/*- * Copyright (c) 2015 Michal Meloun * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tegra_dc_if.h" #include "tegra_drm_if.h" #define WR4(_sc, _r, _v) bus_write_4((_sc)->mem_res, 4 * (_r), (_v)) #define RD4(_sc, _r) bus_read_4((_sc)->mem_res, 4 * (_r)) /* HDA stream format verb. */ #define AC_FMT_CHAN_GET(x) (((x) >> 0) & 0xf) #define AC_FMT_CHAN_BITS_GET(x) (((x) >> 4) & 0x7) #define AC_FMT_DIV_GET(x) (((x) >> 8) & 0x7) #define AC_FMT_MUL_GET(x) (((x) >> 11) & 0x7) #define AC_FMT_BASE_44K (1 << 14) #define AC_FMT_TYPE_NON_PCM (1 << 15) #define HDMI_REKEY_DEFAULT 56 #define HDMI_ELD_BUFFER_SIZE 96 #define HDMI_DC_CLOCK_MULTIPIER 2 struct audio_reg { uint32_t audio_clk; bus_size_t acr_reg; bus_size_t nval_reg; bus_size_t aval_reg; }; static const struct audio_reg audio_regs[] = { { .audio_clk = 32000, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_0320, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320, }, { .audio_clk = 44100, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_0441, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441, }, { .audio_clk = 88200, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_0882, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882, }, { .audio_clk = 176400, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_1764, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764, }, { .audio_clk = 48000, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_0480, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480, }, { .audio_clk = 96000, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_0960, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960, }, { .audio_clk = 192000, .acr_reg = HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW, .nval_reg = HDMI_NV_PDISP_SOR_AUDIO_NVAL_1920, .aval_reg = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920, }, }; struct tmds_config { uint32_t pclk; uint32_t pll0; uint32_t pll1; uint32_t drive_c; uint32_t pe_c; uint32_t peak_c; uint32_t pad_ctls; }; static const struct tmds_config tegra124_tmds_config[] = { { /* 480p/576p / 25.2MHz/27MHz */ .pclk = 27000000, .pll0 = 0x01003010, .pll1 = 0x00301B00, .drive_c = 0x1F1F1F1F, .pe_c = 0x00000000, .peak_c = 0x03030303, .pad_ctls = 0x800034BB, }, { /* 720p/1080i / 74.25MHz */ .pclk = 74250000, .pll0 = 0x01003110, .pll1 = 0x00301500, .drive_c = 0x2C2C2C2C, .pe_c = 0x00000000, .peak_c = 0x07070707, .pad_ctls = 0x800034BB, }, { /* 1080p / 148.5MHz */ .pclk = 148500000, .pll0 = 0x01003310, .pll1 = 0x00301500, .drive_c = 0x33333333, .pe_c = 0x00000000, .peak_c = 0x0C0C0C0C, .pad_ctls = 0x800034BB, }, { /* 2216p / 297MHz */ .pclk = UINT_MAX, .pll0 = 0x01003F10, .pll1 = 0x00300F00, .drive_c = 0x37373737, .pe_c = 0x00000000, .peak_c = 0x17171717, .pad_ctls = 0x800036BB, }, }; struct hdmi_softc { device_t dev; struct resource *mem_res; struct resource *irq_res; void *irq_ih; clk_t clk_parent; clk_t clk_hdmi; hwreset_t hwreset_hdmi; regulator_t supply_hdmi; regulator_t supply_pll; regulator_t supply_vdd; uint64_t pclk; boolean_t hdmi_mode; int audio_src_type; int audio_freq; int audio_chans; struct tegra_drm *drm; struct tegra_drm_encoder output; const struct tmds_config *tmds_config; int n_tmds_configs; }; static struct ofw_compat_data compat_data[] = { {"nvidia,tegra124-hdmi", 1}, {NULL, 0}, }; /* These functions have been copied from newer version of drm_edid.c */ /* ELD Header Block */ #define DRM_ELD_HEADER_BLOCK_SIZE 4 #define DRM_ELD_BASELINE_ELD_LEN 2 /* in dwords! */ static int drm_eld_size(const uint8_t *eld) { return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; } static int drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame, struct drm_display_mode *mode) { int rv; if (!frame || !mode) return -EINVAL; rv = hdmi_avi_infoframe_init(frame); if (rv < 0) return rv; if (mode->flags & DRM_MODE_FLAG_DBLCLK) frame->pixel_repeat = 1; frame->video_code = drm_match_cea_mode(mode); frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE; #ifdef FREEBSD_NOTYET /* * Populate picture aspect ratio from either * user input (if specified) or from the CEA mode list. */ if (mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_4_3 || mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_16_9) frame->picture_aspect = mode->picture_aspect_ratio; else if (frame->video_code > 0) frame->picture_aspect = drm_get_cea_aspect_ratio( frame->video_code); #endif frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE; frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN; return 0; } /* --------------------------------------------------------------------- */ static int hdmi_setup_clock(struct tegra_drm_encoder *output, clk_t clk, uint64_t pclk) { struct hdmi_softc *sc; uint64_t freq; int rv; sc = device_get_softc(output->dev); /* Disable consumers clock for while. */ rv = clk_disable(sc->clk_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot disable 'hdmi' clock\n"); return (rv); } rv = clk_disable(clk); if (rv != 0) { device_printf(sc->dev, "Cannot disable display clock\n"); return (rv); } /* Set frequency for Display Controller PLL. */ freq = HDMI_DC_CLOCK_MULTIPIER * pclk; rv = clk_set_freq(sc->clk_parent, freq, 0); if (rv != 0) { device_printf(output->dev, "Cannot set display pixel frequency\n"); return (rv); } /* Reparent display controller */ rv = clk_set_parent_by_clk(clk, sc->clk_parent); if (rv != 0) { device_printf(output->dev, "Cannot set parent clock\n"); return (rv); } rv = clk_set_freq(clk, freq, 0); if (rv != 0) { device_printf(output->dev, "Cannot set display controller frequency\n"); return (rv); } rv = clk_set_freq(sc->clk_hdmi, pclk, 0); if (rv != 0) { device_printf(output->dev, "Cannot set display controller frequency\n"); return (rv); } /* And reenable consumers clock. */ rv = clk_enable(clk); if (rv != 0) { device_printf(sc->dev, "Cannot enable display clock\n"); return (rv); } rv = clk_enable(sc->clk_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot enable 'hdmi' clock\n"); return (rv); } rv = clk_get_freq(clk, &freq); if (rv != 0) { device_printf(output->dev, "Cannot get display controller frequency\n"); return (rv); } DRM_DEBUG_KMS("DC frequency: %llu\n", freq); return (0); } /* ------------------------------------------------------------------- * * Infoframes. * */ static void avi_setup_infoframe(struct hdmi_softc *sc, struct drm_display_mode *mode) { struct hdmi_avi_infoframe frame; uint8_t buf[17], *hdr, *pb; ssize_t rv; rv = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); if (rv < 0) { device_printf(sc->dev, "Cannot setup AVI infoframe: %zd\n", rv); return; } rv = hdmi_avi_infoframe_pack(&frame, buf, sizeof(buf)); if (rv < 0) { device_printf(sc->dev, "Cannot pack AVI infoframe: %zd\n", rv); return; } hdr = buf + 0; pb = buf + 3; WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER, (hdr[2] << 16) | (hdr[1] << 8) | (hdr[0] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW, (pb[3] << 24) |(pb[2] << 16) | (pb[1] << 8) | (pb[0] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH, (pb[6] << 16) | (pb[5] << 8) | (pb[4] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW, (pb[10] << 24) |(pb[9] << 16) | (pb[8] << 8) | (pb[7] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH, (pb[13] << 16) | (pb[12] << 8) | (pb[11] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL, AVI_INFOFRAME_CTRL_ENABLE); } static void audio_setup_infoframe(struct hdmi_softc *sc) { struct hdmi_audio_infoframe frame; uint8_t buf[14], *hdr, *pb; ssize_t rv; rv = hdmi_audio_infoframe_init(&frame); frame.channels = sc->audio_chans; rv = hdmi_audio_infoframe_pack(&frame, buf, sizeof(buf)); if (rv < 0) { device_printf(sc->dev, "Cannot pack audio infoframe\n"); return; } hdr = buf + 0; pb = buf + 3; WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER, (hdr[2] << 16) | (hdr[1] << 8) | (hdr[0] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW, (pb[3] << 24) |(pb[2] << 16) | (pb[1] << 8) | (pb[0] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH, (pb[5] << 8) | (pb[4] << 0)); WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL, AUDIO_INFOFRAME_CTRL_ENABLE); } /* ------------------------------------------------------------------- * * Audio * */ static void init_hda_eld(struct hdmi_softc *sc) { size_t size; int i ; uint32_t val; size = drm_eld_size(sc->output.connector.eld); for (i = 0; i < HDMI_ELD_BUFFER_SIZE; i++) { val = i << 8; if (i < size) val |= sc->output.connector.eld[i]; WR4(sc, HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR, val); } WR4(sc,HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE, SOR_AUDIO_HDA_PRESENSE_VALID | SOR_AUDIO_HDA_PRESENSE_PRESENT); } static int get_audio_regs(int freq, bus_size_t *acr_reg, bus_size_t *nval_reg, bus_size_t *aval_reg) { int i; const struct audio_reg *reg; for (i = 0; i < nitems(audio_regs) ; i++) { reg = audio_regs + i; if (reg->audio_clk == freq) { if (acr_reg != NULL) *acr_reg = reg->acr_reg; if (nval_reg != NULL) *nval_reg = reg->nval_reg; if (aval_reg != NULL) *aval_reg = reg->aval_reg; return (0); } } return (ERANGE); } #define FR_BITS 16 #define TO_FFP(x) (((int64_t)(x)) << FR_BITS) #define TO_INT(x) ((int)((x) >> FR_BITS)) static int get_hda_cts_n(uint32_t audio_freq_hz, uint32_t pixclk_freq_hz, uint32_t *best_cts, uint32_t *best_n, uint32_t *best_a) { int min_n; int max_n; int ideal_n; int n; int cts; int aval; int64_t err_f; int64_t min_err_f; int64_t cts_f; int64_t aval_f; int64_t half_f; /* constant 0.5 */ bool better_n; /* * All floats are in fixed I48.16 format. * * Ideal ACR interval is 1000 hz (1 ms); * acceptable is 300 hz .. 1500 hz */ min_n = 128 * audio_freq_hz / 1500; max_n = 128 * audio_freq_hz / 300; ideal_n = 128 * audio_freq_hz / 1000; min_err_f = TO_FFP(100); half_f = TO_FFP(1) / 2; *best_n = 0; *best_cts = 0; *best_a = 0; for (n = min_n; n <= max_n; n++) { cts_f = TO_FFP(pixclk_freq_hz); cts_f *= n; cts_f /= 128 * audio_freq_hz; cts = TO_INT(cts_f + half_f); /* round */ err_f = cts_f - TO_FFP(cts); if (err_f < 0) err_f = -err_f; aval_f = TO_FFP(24000000); aval_f *= n; aval_f /= 128 * audio_freq_hz; aval = TO_INT(aval_f); /* truncate */ better_n = abs(n - ideal_n) < abs((int)(*best_n) - ideal_n); if (TO_FFP(aval) == aval_f && (err_f < min_err_f || (err_f == min_err_f && better_n))) { min_err_f = err_f; *best_n = (uint32_t)n; *best_cts = (uint32_t)cts; *best_a = (uint32_t)aval; if (err_f == 0 && n == ideal_n) break; } } return (0); } #undef FR_BITS #undef TO_FFP #undef TO_INT static int audio_setup(struct hdmi_softc *sc) { uint32_t val; uint32_t audio_n; uint32_t audio_cts; uint32_t audio_aval; uint64_t hdmi_freq; bus_size_t aval_reg; int rv; if (!sc->hdmi_mode) return (ENOTSUP); rv = get_audio_regs(sc->audio_freq, NULL, NULL, &aval_reg); if (rv != 0) { device_printf(sc->dev, "Unsupported audio frequency.\n"); return (rv); } rv = clk_get_freq(sc->clk_hdmi, &hdmi_freq); if (rv != 0) { device_printf(sc->dev, "Cannot get hdmi frequency: %d\n", rv); return (rv); } rv = get_hda_cts_n(sc->audio_freq, hdmi_freq, &audio_cts, &audio_n, &audio_aval); if (rv != 0) { device_printf(sc->dev, "Cannot compute audio coefs: %d\n", rv); return (rv); } /* Audio infoframe. */ audio_setup_infoframe(sc); /* Setup audio source */ WR4(sc, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0, SOR_AUDIO_CNTRL0_SOURCE_SELECT(sc->audio_src_type) | SOR_AUDIO_CNTRL0_INJECT_NULLSMPL); val = RD4(sc, HDMI_NV_PDISP_SOR_AUDIO_SPARE0); val |= SOR_AUDIO_SPARE0_HBR_ENABLE; WR4(sc, HDMI_NV_PDISP_SOR_AUDIO_SPARE0, val); WR4(sc, HDMI_NV_PDISP_HDMI_ACR_CTRL, 0); WR4(sc, HDMI_NV_PDISP_AUDIO_N, AUDIO_N_RESETF | AUDIO_N_GENERATE_ALTERNATE | AUDIO_N_VALUE(audio_n - 1)); WR4(sc, HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH, ACR_SUBPACK_N(audio_n) | ACR_ENABLE); WR4(sc, HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW, ACR_SUBPACK_CTS(audio_cts)); WR4(sc, HDMI_NV_PDISP_HDMI_SPARE, SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1)); val = RD4(sc, HDMI_NV_PDISP_AUDIO_N); val &= ~AUDIO_N_RESETF; WR4(sc, HDMI_NV_PDISP_AUDIO_N, val); WR4(sc, aval_reg, audio_aval); return (0); } static void audio_disable(struct hdmi_softc *sc) { uint32_t val; /* Disable audio */ val = RD4(sc, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); val &= ~GENERIC_CTRL_AUDIO; WR4(sc, HDMI_NV_PDISP_HDMI_GENERIC_CTRL, val); /* Disable audio infoframes */ val = RD4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); val &= ~AUDIO_INFOFRAME_CTRL_ENABLE; WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL, val); } static void audio_enable(struct hdmi_softc *sc) { uint32_t val; if (!sc->hdmi_mode) audio_disable(sc); /* Enable audio infoframes */ val = RD4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL); val |= AUDIO_INFOFRAME_CTRL_ENABLE; WR4(sc, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL, val); /* Enable audio */ val = RD4(sc, HDMI_NV_PDISP_HDMI_GENERIC_CTRL); val |= GENERIC_CTRL_AUDIO; WR4(sc, HDMI_NV_PDISP_HDMI_GENERIC_CTRL, val); } /* ------------------------------------------------------------------- * * HDMI. * */ /* Process format change notification from HDA */ static void hda_intr(struct hdmi_softc *sc) { uint32_t val; int rv; if (!sc->hdmi_mode) return; val = RD4(sc, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0); if ((val & (1 << 30)) == 0) { audio_disable(sc); return; } /* XXX Move this to any header */ /* Keep in sync with HDA */ sc->audio_freq = val & 0x00FFFFFF; sc->audio_chans = (val >> 24) & 0x0f; DRM_DEBUG_KMS("%d channel(s) at %dHz\n", sc->audio_chans, sc->audio_freq); rv = audio_setup(sc); if (rv != 0) { audio_disable(sc); return; } audio_enable(sc); } static void tmds_init(struct hdmi_softc *sc, const struct tmds_config *tmds) { WR4(sc, HDMI_NV_PDISP_SOR_PLL0, tmds->pll0); WR4(sc, HDMI_NV_PDISP_SOR_PLL1, tmds->pll1); WR4(sc, HDMI_NV_PDISP_PE_CURRENT, tmds->pe_c); WR4(sc, HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT, tmds->drive_c); WR4(sc, HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT, tmds->peak_c); WR4(sc, HDMI_NV_PDISP_SOR_PAD_CTLS0, tmds->pad_ctls); } static int hdmi_sor_start(struct hdmi_softc *sc, struct drm_display_mode *mode) { int i; uint32_t val; /* Enable TMDS macro */ val = RD4(sc, HDMI_NV_PDISP_SOR_PLL0); val &= ~SOR_PLL0_PWR; val &= ~SOR_PLL0_VCOPD; val &= ~SOR_PLL0_PULLDOWN; WR4(sc, HDMI_NV_PDISP_SOR_PLL0, val); DELAY(10); val = RD4(sc, HDMI_NV_PDISP_SOR_PLL0); val &= ~SOR_PLL0_PDBG; WR4(sc, HDMI_NV_PDISP_SOR_PLL0, val); WR4(sc, HDMI_NV_PDISP_SOR_PWR, SOR_PWR_SETTING_NEW); WR4(sc, HDMI_NV_PDISP_SOR_PWR, 0); /* Wait until SOR is ready */ for (i = 1000; i > 0; i--) { val = RD4(sc, HDMI_NV_PDISP_SOR_PWR); if ((val & SOR_PWR_SETTING_NEW) == 0) break; DELAY(10); } if (i <= 0) { device_printf(sc->dev, "Timeouted while enabling SOR power.\n"); return (ETIMEDOUT); } val = SOR_STATE2_ASY_OWNER(ASY_OWNER_HEAD0) | SOR_STATE2_ASY_SUBOWNER(SUBOWNER_BOTH) | SOR_STATE2_ASY_CRCMODE(ASY_CRCMODE_COMPLETE) | SOR_STATE2_ASY_PROTOCOL(ASY_PROTOCOL_SINGLE_TMDS_A); if (mode->flags & DRM_MODE_FLAG_NHSYNC) val |= SOR_STATE2_ASY_HSYNCPOL_NEG; if (mode->flags & DRM_MODE_FLAG_NVSYNC) val |= SOR_STATE2_ASY_VSYNCPOL_NEG; WR4(sc, HDMI_NV_PDISP_SOR_STATE2, val); WR4(sc, HDMI_NV_PDISP_SOR_STATE1, SOR_STATE1_ASY_ORMODE_NORMAL | SOR_STATE1_ASY_HEAD_OPMODE(ASY_HEAD_OPMODE_AWAKE)); WR4(sc, HDMI_NV_PDISP_SOR_STATE0, 0); WR4(sc, HDMI_NV_PDISP_SOR_STATE0, SOR_STATE0_UPDATE); val = RD4(sc, HDMI_NV_PDISP_SOR_STATE1); val |= SOR_STATE1_ATTACHED; WR4(sc, HDMI_NV_PDISP_SOR_STATE1, val); WR4(sc, HDMI_NV_PDISP_SOR_STATE0, 0); return 0; } static int hdmi_disable(struct hdmi_softc *sc) { struct tegra_crtc *crtc; device_t dc; uint32_t val; dc = NULL; if (sc->output.encoder.crtc != NULL) { crtc = container_of(sc->output.encoder.crtc, struct tegra_crtc, drm_crtc); dc = crtc->dev; } if (dc != NULL) { TEGRA_DC_HDMI_ENABLE(dc, false); TEGRA_DC_DISPLAY_ENABLE(dc, false); } audio_disable(sc); val = RD4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL); val &= ~AVI_INFOFRAME_CTRL_ENABLE; WR4(sc, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL, val); /* Disable interrupts */ WR4(sc, HDMI_NV_PDISP_INT_ENABLE, 0); WR4(sc, HDMI_NV_PDISP_INT_MASK, 0); return (0); } static int hdmi_enable(struct hdmi_softc *sc) { uint64_t freq; struct drm_display_mode *mode; struct tegra_crtc *crtc; uint32_t val, h_sync_width, h_back_porch, h_front_porch, h_pulse_start; uint32_t h_max_ac_packet, div8_2; device_t dc; int i, rv; mode = &sc->output.encoder.crtc->mode; crtc = container_of(sc->output.encoder.crtc, struct tegra_crtc, drm_crtc); dc = crtc->dev; /* Compute all timings first. */ sc->pclk = mode->clock * 1000; h_sync_width = mode->hsync_end - mode->hsync_start; h_back_porch = mode->htotal - mode->hsync_end; h_front_porch = mode->hsync_start - mode->hdisplay; h_pulse_start = 1 + h_sync_width + h_back_porch - 10; h_max_ac_packet = (h_sync_width + h_back_porch + h_front_porch - HDMI_REKEY_DEFAULT - 18) / 32; /* Check if HDMI device is connected and detected. */ if (sc->output.connector.edid_blob_ptr == NULL) { sc->hdmi_mode = false; } else { sc->hdmi_mode = drm_detect_hdmi_monitor( (struct edid *)sc->output.connector.edid_blob_ptr->data); } /* Get exact HDMI pixel frequency. */ rv = clk_get_freq(sc->clk_hdmi, &freq); if (rv != 0) { device_printf(sc->dev, "Cannot get 'hdmi' clock frequency\n"); return (rv); } DRM_DEBUG_KMS("HDMI frequency: %llu Hz\n", freq); /* Wakeup SOR power */ val = RD4(sc, HDMI_NV_PDISP_SOR_PLL0); val &= ~SOR_PLL0_PDBG; WR4(sc, HDMI_NV_PDISP_SOR_PLL0, val); DELAY(10); val = RD4(sc, HDMI_NV_PDISP_SOR_PLL0); val &= ~SOR_PLL0_PWR; WR4(sc, HDMI_NV_PDISP_SOR_PLL0, val); /* Setup timings */ TEGRA_DC_SETUP_TIMING(dc, h_pulse_start); WR4(sc, HDMI_NV_PDISP_HDMI_VSYNC_WINDOW, VSYNC_WINDOW_START(0x200) | VSYNC_WINDOW_END(0x210) | VSYNC_WINDOW_ENABLE); /* Setup video source and adjust video range */ val = 0; if (crtc->nvidia_head != 0) HDMI_SRC_DISPLAYB; if ((mode->hdisplay != 640) || (mode->vdisplay != 480)) val |= ARM_VIDEO_RANGE_LIMITED; WR4(sc, HDMI_NV_PDISP_INPUT_CONTROL, val); /* Program SOR reference clock - it uses 8.2 fractional divisor */ div8_2 = (freq * 4) / 1000000; val = SOR_REFCLK_DIV_INT(div8_2 >> 2) | SOR_REFCLK_DIV_FRAC(div8_2); WR4(sc, HDMI_NV_PDISP_SOR_REFCLK, val); /* Setup audio */ if (sc->hdmi_mode) { rv = audio_setup(sc); if (rv != 0) sc->hdmi_mode = false; } /* Init HDA ELD */ init_hda_eld(sc); val = HDMI_CTRL_REKEY(HDMI_REKEY_DEFAULT); val |= HDMI_CTRL_MAX_AC_PACKET(h_max_ac_packet); if (sc->hdmi_mode) val |= HDMI_CTRL_ENABLE; WR4(sc, HDMI_NV_PDISP_HDMI_CTRL, val); /* Setup TMDS */ for (i = 0; i < sc->n_tmds_configs; i++) { if (sc->pclk <= sc->tmds_config[i].pclk) { tmds_init(sc, sc->tmds_config + i); break; } } /* Program sequencer. */ WR4(sc, HDMI_NV_PDISP_SOR_SEQ_CTL, SOR_SEQ_PU_PC(0) | SOR_SEQ_PU_PC_ALT(0) | SOR_SEQ_PD_PC(8) | SOR_SEQ_PD_PC_ALT(8)); val = SOR_SEQ_INST_WAIT_TIME(1) | SOR_SEQ_INST_WAIT_UNITS(WAIT_UNITS_VSYNC) | SOR_SEQ_INST_HALT | SOR_SEQ_INST_DRIVE_PWM_OUT_LO; WR4(sc, HDMI_NV_PDISP_SOR_SEQ_INST(0), val); WR4(sc, HDMI_NV_PDISP_SOR_SEQ_INST(8), val); val = RD4(sc,HDMI_NV_PDISP_SOR_CSTM); val &= ~SOR_CSTM_LVDS_ENABLE; val &= ~SOR_CSTM_ROTCLK(~0); val |= SOR_CSTM_ROTCLK(2); val &= ~SOR_CSTM_MODE(~0); val |= SOR_CSTM_MODE(CSTM_MODE_TMDS); val |= SOR_CSTM_PLLDIV; WR4(sc, HDMI_NV_PDISP_SOR_CSTM, val); TEGRA_DC_DISPLAY_ENABLE(dc, false); rv = hdmi_sor_start(sc, mode); if (rv != 0) return (rv); TEGRA_DC_HDMI_ENABLE(dc, true); TEGRA_DC_DISPLAY_ENABLE(dc, true); /* Enable HDA codec interrupt */ WR4(sc, HDMI_NV_PDISP_INT_MASK, INT_CODEC_SCRATCH0); WR4(sc, HDMI_NV_PDISP_INT_ENABLE, INT_CODEC_SCRATCH0); if (sc->hdmi_mode) { avi_setup_infoframe(sc, mode); audio_enable(sc); } return (0); } /* ------------------------------------------------------------------- * * DRM Interface. * */ static enum drm_mode_status hdmi_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { struct tegra_drm_encoder *output; struct hdmi_softc *sc; int rv; uint64_t freq; output = container_of(connector, struct tegra_drm_encoder, connector); sc = device_get_softc(output->dev); freq = HDMI_DC_CLOCK_MULTIPIER * mode->clock * 1000; rv = clk_test_freq(sc->clk_parent, freq, 0); DRM_DEBUG_KMS("Test HDMI frequency: %u kHz, rv: %d\n", mode->clock, rv); if (rv != 0) return (MODE_NOCLOCK); return (MODE_OK); } static const struct drm_connector_helper_funcs hdmi_connector_helper_funcs = { .get_modes = tegra_drm_connector_get_modes, .mode_valid = hdmi_connector_mode_valid, .best_encoder = tegra_drm_connector_best_encoder, }; static const struct drm_connector_funcs hdmi_connector_funcs = { .dpms = drm_helper_connector_dpms, .detect = tegra_drm_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = drm_connector_cleanup, }; static const struct drm_encoder_funcs hdmi_encoder_funcs = { .destroy = drm_encoder_cleanup, }; static void hdmi_encoder_dpms(struct drm_encoder *encoder, int mode) { /* Empty function. */ } static bool hdmi_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted) { return (true); } static void hdmi_encoder_prepare(struct drm_encoder *encoder) { /* Empty function. */ } static void hdmi_encoder_commit(struct drm_encoder *encoder) { /* Empty function. */ } static void hdmi_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted) { struct tegra_drm_encoder *output; struct hdmi_softc *sc; int rv; output = container_of(encoder, struct tegra_drm_encoder, encoder); sc = device_get_softc(output->dev); rv = hdmi_enable(sc); if (rv != 0) device_printf(sc->dev, "Cannot enable HDMI port\n"); } static void hdmi_encoder_disable(struct drm_encoder *encoder) { struct tegra_drm_encoder *output; struct hdmi_softc *sc; int rv; output = container_of(encoder, struct tegra_drm_encoder, encoder); sc = device_get_softc(output->dev); if (sc == NULL) return; rv = hdmi_disable(sc); if (rv != 0) device_printf(sc->dev, "Cannot disable HDMI port\n"); } static const struct drm_encoder_helper_funcs hdmi_encoder_helper_funcs = { .dpms = hdmi_encoder_dpms, .mode_fixup = hdmi_encoder_mode_fixup, .prepare = hdmi_encoder_prepare, .commit = hdmi_encoder_commit, .mode_set = hdmi_encoder_mode_set, .disable = hdmi_encoder_disable, }; /* ------------------------------------------------------------------- * * Bus and infrastructure. * */ static int hdmi_init_client(device_t dev, device_t host1x, struct tegra_drm *drm) { struct hdmi_softc *sc; phandle_t node; int rv; sc = device_get_softc(dev); node = ofw_bus_get_node(sc->dev); sc->drm = drm; sc->output.setup_clock = &hdmi_setup_clock; rv = tegra_drm_encoder_attach(&sc->output, node); if (rv != 0) { device_printf(dev, "Cannot attach output connector\n"); return(ENXIO); } /* Connect this encoder + connector to DRM. */ drm_connector_init(&drm->drm_dev, &sc->output.connector, &hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA); drm_connector_helper_add(&sc->output.connector, &hdmi_connector_helper_funcs); sc->output.connector.dpms = DRM_MODE_DPMS_OFF; drm_encoder_init(&drm->drm_dev, &sc->output.encoder, &hdmi_encoder_funcs, DRM_MODE_ENCODER_TMDS); drm_encoder_helper_add(&sc->output.encoder, &hdmi_encoder_helper_funcs); drm_mode_connector_attach_encoder(&sc->output.connector, &sc->output.encoder); rv = tegra_drm_encoder_init(&sc->output, drm); if (rv < 0) { device_printf(sc->dev, "Unable to init HDMI output\n"); return (rv); } sc->output.encoder.possible_crtcs = 0x3; return (0); } static int hdmi_exit_client(device_t dev, device_t host1x, struct tegra_drm *drm) { struct hdmi_softc *sc; sc = device_get_softc(dev); tegra_drm_encoder_exit(&sc->output, drm); return (0); } static int get_fdt_resources(struct hdmi_softc *sc, phandle_t node) { int rv; rv = regulator_get_by_ofw_property(sc->dev, 0, "hdmi-supply", &sc->supply_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot get 'hdmi' regulator\n"); return (ENXIO); } rv = regulator_get_by_ofw_property(sc->dev,0, "pll-supply", &sc->supply_pll); if (rv != 0) { device_printf(sc->dev, "Cannot get 'pll' regulator\n"); return (ENXIO); } rv = regulator_get_by_ofw_property(sc->dev, 0, "vdd-supply", &sc->supply_vdd); if (rv != 0) { device_printf(sc->dev, "Cannot get 'vdd' regulator\n"); return (ENXIO); } rv = hwreset_get_by_ofw_name(sc->dev, 0, "hdmi", &sc->hwreset_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot get 'hdmi' reset\n"); return (ENXIO); } rv = clk_get_by_ofw_name(sc->dev, 0, "parent", &sc->clk_parent); if (rv != 0) { device_printf(sc->dev, "Cannot get 'parent' clock\n"); return (ENXIO); } rv = clk_get_by_ofw_name(sc->dev, 0, "hdmi", &sc->clk_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot get 'hdmi' clock\n"); return (ENXIO); } return (0); } static int enable_fdt_resources(struct hdmi_softc *sc) { int rv; rv = clk_set_parent_by_clk(sc->clk_hdmi, sc->clk_parent); if (rv != 0) { device_printf(sc->dev, "Cannot set parent for 'hdmi' clock\n"); return (rv); } /* 594 MHz is arbitrarily selected value */ rv = clk_set_freq(sc->clk_parent, 594000000, 0); if (rv != 0) { device_printf(sc->dev, "Cannot set frequency for 'hdmi' parent clock\n"); return (rv); } rv = clk_set_freq(sc->clk_hdmi, 594000000 / 4, 0); if (rv != 0) { device_printf(sc->dev, "Cannot set frequency for 'hdmi' parent clock\n"); return (rv); } rv = regulator_enable(sc->supply_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot enable 'hdmi' regulator\n"); return (rv); } rv = regulator_enable(sc->supply_pll); if (rv != 0) { device_printf(sc->dev, "Cannot enable 'pll' regulator\n"); return (rv); } rv = regulator_enable(sc->supply_vdd); if (rv != 0) { device_printf(sc->dev, "Cannot enable 'vdd' regulator\n"); return (rv); } rv = clk_enable(sc->clk_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot enable 'hdmi' clock\n"); return (rv); } rv = hwreset_deassert(sc->hwreset_hdmi); if (rv != 0) { device_printf(sc->dev, "Cannot unreset 'hdmi' reset\n"); return (rv); } return (0); } static void hdmi_intr(void *arg) { struct hdmi_softc *sc; uint32_t status; sc = arg; /* Confirm interrupt */ status = RD4(sc, HDMI_NV_PDISP_INT_STATUS); WR4(sc, HDMI_NV_PDISP_INT_STATUS, status); /* process audio verb from HDA */ if (status & INT_CODEC_SCRATCH0) hda_intr(sc); } static int hdmi_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) return (ENXIO); device_set_desc(dev, "Tegra HDMI"); return (BUS_PROBE_DEFAULT); } static int hdmi_attach(device_t dev) { struct hdmi_softc *sc; phandle_t node; int rid, rv; sc = device_get_softc(dev); sc->dev = dev; sc->output.dev = sc->dev; node = ofw_bus_get_node(sc->dev); sc->audio_src_type = SOURCE_SELECT_AUTO; sc->audio_freq = 44100; sc->audio_chans = 2; sc->hdmi_mode = false; sc->tmds_config = tegra124_tmds_config; sc->n_tmds_configs = nitems(tegra124_tmds_config); rid = 0; sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (sc->mem_res == NULL) { device_printf(dev, "Cannot allocate memory resources\n"); goto fail; } rid = 0; sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); if (sc->irq_res == NULL) { device_printf(dev, "Cannot allocate IRQ resources\n"); goto fail; } rv = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE, NULL, hdmi_intr, sc, &sc->irq_ih); if (rv != 0) { device_printf(dev, "WARNING: unable to register interrupt handler\n"); goto fail; } rv = get_fdt_resources(sc, node); if (rv != 0) { device_printf(dev, "Cannot parse FDT resources\n"); goto fail; } rv = enable_fdt_resources(sc); if (rv != 0) { device_printf(dev, "Cannot enable FDT resources\n"); goto fail; } rv = TEGRA_DRM_REGISTER_CLIENT(device_get_parent(sc->dev), sc->dev); if (rv != 0) { device_printf(dev, "Cannot register DRM device\n"); goto fail; } bus_attach_children(dev); return (0); fail: TEGRA_DRM_DEREGISTER_CLIENT(device_get_parent(sc->dev), sc->dev); if (sc->irq_ih != NULL) bus_teardown_intr(dev, sc->irq_res, sc->irq_ih); if (sc->clk_parent != NULL) clk_release(sc->clk_parent); if (sc->clk_hdmi != NULL) clk_release(sc->clk_hdmi); if (sc->hwreset_hdmi != NULL) hwreset_release(sc->hwreset_hdmi); if (sc->supply_hdmi != NULL) regulator_release(sc->supply_hdmi); if (sc->supply_pll != NULL) regulator_release(sc->supply_pll); if (sc->supply_vdd != NULL) regulator_release(sc->supply_vdd); if (sc->irq_res != NULL) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res); if (sc->mem_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->mem_res); return (ENXIO); } static int hdmi_detach(device_t dev) { struct hdmi_softc *sc; int error; error = bus_generic_detach(dev); if (error != 0) return (error); sc = device_get_softc(dev); TEGRA_DRM_DEREGISTER_CLIENT(device_get_parent(sc->dev), sc->dev); if (sc->irq_ih != NULL) bus_teardown_intr(dev, sc->irq_res, sc->irq_ih); if (sc->clk_parent != NULL) clk_release(sc->clk_parent); if (sc->clk_hdmi != NULL) clk_release(sc->clk_hdmi); if (sc->hwreset_hdmi != NULL) hwreset_release(sc->hwreset_hdmi); if (sc->supply_hdmi != NULL) regulator_release(sc->supply_hdmi); if (sc->supply_pll != NULL) regulator_release(sc->supply_pll); if (sc->supply_vdd != NULL) regulator_release(sc->supply_vdd); if (sc->irq_res != NULL) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res); if (sc->mem_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->mem_res); return (0); } static device_method_t tegra_hdmi_methods[] = { /* Device interface */ DEVMETHOD(device_probe, hdmi_probe), DEVMETHOD(device_attach, hdmi_attach), DEVMETHOD(device_detach, hdmi_detach), /* tegra drm interface */ DEVMETHOD(tegra_drm_init_client, hdmi_init_client), DEVMETHOD(tegra_drm_exit_client, hdmi_exit_client), DEVMETHOD_END }; DEFINE_CLASS_0(tegra_hdmi, tegra_hdmi_driver, tegra_hdmi_methods, sizeof(struct hdmi_softc)); DRIVER_MODULE(tegra_hdmi, host1x, tegra_hdmi_driver, 0, 0);