bsps/lm32: Move shared drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 0 insertions, 436 deletions

diff --git a/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c b/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c
deleted file mode 100644
index d06f4ced0a..0000000000
--- a/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/*  ac97.c
- *
- *  Sound driver for Milkymist SoC
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.org/license/LICENSE.
- *
- *  COPYRIGHT (c) 2010, 2011 Sebastien Bourdeauducq
- */
-
-#define RTEMS_STATUS_CHECKS_USE_PRINTK
-
-#include <rtems.h>
-#include <bsp.h>
-#include <bsp/irq-generic.h>
-#include <rtems/libio.h>
-#include <rtems/status-checks.h>
-#include "../include/system_conf.h"
-#include <bsp/milkymist_ac97.h>
-
-#define SND_DEVICE_NAME "/dev/snd"
-#define MIXER_DEVICE_NAME "/dev/mixer"
-
-static rtems_id cr_write_sem;
-static rtems_id cr_read_sem;
-
-static rtems_isr crrequest_handler(rtems_vector_number n)
-{
-  rtems_semaphore_release(cr_write_sem);
-  lm32_interrupt_ack(1 << MM_IRQ_AC97CRREQUEST);
-}
-
-static rtems_isr crreply_handler(rtems_vector_number n)
-{
-  rtems_semaphore_release(cr_read_sem);
-  lm32_interrupt_ack(1 << MM_IRQ_AC97CRREPLY);
-}
-
-/* queued playback buffers */
-#define PLAY_Q_SIZE 8
-#define PLAY_Q_MASK (PLAY_Q_SIZE-1)
-
-static struct snd_buffer *play_q[PLAY_Q_SIZE];
-static int play_produce;
-static int play_consume;
-static int play_level;
-
-/* buffers played, for application to collect */
-static rtems_id play_q_done;
-
-static void play_start(struct snd_buffer *buf)
-{
-  if (buf->nsamples > (AC97_MAX_DMASIZE/4))
-    buf->nsamples = AC97_MAX_DMASIZE/4;
-
-  MM_WRITE(MM_AC97_DADDRESS, (unsigned int)buf->samples);
-  MM_WRITE(MM_AC97_DREMAINING, buf->nsamples*4);
-  MM_WRITE(MM_AC97_DCTL, AC97_SCTL_EN);
-}
-
-static rtems_isr pcmplay_handler(rtems_vector_number n)
-{
-  lm32_interrupt_ack(1 << MM_IRQ_AC97DMAR);
-
-  rtems_message_queue_send(play_q_done, &play_q[play_consume],
-    sizeof(void *));
-
-  play_consume = (play_consume + 1) & PLAY_Q_MASK;
-  play_level--;
-
-  if(play_level > 0)
-    play_start(play_q[play_consume]);
-  else
-    MM_WRITE(MM_AC97_DCTL, 0);
-}
-
-/* queued record buffers */
-#define RECORD_Q_SIZE 8
-#define RECORD_Q_MASK (RECORD_Q_SIZE-1)
-
-static struct snd_buffer *record_q[RECORD_Q_SIZE];
-static int record_produce;
-static int record_consume;
-static int record_level;
-
-/* buffers recorded, for application to collect */
-static rtems_id record_q_done;
-
-static void record_start(struct snd_buffer *buf)
-{
-  if (buf->nsamples > (AC97_MAX_DMASIZE/4))
-    buf->nsamples = AC97_MAX_DMASIZE/4;
-
-  MM_WRITE(MM_AC97_UADDRESS, (unsigned int)buf->samples);
-  MM_WRITE(MM_AC97_UREMAINING, buf->nsamples*4);
-  MM_WRITE(MM_AC97_UCTL, AC97_SCTL_EN);
-}
-
-static rtems_isr pcmrecord_handler(rtems_vector_number n)
-{
-  lm32_interrupt_ack(1 << MM_IRQ_AC97DMAW);
-
-  __asm__ volatile( /* Invalidate Level-1 data cache */
-      "wcsr DCC, r0\n"
-      "nop\n"
-    );
-
-  rtems_message_queue_send(record_q_done, &record_q[record_consume],
-    sizeof(void *));
-
-  record_consume = (record_consume + 1) & RECORD_Q_MASK;
-  record_level--;
-
-  if(record_level > 0)
-    record_start(record_q[record_consume]);
-  else
-    MM_WRITE(MM_AC97_UCTL, 0);
-}
-
-rtems_device_driver ac97_initialize(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void *arg
-)
-{
-  rtems_status_code sc;
-  rtems_isr_entry dummy;
-
-  sc = rtems_io_register_name(SND_DEVICE_NAME, major, 0);
-  RTEMS_CHECK_SC(sc, "create snd device");
-
-  sc = rtems_io_register_name(MIXER_DEVICE_NAME, major, 1);
-  RTEMS_CHECK_SC(sc, "create mixer device");
-
-  sc = rtems_semaphore_create(
-    rtems_build_name('C', 'R', 'W', 'S'),
-    0,
-    RTEMS_SIMPLE_BINARY_SEMAPHORE,
-    0,
-    &cr_write_sem
-  );
-  RTEMS_CHECK_SC(sc, "create AC97 register write semaphore");
-
-  sc = rtems_semaphore_create(
-    rtems_build_name('C', 'R', 'R', 'S'),
-    0,
-    RTEMS_SIMPLE_BINARY_SEMAPHORE,
-    0,
-    &cr_read_sem
-  );
-  RTEMS_CHECK_SC(sc, "create AC97 register read semaphore");
-
-  sc = rtems_message_queue_create(
-    rtems_build_name('P', 'L', 'Y', 'Q'),
-    PLAY_Q_SIZE*2,
-    sizeof(void *),
-    0,
-    &play_q_done
-  );
-  RTEMS_CHECK_SC(sc, "create playback done queue");
-
-  sc = rtems_message_queue_create(
-    rtems_build_name('R', 'E', 'C', 'Q'),
-    RECORD_Q_SIZE*2,
-    sizeof(void *),
-    0,
-    &record_q_done
-  );
-  RTEMS_CHECK_SC(sc, "create record done queue");
-
-  rtems_interrupt_catch(crrequest_handler, MM_IRQ_AC97CRREQUEST, &dummy);
-  rtems_interrupt_catch(crreply_handler, MM_IRQ_AC97CRREPLY, &dummy);
-  rtems_interrupt_catch(pcmplay_handler, MM_IRQ_AC97DMAR, &dummy);
-  rtems_interrupt_catch(pcmrecord_handler, MM_IRQ_AC97DMAW, &dummy);
-  bsp_interrupt_vector_enable(MM_IRQ_AC97CRREQUEST);
-  bsp_interrupt_vector_enable(MM_IRQ_AC97CRREPLY);
-  bsp_interrupt_vector_enable(MM_IRQ_AC97DMAR);
-  bsp_interrupt_vector_enable(MM_IRQ_AC97DMAW);
-
-  play_produce = 0;
-  play_consume = 0;
-  play_level = 0;
-
-  record_produce = 0;
-  record_consume = 0;
-  record_level = 0;
-
-  return RTEMS_SUCCESSFUL;
-}
-
-static rtems_status_code submit_play(struct snd_buffer *buf)
-{
-  bsp_interrupt_vector_disable(MM_IRQ_AC97DMAR);
-  if (play_level == PLAY_Q_SIZE) {
-    bsp_interrupt_vector_enable(MM_IRQ_AC97DMAR);
-    return RTEMS_UNSATISFIED;
-  }
-  play_q[play_produce] = buf;
-  play_produce = (play_produce + 1) & PLAY_Q_MASK;
-  play_level++;
-
-  if (play_level == 1)
-    play_start(buf);
-
-  bsp_interrupt_vector_enable(MM_IRQ_AC97DMAR);
-  return RTEMS_SUCCESSFUL;
-}
-
-static rtems_status_code collect_play(struct snd_buffer **buf)
-{
-  size_t s;
-
-  return rtems_message_queue_receive(
-    play_q_done,
-    buf,
-    &s,
-    RTEMS_WAIT,
-    RTEMS_NO_TIMEOUT
-  );
-}
-
-static rtems_status_code submit_record(struct snd_buffer *buf)
-{
-  bsp_interrupt_vector_disable(MM_IRQ_AC97DMAW);
-  if (record_level == RECORD_Q_SIZE) {
-    bsp_interrupt_vector_enable(MM_IRQ_AC97DMAW);
-    return RTEMS_UNSATISFIED;
-  }
-  record_q[record_produce] = buf;
-  record_produce = (record_produce + 1) & RECORD_Q_MASK;
-  record_level++;
-
-  if (record_level == 1)
-    record_start(buf);
-
-  bsp_interrupt_vector_enable(MM_IRQ_AC97DMAW);
-  return RTEMS_SUCCESSFUL;
-}
-
-static rtems_status_code collect_record(struct snd_buffer **buf)
-{
-  size_t s;
-
-  return rtems_message_queue_receive(
-    record_q_done,
-    buf,
-    &s,
-    RTEMS_WAIT,
-    RTEMS_NO_TIMEOUT
-  );
-}
-
-#define CR_TIMEOUT 10
-
-static int read_cr(unsigned int adr)
-{
-  rtems_status_code sc;
-
-  MM_WRITE(MM_AC97_CRADDR, adr);
-  MM_WRITE(MM_AC97_CRCTL, AC97_CRCTL_RQEN);
-  sc = rtems_semaphore_obtain(cr_write_sem, RTEMS_WAIT, CR_TIMEOUT);
-  if (sc != RTEMS_SUCCESSFUL)
-    return -1;
-  sc = rtems_semaphore_obtain(cr_read_sem, RTEMS_WAIT, CR_TIMEOUT);
-  if (sc != RTEMS_SUCCESSFUL)
-    return -1;
-  return MM_READ(MM_AC97_CRDATAIN);
-}
-
-static int write_cr(unsigned int adr, unsigned int val)
-{
-  rtems_status_code sc;
-
-  MM_WRITE(MM_AC97_CRADDR, adr);
-  MM_WRITE(MM_AC97_CRDATAOUT, val);
-  MM_WRITE(MM_AC97_CRCTL, AC97_CRCTL_RQEN|AC97_CRCTL_WRITE);
-  sc = rtems_semaphore_obtain(cr_write_sem, RTEMS_WAIT, CR_TIMEOUT);
-  if (sc != RTEMS_SUCCESSFUL)
-    return 0;
-  return 1;
-}
-
-rtems_device_driver ac97_open(
-   rtems_device_major_number major,
-   rtems_device_minor_number minor,
-   void *arg
-)
-{
-  int codec_id;
-  
-  if (minor == 0) {
-    /* snd */
-    return RTEMS_SUCCESSFUL;
-  } else {
-    /* mixer */
-    codec_id = read_cr(0x00);
-    if ((codec_id != 0x0d50) && (codec_id != 0x6150)) {
-      printk("AC97 codec detection failed\n");
-      return RTEMS_UNSATISFIED;
-    }
-    write_cr(0x02, 0x0000); /* master volume */
-    write_cr(0x04, 0x0f0f); /* headphones volume */
-    write_cr(0x18, 0x0000); /* PCM out volume */
-    write_cr(0x1c, 0x0f0f); /* record gain */
-
-    write_cr(0x1a, 0x0505); /* record select: stereo mix */
-
-    return RTEMS_SUCCESSFUL;
-  }
-}
-
-static rtems_status_code ioctl_read_channel(void *buf,
-  unsigned int chan, int mono)
-{
-  unsigned int *val = (unsigned int *)buf;
-  int mic_boost;
-  int codec;
-  int left, right;
-
-  codec = read_cr(chan);
-  if (codec < 0)
-    return RTEMS_UNSATISFIED;
-  if (codec & 0x8000) {
-    /* muted */
-    *val = 0;
-    return RTEMS_SUCCESSFUL;
-  }
-  if (mono) {
-    left = 100-(((codec & 0x1f) + 1)*100)/32;
-    mic_boost = (codec & (1 << 6)) >> 6;
-    *val = left | mic_boost << 8;
-  } else {
-    right = 100-(((codec & 0x1f) + 1)*100)/32;
-    left = 100-((((codec & 0x1f00) >> 8) + 1)*100)/32;
-    *val = left | (right << 8);
-  }
-  return RTEMS_SUCCESSFUL;
-}
-
-static rtems_status_code ioctl_write_channel(void *buf,
-  unsigned int chan, int mono)
-{
-  unsigned int *val = (unsigned int *)buf;
-  int mic_boost;
-  int left, right;
-  int codec;
-  rtems_status_code sc;
-
-  left = *val & 0xff;
-  left = (left*32)/100 - 1;
-  if (left < 0)
-    left = 0;
-
-  if (mono) {
-    mic_boost = *val >> 8;
-    right = 31;
-  } else {
-    right = (*val >> 8) & 0xff;
-    right = (right*32)/100 - 1;
-    if (right < 0)
-      right = 0;
-  }
-
-  if ((left == 0) && (right == 0))
-    /* mute */
-    codec = 0x8000;
-  else
-    codec = (31-left) | ((31-right) << 8);
-
-  if (mono) {
-    if (mic_boost)
-      codec |= (1 << 6);
-    else
-      codec &= ~(1 << 6);
-  }
-
-  if (!write_cr(chan, codec))
-    sc = RTEMS_UNSATISFIED;
-  else
-    sc = RTEMS_SUCCESSFUL;
-  return sc;
-}
-
-rtems_device_driver ac97_control(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void *arg
-)
-{
-  rtems_libio_ioctl_args_t *args = arg;
-  rtems_status_code sc;
-
-  args->ioctl_return = -1;
-  if(minor == 0) {
-    /* dsp */
-    switch (args->command) {
-      case SOUND_SND_SUBMIT_PLAY:
-        return submit_play((struct snd_buffer *)args->buffer);
-      case SOUND_SND_COLLECT_PLAY:
-        return collect_play((struct snd_buffer **)args->buffer);
-      case SOUND_SND_SUBMIT_RECORD:
-        return submit_record((struct snd_buffer *)args->buffer);
-      case SOUND_SND_COLLECT_RECORD:
-        return collect_record((struct snd_buffer **)args->buffer);
-      default:
-        return RTEMS_UNSATISFIED;
-    }
-  } else {
-    /* mixer */
-    switch (args->command) {
-      case SOUND_MIXER_READ(SOUND_MIXER_MIC):
-        sc = ioctl_read_channel(args->buffer, 0x0e, 1);
-        if(sc == RTEMS_SUCCESSFUL)
-          args->ioctl_return = 0;
-        return sc;
-      case SOUND_MIXER_READ(SOUND_MIXER_LINE):
-        sc = ioctl_read_channel(args->buffer, 0x10, 0);
-        if(sc == RTEMS_SUCCESSFUL)
-          args->ioctl_return = 0;
-        return sc;
-      case SOUND_MIXER_WRITE(SOUND_MIXER_MIC):
-        sc = ioctl_write_channel(args->buffer, 0x0e, 1);
-        if(sc == RTEMS_SUCCESSFUL)
-          args->ioctl_return = 0;
-        return sc;
-      case SOUND_MIXER_WRITE(SOUND_MIXER_LINE):
-        sc = ioctl_write_channel(args->buffer, 0x10, 0);
-        if(sc == RTEMS_SUCCESSFUL)
-          args->ioctl_return = 0;
-        return sc;
-      default:
-        return RTEMS_UNSATISFIED;
-    }
-  }
-}