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      1 /*	$NetBSD: nouveau_bios.h,v 1.5 2021/12/18 23:45:32 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2007-2008 Nouveau Project
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the next
     14  * paragraph) shall be included in all copies or substantial portions of the
     15  * Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     23  * DEALINGS IN THE SOFTWARE.
     24  */
     25 
     26 #ifndef __NOUVEAU_DISPBIOS_H__
     27 #define __NOUVEAU_DISPBIOS_H__
     28 
     29 #define DCB_MAX_NUM_ENTRIES 16
     30 #define DCB_MAX_NUM_I2C_ENTRIES 16
     31 #define DCB_MAX_NUM_GPIO_ENTRIES 32
     32 #define DCB_MAX_NUM_CONNECTOR_ENTRIES 16
     33 
     34 #define DCB_LOC_ON_CHIP 0
     35 
     36 #define ROM16(x) get_unaligned_le16(&(x))
     37 #define ROM32(x) get_unaligned_le32(&(x))
     38 #define ROMPTR(d,x) ({            \
     39 	struct nouveau_drm *drm = nouveau_drm((d)); \
     40 	ROM16(x) ? &drm->vbios.data[ROM16(x)] : NULL; \
     41 })
     42 
     43 struct bit_entry {
     44 	uint8_t  id;
     45 	uint8_t  version;
     46 	uint16_t length;
     47 	uint16_t offset;
     48 	uint8_t *data;
     49 };
     50 
     51 int bit_table(struct drm_device *, u8 id, struct bit_entry *);
     52 
     53 #include <subdev/bios/dcb.h>
     54 #include <subdev/bios/conn.h>
     55 
     56 struct dcb_table {
     57 	uint8_t version;
     58 	int entries;
     59 	struct dcb_output entry[DCB_MAX_NUM_ENTRIES];
     60 };
     61 
     62 enum nouveau_or {
     63 	DCB_OUTPUT_A = (1 << 0),
     64 	DCB_OUTPUT_B = (1 << 1),
     65 	DCB_OUTPUT_C = (1 << 2)
     66 };
     67 
     68 enum LVDS_script {
     69 	/* Order *does* matter here */
     70 	LVDS_INIT = 1,
     71 	LVDS_RESET,
     72 	LVDS_BACKLIGHT_ON,
     73 	LVDS_BACKLIGHT_OFF,
     74 	LVDS_PANEL_ON,
     75 	LVDS_PANEL_OFF
     76 };
     77 
     78 struct nvbios {
     79 	struct drm_device *dev;
     80 	enum {
     81 		NVBIOS_BMP,
     82 		NVBIOS_BIT
     83 	} type;
     84 	uint16_t offset;
     85 	uint32_t length;
     86 	uint8_t *data;
     87 
     88 	uint8_t chip_version;
     89 
     90 	uint32_t dactestval;
     91 	uint32_t tvdactestval;
     92 	uint8_t digital_min_front_porch;
     93 	bool fp_no_ddc;
     94 
     95 	spinlock_t lock;
     96 
     97 	bool execute;
     98 
     99 	uint8_t major_version;
    100 	uint8_t feature_byte;
    101 	bool is_mobile;
    102 
    103 	uint32_t fmaxvco, fminvco;
    104 
    105 	bool old_style_init;
    106 	uint16_t init_script_tbls_ptr;
    107 	uint16_t extra_init_script_tbl_ptr;
    108 
    109 	uint16_t ram_restrict_tbl_ptr;
    110 	uint8_t ram_restrict_group_count;
    111 
    112 	struct dcb_table dcb;
    113 
    114 	struct {
    115 		int crtchead;
    116 	} state;
    117 
    118 	struct {
    119 		uint16_t fptablepointer;	/* also used by tmds */
    120 		uint16_t fpxlatetableptr;
    121 		int xlatwidth;
    122 		uint16_t lvdsmanufacturerpointer;
    123 		uint16_t fpxlatemanufacturertableptr;
    124 		uint16_t mode_ptr;
    125 		uint16_t xlated_entry;
    126 		bool power_off_for_reset;
    127 		bool reset_after_pclk_change;
    128 		bool dual_link;
    129 		bool link_c_increment;
    130 		bool if_is_24bit;
    131 		int duallink_transition_clk;
    132 		uint8_t strapless_is_24bit;
    133 		uint8_t *edid;
    134 
    135 		/* will need resetting after suspend */
    136 		int last_script_invoc;
    137 		bool lvds_init_run;
    138 	} fp;
    139 
    140 	struct {
    141 		uint16_t output0_script_ptr;
    142 		uint16_t output1_script_ptr;
    143 	} tmds;
    144 
    145 	struct {
    146 		uint16_t mem_init_tbl_ptr;
    147 		uint16_t sdr_seq_tbl_ptr;
    148 		uint16_t ddr_seq_tbl_ptr;
    149 
    150 		struct {
    151 			uint8_t crt, tv, panel;
    152 		} i2c_indices;
    153 
    154 		uint16_t lvds_single_a_script_ptr;
    155 	} legacy;
    156 };
    157 
    158 void *olddcb_table(struct drm_device *);
    159 void *olddcb_outp(struct drm_device *, u8 idx);
    160 int olddcb_outp_foreach(struct drm_device *, void *data,
    161 		     int (*)(struct drm_device *, void *, int idx, u8 *outp));
    162 u8 *olddcb_conntab(struct drm_device *);
    163 u8 *olddcb_conn(struct drm_device *, u8 idx);
    164 
    165 int nouveau_bios_init(struct drm_device *);
    166 void nouveau_bios_takedown(struct drm_device *dev);
    167 int nouveau_run_vbios_init(struct drm_device *);
    168 struct dcb_connector_table_entry *
    169 nouveau_bios_connector_entry(struct drm_device *, int index);
    170 bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
    171 uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
    172 int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
    173 					 bool *dl, bool *if_is_24bit);
    174 int run_tmds_table(struct drm_device *, struct dcb_output *,
    175 			  int head, int pxclk);
    176 int call_lvds_script(struct drm_device *, struct dcb_output *, int head,
    177 			    enum LVDS_script, int pxclk);
    178 
    179 #endif
    180