[PATCH] at73c213: add support for at73c240 devices
From: Andreas BieÃmann
Date: Fri Feb 11 2011 - 10:56:49 EST
at73c240 is a successor of mature at73c213 and nearly register compatible.
See http://www.atmel.com/dyn/resources/prod_documents/doc6484.pdf for
comparison of these two devices.
Signed-off-by: Andreas BieÃmann <biessmann@xxxxxxxxxxxxx>
---
include/linux/spi/at73c213.h | 1 +
sound/spi/at73c213.c | 122 +++++++++++++++++++++++++++++++++---------
sound/spi/at73c213.h | 3 +
3 files changed, 101 insertions(+), 25 deletions(-)
diff --git a/include/linux/spi/at73c213.h b/include/linux/spi/at73c213.h
index 0f20a70e..26d1f38 100644
--- a/include/linux/spi/at73c213.h
+++ b/include/linux/spi/at73c213.h
@@ -19,6 +19,7 @@
struct at73c213_board_info {
int ssc_id;
struct clk *dac_clk;
+ bool is_at73c240;
char shortname[32];
};
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index 503ffb0..711aae4 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -709,10 +709,44 @@ AT73C213_MONO_SWITCH("Aux Capture Switch", 0, DAC_CTRL, DAC_CTRL_ONAUXIN,
AT73C213_MONO_SWITCH("Line Capture Switch", 0, DAC_CTRL, 0, 0x03, 0),
};
+static struct snd_kcontrol_new snd_at73c240_controls[] __devinitdata = {
+AT73C213_STEREO("Master Playback Volume", 0, DAC_LMPG, DAC_RMPG, 0, 0, 0x1f, 1),
+AT73C213_STEREO("Master Playback Switch", 0, DAC_LMPG, DAC_RMPG, 5, 5, 1, 1),
+AT73C213_STEREO("PCM Playback Volume", 0, DAC_LLOG, DAC_RLOG, 0, 0, 0x1f, 1),
+AT73C213_STEREO("PCM Playback Switch", 0, DAC_LLOG, DAC_RLOG, 5, 5, 1, 1),
+AT73C213_MONO_SWITCH("Mono PA Playback Switch", 0, DAC_CTRL,
+ (DAC_CTRL_ONPADRV-1), 0x01, 0),
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "PA Playback Volume",
+ .index = 0,
+ .info = snd_at73c213_pa_volume_info,
+ .get = snd_at73c213_mono_get,
+ .put = snd_at73c213_mono_put,
+ .private_value = PA_CTRL | (PA_CTRL_APAGAIN << 8) | \
+ (0x0f << 16) | (1 << 24),
+},
+AT73C213_MONO_SWITCH("PA Playback Switch", 0, PA_CTRL, (PA_CTRL_APAON-1),
+ 0x01, 0),
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Line Capture Volume",
+ .index = 0,
+ .info = snd_at73c213_line_capture_volume_info,
+ .get = snd_at73c213_stereo_get,
+ .put = snd_at73c213_stereo_put,
+ .private_value = DAC_LLIG | (DAC_RLIG << 8) | (0 << 16) | (0 << 19)
+ | (0x1f << 24) | (1 << 22),
+},
+AT73C213_MONO_SWITCH("Line Capture Switch", 0, DAC_CTRL, 0, 0x03, 0),
+};
+
static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip)
{
struct snd_card *card;
int errval, idx;
+ struct snd_kcontrol_new *controls;
+ int controls_size = 0;
if (chip == NULL || chip->pcm == NULL)
return -EINVAL;
@@ -721,9 +755,17 @@ static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip)
strcpy(card->mixername, chip->pcm->name);
- for (idx = 0; idx < ARRAY_SIZE(snd_at73c213_controls); idx++) {
+ if (chip->board->is_at73c240) {
+ controls_size = ARRAY_SIZE(snd_at73c240_controls);
+ controls = snd_at73c240_controls;
+ } else {
+ controls_size = ARRAY_SIZE(snd_at73c213_controls);
+ controls = snd_at73c213_controls;
+ }
+
+ for (idx = 0; idx < controls_size; idx++) {
errval = snd_ctl_add(card,
- snd_ctl_new1(&snd_at73c213_controls[idx],
+ snd_ctl_new1(&controls[idx],
chip));
if (errval < 0)
goto cleanup;
@@ -732,7 +774,7 @@ static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip)
return 0;
cleanup:
- for (idx = 1; idx < ARRAY_SIZE(snd_at73c213_controls) + 1; idx++) {
+ for (idx = 1; idx < controls_size + 1; idx++) {
struct snd_kcontrol *kctl;
kctl = snd_ctl_find_numid(card, idx);
if (kctl)
@@ -777,7 +819,7 @@ static int __devinit snd_at73c213_ssc_init(struct snd_at73c213 *chip)
static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
{
int retval;
- unsigned char dac_ctrl = 0;
+ unsigned char tmp_reg;
retval = snd_at73c213_set_bitrate(chip);
if (retval)
@@ -799,7 +841,11 @@ static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
retval = snd_at73c213_write_reg(chip, DAC_PRECH, 0xff);
if (retval)
goto out_clk;
- retval = snd_at73c213_write_reg(chip, PA_CTRL, (1<<PA_CTRL_APAPRECH));
+ if (chip->board->is_at73c240)
+ tmp_reg = (1<<(PA_CTRL_APAPRECH-1));
+ else
+ tmp_reg = (1<<PA_CTRL_APAPRECH);
+ retval = snd_at73c213_write_reg(chip, PA_CTRL, tmp_reg);
if (retval)
goto out_clk;
retval = snd_at73c213_write_reg(chip, DAC_CTRL,
@@ -809,11 +855,13 @@ static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
msleep(50);
- /* Stop precharging PA. */
- retval = snd_at73c213_write_reg(chip, PA_CTRL,
- (1<<PA_CTRL_APALP) | 0x0f);
- if (retval)
- goto out_clk;
+ if (!chip->board->is_at73c240) {
+ /* Stop precharging PA. */
+ retval = snd_at73c213_write_reg(chip, PA_CTRL,
+ (1<<PA_CTRL_APALP) | 0x0f);
+ if (retval)
+ goto out_clk;
+ }
msleep(450);
@@ -825,12 +873,18 @@ static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
msleep(1);
/* Turn on DAC. */
- dac_ctrl = (1<<DAC_CTRL_ONDACL) | (1<<DAC_CTRL_ONDACR)
- | (1<<DAC_CTRL_ONLNOL) | (1<<DAC_CTRL_ONLNOR)
- /* enable MONO PA */
- | (1<<DAC_CTRL_ONPADRV);
+ if (chip->board->is_at73c240)
+ tmp_reg = (1<<DAC_CTRL_ONDACL) | (1<<DAC_CTRL_ONDACR)
+ | (1<<DAC_CTRL_ONLNOL) | (1<<DAC_CTRL_ONLNOR)
+ /* enable MONO PA */
+ | (1<<(DAC_CTRL_ONPADRV-1));
+ else
+ tmp_reg = (1<<DAC_CTRL_ONDACL) | (1<<DAC_CTRL_ONDACR)
+ | (1<<DAC_CTRL_ONLNOL) | (1<<DAC_CTRL_ONLNOR)
+ /* enable MONO PA */
+ | (1<<DAC_CTRL_ONPADRV);
- retval = snd_at73c213_write_reg(chip, DAC_CTRL, dac_ctrl);
+ retval = snd_at73c213_write_reg(chip, DAC_CTRL, tmp_reg);
if (retval)
goto out_clk;
@@ -859,9 +913,19 @@ static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
retval = snd_at73c213_write_reg(chip, DAC_RLIG, 0x11);
if (retval)
goto out_clk;
- retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11);
- if (retval)
- goto out_clk;
+ if (!chip->board->is_at73c240) {
+ retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11);
+ if (retval)
+ goto out_clk;
+ }
+
+ /* enable I2S clock */
+ if (chip->board->is_at73c240) {
+ retval = snd_at73c213_write_reg(chip, DAC_IS_CTRL,
+ (1<<DAC_IS_CTRL_IS_CTRL));
+ if (retval)
+ goto out_clk;
+ }
/* Enable I2S device, i.e. clock output. */
ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXEN));
@@ -915,6 +979,10 @@ static int __devinit snd_at73c213_dev_init(struct snd_card *card,
memcpy(&chip->reg_image, &snd_at73c213_original_image,
sizeof(snd_at73c213_original_image));
+ /* at73c240 has another reset value here */
+ if (chip->board->is_at73c240)
+ chip->reg_image[PA_CTRL] = 0x0f;
+
retval = snd_at73c213_ssc_init(chip);
if (retval)
goto out_irq;
@@ -1043,9 +1111,11 @@ static int __devexit snd_at73c213_remove(struct spi_device *spi)
retval = snd_at73c213_write_reg(chip, DAC_RLIG, 0x11);
if (retval)
goto out;
- retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11);
- if (retval)
- goto out;
+ if (!chip->board->is_at73c240) {
+ retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11);
+ if (retval)
+ goto out;
+ }
/* Turn off PA. */
retval = snd_at73c213_write_reg(chip, PA_CTRL,
@@ -1053,10 +1123,12 @@ static int __devexit snd_at73c213_remove(struct spi_device *spi)
if (retval)
goto out;
msleep(10);
- retval = snd_at73c213_write_reg(chip, PA_CTRL,
- (1 << PA_CTRL_APALP) | 0x0f);
- if (retval)
- goto out;
+ if (!chip->board->is_at73c240) {
+ retval = snd_at73c213_write_reg(chip, PA_CTRL,
+ (1 << PA_CTRL_APALP) | 0x0f);
+ if (retval)
+ goto out;
+ }
/* Turn off external DAC. */
retval = snd_at73c213_write_reg(chip, DAC_CTRL, 0x0c);
diff --git a/sound/spi/at73c213.h b/sound/spi/at73c213.h
index fd8b372..3712d6e 100644
--- a/sound/spi/at73c213.h
+++ b/sound/spi/at73c213.h
@@ -88,6 +88,9 @@
#define DAC_MISC_DEEMPEN 2
#define DAC_MISC_NBITS 0
+#define DAC_IS_CTRL 0x0B
+#define DAC_IS_CTRL_IS_CTRL 2
+
/* DAC Precharge Control Register */
#define DAC_PRECH 0x0C
#define DAC_PRECH_PRCHGPDRV 7
--
1.7.2.3
--
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