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Diffstat (limited to 'ANDROID_3.4.5/sound/pci/ca0106/ca_midi.c')
-rw-r--r--ANDROID_3.4.5/sound/pci/ca0106/ca_midi.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/ANDROID_3.4.5/sound/pci/ca0106/ca_midi.c b/ANDROID_3.4.5/sound/pci/ca0106/ca_midi.c
deleted file mode 100644
index c7885117..00000000
--- a/ANDROID_3.4.5/sound/pci/ca0106/ca_midi.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de>
- * Creative Audio MIDI, for the CA0106 Driver
- * Version: 0.0.1
- *
- * Changelog:
- * Implementation is based on mpu401 and emu10k1x and
- * tested with ca0106.
- * mpu401: Copyright (c) by Jaroslav Kysela <perex@perex.cz>
- * emu10k1x: Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
- *
- * 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 <linux/spinlock.h>
-#include <sound/core.h>
-#include <sound/rawmidi.h>
-
-#include "ca_midi.h"
-
-#define ca_midi_write_data(midi, data) midi->write(midi, data, 0)
-#define ca_midi_write_cmd(midi, data) midi->write(midi, data, 1)
-#define ca_midi_read_data(midi) midi->read(midi, 0)
-#define ca_midi_read_stat(midi) midi->read(midi, 1)
-#define ca_midi_input_avail(midi) (!(ca_midi_read_stat(midi) & midi->input_avail))
-#define ca_midi_output_ready(midi) (!(ca_midi_read_stat(midi) & midi->output_ready))
-
-static void ca_midi_clear_rx(struct snd_ca_midi *midi)
-{
- int timeout = 100000;
- for (; timeout > 0 && ca_midi_input_avail(midi); timeout--)
- ca_midi_read_data(midi);
-#ifdef CONFIG_SND_DEBUG
- if (timeout <= 0)
- snd_printk(KERN_ERR "ca_midi_clear_rx: timeout (status = 0x%x)\n",
- ca_midi_read_stat(midi));
-#endif
-}
-
-static void ca_midi_interrupt(struct snd_ca_midi *midi, unsigned int status)
-{
- unsigned char byte;
-
- if (midi->rmidi == NULL) {
- midi->interrupt_disable(midi,midi->tx_enable | midi->rx_enable);
- return;
- }
-
- spin_lock(&midi->input_lock);
- if ((status & midi->ipr_rx) && ca_midi_input_avail(midi)) {
- if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) {
- ca_midi_clear_rx(midi);
- } else {
- byte = ca_midi_read_data(midi);
- if(midi->substream_input)
- snd_rawmidi_receive(midi->substream_input, &byte, 1);
-
-
- }
- }
- spin_unlock(&midi->input_lock);
-
- spin_lock(&midi->output_lock);
- if ((status & midi->ipr_tx) && ca_midi_output_ready(midi)) {
- if (midi->substream_output &&
- snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
- ca_midi_write_data(midi, byte);
- } else {
- midi->interrupt_disable(midi,midi->tx_enable);
- }
- }
- spin_unlock(&midi->output_lock);
-
-}
-
-static void ca_midi_cmd(struct snd_ca_midi *midi, unsigned char cmd, int ack)
-{
- unsigned long flags;
- int timeout, ok;
-
- spin_lock_irqsave(&midi->input_lock, flags);
- ca_midi_write_data(midi, 0x00);
- /* ca_midi_clear_rx(midi); */
-
- ca_midi_write_cmd(midi, cmd);
- if (ack) {
- ok = 0;
- timeout = 10000;
- while (!ok && timeout-- > 0) {
- if (ca_midi_input_avail(midi)) {
- if (ca_midi_read_data(midi) == midi->ack)
- ok = 1;
- }
- }
- if (!ok && ca_midi_read_data(midi) == midi->ack)
- ok = 1;
- } else {
- ok = 1;
- }
- spin_unlock_irqrestore(&midi->input_lock, flags);
- if (!ok)
- snd_printk(KERN_ERR "ca_midi_cmd: 0x%x failed at 0x%x (status = 0x%x, data = 0x%x)!!!\n",
- cmd,
- midi->get_dev_id_port(midi->dev_id),
- ca_midi_read_stat(midi),
- ca_midi_read_data(midi));
-}
-
-static int ca_midi_input_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
- unsigned long flags;
-
- if (snd_BUG_ON(!midi->dev_id))
- return -ENXIO;
- spin_lock_irqsave(&midi->open_lock, flags);
- midi->midi_mode |= CA_MIDI_MODE_INPUT;
- midi->substream_input = substream;
- if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT)) {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- ca_midi_cmd(midi, midi->reset, 1);
- ca_midi_cmd(midi, midi->enter_uart, 1);
- } else {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- }
- return 0;
-}
-
-static int ca_midi_output_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
- unsigned long flags;
-
- if (snd_BUG_ON(!midi->dev_id))
- return -ENXIO;
- spin_lock_irqsave(&midi->open_lock, flags);
- midi->midi_mode |= CA_MIDI_MODE_OUTPUT;
- midi->substream_output = substream;
- if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- ca_midi_cmd(midi, midi->reset, 1);
- ca_midi_cmd(midi, midi->enter_uart, 1);
- } else {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- }
- return 0;
-}
-
-static int ca_midi_input_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
- unsigned long flags;
-
- if (snd_BUG_ON(!midi->dev_id))
- return -ENXIO;
- spin_lock_irqsave(&midi->open_lock, flags);
- midi->interrupt_disable(midi,midi->rx_enable);
- midi->midi_mode &= ~CA_MIDI_MODE_INPUT;
- midi->substream_input = NULL;
- if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT)) {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- ca_midi_cmd(midi, midi->reset, 0);
- } else {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- }
- return 0;
-}
-
-static int ca_midi_output_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
- unsigned long flags;
-
- if (snd_BUG_ON(!midi->dev_id))
- return -ENXIO;
-
- spin_lock_irqsave(&midi->open_lock, flags);
-
- midi->interrupt_disable(midi,midi->tx_enable);
- midi->midi_mode &= ~CA_MIDI_MODE_OUTPUT;
- midi->substream_output = NULL;
-
- if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- ca_midi_cmd(midi, midi->reset, 0);
- } else {
- spin_unlock_irqrestore(&midi->open_lock, flags);
- }
- return 0;
-}
-
-static void ca_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
-
- if (snd_BUG_ON(!midi->dev_id))
- return;
-
- if (up) {
- midi->interrupt_enable(midi,midi->rx_enable);
- } else {
- midi->interrupt_disable(midi, midi->rx_enable);
- }
-}
-
-static void ca_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
-{
- struct snd_ca_midi *midi = substream->rmidi->private_data;
- unsigned long flags;
-
- if (snd_BUG_ON(!midi->dev_id))
- return;
-
- if (up) {
- int max = 4;
- unsigned char byte;
-
- spin_lock_irqsave(&midi->output_lock, flags);
-
- /* try to send some amount of bytes here before interrupts */
- while (max > 0) {
- if (ca_midi_output_ready(midi)) {
- if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT) ||
- snd_rawmidi_transmit(substream, &byte, 1) != 1) {
- /* no more data */
- spin_unlock_irqrestore(&midi->output_lock, flags);
- return;
- }
- ca_midi_write_data(midi, byte);
- max--;
- } else {
- break;
- }
- }
-
- spin_unlock_irqrestore(&midi->output_lock, flags);
- midi->interrupt_enable(midi,midi->tx_enable);
-
- } else {
- midi->interrupt_disable(midi,midi->tx_enable);
- }
-}
-
-static struct snd_rawmidi_ops ca_midi_output =
-{
- .open = ca_midi_output_open,
- .close = ca_midi_output_close,
- .trigger = ca_midi_output_trigger,
-};
-
-static struct snd_rawmidi_ops ca_midi_input =
-{
- .open = ca_midi_input_open,
- .close = ca_midi_input_close,
- .trigger = ca_midi_input_trigger,
-};
-
-static void ca_midi_free(struct snd_ca_midi *midi)
-{
- midi->interrupt = NULL;
- midi->interrupt_enable = NULL;
- midi->interrupt_disable = NULL;
- midi->read = NULL;
- midi->write = NULL;
- midi->get_dev_id_card = NULL;
- midi->get_dev_id_port = NULL;
- midi->rmidi = NULL;
-}
-
-static void ca_rmidi_free(struct snd_rawmidi *rmidi)
-{
- ca_midi_free(rmidi->private_data);
-}
-
-int __devinit ca_midi_init(void *dev_id, struct snd_ca_midi *midi, int device, char *name)
-{
- struct snd_rawmidi *rmidi;
- int err;
-
- if ((err = snd_rawmidi_new(midi->get_dev_id_card(midi->dev_id), name, device, 1, 1, &rmidi)) < 0)
- return err;
-
- midi->dev_id = dev_id;
- midi->interrupt = ca_midi_interrupt;
-
- spin_lock_init(&midi->open_lock);
- spin_lock_init(&midi->input_lock);
- spin_lock_init(&midi->output_lock);
-
- strcpy(rmidi->name, name);
- snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &ca_midi_output);
- snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &ca_midi_input);
- rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
- SNDRV_RAWMIDI_INFO_INPUT |
- SNDRV_RAWMIDI_INFO_DUPLEX;
- rmidi->private_data = midi;
- rmidi->private_free = ca_rmidi_free;
-
- midi->rmidi = rmidi;
- return 0;
-}
-
generated by cgit (git 2.34.1) at 2024-12-21 18:08:02 +0000