1 /* $NetBSD: dw_hdmi.h,v 1.8 2021/12/19 11:01:11 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2019 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _DEV_IC_DWHDMI_H 30 #define _DEV_IC_DWHDMI_H 31 32 #include <dev/i2c/i2cvar.h> 33 #include <dev/i2c/ddcreg.h> 34 35 #include <dev/audio/audio_dai.h> 36 37 #include <drm/drm_bridge.h> 38 #include <drm/drm_connector.h> 39 #include <drm/drm_drv.h> 40 #include <drm/drm_modes.h> 41 42 struct dwhdmi_softc; 43 44 struct dwhdmi_connector { 45 struct drm_connector base; 46 struct dwhdmi_softc *sc; 47 48 bool hdmi_monitor; 49 bool monitor_audio; 50 }; 51 52 struct dwhdmi_phy_config { 53 u_int pixel_clock; 54 uint32_t sym; 55 uint32_t term; 56 uint32_t vlev; 57 }; 58 59 struct dwhdmi_mpll_config { 60 u_int pixel_clock; 61 uint32_t cpce; 62 uint32_t gmp; 63 uint32_t curr; 64 }; 65 66 struct dwhdmi_softc { 67 device_t sc_dev; 68 bus_space_tag_t sc_bst; 69 bus_space_handle_t sc_bsh; 70 u_int sc_reg_width; 71 u_int sc_flags; 72 #define DWHDMI_USE_INTERNAL_PHY __BIT(0) 73 u_int sc_scl_hcnt; 74 u_int sc_scl_lcnt; 75 76 u_int sc_phytype; 77 u_int sc_version; 78 79 i2c_tag_t sc_ic; 80 struct i2c_controller sc_ic_builtin; 81 82 struct audio_dai_device sc_dai; 83 uint8_t sc_swvol; 84 85 struct dwhdmi_connector sc_connector; 86 struct drm_bridge sc_bridge; 87 88 struct drm_display_mode sc_curmode; 89 90 const struct dwhdmi_mpll_config *sc_mpll_config; 91 const struct dwhdmi_phy_config *sc_phy_config; 92 93 enum drm_connector_status (*sc_detect)(struct dwhdmi_softc *, bool); 94 void (*sc_enable)(struct dwhdmi_softc *); 95 void (*sc_disable)(struct dwhdmi_softc *); 96 void (*sc_mode_set)(struct dwhdmi_softc *, 97 const struct drm_display_mode *, 98 const struct drm_display_mode *); 99 }; 100 101 #define to_dwhdmi_connector(x) container_of(x, struct dwhdmi_connector, base) 102 103 int dwhdmi_attach(struct dwhdmi_softc *); 104 int dwhdmi_bind(struct dwhdmi_softc *, struct drm_encoder *); 105 106 uint8_t dwhdmi_read(struct dwhdmi_softc *, bus_size_t); 107 void dwhdmi_write(struct dwhdmi_softc *, bus_size_t, uint8_t); 108 109 enum drm_connector_status dwhdmi_phy_detect(struct dwhdmi_softc *, bool); 110 void dwhdmi_phy_enable(struct dwhdmi_softc *); 111 void dwhdmi_phy_disable(struct dwhdmi_softc *); 112 void dwhdmi_phy_mode_set(struct dwhdmi_softc *, 113 const struct drm_display_mode *, 114 const struct drm_display_mode *); 115 116 #endif /* !_DEV_IC_DWHDMI_H */ 117