On Sep 15 2017 13:32, Hsin-Yu Chao wrote:
This reverts commit eb33869c7206 ("ASoC: rt5514: Guard Hotword Model bytes
loading") and commit d18420b0a0b8 ("ASoC: rt5514: expose Hotword Model
control")
It is discouraged to use SND_SOC_BYTES_TLV to load arbitrary bytes from
userspace to driver. Removing the 'Hotword Model' control until we have
a good way to verify the content of hotword model blobs.
Signed-off-by: Hsin-Yu Chao <hychao@xxxxxxxxxxxx>
---
sound/soc/codecs/rt5514.c | 63 -----------------------------------------------
sound/soc/codecs/rt5514.h | 3 ---
2 files changed, 66 deletions(-)
Reviewed-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
I reviewed this patch on 8bc23183b6fe ('Merge remote-tracking branches
'asoc/fix/adau17x1', 'asoc/fix/rockchip', 'asoc/fix/rt5514' and
'asoc/fix/samsung' into asoc-linus') in Mark's tree.
For the issue I mentioned[1], please have discussions with Intel
developers (especially Vinod Koul) and authors of
'sound/soc/codecs/wm_adsp.c' and find better solution for yours.
I note that ALSA hwdep interface for userspace includes
'SNDRV_HWDEP_IOCTL_DSP_LOAD' ioctl(2) command to load binary blob from
userspace.
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index 250581082e9d..a2722177470e 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -335,39 +335,6 @@ static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
fw = NULL;
}
- if (rt5514->model_buf && rt5514->model_len) {
-#if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
- int ret;
-
- ret = rt5514_spi_burst_write(0x4ff80000,
- rt5514->model_buf,
- ((rt5514->model_len / 8) + 1) * 8);
- if (ret) {
- dev_err(codec->dev,
- "Model load failed %d\n", ret);
- return ret;
- }
-#else
- dev_err(codec->dev,
- "No SPI driver for loading firmware\n");
-#endif
- } else {
- request_firmware(&fw, RT5514_FIRMWARE3,
- codec->dev);
- if (fw) {
-#if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
- rt5514_spi_burst_write(0x4ff80000,
- fw->data,
- ((fw->size/8)+1)*8);
-#else
- dev_err(codec->dev,
- "No SPI driver to load fw\n");
-#endif
- release_firmware(fw);
- fw = NULL;
- }
- }
-
/* DSP run */
regmap_write(rt5514->i2c_regmap, 0x18002f00,
0x00055148);
@@ -382,34 +349,6 @@ static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
return 0;
}
-static int rt5514_hotword_model_put(struct snd_kcontrol *kcontrol,
- const unsigned int __user *bytes, unsigned int size)
-{
- struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
- struct snd_soc_codec *codec = rt5514->codec;
- int ret = 0;
-
- if (rt5514->model_buf || rt5514->model_len < size) {
- if (rt5514->model_buf)
- devm_kfree(codec->dev, rt5514->model_buf);
- rt5514->model_buf = devm_kmalloc(codec->dev, size, GFP_KERNEL);
- if (!rt5514->model_buf) {
- ret = -ENOMEM;
- goto done;
- }
- }
-
- /* Skips the TLV header. */
- bytes += 2;
-
- if (copy_from_user(rt5514->model_buf, bytes, size))
- ret = -EFAULT;
-done:
- rt5514->model_len = (ret ? 0 : size);
- return ret;
-}
-
static const struct snd_kcontrol_new rt5514_snd_controls[] = {
SOC_DOUBLE_TLV("MIC Boost Volume", RT5514_ANA_CTRL_MICBST,
RT5514_SEL_BSTL_SFT, RT5514_SEL_BSTR_SFT, 8, 0, bst_tlv),
@@ -421,8 +360,6 @@ static const struct snd_kcontrol_new rt5514_snd_controls[] = {
adc_vol_tlv),
SOC_SINGLE_EXT("DSP Voice Wake Up", SND_SOC_NOPM, 0, 1, 0,
rt5514_dsp_voice_wake_up_get, rt5514_dsp_voice_wake_up_put),
- SND_SOC_BYTES_TLV("Hotword Model", 0x8504,
- NULL, rt5514_hotword_model_put),
};
/* ADC Mixer*/
diff --git a/sound/soc/codecs/rt5514.h b/sound/soc/codecs/rt5514.h
index 07475a9918d2..02bc212a86d9 100644
--- a/sound/soc/codecs/rt5514.h
+++ b/sound/soc/codecs/rt5514.h
@@ -236,7 +236,6 @@
#define RT5514_FIRMWARE1 "rt5514_dsp_fw1.bin"
#define RT5514_FIRMWARE2 "rt5514_dsp_fw2.bin"
-#define RT5514_FIRMWARE3 "rt5514_dsp_fw3.bin"
/* System Clock Source */
enum {
@@ -263,8 +262,6 @@ struct rt5514_priv {
int pll_in;
int pll_out;
int dsp_enabled;
- u8 *model_buf;
- unsigned int model_len;
};
#endif /* __RT5514_H__ */
[1]
http://mailman.alsa-project.org/pipermail/alsa-devel/2017-September/125474.html
Regards
Takashi Sakamoto
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