[PATCH 11/16] ASoC: wm_adsp: Add support for ADSP2V2

Richard Fitzgerald
2017-04-05T10:07:59Z

Adds support for ADSP2V2 cores. Primary differences are that
they use a 32-bit register map compared to the 16-bit register
map of ADSP2V1, and there are some changes to clocking control.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
sound/soc/codecs/wm_adsp.c | 187 ++++++++++++++++++++++++++++++++++-----------
sound/soc/codecs/wm_adsp.h | 1 +
2 files changed, 145 insertions(+), 43 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index bbdb72f..a9acf22 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -112,17 +112,22 @@
#define ADSP1_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
#define ADSP1_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */

-#define ADSP2_CONTROL 0x0
-#define ADSP2_CLOCKING 0x1
-#define ADSP2_STATUS1 0x4
-#define ADSP2_WDMA_CONFIG_1 0x30
-#define ADSP2_WDMA_CONFIG_2 0x31
-#define ADSP2_RDMA_CONFIG_1 0x34
-
-#define ADSP2_SCRATCH0 0x40
-#define ADSP2_SCRATCH1 0x41
-#define ADSP2_SCRATCH2 0x42
-#define ADSP2_SCRATCH3 0x43
+#define ADSP2_CONTROL 0x0
+#define ADSP2_CLOCKING 0x1
+#define ADSP2V2_CLOCKING 0x2
+#define ADSP2_STATUS1 0x4
+#define ADSP2_WDMA_CONFIG_1 0x30
+#define ADSP2_WDMA_CONFIG_2 0x31
+#define ADSP2V2_WDMA_CONFIG_2 0x32
+#define ADSP2_RDMA_CONFIG_1 0x34
+
+#define ADSP2_SCRATCH0 0x40
+#define ADSP2_SCRATCH1 0x41
+#define ADSP2_SCRATCH2 0x42
+#define ADSP2_SCRATCH3 0x43
+
+#define ADSP2V2_SCRATCH0_1 0x40
+#define ADSP2V2_SCRATCH2_3 0x42

/*
* ADSP2 Control
@@ -153,6 +158,17 @@
#define ADSP2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */

/*
+ * ADSP2V2 clocking
+ */
+#define ADSP2V2_CLK_SEL_MASK 0x70000 /* CLK_SEL_ENA */
+#define ADSP2V2_CLK_SEL_SHIFT 16 /* CLK_SEL_ENA */
+#define ADSP2V2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
+
+#define ADSP2V2_RATE_MASK 0x7800 /* DSP_RATE */
+#define ADSP2V2_RATE_SHIFT 11 /* DSP_RATE */
+#define ADSP2V2_RATE_WIDTH 4 /* DSP_RATE */
+
+/*
* ADSP2 Status 1
*/
#define ADSP2_RAM_RDY 0x0001
@@ -683,6 +699,9 @@ static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
+ SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
+ SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
+ SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
};

const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
@@ -694,6 +713,12 @@ static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
wm_adsp_fw_get, wm_adsp_fw_put),
SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
wm_adsp_fw_get, wm_adsp_fw_put),
+ SOC_ENUM_EXT("DSP5 Firmware", wm_adsp_fw_enum[4],
+ wm_adsp_fw_get, wm_adsp_fw_put),
+ SOC_ENUM_EXT("DSP6 Firmware", wm_adsp_fw_enum[5],
+ wm_adsp_fw_get, wm_adsp_fw_put),
+ SOC_ENUM_EXT("DSP7 Firmware", wm_adsp_fw_enum[6],
+ wm_adsp_fw_get, wm_adsp_fw_put),
};
EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);

@@ -750,6 +775,29 @@ static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
be16_to_cpu(scratch[3]));
}

+static void wm_adsp2v2_show_fw_status(struct wm_adsp *dsp)
+{
+ u32 scratch[2];
+ int ret;
+
+ ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2V2_SCRATCH0_1,
+ scratch, sizeof(scratch));
+
+ if (ret) {
+ adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
+ return;
+ }
+
+ scratch[0] = be32_to_cpu(scratch[0]);
+ scratch[1] = be32_to_cpu(scratch[1]);
+
+ adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
+ scratch[0] & 0xFFFF,
+ scratch[0] >> 16,
+ scratch[1] & 0xFFFF,
+ scratch[1] >> 16);
+}
+
static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
{
return container_of(ext, struct wm_coeff_ctl, bytes_ext);
@@ -2435,10 +2483,17 @@ static int wm_adsp2_ena(struct wm_adsp *dsp)
unsigned int val;
int ret, count;

- ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
- ADSP2_SYS_ENA, ADSP2_SYS_ENA);
- if (ret != 0)
- return ret;
+ switch (dsp->rev) {
+ case 0:
+ ret = regmap_update_bits_async(dsp->regmap,
+ dsp->base + ADSP2_CONTROL,
+ ADSP2_SYS_ENA, ADSP2_SYS_ENA);
+ if (ret != 0)
+ return ret;
+ break;
+ default:
+ break;
+ }

/* Wait for the RAM to start, should be near instantaneous */
for (count = 0; count < 10; ++count) {
@@ -2497,11 +2552,17 @@ static void wm_adsp2_boot_work(struct work_struct *work)
if (ret != 0)
goto err_ena;

- /* Turn DSP back off until we are ready to run */
- ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
- ADSP2_SYS_ENA, 0);
- if (ret != 0)
- goto err_ena;
+ switch (dsp->rev) {
+ case 0:
+ /* Turn DSP back off until we are ready to run */
+ ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
+ ADSP2_SYS_ENA, 0);
+ if (ret != 0)
+ goto err_ena;
+ break;
+ default:
+ break;
+ }

dsp->booted = true;

@@ -2523,12 +2584,21 @@ static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
{
int ret;

- ret = regmap_update_bits_async(dsp->regmap,
- dsp->base + ADSP2_CLOCKING,
- ADSP2_CLK_SEL_MASK,
- freq << ADSP2_CLK_SEL_SHIFT);
- if (ret != 0)
- adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
+ switch (dsp->rev) {
+ case 0:
+ ret = regmap_update_bits_async(dsp->regmap,
+ dsp->base + ADSP2_CLOCKING,
+ ADSP2_CLK_SEL_MASK,
+ freq << ADSP2_CLK_SEL_SHIFT);
+ if (ret) {
+ adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
+ return;
+ }
+ break;
+ default:
+ /* clock is handled by parent codec driver */
+ break;
+ }
}

int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
@@ -2664,22 +2734,46 @@ int wm_adsp2_event(struct snd_soc_dapm_widget *w,
wm_adsp_signal_event_controls(dsp, WM_ADSP_FW_EVENT_SHUTDOWN);

/* Log firmware state, it can be useful for analysis */
- wm_adsp2_show_fw_status(dsp);
+ switch (dsp->rev) {
+ case 0:
+ wm_adsp2_show_fw_status(dsp);
+ break;
+ default:
+ wm_adsp2v2_show_fw_status(dsp);
+ break;
+ }

mutex_lock(&dsp->pwr_lock);

dsp->running = false;

- regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
+ regmap_update_bits(dsp->regmap,
+ dsp->base + ADSP2_CONTROL,
ADSP2_CORE_ENA | ADSP2_START, 0);

/* Make sure DMAs are quiesced */
- regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
- regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
- regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
-
- regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
- ADSP2_SYS_ENA, 0);
+ switch (dsp->rev) {
+ case 0:
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2_RDMA_CONFIG_1, 0);
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2_WDMA_CONFIG_1, 0);
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2_WDMA_CONFIG_2, 0);
+
+ regmap_update_bits(dsp->regmap,
+ dsp->base + ADSP2_CONTROL,
+ ADSP2_SYS_ENA, 0);
+ break;
+ default:
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2_RDMA_CONFIG_1, 0);
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2_WDMA_CONFIG_1, 0);
+ regmap_write(dsp->regmap,
+ dsp->base + ADSP2V2_WDMA_CONFIG_2, 0);
+ break;
+ }

if (wm_adsp_fw[dsp->fw].num_caps != 0)
wm_adsp_buffer_free(dsp);
@@ -2732,15 +2826,22 @@ int wm_adsp2_init(struct wm_adsp *dsp)
{
int ret;

- /*
- * Disable the DSP memory by default when in reset for a small
- * power saving.
- */
- ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
- ADSP2_MEM_ENA, 0);
- if (ret != 0) {
- adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
- return ret;
+ switch (dsp->rev) {
+ case 0:
+ /*
+ * Disable the DSP memory by default when in reset for a small
+ * power saving.
+ */
+ ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
+ ADSP2_MEM_ENA, 0);
+ if (ret) {
+ adsp_err(dsp,
+ "Failed to clear memory retention: %d\n", ret);
+ return ret;
+ }
+ break;
+ default:
+ break;
}

INIT_LIST_HEAD(&dsp->alg_regions);
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index 3706b11..997227f 100644
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -40,6 +40,7 @@ struct wm_adsp_alg_region {

struct wm_adsp {
const char *part;
+ int rev;
int num;
int type;
struct device *dev;
--
1.9.1