/*- * Copyright (c) 2015 Oleksandr Tymoshenko * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include /* * HDMI core module */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hdmi_if.h" #define I2C_DDC_ADDR (0x50 << 1) #define I2C_DDC_SEGADDR (0x30 << 1) #define EDID_LENGTH 0x80 #define EXT_TAG 0x00 #define CEA_TAG_ID 0x02 #define CEA_DTD 0x03 #define DTD_BASIC_AUDIO (1 << 6) #define CEA_REV 0x02 #define CEA_DATA_OFF 0x03 #define CEA_DATA_START 4 #define BLOCK_TAG(x) (((x) >> 5) & 0x7) #define BLOCK_TAG_VSDB 3 #define BLOCK_LEN(x) ((x) & 0x1f) #define HDMI_VSDB_MINLEN 5 #define HDMI_OUI "\x03\x0c\x00" #define HDMI_OUI_LEN 3 static void dwc_hdmi_phy_wait_i2c_done(struct dwc_hdmi_softc *sc, int msec) { uint8_t val; val = RD1(sc, HDMI_IH_I2CMPHY_STAT0) & (HDMI_IH_I2CMPHY_STAT0_DONE | HDMI_IH_I2CMPHY_STAT0_ERROR); while (val == 0) { pause("HDMI_PHY", hz/100); msec -= 10; if (msec <= 0) return; val = RD1(sc, HDMI_IH_I2CMPHY_STAT0) & (HDMI_IH_I2CMPHY_STAT0_DONE | HDMI_IH_I2CMPHY_STAT0_ERROR); } } static void dwc_hdmi_phy_i2c_write(struct dwc_hdmi_softc *sc, unsigned short data, unsigned char addr) { /* clear DONE and ERROR flags */ WR1(sc, HDMI_IH_I2CMPHY_STAT0, HDMI_IH_I2CMPHY_STAT0_DONE | HDMI_IH_I2CMPHY_STAT0_ERROR); WR1(sc, HDMI_PHY_I2CM_ADDRESS_ADDR, addr); WR1(sc, HDMI_PHY_I2CM_DATAO_1_ADDR, ((data >> 8) & 0xff)); WR1(sc, HDMI_PHY_I2CM_DATAO_0_ADDR, ((data >> 0) & 0xff)); WR1(sc, HDMI_PHY_I2CM_OPERATION_ADDR, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE); dwc_hdmi_phy_wait_i2c_done(sc, 1000); } static void dwc_hdmi_disable_overflow_interrupts(struct dwc_hdmi_softc *sc) { WR1(sc, HDMI_IH_MUTE_FC_STAT2, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK); WR1(sc, HDMI_FC_MASK2, HDMI_FC_MASK2_LOW_PRI | HDMI_FC_MASK2_HIGH_PRI); } static void dwc_hdmi_av_composer(struct dwc_hdmi_softc *sc) { uint8_t inv_val; int is_dvi; int hblank, vblank, hsync_len, hfp, vfp; /* Set up HDMI_FC_INVIDCONF */ inv_val = ((sc->sc_mode.flags & VID_PVSYNC) ? HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH : HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW); inv_val |= ((sc->sc_mode.flags & VID_PHSYNC) ? HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH : HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW); inv_val |= HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH; inv_val |= ((sc->sc_mode.flags & VID_INTERLACE) ? HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH : HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW); inv_val |= ((sc->sc_mode.flags & VID_INTERLACE) ? HDMI_FC_INVIDCONF_IN_I_P_INTERLACED : HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE); /* TODO: implement HDMI part */ is_dvi = sc->sc_has_audio == 0; inv_val |= (is_dvi ? HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE : HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE); WR1(sc, HDMI_FC_INVIDCONF, inv_val); /* Set up horizontal active pixel region width */ WR1(sc, HDMI_FC_INHACTV1, sc->sc_mode.hdisplay >> 8); WR1(sc, HDMI_FC_INHACTV0, sc->sc_mode.hdisplay); /* Set up vertical blanking pixel region width */ WR1(sc, HDMI_FC_INVACTV1, sc->sc_mode.vdisplay >> 8); WR1(sc, HDMI_FC_INVACTV0, sc->sc_mode.vdisplay); /* Set up horizontal blanking pixel region width */ hblank = sc->sc_mode.htotal - sc->sc_mode.hdisplay; WR1(sc, HDMI_FC_INHBLANK1, hblank >> 8); WR1(sc, HDMI_FC_INHBLANK0, hblank); /* Set up vertical blanking pixel region width */ vblank = sc->sc_mode.vtotal - sc->sc_mode.vdisplay; WR1(sc, HDMI_FC_INVBLANK, vblank); /* Set up HSYNC active edge delay width (in pixel clks) */ hfp = sc->sc_mode.hsync_start - sc->sc_mode.hdisplay; WR1(sc, HDMI_FC_HSYNCINDELAY1, hfp >> 8); WR1(sc, HDMI_FC_HSYNCINDELAY0, hfp); /* Set up VSYNC active edge delay (in pixel clks) */ vfp = sc->sc_mode.vsync_start - sc->sc_mode.vdisplay; WR1(sc, HDMI_FC_VSYNCINDELAY, vfp); hsync_len = (sc->sc_mode.hsync_end - sc->sc_mode.hsync_start); /* Set up HSYNC active pulse width (in pixel clks) */ WR1(sc, HDMI_FC_HSYNCINWIDTH1, hsync_len >> 8); WR1(sc, HDMI_FC_HSYNCINWIDTH0, hsync_len); /* Set up VSYNC active edge delay (in pixel clks) */ WR1(sc, HDMI_FC_VSYNCINWIDTH, (sc->sc_mode.vsync_end - sc->sc_mode.vsync_start)); } static void dwc_hdmi_phy_enable_power(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_PDZ_MASK; reg |= (enable << HDMI_PHY_CONF0_PDZ_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static void dwc_hdmi_phy_enable_tmds(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_ENTMDS_MASK; reg |= (enable << HDMI_PHY_CONF0_ENTMDS_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static void dwc_hdmi_phy_gen2_pddq(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_GEN2_PDDQ_MASK; reg |= (enable << HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static void dwc_hdmi_phy_gen2_txpwron(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_GEN2_TXPWRON_MASK; reg |= (enable << HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static void dwc_hdmi_phy_sel_data_en_pol(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_SELDATAENPOL_MASK; reg |= (enable << HDMI_PHY_CONF0_SELDATAENPOL_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static void dwc_hdmi_phy_sel_interface_control(struct dwc_hdmi_softc *sc, uint8_t enable) { uint8_t reg; reg = RD1(sc, HDMI_PHY_CONF0); reg &= ~HDMI_PHY_CONF0_SELDIPIF_MASK; reg |= (enable << HDMI_PHY_CONF0_SELDIPIF_OFFSET); WR1(sc, HDMI_PHY_CONF0, reg); } static inline void dwc_hdmi_phy_test_clear(struct dwc_hdmi_softc *sc, unsigned char bit) { uint8_t val; val = RD1(sc, HDMI_PHY_TST0); val &= ~HDMI_PHY_TST0_TSTCLR_MASK; val |= (bit << HDMI_PHY_TST0_TSTCLR_OFFSET) & HDMI_PHY_TST0_TSTCLR_MASK; WR1(sc, HDMI_PHY_TST0, val); } static void dwc_hdmi_clear_overflow(struct dwc_hdmi_softc *sc) { int count; uint8_t val; /* TMDS software reset */ WR1(sc, HDMI_MC_SWRSTZ, (uint8_t)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ); val = RD1(sc, HDMI_FC_INVIDCONF); for (count = 0 ; count < 4 ; count++) WR1(sc, HDMI_FC_INVIDCONF, val); } static int dwc_hdmi_phy_configure(struct dwc_hdmi_softc *sc) { uint8_t val; uint8_t msec; WR1(sc, HDMI_MC_FLOWCTRL, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS); /* gen2 tx power off */ dwc_hdmi_phy_gen2_txpwron(sc, 0); /* gen2 pddq */ dwc_hdmi_phy_gen2_pddq(sc, 1); /* PHY reset */ WR1(sc, HDMI_MC_PHYRSTZ, HDMI_MC_PHYRSTZ_DEASSERT); WR1(sc, HDMI_MC_PHYRSTZ, HDMI_MC_PHYRSTZ_ASSERT); WR1(sc, HDMI_MC_HEACPHY_RST, HDMI_MC_HEACPHY_RST_ASSERT); dwc_hdmi_phy_test_clear(sc, 1); WR1(sc, HDMI_PHY_I2CM_SLAVE_ADDR, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2); dwc_hdmi_phy_test_clear(sc, 0); /* * Following initialization are for 8bit per color case */ /* * PLL/MPLL config, see section 24.7.22 in TRM * config, see section 24.7.22 */ if (sc->sc_mode.dot_clock*1000 <= 45250000) { dwc_hdmi_phy_i2c_write(sc, CPCE_CTRL_45_25, HDMI_PHY_I2C_CPCE_CTRL); dwc_hdmi_phy_i2c_write(sc, GMPCTRL_45_25, HDMI_PHY_I2C_GMPCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 92500000) { dwc_hdmi_phy_i2c_write(sc, CPCE_CTRL_92_50, HDMI_PHY_I2C_CPCE_CTRL); dwc_hdmi_phy_i2c_write(sc, GMPCTRL_92_50, HDMI_PHY_I2C_GMPCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 185000000) { dwc_hdmi_phy_i2c_write(sc, CPCE_CTRL_185, HDMI_PHY_I2C_CPCE_CTRL); dwc_hdmi_phy_i2c_write(sc, GMPCTRL_185, HDMI_PHY_I2C_GMPCTRL); } else { dwc_hdmi_phy_i2c_write(sc, CPCE_CTRL_370, HDMI_PHY_I2C_CPCE_CTRL); dwc_hdmi_phy_i2c_write(sc, GMPCTRL_370, HDMI_PHY_I2C_GMPCTRL); } /* * Values described in TRM section 34.9.2 PLL/MPLL Generic * Configuration Settings. Table 34-23. */ if (sc->sc_mode.dot_clock*1000 <= 54000000) { dwc_hdmi_phy_i2c_write(sc, 0x091c, HDMI_PHY_I2C_CURRCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 58400000) { dwc_hdmi_phy_i2c_write(sc, 0x091c, HDMI_PHY_I2C_CURRCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 72000000) { dwc_hdmi_phy_i2c_write(sc, 0x06dc, HDMI_PHY_I2C_CURRCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 74250000) { dwc_hdmi_phy_i2c_write(sc, 0x06dc, HDMI_PHY_I2C_CURRCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 118800000) { dwc_hdmi_phy_i2c_write(sc, 0x091c, HDMI_PHY_I2C_CURRCTRL); } else if (sc->sc_mode.dot_clock*1000 <= 216000000) { dwc_hdmi_phy_i2c_write(sc, 0x06dc, HDMI_PHY_I2C_CURRCTRL); } else { panic("Unsupported mode\n"); } dwc_hdmi_phy_i2c_write(sc, 0x0000, HDMI_PHY_I2C_PLLPHBYCTRL); dwc_hdmi_phy_i2c_write(sc, MSM_CTRL_FB_CLK, HDMI_PHY_I2C_MSM_CTRL); /* RESISTANCE TERM 133 Ohm */ dwc_hdmi_phy_i2c_write(sc, TXTERM_133, HDMI_PHY_I2C_TXTERM); /* REMOVE CLK TERM */ dwc_hdmi_phy_i2c_write(sc, CKCALCTRL_OVERRIDE, HDMI_PHY_I2C_CKCALCTRL); if (sc->sc_mode.dot_clock*1000 > 148500000) { dwc_hdmi_phy_i2c_write(sc,CKSYMTXCTRL_OVERRIDE | CKSYMTXCTRL_TX_SYMON | CKSYMTXCTRL_TX_TRBON | CKSYMTXCTRL_TX_CK_SYMON, HDMI_PHY_I2C_CKSYMTXCTRL); dwc_hdmi_phy_i2c_write(sc, VLEVCTRL_TX_LVL(9) | VLEVCTRL_CK_LVL(9), HDMI_PHY_I2C_VLEVCTRL); } else { dwc_hdmi_phy_i2c_write(sc,CKSYMTXCTRL_OVERRIDE | CKSYMTXCTRL_TX_SYMON | CKSYMTXCTRL_TX_TRAON | CKSYMTXCTRL_TX_CK_SYMON, HDMI_PHY_I2C_CKSYMTXCTRL); dwc_hdmi_phy_i2c_write(sc, VLEVCTRL_TX_LVL(13) | VLEVCTRL_CK_LVL(13), HDMI_PHY_I2C_VLEVCTRL); } dwc_hdmi_phy_enable_power(sc, 1); /* toggle TMDS enable */ dwc_hdmi_phy_enable_tmds(sc, 0); dwc_hdmi_phy_enable_tmds(sc, 1); /* gen2 tx power on */ dwc_hdmi_phy_gen2_txpwron(sc, 1); dwc_hdmi_phy_gen2_pddq(sc, 0); /*Wait for PHY PLL lock */ msec = 4; val = RD1(sc, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK; while (val == 0) { DELAY(1000); if (msec-- == 0) { device_printf(sc->sc_dev, "PHY PLL not locked\n"); return (-1); } val = RD1(sc, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK; } return true; } static void dwc_hdmi_phy_init(struct dwc_hdmi_softc *sc) { int i; /* HDMI Phy spec says to do the phy initialization sequence twice */ for (i = 0 ; i < 2 ; i++) { dwc_hdmi_phy_sel_data_en_pol(sc, 1); dwc_hdmi_phy_sel_interface_control(sc, 0); dwc_hdmi_phy_enable_tmds(sc, 0); dwc_hdmi_phy_enable_power(sc, 0); /* Enable CSC */ dwc_hdmi_phy_configure(sc); } } static void dwc_hdmi_enable_video_path(struct dwc_hdmi_softc *sc) { uint8_t clkdis; /* * Control period timing * Values are minimal according to HDMI spec 1.4a */ WR1(sc, HDMI_FC_CTRLDUR, 12); WR1(sc, HDMI_FC_EXCTRLDUR, 32); WR1(sc, HDMI_FC_EXCTRLSPAC, 1); /* * Bits to fill data lines not used to transmit preamble * for channels 0, 1, and 2 respectively */ WR1(sc, HDMI_FC_CH0PREAM, 0x0B); WR1(sc, HDMI_FC_CH1PREAM, 0x16); WR1(sc, HDMI_FC_CH2PREAM, 0x21); /* Save CEC clock */ clkdis = RD1(sc, HDMI_MC_CLKDIS) & HDMI_MC_CLKDIS_CECCLK_DISABLE; clkdis |= ~HDMI_MC_CLKDIS_CECCLK_DISABLE; /* Enable pixel clock and tmds data path */ clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE; WR1(sc, HDMI_MC_CLKDIS, clkdis); clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE; WR1(sc, HDMI_MC_CLKDIS, clkdis); } static void dwc_hdmi_configure_audio(struct dwc_hdmi_softc *sc) { unsigned int n; uint8_t val; if (sc->sc_has_audio == 0) return; /* The following values are for 48 kHz */ switch (sc->sc_mode.dot_clock) { case 25170: n = 6864; break; case 27020: n = 6144; break; case 74170: n = 11648; break; case 148350: n = 5824; break; default: n = 6144; break; } WR1(sc, HDMI_AUD_N1, (n >> 0) & 0xff); WR1(sc, HDMI_AUD_N2, (n >> 8) & 0xff); WR1(sc, HDMI_AUD_N3, (n >> 16) & 0xff); val = RD1(sc, HDMI_AUD_CTS3); val &= ~(HDMI_AUD_CTS3_N_SHIFT_MASK | HDMI_AUD_CTS3_CTS_MANUAL); WR1(sc, HDMI_AUD_CTS3, val); val = RD1(sc, HDMI_AUD_CONF0); val &= ~HDMI_AUD_CONF0_INTERFACE_MASK; val |= HDMI_AUD_CONF0_INTERFACE_IIS; val &= ~HDMI_AUD_CONF0_I2SINEN_MASK; val |= HDMI_AUD_CONF0_I2SINEN_CH2; WR1(sc, HDMI_AUD_CONF0, val); val = RD1(sc, HDMI_AUD_CONF1); val &= ~HDMI_AUD_CONF1_DATAMODE_MASK; val |= HDMI_AUD_CONF1_DATAMODE_IIS; val &= ~HDMI_AUD_CONF1_DATWIDTH_MASK; val |= HDMI_AUD_CONF1_DATWIDTH_16BIT; WR1(sc, HDMI_AUD_CONF1, val); WR1(sc, HDMI_AUD_INPUTCLKFS, HDMI_AUD_INPUTCLKFS_64); WR1(sc, HDMI_FC_AUDICONF0, 1 << 4); /* CC=1 */ WR1(sc, HDMI_FC_AUDICONF1, 0); WR1(sc, HDMI_FC_AUDICONF2, 0); /* CA=0 */ WR1(sc, HDMI_FC_AUDICONF3, 0); WR1(sc, HDMI_FC_AUDSV, 0xee); /* channels valid */ /* Enable audio clock */ val = RD1(sc, HDMI_MC_CLKDIS); val &= ~HDMI_MC_CLKDIS_AUDCLK_DISABLE; WR1(sc, HDMI_MC_CLKDIS, val); } static void dwc_hdmi_video_packetize(struct dwc_hdmi_softc *sc) { unsigned int color_depth = 0; unsigned int remap_size = HDMI_VP_REMAP_YCC422_16BIT; unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP; uint8_t val; output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS; color_depth = 4; /* set the packetizer registers */ val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) & HDMI_VP_PR_CD_COLOR_DEPTH_MASK); WR1(sc, HDMI_VP_PR_CD, val); val = RD1(sc, HDMI_VP_STUFF); val &= ~HDMI_VP_STUFF_PR_STUFFING_MASK; val |= HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE; WR1(sc, HDMI_VP_STUFF, val); val = RD1(sc, HDMI_VP_CONF); val &= ~(HDMI_VP_CONF_PR_EN_MASK | HDMI_VP_CONF_BYPASS_SELECT_MASK); val |= HDMI_VP_CONF_PR_EN_DISABLE | HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER; WR1(sc, HDMI_VP_CONF, val); val = RD1(sc, HDMI_VP_STUFF); val &= ~HDMI_VP_STUFF_IDEFAULT_PHASE_MASK; val |= 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET; WR1(sc, HDMI_VP_STUFF, val); WR1(sc, HDMI_VP_REMAP, remap_size); if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) { val = RD1(sc, HDMI_VP_CONF); val &= ~(HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK | HDMI_VP_CONF_YCC422_EN_MASK); val |= HDMI_VP_CONF_BYPASS_EN_DISABLE | HDMI_VP_CONF_PP_EN_ENABLE | HDMI_VP_CONF_YCC422_EN_DISABLE; WR1(sc, HDMI_VP_CONF, val); } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) { val = RD1(sc, HDMI_VP_CONF); val &= ~(HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK | HDMI_VP_CONF_YCC422_EN_MASK); val |= HDMI_VP_CONF_BYPASS_EN_DISABLE | HDMI_VP_CONF_PP_EN_DISABLE | HDMI_VP_CONF_YCC422_EN_ENABLE; WR1(sc, HDMI_VP_CONF, val); } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) { val = RD1(sc, HDMI_VP_CONF); val &= ~(HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK | HDMI_VP_CONF_YCC422_EN_MASK); val |= HDMI_VP_CONF_BYPASS_EN_ENABLE | HDMI_VP_CONF_PP_EN_DISABLE | HDMI_VP_CONF_YCC422_EN_DISABLE; WR1(sc, HDMI_VP_CONF, val); } else { return; } val = RD1(sc, HDMI_VP_STUFF); val &= ~(HDMI_VP_STUFF_PP_STUFFING_MASK | HDMI_VP_STUFF_YCC422_STUFFING_MASK); val |= HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE | HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE; WR1(sc, HDMI_VP_STUFF, val); val = RD1(sc, HDMI_VP_CONF); val &= ~HDMI_VP_CONF_OUTPUT_SELECTOR_MASK; val |= output_select; WR1(sc, HDMI_VP_CONF, val); } static void dwc_hdmi_video_sample(struct dwc_hdmi_softc *sc) { int color_format; uint8_t val; color_format = 0x01; val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE | ((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) & HDMI_TX_INVID0_VIDEO_MAPPING_MASK); WR1(sc, HDMI_TX_INVID0, val); /* Enable TX stuffing: When DE is inactive, fix the output data to 0 */ val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE | HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE | HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE; WR1(sc, HDMI_TX_INSTUFFING, val); WR1(sc, HDMI_TX_GYDATA0, 0x0); WR1(sc, HDMI_TX_GYDATA1, 0x0); WR1(sc, HDMI_TX_RCRDATA0, 0x0); WR1(sc, HDMI_TX_RCRDATA1, 0x0); WR1(sc, HDMI_TX_BCBDATA0, 0x0); WR1(sc, HDMI_TX_BCBDATA1, 0x0); } static void dwc_hdmi_tx_hdcp_config(struct dwc_hdmi_softc *sc) { uint8_t de, val; de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH; /* Disable RX detect */ val = RD1(sc, HDMI_A_HDCPCFG0); val &= ~HDMI_A_HDCPCFG0_RXDETECT_MASK; val |= HDMI_A_HDCPCFG0_RXDETECT_DISABLE; WR1(sc, HDMI_A_HDCPCFG0, val); /* Set polarity */ val = RD1(sc, HDMI_A_VIDPOLCFG); val &= ~HDMI_A_VIDPOLCFG_DATAENPOL_MASK; val |= de; WR1(sc, HDMI_A_VIDPOLCFG, val); /* Disable encryption */ val = RD1(sc, HDMI_A_HDCPCFG1); val &= ~HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK; val |= HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE; WR1(sc, HDMI_A_HDCPCFG1, val); } static int dwc_hdmi_set_mode(struct dwc_hdmi_softc *sc) { /* XXX */ sc->sc_has_audio = 1; dwc_hdmi_disable_overflow_interrupts(sc); dwc_hdmi_av_composer(sc); dwc_hdmi_phy_init(sc); dwc_hdmi_enable_video_path(sc); dwc_hdmi_configure_audio(sc); /* TODO: dwc_hdmi_config_avi(sc); */ dwc_hdmi_video_packetize(sc); /* TODO: dwc_hdmi_video_csc(sc); */ dwc_hdmi_video_sample(sc); dwc_hdmi_tx_hdcp_config(sc); dwc_hdmi_clear_overflow(sc); return (0); } static int hdmi_edid_read(struct dwc_hdmi_softc *sc, int block, uint8_t **edid, uint32_t *edid_len) { device_t i2c_dev; int result; uint8_t addr = block & 1 ? EDID_LENGTH : 0; uint8_t segment = block >> 1; /* * Some devices do not support E-DDC so attempt * writing segment address only if it's neccessary */ unsigned char xfers = segment ? 3 : 2; struct iic_msg msg[] = { { I2C_DDC_SEGADDR, IIC_M_WR, 1, &segment }, { I2C_DDC_ADDR, IIC_M_WR, 1, &addr }, { I2C_DDC_ADDR, IIC_M_RD, EDID_LENGTH, sc->sc_edid } }; *edid = NULL; *edid_len = 0; i2c_dev = NULL; if (sc->sc_get_i2c_dev != NULL) i2c_dev = sc->sc_get_i2c_dev(sc->sc_dev); if (!i2c_dev) { device_printf(sc->sc_dev, "no DDC device found\n"); return (ENXIO); } if (bootverbose) device_printf(sc->sc_dev, "reading EDID from %s, block %d, addr %02x\n", device_get_nameunit(i2c_dev), block, I2C_DDC_ADDR/2); result = iicbus_request_bus(i2c_dev, sc->sc_dev, IIC_INTRWAIT); if (result) { device_printf(sc->sc_dev, "failed to request i2c bus: %d\n", result); return (result); } result = iicbus_transfer(i2c_dev, &msg[3 - xfers], xfers); iicbus_release_bus(i2c_dev, sc->sc_dev); if (result) { device_printf(sc->sc_dev, "i2c transfer failed: %d\n", result); return (result); } else { *edid_len = sc->sc_edid_len; *edid = sc->sc_edid; } return (result); } static void dwc_hdmi_detect_cable(void *arg) { struct dwc_hdmi_softc *sc; uint32_t stat; sc = arg; stat = RD1(sc, HDMI_IH_PHY_STAT0); if ((stat & HDMI_IH_PHY_STAT0_HPD) != 0) { EVENTHANDLER_INVOKE(hdmi_event, sc->sc_dev, HDMI_EVENT_CONNECTED); } /* Finished with the interrupt hook */ config_intrhook_disestablish(&sc->sc_mode_hook); } int dwc_hdmi_init(device_t dev) { struct dwc_hdmi_softc *sc; int err; sc = device_get_softc(dev); err = 0; sc->sc_edid = malloc(EDID_LENGTH, M_DEVBUF, M_WAITOK | M_ZERO); sc->sc_edid_len = EDID_LENGTH; device_printf(sc->sc_dev, "HDMI controller %02x:%02x:%02x:%02x\n", RD1(sc, HDMI_DESIGN_ID), RD1(sc, HDMI_REVISION_ID), RD1(sc, HDMI_PRODUCT_ID0), RD1(sc, HDMI_PRODUCT_ID1)); WR1(sc, HDMI_PHY_POL0, HDMI_PHY_POL0_HPD); WR1(sc, HDMI_IH_PHY_STAT0, HDMI_IH_PHY_STAT0_HPD); sc->sc_mode_hook.ich_func = dwc_hdmi_detect_cable; sc->sc_mode_hook.ich_arg = sc; if (config_intrhook_establish(&sc->sc_mode_hook) != 0) { err = ENOMEM; goto out; } out: if (err != 0) { free(sc->sc_edid, M_DEVBUF); sc->sc_edid = NULL; } return (err); } static int dwc_hdmi_detect_hdmi_vsdb(uint8_t *edid) { int off, p, btag, blen; if (edid[EXT_TAG] != CEA_TAG_ID) return (0); off = edid[CEA_DATA_OFF]; /* CEA data block collection starts at byte 4 */ if (off <= CEA_DATA_START) return (0); /* Parse the CEA data blocks */ for (p = CEA_DATA_START; p < off;) { btag = BLOCK_TAG(edid[p]); blen = BLOCK_LEN(edid[p]); /* Make sure the length is sane */ if (p + blen + 1 > off) break; /* Look for a VSDB with the HDMI 24-bit IEEE registration ID */ if (btag == BLOCK_TAG_VSDB && blen >= HDMI_VSDB_MINLEN && memcmp(&edid[p + 1], HDMI_OUI, HDMI_OUI_LEN) == 0) return (1); /* Next data block */ p += (1 + blen); } /* Not found */ return (0); } static void dwc_hdmi_detect_hdmi(struct dwc_hdmi_softc *sc) { uint8_t *edid; uint32_t edid_len; int block; sc->sc_has_audio = 0; /* Scan through extension blocks, looking for a CEA-861 block */ for (block = 1; block <= sc->sc_edid_info.edid_ext_block_count; block++) { if (hdmi_edid_read(sc, block, &edid, &edid_len) != 0) return; if (dwc_hdmi_detect_hdmi_vsdb(edid) != 0) { if (bootverbose) device_printf(sc->sc_dev, "enabling audio support\n"); sc->sc_has_audio = (edid[CEA_DTD] & DTD_BASIC_AUDIO) != 0; return; } } } int dwc_hdmi_get_edid(device_t dev, uint8_t **edid, uint32_t *edid_len) { struct dwc_hdmi_softc *sc; int error; sc = device_get_softc(dev); memset(&sc->sc_edid_info, 0, sizeof(sc->sc_edid_info)); error = hdmi_edid_read(sc, 0, edid, edid_len); if (error != 0) return (error); edid_parse(*edid, &sc->sc_edid_info); return (0); } int dwc_hdmi_set_videomode(device_t dev, const struct videomode *mode) { struct dwc_hdmi_softc *sc; sc = device_get_softc(dev); memcpy(&sc->sc_mode, mode, sizeof(*mode)); dwc_hdmi_detect_hdmi(sc); dwc_hdmi_set_mode(sc); return (0); }