Each kcontrol command includes a line of parameters up to 128 bytes.
kcontrol command to set param:
cset "name='Waves Set Param' <0x01,0xff,...>"
or
cset-bin-file "name='Waves Set Param' <path/to/binary/config/file>"
The parameter lines are stored in a buffer array, so can be read back from
buffer rather than from DSP, and be relaunched to DSP when resume from RTD3.
The buffer size is 160 parameter lines.
kcontrol command to reset the buffer:
cset "name='Waves Set Param' 0xff"
alsa-lib v1.0.29 or commit
6ea14c36 and
f47480af are required to support the
kcontrol commands.
Signed-off-by: Lu, Han <han.lu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
/* flags bit field to track module state when resume from RTD3,
* each bit represent state (enabled/disabled) of single module */
u32 enabled_modules_rtd3;
+
+ /* buffer to store parameter lines */
+ u32 param_idx_w; /* write index */
+ u32 param_idx_r; /* read index */
+ u8 param_buf[WAVES_PARAM_LINES][WAVES_PARAM_COUNT];
};
#define CREATE_TRACE_POINTS
return hsw->enabled_modules_rtd3 & (1 << module_id);
}
+void sst_hsw_reset_param_buf(struct sst_hsw *hsw)
+{
+ hsw->param_idx_w = 0;
+ hsw->param_idx_r = 0;
+ memset((void *)hsw->param_buf, 0, sizeof(hsw->param_buf));
+}
+
+int sst_hsw_store_param_line(struct sst_hsw *hsw, u8 *buf)
+{
+ /* save line to the first available position of param buffer */
+ if (hsw->param_idx_w > WAVES_PARAM_LINES - 1) {
+ dev_warn(hsw->dev, "warning: param buffer overflow!\n");
+ return -EPERM;
+ }
+ memcpy(hsw->param_buf[hsw->param_idx_w], buf, WAVES_PARAM_COUNT);
+ hsw->param_idx_w++;
+ return 0;
+}
+
+int sst_hsw_load_param_line(struct sst_hsw *hsw, u8 *buf)
+{
+ u8 id = 0;
+
+ /* read the first matching line from param buffer */
+ while (hsw->param_idx_r < WAVES_PARAM_LINES) {
+ id = hsw->param_buf[hsw->param_idx_r][0];
+ hsw->param_idx_r++;
+ if (buf[0] == id) {
+ memcpy(buf, hsw->param_buf[hsw->param_idx_r],
+ WAVES_PARAM_COUNT);
+ break;
+ }
+ }
+ if (hsw->param_idx_r > WAVES_PARAM_LINES - 1) {
+ dev_dbg(hsw->dev, "end of buffer, roll to the beginning\n");
+ hsw->param_idx_r = 0;
+ return 0;
+ }
+ return 0;
+}
+
+int sst_hsw_launch_param_buf(struct sst_hsw *hsw)
+{
+ int ret, idx;
+
+ /* put all param lines to DSP through ipc */
+ for (idx = 0; idx < hsw->param_idx_w; idx++) {
+ ret = sst_hsw_module_set_param(hsw,
+ SST_HSW_MODULE_WAVES, 0, hsw->param_buf[idx][0],
+ WAVES_PARAM_COUNT, hsw->param_buf[idx]);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
int sst_hsw_module_load(struct sst_hsw *hsw,
u32 module_id, u32 instance_id, char *name)
{
if (ret < 0)
goto boot_err;
+ /* init param buffer */
+ sst_hsw_reset_param_buf(hsw);
+
/* wait for DSP boot completion */
sst_dsp_boot(hsw->dsp);
ret = wait_event_timeout(hsw->boot_wait, hsw->boot_complete,
#define SST_HSW_MAX_INFO_SIZE 64
#define SST_HSW_BUILD_HASH_LENGTH 40
#define SST_HSW_IPC_MAX_SHORT_PARAMETER_SIZE 500
+#define WAVES_PARAM_COUNT 128
+#define WAVES_PARAM_LINES 160
struct sst_hsw;
struct sst_hsw_stream;
void sst_hsw_set_module_enabled_rtd3(struct sst_hsw *hsw, u32 module_id);
void sst_hsw_set_module_disabled_rtd3(struct sst_hsw *hsw, u32 module_id);
bool sst_hsw_is_module_enabled_rtd3(struct sst_hsw *hsw, u32 module_id);
+void sst_hsw_reset_param_buf(struct sst_hsw *hsw);
+int sst_hsw_store_param_line(struct sst_hsw *hsw, u8 *buf);
+int sst_hsw_load_param_line(struct sst_hsw *hsw, u8 *buf);
+int sst_hsw_launch_param_buf(struct sst_hsw *hsw);
int sst_hsw_module_load(struct sst_hsw *hsw,
u32 module_id, u32 instance_id, char *name);
return ret;
}
+static int hsw_waves_param_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
+ struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
+ struct sst_hsw *hsw = pdata->hsw;
+
+ /* return a matching line from param buffer */
+ return sst_hsw_load_param_line(hsw, ucontrol->value.bytes.data);
+}
+
+static int hsw_waves_param_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
+ struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
+ struct sst_hsw *hsw = pdata->hsw;
+ int ret;
+ enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
+ int param_id = ucontrol->value.bytes.data[0];
+ int param_size = WAVES_PARAM_COUNT;
+
+ /* clear param buffer and reset buffer index */
+ if (param_id == 0xFF) {
+ sst_hsw_reset_param_buf(hsw);
+ return 0;
+ }
+
+ /* store params into buffer */
+ ret = sst_hsw_store_param_line(hsw, ucontrol->value.bytes.data);
+ if (ret < 0)
+ return ret;
+
+ if (sst_hsw_is_module_loaded(hsw, id)) {
+ if (!sst_hsw_is_module_active(hsw, id))
+ return 0;
+
+ ret = sst_hsw_module_set_param(hsw, id, 0, param_id,
+ param_size, ucontrol->value.bytes.data);
+ }
+ return ret;
+}
+
/* TLV used by both global and stream volumes */
static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
/* enable/disable module waves */
SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
hsw_waves_switch_get, hsw_waves_switch_put),
+ /* set parameters to module waves */
+ SND_SOC_BYTES_EXT("Waves Set Param", WAVES_PARAM_COUNT,
+ hsw_waves_param_get, hsw_waves_param_put),
};
/* Create DMA buffer page table for DSP */
/* check flag when resume */
if (sst_hsw_is_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES)) {
ret = sst_hsw_module_enable(hsw, SST_HSW_MODULE_WAVES, 0);
+ if (ret < 0)
+ return ret;
+ /* put parameters from buffer to dsp */
+ ret = sst_hsw_launch_param_buf(hsw);
if (ret < 0)
return ret;
/* unset flag */