![Grant Likely](/assets/img/avatar_default.png)
There are a bunch of users open coding the for_each_node_by_name() by calling of_find_node_by_name() directly instead of using the macro. This is getting in the way of some cleanups, and the possibility of removing of_find_node_by_name() entirely. Clean it up so that all the users are consistent. Signed-off-by: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Takashi Iwai <tiwai@suse.de>
1413 lines
37 KiB
C
1413 lines
37 KiB
C
/*
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* PMac DBDMA lowlevel functions
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*
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* Copyright (c) by Takashi Iwai <tiwai@suse.de>
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* code based on dmasound.c.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <sound/core.h>
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#include "pmac.h"
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#include <sound/pcm_params.h>
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#include <asm/pmac_feature.h>
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#include <asm/pci-bridge.h>
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/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
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static int awacs_freqs[8] = {
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44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
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};
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/* fixed frequency table for tumbler */
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static int tumbler_freqs[1] = {
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44100
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};
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/*
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* we will allocate a single 'emergency' dbdma cmd block to use if the
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* tx status comes up "DEAD". This happens on some PowerComputing Pmac
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* clones, either owing to a bug in dbdma or some interaction between
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* IDE and sound. However, this measure would deal with DEAD status if
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* it appeared elsewhere.
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*/
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static struct pmac_dbdma emergency_dbdma;
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static int emergency_in_use;
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/*
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* allocate DBDMA command arrays
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*/
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static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
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{
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unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
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rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
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&rec->dma_base, GFP_KERNEL);
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if (rec->space == NULL)
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return -ENOMEM;
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rec->size = size;
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memset(rec->space, 0, rsize);
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rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
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rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
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return 0;
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}
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static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
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{
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if (rec->space) {
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unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
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dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
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}
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}
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/*
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* pcm stuff
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*/
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/*
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* look up frequency table
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*/
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unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
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{
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int i, ok, found;
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ok = rec->cur_freqs;
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if (rate > chip->freq_table[0])
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return 0;
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found = 0;
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for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
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if (! (ok & 1)) continue;
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found = i;
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if (rate >= chip->freq_table[i])
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break;
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}
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return found;
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}
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/*
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* check whether another stream is active
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*/
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static inline int another_stream(int stream)
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{
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return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
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SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
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}
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/*
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* allocate buffers
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*/
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static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
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struct snd_pcm_hw_params *hw_params)
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{
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return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
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}
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/*
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* release buffers
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*/
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static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
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{
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snd_pcm_lib_free_pages(subs);
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return 0;
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}
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/*
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* get a stream of the opposite direction
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*/
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static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
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{
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switch (stream) {
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case SNDRV_PCM_STREAM_PLAYBACK:
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return &chip->playback;
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case SNDRV_PCM_STREAM_CAPTURE:
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return &chip->capture;
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default:
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snd_BUG();
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return NULL;
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}
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}
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/*
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* wait while run status is on
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*/
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static inline void
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snd_pmac_wait_ack(struct pmac_stream *rec)
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{
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int timeout = 50000;
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while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
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udelay(1);
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}
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/*
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* set the format and rate to the chip.
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* call the lowlevel function if defined (e.g. for AWACS).
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*/
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static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
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{
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/* set up frequency and format */
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out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
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out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
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if (chip->set_format)
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chip->set_format(chip);
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}
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/*
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* stop the DMA transfer
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*/
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static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
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{
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out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
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snd_pmac_wait_ack(rec);
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}
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/*
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* set the command pointer address
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*/
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static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
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{
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out_le32(&rec->dma->cmdptr, cmd->addr);
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}
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/*
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* start the DMA
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*/
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static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
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{
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out_le32(&rec->dma->control, status | (status << 16));
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}
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/*
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* prepare playback/capture stream
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*/
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static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
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{
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int i;
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volatile struct dbdma_cmd __iomem *cp;
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struct snd_pcm_runtime *runtime = subs->runtime;
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int rate_index;
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long offset;
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struct pmac_stream *astr;
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rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
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rec->period_size = snd_pcm_lib_period_bytes(subs);
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rec->nperiods = rec->dma_size / rec->period_size;
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rec->cur_period = 0;
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rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
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/* set up constraints */
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astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
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if (! astr)
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return -EINVAL;
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astr->cur_freqs = 1 << rate_index;
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astr->cur_formats = 1 << runtime->format;
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chip->rate_index = rate_index;
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chip->format = runtime->format;
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/* We really want to execute a DMA stop command, after the AWACS
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* is initialized.
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* For reasons I don't understand, it stops the hissing noise
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* common to many PowerBook G3 systems and random noise otherwise
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* captured on iBook2's about every third time. -ReneR
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*/
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spin_lock_irq(&chip->reg_lock);
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snd_pmac_dma_stop(rec);
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st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
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snd_pmac_dma_set_command(rec, &chip->extra_dma);
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snd_pmac_dma_run(rec, RUN);
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spin_unlock_irq(&chip->reg_lock);
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mdelay(5);
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spin_lock_irq(&chip->reg_lock);
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/* continuous DMA memory type doesn't provide the physical address,
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* so we need to resolve the address here...
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*/
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offset = runtime->dma_addr;
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for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
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st_le32(&cp->phy_addr, offset);
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st_le16(&cp->req_count, rec->period_size);
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/*st_le16(&cp->res_count, 0);*/
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st_le16(&cp->xfer_status, 0);
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offset += rec->period_size;
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}
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/* make loop */
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st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
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st_le32(&cp->cmd_dep, rec->cmd.addr);
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snd_pmac_dma_stop(rec);
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snd_pmac_dma_set_command(rec, &rec->cmd);
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spin_unlock_irq(&chip->reg_lock);
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return 0;
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}
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/*
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* PCM trigger/stop
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*/
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static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
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struct snd_pcm_substream *subs, int cmd)
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{
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volatile struct dbdma_cmd __iomem *cp;
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int i, command;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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if (rec->running)
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return -EBUSY;
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command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
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OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
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spin_lock(&chip->reg_lock);
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snd_pmac_beep_stop(chip);
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snd_pmac_pcm_set_format(chip);
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for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
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out_le16(&cp->command, command);
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snd_pmac_dma_set_command(rec, &rec->cmd);
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(void)in_le32(&rec->dma->status);
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snd_pmac_dma_run(rec, RUN|WAKE);
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rec->running = 1;
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spin_unlock(&chip->reg_lock);
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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spin_lock(&chip->reg_lock);
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rec->running = 0;
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/*printk(KERN_DEBUG "stopped!!\n");*/
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snd_pmac_dma_stop(rec);
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for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
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out_le16(&cp->command, DBDMA_STOP);
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spin_unlock(&chip->reg_lock);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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/*
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* return the current pointer
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*/
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inline
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static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
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struct pmac_stream *rec,
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struct snd_pcm_substream *subs)
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{
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int count = 0;
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#if 1 /* hmm.. how can we get the current dma pointer?? */
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int stat;
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volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
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stat = ld_le16(&cp->xfer_status);
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if (stat & (ACTIVE|DEAD)) {
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count = in_le16(&cp->res_count);
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if (count)
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count = rec->period_size - count;
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}
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#endif
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count += rec->cur_period * rec->period_size;
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/*printk(KERN_DEBUG "pointer=%d\n", count);*/
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return bytes_to_frames(subs->runtime, count);
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}
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/*
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* playback
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*/
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static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
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}
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static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
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int cmd)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
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}
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static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
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}
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/*
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* capture
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*/
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static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
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}
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static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
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int cmd)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
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}
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static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
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{
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struct snd_pmac *chip = snd_pcm_substream_chip(subs);
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return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
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}
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/*
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* Handle DEAD DMA transfers:
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* if the TX status comes up "DEAD" - reported on some Power Computing machines
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* we need to re-start the dbdma - but from a different physical start address
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* and with a different transfer length. It would get very messy to do this
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* with the normal dbdma_cmd blocks - we would have to re-write the buffer start
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* addresses each time. So, we will keep a single dbdma_cmd block which can be
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* fiddled with.
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* When DEAD status is first reported the content of the faulted dbdma block is
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* copied into the emergency buffer and we note that the buffer is in use.
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* we then bump the start physical address by the amount that was successfully
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* output before it died.
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* On any subsequent DEAD result we just do the bump-ups (we know that we are
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* already using the emergency dbdma_cmd).
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* CHECK: this just tries to "do it". It is possible that we should abandon
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* xfers when the number of residual bytes gets below a certain value - I can
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* see that this might cause a loop-forever if a too small transfer causes
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* DEAD status. However this is a TODO for now - we'll see what gets reported.
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* When we get a successful transfer result with the emergency buffer we just
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* pretend that it completed using the original dmdma_cmd and carry on. The
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* 'next_cmd' field will already point back to the original loop of blocks.
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*/
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static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
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volatile struct dbdma_cmd __iomem *cp)
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{
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unsigned short req, res ;
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unsigned int phy ;
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/* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */
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/* to clear DEAD status we must first clear RUN
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set it to quiescent to be on the safe side */
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(void)in_le32(&rec->dma->status);
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out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
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if (!emergency_in_use) { /* new problem */
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memcpy((void *)emergency_dbdma.cmds, (void *)cp,
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sizeof(struct dbdma_cmd));
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emergency_in_use = 1;
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st_le16(&cp->xfer_status, 0);
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st_le16(&cp->req_count, rec->period_size);
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cp = emergency_dbdma.cmds;
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}
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/* now bump the values to reflect the amount
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we haven't yet shifted */
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req = ld_le16(&cp->req_count);
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res = ld_le16(&cp->res_count);
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phy = ld_le32(&cp->phy_addr);
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phy += (req - res);
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st_le16(&cp->req_count, res);
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st_le16(&cp->res_count, 0);
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st_le16(&cp->xfer_status, 0);
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st_le32(&cp->phy_addr, phy);
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st_le32(&cp->cmd_dep, rec->cmd.addr
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+ sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
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st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
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/* point at our patched up command block */
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out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
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/* we must re-start the controller */
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(void)in_le32(&rec->dma->status);
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/* should complete clearing the DEAD status */
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out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
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}
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/*
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* update playback/capture pointer from interrupts
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*/
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static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
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{
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volatile struct dbdma_cmd __iomem *cp;
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int c;
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int stat;
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spin_lock(&chip->reg_lock);
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if (rec->running) {
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for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
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if (emergency_in_use) /* already using DEAD xfer? */
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cp = emergency_dbdma.cmds;
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else
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cp = &rec->cmd.cmds[rec->cur_period];
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stat = ld_le16(&cp->xfer_status);
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if (stat & DEAD) {
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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 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 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 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) {
|
|
for_each_node_by_name(sound, "sound")
|
|
if (sound->parent == chip->node)
|
|
break;
|
|
}
|
|
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[] = {
|
|
{ .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 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 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 */
|
|
|