diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/ppc/pmac.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/ppc/pmac.c | 1410 |
1 files changed, 0 insertions, 1410 deletions
diff --git a/ANDROID_3.4.5/sound/ppc/pmac.c b/ANDROID_3.4.5/sound/ppc/pmac.c deleted file mode 100644 index ab96cde7..00000000 --- a/ANDROID_3.4.5/sound/ppc/pmac.c +++ /dev/null @@ -1,1410 +0,0 @@ -/* - * PMac DBDMA lowlevel functions - * - * Copyright (c) by Takashi Iwai <tiwai@suse.de> - * code based on dmasound.c. - * - * 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 - */ - - -#include <asm/io.h> -#include <asm/irq.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <sound/core.h> -#include "pmac.h" -#include <sound/pcm_params.h> -#include <asm/pmac_feature.h> -#include <asm/pci-bridge.h> - - -/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ -static int awacs_freqs[8] = { - 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 -}; -/* fixed frequency table for tumbler */ -static int tumbler_freqs[1] = { - 44100 -}; - - -/* - * we will allocate a single 'emergency' dbdma cmd block to use if the - * tx status comes up "DEAD". This happens on some PowerComputing Pmac - * clones, either owing to a bug in dbdma or some interaction between - * IDE and sound. However, this measure would deal with DEAD status if - * it appeared elsewhere. - */ -static struct pmac_dbdma emergency_dbdma; -static int emergency_in_use; - - -/* - * allocate DBDMA command arrays - */ -static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size) -{ - unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1); - - rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize, - &rec->dma_base, GFP_KERNEL); - if (rec->space == NULL) - return -ENOMEM; - rec->size = size; - memset(rec->space, 0, rsize); - rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); - rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space); - - return 0; -} - -static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec) -{ - if (rec->space) { - unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1); - - dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base); - } -} - - -/* - * pcm stuff - */ - -/* - * look up frequency table - */ - -unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate) -{ - int i, ok, found; - - ok = rec->cur_freqs; - if (rate > chip->freq_table[0]) - return 0; - found = 0; - for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { - if (! (ok & 1)) continue; - found = i; - if (rate >= chip->freq_table[i]) - break; - } - return found; -} - -/* - * check whether another stream is active - */ -static inline int another_stream(int stream) -{ - return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? - SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; -} - -/* - * allocate buffers - */ -static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs, - struct snd_pcm_hw_params *hw_params) -{ - return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); -} - -/* - * release buffers - */ -static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) -{ - snd_pcm_lib_free_pages(subs); - return 0; -} - -/* - * get a stream of the opposite direction - */ -static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream) -{ - switch (stream) { - case SNDRV_PCM_STREAM_PLAYBACK: - return &chip->playback; - case SNDRV_PCM_STREAM_CAPTURE: - return &chip->capture; - default: - snd_BUG(); - return NULL; - } -} - -/* - * wait while run status is on - */ -static inline void -snd_pmac_wait_ack(struct pmac_stream *rec) -{ - int timeout = 50000; - while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) - udelay(1); -} - -/* - * set the format and rate to the chip. - * call the lowlevel function if defined (e.g. for AWACS). - */ -static void snd_pmac_pcm_set_format(struct snd_pmac *chip) -{ - /* set up frequency and format */ - out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); - out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); - if (chip->set_format) - chip->set_format(chip); -} - -/* - * stop the DMA transfer - */ -static inline void snd_pmac_dma_stop(struct pmac_stream *rec) -{ - out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); - snd_pmac_wait_ack(rec); -} - -/* - * set the command pointer address - */ -static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd) -{ - out_le32(&rec->dma->cmdptr, cmd->addr); -} - -/* - * start the DMA - */ -static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status) -{ - out_le32(&rec->dma->control, status | (status << 16)); -} - - -/* - * prepare playback/capture stream - */ -static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs) -{ - int i; - volatile struct dbdma_cmd __iomem *cp; - struct snd_pcm_runtime *runtime = subs->runtime; - int rate_index; - long offset; - struct pmac_stream *astr; - - rec->dma_size = snd_pcm_lib_buffer_bytes(subs); - rec->period_size = snd_pcm_lib_period_bytes(subs); - rec->nperiods = rec->dma_size / rec->period_size; - rec->cur_period = 0; - rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); - - /* set up constraints */ - astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); - if (! astr) - return -EINVAL; - astr->cur_freqs = 1 << rate_index; - astr->cur_formats = 1 << runtime->format; - chip->rate_index = rate_index; - chip->format = runtime->format; - - /* We really want to execute a DMA stop command, after the AWACS - * is initialized. - * For reasons I don't understand, it stops the hissing noise - * common to many PowerBook G3 systems and random noise otherwise - * captured on iBook2's about every third time. -ReneR - */ - spin_lock_irq(&chip->reg_lock); - snd_pmac_dma_stop(rec); - st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); - snd_pmac_dma_set_command(rec, &chip->extra_dma); - snd_pmac_dma_run(rec, RUN); - spin_unlock_irq(&chip->reg_lock); - mdelay(5); - spin_lock_irq(&chip->reg_lock); - /* continuous DMA memory type doesn't provide the physical address, - * so we need to resolve the address here... - */ - offset = runtime->dma_addr; - for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { - st_le32(&cp->phy_addr, offset); - st_le16(&cp->req_count, rec->period_size); - /*st_le16(&cp->res_count, 0);*/ - st_le16(&cp->xfer_status, 0); - offset += rec->period_size; - } - /* make loop */ - st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); - st_le32(&cp->cmd_dep, rec->cmd.addr); - - snd_pmac_dma_stop(rec); - snd_pmac_dma_set_command(rec, &rec->cmd); - spin_unlock_irq(&chip->reg_lock); - - return 0; -} - - -/* - * PCM trigger/stop - */ -static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec, - struct snd_pcm_substream *subs, int cmd) -{ - volatile struct dbdma_cmd __iomem *cp; - int i, command; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - if (rec->running) - return -EBUSY; - command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? - OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; - spin_lock(&chip->reg_lock); - snd_pmac_beep_stop(chip); - snd_pmac_pcm_set_format(chip); - for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) - out_le16(&cp->command, command); - snd_pmac_dma_set_command(rec, &rec->cmd); - (void)in_le32(&rec->dma->status); - snd_pmac_dma_run(rec, RUN|WAKE); - rec->running = 1; - spin_unlock(&chip->reg_lock); - break; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - spin_lock(&chip->reg_lock); - rec->running = 0; - /*printk(KERN_DEBUG "stopped!!\n");*/ - snd_pmac_dma_stop(rec); - for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) - out_le16(&cp->command, DBDMA_STOP); - spin_unlock(&chip->reg_lock); - break; - - default: - return -EINVAL; - } - - return 0; -} - -/* - * return the current pointer - */ -inline -static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip, - struct pmac_stream *rec, - struct snd_pcm_substream *subs) -{ - int count = 0; - -#if 1 /* hmm.. how can we get the current dma pointer?? */ - int stat; - volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; - stat = ld_le16(&cp->xfer_status); - if (stat & (ACTIVE|DEAD)) { - count = in_le16(&cp->res_count); - if (count) - count = rec->period_size - count; - } -#endif - count += rec->cur_period * rec->period_size; - /*printk(KERN_DEBUG "pointer=%d\n", count);*/ - return bytes_to_frames(subs->runtime, count); -} - -/* - * playback - */ - -static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_prepare(chip, &chip->playback, subs); -} - -static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs, - int cmd) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); -} - -static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_pointer(chip, &chip->playback, subs); -} - - -/* - * capture - */ - -static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_prepare(chip, &chip->capture, subs); -} - -static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs, - int cmd) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); -} - -static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - return snd_pmac_pcm_pointer(chip, &chip->capture, subs); -} - - -/* - * Handle DEAD DMA transfers: - * if the TX status comes up "DEAD" - reported on some Power Computing machines - * we need to re-start the dbdma - but from a different physical start address - * and with a different transfer length. It would get very messy to do this - * with the normal dbdma_cmd blocks - we would have to re-write the buffer start - * addresses each time. So, we will keep a single dbdma_cmd block which can be - * fiddled with. - * When DEAD status is first reported the content of the faulted dbdma block is - * copied into the emergency buffer and we note that the buffer is in use. - * we then bump the start physical address by the amount that was successfully - * output before it died. - * On any subsequent DEAD result we just do the bump-ups (we know that we are - * already using the emergency dbdma_cmd). - * CHECK: this just tries to "do it". It is possible that we should abandon - * xfers when the number of residual bytes gets below a certain value - I can - * see that this might cause a loop-forever if a too small transfer causes - * DEAD status. However this is a TODO for now - we'll see what gets reported. - * When we get a successful transfer result with the emergency buffer we just - * pretend that it completed using the original dmdma_cmd and carry on. The - * 'next_cmd' field will already point back to the original loop of blocks. - */ -static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec, - volatile struct dbdma_cmd __iomem *cp) -{ - unsigned short req, res ; - unsigned int phy ; - - /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */ - - /* to clear DEAD status we must first clear RUN - set it to quiescent to be on the safe side */ - (void)in_le32(&rec->dma->status); - out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); - - if (!emergency_in_use) { /* new problem */ - memcpy((void *)emergency_dbdma.cmds, (void *)cp, - sizeof(struct dbdma_cmd)); - emergency_in_use = 1; - st_le16(&cp->xfer_status, 0); - st_le16(&cp->req_count, rec->period_size); - cp = emergency_dbdma.cmds; - } - - /* now bump the values to reflect the amount - we haven't yet shifted */ - req = ld_le16(&cp->req_count); - res = ld_le16(&cp->res_count); - phy = ld_le32(&cp->phy_addr); - phy += (req - res); - st_le16(&cp->req_count, res); - st_le16(&cp->res_count, 0); - st_le16(&cp->xfer_status, 0); - st_le32(&cp->phy_addr, phy); - - st_le32(&cp->cmd_dep, rec->cmd.addr - + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods)); - - st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS); - - /* point at our patched up command block */ - out_le32(&rec->dma->cmdptr, emergency_dbdma.addr); - - /* we must re-start the controller */ - (void)in_le32(&rec->dma->status); - /* should complete clearing the DEAD status */ - out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); -} - -/* - * update playback/capture pointer from interrupts - */ -static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec) -{ - volatile struct dbdma_cmd __iomem *cp; - int c; - int stat; - - spin_lock(&chip->reg_lock); - if (rec->running) { - for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ - - if (emergency_in_use) /* already using DEAD xfer? */ - cp = emergency_dbdma.cmds; - else - cp = &rec->cmd.cmds[rec->cur_period]; - - stat = ld_le16(&cp->xfer_status); - - if (stat & DEAD) { - snd_pmac_pcm_dead_xfer(rec, cp); - break; /* this block is still going */ - } - - if (emergency_in_use) - emergency_in_use = 0 ; /* done that */ - - if (! (stat & ACTIVE)) - break; - - /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/ - st_le16(&cp->xfer_status, 0); - st_le16(&cp->req_count, rec->period_size); - /*st_le16(&cp->res_count, 0);*/ - rec->cur_period++; - if (rec->cur_period >= rec->nperiods) { - rec->cur_period = 0; - } - - spin_unlock(&chip->reg_lock); - snd_pcm_period_elapsed(rec->substream); - spin_lock(&chip->reg_lock); - } - } - spin_unlock(&chip->reg_lock); -} - - -/* - * hw info - */ - -static struct snd_pcm_hardware snd_pmac_playback = -{ - .info = (SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_RESUME), - .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_8000_44100, - .rate_min = 7350, - .rate_max = 44100, - .channels_min = 2, - .channels_max = 2, - .buffer_bytes_max = 131072, - .period_bytes_min = 256, - .period_bytes_max = 16384, - .periods_min = 3, - .periods_max = PMAC_MAX_FRAGS, -}; - -static struct snd_pcm_hardware snd_pmac_capture = -{ - .info = (SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_RESUME), - .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_8000_44100, - .rate_min = 7350, - .rate_max = 44100, - .channels_min = 2, - .channels_max = 2, - .buffer_bytes_max = 131072, - .period_bytes_min = 256, - .period_bytes_max = 16384, - .periods_min = 3, - .periods_max = PMAC_MAX_FRAGS, -}; - - -#if 0 // NYI -static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - struct snd_pmac *chip = rule->private; - struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); - int i, freq_table[8], num_freqs; - - if (! rec) - return -EINVAL; - num_freqs = 0; - for (i = chip->num_freqs - 1; i >= 0; i--) { - if (rec->cur_freqs & (1 << i)) - freq_table[num_freqs++] = chip->freq_table[i]; - } - - return snd_interval_list(hw_param_interval(params, rule->var), - num_freqs, freq_table, 0); -} - -static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - struct snd_pmac *chip = rule->private; - struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); - - if (! rec) - return -EINVAL; - return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), - rec->cur_formats); -} -#endif // NYI - -static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec, - struct snd_pcm_substream *subs) -{ - struct snd_pcm_runtime *runtime = subs->runtime; - int i; - - /* look up frequency table and fill bit mask */ - runtime->hw.rates = 0; - for (i = 0; i < chip->num_freqs; i++) - if (chip->freqs_ok & (1 << i)) - runtime->hw.rates |= - snd_pcm_rate_to_rate_bit(chip->freq_table[i]); - - /* check for minimum and maximum rates */ - for (i = 0; i < chip->num_freqs; i++) { - if (chip->freqs_ok & (1 << i)) { - runtime->hw.rate_max = chip->freq_table[i]; - break; - } - } - for (i = chip->num_freqs - 1; i >= 0; i--) { - if (chip->freqs_ok & (1 << i)) { - runtime->hw.rate_min = chip->freq_table[i]; - break; - } - } - runtime->hw.formats = chip->formats_ok; - if (chip->can_capture) { - if (! chip->can_duplex) - runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; - runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; - } - runtime->private_data = rec; - rec->substream = subs; - -#if 0 /* FIXME: still under development.. */ - snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - snd_pmac_hw_rule_rate, chip, rec->stream, -1); - snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, - snd_pmac_hw_rule_format, chip, rec->stream, -1); -#endif - - runtime->hw.periods_max = rec->cmd.size - 1; - - /* constraints to fix choppy sound */ - snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); - return 0; -} - -static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec, - struct snd_pcm_substream *subs) -{ - struct pmac_stream *astr; - - snd_pmac_dma_stop(rec); - - astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); - if (! astr) - return -EINVAL; - - /* reset constraints */ - astr->cur_freqs = chip->freqs_ok; - astr->cur_formats = chip->formats_ok; - - return 0; -} - -static int snd_pmac_playback_open(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - - subs->runtime->hw = snd_pmac_playback; - return snd_pmac_pcm_open(chip, &chip->playback, subs); -} - -static int snd_pmac_capture_open(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - - subs->runtime->hw = snd_pmac_capture; - return snd_pmac_pcm_open(chip, &chip->capture, subs); -} - -static int snd_pmac_playback_close(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - - return snd_pmac_pcm_close(chip, &chip->playback, subs); -} - -static int snd_pmac_capture_close(struct snd_pcm_substream *subs) -{ - struct snd_pmac *chip = snd_pcm_substream_chip(subs); - - return snd_pmac_pcm_close(chip, &chip->capture, subs); -} - -/* - */ - -static struct snd_pcm_ops snd_pmac_playback_ops = { - .open = snd_pmac_playback_open, - .close = snd_pmac_playback_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_pmac_pcm_hw_params, - .hw_free = snd_pmac_pcm_hw_free, - .prepare = snd_pmac_playback_prepare, - .trigger = snd_pmac_playback_trigger, - .pointer = snd_pmac_playback_pointer, -}; - -static struct snd_pcm_ops snd_pmac_capture_ops = { - .open = snd_pmac_capture_open, - .close = snd_pmac_capture_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_pmac_pcm_hw_params, - .hw_free = snd_pmac_pcm_hw_free, - .prepare = snd_pmac_capture_prepare, - .trigger = snd_pmac_capture_trigger, - .pointer = snd_pmac_capture_pointer, -}; - -int __devinit snd_pmac_pcm_new(struct snd_pmac *chip) -{ - struct snd_pcm *pcm; - int err; - int num_captures = 1; - - if (! chip->can_capture) - num_captures = 0; - err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); - if (err < 0) - return err; - - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); - if (chip->can_capture) - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); - - pcm->private_data = chip; - pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; - strcpy(pcm->name, chip->card->shortname); - chip->pcm = pcm; - - chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; - if (chip->can_byte_swap) - chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; - - chip->playback.cur_formats = chip->formats_ok; - chip->capture.cur_formats = chip->formats_ok; - chip->playback.cur_freqs = chip->freqs_ok; - chip->capture.cur_freqs = chip->freqs_ok; - - /* preallocate 64k buffer */ - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - &chip->pdev->dev, - 64 * 1024, 64 * 1024); - - return 0; -} - - -static void snd_pmac_dbdma_reset(struct snd_pmac *chip) -{ - out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); - snd_pmac_wait_ack(&chip->playback); - out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); - snd_pmac_wait_ack(&chip->capture); -} - - -/* - * handling beep - */ -void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed) -{ - struct pmac_stream *rec = &chip->playback; - - snd_pmac_dma_stop(rec); - st_le16(&chip->extra_dma.cmds->req_count, bytes); - st_le16(&chip->extra_dma.cmds->xfer_status, 0); - st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr); - st_le32(&chip->extra_dma.cmds->phy_addr, addr); - st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS); - out_le32(&chip->awacs->control, - (in_le32(&chip->awacs->control) & ~0x1f00) - | (speed << 8)); - out_le32(&chip->awacs->byteswap, 0); - snd_pmac_dma_set_command(rec, &chip->extra_dma); - snd_pmac_dma_run(rec, RUN); -} - -void snd_pmac_beep_dma_stop(struct snd_pmac *chip) -{ - snd_pmac_dma_stop(&chip->playback); - st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); - snd_pmac_pcm_set_format(chip); /* reset format */ -} - - -/* - * interrupt handlers - */ -static irqreturn_t -snd_pmac_tx_intr(int irq, void *devid) -{ - struct snd_pmac *chip = devid; - snd_pmac_pcm_update(chip, &chip->playback); - return IRQ_HANDLED; -} - - -static irqreturn_t -snd_pmac_rx_intr(int irq, void *devid) -{ - struct snd_pmac *chip = devid; - snd_pmac_pcm_update(chip, &chip->capture); - return IRQ_HANDLED; -} - - -static irqreturn_t -snd_pmac_ctrl_intr(int irq, void *devid) -{ - struct snd_pmac *chip = devid; - int ctrl = in_le32(&chip->awacs->control); - - /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/ - if (ctrl & MASK_PORTCHG) { - /* do something when headphone is plugged/unplugged? */ - if (chip->update_automute) - chip->update_automute(chip, 1); - } - if (ctrl & MASK_CNTLERR) { - int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; - if (err && chip->model <= PMAC_SCREAMER) - snd_printk(KERN_DEBUG "error %x\n", err); - } - /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ - out_le32(&chip->awacs->control, ctrl); - return IRQ_HANDLED; -} - - -/* - * a wrapper to feature call for compatibility - */ -static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable) -{ - if (ppc_md.feature_call) - ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); -} - -/* - * release resources - */ - -static int snd_pmac_free(struct snd_pmac *chip) -{ - /* stop sounds */ - if (chip->initialized) { - snd_pmac_dbdma_reset(chip); - /* disable interrupts from awacs interface */ - out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); - } - - if (chip->node) - snd_pmac_sound_feature(chip, 0); - - /* clean up mixer if any */ - if (chip->mixer_free) - chip->mixer_free(chip); - - snd_pmac_detach_beep(chip); - - /* release resources */ - if (chip->irq >= 0) - free_irq(chip->irq, (void*)chip); - if (chip->tx_irq >= 0) - free_irq(chip->tx_irq, (void*)chip); - if (chip->rx_irq >= 0) - free_irq(chip->rx_irq, (void*)chip); - snd_pmac_dbdma_free(chip, &chip->playback.cmd); - snd_pmac_dbdma_free(chip, &chip->capture.cmd); - snd_pmac_dbdma_free(chip, &chip->extra_dma); - snd_pmac_dbdma_free(chip, &emergency_dbdma); - if (chip->macio_base) - iounmap(chip->macio_base); - if (chip->latch_base) - iounmap(chip->latch_base); - if (chip->awacs) - iounmap(chip->awacs); - if (chip->playback.dma) - iounmap(chip->playback.dma); - if (chip->capture.dma) - iounmap(chip->capture.dma); - - if (chip->node) { - int i; - for (i = 0; i < 3; i++) { - if (chip->requested & (1 << i)) - release_mem_region(chip->rsrc[i].start, - resource_size(&chip->rsrc[i])); - } - } - - if (chip->pdev) - pci_dev_put(chip->pdev); - of_node_put(chip->node); - kfree(chip); - return 0; -} - - -/* - * free the device - */ -static int snd_pmac_dev_free(struct snd_device *device) -{ - struct snd_pmac *chip = device->device_data; - return snd_pmac_free(chip); -} - - -/* - * check the machine support byteswap (little-endian) - */ - -static void __devinit detect_byte_swap(struct snd_pmac *chip) -{ - struct device_node *mio; - - /* if seems that Keylargo can't byte-swap */ - for (mio = chip->node->parent; mio; mio = mio->parent) { - if (strcmp(mio->name, "mac-io") == 0) { - if (of_device_is_compatible(mio, "Keylargo")) - chip->can_byte_swap = 0; - break; - } - } - - /* it seems the Pismo & iBook can't byte-swap in hardware. */ - if (of_machine_is_compatible("PowerBook3,1") || - of_machine_is_compatible("PowerBook2,1")) - chip->can_byte_swap = 0 ; - - if (of_machine_is_compatible("PowerBook2,1")) - chip->can_duplex = 0; -} - - -/* - * detect a sound chip - */ -static int __devinit snd_pmac_detect(struct snd_pmac *chip) -{ - struct device_node *sound; - struct device_node *dn; - const unsigned int *prop; - unsigned int l; - struct macio_chip* macio; - - if (!machine_is(powermac)) - return -ENODEV; - - chip->subframe = 0; - chip->revision = 0; - chip->freqs_ok = 0xff; /* all ok */ - chip->model = PMAC_AWACS; - chip->can_byte_swap = 1; - chip->can_duplex = 1; - chip->can_capture = 1; - chip->num_freqs = ARRAY_SIZE(awacs_freqs); - chip->freq_table = awacs_freqs; - chip->pdev = NULL; - - chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ - - /* check machine type */ - if (of_machine_is_compatible("AAPL,3400/2400") - || of_machine_is_compatible("AAPL,3500")) - chip->is_pbook_3400 = 1; - else if (of_machine_is_compatible("PowerBook1,1") - || of_machine_is_compatible("AAPL,PowerBook1998")) - chip->is_pbook_G3 = 1; - chip->node = of_find_node_by_name(NULL, "awacs"); - sound = of_node_get(chip->node); - - /* - * powermac G3 models have a node called "davbus" - * with a child called "sound". - */ - if (!chip->node) - chip->node = of_find_node_by_name(NULL, "davbus"); - /* - * if we didn't find a davbus device, try 'i2s-a' since - * this seems to be what iBooks have - */ - if (! chip->node) { - chip->node = of_find_node_by_name(NULL, "i2s-a"); - if (chip->node && chip->node->parent && - chip->node->parent->parent) { - if (of_device_is_compatible(chip->node->parent->parent, - "K2-Keylargo")) - chip->is_k2 = 1; - } - } - if (! chip->node) - return -ENODEV; - - if (!sound) { - sound = of_find_node_by_name(NULL, "sound"); - while (sound && sound->parent != chip->node) - sound = of_find_node_by_name(sound, "sound"); - } - if (! sound) { - of_node_put(chip->node); - chip->node = NULL; - return -ENODEV; - } - prop = of_get_property(sound, "sub-frame", NULL); - if (prop && *prop < 16) - chip->subframe = *prop; - prop = of_get_property(sound, "layout-id", NULL); - if (prop) { - /* partly deprecate snd-powermac, for those machines - * that have a layout-id property for now */ - printk(KERN_INFO "snd-powermac no longer handles any " - "machines with a layout-id property " - "in the device-tree, use snd-aoa.\n"); - of_node_put(sound); - of_node_put(chip->node); - chip->node = NULL; - return -ENODEV; - } - /* This should be verified on older screamers */ - if (of_device_is_compatible(sound, "screamer")) { - chip->model = PMAC_SCREAMER; - // chip->can_byte_swap = 0; /* FIXME: check this */ - } - if (of_device_is_compatible(sound, "burgundy")) { - chip->model = PMAC_BURGUNDY; - chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ - } - if (of_device_is_compatible(sound, "daca")) { - chip->model = PMAC_DACA; - chip->can_capture = 0; /* no capture */ - chip->can_duplex = 0; - // chip->can_byte_swap = 0; /* FIXME: check this */ - chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ - } - if (of_device_is_compatible(sound, "tumbler")) { - chip->model = PMAC_TUMBLER; - chip->can_capture = of_machine_is_compatible("PowerMac4,2") - || of_machine_is_compatible("PowerBook3,2") - || of_machine_is_compatible("PowerBook3,3") - || of_machine_is_compatible("PowerBook4,1") - || of_machine_is_compatible("PowerBook4,2") - || of_machine_is_compatible("PowerBook4,3"); - chip->can_duplex = 0; - // chip->can_byte_swap = 0; /* FIXME: check this */ - chip->num_freqs = ARRAY_SIZE(tumbler_freqs); - chip->freq_table = tumbler_freqs; - chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ - } - if (of_device_is_compatible(sound, "snapper")) { - chip->model = PMAC_SNAPPER; - // chip->can_byte_swap = 0; /* FIXME: check this */ - chip->num_freqs = ARRAY_SIZE(tumbler_freqs); - chip->freq_table = tumbler_freqs; - chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ - } - prop = of_get_property(sound, "device-id", NULL); - if (prop) - chip->device_id = *prop; - dn = of_find_node_by_name(NULL, "perch"); - chip->has_iic = (dn != NULL); - of_node_put(dn); - - /* We need the PCI device for DMA allocations, let's use a crude method - * for now ... - */ - macio = macio_find(chip->node, macio_unknown); - if (macio == NULL) - printk(KERN_WARNING "snd-powermac: can't locate macio !\n"); - else { - struct pci_dev *pdev = NULL; - - for_each_pci_dev(pdev) { - struct device_node *np = pci_device_to_OF_node(pdev); - if (np && np == macio->of_node) { - chip->pdev = pdev; - break; - } - } - } - if (chip->pdev == NULL) - printk(KERN_WARNING "snd-powermac: can't locate macio PCI" - " device !\n"); - - detect_byte_swap(chip); - - /* look for a property saying what sample rates - are available */ - prop = of_get_property(sound, "sample-rates", &l); - if (! prop) - prop = of_get_property(sound, "output-frame-rates", &l); - if (prop) { - int i; - chip->freqs_ok = 0; - for (l /= sizeof(int); l > 0; --l) { - unsigned int r = *prop++; - /* Apple 'Fixed' format */ - if (r >= 0x10000) - r >>= 16; - for (i = 0; i < chip->num_freqs; ++i) { - if (r == chip->freq_table[i]) { - chip->freqs_ok |= (1 << i); - break; - } - } - } - } else { - /* assume only 44.1khz */ - chip->freqs_ok = 1; - } - - of_node_put(sound); - return 0; -} - -#ifdef PMAC_SUPPORT_AUTOMUTE -/* - * auto-mute - */ -static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); - ucontrol->value.integer.value[0] = chip->auto_mute; - return 0; -} - -static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); - if (ucontrol->value.integer.value[0] != chip->auto_mute) { - chip->auto_mute = !!ucontrol->value.integer.value[0]; - if (chip->update_automute) - chip->update_automute(chip, 1); - return 1; - } - return 0; -} - -static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); - if (chip->detect_headphone) - ucontrol->value.integer.value[0] = chip->detect_headphone(chip); - else - ucontrol->value.integer.value[0] = 0; - return 0; -} - -static struct snd_kcontrol_new auto_mute_controls[] __devinitdata = { - { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Auto Mute Switch", - .info = snd_pmac_boolean_mono_info, - .get = pmac_auto_mute_get, - .put = pmac_auto_mute_put, - }, - { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Headphone Detection", - .access = SNDRV_CTL_ELEM_ACCESS_READ, - .info = snd_pmac_boolean_mono_info, - .get = pmac_hp_detect_get, - }, -}; - -int __devinit snd_pmac_add_automute(struct snd_pmac *chip) -{ - int err; - chip->auto_mute = 1; - err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); - if (err < 0) { - printk(KERN_ERR "snd-powermac: Failed to add automute control\n"); - return err; - } - chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); - return snd_ctl_add(chip->card, chip->hp_detect_ctl); -} -#endif /* PMAC_SUPPORT_AUTOMUTE */ - -/* - * create and detect a pmac chip record - */ -int __devinit snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return) -{ - struct snd_pmac *chip; - struct device_node *np; - int i, err; - unsigned int irq; - unsigned long ctrl_addr, txdma_addr, rxdma_addr; - static struct snd_device_ops ops = { - .dev_free = snd_pmac_dev_free, - }; - - *chip_return = NULL; - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) - return -ENOMEM; - chip->card = card; - - spin_lock_init(&chip->reg_lock); - chip->irq = chip->tx_irq = chip->rx_irq = -1; - - chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; - chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; - - if ((err = snd_pmac_detect(chip)) < 0) - goto __error; - - if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || - snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || - snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 || - snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) { - err = -ENOMEM; - goto __error; - } - - np = chip->node; - chip->requested = 0; - if (chip->is_k2) { - static char *rnames[] = { - "Sound Control", "Sound DMA" }; - for (i = 0; i < 2; i ++) { - if (of_address_to_resource(np->parent, i, - &chip->rsrc[i])) { - printk(KERN_ERR "snd: can't translate rsrc " - " %d (%s)\n", i, rnames[i]); - err = -ENODEV; - goto __error; - } - if (request_mem_region(chip->rsrc[i].start, - resource_size(&chip->rsrc[i]), - rnames[i]) == NULL) { - printk(KERN_ERR "snd: can't request rsrc " - " %d (%s: %pR)\n", - i, rnames[i], &chip->rsrc[i]); - err = -ENODEV; - goto __error; - } - chip->requested |= (1 << i); - } - ctrl_addr = chip->rsrc[0].start; - txdma_addr = chip->rsrc[1].start; - rxdma_addr = txdma_addr + 0x100; - } else { - static char *rnames[] = { - "Sound Control", "Sound Tx DMA", "Sound Rx DMA" }; - for (i = 0; i < 3; i ++) { - if (of_address_to_resource(np, i, - &chip->rsrc[i])) { - printk(KERN_ERR "snd: can't translate rsrc " - " %d (%s)\n", i, rnames[i]); - err = -ENODEV; - goto __error; - } - if (request_mem_region(chip->rsrc[i].start, - resource_size(&chip->rsrc[i]), - rnames[i]) == NULL) { - printk(KERN_ERR "snd: can't request rsrc " - " %d (%s: %pR)\n", - i, rnames[i], &chip->rsrc[i]); - err = -ENODEV; - goto __error; - } - chip->requested |= (1 << i); - } - ctrl_addr = chip->rsrc[0].start; - txdma_addr = chip->rsrc[1].start; - rxdma_addr = chip->rsrc[2].start; - } - - chip->awacs = ioremap(ctrl_addr, 0x1000); - chip->playback.dma = ioremap(txdma_addr, 0x100); - chip->capture.dma = ioremap(rxdma_addr, 0x100); - if (chip->model <= PMAC_BURGUNDY) { - irq = irq_of_parse_and_map(np, 0); - if (request_irq(irq, snd_pmac_ctrl_intr, 0, - "PMac", (void*)chip)) { - snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", - irq); - err = -EBUSY; - goto __error; - } - chip->irq = irq; - } - irq = irq_of_parse_and_map(np, 1); - if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){ - snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); - err = -EBUSY; - goto __error; - } - chip->tx_irq = irq; - irq = irq_of_parse_and_map(np, 2); - if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) { - snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); - err = -EBUSY; - goto __error; - } - chip->rx_irq = irq; - - snd_pmac_sound_feature(chip, 1); - - /* reset & enable interrupts */ - if (chip->model <= PMAC_BURGUNDY) - out_le32(&chip->awacs->control, chip->control_mask); - - /* Powerbooks have odd ways of enabling inputs such as - an expansion-bay CD or sound from an internal modem - or a PC-card modem. */ - if (chip->is_pbook_3400) { - /* Enable CD and PC-card sound inputs. */ - /* This is done by reading from address - * f301a000, + 0x10 to enable the expansion-bay - * CD sound input, + 0x80 to enable the PC-card - * sound input. The 0x100 enables the SCSI bus - * terminator power. - */ - chip->latch_base = ioremap (0xf301a000, 0x1000); - in_8(chip->latch_base + 0x190); - } else if (chip->is_pbook_G3) { - struct device_node* mio; - for (mio = chip->node->parent; mio; mio = mio->parent) { - if (strcmp(mio->name, "mac-io") == 0) { - struct resource r; - if (of_address_to_resource(mio, 0, &r) == 0) - chip->macio_base = - ioremap(r.start, 0x40); - break; - } - } - /* Enable CD sound input. */ - /* The relevant bits for writing to this byte are 0x8f. - * I haven't found out what the 0x80 bit does. - * For the 0xf bits, writing 3 or 7 enables the CD - * input, any other value disables it. Values - * 1, 3, 5, 7 enable the microphone. Values 0, 2, - * 4, 6, 8 - f enable the input from the modem. - */ - if (chip->macio_base) - out_8(chip->macio_base + 0x37, 3); - } - - /* Reset dbdma channels */ - snd_pmac_dbdma_reset(chip); - - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) - goto __error; - - *chip_return = chip; - return 0; - - __error: - snd_pmac_free(chip); - return err; -} - - -/* - * sleep notify for powerbook - */ - -#ifdef CONFIG_PM - -/* - * Save state when going to sleep, restore it afterwards. - */ - -void snd_pmac_suspend(struct snd_pmac *chip) -{ - unsigned long flags; - - snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); - if (chip->suspend) - chip->suspend(chip); - snd_pcm_suspend_all(chip->pcm); - spin_lock_irqsave(&chip->reg_lock, flags); - snd_pmac_beep_stop(chip); - spin_unlock_irqrestore(&chip->reg_lock, flags); - if (chip->irq >= 0) - disable_irq(chip->irq); - if (chip->tx_irq >= 0) - disable_irq(chip->tx_irq); - if (chip->rx_irq >= 0) - disable_irq(chip->rx_irq); - snd_pmac_sound_feature(chip, 0); -} - -void snd_pmac_resume(struct snd_pmac *chip) -{ - snd_pmac_sound_feature(chip, 1); - if (chip->resume) - chip->resume(chip); - /* enable CD sound input */ - if (chip->macio_base && chip->is_pbook_G3) - out_8(chip->macio_base + 0x37, 3); - else if (chip->is_pbook_3400) - in_8(chip->latch_base + 0x190); - - snd_pmac_pcm_set_format(chip); - - if (chip->irq >= 0) - enable_irq(chip->irq); - if (chip->tx_irq >= 0) - enable_irq(chip->tx_irq); - if (chip->rx_irq >= 0) - enable_irq(chip->rx_irq); - - snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); -} - -#endif /* CONFIG_PM */ - |