cregit-Linux how code gets into the kernel

Release 4.14 sound/pci/bt87x.c

Directory: sound/pci
/*
 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 *
 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
 *
 *
 *  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 <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/control.h>
#include <sound/initval.h>

MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
		"{Brooktree,Bt879}}");


static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; 
/* Exclude the first card */

static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	
/* ID for this card */

static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	
/* Enable this card */

static int digital_rate[SNDRV_CARDS];	
/* digital input rate */

static bool load_all;	
/* allow to load the non-whitelisted cards */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
module_param_array(digital_rate, int, NULL, 0444);
MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
module_param(load_all, bool, 0444);
MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");


/* 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 ANALOG_CLOCK 1792000
#ifdef CONFIG_SND_BT87X_OVERCLOCK

#define CLOCK_DIV_MIN 1
#else

#define CLOCK_DIV_MIN 4
#endif

#define CLOCK_DIV_MAX 15


#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)

/* Cards with configuration information */

enum snd_bt87x_boardid {
	
SND_BT87X_BOARD_UNKNOWN,
	
SND_BT87X_BOARD_GENERIC,	/* both an & dig interfaces, 32kHz */
	
SND_BT87X_BOARD_ANALOG,		/* board with no external A/D */
	
SND_BT87X_BOARD_OSPREY2x0,
	
SND_BT87X_BOARD_OSPREY440,
	
SND_BT87X_BOARD_AVPHONE98,
};

/* Card configuration */

struct snd_bt87x_board {
	
int dig_rate;		/* Digital input sampling rate */
	
u32 digital_fmt;	/* Register settings for digital input */
	
unsigned no_analog:1;	/* No analog input */
	
unsigned no_digital:1;	/* No digital input */
};


static struct snd_bt87x_board snd_bt87x_boards[] = {
	[SND_BT87X_BOARD_UNKNOWN] = {
		.dig_rate = 32000, /* just a guess */
	},
	[SND_BT87X_BOARD_GENERIC] = {
		.dig_rate = 32000,
        },
	[SND_BT87X_BOARD_ANALOG] = {
		.no_digital = 1,
        },
	[SND_BT87X_BOARD_OSPREY2x0] = {
		.dig_rate = 44100,
		.digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
        },
	[SND_BT87X_BOARD_OSPREY440] = {
		.dig_rate = 32000,
		.digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
		.no_analog = 1,
        },
	[SND_BT87X_BOARD_AVPHONE98] = {
		.dig_rate = 48000,
        },
};


struct snd_bt87x {
	
struct snd_card *card;
	
struct pci_dev *pci;
	
struct snd_bt87x_board board;

	
void __iomem *mmio;
	
int irq;

	
spinlock_t reg_lock;
	
unsigned long opened;
	
struct snd_pcm_substream *substream;

	
struct snd_dma_buffer dma_risc;
	
unsigned int line_bytes;
	
unsigned int lines;

	
u32 reg_control;
	
u32 interrupt_mask;

	
int current_line;

	
int pci_parity_errors;
};



enum { DEVICE_DIGITAL, DEVICE_ANALOG };


static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) { return readl(chip->mmio + reg); }

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static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) { writel(value, chip->mmio + reg); }

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static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, unsigned int periods, unsigned int period_bytes) { unsigned int i, offset; u32 *risc; if (chip->dma_risc.area == NULL) { if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0) return -ENOMEM; } risc = (u32 *)chip->dma_risc.area; 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; unsigned int addr; 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); addr = snd_pcm_sgbuf_get_addr(substream, offset); *risc++ = cpu_to_le32(addr); 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->dma_risc.addr); chip->line_bytes = period_bytes; chip->lines = periods; return 0; }

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static void snd_bt87x_free_risc(struct snd_bt87x *chip) { if (chip->dma_risc.area) { snd_dma_free_pages(&chip->dma_risc); chip->dma_risc.area = NULL; } }

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static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) { u16 pci_status; pci_read_config_word(chip->pci, PCI_STATUS, &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; pci_write_config_word(chip->pci, PCI_STATUS, pci_status); if (pci_status != PCI_STATUS_DETECTED_PARITY) dev_err(chip->card->dev, "Aieee - PCI error! status %#08x, PCI status %#04x\n", status & ERROR_INTERRUPTS, pci_status); else { dev_err(chip->card->dev, "Aieee - PCI parity error detected!\n"); /* error 'handling' similar to aic7xxx_pci.c: */ chip->pci_parity_errors++; if (chip->pci_parity_errors > 20) { dev_err(chip->card->dev, "Too many PCI parity errors observed.\n"); dev_err(chip->card->dev, "Some device on this bus is generating bad parity.\n"); dev_err(chip->card->dev, "This is an error *observed by*, not *generated by*, this card.\n"); dev_err(chip->card->dev, "PCI parity error checking has been disabled.\n"); chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); } } }

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static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) { struct snd_bt87x *chip = dev_id; unsigned int status, irq_status; status = snd_bt87x_readl(chip, REG_INT_STAT); irq_status = status & chip->interrupt_mask; if (!irq_status) return IRQ_NONE; snd_bt87x_writel(chip, REG_INT_STAT, irq_status); if (irq_status & ERROR_INTERRUPTS) { if (irq_status & (INT_FBUS | INT_FTRGT)) dev_warn(chip->card->dev, "FIFO overrun, status %#08x\n", status); if (irq_status & INT_OCERR) dev_err(chip->card->dev, "internal RISC error, status %#08x\n", status); if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) snd_bt87x_pci_error(chip, irq_status); } if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { 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; }

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static const struct snd_pcm_hardware snd_bt87x_digital_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH, .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 const struct snd_pcm_hardware snd_bt87x_analog_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, .rates = SNDRV_PCM_RATE_KNOT, .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, .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(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) { chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; runtime->hw = snd_bt87x_digital_hw; runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); runtime->hw.rate_min = chip->board.dig_rate; runtime->hw.rate_max = chip->board.dig_rate; return 0; }

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static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) { static const struct snd_ratnum analog_clock = { .num = ANALOG_CLOCK, .den_min = CLOCK_DIV_MIN, .den_max = CLOCK_DIV_MAX, .den_step = 1 }; static const struct snd_pcm_hw_constraint_ratnums constraint_rates = { .nrats = 1, .rats = &analog_clock }; chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); runtime->hw = snd_bt87x_analog_hw; return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraint_rates); }

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static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) { struct snd_bt87x *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *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_atomic(); return err; }

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static int snd_bt87x_close(struct snd_pcm_substream *substream) { struct snd_bt87x *chip = snd_pcm_substream_chip(substream); spin_lock_irq(&chip->reg_lock); chip->reg_control |= CTL_A_PWRDN; snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); spin_unlock_irq(&chip->reg_lock); chip->substream = NULL; clear_bit(0, &chip->opened); smp_mb__after_atomic(); return 0; }

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static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { struct snd_bt87x *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)); }

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static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) { struct snd_bt87x *chip = snd_pcm_substream_chip(substream); snd_bt87x_free_risc(chip); snd_pcm_lib_free_pages(substream); return 0; }

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static int snd_bt87x_prepare(struct snd_pcm_substream *substream) { struct snd_bt87x *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int decimation; spin_lock_irq(&chip->reg_lock); chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); decimation = (ANALOG_CLOCK + runtime->rate / 4) / 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_irq(&chip->reg_lock); return 0; }

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static int snd_bt87x_start(struct snd_bt87x *chip) { spin_lock(&chip->reg_lock); 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->dma_risc.addr); snd_bt87x_writel(chip, REG_PACKET_LEN, chip->line_bytes | (chip->lines << 16)); snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); spin_unlock(&chip->reg_lock); return 0; }

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static int snd_bt87x_stop(struct snd_bt87x *chip) { spin_lock(&chip->reg_lock); 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(&chip->reg_lock); return 0; }

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static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_bt87x *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; } }

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static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) { struct snd_bt87x *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); }

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static const struct snd_pcm_ops 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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info) { info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; info->count = 1; info->value.integer.min = 0; info->value.integer.max = 15; return 0; }

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Jaroslav Kysela4792.16%150.00%
Takashi Iwai47.84%150.00%
Total51100.00%2100.00%


static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; return 0; }

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Jaroslav Kysela4488.00%150.00%
Takashi Iwai612.00%150.00%
Total50100.00%2100.00%


static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; spin_lock_irq(&chip->reg_lock); 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_irq(&chip->reg_lock); return changed; }

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Jaroslav Kysela9894.23%266.67%
Takashi Iwai65.77%133.33%
Total104100.00%3100.00%

static const struct snd_kcontrol_new 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, }; #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); return 0; }

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Jaroslav Kysela4488.00%150.00%
Takashi Iwai612.00%150.00%
Total50100.00%2100.00%


static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; spin_lock_irq(&chip->reg_lock); 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_irq(&chip->reg_lock); return changed; }

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Jaroslav Kysela10094.34%266.67%
Takashi Iwai65.66%133.33%
Total106100.00%3100.00%

static const struct snd_kcontrol_new 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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info) { static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"}; return snd_ctl_enum_info(info, 1, 3, texts); }

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Jaroslav Kysela3576.09%133.33%
Clemens Ladisch715.22%133.33%
Takashi Iwai48.70%133.33%
Total46100.00%3100.00%


static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; return 0; }

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Jaroslav Kysela4488.00%150.00%
Takashi Iwai612.00%150.00%
Total50100.00%2100.00%


static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; spin_lock_irq(&chip->reg_lock); 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_irq(&chip->reg_lock); return changed; }

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Jaroslav Kysela9894.23%266.67%
Takashi Iwai65.77%133.33%
Total104100.00%3100.00%

static const struct snd_kcontrol_new 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(struct snd_bt87x *chip) { if (chip->mmio) snd_bt87x_stop(chip); if (chip->irq >= 0) free_irq(chip->irq, chip); iounmap(chip->mmio); pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); return 0; }

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Jaroslav Kysela6291.18%466.67%
Clemens Ladisch45.88%116.67%
Takashi Iwai22.94%116.67%
Total68100.00%6100.00%


static int snd_bt87x_dev_free(struct snd_device *device) { struct snd_bt87x *chip = device->device_data; return snd_bt87x_free(chip); }

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Jaroslav Kysela2284.62%266.67%
Takashi Iwai415.38%133.33%
Total26100.00%3100.00%


static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) { int err; struct snd_pcm *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_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(chip->pci), 128 * 1024, ALIGN(255 * 4092, 1024)); }

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Jaroslav Kysela9991.67%360.00%
Clemens Ladisch54.63%120.00%
Takashi Iwai43.70%120.00%
Total108100.00%5100.00%


static int snd_bt87x_create(struct snd_card *card, struct pci_dev *pci, struct snd_bt87x **rchip) { struct snd_bt87x *chip; int err; static struct snd_device_ops ops = { .dev_free = snd_bt87x_dev_free }; *rchip = NULL; err = pci_enable_device(pci); if (err < 0) return err; chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (!chip) { pci_disable_device(pci); return -ENOMEM; } chip->card = card; chip->pci = pci; chip->irq = -1; spin_lock_init(&chip->reg_lock); if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { kfree(chip); pci_disable_device(pci); return err; } chip->mmio = pci_ioremap_bar(pci, 0); if (!chip->mmio) { dev_err(card->dev, "cannot remap io memory\n"); err = -ENOMEM; goto fail; } chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); chip->interrupt_mask = MY_INTERRUPTS; 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); err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip); if (err < 0) { dev_err(card->dev, "cannot grab irq %d\n", pci->irq); goto fail; } 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) goto fail; *rchip = chip; return 0; fail: snd_bt87x_free(chip); return err; }

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Jaroslav Kysela28082.60%538.46%
Trent Piepho3710.91%215.38%
Takashi Iwai205.90%430.77%
Thomas Gleixner10.29%17.69%
Arjan van de Ven10.29%17.69%
Total339100.00%13100.00%

#define BT_DEVICE(chip, subvend, subdev, id) \ { .vendor = PCI_VENDOR_ID_BROOKTREE, \ .device = chip, \ .subvendor = subvend, .subdevice = subdev, \ .driver_data = SND_BT87X_BOARD_ ## id } /* driver_data is the card id for that device */ static const struct pci_device_id snd_bt87x_ids[] = { /* Hauppauge WinTV series */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), /* Hauppauge WinTV series */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), /* Viewcast Osprey 200 */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), /* Viewcast Osprey 440 (rate is configurable via gpio) */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), /* ATI TV-Wonder */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), /* Leadtek Winfast tv 2000xp delux */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), /* Pinnacle PCTV */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), /* Voodoo TV 200 */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), /* Askey Computer Corp. MagicTView'99 */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), /* AVerMedia Studio No. 103, 203, ...? */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), /* Prolink PixelView PV-M4900 */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), /* Pinnacle Studio PCTV rave */ BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), { } }; MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); /* cards known not to have audio * (DVB cards use the audio function to transfer MPEG data) */ static struct { unsigned short subvendor, subdevice; } blacklist[] = { {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ }; static struct pci_driver driver; /* return the id of the card, or a negative value if it's blacklisted */
static int snd_bt87x_detect_card(struct pci_dev *pci) { int i; const struct pci_device_id *supported; supported = pci_match_id(snd_bt87x_ids, pci); if (supported && supported->driver_data > 0) return supported->driver_data; for (i = 0; i < ARRAY_SIZE(blacklist); ++i) if (blacklist[i].subvendor == pci->subsystem_vendor && blacklist[i].subdevice == pci->subsystem_device) { dev_dbg(&pci->dev, "card %#04x-%#04x:%#04x has no audio\n", pci->device, pci->subsystem_vendor, pci->subsystem_device); return -EBUSY; } dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n", pci->device, pci->subsystem_vendor, pci->subsystem_device); dev_info(&pci->dev, "please mail id, board name, and, " "if it works, the correct digital_rate option to " "<alsa-devel@alsa-project.org>\n"); return SND_BT87X_BOARD_UNKNOWN; }

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Jaroslav Kysela12684.56%337.50%
Takashi Iwai1812.08%112.50%
Trent Piepho32.01%225.00%
René Herman10.67%112.50%
Clemens Ladisch10.67%112.50%
Total149100.00%8100.00%


static int snd_bt87x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; struct snd_bt87x *chip; int err; enum snd_bt87x_boardid boardid; if (!pci_id->driver_data) { err = snd_bt87x_detect_card(pci); if (err < 0) return -ENODEV; boardid = err; } else boardid = pci_id->driver_data; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { ++dev; return -ENOENT; } err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 0, &card); if (err < 0) return err; err = snd_bt87x_create(card, pci, &chip); if (err < 0) goto _error; memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); if (!chip->board.no_digital) { if (digital_rate[dev] > 0) chip->board.dig_rate = digital_rate[dev]; chip->reg_control |= chip->board.digital_fmt; err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); if (err < 0) goto _error; } if (!chip->board.no_analog) { 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; } dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " "(rate %d Hz)\n", dev, boardid, chip->board.no_analog ? "no " : "", chip->board.no_digital ? "no " : "", chip->board.dig_rate); strcpy(card->driver, "Bt87x"); sprintf(card->shortname, "Brooktree Bt%x", pci->device); sprintf(card->longname, "%s at %#llx, irq %i", card->shortname, (unsigned long long)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, card); ++dev; return 0; _error: snd_card_free(card); return err; }

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Jaroslav Kysela34170.60%333.33%
Trent Piepho11323.40%111.11%
Takashi Iwai234.76%444.44%
Greg Kroah-Hartman61.24%111.11%
Total483100.00%9100.00%


static void snd_bt87x_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); }

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Jaroslav Kysela19100.00%2100.00%
Total19100.00%2100.00%

/* default entries for all Bt87x cards - it's not exported */ /* driver_data is set to 0 to call detection */ static const struct pci_device_id snd_bt87x_default_ids[] = { BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), { } }; static struct pci_driver driver = { .name = KBUILD_MODNAME, .id_table = snd_bt87x_ids, .probe = snd_bt87x_probe, .remove = snd_bt87x_remove, };
static int __init alsa_card_bt87x_init(void) { if (load_all) driver.id_table = snd_bt87x_default_ids; return pci_register_driver(&driver); }

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Takashi Iwai2596.15%150.00%
Jaroslav Kysela13.85%150.00%
Total26100.00%2100.00%


static void __exit alsa_card_bt87x_exit(void) { pci_unregister_driver(&driver); }

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Takashi Iwai1386.67%150.00%
Jaroslav Kysela213.33%150.00%
Total15100.00%2100.00%

module_init(alsa_card_bt87x_init) module_exit(alsa_card_bt87x_exit)

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Jaroslav Kysela399681.94%2029.85%
Takashi Iwai3877.94%1725.37%
Trent Piepho3577.32%45.97%
Clemens Ladisch741.52%710.45%
Benoit Taine120.25%11.49%
Martin Drab80.16%11.49%
Michael Ira Krufky70.14%11.49%
Grant Coady70.14%22.99%
Rusty Russell60.12%22.99%
Greg Kroah-Hartman60.12%11.49%
Bhumika Goyal50.10%22.99%
Bill Pemberton30.06%11.49%
Peter Zijlstra20.04%11.49%
Paul Gortmaker10.02%11.49%
Adrian Bunk10.02%11.49%
Arjan van de Ven10.02%11.49%
Thomas Gleixner10.02%11.49%
Julia Lawall10.02%11.49%
René Herman10.02%11.49%
Al Viro10.02%11.49%
Alexey Dobriyan0.00%00.00%
Total4877100.00%67100.00%
Directory: sound/pci
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