0000000000..ceb12cc950 --- /dev/null +++ b/recipes/linux/linux-2.6.18/at73c213-alsa-driver.patch @@ -0,0 +1,1485 @@ +From nobody Mon Sep 17 00:00:00 2001 +From: Hans-Christian Egtvedt <hcegtvedt@atmel.com> +Date: Fri Apr 28 15:30:44 2006 +0200 +Subject: [PATCH] at73c213 ALSA driver + +This driver uses the SSC and SPI modules to communicate with an at73c213 +sound chip on the AT32STK1000. + +--- + + sound/avr32/Kconfig | 20 + sound/avr32/Makefile | 3 + sound/avr32/at73c213.c | 1296 +++++++++++++++++++++++++++++++++++++++++++++++++ + sound/avr32/at73c213.h | 120 ++++ + 4 files changed, 1439 insertions(+) + create mode 100644 sound/avr32/at73c213.c + create mode 100644 sound/avr32/at73c213.h + +859730d5cbe00b7935c4e30d179c5c5b096deb3c +Index: linux-2.6.18-avr32/sound/avr32/Kconfig +=================================================================== +--- linux-2.6.18-avr32.orig/sound/avr32/Kconfig 2006-11-02 15:56:20.000000000 +0100 ++++ linux-2.6.18-avr32/sound/avr32/Kconfig 2006-11-02 15:56:20.000000000 +0100 +@@ -28,4 +28,24 @@ config SND_ATMEL_AC97C_USE_PDC + Say Y if PDC (Peripheral DMA Controller) is used for DMA transfers + to/from the Atmel AC97C instead of using the generic DMA framework. + ++config SND_AT73C213 ++ tristate "Atmel AT73C213 DAC driver" ++ depends on SND && SPI_ATMEL ++ select SND_PCM ++ help ++ Say Y here if you want to use the Atmel AT73C213 external ++ DAC on the ATSTK1000 development board. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called snd-at73c213. ++ ++config SND_AT73C213_USE_ALSA_MALLOC_CALLS ++ bool "Use the built-in malloc calls in the alsa driver" ++ default n ++ depends on SND_AT73C213 ++ help ++ Say Y if the built-in malloc calls in the alsa driver should be ++ used instead of the native dma_alloc_coherent and dma_free_coherent ++ function calls. Enabling this feature may brake the rmmod feature. ++ + endmenu +Index: linux-2.6.18-avr32/sound/avr32/Makefile +=================================================================== +--- linux-2.6.18-avr32.orig/sound/avr32/Makefile 2006-11-02 15:56:20.000000000 +0100 ++++ linux-2.6.18-avr32/sound/avr32/Makefile 2006-11-02 15:56:20.000000000 +0100 +@@ -4,3 +4,6 @@ + + snd-atmel-ac97-objs := ac97c.o + obj-$(CONFIG_SND_ATMEL_AC97) += snd-atmel-ac97.o ++ ++snd-at73c213-objs := at73c213.o ++obj-$(CONFIG_SND_AT73C213) += snd-at73c213.o +Index: linux-2.6.18-avr32/sound/avr32/at73c213.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.18-avr32/sound/avr32/at73c213.c 2006-11-02 16:01:55.000000000 +0100 +@@ -0,0 +1,1296 @@ ++/* ++ * Driver for the at73c213 16-bit stereo DAC on Atmel ATSTK1000 ++ * ++ * Copyright (C) 2006 Atmel Norway ++ * ++ * 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. ++ * ++ * The full GNU General Public License is included in this ++ * distribution in the file called COPYING. ++ */ ++#undef DEBUG ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/device.h> ++#include <linux/dma-mapping.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/kmod.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++ ++#include <sound/initval.h> ++#include <sound/driver.h> ++#include <sound/control.h> ++#include <sound/core.h> ++#include <sound/pcm.h> ++#ifndef SND_AT73C213_USE_ALSA_MALLOC_CALLS ++#include <sound/memalloc.h> ++#endif ++ ++#include <linux/spi/spi.h> ++ ++#include <asm/io.h> ++#include <asm/processor.h> ++ ++#include "at73c213.h" ++ ++/* module parameters */ ++static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; ++static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; ++static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; ++ ++/* Register defines */ ++#define PIOA_BASE 0xFFE02800 ++#define SSC0_BASE 0xFFE01C00 ++#define PM_BASE 0xFFF00000 ++ ++#define PM_CKSEL 0x04 ++#define PM_APBAMASK 0x10 ++#define PM_GCCTRL 0x60 ++ ++#define PIO_PER 0x00 ++#define PIO_PDR 0x04 ++#define PIO_PUER 0x64 ++#define PIO_ASR 0x70 ++#define PIO_BSR 0x74 ++ ++#define SSC_CMR 0x04 ++#define SSC_CR 0x00 ++#define SSC_TCMR 0x18 ++#define SSC_TFMR 0x1C ++ ++/* SSC register definitions */ ++#define SSC_CR 0x00 ++#define SSC_CMR 0x04 ++#define SSC_TCMR 0x18 ++#define SSC_TFMR 0x1C ++#define SSC_THR 0x24 ++#define SSC_SR 0x40 ++#define SSC_IER 0x44 ++#define SSC_IDR 0x48 ++#define SSC_IMR 0x4C ++ ++/* SSC fields definitions */ ++#define SSC_CR_TXEN 0x00000100 ++#define SSC_CR_TXDIS 0x00000200 ++#define SSC_CR_SWRST 0x00008000 ++ ++/* SSC interrupt definitions */ ++#define SSC0_IRQ 10 ++#define SSC_INT_ENDTX 0x00000004 ++#define SSC_INT_TXBUFE 0x00000008 ++ ++/* PDC register definitions */ ++#define PDC_RPR 0x100 ++#define PDC_RCR 0x104 ++#define PDC_TPR 0x108 ++#define PDC_TCR 0x10c ++#define PDC_RNPR 0x110 ++#define PDC_RNCR 0x114 ++#define PDC_TNPR 0x118 ++#define PDC_TNCR 0x11c ++#define PDC_PTCR 0x120 ++#define PDC_PTSR 0x124 ++ ++/* PDC fields definitions */ ++#define PDC_PTCR_RXTEN 0x0001 ++#define PDC_PTCR_RXTDIS 0x0002 ++#define PDC_PTCR_TXTEN 0x0100 ++#define PDC_PTCR_TXTDIS 0x0200 ++ ++static int bitrate; ++static int gclk_div; ++static int ssc_div; ++static int spi = 0; ++static int ssc = 1; ++ ++module_param(spi, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); ++MODULE_PARM_DESC(spi, "Which SPI interface to use to communicate with the at73c213"); ++module_param(ssc, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); ++MODULE_PARM_DESC(ssc, "Which SSC interface to use to communicate with the at73c213"); ++ ++/* Initial AT73C213 register values */ ++static unsigned char snd_at73c213_original_image[18] = ++{ ++ 0x00, /* 00 - CTRL */ ++ 0x05, /* 01 - LLIG */ ++ 0x05, /* 02 - RLIG */ ++ 0x08, /* 03 - LPMG */ ++ 0x08, /* 04 - RPMG */ ++ 0x00, /* 05 - LLOG */ ++ 0x00, /* 06 - RLOG */ ++ 0x22, /* 07 - OLC */ ++ 0x09, /* 08 - MC */ ++ 0x00, /* 09 - CSFC */ ++ 0x00, /* 0A - MISC */ ++ 0x00, /* 0B - */ ++ 0x00, /* 0C - PRECH */ ++ 0x05, /* 0D - AUXG */ ++ 0x00, /* 0E - */ ++ 0x00, /* 0F - */ ++ 0x00, /* 10 - RST */ ++ 0x00, /* 11 - PA_CTRL */ ++}; ++ ++/* chip-specific data */ ++struct snd_at73c213 { ++ snd_card_t *card; ++ snd_pcm_t *pcm; ++ snd_pcm_substream_t *substream; ++ int irq; ++ int period; ++ void __iomem *regs; ++ struct clk *ssc_clk; ++ struct spi_device *spi; ++ u8 spi_wbuffer[2]; ++ u8 spi_rbuffer[2]; ++ /* image of the SPI registers in AT73C213 */ ++ u8 image[18]; ++ spinlock_t lock; ++ struct platform_device *pdev; ++}; ++ ++#define get_chip(card) ((struct snd_at73c213 *)card->private_data) ++ ++static int ++snd_at73c213_write_reg(struct snd_at73c213 *chip, u8 reg, u8 val) ++{ ++ struct spi_message msg; ++ struct spi_transfer msg_xfer = { ++ .len = 2, ++ .cs_change = 0, ++ }; ++ ++ spi_message_init(&msg); ++ ++ chip->spi_wbuffer[0] = reg; ++ chip->spi_wbuffer[1] = val; ++ ++ msg_xfer.tx_buf = chip->spi_wbuffer; ++ msg_xfer.rx_buf = chip->spi_rbuffer; ++ spi_message_add_tail(&msg_xfer, &msg); ++ ++ return spi_sync(chip->spi, &msg); ++} ++ ++#define write_reg(_spi, reg, val) \ ++ do { \ ++ retval = snd_at73c213_write_reg(_spi, reg, val); \ ++ if (retval) \ ++ goto out; \ ++ } while (0) ++ ++static snd_pcm_hardware_t snd_at73c213_playback_hw = { ++ .info = SNDRV_PCM_INFO_INTERLEAVED | ++ SNDRV_PCM_INFO_BLOCK_TRANSFER, ++ .formats = SNDRV_PCM_FMTBIT_S16_BE, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .rate_min = 8000, /* This will be overwritten with bitrate */ ++ .rate_max = 50000, /* This will be overwritten with bitrate */ ++ .channels_min = 2, ++ .channels_max = 2, ++ .buffer_bytes_max = 64 * 1024 - 1, ++ .period_bytes_min = 512, ++ .period_bytes_max = 64 * 1024 - 1, ++ .periods_min = 4, ++ .periods_max = 1024, ++}; ++ ++/* calculate and set bitrate and divisions */ ++static int snd_at73c213_set_bitrate_and_div(void) ++{ ++ extern struct avr32_cpuinfo boot_cpu_data; ++ unsigned long pll0_hz, apba_hz; ++ unsigned long apba_realdiv, gclk_realdiv, ssc_realdiv, wanted_bitrate; ++ char cpusel, ahbsel, apbasel; ++ int regval; ++ ++ regval = __raw_readl((void __iomem *)PM_BASE + PM_CKSEL); ++ wanted_bitrate = 48000; ++ ++ cpusel = regval & 0x07; ++ ahbsel = (regval>>8) & 0x07; ++ apbasel = (regval>>16) & 0x07; ++ ++ /* FIXME: Use the clk framework for this */ ++ if ((regval&(1<<7)) != 0) { ++ pll0_hz = clk_get_rate(boot_cpu_data.clk)/(1<<(cpusel+1)); ++ } else { ++ pll0_hz = clk_get_rate(boot_cpu_data.clk); ++ } ++ ++ if ((regval&(1<<23)) != 0) { ++ apba_hz = pll0_hz/(1<<(apbasel+1)); ++ apba_realdiv = (1<<(apbasel+1)); ++ } else { ++ apba_hz = pll0_hz; ++ apba_realdiv = 1; ++ } ++ ++calculate: ++ /* Adjust bitrate as close as possible to 48000 Hz */ ++ gclk_realdiv = pll0_hz/(wanted_bitrate*256); ++ ssc_realdiv = 2 * apba_realdiv * gclk_realdiv; ++ ++ if ((gclk_realdiv % 2) == 0) ++ goto setbitrates; ++ ++ if(wanted_bitrate >= 22050 && wanted_bitrate <= 48000) ++ wanted_bitrate -= 50; ++ else if (wanted_bitrate < 22050) ++ wanted_bitrate = 48050; ++ else if (wanted_bitrate <= 50000) ++ wanted_bitrate += 50; ++ else { ++ printk(KERN_ERR "at73c213 could not set dividers for a valid bitrate\n"); ++ return -EINVAL; ++ } ++ ++ goto calculate; ++ ++setbitrates: ++ bitrate = pll0_hz/(gclk_realdiv*256); ++ gclk_div = (gclk_realdiv/2)-1; ++ ssc_realdiv = 2*apba_realdiv*gclk_realdiv; ++ ssc_div = ssc_realdiv/(2*apba_realdiv); ++ ++ printk(KERN_INFO "at73c213: bitrate is %d Hz\n", bitrate); ++ ++ return 0; ++} ++ ++/* open callback */ ++static int snd_at73c213_pcm_open(snd_pcm_substream_t *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ snd_pcm_runtime_t *runtime = substream->runtime; ++ ++ snd_at73c213_playback_hw.rate_min = bitrate; ++ snd_at73c213_playback_hw.rate_max = bitrate; ++ runtime->hw = snd_at73c213_playback_hw; ++ chip->substream = substream; ++ ++ return 0; ++} ++ ++/* close callback */ ++static int snd_at73c213_pcm_close(snd_pcm_substream_t *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ chip->substream = NULL; ++ return 0; ++} ++ ++/* hw_params callback */ ++static int snd_at73c213_pcm_hw_params(snd_pcm_substream_t *substream, ++ snd_pcm_hw_params_t *hw_params) ++{ ++#ifdef SND_AT73C213_USE_ALSA_MALLOC_CALLS ++ return snd_pcm_lib_malloc_pages(substream, ++ params_buffer_bytes(hw_params)); ++#else ++ int pg; ++ size_t size = params_buffer_bytes(hw_params); ++ struct snd_pcm_runtime *runtime; ++ struct snd_dma_buffer *dmab = NULL; ++ ++ substream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV; ++ snd_assert(substream != NULL, return -EINVAL); ++ runtime = substream->runtime; ++ snd_assert(runtime != NULL, return -EINVAL); ++ ++ /* check if buffer is already allocated */ ++ if (runtime->dma_buffer_p) { ++ size_t size_previouse; ++ int pg_previouse; ++ ++ /* new buffer is smaler than previouse allocated buffer */ ++ if (runtime->dma_buffer_p->bytes >= size) { ++ runtime->dma_bytes = size; ++ return 0; /* don't change buffer size */ ++ } ++ ++ size_previouse = runtime->dma_buffer_p->bytes; ++ pg_previouse = get_order(size_previouse); ++ ++ dma_free_coherent(runtime->dma_buffer_p->dev.dev, ++ PAGE_SIZE << pg_previouse, ++ runtime->dma_buffer_p->area, ++ runtime->dma_buffer_p->addr); ++ ++ kfree(runtime->dma_buffer_p); ++ } ++ ++ dmab = kzalloc(sizeof(*dmab), GFP_KERNEL); ++ if (!dmab) ++ return -ENOMEM; ++ ++ dmab->dev = substream->dma_buffer.dev; ++ dmab->bytes = 0; ++ ++ pg = get_order(size); ++ ++ dmab->area = dma_alloc_coherent( ++ substream->dma_buffer.dev.dev, ++ PAGE_SIZE << pg, ++ (dma_addr_t *)&dmab->addr, ++ GFP_KERNEL); ++ ++ if (!dmab->area) { ++ kfree(dmab); ++ return -ENOMEM; ++ } ++ ++ dmab->bytes = size; ++ snd_pcm_set_runtime_buffer(substream, dmab); ++ runtime->dma_bytes = size; ++ return 1; ++#endif ++} ++ ++/* hw_free callback */ ++static int snd_at73c213_pcm_hw_free(snd_pcm_substream_t *substream) ++{ ++#ifdef SND_AT73C213_USE_ALSA_MALLOC_CALLS ++ return snd_pcm_lib_free_pages(substream); ++#else ++ int pg; ++ struct snd_pcm_runtime *runtime; ++ struct snd_dma_buffer *dmab = NULL; ++ ++ snd_assert(substream != NULL, return -EINVAL); ++ runtime = substream->runtime; ++ snd_assert(runtime != NULL, return -EINVAL); ++ dmab = runtime->dma_buffer_p; ++ ++ if (!dmab) ++ return 0; ++ ++ if (!dmab->area) ++ return 0; ++ ++ pg = get_order(dmab->bytes); ++ dma_free_coherent(dmab->dev.dev, PAGE_SIZE << pg, dmab->area, dmab->addr); ++ kfree(runtime->dma_buffer_p); ++ snd_pcm_set_runtime_buffer(substream, NULL); ++ return 0; ++#endif ++} ++ ++/* prepare callback */ ++static int snd_at73c213_pcm_prepare(snd_pcm_substream_t *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ struct platform_device *pdev = chip->pdev; ++ snd_pcm_runtime_t *runtime = substream->runtime; ++ int block_size; ++ ++ block_size = frames_to_bytes(runtime, runtime->period_size); ++ ++ chip->period = 0; ++ ++ /* Make sure that our data are actually readable by the SSC */ ++ dma_sync_single_for_device(&pdev->dev, runtime->dma_addr, ++ block_size, DMA_TO_DEVICE); ++ dma_sync_single_for_device(&pdev->dev, runtime->dma_addr + block_size, ++ block_size, DMA_TO_DEVICE); ++ ++ __raw_writel(runtime->dma_addr, chip->regs + PDC_TPR); ++ __raw_writel(runtime->period_size * 2, chip->regs + PDC_TCR); ++ __raw_writel(runtime->dma_addr + block_size, chip->regs + PDC_TNPR); ++ __raw_writel(runtime->period_size * 2, chip->regs + PDC_TNCR); ++ ++ return 0; ++} ++ ++/* trigger callback */ ++static int snd_at73c213_pcm_trigger(snd_pcm_substream_t *substream, ++ int cmd) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ int retval = 0; ++ int flags = 0; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_START: ++ __raw_writel(SSC_INT_ENDTX, chip->regs + SSC_IER); ++ __raw_writel(PDC_PTCR_TXTEN, chip->regs + PDC_PTCR); ++ break; ++ case SNDRV_PCM_TRIGGER_STOP: ++ __raw_writel(PDC_PTCR_TXTDIS, chip->regs + PDC_PTCR); ++ __raw_writel(SSC_INT_ENDTX, chip->regs + SSC_IDR); ++ break; ++ default: ++ printk(KERN_WARNING "at73c213: spuriouse command %x\n", cmd); ++ retval = -EINVAL; ++ break; ++ } ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return retval; ++} ++ ++/* pointer callback */ ++static snd_pcm_uframes_t snd_at73c213_pcm_pointer(snd_pcm_substream_t *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ snd_pcm_runtime_t *runtime = substream->runtime; ++ snd_pcm_uframes_t pos; ++ unsigned long bytes; ++ ++ bytes = __raw_readl(chip->regs + PDC_TPR) - runtime->dma_addr; ++ ++ pos = bytes_to_frames(runtime, bytes); ++ if (pos >= runtime->buffer_size) ++ pos -= runtime->buffer_size; ++ ++ return pos; ++} ++ ++/* operators */ ++static snd_pcm_ops_t at73c213_playback_ops = { ++ .open = snd_at73c213_pcm_open, ++ .close = snd_at73c213_pcm_close, ++ .ioctl = snd_pcm_lib_ioctl, ++ .hw_params = snd_at73c213_pcm_hw_params, ++ .hw_free = snd_at73c213_pcm_hw_free, ++ .prepare = snd_at73c213_pcm_prepare, ++ .trigger = snd_at73c213_pcm_trigger, ++ .pointer = snd_at73c213_pcm_pointer, ++}; ++ ++/* free a pcm device */ ++static void snd_at73c213_pcm_free(snd_pcm_t *pcm) ++{ ++ struct snd_at73c213 *chip = snd_pcm_chip(pcm); ++ if (chip->pcm != 0 ) { ++#ifdef SND_AT73C213_USE_ALSA_MALLOC_CALLS ++ snd_pcm_lib_preallocate_free_for_all(chip->pcm); ++#endif ++ chip->pcm = NULL; ++ } ++} ++ ++/* create a new pcm device */ ++static int __devinit snd_at73c213_new_pcm(struct snd_at73c213 *chip, int device) ++{ ++ snd_pcm_t *pcm; ++ int retval; ++ ++ retval = snd_pcm_new(chip->card, chip->card->shortname, device, 1, 0, &pcm); ++ if (retval < 0) ++ return retval; ++ ++ pcm->private_data = chip; ++ pcm->private_free = snd_at73c213_pcm_free; ++ pcm->info_flags = SNDRV_PCM_INFO_BLOCK_TRANSFER; ++ strcpy(pcm->name, "at73c213"); ++ chip->pcm = pcm; ++ ++ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &at73c213_playback_ops); ++ ++#ifdef SND_AT73C213_USE_ALSA_MALLOC_CALLS ++ snd_pcm_lib_preallocate_pages_for_all(chip->pcm, SNDRV_DMA_TYPE_DEV, ++ &chip->pdev->dev, 64 * 1024, 64 * 1024); ++#endif ++ ++ return 0; ++} ++ ++static irqreturn_t snd_at73c213_interrupt(int irq, void *dev_id, ++ struct pt_regs *regs) ++{ ++ struct snd_at73c213 *chip = dev_id; ++ struct platform_device *pdev = chip->pdev; ++ snd_pcm_runtime_t *runtime = chip->substream->runtime; ++ u32 status; ++ int offset, next_period, block_size; ++ ++ spin_lock(&chip->lock); ++ ++ block_size = frames_to_bytes(runtime, runtime->period_size); ++ ++ status = __raw_readl(chip->regs + SSC_IMR); ++ ++ if (status & SSC_INT_ENDTX) { ++ chip->period++; ++ if (chip->period == runtime->periods) ++ chip->period = 0; ++ next_period = chip->period + 1; ++ if (next_period == runtime->periods) ++ next_period = 0; ++ ++ offset = block_size * next_period; ++ ++ /* Make sure that our data are actually readable by the SSC */ ++ dma_sync_single_for_device(&pdev->dev, runtime->dma_addr + offset, ++ block_size, DMA_TO_DEVICE); ++ __raw_writel(runtime->dma_addr + offset, chip->regs + PDC_TNPR); ++ __raw_writel(runtime->period_size * 2, chip->regs + PDC_TNCR); ++ ++ if (next_period == 0) { ++ (void)__raw_readl(chip->regs + PDC_TPR); ++ (void)__raw_readl(chip->regs + PDC_TCR); ++ } ++ } else { ++ printk(KERN_WARNING ++ "Spurious SSC interrupt, status = 0x%08lx\n", ++ (unsigned long)status); ++ __raw_writel(status, chip->regs + SSC_IDR); ++ } ++ ++ (void)__raw_readl(chip->regs + SSC_IMR); ++ spin_unlock(&chip->lock); ++ ++ if (status & SSC_INT_ENDTX) ++ snd_pcm_period_elapsed(chip->substream); ++ ++ return IRQ_HANDLED; ++} ++ ++/* ++ * Mixer functions ++ */ ++#if 0 /* Function not in use */ ++static int snd_at73c213_mono_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ unsigned long mask = (kcontrol->private_value >> 16) & 0xff; ++ ++ uinfo->type = (mask == 1) ? ++ SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = mask; ++ ++ return 0; ++} ++#endif ++ ++static int snd_at73c213_mono_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; ++ ++ if (invert) ++ ucontrol->value.integer.value[0] = ++ (mask - ucontrol->value.integer.value[0]); ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ int change, retval; ++ unsigned short val; ++ ++ val = (ucontrol->value.integer.value[0] & mask); ++ if (invert) ++ val = mask - val; ++ val <<= shift; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ val = (chip->image[reg] & ~(mask << shift)) | val; ++ change = val != chip->image[reg]; ++ write_reg(chip, reg, val); ++ ++ chip->image[reg] = val; ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return change; ++ ++out: ++ return retval; ++} ++ ++static int snd_at73c213_stereo_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ int mask = (kcontrol->private_value >> 24) & 0xFF; ++ ++ uinfo->type = mask == 1 ? ++ SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 2; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = mask; ++ ++ return 0; ++} ++ ++static int snd_at73c213_stereo_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int left_reg = kcontrol->private_value & 0xff; ++ int right_reg = (kcontrol->private_value >> 8) & 0xff; ++ int shift_left = (kcontrol->private_value >> 16) & 0x07; ++ int shift_right = (kcontrol->private_value >> 19) & 0x07; ++ int mask = (kcontrol->private_value >> 24) & 0xff; ++ int invert = (kcontrol->private_value >> 22) & 1; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ ucontrol->value.integer.value[0] = ++ (chip->image[left_reg] >> shift_left) & mask; ++ ucontrol->value.integer.value[1] = ++ (chip->image[right_reg] >> shift_right) & mask; ++ ++ if (invert) { ++ ucontrol->value.integer.value[0] = ++ (mask - ucontrol->value.integer.value[0]); ++ ucontrol->value.integer.value[1] = ++ (mask - ucontrol->value.integer.value[1]); ++ } ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return 0; ++} ++ ++static int snd_at73c213_stereo_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int left_reg = kcontrol->private_value & 0xff; ++ int right_reg = (kcontrol->private_value >> 8) & 0xff; ++ int shift_left = (kcontrol->private_value >> 16) & 0x07; ++ int shift_right = (kcontrol->private_value >> 19) & 0x07; ++ int mask = (kcontrol->private_value >> 24) & 0xff; ++ int invert = (kcontrol->private_value >> 22) & 1; ++ int change, retval; ++ unsigned short val1, val2; ++ ++ val1 = ucontrol->value.integer.value[0] & mask; ++ val2 = ucontrol->value.integer.value[1] & mask; ++ if (invert) { ++ val1 = mask - val1; ++ val2 = mask - val2; ++ } ++ val1 <<= shift_left; ++ val2 <<= shift_right; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; ++ val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; ++ change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg]; ++ write_reg(chip, left_reg, val1); ++ write_reg(chip, right_reg, val2); ++ ++ chip->image[left_reg] = val1; ++ chip->image[right_reg] = val2; ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return change; ++ ++out: ++ return retval; ++} ++ ++static int snd_at73c213_mono_switch_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = 1; ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_switch_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & 0x01; ++ ++ if (invert) ++ ucontrol->value.integer.value[0] = ++ (0x01 - ucontrol->value.integer.value[0]); ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_switch_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ unsigned long flags; ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ int change, retval; ++ unsigned short val; ++ ++ if (ucontrol->value.integer.value[0]) ++ val = mask; ++ else ++ val = 0; ++ ++ if (invert) ++ val = mask - val; ++ val <<= shift; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ ++ val |= (chip->image[reg] & ~(mask << shift)); ++ change = val != chip->image[reg]; ++ ++ write_reg(chip, reg, val); ++ ++ chip->image[reg] = val; ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ ++ return change; ++ ++out: ++ return retval; ++} ++ ++static int snd_at73c213_pa_volume_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = ((kcontrol->private_value >> 16) & 0xFF) - 1; ++ ++ return 0; ++} ++ ++static int snd_at73c213_line_capture_volume_info( ++ struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 2; ++ uinfo->value.integer.min = 14; ++ uinfo->value.integer.max = 31; ++ ++ return 0; ++} ++ ++static int snd_at73c213_aux_capture_volume_info( ++ struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 14; ++ uinfo->value.integer.max = 31; ++ ++ return 0; ++} ++ ++#define AT73C213_MONO(xname, xindex, reg, shift, mask, invert) \ ++{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ ++ .info = snd_at73c213_mono_info, \ ++ .get = snd_at73c213_mono_get, .put = snd_at73c213_mono_put, \ ++ .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } ++ ++#define AT73C213_MONO_SWITCH(xname, xindex, reg, shift, mask, invert) \ ++{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ ++ .info = snd_at73c213_mono_switch_info, \ ++ .get = snd_at73c213_mono_switch_get, .put = snd_at73c213_mono_switch_put, \ ++ .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } ++ ++#define AT73C213_STEREO(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \ ++{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ ++ .info = snd_at73c213_stereo_info, \ ++ .get = snd_at73c213_stereo_get, .put = snd_at73c213_stereo_put, \ ++ .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) } ++ ++static struct snd_kcontrol_new snd_at73c213_controls[] __devinitdata = { ++AT73C213_STEREO("Master Playback Volume", 0, DAC_LMPG, DAC_RMPG, 0, 0, 0x1F, 1), ++AT73C213_STEREO("Master Playback Switch", 0, DAC_LMPG, DAC_RMPG, 5, 5, 1, 1), ++AT73C213_STEREO("PCM Playback Volume", 0, DAC_LLOG, DAC_RLOG, 0, 0, 0x1F, 1), ++AT73C213_STEREO("PCM Playback Switch", 0, DAC_LLOG, DAC_RLOG, 5, 5, 1, 1), ++AT73C213_MONO_SWITCH("Mono PA Playback Switch", 0, DAC_CTRL, DAC_CTRL_ONPADRV, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "PA Playback Volume", ++ .index = 0, ++ .info = snd_at73c213_pa_volume_info, ++ .get = snd_at73c213_mono_get, ++ .put = snd_at73c213_mono_put, ++ .private_value = PA_CTRL|(PA_CTRL_APAGAIN<<8)|(0x0F<<16)|(1<<24), ++}, ++AT73C213_MONO_SWITCH("PA High Gain Playback Switch", 0, PA_CTRL, PA_CTRL_APALP, 0x01, 1), ++AT73C213_MONO_SWITCH("PA Playback Switch", 0, PA_CTRL, PA_CTRL_APAON, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "Aux Capture Volume", ++ .index = 0, ++ .info = snd_at73c213_aux_capture_volume_info, ++ .get = snd_at73c213_mono_get, ++ .put = snd_at73c213_mono_put, ++ .private_value = DAC_AUXG|(0<<8)|(0x1F<<16)|(1<<24), ++}, ++AT73C213_MONO_SWITCH("Aux Capture Switch", 0, DAC_CTRL, DAC_CTRL_ONAUXIN, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "Line Capture Volume", ++ .index = 0, ++ .info = snd_at73c213_line_capture_volume_info, ++ .get = snd_at73c213_stereo_get, ++ .put = snd_at73c213_stereo_put, ++ .private_value = DAC_LLIG|(DAC_RLIG<<8)|(0<<16)|(0<<19)|(0x1F<<24)|(1<<22), ++}, ++AT73C213_MONO_SWITCH("Line Capture Switch", 0, DAC_CTRL, 0, 0x03, 0), ++}; ++ ++static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip) ++{ ++ struct snd_card *card; ++ int errval, idx; ++ ++ if (chip == NULL || chip->pcm == NULL) ++ return -EINVAL; ++ ++ card = chip->card; ++ ++ strcpy(card->mixername, chip->pcm->name); ++ ++ for (idx = 0; idx < ARRAY_SIZE(snd_at73c213_controls); idx++) { ++ if ((errval = snd_ctl_add(card, ++ snd_ctl_new1(&snd_at73c213_controls[idx], ++ chip))) < 0) ++ return errval; ++ } ++ ++ return 0; ++} ++ ++/* ++ * Device functions ++ */ ++static int snd_at73c213_chip_init(struct snd_at73c213 *chip) ++{ ++ int retval; ++ unsigned char dac_ctrl = 0; ++ ++ /* XXX: Unmask the APB clock for SSC0 */ ++ __raw_writel(__raw_readl((void __iomem *)PM_BASE + PM_APBAMASK)|(1<<7), ++ (void __iomem *)PM_BASE + PM_APBAMASK); ++ ++ /* Wait for clock to be stable */ ++ msleep(10); ++ ++ retval = snd_at73c213_set_bitrate_and_div(); ++ if (retval) ++ goto out; ++ ++ /* Reset the SSC */ ++ __raw_writel(SSC_CR_SWRST, chip->regs + SSC_CR); ++ ++ /* Enable GCLK0 */ ++ __raw_writel((1<<30), (void __iomem *)(PIOA_BASE + PIO_PDR)); ++ __raw_writel((1<<30), (void __iomem *)(PIOA_BASE + PIO_ASR)); ++ __raw_writel(((gclk_div<<8)|0x10|0x04|0x02), (void __iomem *)(PM_BASE + PM_GCCTRL)); ++ ++ /* Enable SSC and setup for I2S */ ++ __raw_writel(ssc_div, chip->regs + SSC_CMR); ++ ++ /* CKO, START, STTDLY, PERIOD */ ++ __raw_writel((1<<2)|(4<<8)|(1<<16)|(15<<24), chip->regs + SSC_TCMR); ++ ++ /* DATLEN, MSBF, DATNB, FSLEN, FSOS */ ++ __raw_writel((15<<0)|(1<<7)|(1<<8)|(15<<16)|(1<<20), chip->regs + SSC_TFMR); ++ ++ /* Initialize at73c213 on SPI bus */ ++ /* Reset the device */ ++ write_reg(chip, DAC_RST, 0x04); ++ msleep(1); ++ write_reg(chip, DAC_RST, 0x03); ++ ++ /* Turn on precharge */ ++ write_reg(chip, DAC_PRECH, 0xFF); ++ write_reg(chip, PA_CTRL, (1<<PA_CTRL_APAPRECH)); ++ write_reg(chip, DAC_CTRL, (1<<DAC_CTRL_ONLNOL)|(1<<DAC_CTRL_ONLNOR)); ++ ++ msleep(50); ++ ++ /* Stop precharging PA */ ++ write_reg(chip, PA_CTRL, (1<<PA_CTRL_APALP)|0x0F); ++ chip->image[PA_CTRL] = (1<<PA_CTRL_APALP)|0x0F; ++ ++ msleep(450); ++ ++ /* Stop precharging, turn on master power */ ++ write_reg(chip, DAC_PRECH, (1<<DAC_PRECH_ONMSTR)); ++ chip->image[DAC_PRECH] = (1<<DAC_PRECH_ONMSTR); ++ ++ msleep(1); ++ ++ /* Turn on DAC */ ++ dac_ctrl = (1<<DAC_CTRL_ONDACL)|(1<<DAC_CTRL_ONDACR)| ++ (1<<DAC_CTRL_ONLNOL)|(1<<DAC_CTRL_ONLNOR); ++ ++ write_reg(chip, DAC_CTRL, dac_ctrl); ++ chip->image[DAC_CTRL] = dac_ctrl; ++ ++ /* Mute sound */ ++ write_reg(chip, DAC_LMPG, 0x3F); ++ chip->image[DAC_LMPG] = 0x3F; ++ write_reg(chip, DAC_RMPG, 0x3F); ++ chip->image[DAC_RMPG] = 0x3F; ++ write_reg(chip, DAC_LLOG, 0x3F); ++ chip->image[DAC_LLOG] = 0x3F; ++ write_reg(chip, DAC_RLOG, 0x3F); ++ chip->image[DAC_RLOG] = 0x3F; ++ write_reg(chip, DAC_LLIG, 0x11); ++ chip->image[DAC_LLIG] = 0x11; ++ write_reg(chip, DAC_RLIG, 0x11); ++ chip->image[DAC_RLIG] = 0x11; ++ write_reg(chip, DAC_AUXG, 0x11); ++ chip->image[DAC_AUXG] = 0x11; ++ ++ /* Turn on SSC transmitter */ ++ __raw_writel(SSC_CR_TXEN, chip->regs + SSC_CR); ++ ++out: ++ return retval; ++} ++ ++static int snd_at73c213_dev_free(snd_device_t *device) ++{ ++ struct snd_at73c213 *chip = device->device_data; ++ ++ if (chip->regs) { ++ __raw_writel(SSC_CR_TXDIS, chip->regs + SSC_CR); ++ iounmap(chip->regs); ++ } ++ ++ if (chip->irq >= 0) ++ free_irq(chip->irq, chip); ++ ++ if (chip->ssc_clk) { ++ clk_disable(chip->ssc_clk); ++ clk_put(chip->ssc_clk); ++ } ++ ++ return 0; ++} ++ ++static int __devinit snd_at73c213_create(snd_card_t *card, ++ struct platform_device *pdev) ++{ ++ static snd_device_ops_t ops = { ++ .dev_free = snd_at73c213_dev_free, ++ }; ++ struct snd_at73c213 *chip = get_chip(card); ++ struct resource *regs; ++ struct clk *ssc_clk; ++ int irq, retval; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) ++ return irq; ++ ++ ssc_clk = clk_get(&pdev->dev, "mck"); ++ if (IS_ERR(ssc_clk)) ++ return PTR_ERR(ssc_clk); ++ clk_enable(ssc_clk); ++ chip->ssc_clk = ssc_clk; ++ ++ spin_lock_init(&chip->lock); ++ chip->card = card; ++ chip->pdev = pdev; ++ chip->irq = -1; ++ ++ retval = -ENOMEM; ++ ++ retval = spi_setup(chip->spi); ++ if (retval) ++ goto out; ++ ++ chip->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!chip->regs) ++ goto out; ++ ++ retval = request_irq(irq, snd_at73c213_interrupt, 0, "at73c213", chip); ++ if (retval) { ++ snd_printk("unable to request IRQ%d\n", irq); ++ goto out; ++ } ++ chip->irq = irq; ++ ++ memcpy(&chip->image, &snd_at73c213_original_image, ++ sizeof(snd_at73c213_original_image)); ++ ++ retval = snd_at73c213_chip_init(chip); ++ if (retval) ++ goto out; ++ ++ retval = snd_at73c213_new_pcm(chip, 0); ++ if (retval) ++ goto out; ++ ++ retval = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); ++ if (retval) ++ goto out; ++ ++ retval = snd_at73c213_mixer(chip); ++ if (retval) ++ goto out; ++ ++ snd_card_set_dev(card, &pdev->dev); ++ ++out: ++ return retval; ++} ++ ++static int __devinit snd_at73c213_probe(struct platform_device *pdev) ++{ ++ static int dev; ++ struct spi_board_info *binfo; ++ struct spi_master *smaster; ++ struct snd_at73c213 *chip; ++ snd_card_t *card; ++ int retval; ++ ++ if (dev >= SNDRV_CARDS) ++ return -ENODEV; ++ if (!enable[dev]) { ++ dev++; ++ return -ENOENT; ++ } ++ ++ if (spi < 0 || ssc < 0) ++ return -ENODEV; ++ ++ retval = -ENOMEM; ++ card = snd_card_new(index[dev], id[dev], THIS_MODULE, ++ sizeof(struct snd_at73c213)); ++ if (!card) ++ goto out; ++ ++ chip = card->private_data; ++ ++ retval = -ENODEV; ++ ++ /* Get the SPI bus */ ++ binfo = pdev->dev.platform_data; ++ if (!binfo) { ++ printk(KERN_WARNING "at73c213: could not get platform data\n"); ++ goto out; ++ } ++ ++ smaster = spi_busnum_to_master(spi); ++ if (!smaster) { ++ request_module("spi1"); ++ smaster = spi_busnum_to_master(spi); ++ if (!smaster) { ++ printk(KERN_WARNING ++ "at73c213: could not get " ++ "SPI bus %d, remembered to load " ++ "the spi_atmel module?\n", spi); ++ goto out; ++ } ++ } ++ ++ chip->spi = spi_new_device(smaster, binfo); ++ if (!chip->spi) { ++ printk(KERN_WARNING "at73c213: could not get SPI device %d\n", spi); ++ goto out; ++ } ++ ++ chip->spi->mode = SPI_MODE_1; ++ chip->spi->bits_per_word = 8; ++ ++ retval = snd_at73c213_create(card, pdev); ++ if (retval) ++ goto out_free_card; ++ ++ strcpy(card->driver, "at73c213"); ++ strcpy(card->shortname, "at73c213 (AVR32 STK1000)"); ++ sprintf(card->longname, "%s at %p (irq %i)", card->shortname, chip->regs, chip->irq); ++ ++ retval = snd_card_register(card); ++ if (retval) ++ goto out_free_card; ++ ++ platform_set_drvdata(pdev, card); ++ dev++; ++ return 0; ++ ++out_free_card: ++ snd_card_free(card); ++out: ++ return retval; ++} ++ ++static int __devexit snd_at73c213_remove(struct platform_device *pdev) ++{ ++ struct snd_card *card = platform_get_drvdata(pdev); ++ struct snd_at73c213 *chip = card->private_data; ++ int retval; ++ ++ /* Stop playback */ ++ __raw_writel(SSC_CR_TXDIS, chip->regs + SSC_CR); ++ ++ /* Stop GLCK0 */ ++ __raw_writel(0, (void __iomem *)PM_BASE + PM_GCCTRL); ++ ++ /* Mute sound */ ++ write_reg(chip, DAC_LMPG, 0x3F); ++ chip->image[DAC_LMPG] = 0x3F; ++ write_reg(chip, DAC_RMPG, 0x3F); ++ chip->image[DAC_RMPG] = 0x3F; ++ write_reg(chip, DAC_LLOG, 0x3F); ++ chip->image[DAC_LLOG] = 0x3F; ++ write_reg(chip, DAC_RLOG, 0x3F); ++ chip->image[DAC_RLOG] = 0x3F; ++ write_reg(chip, DAC_LLIG, 0x11); ++ chip->image[DAC_LLIG] = 0x11; ++ write_reg(chip, DAC_RLIG, 0x11); ++ chip->image[DAC_RLIG] = 0x11; ++ write_reg(chip, DAC_AUXG, 0x11); ++ chip->image[DAC_AUXG] = 0x11; ++ ++ /* Turn off PA */ ++ write_reg(chip, PA_CTRL, (chip->image[PA_CTRL]|0x0F)); ++ chip->image[PA_CTRL] |= 0x0F; ++ msleep(10); ++ write_reg(chip, PA_CTRL, (1<<PA_CTRL_APALP)|0x0F); ++ chip->image[PA_CTRL] = (1<<PA_CTRL_APALP)|0x0F; ++ ++ /* Turn off external DAC */ ++ write_reg(chip, DAC_CTRL, 0x0C); ++ chip->image[DAC_CTRL] = 0x0C; ++ msleep(2); ++ write_reg(chip, DAC_CTRL, 0x00); ++ chip->image[DAC_CTRL] = 0x00; ++ ++ /* Turn off master power */ ++ write_reg(chip, DAC_PRECH, 0x00); ++ chip->image[DAC_PRECH] = 0x00; ++ ++ msleep(10); ++ ++out: ++ if (chip->spi) ++ spi_unregister_device(chip->spi); ++ ++ if (card) { ++ snd_card_free(card); ++ platform_set_drvdata(pdev, NULL); ++ } ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int snd_at73c213_suspend(struct platform_device *pdev, pm_message_t state, u32 level) ++{ ++ struct snd_card *card = at32_get_drvdata(pdev); ++ struct snd_at73c213 *chip = card->private_data; ++ ++ printk(KERN_DEBUG "at73c213: suspending\n"); ++ ++ /* Stop SSC and GCLK0 */ ++ ++ spi_suspend(chip->spi, state); ++ ++ return 0; ++} ++ ++static int snd_at73c213_resume(struct platform_device *pdev, u32 level) ++{ ++ struct snd_card *card = at32_get_drvdata(pdev); ++ struct snd_at73c213 *chip = card->private_data; ++ ++ printk(KERN_DEBUG "at73c213: resuming\n"); ++ ++ /* Start GLCK0 and SSC */ ++ ++ spi_resume(chip->spi); ++ ++ return 0; ++} ++#endif /* CONFIG_PM */ ++ ++/* Driver core initialization */ ++static struct platform_driver at73c213_driver = { ++ .probe = snd_at73c213_probe, ++ .remove = __devexit_p(snd_at73c213_remove), ++ .driver = { ++ .name = "at73c213", ++ } ++#ifdef CONFIG_PM ++ .resume = snd_at73c213_resume, ++ .suspend = snd_at73c213_suspend, ++#endif ++}; ++ ++static int __init at73c213_init(void) ++{ ++ return platform_driver_register(&at73c213_driver); ++} ++ ++static void __exit at73c213_exit(void) ++{ ++ platform_driver_unregister(&at73c213_driver); ++} ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("Sound driver for at73c213 on STK1000"); ++MODULE_LICENSE("GPL"); ++ ++module_init(at73c213_init); ++module_exit(at73c213_exit); ++ +Index: linux-2.6.18-avr32/sound/avr32/at73c213.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.18-avr32/sound/avr32/at73c213.h 2006-11-02 15:56:20.000000000 +0100 +@@ -0,0 +1,120 @@ ++/* ++ * Driver for the AT73C213 16-bit stereo DAC on Atmel ATSTK1000 ++ * ++ * Copyright (C) 2006 Atmel Norway ++ * ++ * 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. ++ * ++ * The full GNU General Public License is included in this ++ * distribution in the file called COPYING. ++ */ ++ ++#ifndef _SND_AT73C213_MIXER_H_ ++#define _SND_AT73C213_MIXER_H_ ++ ++/* DAC control register */ ++#define DAC_CTRL 0x00 ++#define DAC_CTRL_ONPADRV 7 ++#define DAC_CTRL_ONAUXIN 6 ++#define DAC_CTRL_ONDACR 5 ++#define DAC_CTRL_ONDACL 4 ++#define DAC_CTRL_ONLNOR 3 ++#define DAC_CTRL_ONLNOL 2 ++#define DAC_CTRL_ONLNIR 1 ++#define DAC_CTRL_ONLNIL 0 ++ ++/* DAC left line in gain register */ ++#define DAC_LLIG 0x01 ++#define DAC_LLIG_LLIG 0 ++ ++/* DAC right line in gain register */ ++#define DAC_RLIG 0x02 ++#define DAC_RLIG_RLIG 0 ++ ++/* DAC Left Master Playback Gain Register */ ++#define DAC_LMPG 0x03 ++#define DAC_LMPG_LMPG 0 ++ ++/* DAC Right Master Playback Gain Register */ ++#define DAC_RMPG 0x04 ++#define DAC_RMPG_RMPG 0 ++ ++/* DAC Left Line Out Gain Register */ ++#define DAC_LLOG 0x05 ++#define DAC_LLOG_LLOG 0 ++ ++/* DAC Right Line Out Gain Register */ ++#define DAC_RLOG 0x06 ++#define DAC_RLOG_RLOG 0 ++ ++/* DAC Output Level Control Register */ ++#define DAC_OLC 0x07 ++#define DAC_OLC_RSHORT 7 ++#define DAC_OLC_ROLC 4 ++#define DAC_OLC_LSHORT 3 ++#define DAC_OLC_LOLC 0 ++ ++/* DAC Mixer Control Register */ ++#define DAC_MC 0x08 ++#define DAC_MC_INVR 5 ++#define DAC_MC_INVL 4 ++#define DAC_MC_RMSMIN2 3 ++#define DAC_MC_RMSMIN1 2 ++#define DAC_MC_LMSMIN2 1 ++#define DAC_MC_LMSMIN1 0 ++ ++/* DAC Clock and Sampling Frequency Control Register */ ++#define DAC_CSFC 0x09 ++#define DAC_CSFC_OVRSEL 4 ++ ++/* DAC Miscellaneous Register */ ++#define DAC_MISC 0x0A ++#define DAC_MISC_VCMCAPSEL 7 ++#define DAC_MISC_DINTSEL 4 ++#define DAC_MISC_DITHEN 3 ++#define DAC_MISC_DEEMPEN 2 ++#define DAC_MISC_NBITS 0 ++ ++/* DAC Precharge Control Register */ ++#define DAC_PRECH 0x0C ++#define DAC_PRECH_PRCHGPDRV 7 ++#define DAC_PRECH_PRCHGAUX1 6 ++#define DAC_PRECH_PRCHGLNOR 5 ++#define DAC_PRECH_PRCHGLNOL 4 ++#define DAC_PRECH_PRCHGLNIR 3 ++#define DAC_PRECH_PRCHGLNIL 2 ++#define DAC_PRECH_PRCHG 1 ++#define DAC_PRECH_ONMSTR 0 ++ ++/* DAC Auxiliary Input Gain Control Register */ ++#define DAC_AUXG 0x0D ++#define DAC_AUXG_AUXG 0 ++ ++/* DAC Reset Register */ ++#define DAC_RST 0x10 ++#define DAC_RST_RESMASK 2 ++#define DAC_RST_RESFILZ 1 ++#define DAC_RST_RSTZ 0 ++ ++/* Power Amplifier Control Register */ ++#define PA_CTRL 0x11 ++#define PA_CTRL_APAON 6 ++#define PA_CTRL_APAPRECH 5 ++#define PA_CTRL_APALP 4 ++#define PA_CTRL_APAGAIN 0 ++ ++#endif ++ |