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ASoC: wm_adsp: Add support for DSP control flags 

The DSP control information contains various hints about the usage of
the control use these when handling the control.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2015-04-20 13:52:45 +01:00 committed by Mark Brown
parent 8299ee8123
commit 26c22a1922
2 changed files with 40 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
sound/soc/codecs/wm_adsp.c
View File

@ -240,6 +240,7 @@ struct wm_coeff_ctl {
size_t len;
unsigned int set:1;
struct snd_kcontrol *kcontrol;
unsigned int flags;
};
static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
@ -472,7 +473,15 @@ static int wm_coeff_get(struct snd_kcontrol *kcontrol,
struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
char *p = ucontrol->value.bytes.data;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
if (ctl->enabled)
return wm_coeff_read_control(ctl, p, ctl->len);
else
return -EPERM;
}
memcpy(p, ctl->cache, ctl->len);
return 0;
}
@ -501,6 +510,15 @@ static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
kcontrol->put = wm_coeff_put;
kcontrol->private_value = (unsigned long)ctl;
if (ctl->flags) {
if (ctl->flags & WMFW_CTL_FLAG_WRITEABLE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
if (ctl->flags & WMFW_CTL_FLAG_READABLE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_READ;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
}
ret = snd_soc_add_card_controls(dsp->card,
kcontrol, 1);
if (ret < 0)
@ -526,6 +544,9 @@ static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled || ctl->set)
continue;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
continue;
ret = wm_coeff_read_control(ctl,
ctl->cache,
ctl->len);
@ -544,7 +565,7 @@ static int wm_coeff_sync_controls(struct wm_adsp *dsp)
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled)
continue;
if (ctl->set) {
if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
ret = wm_coeff_write_control(ctl,
ctl->cache,
ctl->len);
@ -569,7 +590,8 @@ static void wm_adsp_ctl_work(struct work_struct *work)
static int wm_adsp_create_control(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region,
unsigned int offset, unsigned int len,
const char *subname, unsigned int subname_len)
const char *subname, unsigned int subname_len,
unsigned int flags)
{
struct wm_coeff_ctl *ctl;
struct wmfw_ctl_work *ctl_work;
@ -577,6 +599,9 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
char *region_name;
int ret;
if (flags & WMFW_CTL_FLAG_SYS)
return 0;
switch (alg_region->type) {
case WMFW_ADSP1_PM:
region_name = "PM";
@ -649,6 +674,7 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
ctl->ops.xput = wm_coeff_put;
ctl->dsp = dsp;
ctl->flags = flags;
ctl->offset = offset;
if (len > 512) {
adsp_warn(dsp, "Truncating control %s from %d\n",
@ -852,7 +878,8 @@ static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
coeff_blk.offset,
coeff_blk.len,
coeff_blk.name,
coeff_blk.name_len);
coeff_blk.name_len,
coeff_blk.flags);
if (ret < 0)
adsp_err(dsp, "Failed to create control: %.*s, %d\n",
coeff_blk.name_len, coeff_blk.name, ret);
@ -1237,7 +1264,7 @@ static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
len -= be32_to_cpu(adsp1_alg[i].dm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0);
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
@ -1257,7 +1284,7 @@ static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
len -= be32_to_cpu(adsp1_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0);
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
@ -1347,7 +1374,7 @@ static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
len -= be32_to_cpu(adsp2_alg[i].xm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0);
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
@ -1367,7 +1394,7 @@ static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
len -= be32_to_cpu(adsp2_alg[i].ym);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0);
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
@ -1387,7 +1414,7 @@ static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
len -= be32_to_cpu(adsp2_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0);
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));

5
sound/soc/codecs/wmfw.h
View File

@ -21,6 +21,11 @@
#define WMFW_MAX_COEFF_NAME 256
#define WMFW_MAX_COEFF_DESCR_NAME 256
#define WMFW_CTL_FLAG_SYS 0x8000
#define WMFW_CTL_FLAG_VOLATILE 0x0004
#define WMFW_CTL_FLAG_WRITEABLE 0x0002
#define WMFW_CTL_FLAG_READABLE 0x0001
struct wmfw_header {
char magic[4];
__le32 len;