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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright © 2015 Broadcom
4 */
5
6#ifndef __SOC_RASPBERRY_FIRMWARE_H__
7#define __SOC_RASPBERRY_FIRMWARE_H__
8
9#include <linux/types.h>
10#include <linux/of_device.h>
11
12struct rpi_firmware;
13
14enum rpi_firmware_property_status {
15 RPI_FIRMWARE_STATUS_REQUEST = 0,
16 RPI_FIRMWARE_STATUS_SUCCESS = 0x80000000,
17 RPI_FIRMWARE_STATUS_ERROR = 0x80000001,
18};
19
20/**
21 * struct rpi_firmware_property_tag_header - Firmware property tag header
22 * @tag: One of enum_mbox_property_tag.
23 * @buf_size: The number of bytes in the value buffer following this
24 * struct.
25 * @req_resp_size: On submit, the length of the request (though it doesn't
26 * appear to be currently used by the firmware). On return,
27 * the length of the response (always 4 byte aligned), with
28 * the low bit set.
29 */
30struct rpi_firmware_property_tag_header {
31 u32 tag;
32 u32 buf_size;
33 u32 req_resp_size;
34};
35
36enum rpi_firmware_property_tag {
37 RPI_FIRMWARE_PROPERTY_END = 0,
38 RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001,
39
40 RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010,
41 RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011,
42
43 RPI_FIRMWARE_GET_BOARD_MODEL = 0x00010001,
44 RPI_FIRMWARE_GET_BOARD_REVISION = 0x00010002,
45 RPI_FIRMWARE_GET_BOARD_MAC_ADDRESS = 0x00010003,
46 RPI_FIRMWARE_GET_BOARD_SERIAL = 0x00010004,
47 RPI_FIRMWARE_GET_ARM_MEMORY = 0x00010005,
48 RPI_FIRMWARE_GET_VC_MEMORY = 0x00010006,
49 RPI_FIRMWARE_GET_CLOCKS = 0x00010007,
50 RPI_FIRMWARE_GET_POWER_STATE = 0x00020001,
51 RPI_FIRMWARE_GET_TIMING = 0x00020002,
52 RPI_FIRMWARE_SET_POWER_STATE = 0x00028001,
53 RPI_FIRMWARE_GET_CLOCK_STATE = 0x00030001,
54 RPI_FIRMWARE_GET_CLOCK_RATE = 0x00030002,
55 RPI_FIRMWARE_GET_VOLTAGE = 0x00030003,
56 RPI_FIRMWARE_GET_MAX_CLOCK_RATE = 0x00030004,
57 RPI_FIRMWARE_GET_MAX_VOLTAGE = 0x00030005,
58 RPI_FIRMWARE_GET_TEMPERATURE = 0x00030006,
59 RPI_FIRMWARE_GET_MIN_CLOCK_RATE = 0x00030007,
60 RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008,
61 RPI_FIRMWARE_GET_TURBO = 0x00030009,
62 RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a,
63 RPI_FIRMWARE_GET_STC = 0x0003000b,
64 RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c,
65 RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d,
66 RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e,
67 RPI_FIRMWARE_RELEASE_MEMORY = 0x0003000f,
68 RPI_FIRMWARE_EXECUTE_CODE = 0x00030010,
69 RPI_FIRMWARE_EXECUTE_QPU = 0x00030011,
70 RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012,
71 RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014,
72 RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020,
73 RPI_FIRMWARE_GET_CUSTOMER_OTP = 0x00030021,
74 RPI_FIRMWARE_GET_DOMAIN_STATE = 0x00030030,
75 RPI_FIRMWARE_GET_THROTTLED = 0x00030046,
76 RPI_FIRMWARE_GET_CLOCK_MEASURED = 0x00030047,
77 RPI_FIRMWARE_NOTIFY_REBOOT = 0x00030048,
78 RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001,
79 RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002,
80 RPI_FIRMWARE_SET_VOLTAGE = 0x00038003,
81 RPI_FIRMWARE_SET_TURBO = 0x00038009,
82 RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021,
83 RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030,
84 RPI_FIRMWARE_GET_GPIO_STATE = 0x00030041,
85 RPI_FIRMWARE_SET_GPIO_STATE = 0x00038041,
86 RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042,
87 RPI_FIRMWARE_GET_GPIO_CONFIG = 0x00030043,
88 RPI_FIRMWARE_SET_GPIO_CONFIG = 0x00038043,
89 RPI_FIRMWARE_GET_PERIPH_REG = 0x00030045,
90 RPI_FIRMWARE_SET_PERIPH_REG = 0x00038045,
91 RPI_FIRMWARE_GET_POE_HAT_VAL = 0x00030049,
92 RPI_FIRMWARE_SET_POE_HAT_VAL = 0x00030050,
93 RPI_FIRMWARE_NOTIFY_XHCI_RESET = 0x00030058,
94 RPI_FIRMWARE_NOTIFY_DISPLAY_DONE = 0x00030066,
95
96 /* Dispmanx TAGS */
97 RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001,
98 RPI_FIRMWARE_FRAMEBUFFER_BLANK = 0x00040002,
99 RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT = 0x00040003,
100 RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_WIDTH_HEIGHT = 0x00040004,
101 RPI_FIRMWARE_FRAMEBUFFER_GET_DEPTH = 0x00040005,
102 RPI_FIRMWARE_FRAMEBUFFER_GET_PIXEL_ORDER = 0x00040006,
103 RPI_FIRMWARE_FRAMEBUFFER_GET_ALPHA_MODE = 0x00040007,
104 RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH = 0x00040008,
105 RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009,
106 RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a,
107 RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b,
108 RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f,
109 RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010,
110 RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001,
111 RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003,
112 RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004,
113 RPI_FIRMWARE_FRAMEBUFFER_TEST_DEPTH = 0x00044005,
114 RPI_FIRMWARE_FRAMEBUFFER_TEST_PIXEL_ORDER = 0x00044006,
115 RPI_FIRMWARE_FRAMEBUFFER_TEST_ALPHA_MODE = 0x00044007,
116 RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009,
117 RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a,
118 RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b,
119 RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC = 0x0004400e,
120 RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003,
121 RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004,
122 RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005,
123 RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER = 0x00048006,
124 RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE = 0x00048007,
125 RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009,
126 RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a,
127 RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b,
128 RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f,
129 RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF = 0x00048020,
130 RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e,
131 RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f,
132
133 RPI_FIRMWARE_VCHIQ_INIT = 0x00048010,
134
135 RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001,
136 RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001,
137};
138
139enum rpi_firmware_clk_id {
140 RPI_FIRMWARE_EMMC_CLK_ID = 1,
141 RPI_FIRMWARE_UART_CLK_ID,
142 RPI_FIRMWARE_ARM_CLK_ID,
143 RPI_FIRMWARE_CORE_CLK_ID,
144 RPI_FIRMWARE_V3D_CLK_ID,
145 RPI_FIRMWARE_H264_CLK_ID,
146 RPI_FIRMWARE_ISP_CLK_ID,
147 RPI_FIRMWARE_SDRAM_CLK_ID,
148 RPI_FIRMWARE_PIXEL_CLK_ID,
149 RPI_FIRMWARE_PWM_CLK_ID,
150 RPI_FIRMWARE_HEVC_CLK_ID,
151 RPI_FIRMWARE_EMMC2_CLK_ID,
152 RPI_FIRMWARE_M2MC_CLK_ID,
153 RPI_FIRMWARE_PIXEL_BVB_CLK_ID,
154 RPI_FIRMWARE_VEC_CLK_ID,
155 RPI_FIRMWARE_NUM_CLK_ID,
156};
157
158/**
159 * struct rpi_firmware_clk_rate_request - Firmware Request for a rate
160 * @id: ID of the clock being queried
161 * @rate: Rate in Hertz. Set by the firmware.
162 *
163 * Used by @RPI_FIRMWARE_GET_CLOCK_RATE, @RPI_FIRMWARE_GET_CLOCK_MEASURED,
164 * @RPI_FIRMWARE_GET_MAX_CLOCK_RATE and @RPI_FIRMWARE_GET_MIN_CLOCK_RATE.
165 */
166struct rpi_firmware_clk_rate_request {
167 __le32 id;
168 __le32 rate;
169} __packed;
170
171#define RPI_FIRMWARE_CLK_RATE_REQUEST(_id) \
172 { \
173 .id = cpu_to_le32(_id), \
174 }
175
176#if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE)
177int rpi_firmware_property(struct rpi_firmware *fw,
178 u32 tag, void *data, size_t len);
179int rpi_firmware_property_list(struct rpi_firmware *fw,
180 void *data, size_t tag_size);
181void rpi_firmware_put(struct rpi_firmware *fw);
182unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw,
183 unsigned int id);
184struct device_node *rpi_firmware_find_node(void);
185struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node);
186struct rpi_firmware *devm_rpi_firmware_get(struct device *dev,
187 struct device_node *firmware_node);
188#else
189static inline int rpi_firmware_property(struct rpi_firmware *fw, u32 tag,
190 void *data, size_t len)
191{
192 return -ENOSYS;
193}
194
195static inline int rpi_firmware_property_list(struct rpi_firmware *fw,
196 void *data, size_t tag_size)
197{
198 return -ENOSYS;
199}
200
201static inline void rpi_firmware_put(struct rpi_firmware *fw) { }
202
203static inline unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw,
204 unsigned int id)
205{
206 return UINT_MAX;
207}
208
209static inline struct device_node *rpi_firmware_find_node(void)
210{
211 return NULL;
212}
213
214static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
215{
216 return NULL;
217}
218
219static inline struct rpi_firmware *devm_rpi_firmware_get(struct device *dev,
220 struct device_node *firmware_node)
221{
222 return NULL;
223}
224#endif
225
226#endif /* __SOC_RASPBERRY_FIRMWARE_H__ */