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a1904fa4df
We silently cast an unsigned int into a __le32 which makes sparse
complain. Moreover, we never actually convert endianness between the
CPU's and the expected little-endian value. Fix both at once by calling
cpu_to_le32().
Fixes: 40c31955e4 ("firmware: raspberrypi: Provide a helper to query a clock max rate")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20221116091712.1309651-3-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20230102115255.17802-1-maxime@cerno.tech
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
227 lines
9.4 KiB
C
227 lines
9.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright © 2015 Broadcom
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*/
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#ifndef __SOC_RASPBERRY_FIRMWARE_H__
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#define __SOC_RASPBERRY_FIRMWARE_H__
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#include <linux/types.h>
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#include <linux/of_device.h>
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struct rpi_firmware;
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enum rpi_firmware_property_status {
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RPI_FIRMWARE_STATUS_REQUEST = 0,
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RPI_FIRMWARE_STATUS_SUCCESS = 0x80000000,
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RPI_FIRMWARE_STATUS_ERROR = 0x80000001,
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};
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/**
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* struct rpi_firmware_property_tag_header - Firmware property tag header
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* @tag: One of enum_mbox_property_tag.
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* @buf_size: The number of bytes in the value buffer following this
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* struct.
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* @req_resp_size: On submit, the length of the request (though it doesn't
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* appear to be currently used by the firmware). On return,
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* the length of the response (always 4 byte aligned), with
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* the low bit set.
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*/
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struct rpi_firmware_property_tag_header {
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u32 tag;
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u32 buf_size;
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u32 req_resp_size;
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};
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enum rpi_firmware_property_tag {
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RPI_FIRMWARE_PROPERTY_END = 0,
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RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001,
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RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010,
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RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011,
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RPI_FIRMWARE_GET_BOARD_MODEL = 0x00010001,
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RPI_FIRMWARE_GET_BOARD_REVISION = 0x00010002,
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RPI_FIRMWARE_GET_BOARD_MAC_ADDRESS = 0x00010003,
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RPI_FIRMWARE_GET_BOARD_SERIAL = 0x00010004,
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RPI_FIRMWARE_GET_ARM_MEMORY = 0x00010005,
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RPI_FIRMWARE_GET_VC_MEMORY = 0x00010006,
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RPI_FIRMWARE_GET_CLOCKS = 0x00010007,
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RPI_FIRMWARE_GET_POWER_STATE = 0x00020001,
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RPI_FIRMWARE_GET_TIMING = 0x00020002,
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RPI_FIRMWARE_SET_POWER_STATE = 0x00028001,
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RPI_FIRMWARE_GET_CLOCK_STATE = 0x00030001,
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RPI_FIRMWARE_GET_CLOCK_RATE = 0x00030002,
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RPI_FIRMWARE_GET_VOLTAGE = 0x00030003,
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RPI_FIRMWARE_GET_MAX_CLOCK_RATE = 0x00030004,
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RPI_FIRMWARE_GET_MAX_VOLTAGE = 0x00030005,
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RPI_FIRMWARE_GET_TEMPERATURE = 0x00030006,
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RPI_FIRMWARE_GET_MIN_CLOCK_RATE = 0x00030007,
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RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008,
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RPI_FIRMWARE_GET_TURBO = 0x00030009,
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RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a,
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RPI_FIRMWARE_GET_STC = 0x0003000b,
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RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c,
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RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d,
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RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e,
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RPI_FIRMWARE_RELEASE_MEMORY = 0x0003000f,
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RPI_FIRMWARE_EXECUTE_CODE = 0x00030010,
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RPI_FIRMWARE_EXECUTE_QPU = 0x00030011,
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RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012,
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RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014,
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RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020,
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RPI_FIRMWARE_GET_CUSTOMER_OTP = 0x00030021,
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RPI_FIRMWARE_GET_DOMAIN_STATE = 0x00030030,
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RPI_FIRMWARE_GET_THROTTLED = 0x00030046,
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RPI_FIRMWARE_GET_CLOCK_MEASURED = 0x00030047,
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RPI_FIRMWARE_NOTIFY_REBOOT = 0x00030048,
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RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001,
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RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002,
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RPI_FIRMWARE_SET_VOLTAGE = 0x00038003,
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RPI_FIRMWARE_SET_TURBO = 0x00038009,
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RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021,
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RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030,
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RPI_FIRMWARE_GET_GPIO_STATE = 0x00030041,
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RPI_FIRMWARE_SET_GPIO_STATE = 0x00038041,
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RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042,
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RPI_FIRMWARE_GET_GPIO_CONFIG = 0x00030043,
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RPI_FIRMWARE_SET_GPIO_CONFIG = 0x00038043,
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RPI_FIRMWARE_GET_PERIPH_REG = 0x00030045,
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RPI_FIRMWARE_SET_PERIPH_REG = 0x00038045,
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RPI_FIRMWARE_GET_POE_HAT_VAL = 0x00030049,
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RPI_FIRMWARE_SET_POE_HAT_VAL = 0x00030050,
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RPI_FIRMWARE_NOTIFY_XHCI_RESET = 0x00030058,
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RPI_FIRMWARE_NOTIFY_DISPLAY_DONE = 0x00030066,
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/* Dispmanx TAGS */
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RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001,
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RPI_FIRMWARE_FRAMEBUFFER_BLANK = 0x00040002,
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RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT = 0x00040003,
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RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_WIDTH_HEIGHT = 0x00040004,
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RPI_FIRMWARE_FRAMEBUFFER_GET_DEPTH = 0x00040005,
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RPI_FIRMWARE_FRAMEBUFFER_GET_PIXEL_ORDER = 0x00040006,
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RPI_FIRMWARE_FRAMEBUFFER_GET_ALPHA_MODE = 0x00040007,
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RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH = 0x00040008,
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RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009,
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RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a,
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RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b,
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RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f,
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RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010,
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RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_DEPTH = 0x00044005,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_PIXEL_ORDER = 0x00044006,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_ALPHA_MODE = 0x00044007,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b,
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RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC = 0x0004400e,
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RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003,
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RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004,
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RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005,
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RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER = 0x00048006,
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RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE = 0x00048007,
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RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009,
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RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a,
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RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b,
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RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f,
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RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF = 0x00048020,
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RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e,
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RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f,
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RPI_FIRMWARE_VCHIQ_INIT = 0x00048010,
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RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001,
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RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001,
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};
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enum rpi_firmware_clk_id {
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RPI_FIRMWARE_EMMC_CLK_ID = 1,
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RPI_FIRMWARE_UART_CLK_ID,
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RPI_FIRMWARE_ARM_CLK_ID,
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RPI_FIRMWARE_CORE_CLK_ID,
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RPI_FIRMWARE_V3D_CLK_ID,
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RPI_FIRMWARE_H264_CLK_ID,
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RPI_FIRMWARE_ISP_CLK_ID,
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RPI_FIRMWARE_SDRAM_CLK_ID,
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RPI_FIRMWARE_PIXEL_CLK_ID,
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RPI_FIRMWARE_PWM_CLK_ID,
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RPI_FIRMWARE_HEVC_CLK_ID,
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RPI_FIRMWARE_EMMC2_CLK_ID,
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RPI_FIRMWARE_M2MC_CLK_ID,
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RPI_FIRMWARE_PIXEL_BVB_CLK_ID,
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RPI_FIRMWARE_VEC_CLK_ID,
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RPI_FIRMWARE_NUM_CLK_ID,
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};
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/**
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* struct rpi_firmware_clk_rate_request - Firmware Request for a rate
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* @id: ID of the clock being queried
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* @rate: Rate in Hertz. Set by the firmware.
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*
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* Used by @RPI_FIRMWARE_GET_CLOCK_RATE, @RPI_FIRMWARE_GET_CLOCK_MEASURED,
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* @RPI_FIRMWARE_GET_MAX_CLOCK_RATE and @RPI_FIRMWARE_GET_MIN_CLOCK_RATE.
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*/
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struct rpi_firmware_clk_rate_request {
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__le32 id;
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__le32 rate;
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} __packed;
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#define RPI_FIRMWARE_CLK_RATE_REQUEST(_id) \
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{ \
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.id = cpu_to_le32(_id), \
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}
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#if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE)
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int rpi_firmware_property(struct rpi_firmware *fw,
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u32 tag, void *data, size_t len);
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int rpi_firmware_property_list(struct rpi_firmware *fw,
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void *data, size_t tag_size);
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void rpi_firmware_put(struct rpi_firmware *fw);
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unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw,
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unsigned int id);
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struct device_node *rpi_firmware_find_node(void);
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struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node);
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struct rpi_firmware *devm_rpi_firmware_get(struct device *dev,
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struct device_node *firmware_node);
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#else
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static inline int rpi_firmware_property(struct rpi_firmware *fw, u32 tag,
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void *data, size_t len)
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{
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return -ENOSYS;
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}
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static inline int rpi_firmware_property_list(struct rpi_firmware *fw,
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void *data, size_t tag_size)
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{
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return -ENOSYS;
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}
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static inline void rpi_firmware_put(struct rpi_firmware *fw) { }
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static inline unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw,
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unsigned int id)
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{
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return UINT_MAX;
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}
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static inline struct device_node *rpi_firmware_find_node(void)
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{
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return NULL;
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}
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static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
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{
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return NULL;
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}
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static inline struct rpi_firmware *devm_rpi_firmware_get(struct device *dev,
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struct device_node *firmware_node)
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{
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return NULL;
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}
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#endif
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#endif /* __SOC_RASPBERRY_FIRMWARE_H__ */
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