diff options
Diffstat (limited to 'drivers/gpu/drm/exynos')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_hdmi.c | 141 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/regs-hdmi.h | 2 |
2 files changed, 42 insertions, 101 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 38eaa63afb31..5ed8b1effe71 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -47,19 +47,6 @@ #define HOTPLUG_DEBOUNCE_MS 1100 -/* AVI header and aspect ratio */ -#define HDMI_AVI_VERSION 0x02 -#define HDMI_AVI_LENGTH 0x0d - -/* AUI header info */ -#define HDMI_AUI_VERSION 0x01 -#define HDMI_AUI_LENGTH 0x0a - -/* AVI active format aspect ratio */ -#define AVI_SAME_AS_PIC_ASPECT_RATIO 0x08 -#define AVI_4_3_CENTER_RATIO 0x09 -#define AVI_16_9_CENTER_RATIO 0x0a - enum hdmi_type { HDMI_TYPE13, HDMI_TYPE14, @@ -131,7 +118,6 @@ struct hdmi_context { bool dvi_mode; struct delayed_work hotplug_work; struct drm_display_mode current_mode; - u8 cea_video_id; const struct hdmi_driver_data *drv_data; void __iomem *regs; @@ -681,6 +667,13 @@ static inline void hdmi_reg_writev(struct hdmi_context *hdata, u32 reg_id, } } +static inline void hdmi_reg_write_buf(struct hdmi_context *hdata, u32 reg_id, + u8 *buf, int size) +{ + for (reg_id = hdmi_map_reg(hdata, reg_id); size; --size, reg_id += 4) + writel(*buf++, hdata->regs + reg_id); +} + static inline void hdmi_reg_writemask(struct hdmi_context *hdata, u32 reg_id, u32 value, u32 mask) { @@ -762,93 +755,50 @@ static int hdmi_clk_set_parents(struct hdmi_context *hdata, bool to_phy) return ret; } -static u8 hdmi_chksum(struct hdmi_context *hdata, - u32 start, u8 len, u32 hdr_sum) -{ - int i; - - /* hdr_sum : header0 + header1 + header2 - * start : start address of packet byte1 - * len : packet bytes - 1 */ - for (i = 0; i < len; ++i) - hdr_sum += 0xff & hdmi_reg_read(hdata, start + i * 4); - - /* return 2's complement of 8 bit hdr_sum */ - return (u8)(~(hdr_sum & 0xff) + 1); -} - -static void hdmi_reg_infoframe(struct hdmi_context *hdata, - union hdmi_infoframe *infoframe) +static void hdmi_reg_infoframes(struct hdmi_context *hdata) { - u32 hdr_sum; - u8 chksum; - u8 ar; + union hdmi_infoframe frm; + u8 buf[25]; + int ret; if (hdata->dvi_mode) { - hdmi_reg_writeb(hdata, HDMI_VSI_CON, - HDMI_VSI_CON_DO_NOT_TRANSMIT); hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_DO_NOT_TRANSMIT); + hdmi_reg_writeb(hdata, HDMI_VSI_CON, + HDMI_VSI_CON_DO_NOT_TRANSMIT); hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN); return; } - switch (infoframe->any.type) { - case HDMI_INFOFRAME_TYPE_AVI: + ret = drm_hdmi_avi_infoframe_from_display_mode(&frm.avi, + &hdata->current_mode); + if (!ret) + ret = hdmi_avi_infoframe_pack(&frm.avi, buf, sizeof(buf)); + if (ret > 0) { hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC); - hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->any.type); - hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1, - infoframe->any.version); - hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->any.length); - hdr_sum = infoframe->any.type + infoframe->any.version + - infoframe->any.length; - - /* Output format zero hardcoded ,RGB YBCR selection */ - hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 | - AVI_ACTIVE_FORMAT_VALID | - AVI_UNDERSCANNED_DISPLAY_VALID); - - /* - * Set the aspect ratio as per the mode, mentioned in - * Table 9 AVI InfoFrame Data Byte 2 of CEA-861-D Standard - */ - ar = hdata->current_mode.picture_aspect_ratio; - switch (ar) { - case HDMI_PICTURE_ASPECT_4_3: - ar |= AVI_4_3_CENTER_RATIO; - break; - case HDMI_PICTURE_ASPECT_16_9: - ar |= AVI_16_9_CENTER_RATIO; - break; - case HDMI_PICTURE_ASPECT_NONE: - default: - ar |= AVI_SAME_AS_PIC_ASPECT_RATIO; - break; - } - hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2), ar); + hdmi_reg_write_buf(hdata, HDMI_AVI_HEADER0, buf, ret); + } else { + DRM_INFO("%s: invalid AVI infoframe (%d)\n", __func__, ret); + } - hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), hdata->cea_video_id); + ret = drm_hdmi_vendor_infoframe_from_display_mode(&frm.vendor.hdmi, + &hdata->current_mode); + if (!ret) + ret = hdmi_vendor_infoframe_pack(&frm.vendor.hdmi, buf, + sizeof(buf)); + if (ret > 0) { + hdmi_reg_writeb(hdata, HDMI_VSI_CON, HDMI_VSI_CON_EVERY_VSYNC); + hdmi_reg_write_buf(hdata, HDMI_VSI_HEADER0, buf, ret); + } - chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1), - infoframe->any.length, hdr_sum); - DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum); - hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum); - break; - case HDMI_INFOFRAME_TYPE_AUDIO: - hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02); - hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->any.type); - hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1, - infoframe->any.version); - hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->any.length); - hdr_sum = infoframe->any.type + infoframe->any.version + - infoframe->any.length; - chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1), - infoframe->any.length, hdr_sum); - DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum); - hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum); - break; - default: - break; + ret = hdmi_audio_infoframe_init(&frm.audio); + if (!ret) { + frm.audio.channels = 2; + ret = hdmi_audio_infoframe_pack(&frm.audio, buf, sizeof(buf)); + } + if (ret > 0) { + hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC); + hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, ret); } } @@ -1127,8 +1077,6 @@ static void hdmi_start(struct hdmi_context *hdata, bool start) static void hdmi_conf_init(struct hdmi_context *hdata) { - union hdmi_infoframe infoframe; - /* disable HPD interrupts from HDMI IP block, use GPIO instead */ hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL | HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG); @@ -1164,15 +1112,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata) hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02); hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04); } else { - infoframe.any.type = HDMI_INFOFRAME_TYPE_AVI; - infoframe.any.version = HDMI_AVI_VERSION; - infoframe.any.length = HDMI_AVI_LENGTH; - hdmi_reg_infoframe(hdata, &infoframe); - - infoframe.any.type = HDMI_INFOFRAME_TYPE_AUDIO; - infoframe.any.version = HDMI_AUI_VERSION; - infoframe.any.length = HDMI_AUI_LENGTH; - hdmi_reg_infoframe(hdata, &infoframe); + hdmi_reg_infoframes(hdata); /* enable AVI packet every vsync, fixes purple line problem */ hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5); @@ -1458,7 +1398,6 @@ static void hdmi_mode_set(struct drm_encoder *encoder, "INTERLACED" : "PROGRESSIVE"); drm_mode_copy(&hdata->current_mode, m); - hdata->cea_video_id = drm_match_cea_mode(mode); } static void hdmi_set_refclk(struct hdmi_context *hdata, bool on) diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h index 169667a22bdc..a0507dc18d9e 100644 --- a/drivers/gpu/drm/exynos/regs-hdmi.h +++ b/drivers/gpu/drm/exynos/regs-hdmi.h @@ -361,9 +361,11 @@ /* AUI bit definition */ #define HDMI_AUI_CON_NO_TRAN (0 << 0) +#define HDMI_AUI_CON_EVERY_VSYNC (1 << 1) /* VSI bit definition */ #define HDMI_VSI_CON_DO_NOT_TRANSMIT (0 << 0) +#define HDMI_VSI_CON_EVERY_VSYNC (1 << 1) /* HDCP related registers */ #define HDMI_HDCP_SHA1(n) HDMI_CORE_BASE(0x7000 + 4 * (n)) |