i2s.c File Reference

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/dbdma.h>
#include <machine/intr_machdep.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <machine/pio.h>
#include <sys/rman.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/sound/pcm/sound.h>
#include <dev/sound/macio/aoa.h>
#include <powerpc/powermac/macgpiovar.h>

Include dependency graph for i2s.c:

Go to the source code of this file.

Data Structures
struct	i2s_softc
struct	aoagpio_softc
struct	gpio_match
struct	i2s_clksrc

Macros
#define	GPIO_CTRL_EXTINT_SET
#define	I2S_INT   0x00
#define	I2S_FORMAT   0x10
#define	I2S_FRAMECOUNT   0x40
#define	I2S_FRAMEMATCH   0x50
#define	I2S_WORDSIZE   0x60
#define	I2S_INT_CLKSTOPPEND   0x01000000 /* clock-stop interrupt pending */
#define	CLKSRC_49MHz   0x80000000 /* Use 49152000Hz Osc. */
#define	CLKSRC_45MHz   0x40000000 /* Use 45158400Hz Osc. */
#define	CLKSRC_18MHz   0x00000000 /* Use 18432000Hz Osc. */
#define	MCLK_DIV_MASK   0x1f000000 /* MCLK = SRC / DIV */
#define	SCLK_DIV_MASK   0x00f00000 /* SCLK = MCLK / DIV */
#define	SCLK_MASTER   0x00080000 /* Master mode */
#define	SCLK_SLAVE   0x00000000 /* Slave mode */
#define	SERIAL_FORMAT   0x00070000
#define	SERIAL_SONY   0x00000000
#define	SERIAL_64x   0x00010000
#define	SERIAL_32x   0x00020000
#define	SERIAL_DAV   0x00040000
#define	SERIAL_SILICON   0x00050000
#define	INPUT_STEREO   (2 << 24)
#define	INPUT_MONO   (1 << 24)
#define	INPUT_16BIT   (0 << 16)
#define	INPUT_24BIT   (3 << 16)
#define	OUTPUT_STEREO   (2 << 8)
#define	OUTPUT_MONO   (1 << 8)
#define	OUTPUT_16BIT   (0 << 0)
#define	OUTPUT_24BIT   (3 << 0)
#define	MCLK_FS   256
#define	NCLKS   3
#define	reset_active   0
#define	RESET_SETUP_TIME   5000
#define	RESET_HOLD_TIME   20000
#define	RESET_RELEASE_TIME   10000
#define	AMP_ACTIVE   0 /* XXX OF */
#define	HEADPHONE_ACTIVE   0 /* XXX OF */
#define	LINEOUT_ACTIVE   0 /* XXX OF */
#define	MUTE_CONTROL(xxx, yyy)

Enumerations
enum	gpio_ctrl {   AMP_MUTE , HEADPHONE_MUTE , LINEOUT_MUTE , AUDIO_HW_RESET ,   HEADPHONE_DETECT , LINEOUT_DETECT , GPIO_CTRL_NUM }

Functions
static int	i2s_probe (device_t)
static int	i2s_attach (device_t)
static void	i2s_postattach (void *)
static int	i2s_setup (struct i2s_softc *, u_int, u_int, u_int)
static void	i2s_mute_headphone (struct i2s_softc *, int)
static void	i2s_mute_lineout (struct i2s_softc *, int)
static void	i2s_mute_speaker (struct i2s_softc *, int)
static void	i2s_set_outputs (void *, u_int)
	DRIVER_MODULE (pcm_i2s, macio, pcm_i2s_driver, pcm_devclass, 0, 0)
	MODULE_DEPEND (pcm_i2s, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER)
static int	aoagpio_probe (device_t)
static int	aoagpio_attach (device_t)
	DRIVER_MODULE (aoagpio, macgpio, aoagpio_driver, aoagpio_devclass, 0, 0)
static phandle_t	of_find_firstchild_byname (phandle_t, const char *)
static void	i2s_cint (struct i2s_softc *)
static void	aoagpio_int (void *cookie)
static u_int	gpio_read (enum gpio_ctrl ctrl)
static void	gpio_write (enum gpio_ctrl ctrl, u_int x)
static void	i2s_audio_hw_reset (struct i2s_softc *sc)

Variables
static struct intr_config_hook *	i2s_delayed_attach = NULL
kobj_class_t	i2s_mixer_class = NULL
device_t	i2s_mixer = NULL
static device_method_t	pcm_i2s_methods []
static driver_t	pcm_i2s_driver
static device_method_t	aoagpio_methods []
static driver_t	aoagpio_driver
static devclass_t	aoagpio_devclass
static struct aoagpio_softc *	gpio_ctrls [GPIO_CTRL_NUM]
static struct gpio_match	gpio_controls []
static const struct i2s_clksrc	clksrc [NCLKS]

Macro Definition Documentation

AMP_ACTIVE

#define AMP_ACTIVE   0 /* XXX OF */

Definition at line 673 of file i2s.c.

CLKSRC_18MHz

#define CLKSRC_18MHz   0x00000000 /* Use 18432000Hz Osc. */

Definition at line 404 of file i2s.c.

CLKSRC_45MHz

#define CLKSRC_45MHz   0x40000000 /* Use 45158400Hz Osc. */

Definition at line 403 of file i2s.c.

CLKSRC_49MHz

#define CLKSRC_49MHz   0x80000000 /* Use 49152000Hz Osc. */

Definition at line 402 of file i2s.c.

GPIO_CTRL_EXTINT_SET

#define GPIO_CTRL_EXTINT_SET

Value:

                ((1 << HEADPHONE_DETECT) | \
                 (1 << LINEOUT_DETECT))

Definition at line 274 of file i2s.c.

HEADPHONE_ACTIVE

#define HEADPHONE_ACTIVE   0 /* XXX OF */

Definition at line 674 of file i2s.c.

I2S_FORMAT

#define I2S_FORMAT   0x10

Definition at line 393 of file i2s.c.

I2S_FRAMECOUNT

#define I2S_FRAMECOUNT   0x40

Definition at line 394 of file i2s.c.

I2S_FRAMEMATCH

#define I2S_FRAMEMATCH   0x50

Definition at line 395 of file i2s.c.

I2S_INT

#define I2S_INT   0x00

Definition at line 392 of file i2s.c.

I2S_INT_CLKSTOPPEND

#define I2S_INT_CLKSTOPPEND   0x01000000 /* clock-stop interrupt pending */

Definition at line 399 of file i2s.c.

I2S_WORDSIZE

#define I2S_WORDSIZE   0x60

Definition at line 396 of file i2s.c.

INPUT_16BIT

#define INPUT_16BIT   (0 << 16)

Definition at line 419 of file i2s.c.

INPUT_24BIT

#define INPUT_24BIT   (3 << 16)

Definition at line 420 of file i2s.c.

INPUT_MONO

#define INPUT_MONO   (1 << 24)

Definition at line 418 of file i2s.c.

INPUT_STEREO

#define INPUT_STEREO   (2 << 24)

Definition at line 417 of file i2s.c.

LINEOUT_ACTIVE

#define LINEOUT_ACTIVE   0 /* XXX OF */

Definition at line 675 of file i2s.c.

MCLK_DIV_MASK

#define MCLK_DIV_MASK   0x1f000000 /* MCLK = SRC / DIV */

Definition at line 405 of file i2s.c.

MCLK_FS

#define MCLK_FS   256

Definition at line 428 of file i2s.c.

MUTE_CONTROL

#define MUTE_CONTROL	(		xxx,
			yyy
	)

Value:

static void                                             \
i2s_mute_##xxx(struct i2s_softc *sc, int mute)          \
{                                                       \
        int             x;                              \
                                                        \
        if (gpio_ctrls[yyy##_MUTE] == NULL)             \
                return;                                 \
        if (mute)                                       \
                x = yyy##_ACTIVE;                       \
        else                                            \
                x = ! yyy##_ACTIVE;                     \
                                                        \
        if (x != gpio_read(yyy##_MUTE))                 \
                gpio_write(yyy##_MUTE, x);              \
}

Definition at line 677 of file i2s.c.

NCLKS

#define NCLKS   3

Definition at line 431 of file i2s.c.

OUTPUT_16BIT

#define OUTPUT_16BIT   (0 << 0)

Definition at line 423 of file i2s.c.

OUTPUT_24BIT

#define OUTPUT_24BIT   (3 << 0)

Definition at line 424 of file i2s.c.

OUTPUT_MONO

#define OUTPUT_MONO   (1 << 8)

Definition at line 422 of file i2s.c.

OUTPUT_STEREO

#define OUTPUT_STEREO   (2 << 8)

Definition at line 421 of file i2s.c.

reset_active

#define reset_active   0

Definition at line 646 of file i2s.c.

RESET_HOLD_TIME

#define RESET_HOLD_TIME   20000

Definition at line 650 of file i2s.c.

RESET_RELEASE_TIME

#define RESET_RELEASE_TIME   10000

Definition at line 651 of file i2s.c.

RESET_SETUP_TIME

#define RESET_SETUP_TIME   5000

Definition at line 649 of file i2s.c.

SCLK_DIV_MASK

#define SCLK_DIV_MASK   0x00f00000 /* SCLK = MCLK / DIV */

Definition at line 406 of file i2s.c.

SCLK_MASTER

#define SCLK_MASTER   0x00080000 /* Master mode */

Definition at line 407 of file i2s.c.

SCLK_SLAVE

#define SCLK_SLAVE   0x00000000 /* Slave mode */

Definition at line 408 of file i2s.c.

SERIAL_32x

#define SERIAL_32x   0x00020000

Definition at line 412 of file i2s.c.

SERIAL_64x

#define SERIAL_64x   0x00010000

Definition at line 411 of file i2s.c.

SERIAL_DAV

#define SERIAL_DAV   0x00040000

Definition at line 413 of file i2s.c.

SERIAL_FORMAT

#define SERIAL_FORMAT   0x00070000

Definition at line 409 of file i2s.c.

SERIAL_SILICON

#define SERIAL_SILICON   0x00050000

Definition at line 414 of file i2s.c.

SERIAL_SONY

#define SERIAL_SONY   0x00000000

Definition at line 410 of file i2s.c.

Enumeration Type Documentation

gpio_ctrl

enum gpio_ctrl

Enumerator
AMP_MUTE
HEADPHONE_MUTE
LINEOUT_MUTE
AUDIO_HW_RESET
HEADPHONE_DETECT
LINEOUT_DETECT
GPIO_CTRL_NUM

Definition at line 264 of file i2s.c.

Function Documentation

aoagpio_attach()

static int aoagpio_attach ( device_t  gpio )

static

Definition at line 361 of file i2s.c.

References aoagpio_int(), aoagpio_softc::ctrl, DPRINTF, gpio, GPIO_CTRL_EXTINT_SET, irq, r, and rid.

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aoagpio_int()

static void aoagpio_int ( void *  cookie )

static

Definition at line 299 of file i2s.c.

References aoagpio_softc::detect_active, aoagpio_softc::i2s, i2s_cint(), and aoagpio_softc::level.

Referenced by aoagpio_attach(), and aoagpio_probe().

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aoagpio_probe()

static int aoagpio_probe ( device_t  gpio )

static

Definition at line 316 of file i2s.c.

References aoagpio_int(), aoagpio_softc::ctrl, aoagpio_softc::detect_active, aoagpio_softc::dev, gpio, gpio_controls, GPIO_CTRL_EXTINT_SET, gpio_ctrls, aoagpio_softc::i2s, aoagpio_softc::level, m, and name.

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DRIVER_MODULE() [1/2]

DRIVER_MODULE	(	aoagpio	,
		macgpio	,
		aoagpio_driver	,
		aoagpio_devclass	,
		0	,
		0
	)

DRIVER_MODULE() [2/2]

DRIVER_MODULE	(	pcm_i2s	,
		macio	,
		pcm_i2s_driver	,
		pcm_devclass	,
		0	,
		0
	)

gpio_read()

static u_int gpio_read ( enum gpio_ctrl  ctrl )

static

Definition at line 601 of file i2s.c.

References aoagpio_softc::ctrl, aoagpio_softc::dev, gpio_ctrls, and GPIO_DATA.

gpio_write()

static void gpio_write ( enum gpio_ctrl  ctrl, u_int  x  )

static

Definition at line 612 of file i2s.c.

References aoagpio_softc::ctrl, aoagpio_softc::dev, gpio_ctrls, GPIO_DATA, and reg.

Referenced by i2s_audio_hw_reset().

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i2s_attach()

static int i2s_attach ( device_t  self )

static

Definition at line 188 of file i2s.c.

References i2s_softc::aoa, aoa_attach(), aoa_interrupt(), i2s_delayed_attach, i2s_postattach(), i2s_setup(), i2s_softc::node, of_find_firstchild_byname(), i2s_softc::port_mtx, i2s_softc::reg, rid, aoa_softc::sc_dev, aoa_softc::sc_odma, snd_setup_intr(), and i2s_softc::soundnode.

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i2s_audio_hw_reset()

static void i2s_audio_hw_reset ( struct i2s_softc *  sc )

static

Definition at line 654 of file i2s.c.

References AUDIO_HW_RESET, DPRINTF, gpio_ctrls, gpio_write(), reset_active, RESET_HOLD_TIME, RESET_RELEASE_TIME, and RESET_SETUP_TIME.

Referenced by i2s_postattach().

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i2s_cint()

static void i2s_cint ( struct i2s_softc *  sc )

static

Definition at line 628 of file i2s.c.

References gpio_ctrls, HEADPHONE_DETECT, i2s_set_outputs(), aoagpio_softc::level, LINEOUT_DETECT, and mask.

Referenced by aoagpio_int(), and i2s_postattach().

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i2s_mute_headphone()

static void i2s_mute_headphone ( struct i2s_softc *  , int    )

static

Referenced by i2s_set_outputs().

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i2s_mute_lineout()

static void i2s_mute_lineout ( struct i2s_softc *  , int    )

static

Referenced by i2s_set_outputs().

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i2s_mute_speaker()

static void i2s_mute_speaker ( struct i2s_softc *  , int    )

static

Referenced by i2s_set_outputs().

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i2s_postattach()

static void i2s_postattach ( void *  xsc )

static

Definition at line 734 of file i2s.c.

References i2s_softc::aoa, free, GPIO_CTRL_NUM, gpio_ctrls, aoagpio_softc::i2s, i2s_audio_hw_reset(), i2s_cint(), i2s_delayed_attach, i2s_mixer, i2s_mixer_class, mixer_init(), and aoa_softc::sc_dev.

Referenced by i2s_attach().

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i2s_probe()

static int i2s_probe ( device_t  self )

static

Definition at line 157 of file i2s.c.

References name.

i2s_set_outputs()

static void i2s_set_outputs ( void *  ptr, u_int  mask  )

static

Definition at line 699 of file i2s.c.

References DPRINTF, i2s_mute_headphone(), i2s_mute_lineout(), i2s_mute_speaker(), mask, i2s_softc::output_mask, and i2s_softc::port_mtx.

Referenced by i2s_cint().

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i2s_setup()

static int i2s_setup ( struct i2s_softc *  sc, u_int  rate, u_int  wordsize, u_int  sclk_fs  )

static

Definition at line 448 of file i2s.c.

References clksrc, i2s_clksrc::cs_clock, i2s_clksrc::cs_reg, I2S_FORMAT, I2S_INT, I2S_INT_CLKSTOPPEND, I2S_WORDSIZE, INPUT_16BIT, INPUT_24BIT, INPUT_STEREO, MCLK_DIV_MASK, MCLK_FS, NCLKS, OUTPUT_16BIT, OUTPUT_24BIT, OUTPUT_STEREO, rate, i2s_softc::reg, reg, SCLK_DIV_MASK, SCLK_MASTER, SERIAL_32x, and SERIAL_64x.

Referenced by i2s_attach().

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MODULE_DEPEND()

MODULE_DEPEND	(	pcm_i2s	,
		sound	,
		SOUND_MINVER	,
		SOUND_PREFVER	,
		SOUND_MAXVER
	)

of_find_firstchild_byname()

static phandle_t of_find_firstchild_byname ( phandle_t  node, const char *  req_name  )

static

Definition at line 584 of file i2s.c.

References n, and name.

Referenced by i2s_attach().

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Variable Documentation

aoagpio_devclass

devclass_t aoagpio_devclass

static

Definition at line 149 of file i2s.c.

aoagpio_driver

driver_t aoagpio_driver

static

Initial value:

= {
        "aoagpio",
        aoagpio_methods,
        sizeof(struct aoagpio_softc)
}

Definition at line 144 of file i2s.c.

aoagpio_methods

device_method_t aoagpio_methods[]

static

Initial value:

= {
        
        DEVMETHOD(device_probe,         aoagpio_probe),
        DEVMETHOD(device_attach,        aoagpio_attach),
        { 0, 0 }
}

Definition at line 129 of file i2s.c.

clksrc

const struct i2s_clksrc clksrc[NCLKS]

static

Initial value:

= {
        {49152000, CLKSRC_49MHz},
        {45158400, CLKSRC_45MHz},
        {18432000, CLKSRC_18MHz}
}

Referenced by i2s_setup().

gpio_controls

struct gpio_match gpio_controls[]

static

Initial value:

= {
        {"headphone-mute",      HEADPHONE_MUTE},
        {"lineout-mute",        LINEOUT_MUTE},
        {"amp-mute",            AMP_MUTE},
        {"headphone-detect",    HEADPHONE_DETECT},
        {"lineout-detect",      LINEOUT_DETECT},
        {"line-output-detect",  LINEOUT_DETECT},
        {"audio-hw-reset",      AUDIO_HW_RESET},
        {"hw-reset",            AUDIO_HW_RESET},
        {NULL,                  GPIO_CTRL_NUM}
}

Referenced by aoagpio_probe().

gpio_ctrls

struct aoagpio_softc* gpio_ctrls[GPIO_CTRL_NUM]

static

Initial value:

= 
        {NULL, NULL, NULL, NULL, NULL, NULL}

Definition at line 278 of file i2s.c.

Referenced by aoagpio_probe(), gpio_read(), gpio_write(), i2s_audio_hw_reset(), i2s_cint(), and i2s_postattach().

i2s_delayed_attach

struct intr_config_hook* i2s_delayed_attach = NULL

static

Definition at line 105 of file i2s.c.

Referenced by i2s_attach(), and i2s_postattach().

i2s_mixer

device_t i2s_mixer = NULL

Definition at line 108 of file i2s.c.

Referenced by i2s_postattach(), onyx_attach(), snapper_attach(), and tumbler_attach().

i2s_mixer_class

kobj_class_t i2s_mixer_class = NULL

Definition at line 107 of file i2s.c.

Referenced by i2s_postattach(), onyx_attach(), snapper_attach(), and tumbler_attach().

pcm_i2s_driver

driver_t pcm_i2s_driver

static

Initial value:

= {
        "pcm",
        pcm_i2s_methods,
        PCM_SOFTC_SIZE
}

Definition at line 117 of file i2s.c.

pcm_i2s_methods

device_method_t pcm_i2s_methods[]

static

Initial value:

= {
        
        DEVMETHOD(device_probe,         i2s_probe),
        DEVMETHOD(device_attach,        i2s_attach),
        { 0, 0 }
}

Definition at line 110 of file i2s.c.