diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_audio.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_audio.c | 662 |
1 files changed, 193 insertions, 469 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_audio.c b/drivers/gpu/drm/msm/dp/dp_audio.c index 6666783e1468..41018e82efa1 100644 --- a/drivers/gpu/drm/msm/dp/dp_audio.c +++ b/drivers/gpu/drm/msm/dp/dp_audio.c @@ -6,372 +6,175 @@ #define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__ -#include <linux/of_platform.h> +#include <linux/platform_device.h> #include <drm/display/drm_dp_helper.h> #include <drm/drm_edid.h> -#include "dp_catalog.h" #include "dp_audio.h" +#include "dp_drm.h" #include "dp_panel.h" +#include "dp_reg.h" #include "dp_display.h" +#include "dp_utils.h" -#define HEADER_BYTE_2_BIT 0 -#define PARITY_BYTE_2_BIT 8 -#define HEADER_BYTE_1_BIT 16 -#define PARITY_BYTE_1_BIT 24 -#define HEADER_BYTE_3_BIT 16 -#define PARITY_BYTE_3_BIT 24 - -struct dp_audio_private { - struct platform_device *audio_pdev; +struct msm_dp_audio_private { struct platform_device *pdev; struct drm_device *drm_dev; - struct dp_catalog *catalog; - struct dp_panel *panel; + void __iomem *link_base; - bool engine_on; u32 channels; - struct dp_audio dp_audio; + struct msm_dp_audio msm_dp_audio; }; -static u8 dp_audio_get_g0_value(u8 data) +static inline u32 msm_dp_read_link(struct msm_dp_audio_private *audio, u32 offset) { - u8 c[4]; - u8 g[4]; - u8 ret_data = 0; - u8 i; - - for (i = 0; i < 4; i++) - c[i] = (data >> i) & 0x01; - - g[0] = c[3]; - g[1] = c[0] ^ c[3]; - g[2] = c[1]; - g[3] = c[2]; - - for (i = 0; i < 4; i++) - ret_data = ((g[i] & 0x01) << i) | ret_data; - - return ret_data; + return readl_relaxed(audio->link_base + offset); } -static u8 dp_audio_get_g1_value(u8 data) +static inline void msm_dp_write_link(struct msm_dp_audio_private *audio, + u32 offset, u32 data) { - u8 c[4]; - u8 g[4]; - u8 ret_data = 0; - u8 i; - - for (i = 0; i < 4; i++) - c[i] = (data >> i) & 0x01; - - g[0] = c[0] ^ c[3]; - g[1] = c[0] ^ c[1] ^ c[3]; - g[2] = c[1] ^ c[2]; - g[3] = c[2] ^ c[3]; - - for (i = 0; i < 4; i++) - ret_data = ((g[i] & 0x01) << i) | ret_data; - - return ret_data; + /* + * To make sure link reg writes happens before any other operation, + * this function uses writel() instread of writel_relaxed() + */ + writel(data, audio->link_base + offset); } -static u8 dp_audio_calculate_parity(u32 data) +static void msm_dp_audio_stream_sdp(struct msm_dp_audio_private *audio) { - u8 x0 = 0; - u8 x1 = 0; - u8 ci = 0; - u8 iData = 0; - u8 i = 0; - u8 parity_byte; - u8 num_byte = (data & 0xFF00) > 0 ? 8 : 2; - - for (i = 0; i < num_byte; i++) { - iData = (data >> i*4) & 0xF; - - ci = iData ^ x1; - x1 = x0 ^ dp_audio_get_g1_value(ci); - x0 = dp_audio_get_g0_value(ci); - } - - parity_byte = x1 | (x0 << 4); - - return parity_byte; + struct dp_sdp_header sdp_hdr = { + .HB0 = 0x00, + .HB1 = 0x02, + .HB2 = 0x00, + .HB3 = audio->channels - 1, + }; + u32 header[2]; + + msm_dp_utils_pack_sdp_header(&sdp_hdr, header); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_STREAM_0, header[0]); + msm_dp_write_link(audio, MMSS_DP_AUDIO_STREAM_1, header[1]); } -static u32 dp_audio_get_header(struct dp_catalog *catalog, - enum dp_catalog_audio_sdp_type sdp, - enum dp_catalog_audio_header_type header) +static void msm_dp_audio_timestamp_sdp(struct msm_dp_audio_private *audio) { - catalog->sdp_type = sdp; - catalog->sdp_header = header; - dp_catalog_audio_get_header(catalog); - - return catalog->audio_data; + struct dp_sdp_header sdp_hdr = { + .HB0 = 0x00, + .HB1 = 0x01, + .HB2 = 0x17, + .HB3 = 0x0 | (0x11 << 2), + }; + u32 header[2]; + + msm_dp_utils_pack_sdp_header(&sdp_hdr, header); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_TIMESTAMP_0, header[0]); + msm_dp_write_link(audio, MMSS_DP_AUDIO_TIMESTAMP_1, header[1]); } -static void dp_audio_set_header(struct dp_catalog *catalog, - u32 data, - enum dp_catalog_audio_sdp_type sdp, - enum dp_catalog_audio_header_type header) +static void msm_dp_audio_infoframe_sdp(struct msm_dp_audio_private *audio) { - catalog->sdp_type = sdp; - catalog->sdp_header = header; - catalog->audio_data = data; - dp_catalog_audio_set_header(catalog); + struct dp_sdp_header sdp_hdr = { + .HB0 = 0x00, + .HB1 = 0x84, + .HB2 = 0x1b, + .HB3 = 0x0 | (0x11 << 2), + }; + u32 header[2]; + + msm_dp_utils_pack_sdp_header(&sdp_hdr, header); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_INFOFRAME_0, header[0]); + msm_dp_write_link(audio, MMSS_DP_AUDIO_INFOFRAME_1, header[1]); } -static void dp_audio_stream_sdp(struct dp_audio_private *audio) +static void msm_dp_audio_copy_management_sdp(struct msm_dp_audio_private *audio) { - struct dp_catalog *catalog = audio->catalog; - u32 value, new_value; - u8 parity_byte; - - /* Config header and parity byte 1 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_1); - - new_value = 0x02; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_1_BIT) - | (parity_byte << PARITY_BYTE_1_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_1); - - /* Config header and parity byte 2 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_2); - new_value = value; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_2_BIT) - | (parity_byte << PARITY_BYTE_2_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_2); - - /* Config header and parity byte 3 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_3); - - new_value = audio->channels - 1; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_3_BIT) - | (parity_byte << PARITY_BYTE_3_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_3); + struct dp_sdp_header sdp_hdr = { + .HB0 = 0x00, + .HB1 = 0x05, + .HB2 = 0x0f, + .HB3 = 0x00, + }; + u32 header[2]; + + msm_dp_utils_pack_sdp_header(&sdp_hdr, header); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_COPYMANAGEMENT_0, header[0]); + msm_dp_write_link(audio, MMSS_DP_AUDIO_COPYMANAGEMENT_1, header[1]); } -static void dp_audio_timestamp_sdp(struct dp_audio_private *audio) +static void msm_dp_audio_isrc_sdp(struct msm_dp_audio_private *audio) { - struct dp_catalog *catalog = audio->catalog; - u32 value, new_value; - u8 parity_byte; - - /* Config header and parity byte 1 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_1); - - new_value = 0x1; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_1_BIT) - | (parity_byte << PARITY_BYTE_1_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_1); - - /* Config header and parity byte 2 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_2); - - new_value = 0x17; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_2_BIT) - | (parity_byte << PARITY_BYTE_2_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_2); - - /* Config header and parity byte 3 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_3); - - new_value = (0x0 | (0x11 << 2)); - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_3_BIT) - | (parity_byte << PARITY_BYTE_3_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_3); + struct dp_sdp_header sdp_hdr = { + .HB0 = 0x00, + .HB1 = 0x06, + .HB2 = 0x0f, + .HB3 = 0x00, + }; + u32 header[2]; + u32 reg; + + /* XXX: is it necessary to preserve this field? */ + reg = msm_dp_read_link(audio, MMSS_DP_AUDIO_ISRC_1); + sdp_hdr.HB3 = FIELD_GET(HEADER_3_MASK, reg); + + msm_dp_utils_pack_sdp_header(&sdp_hdr, header); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_ISRC_0, header[0]); + msm_dp_write_link(audio, MMSS_DP_AUDIO_ISRC_1, header[1]); } -static void dp_audio_infoframe_sdp(struct dp_audio_private *audio) +static void msm_dp_audio_config_sdp(struct msm_dp_audio_private *audio) { - struct dp_catalog *catalog = audio->catalog; - u32 value, new_value; - u8 parity_byte; - - /* Config header and parity byte 1 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_1); - - new_value = 0x84; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_1_BIT) - | (parity_byte << PARITY_BYTE_1_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_1); - - /* Config header and parity byte 2 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_2); - - new_value = 0x1b; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_2_BIT) - | (parity_byte << PARITY_BYTE_2_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_2); - - /* Config header and parity byte 3 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_3); - - new_value = (0x0 | (0x11 << 2)); - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_3_BIT) - | (parity_byte << PARITY_BYTE_3_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n", - new_value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_3); -} + u32 sdp_cfg, sdp_cfg2; -static void dp_audio_copy_management_sdp(struct dp_audio_private *audio) -{ - struct dp_catalog *catalog = audio->catalog; - u32 value, new_value; - u8 parity_byte; - - /* Config header and parity byte 1 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_1); - - new_value = 0x05; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_1_BIT) - | (parity_byte << PARITY_BYTE_1_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_1); - - /* Config header and parity byte 2 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_2); - - new_value = 0x0F; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_2_BIT) - | (parity_byte << PARITY_BYTE_2_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_2); - - /* Config header and parity byte 3 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_3); - - new_value = 0x0; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_3_BIT) - | (parity_byte << PARITY_BYTE_3_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_3); -} + sdp_cfg = msm_dp_read_link(audio, MMSS_DP_SDP_CFG); + /* AUDIO_TIMESTAMP_SDP_EN */ + sdp_cfg |= BIT(1); + /* AUDIO_STREAM_SDP_EN */ + sdp_cfg |= BIT(2); + /* AUDIO_COPY_MANAGEMENT_SDP_EN */ + sdp_cfg |= BIT(5); + /* AUDIO_ISRC_SDP_EN */ + sdp_cfg |= BIT(6); + /* AUDIO_INFOFRAME_SDP_EN */ + sdp_cfg |= BIT(20); -static void dp_audio_isrc_sdp(struct dp_audio_private *audio) -{ - struct dp_catalog *catalog = audio->catalog; - u32 value, new_value; - u8 parity_byte; - - /* Config header and parity byte 1 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_1); - - new_value = 0x06; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_1_BIT) - | (parity_byte << PARITY_BYTE_1_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_1); - - /* Config header and parity byte 2 */ - value = dp_audio_get_header(catalog, - DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_2); - - new_value = 0x0F; - parity_byte = dp_audio_calculate_parity(new_value); - value |= ((new_value << HEADER_BYTE_2_BIT) - | (parity_byte << PARITY_BYTE_2_BIT)); - drm_dbg_dp(audio->drm_dev, - "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n", - value, parity_byte); - dp_audio_set_header(catalog, value, - DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_2); + drm_dbg_dp(audio->drm_dev, "sdp_cfg = 0x%x\n", sdp_cfg); + + msm_dp_write_link(audio, MMSS_DP_SDP_CFG, sdp_cfg); + + sdp_cfg2 = msm_dp_read_link(audio, MMSS_DP_SDP_CFG2); + /* IFRM_REGSRC -> Do not use reg values */ + sdp_cfg2 &= ~BIT(0); + /* AUDIO_STREAM_HB3_REGSRC-> Do not use reg values */ + sdp_cfg2 &= ~BIT(1); + + drm_dbg_dp(audio->drm_dev, "sdp_cfg2 = 0x%x\n", sdp_cfg2); + + msm_dp_write_link(audio, MMSS_DP_SDP_CFG2, sdp_cfg2); } -static void dp_audio_setup_sdp(struct dp_audio_private *audio) +static void msm_dp_audio_setup_sdp(struct msm_dp_audio_private *audio) { - dp_catalog_audio_config_sdp(audio->catalog); + msm_dp_audio_config_sdp(audio); - dp_audio_stream_sdp(audio); - dp_audio_timestamp_sdp(audio); - dp_audio_infoframe_sdp(audio); - dp_audio_copy_management_sdp(audio); - dp_audio_isrc_sdp(audio); + msm_dp_audio_stream_sdp(audio); + msm_dp_audio_timestamp_sdp(audio); + msm_dp_audio_infoframe_sdp(audio); + msm_dp_audio_copy_management_sdp(audio); + msm_dp_audio_isrc_sdp(audio); } -static void dp_audio_setup_acr(struct dp_audio_private *audio) +static void msm_dp_audio_setup_acr(struct msm_dp_audio_private *audio) { - u32 select = 0; - struct dp_catalog *catalog = audio->catalog; + u32 select, acr_ctrl; - switch (audio->dp_audio.bw_code) { + switch (audio->msm_dp_audio.bw_code) { case DP_LINK_BW_1_62: select = 0; break; @@ -390,16 +193,19 @@ static void dp_audio_setup_acr(struct dp_audio_private *audio) break; } - catalog->audio_data = select; - dp_catalog_audio_config_acr(catalog); + acr_ctrl = select << 4 | BIT(31) | BIT(8) | BIT(14); + + drm_dbg_dp(audio->drm_dev, "select: %#x, acr_ctrl: %#x\n", + select, acr_ctrl); + + msm_dp_write_link(audio, MMSS_DP_AUDIO_ACR_CTRL, acr_ctrl); } -static void dp_audio_safe_to_exit_level(struct dp_audio_private *audio) +static void msm_dp_audio_safe_to_exit_level(struct msm_dp_audio_private *audio) { - struct dp_catalog *catalog = audio->catalog; - u32 safe_to_exit_level = 0; + u32 safe_to_exit_level, mainlink_levels; - switch (audio->dp_audio.lane_count) { + switch (audio->msm_dp_audio.lane_count) { case 1: safe_to_exit_level = 14; break; @@ -410,113 +216,65 @@ static void dp_audio_safe_to_exit_level(struct dp_audio_private *audio) safe_to_exit_level = 5; break; default: + safe_to_exit_level = 14; drm_dbg_dp(audio->drm_dev, "setting the default safe_to_exit_level = %u\n", safe_to_exit_level); - safe_to_exit_level = 14; break; } - catalog->audio_data = safe_to_exit_level; - dp_catalog_audio_sfe_level(catalog); -} - -static void dp_audio_enable(struct dp_audio_private *audio, bool enable) -{ - struct dp_catalog *catalog = audio->catalog; + mainlink_levels = msm_dp_read_link(audio, REG_DP_MAINLINK_LEVELS); + mainlink_levels &= 0xFE0; + mainlink_levels |= safe_to_exit_level; - catalog->audio_data = enable; - dp_catalog_audio_enable(catalog); + drm_dbg_dp(audio->drm_dev, + "mainlink_level = 0x%x, safe_to_exit_level = 0x%x\n", + mainlink_levels, safe_to_exit_level); - audio->engine_on = enable; + msm_dp_write_link(audio, REG_DP_MAINLINK_LEVELS, mainlink_levels); } -static struct dp_audio_private *dp_audio_get_data(struct platform_device *pdev) +static void msm_dp_audio_enable(struct msm_dp_audio_private *audio, bool enable) { - struct dp_audio *dp_audio; - struct msm_dp *dp_display; - - if (!pdev) { - DRM_ERROR("invalid input\n"); - return ERR_PTR(-ENODEV); - } + u32 audio_ctrl; - dp_display = platform_get_drvdata(pdev); - if (!dp_display) { - DRM_ERROR("invalid input\n"); - return ERR_PTR(-ENODEV); - } + audio_ctrl = msm_dp_read_link(audio, MMSS_DP_AUDIO_CFG); - dp_audio = dp_display->dp_audio; + if (enable) + audio_ctrl |= BIT(0); + else + audio_ctrl &= ~BIT(0); - if (!dp_audio) { - DRM_ERROR("invalid dp_audio data\n"); - return ERR_PTR(-EINVAL); - } + drm_dbg_dp(audio->drm_dev, "dp_audio_cfg = 0x%x\n", audio_ctrl); - return container_of(dp_audio, struct dp_audio_private, dp_audio); + msm_dp_write_link(audio, MMSS_DP_AUDIO_CFG, audio_ctrl); + /* make sure audio engine is disabled */ + wmb(); } -static int dp_audio_hook_plugged_cb(struct device *dev, void *data, - hdmi_codec_plugged_cb fn, - struct device *codec_dev) +static struct msm_dp_audio_private *msm_dp_audio_get_data(struct msm_dp *msm_dp_display) { + struct msm_dp_audio *msm_dp_audio; - struct platform_device *pdev; - struct msm_dp *dp_display; - - pdev = to_platform_device(dev); - if (!pdev) { - pr_err("invalid input\n"); - return -ENODEV; - } - - dp_display = platform_get_drvdata(pdev); - if (!dp_display) { - pr_err("invalid input\n"); - return -ENODEV; - } - - return dp_display_set_plugged_cb(dp_display, fn, codec_dev); -} - -static int dp_audio_get_eld(struct device *dev, - void *data, uint8_t *buf, size_t len) -{ - struct platform_device *pdev; - struct msm_dp *dp_display; - - pdev = to_platform_device(dev); - - if (!pdev) { - DRM_ERROR("invalid input\n"); - return -ENODEV; - } - - dp_display = platform_get_drvdata(pdev); - if (!dp_display) { - DRM_ERROR("invalid input\n"); - return -ENODEV; + msm_dp_audio = msm_dp_display->msm_dp_audio; + if (!msm_dp_audio) { + DRM_ERROR("invalid msm_dp_audio data\n"); + return ERR_PTR(-EINVAL); } - memcpy(buf, dp_display->connector->eld, - min(sizeof(dp_display->connector->eld), len)); - - return 0; + return container_of(msm_dp_audio, struct msm_dp_audio_private, msm_dp_audio); } -int dp_audio_hw_params(struct device *dev, - void *data, - struct hdmi_codec_daifmt *daifmt, - struct hdmi_codec_params *params) +int msm_dp_audio_prepare(struct drm_bridge *bridge, + struct drm_connector *connector, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params) { int rc = 0; - struct dp_audio_private *audio; - struct platform_device *pdev; - struct msm_dp *dp_display; + struct msm_dp_audio_private *audio; + struct msm_dp *msm_dp_display; - pdev = to_platform_device(dev); - dp_display = platform_get_drvdata(pdev); + msm_dp_display = to_dp_bridge(bridge)->msm_dp_display; /* * there could be cases where sound card can be opened even @@ -526,12 +284,12 @@ int dp_audio_hw_params(struct device *dev, * such cases check for connection status and bail out if not * connected. */ - if (!dp_display->power_on) { + if (!msm_dp_display->power_on) { rc = -EINVAL; goto end; } - audio = dp_audio_get_data(pdev); + audio = msm_dp_audio_get_data(msm_dp_display); if (IS_ERR(audio)) { rc = PTR_ERR(audio); goto end; @@ -539,26 +297,25 @@ int dp_audio_hw_params(struct device *dev, audio->channels = params->channels; - dp_audio_setup_sdp(audio); - dp_audio_setup_acr(audio); - dp_audio_safe_to_exit_level(audio); - dp_audio_enable(audio, true); - dp_display_signal_audio_start(dp_display); - dp_display->audio_enabled = true; + msm_dp_audio_setup_sdp(audio); + msm_dp_audio_setup_acr(audio); + msm_dp_audio_safe_to_exit_level(audio); + msm_dp_audio_enable(audio, true); + msm_dp_display_signal_audio_start(msm_dp_display); + msm_dp_display->audio_enabled = true; end: return rc; } -static void dp_audio_shutdown(struct device *dev, void *data) +void msm_dp_audio_shutdown(struct drm_bridge *bridge, + struct drm_connector *connecter) { - struct dp_audio_private *audio; - struct platform_device *pdev; - struct msm_dp *dp_display; + struct msm_dp_audio_private *audio; + struct msm_dp *msm_dp_display; - pdev = to_platform_device(dev); - dp_display = platform_get_drvdata(pdev); - audio = dp_audio_get_data(pdev); + msm_dp_display = to_dp_bridge(bridge)->msm_dp_display; + audio = msm_dp_audio_get_data(msm_dp_display); if (IS_ERR(audio)) { DRM_ERROR("failed to get audio data\n"); return; @@ -572,52 +329,22 @@ static void dp_audio_shutdown(struct device *dev, void *data) * connected. is_connected cannot be used here as its set * to false earlier than this call */ - if (!dp_display->audio_enabled) + if (!msm_dp_display->audio_enabled) return; - dp_audio_enable(audio, false); + msm_dp_audio_enable(audio, false); /* signal the dp display to safely shutdown clocks */ - dp_display_signal_audio_complete(dp_display); + msm_dp_display_signal_audio_complete(msm_dp_display); } -static const struct hdmi_codec_ops dp_audio_codec_ops = { - .hw_params = dp_audio_hw_params, - .audio_shutdown = dp_audio_shutdown, - .get_eld = dp_audio_get_eld, - .hook_plugged_cb = dp_audio_hook_plugged_cb, -}; - -static struct hdmi_codec_pdata codec_data = { - .ops = &dp_audio_codec_ops, - .max_i2s_channels = 8, - .i2s = 1, -}; - -int dp_register_audio_driver(struct device *dev, - struct dp_audio *dp_audio) -{ - struct dp_audio_private *audio_priv; - - audio_priv = container_of(dp_audio, - struct dp_audio_private, dp_audio); - - audio_priv->audio_pdev = platform_device_register_data(dev, - HDMI_CODEC_DRV_NAME, - PLATFORM_DEVID_AUTO, - &codec_data, - sizeof(codec_data)); - return PTR_ERR_OR_ZERO(audio_priv->audio_pdev); -} - -struct dp_audio *dp_audio_get(struct platform_device *pdev, - struct dp_panel *panel, - struct dp_catalog *catalog) +struct msm_dp_audio *msm_dp_audio_get(struct platform_device *pdev, + void __iomem *link_base) { int rc = 0; - struct dp_audio_private *audio; - struct dp_audio *dp_audio; + struct msm_dp_audio_private *audio; + struct msm_dp_audio *msm_dp_audio; - if (!pdev || !panel || !catalog) { + if (!pdev) { DRM_ERROR("invalid input\n"); rc = -EINVAL; goto error; @@ -630,26 +357,23 @@ struct dp_audio *dp_audio_get(struct platform_device *pdev, } audio->pdev = pdev; - audio->panel = panel; - audio->catalog = catalog; - - dp_audio = &audio->dp_audio; + audio->link_base = link_base; - dp_catalog_audio_init(catalog); + msm_dp_audio = &audio->msm_dp_audio; - return dp_audio; + return msm_dp_audio; error: return ERR_PTR(rc); } -void dp_audio_put(struct dp_audio *dp_audio) +void msm_dp_audio_put(struct msm_dp_audio *msm_dp_audio) { - struct dp_audio_private *audio; + struct msm_dp_audio_private *audio; - if (!dp_audio) + if (!msm_dp_audio) return; - audio = container_of(dp_audio, struct dp_audio_private, dp_audio); + audio = container_of(msm_dp_audio, struct msm_dp_audio_private, msm_dp_audio); devm_kfree(&audio->pdev->dev, audio); } |