Allow a coefficient set provided using the Wolfson callibration tools to be provided along with the firmware files. Currently only coefficient files which configure absolute register addresses are supported.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/wm2200.c | 194 +++++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/wmfw.h | 43 ++++++++++ 2 files changed, 237 insertions(+)
diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c index e3f549b..06d4e61 100644 --- a/sound/soc/codecs/wm2200.c +++ b/sound/soc/codecs/wm2200.c @@ -1150,6 +1150,192 @@ out: return ret; }
+static int wm2200_setup_algs(struct snd_soc_codec *codec, int base) +{ + struct regmap *regmap = codec->control_data; + struct wmfw_adsp1_id_hdr id; + struct wmfw_adsp1_alg_hdr *alg; + size_t algs; + int zm, dm, pm, ret, i; + __be32 val; + + switch (base) { + case WM2200_DSP1_CONTROL_1: + dm = WM2200_DSP1_DM_BASE; + pm = WM2200_DSP1_PM_BASE; + zm = WM2200_DSP1_ZM_BASE; + break; + case WM2200_DSP2_CONTROL_1: + dm = WM2200_DSP2_DM_BASE; + pm = WM2200_DSP2_PM_BASE; + zm = WM2200_DSP2_ZM_BASE; + break; + default: + dev_err(codec->dev, "BASE %x\n", base); + BUG_ON(1); + return -EINVAL; + } + + ret = regmap_raw_read(regmap, dm, &id, sizeof(id)); + if (ret != 0) { + dev_err(codec->dev, "Failed to read algorithm info: %d\n", + ret); + return ret; + } + + algs = be32_to_cpu(id.algs); + dev_info(codec->dev, "Firmware: %x v%d.%d.%d, %d algorithms\n", + be32_to_cpu(id.fw.id), + (be32_to_cpu(id.fw.ver) & 0xff000) >> 16, + (be32_to_cpu(id.fw.ver) & 0xff00) >> 8, + be32_to_cpu(id.fw.ver) & 0xff, + algs); + + /* Read the terminator first to validate the length */ + ret = regmap_raw_read(regmap, dm + + (sizeof(id) + (algs * sizeof(*alg))) / 2, + &val, sizeof(val)); + if (ret != 0) { + dev_err(codec->dev, "Failed to read algorithm list end: %d\n", + ret); + return ret; + } + + if (be32_to_cpu(val) != 0xbedead) + dev_warn(codec->dev, "Algorithm list end %x 0x%x != 0xbeadead\n", + (sizeof(id) + (algs * sizeof(*alg))) / 2, + be32_to_cpu(val)); + + alg = kzalloc(sizeof(*alg) * algs, GFP_KERNEL); + if (!alg) + return -ENOMEM; + + ret = regmap_raw_read(regmap, dm + (sizeof(id) / 2), + alg, algs * sizeof(*alg)); + if (ret != 0) { + dev_err(codec->dev, "Failed to read algorithm list: %d\n", + ret); + goto out; + } + + for (i = 0; i < algs; i++) { + dev_info(codec->dev, "%d: ID %x v%d.%d.%d\n", + i, be32_to_cpu(alg[i].alg.id), + (be32_to_cpu(alg[i].alg.ver) & 0xff000) >> 16, + (be32_to_cpu(alg[i].alg.ver) & 0xff00) >> 8, + be32_to_cpu(alg[i].alg.ver) & 0xff); + } + +out: + kfree(alg); + return ret; +} + +static int wm2200_load_coeff(struct snd_soc_codec *codec, int base) +{ + struct regmap *regmap = codec->control_data; + struct wmfw_coeff_hdr *hdr; + struct wmfw_coeff_item *blk; + const struct firmware *firmware; + const char *file, *region_name; + int ret, dm, pm, zm, pos, blocks, type, offset, reg; + + switch (base) { + case WM2200_DSP1_CONTROL_1: + file = "wm2200-dsp1.bin"; + dm = WM2200_DSP1_DM_BASE; + pm = WM2200_DSP1_PM_BASE; + zm = WM2200_DSP1_ZM_BASE; + break; + case WM2200_DSP2_CONTROL_1: + file = "wm2200-dsp2.bin"; + dm = WM2200_DSP2_DM_BASE; + pm = WM2200_DSP2_PM_BASE; + zm = WM2200_DSP2_ZM_BASE; + break; + default: + dev_err(codec->dev, "BASE %x\n", base); + BUG_ON(1); + return -EINVAL; + } + + ret = request_firmware(&firmware, file, codec->dev); + if (ret != 0) { + dev_err(codec->dev, "Failed to request '%s'\n", file); + return ret; + } + + if (sizeof(*hdr) >= firmware->size) { + dev_err(codec->dev, "%s: file too short, %d bytes\n", + file, firmware->size); + return -EINVAL; + } + + hdr = (void*)&firmware->data[0]; + if (memcmp(hdr->magic, "WMDR", 4) != 0) { + dev_err(codec->dev, "%s: invalid magic\n", file); + return -EINVAL; + } + + dev_dbg(codec->dev, "%s: v%d.%d.%d\n", file, + (le32_to_cpu(hdr->ver) >> 16) & 0xff, + (le32_to_cpu(hdr->ver) >> 8) & 0xff, + le32_to_cpu(hdr->ver) & 0xff); + + pos = le32_to_cpu(hdr->len); + + blocks = 0; + while (pos < firmware->size && + pos - firmware->size > sizeof(*blk)) { + blk = (void*)(&firmware->data[pos]); + + type = be32_to_cpu(blk->type) & 0xff; + offset = le32_to_cpu(blk->offset) & 0xffffff; + + dev_dbg(codec->dev, "%s.%d: %x v%d.%d.%d\n", + file, blocks, le32_to_cpu(blk->id), + (le32_to_cpu(blk->ver) >> 16) & 0xff, + (le32_to_cpu(blk->ver) >> 8) & 0xff, + le32_to_cpu(blk->ver) & 0xff); + dev_dbg(codec->dev, "%s.%d: %d bytes at 0x%x in %x\n", + file, blocks, le32_to_cpu(blk->len), offset, type); + + reg = 0; + region_name = "Unknown"; + switch (type) { + case WMFW_NAME_TEXT: + case WMFW_INFO_TEXT: + break; + case WMFW_ABSOLUTE: + region_name = "register"; + reg = offset; + break; + default: + dev_err(codec->dev, "Unknown region type %x\n", type); + break; + } + + if (reg) { + ret = regmap_raw_write(regmap, reg, blk->data, + le32_to_cpu(blk->len)); + if (ret != 0) { + dev_err(codec->dev, + "%s.%d: Failed to write to %x in %s\n", + file, blocks, reg, region_name); + } + } + + pos += le32_to_cpu(blk->len) + sizeof(*blk); + blocks++; + } + + if (pos > firmware->size) + dev_warn(codec->dev, "%s.%d: %d bytes at end of file\n", + file, blocks, pos - firmware->size); + + return 0; +} + static int wm2200_dsp_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) @@ -1164,6 +1350,14 @@ static int wm2200_dsp_ev(struct snd_soc_dapm_widget *w, if (ret != 0) return ret;
+ ret = wm2200_setup_algs(codec, base); + if (ret != 0) + return ret; + + ret = wm2200_load_coeff(codec, base); + if (ret != 0) + return ret; + /* Start the core running */ snd_soc_update_bits(codec, w->reg, WM2200_DSP1_CORE_ENA | WM2200_DSP1_START, diff --git a/sound/soc/codecs/wmfw.h b/sound/soc/codecs/wmfw.h index ef37316..5791f8e 100644 --- a/sound/soc/codecs/wmfw.h +++ b/sound/soc/codecs/wmfw.h @@ -43,6 +43,49 @@ struct wmfw_region { u8 data[]; } __packed;
+struct wmfw_id_hdr { + __be32 core_id; + __be32 core_rev; + __be32 id; + __be32 ver; +} __packed; + +struct wmfw_adsp1_id_hdr { + struct wmfw_id_hdr fw; + __be32 zm; + __be32 dm; + __be32 algs; +} __packed; + +struct wmfw_alg_hdr { + __be32 id; + __be32 ver; +} __packed; + +struct wmfw_adsp1_alg_hdr { + struct wmfw_alg_hdr alg; + __be32 zm; + __be32 dm; +} __packed; + +struct wmfw_coeff_hdr { + u8 magic[4]; + __le32 len; + __le32 ver; + u8 data[]; +} __packed; + +struct wmfw_coeff_item { + union { + __be32 type; + __le32 offset; + }; + __le32 id; + __le32 ver; + __le32 sr; + __le32 len; + u8 data[]; +} __packed; #define WMFW_ADSP1 1
#define WMFW_ABSOLUTE 0xf0