diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/lx6464es/lx6464es.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/lx6464es/lx6464es.c | 1164 |
1 files changed, 0 insertions, 1164 deletions
diff --git a/ANDROID_3.4.5/sound/pci/lx6464es/lx6464es.c b/ANDROID_3.4.5/sound/pci/lx6464es/lx6464es.c deleted file mode 100644 index d94c0c29..00000000 --- a/ANDROID_3.4.5/sound/pci/lx6464es/lx6464es.c +++ /dev/null @@ -1,1164 +0,0 @@ -/* -*- linux-c -*- * - * - * ALSA driver for the digigram lx6464es interface - * - * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org> - * - * - * 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; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/slab.h> - -#include <sound/initval.h> -#include <sound/control.h> -#include <sound/info.h> - -#include "lx6464es.h" - -MODULE_AUTHOR("Tim Blechmann"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("digigram lx6464es"); -MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}"); - - -static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; -static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; -static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); - -static const char card_name[] = "LX6464ES"; - - -#define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 - -static DEFINE_PCI_DEVICE_TABLE(snd_lx6464es_ids) = { - { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), - .subvendor = PCI_VENDOR_ID_DIGIGRAM, - .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM - }, /* LX6464ES */ - { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), - .subvendor = PCI_VENDOR_ID_DIGIGRAM, - .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM - }, /* LX6464ES-CAE */ - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); - - - -/* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ -#define CHIPSC_RESET_XILINX (1L<<16) - - -/* alsa callbacks */ -static struct snd_pcm_hardware lx_caps = { - .info = (SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_SYNC_START), - .formats = (SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_S16_BE | - SNDRV_PCM_FMTBIT_S24_3LE | - SNDRV_PCM_FMTBIT_S24_3BE), - .rates = (SNDRV_PCM_RATE_CONTINUOUS | - SNDRV_PCM_RATE_8000_192000), - .rate_min = 8000, - .rate_max = 192000, - .channels_min = 2, - .channels_max = 64, - .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, - .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), - .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), - .periods_min = 2, - .periods_max = MAX_STREAM_BUFFER, -}; - -static int lx_set_granularity(struct lx6464es *chip, u32 gran); - - -static int lx_hardware_open(struct lx6464es *chip, - struct snd_pcm_substream *substream) -{ - int err = 0; - struct snd_pcm_runtime *runtime = substream->runtime; - int channels = runtime->channels; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_pcm_uframes_t period_size = runtime->period_size; - - snd_printd(LXP "allocating pipe for %d channels\n", channels); - err = lx_pipe_allocate(chip, 0, is_capture, channels); - if (err < 0) { - snd_printk(KERN_ERR LXP "allocating pipe failed\n"); - return err; - } - - err = lx_set_granularity(chip, period_size); - if (err < 0) { - snd_printk(KERN_ERR LXP "setting granularity to %ld failed\n", - period_size); - return err; - } - - return 0; -} - -static int lx_hardware_start(struct lx6464es *chip, - struct snd_pcm_substream *substream) -{ - int err = 0; - struct snd_pcm_runtime *runtime = substream->runtime; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_printd(LXP "setting stream format\n"); - err = lx_stream_set_format(chip, runtime, 0, is_capture); - if (err < 0) { - snd_printk(KERN_ERR LXP "setting stream format failed\n"); - return err; - } - - snd_printd(LXP "starting pipe\n"); - err = lx_pipe_start(chip, 0, is_capture); - if (err < 0) { - snd_printk(KERN_ERR LXP "starting pipe failed\n"); - return err; - } - - snd_printd(LXP "waiting for pipe to start\n"); - err = lx_pipe_wait_for_start(chip, 0, is_capture); - if (err < 0) { - snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); - return err; - } - - return err; -} - - -static int lx_hardware_stop(struct lx6464es *chip, - struct snd_pcm_substream *substream) -{ - int err = 0; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_printd(LXP "pausing pipe\n"); - err = lx_pipe_pause(chip, 0, is_capture); - if (err < 0) { - snd_printk(KERN_ERR LXP "pausing pipe failed\n"); - return err; - } - - snd_printd(LXP "waiting for pipe to become idle\n"); - err = lx_pipe_wait_for_idle(chip, 0, is_capture); - if (err < 0) { - snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); - return err; - } - - snd_printd(LXP "stopping pipe\n"); - err = lx_pipe_stop(chip, 0, is_capture); - if (err < 0) { - snd_printk(LXP "stopping pipe failed\n"); - return err; - } - - return err; -} - - -static int lx_hardware_close(struct lx6464es *chip, - struct snd_pcm_substream *substream) -{ - int err = 0; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_printd(LXP "releasing pipe\n"); - err = lx_pipe_release(chip, 0, is_capture); - if (err < 0) { - snd_printk(LXP "releasing pipe failed\n"); - return err; - } - - return err; -} - - -static int lx_pcm_open(struct snd_pcm_substream *substream) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - int err = 0; - int board_rate; - - snd_printdd("->lx_pcm_open\n"); - mutex_lock(&chip->setup_mutex); - - /* copy the struct snd_pcm_hardware struct */ - runtime->hw = lx_caps; - -#if 0 - /* buffer-size should better be multiple of period-size */ - err = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (err < 0) { - snd_printk(KERN_WARNING LXP "could not constrain periods\n"); - goto exit; - } -#endif - - /* the clock rate cannot be changed */ - board_rate = chip->board_sample_rate; - err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, - board_rate, board_rate); - - if (err < 0) { - snd_printk(KERN_WARNING LXP "could not constrain periods\n"); - goto exit; - } - - /* constrain period size */ - err = snd_pcm_hw_constraint_minmax(runtime, - SNDRV_PCM_HW_PARAM_PERIOD_SIZE, - MICROBLAZE_IBL_MIN, - MICROBLAZE_IBL_MAX); - if (err < 0) { - snd_printk(KERN_WARNING LXP - "could not constrain period size\n"); - goto exit; - } - - snd_pcm_hw_constraint_step(runtime, 0, - SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); - - snd_pcm_set_sync(substream); - err = 0; - -exit: - runtime->private_data = chip; - - mutex_unlock(&chip->setup_mutex); - snd_printdd("<-lx_pcm_open, %d\n", err); - return err; -} - -static int lx_pcm_close(struct snd_pcm_substream *substream) -{ - int err = 0; - snd_printdd("->lx_pcm_close\n"); - return err; -} - -static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream - *substream) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - snd_pcm_uframes_t pos; - unsigned long flags; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : - &chip->playback_stream; - - snd_printdd("->lx_pcm_stream_pointer\n"); - - spin_lock_irqsave(&chip->lock, flags); - pos = lx_stream->frame_pos * substream->runtime->period_size; - spin_unlock_irqrestore(&chip->lock, flags); - - snd_printdd(LXP "stream_pointer at %ld\n", pos); - return pos; -} - -static int lx_pcm_prepare(struct snd_pcm_substream *substream) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - int err = 0; - const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_printdd("->lx_pcm_prepare\n"); - - mutex_lock(&chip->setup_mutex); - - if (chip->hardware_running[is_capture]) { - err = lx_hardware_stop(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to stop hardware. " - "Error code %d\n", err); - goto exit; - } - - err = lx_hardware_close(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to close hardware. " - "Error code %d\n", err); - goto exit; - } - } - - snd_printd(LXP "opening hardware\n"); - err = lx_hardware_open(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to open hardware. " - "Error code %d\n", err); - goto exit; - } - - err = lx_hardware_start(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to start hardware. " - "Error code %d\n", err); - goto exit; - } - - chip->hardware_running[is_capture] = 1; - - if (chip->board_sample_rate != substream->runtime->rate) { - if (!err) - chip->board_sample_rate = substream->runtime->rate; - } - -exit: - mutex_unlock(&chip->setup_mutex); - return err; -} - -static int lx_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params, int is_capture) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - int err = 0; - - snd_printdd("->lx_pcm_hw_params\n"); - - mutex_lock(&chip->setup_mutex); - - /* set dma buffer */ - err = snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); - - if (is_capture) - chip->capture_stream.stream = substream; - else - chip->playback_stream.stream = substream; - - mutex_unlock(&chip->setup_mutex); - return err; -} - -static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - return lx_pcm_hw_params(substream, hw_params, 0); -} - -static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - return lx_pcm_hw_params(substream, hw_params, 1); -} - -static int lx_pcm_hw_free(struct snd_pcm_substream *substream) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - int err = 0; - int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - - snd_printdd("->lx_pcm_hw_free\n"); - mutex_lock(&chip->setup_mutex); - - if (chip->hardware_running[is_capture]) { - err = lx_hardware_stop(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to stop hardware. " - "Error code %d\n", err); - goto exit; - } - - err = lx_hardware_close(chip, substream); - if (err < 0) { - snd_printk(KERN_ERR LXP "failed to close hardware. " - "Error code %d\n", err); - goto exit; - } - - chip->hardware_running[is_capture] = 0; - } - - err = snd_pcm_lib_free_pages(substream); - - if (is_capture) - chip->capture_stream.stream = 0; - else - chip->playback_stream.stream = 0; - -exit: - mutex_unlock(&chip->setup_mutex); - return err; -} - -static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) -{ - struct snd_pcm_substream *substream = lx_stream->stream; - const unsigned int is_capture = lx_stream->is_capture; - - int err; - - const u32 channels = substream->runtime->channels; - const u32 bytes_per_frame = channels * 3; - const u32 period_size = substream->runtime->period_size; - const u32 periods = substream->runtime->periods; - const u32 period_bytes = period_size * bytes_per_frame; - - dma_addr_t buf = substream->dma_buffer.addr; - int i; - - u32 needed, freed; - u32 size_array[5]; - - for (i = 0; i != periods; ++i) { - u32 buffer_index = 0; - - err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, - size_array); - snd_printdd(LXP "starting: needed %d, freed %d\n", - needed, freed); - - err = lx_buffer_give(chip, 0, is_capture, period_bytes, - lower_32_bits(buf), upper_32_bits(buf), - &buffer_index); - - snd_printdd(LXP "starting: buffer index %x on %p (%d bytes)\n", - buffer_index, (void *)buf, period_bytes); - buf += period_bytes; - } - - err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); - snd_printdd(LXP "starting: needed %d, freed %d\n", needed, freed); - - snd_printd(LXP "starting: starting stream\n"); - err = lx_stream_start(chip, 0, is_capture); - if (err < 0) - snd_printk(KERN_ERR LXP "couldn't start stream\n"); - else - lx_stream->status = LX_STREAM_STATUS_RUNNING; - - lx_stream->frame_pos = 0; -} - -static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) -{ - const unsigned int is_capture = lx_stream->is_capture; - int err; - - snd_printd(LXP "stopping: stopping stream\n"); - err = lx_stream_stop(chip, 0, is_capture); - if (err < 0) - snd_printk(KERN_ERR LXP "couldn't stop stream\n"); - else - lx_stream->status = LX_STREAM_STATUS_FREE; - -} - -static void lx_trigger_tasklet_dispatch_stream(struct lx6464es *chip, - struct lx_stream *lx_stream) -{ - switch (lx_stream->status) { - case LX_STREAM_STATUS_SCHEDULE_RUN: - lx_trigger_start(chip, lx_stream); - break; - - case LX_STREAM_STATUS_SCHEDULE_STOP: - lx_trigger_stop(chip, lx_stream); - break; - - default: - break; - } -} - -static void lx_trigger_tasklet(unsigned long data) -{ - struct lx6464es *chip = (struct lx6464es *)data; - unsigned long flags; - - snd_printdd("->lx_trigger_tasklet\n"); - - spin_lock_irqsave(&chip->lock, flags); - lx_trigger_tasklet_dispatch_stream(chip, &chip->capture_stream); - lx_trigger_tasklet_dispatch_stream(chip, &chip->playback_stream); - spin_unlock_irqrestore(&chip->lock, flags); -} - -static int lx_pcm_trigger_dispatch(struct lx6464es *chip, - struct lx_stream *lx_stream, int cmd) -{ - int err = 0; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; - break; - - case SNDRV_PCM_TRIGGER_STOP: - lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; - break; - - default: - err = -EINVAL; - goto exit; - } - tasklet_schedule(&chip->trigger_tasklet); - -exit: - return err; -} - - -static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct lx6464es *chip = snd_pcm_substream_chip(substream); - const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); - struct lx_stream *stream = is_capture ? &chip->capture_stream : - &chip->playback_stream; - - snd_printdd("->lx_pcm_trigger\n"); - - return lx_pcm_trigger_dispatch(chip, stream, cmd); -} - -static int snd_lx6464es_free(struct lx6464es *chip) -{ - snd_printdd("->snd_lx6464es_free\n"); - - lx_irq_disable(chip); - - if (chip->irq >= 0) - free_irq(chip->irq, chip); - - iounmap(chip->port_dsp_bar); - ioport_unmap(chip->port_plx_remapped); - - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - - kfree(chip); - - return 0; -} - -static int snd_lx6464es_dev_free(struct snd_device *device) -{ - return snd_lx6464es_free(device->device_data); -} - -/* reset the dsp during initialization */ -static int __devinit lx_init_xilinx_reset(struct lx6464es *chip) -{ - int i; - u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); - - snd_printdd("->lx_init_xilinx_reset\n"); - - /* activate reset of xilinx */ - plx_reg &= ~CHIPSC_RESET_XILINX; - - lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); - msleep(1); - - lx_plx_reg_write(chip, ePLX_MBOX3, 0); - msleep(1); - - plx_reg |= CHIPSC_RESET_XILINX; - lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); - - /* deactivate reset of xilinx */ - for (i = 0; i != 100; ++i) { - u32 reg_mbox3; - msleep(10); - reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); - if (reg_mbox3) { - snd_printd(LXP "xilinx reset done\n"); - snd_printdd(LXP "xilinx took %d loops\n", i); - break; - } - } - - /* todo: add some error handling? */ - - /* clear mr */ - lx_dsp_reg_write(chip, eReg_CSM, 0); - - /* le xilinx ES peut ne pas etre encore pret, on attend. */ - msleep(600); - - return 0; -} - -static int __devinit lx_init_xilinx_test(struct lx6464es *chip) -{ - u32 reg; - - snd_printdd("->lx_init_xilinx_test\n"); - - /* TEST if we have access to Xilinx/MicroBlaze */ - lx_dsp_reg_write(chip, eReg_CSM, 0); - - reg = lx_dsp_reg_read(chip, eReg_CSM); - - if (reg) { - snd_printk(KERN_ERR LXP "Problem: Reg_CSM %x.\n", reg); - - /* PCI9056_SPACE0_REMAP */ - lx_plx_reg_write(chip, ePLX_PCICR, 1); - - reg = lx_dsp_reg_read(chip, eReg_CSM); - if (reg) { - snd_printk(KERN_ERR LXP "Error: Reg_CSM %x.\n", reg); - return -EAGAIN; /* seems to be appropriate */ - } - } - - snd_printd(LXP "Xilinx/MicroBlaze access test successful\n"); - - return 0; -} - -/* initialize ethersound */ -static int __devinit lx_init_ethersound_config(struct lx6464es *chip) -{ - int i; - u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); - - /* configure 64 io channels */ - u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | - (64 << IOCR_INPUTS_OFFSET) | - (64 << IOCR_OUTPUTS_OFFSET) | - (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); - - snd_printdd("->lx_init_ethersound\n"); - - chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; - - /* - * write it to the card ! - * this actually kicks the ES xilinx, the first time since poweron. - * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers - * is not ready before this is done, and the bit 2 in Reg_CSES is set. - * */ - lx_dsp_reg_write(chip, eReg_CONFES, conf_es); - - for (i = 0; i != 1000; ++i) { - if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { - snd_printd(LXP "ethersound initialized after %dms\n", - i); - goto ethersound_initialized; - } - msleep(1); - } - snd_printk(KERN_WARNING LXP - "ethersound could not be initialized after %dms\n", i); - return -ETIMEDOUT; - - ethersound_initialized: - snd_printd(LXP "ethersound initialized\n"); - return 0; -} - -static int __devinit lx_init_get_version_features(struct lx6464es *chip) -{ - u32 dsp_version; - - int err; - - snd_printdd("->lx_init_get_version_features\n"); - - err = lx_dsp_get_version(chip, &dsp_version); - - if (err == 0) { - u32 freq; - - snd_printk(LXP "DSP version: V%02d.%02d #%d\n", - (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, - dsp_version & 0xff); - - /* later: what firmware version do we expect? */ - - /* retrieve Play/Rec features */ - /* done here because we may have to handle alternate - * DSP files. */ - /* later */ - - /* init the EtherSound sample rate */ - err = lx_dsp_get_clock_frequency(chip, &freq); - if (err == 0) - chip->board_sample_rate = freq; - snd_printd(LXP "actual clock frequency %d\n", freq); - } else { - snd_printk(KERN_ERR LXP "DSP corrupted \n"); - err = -EAGAIN; - } - - return err; -} - -static int lx_set_granularity(struct lx6464es *chip, u32 gran) -{ - int err = 0; - u32 snapped_gran = MICROBLAZE_IBL_MIN; - - snd_printdd("->lx_set_granularity\n"); - - /* blocksize is a power of 2 */ - while ((snapped_gran < gran) && - (snapped_gran < MICROBLAZE_IBL_MAX)) { - snapped_gran *= 2; - } - - if (snapped_gran == chip->pcm_granularity) - return 0; - - err = lx_dsp_set_granularity(chip, snapped_gran); - if (err < 0) { - snd_printk(KERN_WARNING LXP "could not set granularity\n"); - err = -EAGAIN; - } - - if (snapped_gran != gran) - snd_printk(LXP "snapped blocksize to %d\n", snapped_gran); - - snd_printd(LXP "set blocksize on board %d\n", snapped_gran); - chip->pcm_granularity = snapped_gran; - - return err; -} - -/* initialize and test the xilinx dsp chip */ -static int __devinit lx_init_dsp(struct lx6464es *chip) -{ - int err; - int i; - - snd_printdd("->lx_init_dsp\n"); - - snd_printd(LXP "initialize board\n"); - err = lx_init_xilinx_reset(chip); - if (err) - return err; - - snd_printd(LXP "testing board\n"); - err = lx_init_xilinx_test(chip); - if (err) - return err; - - snd_printd(LXP "initialize ethersound configuration\n"); - err = lx_init_ethersound_config(chip); - if (err) - return err; - - lx_irq_enable(chip); - - /** \todo the mac address should be ready by not, but it isn't, - * so we wait for it */ - for (i = 0; i != 1000; ++i) { - err = lx_dsp_get_mac(chip); - if (err) - return err; - if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || - chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) - goto mac_ready; - msleep(1); - } - return -ETIMEDOUT; - -mac_ready: - snd_printd(LXP "mac address ready read after: %dms\n", i); - snd_printk(LXP "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", - chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], - chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); - - err = lx_init_get_version_features(chip); - if (err) - return err; - - lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); - - chip->playback_mute = 0; - - return err; -} - -static struct snd_pcm_ops lx_ops_playback = { - .open = lx_pcm_open, - .close = lx_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .prepare = lx_pcm_prepare, - .hw_params = lx_pcm_hw_params_playback, - .hw_free = lx_pcm_hw_free, - .trigger = lx_pcm_trigger, - .pointer = lx_pcm_stream_pointer, -}; - -static struct snd_pcm_ops lx_ops_capture = { - .open = lx_pcm_open, - .close = lx_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .prepare = lx_pcm_prepare, - .hw_params = lx_pcm_hw_params_capture, - .hw_free = lx_pcm_hw_free, - .trigger = lx_pcm_trigger, - .pointer = lx_pcm_stream_pointer, -}; - -static int __devinit lx_pcm_create(struct lx6464es *chip) -{ - int err; - struct snd_pcm *pcm; - - u32 size = 64 * /* channels */ - 3 * /* 24 bit samples */ - MAX_STREAM_BUFFER * /* periods */ - MICROBLAZE_IBL_MAX * /* frames per period */ - 2; /* duplex */ - - size = PAGE_ALIGN(size); - - /* hardcoded device name & channel count */ - err = snd_pcm_new(chip->card, (char *)card_name, 0, - 1, 1, &pcm); - - pcm->private_data = chip; - - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); - - pcm->info_flags = 0; - strcpy(pcm->name, card_name); - - err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - snd_dma_pci_data(chip->pci), - size, size); - if (err < 0) - return err; - - chip->pcm = pcm; - chip->capture_stream.is_capture = 1; - - return 0; -} - -static int lx_control_playback_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 lx_control_playback_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct lx6464es *chip = snd_kcontrol_chip(kcontrol); - ucontrol->value.integer.value[0] = chip->playback_mute; - return 0; -} - -static int lx_control_playback_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct lx6464es *chip = snd_kcontrol_chip(kcontrol); - int changed = 0; - int current_value = chip->playback_mute; - - if (current_value != ucontrol->value.integer.value[0]) { - lx_level_unmute(chip, 0, !current_value); - chip->playback_mute = !current_value; - changed = 1; - } - return changed; -} - -static struct snd_kcontrol_new lx_control_playback_switch __devinitdata = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Switch", - .index = 0, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, - .private_value = 0, - .info = lx_control_playback_info, - .get = lx_control_playback_get, - .put = lx_control_playback_put -}; - - - -static void lx_proc_levels_read(struct snd_info_entry *entry, - struct snd_info_buffer *buffer) -{ - u32 levels[64]; - int err; - int i, j; - struct lx6464es *chip = entry->private_data; - - snd_iprintf(buffer, "capture levels:\n"); - err = lx_level_peaks(chip, 1, 64, levels); - if (err < 0) - return; - - for (i = 0; i != 8; ++i) { - for (j = 0; j != 8; ++j) - snd_iprintf(buffer, "%08x ", levels[i*8+j]); - snd_iprintf(buffer, "\n"); - } - - snd_iprintf(buffer, "\nplayback levels:\n"); - - err = lx_level_peaks(chip, 0, 64, levels); - if (err < 0) - return; - - for (i = 0; i != 8; ++i) { - for (j = 0; j != 8; ++j) - snd_iprintf(buffer, "%08x ", levels[i*8+j]); - snd_iprintf(buffer, "\n"); - } - - snd_iprintf(buffer, "\n"); -} - -static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip) -{ - struct snd_info_entry *entry; - int err = snd_card_proc_new(card, "levels", &entry); - if (err < 0) - return err; - - snd_info_set_text_ops(entry, chip, lx_proc_levels_read); - return 0; -} - - -static int __devinit snd_lx6464es_create(struct snd_card *card, - struct pci_dev *pci, - struct lx6464es **rchip) -{ - struct lx6464es *chip; - int err; - - static struct snd_device_ops ops = { - .dev_free = snd_lx6464es_dev_free, - }; - - snd_printdd("->snd_lx6464es_create\n"); - - *rchip = NULL; - - /* enable PCI device */ - err = pci_enable_device(pci); - if (err < 0) - return err; - - pci_set_master(pci); - - /* check if we can restrict PCI DMA transfers to 32 bits */ - err = pci_set_dma_mask(pci, DMA_BIT_MASK(32)); - if (err < 0) { - snd_printk(KERN_ERR "architecture does not support " - "32bit PCI busmaster DMA\n"); - pci_disable_device(pci); - return -ENXIO; - } - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - err = -ENOMEM; - goto alloc_failed; - } - - chip->card = card; - chip->pci = pci; - chip->irq = -1; - - /* initialize synchronization structs */ - spin_lock_init(&chip->lock); - spin_lock_init(&chip->msg_lock); - mutex_init(&chip->setup_mutex); - tasklet_init(&chip->trigger_tasklet, lx_trigger_tasklet, - (unsigned long)chip); - tasklet_init(&chip->tasklet_capture, lx_tasklet_capture, - (unsigned long)chip); - tasklet_init(&chip->tasklet_playback, lx_tasklet_playback, - (unsigned long)chip); - - /* request resources */ - err = pci_request_regions(pci, card_name); - if (err < 0) - goto request_regions_failed; - - /* plx port */ - chip->port_plx = pci_resource_start(pci, 1); - chip->port_plx_remapped = ioport_map(chip->port_plx, - pci_resource_len(pci, 1)); - - /* dsp port */ - chip->port_dsp_bar = pci_ioremap_bar(pci, 2); - - err = request_irq(pci->irq, lx_interrupt, IRQF_SHARED, - KBUILD_MODNAME, chip); - if (err) { - snd_printk(KERN_ERR LXP "unable to grab IRQ %d\n", pci->irq); - goto request_irq_failed; - } - chip->irq = pci->irq; - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) - goto device_new_failed; - - err = lx_init_dsp(chip); - if (err < 0) { - snd_printk(KERN_ERR LXP "error during DSP initialization\n"); - return err; - } - - err = lx_pcm_create(chip); - if (err < 0) - return err; - - err = lx_proc_create(card, chip); - if (err < 0) - return err; - - err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, - chip)); - if (err < 0) - return err; - - snd_card_set_dev(card, &pci->dev); - - *rchip = chip; - return 0; - -device_new_failed: - free_irq(pci->irq, chip); - -request_irq_failed: - pci_release_regions(pci); - -request_regions_failed: - kfree(chip); - -alloc_failed: - pci_disable_device(pci); - - return err; -} - -static int __devinit snd_lx6464es_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - static int dev; - struct snd_card *card; - struct lx6464es *chip; - int err; - - snd_printdd("->snd_lx6464es_probe\n"); - - if (dev >= SNDRV_CARDS) - return -ENODEV; - if (!enable[dev]) { - dev++; - return -ENOENT; - } - - err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); - if (err < 0) - return err; - - err = snd_lx6464es_create(card, pci, &chip); - if (err < 0) { - snd_printk(KERN_ERR LXP "error during snd_lx6464es_create\n"); - goto out_free; - } - - strcpy(card->driver, "LX6464ES"); - sprintf(card->id, "LX6464ES_%02X%02X%02X", - chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); - - sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", - chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], - chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); - - sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", - card->shortname, chip->port_plx, - chip->port_dsp_bar, chip->irq); - - err = snd_card_register(card); - if (err < 0) - goto out_free; - - snd_printdd(LXP "initialization successful\n"); - pci_set_drvdata(pci, card); - dev++; - return 0; - -out_free: - snd_card_free(card); - return err; - -} - -static void __devexit snd_lx6464es_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - - -static struct pci_driver driver = { - .name = KBUILD_MODNAME, - .id_table = snd_lx6464es_ids, - .probe = snd_lx6464es_probe, - .remove = __devexit_p(snd_lx6464es_remove), -}; - - -/* module initialization */ -static int __init mod_init(void) -{ - return pci_register_driver(&driver); -} - -static void __exit mod_exit(void) -{ - pci_unregister_driver(&driver); -} - -module_init(mod_init); -module_exit(mod_exit); |