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Linux-2.6.12-rc2

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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
This commit is contained in:
Linus Torvalds
2005-04-16 15:20:36 -07:00
commit 1da177e4c3
17291 changed files with 6718755 additions and 0 deletions
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15
sound/parisc/Kconfig Normal file
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@@ -0,0 +1,15 @@
# ALSA PA-RISC drivers
menu "GSC devices"
depends on SND!=n && GSC
config SND_HARMONY
tristate "Harmony/Vivace sound chip"
depends on SND
select SND_PCM
help
Say 'Y' or 'M' to include support for the Harmony/Vivace sound
chip found in most GSC-based PA-RISC workstations. It's frequently
provided as part of the Lasi multi-function IC.
endmenu

8
sound/parisc/Makefile Normal file
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@@ -0,0 +1,8 @@
#
# Makefile for ALSA
#
snd-harmony-objs := harmony.o
# Toplevel Module Dependency
obj-$(CONFIG_SND_HARMONY) += snd-harmony.o

993
sound/parisc/harmony.c Normal file
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@@ -0,0 +1,993 @@
/* Hewlett-Packard Harmony audio driver
*
* This is a driver for the Harmony audio chipset found
* on the LASI ASIC of various early HP PA-RISC workstations.
*
* Copyright (C) 2004, Kyle McMartin <kyle@{debian.org,parisc-linux.org}>
*
* Based on the previous Harmony incarnations by,
* Copyright 2000 (c) Linuxcare Canada, Alex deVries
* Copyright 2000-2003 (c) Helge Deller
* Copyright 2001 (c) Matthieu Delahaye
* Copyright 2001 (c) Jean-Christophe Vaugeois
* Copyright 2003 (c) Laurent Canet
* Copyright 2004 (c) Stuart Brady
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Notes:
* - graveyard and silence buffers last for lifetime of
* the driver. playback and capture buffers are allocated
* per _open()/_close().
*
* TODO:
*
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/control.h>
#include <sound/rawmidi.h>
#include <sound/initval.h>
#include <sound/info.h>
#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/parisc-device.h>
#include "harmony.h"
static struct parisc_device_id snd_harmony_devtable[] = {
/* bushmaster / flounder */
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
/* 712 / 715 */
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
/* pace */
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
/* outfield / coral II */
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
{ 0, }
};
MODULE_DEVICE_TABLE(parisc, snd_harmony_devtable);
#define NAME "harmony"
#define PFX NAME ": "
static unsigned int snd_harmony_rates[] = {
5512, 6615, 8000, 9600,
11025, 16000, 18900, 22050,
27428, 32000, 33075, 37800,
44100, 48000
};
static unsigned int rate_bits[14] = {
HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ,
HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ,
HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ,
HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ,
HARMONY_SR_44KHZ, HARMONY_SR_48KHZ
};
static snd_pcm_hw_constraint_list_t hw_constraint_rates = {
.count = ARRAY_SIZE(snd_harmony_rates),
.list = snd_harmony_rates,
.mask = 0,
};
inline unsigned long
harmony_read(harmony_t *h, unsigned r)
{
return __raw_readl(h->iobase + r);
}
inline void
harmony_write(harmony_t *h, unsigned r, unsigned long v)
{
__raw_writel(v, h->iobase + r);
}
static void
harmony_wait_for_control(harmony_t *h)
{
while (harmony_read(h, HARMONY_CNTL) & HARMONY_CNTL_C) ;
}
inline void
harmony_reset(harmony_t *h)
{
harmony_write(h, HARMONY_RESET, 1);
mdelay(50);
harmony_write(h, HARMONY_RESET, 0);
}
static void
harmony_disable_interrupts(harmony_t *h)
{
u32 dstatus;
harmony_wait_for_control(h);
dstatus = harmony_read(h, HARMONY_DSTATUS);
dstatus &= ~HARMONY_DSTATUS_IE;
harmony_write(h, HARMONY_DSTATUS, dstatus);
}
static void
harmony_enable_interrupts(harmony_t *h)
{
u32 dstatus;
harmony_wait_for_control(h);
dstatus = harmony_read(h, HARMONY_DSTATUS);
dstatus |= HARMONY_DSTATUS_IE;
harmony_write(h, HARMONY_DSTATUS, dstatus);
}
static void
harmony_mute(harmony_t *h)
{
unsigned long flags;
spin_lock_irqsave(&h->mixer_lock, flags);
harmony_wait_for_control(h);
harmony_write(h, HARMONY_GAINCTL, HARMONY_GAIN_SILENCE);
spin_unlock_irqrestore(&h->mixer_lock, flags);
}
static void
harmony_unmute(harmony_t *h)
{
unsigned long flags;
spin_lock_irqsave(&h->mixer_lock, flags);
harmony_wait_for_control(h);
harmony_write(h, HARMONY_GAINCTL, h->st.gain);
spin_unlock_irqrestore(&h->mixer_lock, flags);
}
static void
harmony_set_control(harmony_t *h)
{
u32 ctrl;
unsigned long flags;
spin_lock_irqsave(&h->lock, flags);
ctrl = (HARMONY_CNTL_C |
(h->st.format << 6) |
(h->st.stereo << 5) |
(h->st.rate));
harmony_wait_for_control(h);
harmony_write(h, HARMONY_CNTL, ctrl);
spin_unlock_irqrestore(&h->lock, flags);
}
static irqreturn_t
snd_harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
{
u32 dstatus;
harmony_t *h = dev;
spin_lock(&h->lock);
harmony_disable_interrupts(h);
harmony_wait_for_control(h);
dstatus = harmony_read(h, HARMONY_DSTATUS);
spin_unlock(&h->lock);
if (dstatus & HARMONY_DSTATUS_PN) {
if (h->psubs) {
spin_lock(&h->lock);
h->pbuf.buf += h->pbuf.count; /* PAGE_SIZE */
h->pbuf.buf %= h->pbuf.size; /* MAX_BUFS*PAGE_SIZE */
harmony_write(h, HARMONY_PNXTADD,
h->pbuf.addr + h->pbuf.buf);
h->stats.play_intr++;
spin_unlock(&h->lock);
snd_pcm_period_elapsed(h->psubs);
} else {
spin_lock(&h->lock);
harmony_write(h, HARMONY_PNXTADD, h->sdma.addr);
h->stats.silence_intr++;
spin_unlock(&h->lock);
}
}
if (dstatus & HARMONY_DSTATUS_RN) {
if (h->csubs) {
spin_lock(&h->lock);
h->cbuf.buf += h->cbuf.count;
h->cbuf.buf %= h->cbuf.size;
harmony_write(h, HARMONY_RNXTADD,
h->cbuf.addr + h->cbuf.buf);
h->stats.rec_intr++;
spin_unlock(&h->lock);
snd_pcm_period_elapsed(h->csubs);
} else {
spin_lock(&h->lock);
harmony_write(h, HARMONY_RNXTADD, h->gdma.addr);
h->stats.graveyard_intr++;
spin_unlock(&h->lock);
}
}
spin_lock(&h->lock);
harmony_enable_interrupts(h);
spin_unlock(&h->lock);
return IRQ_HANDLED;
}
static unsigned int
snd_harmony_rate_bits(int rate)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(snd_harmony_rates); i++)
if (snd_harmony_rates[i] == rate)
return rate_bits[i];
return HARMONY_SR_44KHZ;
}
static snd_pcm_hardware_t snd_harmony_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BLOCK_TRANSFER),
.formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW |
SNDRV_PCM_FMTBIT_A_LAW),
.rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_KNOT),
.rate_min = 5512,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = MAX_BUF_SIZE,
.period_bytes_min = BUF_SIZE,
.period_bytes_max = BUF_SIZE,
.periods_min = 1,
.periods_max = MAX_BUFS,
.fifo_size = 0,
};
static snd_pcm_hardware_t snd_harmony_capture =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BLOCK_TRANSFER),
.formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW |
SNDRV_PCM_FMTBIT_A_LAW),
.rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_KNOT),
.rate_min = 5512,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = MAX_BUF_SIZE,
.period_bytes_min = BUF_SIZE,
.period_bytes_max = BUF_SIZE,
.periods_min = 1,
.periods_max = MAX_BUFS,
.fifo_size = 0,
};
static int
snd_harmony_playback_trigger(snd_pcm_substream_t *ss, int cmd)
{
harmony_t *h = snd_pcm_substream_chip(ss);
unsigned long flags;
if (h->st.capturing)
return -EBUSY;
spin_lock_irqsave(&h->lock, flags);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
h->st.playing = 1;
harmony_write(h, HARMONY_PNXTADD, h->pbuf.addr);
harmony_write(h, HARMONY_RNXTADD, h->gdma.addr);
harmony_unmute(h);
harmony_enable_interrupts(h);
break;
case SNDRV_PCM_TRIGGER_STOP:
h->st.playing = 0;
harmony_mute(h);
harmony_disable_interrupts(h);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_SUSPEND:
default:
spin_unlock_irqrestore(&h->lock, flags);
snd_BUG();
return -EINVAL;
}
spin_unlock_irqrestore(&h->lock, flags);
return 0;
}
static int
snd_harmony_capture_trigger(snd_pcm_substream_t *ss, int cmd)
{
harmony_t *h = snd_pcm_substream_chip(ss);
unsigned long flags;
if (h->st.playing)
return -EBUSY;
spin_lock_irqsave(&h->lock, flags);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
h->st.capturing = 1;
harmony_write(h, HARMONY_PNXTADD, h->sdma.addr);
harmony_write(h, HARMONY_RNXTADD, h->cbuf.addr);
harmony_unmute(h);
harmony_enable_interrupts(h);
break;
case SNDRV_PCM_TRIGGER_STOP:
h->st.capturing = 0;
harmony_mute(h);
harmony_disable_interrupts(h);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_SUSPEND:
default:
spin_unlock_irqrestore(&h->lock, flags);
snd_BUG();
return -EINVAL;
}
spin_unlock_irqrestore(&h->lock, flags);
return 0;
}
static int
snd_harmony_set_data_format(harmony_t *h, int fmt, int force)
{
int o = h->st.format;
int n;
switch(fmt) {
case SNDRV_PCM_FORMAT_S16_BE:
n = HARMONY_DF_16BIT_LINEAR;
break;
case SNDRV_PCM_FORMAT_A_LAW:
n = HARMONY_DF_8BIT_ALAW;
break;
case SNDRV_PCM_FORMAT_MU_LAW:
n = HARMONY_DF_8BIT_ULAW;
break;
default:
n = HARMONY_DF_16BIT_LINEAR;
break;
}
if (force || o != n) {
snd_pcm_format_set_silence(fmt, h->sdma.area, SILENCE_BUFSZ /
(snd_pcm_format_physical_width(fmt)
/ 8));
}
return n;
}
static int
snd_harmony_playback_prepare(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
snd_pcm_runtime_t *rt = ss->runtime;
if (h->st.capturing)
return -EBUSY;
h->pbuf.size = snd_pcm_lib_buffer_bytes(ss);
h->pbuf.count = snd_pcm_lib_period_bytes(ss);
h->pbuf.buf = 0;
h->st.playing = 0;
h->st.rate = snd_harmony_rate_bits(rt->rate);
h->st.format = snd_harmony_set_data_format(h, rt->format, 0);
if (rt->channels == 2)
h->st.stereo = HARMONY_SS_STEREO;
else
h->st.stereo = HARMONY_SS_MONO;
harmony_set_control(h);
h->pbuf.addr = rt->dma_addr;
return 0;
}
static int
snd_harmony_capture_prepare(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
snd_pcm_runtime_t *rt = ss->runtime;
if (h->st.playing)
return -EBUSY;
h->cbuf.size = snd_pcm_lib_buffer_bytes(ss);
h->cbuf.count = snd_pcm_lib_period_bytes(ss);
h->cbuf.buf = 0;
h->st.capturing = 0;
h->st.rate = snd_harmony_rate_bits(rt->rate);
h->st.format = snd_harmony_set_data_format(h, rt->format, 0);
if (rt->channels == 2)
h->st.stereo = HARMONY_SS_STEREO;
else
h->st.stereo = HARMONY_SS_MONO;
harmony_set_control(h);
h->cbuf.addr = rt->dma_addr;
return 0;
}
static snd_pcm_uframes_t
snd_harmony_playback_pointer(snd_pcm_substream_t *ss)
{
snd_pcm_runtime_t *rt = ss->runtime;
harmony_t *h = snd_pcm_substream_chip(ss);
unsigned long pcuradd;
unsigned long played;
if (!(h->st.playing) || (h->psubs == NULL))
return 0;
if ((h->pbuf.addr == 0) || (h->pbuf.size == 0))
return 0;
pcuradd = harmony_read(h, HARMONY_PCURADD);
played = pcuradd - h->pbuf.addr;
#ifdef HARMONY_DEBUG
printk(KERN_DEBUG PFX "playback_pointer is 0x%lx-0x%lx = %d bytes\n",
pcuradd, h->pbuf.addr, played);
#endif
if (pcuradd > h->pbuf.addr + h->pbuf.size) {
return 0;
}
return bytes_to_frames(rt, played);
}
static snd_pcm_uframes_t
snd_harmony_capture_pointer(snd_pcm_substream_t *ss)
{
snd_pcm_runtime_t *rt = ss->runtime;
harmony_t *h = snd_pcm_substream_chip(ss);
unsigned long rcuradd;
unsigned long caught;
if (!(h->st.capturing) || (h->csubs == NULL))
return 0;
if ((h->cbuf.addr == 0) || (h->cbuf.size == 0))
return 0;
rcuradd = harmony_read(h, HARMONY_RCURADD);
caught = rcuradd - h->cbuf.addr;
#ifdef HARMONY_DEBUG
printk(KERN_DEBUG PFX "capture_pointer is 0x%lx-0x%lx = %d bytes\n",
rcuradd, h->cbuf.addr, caught);
#endif
if (rcuradd > h->cbuf.addr + h->cbuf.size) {
return 0;
}
return bytes_to_frames(rt, caught);
}
static int
snd_harmony_playback_open(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
snd_pcm_runtime_t *rt = ss->runtime;
int err;
h->psubs = ss;
rt->hw = snd_harmony_playback;
snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE,
&hw_constraint_rates);
err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS);
if (err < 0)
return err;
return 0;
}
static int
snd_harmony_capture_open(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
snd_pcm_runtime_t *rt = ss->runtime;
int err;
h->csubs = ss;
rt->hw = snd_harmony_capture;
snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE,
&hw_constraint_rates);
err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS);
if (err < 0)
return err;
return 0;
}
static int
snd_harmony_playback_close(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
h->psubs = NULL;
return 0;
}
static int
snd_harmony_capture_close(snd_pcm_substream_t *ss)
{
harmony_t *h = snd_pcm_substream_chip(ss);
h->csubs = NULL;
return 0;
}
static int
snd_harmony_hw_params(snd_pcm_substream_t *ss,
snd_pcm_hw_params_t *hw)
{
int err;
harmony_t *h = snd_pcm_substream_chip(ss);
err = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw));
if (err > 0 && h->dma.type == SNDRV_DMA_TYPE_CONTINUOUS)
ss->runtime->dma_addr = __pa(ss->runtime->dma_area);
return err;
}
static int
snd_harmony_hw_free(snd_pcm_substream_t *ss)
{
return snd_pcm_lib_free_pages(ss);
}
static snd_pcm_ops_t snd_harmony_playback_ops = {
.open = snd_harmony_playback_open,
.close = snd_harmony_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_harmony_hw_params,
.hw_free = snd_harmony_hw_free,
.prepare = snd_harmony_playback_prepare,
.trigger = snd_harmony_playback_trigger,
.pointer = snd_harmony_playback_pointer,
};
static snd_pcm_ops_t snd_harmony_capture_ops = {
.open = snd_harmony_capture_open,
.close = snd_harmony_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_harmony_hw_params,
.hw_free = snd_harmony_hw_free,
.prepare = snd_harmony_capture_prepare,
.trigger = snd_harmony_capture_trigger,
.pointer = snd_harmony_capture_pointer,
};
static int
snd_harmony_pcm_init(harmony_t *h)
{
snd_pcm_t *pcm;
int err;
harmony_disable_interrupts(h);
err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_harmony_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_harmony_capture_ops);
pcm->private_data = h;
pcm->info_flags = 0;
strcpy(pcm->name, "harmony");
h->pcm = pcm;
h->psubs = NULL;
h->csubs = NULL;
/* initialize graveyard buffer */
h->dma.type = SNDRV_DMA_TYPE_DEV;
h->dma.dev = &h->dev->dev;
err = snd_dma_alloc_pages(h->dma.type,
h->dma.dev,
BUF_SIZE*GRAVEYARD_BUFS,
&h->gdma);
if (err < 0) {
printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n");
return err;
}
/* initialize silence buffers */
err = snd_dma_alloc_pages(h->dma.type,
h->dma.dev,
BUF_SIZE*SILENCE_BUFS,
&h->sdma);
if (err < 0) {
printk(KERN_ERR PFX "cannot allocate silence buffer!\n");
return err;
}
/* pre-allocate space for DMA */
err = snd_pcm_lib_preallocate_pages_for_all(pcm, h->dma.type,
h->dma.dev,
MAX_BUF_SIZE,
MAX_BUF_SIZE);
if (err < 0) {
printk(KERN_ERR PFX "buffer allocation error: %d\n", err);
return err;
}
h->st.format = snd_harmony_set_data_format(h,
SNDRV_PCM_FORMAT_S16_BE, 1);
return 0;
}
static void
snd_harmony_set_new_gain(harmony_t *h)
{
harmony_wait_for_control(h);
harmony_write(h, HARMONY_GAINCTL, h->st.gain);
}
static int
snd_harmony_mixercontrol_info(snd_kcontrol_t *kc,
snd_ctl_elem_info_t *uinfo)
{
int mask = (kc->private_value >> 16) & 0xff;
int left_shift = (kc->private_value) & 0xff;
int right_shift = (kc->private_value >> 8) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN :
SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = left_shift == right_shift ? 1 : 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int
snd_harmony_volume_get(snd_kcontrol_t *kc,
snd_ctl_elem_value_t *ucontrol)
{
harmony_t *h = snd_kcontrol_chip(kc);
int shift_left = (kc->private_value) & 0xff;
int shift_right = (kc->private_value >> 8) & 0xff;
int mask = (kc->private_value >> 16) & 0xff;
int invert = (kc->private_value >> 24) & 0xff;
int left, right;
unsigned long flags;
spin_lock_irqsave(&h->mixer_lock, flags);
left = (h->st.gain >> shift_left) & mask;
right = (h->st.gain >> shift_right) & mask;
if (invert) {
left = mask - left;
right = mask - right;
}
ucontrol->value.integer.value[0] = left;
ucontrol->value.integer.value[1] = right;
spin_unlock_irqrestore(&h->mixer_lock, flags);
return 0;
}
static int
snd_harmony_volume_put(snd_kcontrol_t *kc,
snd_ctl_elem_value_t *ucontrol)
{
harmony_t *h = snd_kcontrol_chip(kc);
int shift_left = (kc->private_value) & 0xff;
int shift_right = (kc->private_value >> 8) & 0xff;
int mask = (kc->private_value >> 16) & 0xff;
int invert = (kc->private_value >> 24) & 0xff;
int left, right;
int old_gain = h->st.gain;
unsigned long flags;
left = ucontrol->value.integer.value[0] & mask;
right = ucontrol->value.integer.value[1] & mask;
if (invert) {
left = mask - left;
right = mask - right;
}
spin_lock_irqsave(&h->mixer_lock, flags);
h->st.gain &= ~( (mask << shift_right) | (mask << shift_left) );
h->st.gain |= ( (left << shift_left) | (right << shift_right) );
snd_harmony_set_new_gain(h);
spin_unlock_irqrestore(&h->mixer_lock, flags);
return (old_gain - h->st.gain);
}
#define HARMONY_CONTROLS (sizeof(snd_harmony_controls)/ \
sizeof(snd_kcontrol_new_t))
#define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_harmony_mixercontrol_info, \
.get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \
.private_value = ((left_shift) | ((right_shift) << 8) | \
((mask) << 16) | ((invert) << 24)) }
static snd_kcontrol_new_t snd_harmony_controls[] = {
HARMONY_VOLUME("Playback Volume", HARMONY_GAIN_LO_SHIFT,
HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1),
HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT,
HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0),
};
static void __init
snd_harmony_mixer_reset(harmony_t *h)
{
harmony_mute(h);
harmony_reset(h);
h->st.gain = HARMONY_GAIN_DEFAULT;
harmony_unmute(h);
}
static int __init
snd_harmony_mixer_init(harmony_t *h)
{
snd_card_t *card = h->card;
int idx, err;
snd_assert(h != NULL, return -EINVAL);
strcpy(card->mixername, "Harmony Gain control interface");
for (idx = 0; idx < HARMONY_CONTROLS; idx++) {
err = snd_ctl_add(card,
snd_ctl_new1(&snd_harmony_controls[idx], h));
if (err < 0)
return err;
}
snd_harmony_mixer_reset(h);
return 0;
}
static int
snd_harmony_free(harmony_t *h)
{
if (h->gdma.addr)
snd_dma_free_pages(&h->gdma);
if (h->sdma.addr)
snd_dma_free_pages(&h->sdma);
if (h->irq >= 0)
free_irq(h->irq, h);
if (h->iobase)
iounmap(h->iobase);
parisc_set_drvdata(h->dev, NULL);
kfree(h);
return 0;
}
static int
snd_harmony_dev_free(snd_device_t *dev)
{
harmony_t *h = dev->device_data;
return snd_harmony_free(h);
}
static int __devinit
snd_harmony_create(snd_card_t *card,
struct parisc_device *padev,
harmony_t **rchip)
{
int err;
harmony_t *h;
static snd_device_ops_t ops = {
.dev_free = snd_harmony_dev_free,
};
*rchip = NULL;
h = kmalloc(sizeof(*h), GFP_KERNEL);
if (h == NULL)
return -ENOMEM;
memset(&h->st, 0, sizeof(h->st));
memset(&h->stats, 0, sizeof(h->stats));
memset(&h->pbuf, 0, sizeof(h->pbuf));
memset(&h->cbuf, 0, sizeof(h->cbuf));
h->hpa = padev->hpa;
h->card = card;
h->dev = padev;
h->irq = padev->irq;
h->iobase = ioremap_nocache(padev->hpa, HARMONY_SIZE);
if (h->iobase == NULL) {
printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n",
padev->hpa);
err = -EBUSY;
goto free_and_ret;
}
err = request_irq(h->irq, snd_harmony_interrupt, 0,
"harmony", h);
if (err) {
printk(KERN_ERR PFX "could not obtain interrupt %d",
h->irq);
goto free_and_ret;
}
spin_lock_init(&h->mixer_lock);
spin_lock_init(&h->lock);
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
h, &ops)) < 0) {
goto free_and_ret;
}
*rchip = h;
return 0;
free_and_ret:
snd_harmony_free(h);
return err;
}
static int __devinit
snd_harmony_probe(struct parisc_device *padev)
{
int err;
static int dev;
snd_card_t *card;
harmony_t *h;
static int index = SNDRV_DEFAULT_IDX1;
static char *id = SNDRV_DEFAULT_STR1;
h = parisc_get_drvdata(padev);
if (h != NULL) {
return -ENODEV;
}
card = snd_card_new(index, id, THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
err = snd_harmony_create(card, padev, &h);
if (err < 0) {
goto free_and_ret;
}
err = snd_harmony_pcm_init(h);
if (err < 0) {
goto free_and_ret;
}
err = snd_harmony_mixer_init(h);
if (err < 0) {
goto free_and_ret;
}
strcpy(card->driver, "harmony");
strcpy(card->shortname, "Harmony");
sprintf(card->longname, "%s at 0x%lx, irq %i",
card->shortname, h->hpa, h->irq);
err = snd_card_register(card);
if (err < 0) {
goto free_and_ret;
}
dev++;
parisc_set_drvdata(padev, h);
return 0;
free_and_ret:
snd_card_free(card);
return err;
}
static int __devexit
snd_harmony_remove(struct parisc_device *padev)
{
harmony_t *h = parisc_get_drvdata(padev);
snd_card_free(h->card);
return 0;
}
static struct parisc_driver snd_harmony_driver = {
.name = "harmony",
.id_table = snd_harmony_devtable,
.probe = snd_harmony_probe,
.remove = snd_harmony_remove,
};
static int __init
alsa_harmony_init(void)
{
int err;
err = register_parisc_driver(&snd_harmony_driver);
if (err < 0) {
printk(KERN_ERR PFX "device not found\n");
return err;
}
return 0;
}
static void __exit
alsa_harmony_fini(void)
{
int err;
err = unregister_parisc_driver(&snd_harmony_driver);
if (err < 0) {
printk(KERN_ERR PFX "failed to unregister\n");
}
return;
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>");
MODULE_DESCRIPTION("Harmony sound driver");
module_init(alsa_harmony_init);
module_exit(alsa_harmony_fini);

151
sound/parisc/harmony.h Normal file
View File

@@ -0,0 +1,151 @@
/* Hewlett-Packard Harmony audio driver
* Copyright (C) 2004, Kyle McMartin <kyle@parisc-linux.org>
*/
#ifndef __HARMONY_H__
#define __HARMONY_H__
struct harmony_buffer {
unsigned long addr;
int buf;
int count;
int size;
int coherent;
};
typedef struct snd_card_harmony {
int irq;
unsigned long hpa; /* hard physical address */
void __iomem *iobase; /* remapped io address */
struct parisc_device *dev;
struct {
u32 gain;
u32 rate;
u32 format;
u32 stereo;
int playing;
int capturing;
} st;
struct snd_dma_device dma; /* playback/capture */
struct harmony_buffer pbuf;
struct harmony_buffer cbuf;
struct snd_dma_buffer gdma; /* graveyard */
struct snd_dma_buffer sdma; /* silence */
struct {
unsigned long play_intr;
unsigned long rec_intr;
unsigned long graveyard_intr;
unsigned long silence_intr;
} stats;
snd_pcm_t *pcm;
snd_card_t *card;
snd_pcm_substream_t *psubs;
snd_pcm_substream_t *csubs;
snd_info_entry_t *proc;
spinlock_t lock;
spinlock_t mixer_lock;
} harmony_t;
#define MAX_PCM_DEVICES 1
#define MAX_PCM_SUBSTREAMS 4
#define MAX_MIDI_DEVICES 0
#define HARMONY_SIZE 64
#define BUF_SIZE PAGE_SIZE
#define MAX_BUFS 10
#define MAX_BUF_SIZE (MAX_BUFS * BUF_SIZE)
#define PLAYBACK_BUFS MAX_BUFS
#define RECORD_BUFS MAX_BUFS
#define GRAVEYARD_BUFS 1
#define GRAVEYARD_BUFSZ (GRAVEYARD_BUFS*BUF_SIZE)
#define SILENCE_BUFS 1
#define SILENCE_BUFSZ (SILENCE_BUFS*BUF_SIZE)
#define HARMONY_ID 0x000
#define HARMONY_RESET 0x004
#define HARMONY_CNTL 0x008
#define HARMONY_GAINCTL 0x00c
#define HARMONY_PNXTADD 0x010
#define HARMONY_PCURADD 0x014
#define HARMONY_RNXTADD 0x018
#define HARMONY_RCURADD 0x01c
#define HARMONY_DSTATUS 0x020
#define HARMONY_OV 0x024
#define HARMONY_PIO 0x028
#define HARMONY_DIAG 0x03c
#define HARMONY_CNTL_C 0x80000000
#define HARMONY_CNTL_ST 0x00000020
#define HARMONY_CNTL_44100 0x00000015 /* HARMONY_SR_44KHZ */
#define HARMONY_CNTL_8000 0x00000008 /* HARMONY_SR_8KHZ */
#define HARMONY_DSTATUS_ID 0x00000000 /* interrupts off */
#define HARMONY_DSTATUS_PN 0x00000200 /* playback fill */
#define HARMONY_DSTATUS_RN 0x00000002 /* record fill */
#define HARMONY_DSTATUS_IE 0x80000000 /* interrupts on */
#define HARMONY_DF_16BIT_LINEAR 0x00000000
#define HARMONY_DF_8BIT_ULAW 0x00000001
#define HARMONY_DF_8BIT_ALAW 0x00000002
#define HARMONY_SS_MONO 0x00000000
#define HARMONY_SS_STEREO 0x00000001
#define HARMONY_GAIN_SILENCE 0x00F00FFF
#define HARMONY_GAIN_DEFAULT 0x0FF00000
#define HARMONY_GAIN_HE_SHIFT 27
#define HARMONY_GAIN_HE_MASK (1 << HARMONY_GAIN_HE_SHIFT)
#define HARMONY_GAIN_LE_SHIFT 26
#define HARMONY_GAIN_LE_MASK (1 << HARMONY_GAIN_LE_SHIFT)
#define HARMONY_GAIN_SE_SHIFT 25
#define HARMONY_GAIN_SE_MASK (1 << HARMONY_GAIN_SE_SHIFT)
#define HARMONY_GAIN_IS_SHIFT 24
#define HARMONY_GAIN_IS_MASK (1 << HARMONY_GAIN_IS_SHIFT)
#define HARMONY_GAIN_MA 0x0f
#define HARMONY_GAIN_MA_SHIFT 20
#define HARMONY_GAIN_MA_MASK (HARMONY_GAIN_MA << HARMONY_GAIN_MA_SHIFT)
#define HARMONY_GAIN_IN 0x0f
#define HARMONY_GAIN_LI_SHIFT 16
#define HARMONY_GAIN_LI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_LI_SHIFT)
#define HARMONY_GAIN_RI_SHIFT 12
#define HARMONY_GAIN_RI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_RI_SHIFT)
#define HARMONY_GAIN_OUT 0x3f
#define HARMONY_GAIN_LO_SHIFT 6
#define HARMONY_GAIN_LO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_LO_SHIFT)
#define HARMONY_GAIN_RO_SHIFT 0
#define HARMONY_GAIN_RO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_RO_SHIFT)
#define HARMONY_MAX_OUT (HARMONY_GAIN_RO_MASK >> HARMONY_GAIN_RO_SHIFT)
#define HARMONY_MAX_IN (HARMONY_GAIN_RI_MASK >> HARMONY_GAIN_RI_SHIFT)
#define HARMONY_MAX_MON (HARMONY_GAIN_MA_MASK >> HARMONY_GAIN_MA_SHIFT)
#define HARMONY_SR_8KHZ 0x08
#define HARMONY_SR_16KHZ 0x09
#define HARMONY_SR_27KHZ 0x0A
#define HARMONY_SR_32KHZ 0x0B
#define HARMONY_SR_48KHZ 0x0E
#define HARMONY_SR_9KHZ 0x0F
#define HARMONY_SR_5KHZ 0x10
#define HARMONY_SR_11KHZ 0x11
#define HARMONY_SR_18KHZ 0x12
#define HARMONY_SR_22KHZ 0x13
#define HARMONY_SR_37KHZ 0x14
#define HARMONY_SR_44KHZ 0x15
#define HARMONY_SR_33KHZ 0x16
#define HARMONY_SR_6KHZ 0x17
#endif /* __HARMONY_H__ */