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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_BIOS_H__
25 #define __NOUVEAU_BIOS_H__
26 
27 #include "nvreg.h"
28 #include "nouveau_i2c.h"
29 
30 #define DCB_MAX_NUM_ENTRIES 16
31 #define DCB_MAX_NUM_I2C_ENTRIES 16
32 #define DCB_MAX_NUM_GPIO_ENTRIES 32
33 #define DCB_MAX_NUM_CONNECTOR_ENTRIES 16
34 
35 #define DCB_LOC_ON_CHIP 0
36 
37 #define ROM16(x) le16_to_cpu(*(u16 *)&(x))
38 #define ROM32(x) le32_to_cpu(*(u32 *)&(x))
39 #define ROM48(x) ({ u8 *p = &(x); (u64)ROM16(p[4]) << 32 | ROM32(p[0]); })
40 #define ROM64(x) le64_to_cpu(*(u64 *)&(x))
41 #define ROMPTR(d,x) ({            \
42 	struct drm_nouveau_private *dev_priv = (d)->dev_private; \
43 	ROM16(x) ? &dev_priv->vbios.data[ROM16(x)] : NULL; \
44 })
45 
46 struct bit_entry {
47 	uint8_t  id;
48 	uint8_t  version;
49 	uint16_t length;
50 	uint16_t offset;
51 	uint8_t *data;
52 };
53 
54 int bit_table(struct drm_device *, u8 id, struct bit_entry *);
55 
56 enum dcb_gpio_tag {
57 	DCB_GPIO_PANEL_POWER = 0x01,
58 	DCB_GPIO_TVDAC0 = 0x0c,
59 	DCB_GPIO_TVDAC1 = 0x2d,
60 	DCB_GPIO_PWM_FAN = 0x09,
61 	DCB_GPIO_FAN_SENSE = 0x3d,
62 	DCB_GPIO_UNUSED = 0xff
63 };
64 
65 enum dcb_connector_type {
66 	DCB_CONNECTOR_VGA = 0x00,
67 	DCB_CONNECTOR_TV_0 = 0x10,
68 	DCB_CONNECTOR_TV_1 = 0x11,
69 	DCB_CONNECTOR_TV_3 = 0x13,
70 	DCB_CONNECTOR_DVI_I = 0x30,
71 	DCB_CONNECTOR_DVI_D = 0x31,
72 	DCB_CONNECTOR_DMS59_0 = 0x38,
73 	DCB_CONNECTOR_DMS59_1 = 0x39,
74 	DCB_CONNECTOR_LVDS = 0x40,
75 	DCB_CONNECTOR_LVDS_SPWG = 0x41,
76 	DCB_CONNECTOR_DP = 0x46,
77 	DCB_CONNECTOR_eDP = 0x47,
78 	DCB_CONNECTOR_HDMI_0 = 0x60,
79 	DCB_CONNECTOR_HDMI_1 = 0x61,
80 	DCB_CONNECTOR_DMS59_DP0 = 0x64,
81 	DCB_CONNECTOR_DMS59_DP1 = 0x65,
82 	DCB_CONNECTOR_NONE = 0xff
83 };
84 
85 enum dcb_type {
86 	OUTPUT_ANALOG = 0,
87 	OUTPUT_TV = 1,
88 	OUTPUT_TMDS = 2,
89 	OUTPUT_LVDS = 3,
90 	OUTPUT_DP = 6,
91 	OUTPUT_EOL = 14, /* DCB 4.0+, appears to be end-of-list */
92 	OUTPUT_UNUSED = 15,
93 	OUTPUT_ANY = -1
94 };
95 
96 struct dcb_entry {
97 	int index;	/* may not be raw dcb index if merging has happened */
98 	enum dcb_type type;
99 	uint8_t i2c_index;
100 	uint8_t heads;
101 	uint8_t connector;
102 	uint8_t bus;
103 	uint8_t location;
104 	uint8_t or;
105 	bool duallink_possible;
106 	union {
107 		struct sor_conf {
108 			int link;
109 		} sorconf;
110 		struct {
111 			int maxfreq;
112 		} crtconf;
113 		struct {
114 			struct sor_conf sor;
115 			bool use_straps_for_mode;
116 			bool use_acpi_for_edid;
117 			bool use_power_scripts;
118 		} lvdsconf;
119 		struct {
120 			bool has_component_output;
121 		} tvconf;
122 		struct {
123 			struct sor_conf sor;
124 			int link_nr;
125 			int link_bw;
126 		} dpconf;
127 		struct {
128 			struct sor_conf sor;
129 			int slave_addr;
130 		} tmdsconf;
131 	};
132 	bool i2c_upper_default;
133 };
134 
135 struct dcb_table {
136 	uint8_t version;
137 	int entries;
138 	struct dcb_entry entry[DCB_MAX_NUM_ENTRIES];
139 };
140 
141 enum nouveau_or {
142 	OUTPUT_A = (1 << 0),
143 	OUTPUT_B = (1 << 1),
144 	OUTPUT_C = (1 << 2)
145 };
146 
147 enum LVDS_script {
148 	/* Order *does* matter here */
149 	LVDS_INIT = 1,
150 	LVDS_RESET,
151 	LVDS_BACKLIGHT_ON,
152 	LVDS_BACKLIGHT_OFF,
153 	LVDS_PANEL_ON,
154 	LVDS_PANEL_OFF
155 };
156 
157 /* these match types in pll limits table version 0x40,
158  * nouveau uses them on all chipsets internally where a
159  * specific pll needs to be referenced, but the exact
160  * register isn't known.
161  */
162 enum pll_types {
163 	PLL_CORE   = 0x01,
164 	PLL_SHADER = 0x02,
165 	PLL_UNK03  = 0x03,
166 	PLL_MEMORY = 0x04,
167 	PLL_VDEC   = 0x05,
168 	PLL_UNK40  = 0x40,
169 	PLL_UNK41  = 0x41,
170 	PLL_UNK42  = 0x42,
171 	PLL_VPLL0  = 0x80,
172 	PLL_VPLL1  = 0x81,
173 	PLL_MAX    = 0xff
174 };
175 
176 struct pll_lims {
177 	u32 reg;
178 
179 	struct {
180 		int minfreq;
181 		int maxfreq;
182 		int min_inputfreq;
183 		int max_inputfreq;
184 
185 		uint8_t min_m;
186 		uint8_t max_m;
187 		uint8_t min_n;
188 		uint8_t max_n;
189 	} vco1, vco2;
190 
191 	uint8_t max_log2p;
192 	/*
193 	 * for most pre nv50 cards setting a log2P of 7 (the common max_log2p
194 	 * value) is no different to 6 (at least for vplls) so allowing the MNP
195 	 * calc to use 7 causes the generated clock to be out by a factor of 2.
196 	 * however, max_log2p cannot be fixed-up during parsing as the
197 	 * unmodified max_log2p value is still needed for setting mplls, hence
198 	 * an additional max_usable_log2p member
199 	 */
200 	uint8_t max_usable_log2p;
201 	uint8_t log2p_bias;
202 
203 	uint8_t min_p;
204 	uint8_t max_p;
205 
206 	int refclk;
207 };
208 
209 struct nvbios {
210 	struct drm_device *dev;
211 	enum {
212 		NVBIOS_BMP,
213 		NVBIOS_BIT
214 	} type;
215 	uint16_t offset;
216 	uint32_t length;
217 	uint8_t *data;
218 
219 	uint8_t chip_version;
220 
221 	uint32_t dactestval;
222 	uint32_t tvdactestval;
223 	uint8_t digital_min_front_porch;
224 	bool fp_no_ddc;
225 
226 	spinlock_t lock;
227 
228 	bool execute;
229 
230 	uint8_t major_version;
231 	uint8_t feature_byte;
232 	bool is_mobile;
233 
234 	uint32_t fmaxvco, fminvco;
235 
236 	bool old_style_init;
237 	uint16_t init_script_tbls_ptr;
238 	uint16_t extra_init_script_tbl_ptr;
239 	uint16_t macro_index_tbl_ptr;
240 	uint16_t macro_tbl_ptr;
241 	uint16_t condition_tbl_ptr;
242 	uint16_t io_condition_tbl_ptr;
243 	uint16_t io_flag_condition_tbl_ptr;
244 	uint16_t init_function_tbl_ptr;
245 
246 	uint16_t pll_limit_tbl_ptr;
247 	uint16_t ram_restrict_tbl_ptr;
248 	uint8_t ram_restrict_group_count;
249 
250 	uint16_t some_script_ptr; /* BIT I + 14 */
251 	uint16_t init96_tbl_ptr; /* BIT I + 16 */
252 
253 	struct dcb_table dcb;
254 
255 	struct {
256 		int crtchead;
257 	} state;
258 
259 	struct {
260 		struct dcb_entry *output;
261 		int crtc;
262 		uint16_t script_table_ptr;
263 	} display;
264 
265 	struct {
266 		uint16_t fptablepointer;	/* also used by tmds */
267 		uint16_t fpxlatetableptr;
268 		int xlatwidth;
269 		uint16_t lvdsmanufacturerpointer;
270 		uint16_t fpxlatemanufacturertableptr;
271 		uint16_t mode_ptr;
272 		uint16_t xlated_entry;
273 		bool power_off_for_reset;
274 		bool reset_after_pclk_change;
275 		bool dual_link;
276 		bool link_c_increment;
277 		bool if_is_24bit;
278 		int duallink_transition_clk;
279 		uint8_t strapless_is_24bit;
280 		uint8_t *edid;
281 
282 		/* will need resetting after suspend */
283 		int last_script_invoc;
284 		bool lvds_init_run;
285 	} fp;
286 
287 	struct {
288 		uint16_t output0_script_ptr;
289 		uint16_t output1_script_ptr;
290 	} tmds;
291 
292 	struct {
293 		uint16_t mem_init_tbl_ptr;
294 		uint16_t sdr_seq_tbl_ptr;
295 		uint16_t ddr_seq_tbl_ptr;
296 
297 		struct {
298 			uint8_t crt, tv, panel;
299 		} i2c_indices;
300 
301 		uint16_t lvds_single_a_script_ptr;
302 	} legacy;
303 };
304 
305 void *dcb_table(struct drm_device *);
306 void *dcb_outp(struct drm_device *, u8 idx);
307 int dcb_outp_foreach(struct drm_device *, void *data,
308 		     int (*)(struct drm_device *, void *, int idx, u8 *outp));
309 u8 *dcb_conntab(struct drm_device *);
310 u8 *dcb_conn(struct drm_device *, u8 idx);
311 
312 #endif
313