Finally, the long-awaited driver for Bt87x-based TV cards.
Please apply, and put bt87x.c into alsa-driver/pci/.
BTW: I'm not sure if arecord should be changed to accept a sample rate
of 448000 Hz ...
Regards,
Clemens
--
Index: alsa-driver/INSTALL
===================================================================
RCS file: /cvsroot/alsa/alsa-driver/INSTALL,v
retrieving revision 1.151
diff -u -r1.151 INSTALL
--- alsa-driver/INSTALL 25 Nov 2003 11:26:16 -0000 1.151
+++ alsa-driver/INSTALL 4 Dec 2003 10:14:05 -0000
@@ -166,6 +166,15 @@
Additional Modules
==================
+ Module snd-bt87x
+ ----------------
+
+ Module for the audio part of Bt878/Bt879 TV cards.
+
+ digital_rate - Sample rate of digital data from TV tuner chip
+
+ This module supports up to 8 cards and autoprobe.
+
Module snd-mixart
-----------------
Index: alsa-driver/acore/Makefile
===================================================================
RCS file: /cvsroot/alsa/alsa-driver/acore/Makefile,v
retrieving revision 1.33
diff -u -r1.33 Makefile
--- alsa-driver/acore/Makefile 25 Nov 2003 11:21:49 -0000 1.33
+++ alsa-driver/acore/Makefile 4 Dec 2003 10:14:05 -0000
@@ -15,6 +15,7 @@
obj-$(CONFIG_SND_AU8810) += snd-pcm.o snd-timer.o snd-page-alloc.o snd.o
snd-rawmidi.o snd-hwdep.o
obj-$(CONFIG_SND_AU8820) += snd-pcm.o snd-timer.o snd-page-alloc.o snd.o
snd-rawmidi.o snd-hwdep.o
obj-$(CONFIG_SND_AU8830) += snd-pcm.o snd-timer.o snd-page-alloc.o snd.o
snd-rawmidi.o snd-hwdep.o
+obj-$(CONFIG_SND_BT87X) += snd-pcm.o snd-timer.o snd-page-alloc.o snd.o
export-objs := sound.o pcm.o pcm_lib.o rawmidi.o timer.o hwdep.o memalloc.o
include $(SND_TOPDIR)/alsa-kernel/core/Makefile
Index: alsa-driver/include/amagic.h
===================================================================
RCS file: /cvsroot/alsa/alsa-driver/include/amagic.h,v
retrieving revision 1.11
diff -u -r1.11 amagic.h
--- alsa-driver/include/amagic.h 25 Nov 2003 11:21:49 -0000 1.11
+++ alsa-driver/include/amagic.h 4 Dec 2003 10:14:05 -0000
@@ -8,5 +8,6 @@
#define pdacf_t_magic 0xa25a3f00
#define snd_usX2Y_stream_t_magic 0xa25a5e03
#define vortex_t_magic 0xa25a4001
+#define bt87x_t_magic 0xa25a4100
#endif
Index: alsa-driver/pci/Makefile
===================================================================
RCS file: /cvsroot/alsa/alsa-driver/pci/Makefile,v
retrieving revision 1.12
diff -u -r1.12 Makefile
--- alsa-driver/pci/Makefile 11 Nov 2003 13:12:24 -0000 1.12
+++ alsa-driver/pci/Makefile 4 Dec 2003 10:14:05 -0000
@@ -13,6 +13,10 @@
obj-$(CONFIG_SND) += pdplus/ mixart/ au88x0/
+snd-bt87x-objs := bt87x.o
+
+obj-$(CONFIG_SND_BT87X) += snd-bt87x.o
+
#
#
#
Index: alsa-driver/utils/Modules.dep
===================================================================
RCS file: /cvsroot/alsa/alsa-driver/utils/Modules.dep,v
retrieving revision 1.27
diff -u -r1.27 Modules.dep
--- alsa-driver/utils/Modules.dep 25 Nov 2003 11:21:49 -0000 1.27
+++ alsa-driver/utils/Modules.dep 4 Dec 2003 10:14:06 -0000
@@ -5,6 +5,9 @@
%dir linux/sound/drivers
|snd-serialmidi snd-seq-midi
+%dir linux/sound/pci
+|snd-bt87x snd-pcm
+
%dir linux/sound/pci/pdplus
|snd-pdplus snd-pcm
/*
* bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
*
* Copyright (c) Clemens Ladisch <[EMAIL PROTECTED]>
*
* based on btaudio.c by Gerd Knorr <[EMAIL PROTECTED]>
*
*
* This driver 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 driver 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 <sound/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <asm/bitops.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/control.h>
#define SNDRV_GET_ID
#include <sound/initval.h>
MODULE_AUTHOR("Clemens Ladisch <[EMAIL PROTECTED]>");
MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{Brooktree,Bt878},"
"{Brooktree,Bt879}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static int digital_rate[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = 0 }; /* digital
input rate */
MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
MODULE_PARM(digital_rate, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
MODULE_PARM_SYNTAX(digital_rate, SNDRV_ENABLED);
#ifndef PCI_VENDOR_ID_BROOKTREE
#define PCI_VENDOR_ID_BROOKTREE 0x109e
#endif
#ifndef PCI_DEVICE_ID_BROOKTREE_878
#define PCI_DEVICE_ID_BROOKTREE_878 0x0878
#endif
#ifndef PCI_DEVICE_ID_BROOKTREE_879
#define PCI_DEVICE_ID_BROOKTREE_879 0x0879
#endif
/* register offsets */
#define REG_INT_STAT 0x100 /* interrupt status */
#define REG_INT_MASK 0x104 /* interrupt mask */
#define REG_GPIO_DMA_CTL 0x10c /* audio control */
#define REG_PACKET_LEN 0x110 /* audio packet lengths */
#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
#define REG_RISC_COUNT 0x120 /* RISC program counter */
/* interrupt bits */
#define INT_OFLOW (1 << 3) /* audio A/D overflow */
#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
#define INT_PPERR (1 << 15) /* PCI parity error */
#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
#define INT_PABORT (1 << 17) /* PCI master or target abort */
#define INT_OCERR (1 << 18) /* invalid opcode */
#define INT_SCERR (1 << 19) /* sync counter overflow */
#define INT_RISC_EN (1 << 27) /* DMA controller running */
#define INT_RISCS_SHIFT 28 /* RISC status bits */
/* audio control bits */
#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4
DWORDs */
#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
#define CTL_DA_APP (1 << 5) /* GPIO input */
#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
#define CTL_DA_SDR_MASK (0xf<< 8)
#define CTL_DA_LMT (1 << 12) /* limit audio data values */
#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
#define CTL_DA_DPM (1 << 15) /* data packet mode */
#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
#define CTL_DA_LRI (1 << 22) /* left/right indication */
#define CTL_DA_SCE (1 << 23) /* sample clock edge */
#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
#define CTL_A_SEL_SHIFT 24
#define CTL_A_SEL_MASK (3 << 24)
#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
#define CTL_A_G2X (1 << 27) /* audio gain boost */
#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
#define CTL_A_GAIN_MASK (0xf<<28)
/* RISC instruction opcodes */
#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current
address */
#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
#define RISC_JUMP (0x7 << 28) /* jump to address */
#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
/* RISC instruction bits */
#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
#define RISC_IRQ ( 1 << 24) /* interrupt */
#define RISC_EOL ( 1 << 26) /* end of line */
#define RISC_SOL ( 1 << 27) /* start of line */
/* SYNC status bits values */
#define RISC_SYNC_FM1 0x6
#define RISC_SYNC_VRO 0xc
#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
INT_RIPERR | INT_PABORT | INT_OCERR)
#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) *
8)
#define chip_t bt87x_t
typedef struct snd_bt87x bt87x_t;
struct snd_bt87x {
snd_card_t *card;
struct pci_dev *pci;
void *mmio;
struct resource *res_mmio;
int irq;
int dig_rate;
spinlock_t reg_lock;
long opened;
snd_pcm_substream_t *substream;
u32 *risc;
dma_addr_t risc_dma;
unsigned int line_bytes;
unsigned int lines;
u32 reg_control;
int current_line;
};
enum { DEVICE_DIGITAL, DEVICE_ANALOG };
static inline u32 snd_bt87x_readl(bt87x_t *chip, u32 reg)
{
return readl(chip->mmio + reg);
}
static inline void snd_bt87x_writel(bt87x_t *chip, u32 reg, u32 value)
{
writel(value, chip->mmio + reg);
}
static int snd_bt87x_create_risc(bt87x_t *chip, snd_pcm_substream_t *substream,
unsigned int periods, unsigned int period_bytes)
{
struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
unsigned int i, offset;
u32 *risc;
if (!chip->risc) {
chip->risc = (u32*)snd_malloc_pci_pages
(chip->pci, PAGE_ALIGN(MAX_RISC_SIZE), &chip->risc_dma);
if (!chip->risc)
return -ENOMEM;
}
risc = chip->risc;
offset = 0;
*risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
*risc++ = cpu_to_le32(0);
for (i = 0; i < periods; ++i) {
u32 rest;
rest = period_bytes;
do {
u32 cmd, len;
len = PAGE_SIZE - (offset % PAGE_SIZE);
if (len > rest)
len = rest;
cmd = RISC_WRITE | len;
if (rest == period_bytes) {
u32 block = i * 16 / periods;
cmd |= RISC_SOL;
cmd |= block << RISC_SET_STATUS_SHIFT;
cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
}
if (len == rest)
cmd |= RISC_EOL | RISC_IRQ;
*risc++ = cpu_to_le32(cmd);
*risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf,
offset));
offset += len;
rest -= len;
} while (rest > 0);
}
*risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
*risc++ = cpu_to_le32(0);
*risc++ = cpu_to_le32(RISC_JUMP);
*risc++ = cpu_to_le32(chip->risc_dma);
chip->line_bytes = period_bytes;
chip->lines = periods;
return 0;
}
static void snd_bt87x_free_risc(bt87x_t *chip)
{
if (chip->risc) {
snd_free_pci_pages(chip->pci, PAGE_ALIGN(MAX_RISC_SIZE),
chip->risc, chip->risc_dma);
chip->risc = NULL;
}
}
static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
bt87x_t *chip = snd_magic_cast(bt87x_t, dev_id, return);
unsigned int status;
status = snd_bt87x_readl(chip, REG_INT_STAT);
if (!(status & MY_INTERRUPTS))
return IRQ_NONE;
snd_bt87x_writel(chip, REG_INT_STAT, status & MY_INTERRUPTS);
if (status & ERROR_INTERRUPTS) {
if (status & (INT_FBUS | INT_FTRGT))
snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n",
status);
if (status & INT_OCERR)
snd_printk(KERN_ERR "internal RISC error, status %#08x\n",
status);
if (status & (INT_PPERR | INT_RIPERR | INT_PABORT)) {
u16 pci_status;
pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
pci_write_config_word(chip->pci, PCI_STATUS, pci_status &
(PCI_STATUS_PARITY |
PCI_STATUS_SIG_TARGET_ABORT |
PCI_STATUS_REC_TARGET_ABORT |
PCI_STATUS_REC_MASTER_ABORT |
PCI_STATUS_SIG_SYSTEM_ERROR |
PCI_STATUS_DETECTED_PARITY));
snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI
status %#04x\n",
status, pci_status);
}
}
if (status & INT_RISCI) {
int current_block, irq_block;
/* assume that exactly one line has been recorded */
chip->current_line = (chip->current_line + 1) % chip->lines;
/* but check if some interrupts have been skipped */
current_block = chip->current_line * 16 / chip->lines;
irq_block = status >> INT_RISCS_SHIFT;
if (current_block != irq_block)
chip->current_line = (irq_block * chip->lines + 15) / 16;
snd_pcm_period_elapsed(chip->substream);
}
return IRQ_HANDLED;
}
static snd_pcm_hardware_t snd_bt87x_digital_hw = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = 0, /* set at runtime */
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 255 * 4092,
.period_bytes_min = 32,
.period_bytes_max = 4092,
.periods_min = 2,
.periods_max = 255,
};
static snd_pcm_hardware_t snd_bt87x_analog_hw = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
.rates = SNDRV_PCM_RATE_KNOT,
.rate_min = 119467,
.rate_max = 448000,
.channels_min = 1,
.channels_max = 1,
.buffer_bytes_max = 255 * 4092,
.period_bytes_min = 32,
.period_bytes_max = 4092,
.periods_min = 2,
.periods_max = 255,
};
static int snd_bt87x_set_digital_hw(bt87x_t *chip, snd_pcm_runtime_t *runtime)
{
static struct {
int rate;
unsigned int bit;
} ratebits[] = {
{8000, SNDRV_PCM_RATE_8000},
{11025, SNDRV_PCM_RATE_11025},
{16000, SNDRV_PCM_RATE_16000},
{22050, SNDRV_PCM_RATE_22050},
{32000, SNDRV_PCM_RATE_32000},
{44100, SNDRV_PCM_RATE_44100},
{48000, SNDRV_PCM_RATE_48000}
};
int i;
chip->reg_control |= CTL_DA_IOM_DA;
runtime->hw = snd_bt87x_digital_hw;
runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
for (i = 0; i < ARRAY_SIZE(ratebits); ++i)
if (chip->dig_rate == ratebits[i].rate) {
runtime->hw.rates = ratebits[i].bit;
break;
}
runtime->hw.rate_min = chip->dig_rate;
runtime->hw.rate_max = chip->dig_rate;
return 0;
}
static int snd_bt87x_set_analog_hw(bt87x_t *chip, snd_pcm_runtime_t *runtime)
{
static unsigned int rates[] = {
119467, 128000, 137846, 149333, 162909, 179200,
199111, 224000, 256000, 298667, 358400, 448000
};
static snd_pcm_hw_constraint_list_t constraint_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
chip->reg_control &= ~CTL_DA_IOM_DA;
runtime->hw = snd_bt87x_analog_hw;
return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraint_rates);
}
static int snd_bt87x_pcm_open(snd_pcm_substream_t *substream)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
int err;
if (test_and_set_bit(0, &chip->opened))
return -EBUSY;
if (substream->pcm->device == DEVICE_DIGITAL)
err = snd_bt87x_set_digital_hw(chip, runtime);
else
err = snd_bt87x_set_analog_hw(chip, runtime);
if (err < 0)
goto _error;
err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
if (err < 0)
goto _error;
chip->substream = substream;
return 0;
_error:
clear_bit(0, &chip->opened);
smp_mb__after_clear_bit();
return err;
}
static int snd_bt87x_close(snd_pcm_substream_t *substream)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
chip->substream = NULL;
clear_bit(0, &chip->opened);
smp_mb__after_clear_bit();
return 0;
}
static int snd_bt87x_hw_params(snd_pcm_substream_t *substream,
snd_pcm_hw_params_t *hw_params)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
int err;
err = snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
if (err < 0)
return err;
return snd_bt87x_create_risc(chip, substream,
params_periods(hw_params),
params_period_bytes(hw_params));
}
static int snd_bt87x_hw_free(snd_pcm_substream_t *substream)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
snd_bt87x_free_risc(chip);
snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_bt87x_prepare(snd_pcm_substream_t *substream)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
unsigned long flags;
int decimation;
spin_lock_irqsave(&chip->reg_lock, flags);
chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
decimation = (1792000 + 5) / runtime->rate;
chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
if (runtime->format == SNDRV_PCM_FORMAT_S8)
chip->reg_control |= CTL_DA_SBR;
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_bt87x_start(bt87x_t *chip)
{
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
chip->current_line = 0;
chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->risc_dma);
snd_bt87x_writel(chip, REG_PACKET_LEN,
chip->line_bytes | (chip->lines << 16));
snd_bt87x_writel(chip, REG_INT_MASK, MY_INTERRUPTS);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_bt87x_stop(bt87x_t *chip)
{
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
snd_bt87x_writel(chip, REG_INT_MASK, 0);
snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_bt87x_trigger(snd_pcm_substream_t *substream, int cmd)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
return snd_bt87x_start(chip);
case SNDRV_PCM_TRIGGER_STOP:
return snd_bt87x_stop(chip);
default:
return -EINVAL;
}
}
static snd_pcm_uframes_t snd_bt87x_pointer(snd_pcm_substream_t *substream)
{
bt87x_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line *
chip->line_bytes);
}
static snd_pcm_ops_t snd_bt87x_pcm_ops = {
.open = snd_bt87x_pcm_open,
.close = snd_bt87x_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_bt87x_hw_params,
.hw_free = snd_bt87x_hw_free,
.prepare = snd_bt87x_prepare,
.trigger = snd_bt87x_trigger,
.pointer = snd_bt87x_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
static int snd_bt87x_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
*info)
{
info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
info->count = 1;
info->value.integer.min = 0;
info->value.integer.max = 15;
return 0;
}
static int snd_bt87x_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >>
CTL_A_GAIN_SHIFT;
return 0;
}
static int snd_bt87x_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
u32 old_control;
int changed;
spin_lock_irqsave(&chip->reg_lock, flags);
old_control = chip->reg_control;
chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
| (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
changed = old_control != chip->reg_control;
spin_unlock_irqrestore(&chip->reg_lock, flags);
return changed;
}
static snd_kcontrol_new_t snd_bt87x_capture_volume = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Volume",
.info = snd_bt87x_capture_volume_info,
.get = snd_bt87x_capture_volume_get,
.put = snd_bt87x_capture_volume_put,
};
static int snd_bt87x_capture_boost_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
*info)
{
info->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
info->count = 1;
info->value.integer.min = 0;
info->value.integer.max = 1;
return 0;
}
static int snd_bt87x_capture_boost_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
return 0;
}
static int snd_bt87x_capture_boost_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
u32 old_control;
int changed;
spin_lock_irqsave(&chip->reg_lock, flags);
old_control = chip->reg_control;
chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
| (value->value.integer.value[0] ? CTL_A_G2X : 0);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
changed = chip->reg_control != old_control;
spin_unlock_irqrestore(&chip->reg_lock, flags);
return changed;
}
static snd_kcontrol_new_t snd_bt87x_capture_boost = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Boost",
.info = snd_bt87x_capture_boost_info,
.get = snd_bt87x_capture_boost_get,
.put = snd_bt87x_capture_boost_put,
};
static int snd_bt87x_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
*info)
{
static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"};
info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
info->count = 1;
info->value.enumerated.items = 3;
if (info->value.enumerated.item > 2)
info->value.enumerated.item = 2;
strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]);
return 0;
}
static int snd_bt87x_capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >>
CTL_A_SEL_SHIFT;
return 0;
}
static int snd_bt87x_capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
*value)
{
bt87x_t *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
u32 old_control;
int changed;
spin_lock_irqsave(&chip->reg_lock, flags);
old_control = chip->reg_control;
chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
| (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
changed = chip->reg_control != old_control;
spin_unlock_irqrestore(&chip->reg_lock, flags);
return changed;
}
static snd_kcontrol_new_t snd_bt87x_capture_source = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Source",
.info = snd_bt87x_capture_source_info,
.get = snd_bt87x_capture_source_get,
.put = snd_bt87x_capture_source_put,
};
static int snd_bt87x_free(bt87x_t *chip)
{
if (chip->mmio) {
snd_bt87x_stop(chip);
if (chip->irq >= 0)
synchronize_irq(chip->irq);
iounmap(chip->mmio);
}
if (chip->res_mmio) {
release_resource(chip->res_mmio);
kfree_nocheck(chip->res_mmio);
}
if (chip->irq >= 0)
free_irq(chip->irq, chip);
snd_magic_kfree(chip);
return 0;
}
static int snd_bt87x_dev_free(snd_device_t *device)
{
bt87x_t *chip = snd_magic_cast(bt87x_t, device->device_data, return -ENXIO);
return snd_bt87x_free(chip);
}
static int __devinit snd_bt87x_pcm(bt87x_t *chip, int device, char *name)
{
int err;
snd_pcm_t *pcm;
err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
if (err < 0)
return err;
pcm->private_data = chip;
strcpy(pcm->name, name);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
return snd_pcm_lib_preallocate_sg_pages_for_all(chip->pci, pcm,
128 * 1024,
(255 * 4092 + 1023) & ~1023);
}
static int __devinit snd_bt87x_create(snd_card_t *card,
struct pci_dev *pci,
bt87x_t **rchip)
{
bt87x_t *chip;
int err;
static snd_device_ops_t ops = {
.dev_free = snd_bt87x_dev_free
};
*rchip = NULL;
err = pci_enable_device(pci);
if (err < 0)
return err;
chip = snd_magic_kcalloc(bt87x_t, 0, GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->card = card;
chip->pci = pci;
chip->irq = -1;
spin_lock_init(&chip->reg_lock);
chip->res_mmio = request_mem_region(pci_resource_start(pci, 0),
pci_resource_len(pci, 0),
"Bt87x audio");
if (!chip->res_mmio) {
snd_bt87x_free(chip);
snd_printk(KERN_ERR "cannot allocate io memory\n");
return -EBUSY;
}
chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
pci_resource_len(pci, 0));
if (!chip->mmio) {
snd_bt87x_free(chip);
snd_printk(KERN_ERR "cannot remap io memory\n");
return -ENOMEM;
}
chip->reg_control = CTL_DA_ES2 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
snd_bt87x_writel(chip, REG_INT_MASK, 0);
snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
if (request_irq(pci->irq, snd_bt87x_interrupt, SA_INTERRUPT | SA_SHIRQ,
"Bt87x audio", chip)) {
snd_bt87x_free(chip);
snd_printk(KERN_ERR "cannot grab irq\n");
return -EBUSY;
}
chip->irq = pci->irq;
pci_set_master(pci);
synchronize_irq(chip->irq);
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err < 0) {
snd_bt87x_free(chip);
return err;
}
*rchip = chip;
return 0;
}
static int __devinit snd_bt87x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
snd_card_t *card;
bt87x_t *chip;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
++dev;
return -ENOENT;
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
if (!card)
return -ENOMEM;
err = snd_bt87x_create(card, pci, &chip);
if (err < 0)
goto _error;
if (digital_rate[dev] > 0)
chip->dig_rate = digital_rate[dev];
else
chip->dig_rate = (int)pci_id->driver_data;
err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
if (err < 0)
goto _error;
err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
if (err < 0)
goto _error;
err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_volume, chip));
if (err < 0)
goto _error;
err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_boost, chip));
if (err < 0)
goto _error;
err = snd_ctl_add(card, snd_ctl_new1(&snd_bt87x_capture_source, chip));
if (err < 0)
goto _error;
strcpy(card->driver, "Bt87x");
sprintf(card->shortname, "Brooktree Bt%x", pci->device);
sprintf(card->longname, "%s at %#lx, irq %i",
card->shortname, pci_resource_start(pci, 0), chip->irq);
strcpy(card->mixername, "Bt87x");
err = snd_card_register(card);
if (err < 0)
goto _error;
pci_set_drvdata(pci, chip);
++dev;
return 0;
_error:
snd_card_free(card);
return err;
}
static void __devexit snd_bt87x_remove(struct pci_dev *pci)
{
bt87x_t *chip = snd_magic_cast(bt87x_t, pci_get_drvdata(pci), return);
if (chip)
snd_card_free(chip->card);
pci_set_drvdata(pci, NULL);
}
#define BT_DEVICE(chip, subvend, subdev, rate) \
{ .vendor = PCI_VENDOR_ID_BROOKTREE, \
.device = PCI_DEVICE_ID_BROOKTREE_##chip, \
.subvendor = subvend, .subdevice = subdev, \
.driver_data = rate }
/* driver_data is the default digital_rate value for that device */
static struct pci_device_id snd_bt87x_ids[] = {
BT_DEVICE(878, 0x0070, 0xff01, 44100), /* Osprey 200 */
/* default entries for 32kHz and generic Bt87x cards */
BT_DEVICE(878, PCI_ANY_ID, PCI_ANY_ID, 32000),
BT_DEVICE(879, PCI_ANY_ID, PCI_ANY_ID, 32000),
{ }
};
MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
static struct pci_driver driver = {
.name = "Bt87x",
.id_table = snd_bt87x_ids,
.probe = snd_bt87x_probe,
.remove = __devexit_p(snd_bt87x_remove),
};
static int __init alsa_card_bt87x_init(void)
{
int err;
err = pci_module_init(&driver);
if (err < 0) {
#ifdef MODULE
printk(KERN_ERR "Bt87x soundcard not found or device busy\n");
#endif
return err;
}
return 0;
}
static void __exit alsa_card_bt87x_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_bt87x_init)
module_exit(alsa_card_bt87x_exit)
#ifndef MODULE
/* format is: snd-bt87x=enable,index,id */
static int __init alsa_card_bt87x_setup(char *str)
{
static unsigned __initdata nr_dev = 0;
if (nr_dev >= SNDRV_CARDS)
return 0;
(void)(get_option(&str,&enable[nr_dev]) == 2 &&
get_option(&str,&index[nr_dev]) == 2 &&
get_id(&str,&id[nr_dev]) == 2);
nr_dev++;
return 1;
}
__setup("snd-bt87x=", alsa_card_bt87x_setup);
#endif /* ifndef MODULE */
EXPORT_NO_SYMBOLS;
