1 /*
2  * Copyright 2007-2008 Nouveau Project
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifndef __NOUVEAU_DISPBIOS_H__
25 #define __NOUVEAU_DISPBIOS_H__
26 
27 #include "nvreg.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) le16_to_cpu(*(u16 *)&(x))
37 #define ROM32(x) le32_to_cpu(*(u32 *)&(x))
38 #define ROM48(x) ({ u8 *p = &(x); (u64)ROM16(p[4]) << 32 | ROM32(p[0]); })
39 #define ROM64(x) le64_to_cpu(*(u64 *)&(x))
40 #define ROMPTR(d,x) ({            \
41 	struct nouveau_drm *drm = nouveau_drm((d)); \
42 	ROM16(x) ? &drm->vbios.data[ROM16(x)] : NULL; \
43 })
44 
45 struct bit_entry {
46 	uint8_t  id;
47 	uint8_t  version;
48 	uint16_t length;
49 	uint16_t offset;
50 	uint8_t *data;
51 };
52 
53 int bit_table(struct drm_device *, u8 id, struct bit_entry *);
54 
55 #include <subdev/bios/dcb.h>
56 #include <subdev/bios/conn.h>
57 
58 struct dcb_table {
59 	uint8_t version;
60 	int entries;
61 	struct dcb_output entry[DCB_MAX_NUM_ENTRIES];
62 };
63 
64 enum nouveau_or {
65 	DCB_OUTPUT_A = (1 << 0),
66 	DCB_OUTPUT_B = (1 << 1),
67 	DCB_OUTPUT_C = (1 << 2)
68 };
69 
70 enum LVDS_script {
71 	/* Order *does* matter here */
72 	LVDS_INIT = 1,
73 	LVDS_RESET,
74 	LVDS_BACKLIGHT_ON,
75 	LVDS_BACKLIGHT_OFF,
76 	LVDS_PANEL_ON,
77 	LVDS_PANEL_OFF
78 };
79 
80 struct nvbios {
81 	struct drm_device *dev;
82 	enum {
83 		NVBIOS_BMP,
84 		NVBIOS_BIT
85 	} type;
86 	uint16_t offset;
87 	uint32_t length;
88 	uint8_t *data;
89 
90 	uint8_t chip_version;
91 
92 	uint32_t dactestval;
93 	uint32_t tvdactestval;
94 	uint8_t digital_min_front_porch;
95 	bool fp_no_ddc;
96 
97 	spinlock_t lock;
98 
99 	bool execute;
100 
101 	uint8_t major_version;
102 	uint8_t feature_byte;
103 	bool is_mobile;
104 
105 	uint32_t fmaxvco, fminvco;
106 
107 	bool old_style_init;
108 	uint16_t init_script_tbls_ptr;
109 	uint16_t extra_init_script_tbl_ptr;
110 	uint16_t macro_index_tbl_ptr;
111 	uint16_t macro_tbl_ptr;
112 	uint16_t condition_tbl_ptr;
113 	uint16_t io_condition_tbl_ptr;
114 	uint16_t io_flag_condition_tbl_ptr;
115 	uint16_t init_function_tbl_ptr;
116 
117 	uint16_t pll_limit_tbl_ptr;
118 	uint16_t ram_restrict_tbl_ptr;
119 	uint8_t ram_restrict_group_count;
120 
121 	uint16_t some_script_ptr; /* BIT I + 14 */
122 	uint16_t init96_tbl_ptr; /* BIT I + 16 */
123 
124 	struct dcb_table dcb;
125 
126 	struct {
127 		int crtchead;
128 	} state;
129 
130 	struct {
131 		uint16_t fptablepointer;	/* also used by tmds */
132 		uint16_t fpxlatetableptr;
133 		int xlatwidth;
134 		uint16_t lvdsmanufacturerpointer;
135 		uint16_t fpxlatemanufacturertableptr;
136 		uint16_t mode_ptr;
137 		uint16_t xlated_entry;
138 		bool power_off_for_reset;
139 		bool reset_after_pclk_change;
140 		bool dual_link;
141 		bool link_c_increment;
142 		bool if_is_24bit;
143 		int duallink_transition_clk;
144 		uint8_t strapless_is_24bit;
145 		uint8_t *edid;
146 
147 		/* will need resetting after suspend */
148 		int last_script_invoc;
149 		bool lvds_init_run;
150 	} fp;
151 
152 	struct {
153 		uint16_t output0_script_ptr;
154 		uint16_t output1_script_ptr;
155 	} tmds;
156 
157 	struct {
158 		uint16_t mem_init_tbl_ptr;
159 		uint16_t sdr_seq_tbl_ptr;
160 		uint16_t ddr_seq_tbl_ptr;
161 
162 		struct {
163 			uint8_t crt, tv, panel;
164 		} i2c_indices;
165 
166 		uint16_t lvds_single_a_script_ptr;
167 	} legacy;
168 };
169 
170 void *olddcb_table(struct drm_device *);
171 void *olddcb_outp(struct drm_device *, u8 idx);
172 int olddcb_outp_foreach(struct drm_device *, void *data,
173 		     int (*)(struct drm_device *, void *, int idx, u8 *outp));
174 u8 *olddcb_conntab(struct drm_device *);
175 u8 *olddcb_conn(struct drm_device *, u8 idx);
176 
177 int nouveau_bios_init(struct drm_device *);
178 void nouveau_bios_takedown(struct drm_device *dev);
179 int nouveau_run_vbios_init(struct drm_device *);
180 struct dcb_connector_table_entry *
181 nouveau_bios_connector_entry(struct drm_device *, int index);
182 bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
183 uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
184 int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
185 					 bool *dl, bool *if_is_24bit);
186 int run_tmds_table(struct drm_device *, struct dcb_output *,
187 			  int head, int pxclk);
188 int call_lvds_script(struct drm_device *, struct dcb_output *, int head,
189 			    enum LVDS_script, int pxclk);
190 
191 #endif
192