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-rw-r--r--arch/arm/mach-bcm283x/include/mach/mbox.h543
1 files changed, 0 insertions, 543 deletions
diff --git a/arch/arm/mach-bcm283x/include/mach/mbox.h b/arch/arm/mach-bcm283x/include/mach/mbox.h
deleted file mode 100644
index f10f5bc148..0000000000
--- a/arch/arm/mach-bcm283x/include/mach/mbox.h
+++ /dev/null
@@ -1,543 +0,0 @@
-/*
- * based on U-Boot code
- *
- * (C) Copyright 2012 Stephen Warren
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#ifndef _BCM2835_MBOX_H
-#define _BCM2835_MBOX_H
-
-#include <common.h>
-
-#include <mach/platform.h>
-
-/*
- * The BCM2835 SoC contains (at least) two CPUs; the VideoCore (a/k/a "GPU")
- * and the ARM CPU. The ARM CPU is often thought of as the main CPU.
- * However, the VideoCore actually controls the initial SoC boot, and hides
- * much of the hardware behind a protocol. This protocol is transported
- * using the SoC's mailbox hardware module.
- *
- * The mailbox hardware supports passing 32-bit values back and forth.
- * Presumably by software convention of the firmware, the bottom 4 bits of the
- * value are used to indicate a logical channel, and the upper 28 bits are the
- * actual payload. Various channels exist using these simple raw messages. See
- * https://github.com/raspberrypi/firmware/wiki/Mailboxes for a list. As an
- * example, the messages on the power management channel are a bitmask of
- * devices whose power should be enabled.
- *
- * The property mailbox channel passes messages that contain the (16-byte
- * aligned) ARM physical address of a memory buffer. This buffer is passed to
- * the VC for processing, is modified in-place by the VC, and the address then
- * passed back to the ARM CPU as the response mailbox message to indicate
- * request completion. The buffers have a generic and extensible format; each
- * buffer contains a standard header, a list of "tags", and a terminating zero
- * entry. Each tag contains an ID indicating its type, and length fields for
- * generic parsing. With some limitations, an arbitrary set of tags may be
- * combined together into a single message buffer. This file defines structs
- * representing the header and many individual tag layouts and IDs.
- */
-
-/* Raw mailbox HW */
-#define ARM_0_MAIL0 0x00
-#define ARM_0_MAIL1 0x20
-
-#define MAIL0_RD (ARM_0_MAIL0 + 0x00)
-#define MAIL0_POL (ARM_0_MAIL0 + 0x10)
-#define MAIL0_STA (ARM_0_MAIL0 + 0x18)
-#define MAIL0_CNF (ARM_0_MAIL0 + 0x1C)
-#define MAIL1_WRT (ARM_0_MAIL1 + 0x00)
-#define MAIL1_STA (ARM_0_MAIL1 + 0x18)
-
-#define BCM2835_MBOX_STATUS_WR_FULL 0x80000000
-#define BCM2835_MBOX_STATUS_RD_EMPTY 0x40000000
-
-/* Lower 4-bits are channel ID */
-#define BCM2835_CHAN_MASK 0xf
-#define BCM2835_MBOX_PACK(chan, data) (((data) & (~BCM2835_CHAN_MASK)) | \
- (chan & BCM2835_CHAN_MASK))
-#define BCM2835_MBOX_UNPACK_CHAN(val) ((val) & BCM2835_CHAN_MASK)
-#define BCM2835_MBOX_UNPACK_DATA(val) ((val) & (~BCM2835_CHAN_MASK))
-
-/* Property mailbox buffer structures */
-
-#define BCM2835_MBOX_PROP_CHAN 8
-
-/* All message buffers must start with this header */
-struct bcm2835_mbox_hdr {
- u32 buf_size;
- u32 code;
-};
-
-#define BCM2835_MBOX_REQ_CODE 0
-#define BCM2835_MBOX_RESP_CODE_SUCCESS 0x80000000
-
-#define BCM2835_MBOX_STACK_ALIGN(type, name) \
- STACK_ALIGN_ARRAY(type, name, 1, BCM2835_CACHELINE_SIZE)
-
-#define BCM2835_MBOX_INIT_HDR(_m_) { \
- memset((_m_), 0, sizeof(*(_m_))); \
- (_m_)->hdr.buf_size = sizeof(*(_m_)); \
- (_m_)->hdr.code = 0; \
- (_m_)->end_tag = 0; \
- }
-
-/*
- * A message buffer contains a list of tags. Each tag must also start with
- * a standardized header.
- */
-struct bcm2835_mbox_tag_hdr {
- u32 tag;
- u32 val_buf_size;
- u32 val_len;
-};
-
-#define BCM2835_MBOX_INIT_TAG(_t_, _id_) { \
- (_t_)->tag_hdr.tag = BCM2835_MBOX_TAG_##_id_; \
- (_t_)->tag_hdr.val_buf_size = sizeof((_t_)->body); \
- (_t_)->tag_hdr.val_len = sizeof((_t_)->body.req); \
- }
-
-#define BCM2835_MBOX_INIT_TAG_NO_REQ(_t_, _id_) { \
- (_t_)->tag_hdr.tag = BCM2835_MBOX_TAG_##_id_; \
- (_t_)->tag_hdr.val_buf_size = sizeof((_t_)->body); \
- (_t_)->tag_hdr.val_len = 0; \
- }
-
-/* When responding, the VC sets this bit in val_len to indicate a response */
-#define BCM2835_MBOX_TAG_VAL_LEN_RESPONSE 0x80000000
-
-/*
- * Below we define the ID and struct for many possible tags. This header only
- * defines individual tag structs, not entire message structs, since in
- * general an arbitrary set of tags may be combined into a single message.
- * Clients of the mbox API are expected to define their own overall message
- * structures by combining the header, a set of tags, and a terminating
- * entry. For example,
- *
- * struct msg {
- * struct bcm2835_mbox_hdr hdr;
- * struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
- * ... perhaps other tags here ...
- * u32 end_tag;
- * };
- */
-
-#define BCM2835_MBOX_TAG_GET_BOARD_REV 0x00010002
-#define BCM2835_MBOX_TAG_GET_GPIO_STATE 0x00030041
-#define BCM2835_MBOX_TAG_SET_GPIO_STATE 0x00038041
-#define BCM2835_MBOX_TAG_GET_GPIO_CONFIG 0x00030043
-#define BCM2835_MBOX_TAG_SET_GPIO_CONFIG 0x00038043
-
-/*
- * ids
- * https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
- * cpu info
- * https://en.wikipedia.org/wiki/Raspberry_Pi#Processor
- *
- */
-#define BCM2835_BOARD_REV_B_I2C0_2 0x2
-#define BCM2835_BOARD_REV_B_I2C0_3 0x3
-#define BCM2835_BOARD_REV_B_I2C1_4 0x4
-#define BCM2835_BOARD_REV_B_I2C1_5 0x5
-#define BCM2835_BOARD_REV_B_I2C1_6 0x6
-#define BCM2835_BOARD_REV_A_7 0x7
-#define BCM2835_BOARD_REV_A_8 0x8
-#define BCM2835_BOARD_REV_A_9 0x9
-#define BCM2835_BOARD_REV_B_REV2_d 0xd
-#define BCM2835_BOARD_REV_B_REV2_e 0xe
-#define BCM2835_BOARD_REV_B_REV2_f 0xf
-#define BCM2835_BOARD_REV_B_PLUS_10 0x10
-#define BCM2835_BOARD_REV_CM_11 0x11
-#define BCM2835_BOARD_REV_A_PLUS_12 0x12
-#define BCM2835_BOARD_REV_B_PLUS_13 0x13
-#define BCM2835_BOARD_REV_CM_14 0x14
-#define BCM2835_BOARD_REV_A_PLUS_15 0x15
-
-
-#define BCM2835_BOARD_REV_A 0x00
-#define BCM2835_BOARD_REV_B 0x01
-#define BCM2835_BOARD_REV_A_PLUS 0x02
-#define BCM2835_BOARD_REV_B_PLUS 0x03
-#define BCM2836_BOARD_REV_2_B 0x04
-#define BCM283x_BOARD_REV_Alpha 0x05
-#define BCM2835_BOARD_REV_CM1 0x06
-#define BCM2837_BOARD_REV_3_B 0x08
-#define BCM2835_BOARD_REV_ZERO 0x09
-#define BCM2837_BOARD_REV_CM3 0x0a
-#define BCM2835_BOARD_REV_ZERO_W 0x0c
-#define BCM2837B0_BOARD_REV_3B_PLUS 0x0d
-#define BCM2837B0_BOARD_REV_3A_PLUS 0x0e
-#define BCM2837B0_BOARD_REV_CM3_PLUS 0x10
-
-struct bcm2835_mbox_tag_get_board_rev {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- u32 rev;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_MAC_ADDRESS 0x00010003
-
-struct bcm2835_mbox_tag_get_mac_address {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- u8 mac[6];
- u8 pad[2];
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_ARM_MEMORY 0x00010005
-
-struct bcm2835_mbox_tag_get_arm_mem {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- u32 mem_base;
- u32 mem_size;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_POWER_DEVID_SDHCI 0
-#define BCM2835_MBOX_POWER_DEVID_UART0 1
-#define BCM2835_MBOX_POWER_DEVID_UART1 2
-#define BCM2835_MBOX_POWER_DEVID_USB_HCD 3
-#define BCM2835_MBOX_POWER_DEVID_I2C0 4
-#define BCM2835_MBOX_POWER_DEVID_I2C1 5
-#define BCM2835_MBOX_POWER_DEVID_I2C2 6
-#define BCM2835_MBOX_POWER_DEVID_SPI 7
-#define BCM2835_MBOX_POWER_DEVID_CCP2TX 8
-
-#define BCM2835_MBOX_POWER_STATE_RESP_ON (1 << 0)
-/* Device doesn't exist */
-#define BCM2835_MBOX_POWER_STATE_RESP_NODEV (1 << 1)
-
-#define BCM2835_MBOX_TAG_GET_POWER_STATE 0x00020001
-
-struct bcm2835_mbox_tag_get_power_state {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 device_id;
- } req;
- struct {
- u32 device_id;
- u32 state;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_SET_POWER_STATE 0x00028001
-
-#define BCM2835_MBOX_SET_POWER_STATE_REQ_OFF (0 << 0)
-#define BCM2835_MBOX_SET_POWER_STATE_REQ_ON (1 << 0)
-#define BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT (1 << 1)
-
-struct bcm2835_mbox_tag_set_power_state {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 device_id;
- u32 state;
- } req;
- struct {
- u32 device_id;
- u32 state;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_CLOCK_RATE 0x00030002
-
-#define BCM2835_MBOX_CLOCK_ID_EMMC 1
-#define BCM2835_MBOX_CLOCK_ID_UART 2
-#define BCM2835_MBOX_CLOCK_ID_ARM 3
-#define BCM2835_MBOX_CLOCK_ID_CORE 4
-#define BCM2835_MBOX_CLOCK_ID_V3D 5
-#define BCM2835_MBOX_CLOCK_ID_H264 6
-#define BCM2835_MBOX_CLOCK_ID_ISP 7
-#define BCM2835_MBOX_CLOCK_ID_SDRAM 8
-#define BCM2835_MBOX_CLOCK_ID_PIXEL 9
-#define BCM2835_MBOX_CLOCK_ID_PWM 10
-
-struct bcm2835_mbox_tag_get_clock_rate {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 clock_id;
- } req;
- struct {
- u32 clock_id;
- u32 rate_hz;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_ALLOCATE_BUFFER 0x00040001
-
-struct bcm2835_mbox_tag_allocate_buffer {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 alignment;
- } req;
- struct {
- u32 fb_address;
- u32 fb_size;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_RELEASE_BUFFER 0x00048001
-
-struct bcm2835_mbox_tag_release_buffer {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_BLANK_SCREEN 0x00040002
-
-struct bcm2835_mbox_tag_blank_screen {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- /* bit 0 means on, other bits reserved */
- u32 state;
- } req;
- struct {
- u32 state;
- } resp;
- } body;
-};
-
-/* Physical means output signal */
-#define BCM2835_MBOX_TAG_GET_PHYSICAL_W_H 0x00040003
-#define BCM2835_MBOX_TAG_TEST_PHYSICAL_W_H 0x00044003
-#define BCM2835_MBOX_TAG_SET_PHYSICAL_W_H 0x00048003
-
-struct bcm2835_mbox_tag_physical_w_h {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 width;
- u32 height;
- } req;
- struct {
- u32 width;
- u32 height;
- } resp;
- } body;
-};
-
-/* Virtual means display buffer */
-#define BCM2835_MBOX_TAG_GET_VIRTUAL_W_H 0x00040004
-#define BCM2835_MBOX_TAG_TEST_VIRTUAL_W_H 0x00044004
-#define BCM2835_MBOX_TAG_SET_VIRTUAL_W_H 0x00048004
-
-struct bcm2835_mbox_tag_virtual_w_h {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 width;
- u32 height;
- } req;
- struct {
- u32 width;
- u32 height;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_DEPTH 0x00040005
-#define BCM2835_MBOX_TAG_TEST_DEPTH 0x00044005
-#define BCM2835_MBOX_TAG_SET_DEPTH 0x00048005
-
-struct bcm2835_mbox_tag_depth {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 bpp;
- } req;
- struct {
- u32 bpp;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_PIXEL_ORDER 0x00040006
-#define BCM2835_MBOX_TAG_TEST_PIXEL_ORDER 0x00044005
-#define BCM2835_MBOX_TAG_SET_PIXEL_ORDER 0x00048006
-
-#define BCM2835_MBOX_PIXEL_ORDER_BGR 0
-#define BCM2835_MBOX_PIXEL_ORDER_RGB 1
-
-struct bcm2835_mbox_tag_pixel_order {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 order;
- } req;
- struct {
- u32 order;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_ALPHA_MODE 0x00040007
-#define BCM2835_MBOX_TAG_TEST_ALPHA_MODE 0x00044007
-#define BCM2835_MBOX_TAG_SET_ALPHA_MODE 0x00048007
-
-#define BCM2835_MBOX_ALPHA_MODE_0_OPAQUE 0
-#define BCM2835_MBOX_ALPHA_MODE_0_TRANSPARENT 1
-#define BCM2835_MBOX_ALPHA_MODE_IGNORED 2
-
-struct bcm2835_mbox_tag_alpha_mode {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 alpha;
- } req;
- struct {
- u32 alpha;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_PITCH 0x00040008
-
-struct bcm2835_mbox_tag_pitch {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- u32 pitch;
- } resp;
- } body;
-};
-
-/* Offset of display window within buffer */
-#define BCM2835_MBOX_TAG_GET_VIRTUAL_OFFSET 0x00040009
-#define BCM2835_MBOX_TAG_TEST_VIRTUAL_OFFSET 0x00044009
-#define BCM2835_MBOX_TAG_SET_VIRTUAL_OFFSET 0x00048009
-
-struct bcm2835_mbox_tag_virtual_offset {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 x;
- u32 y;
- } req;
- struct {
- u32 x;
- u32 y;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_OVERSCAN 0x0004000a
-#define BCM2835_MBOX_TAG_TEST_OVERSCAN 0x0004400a
-#define BCM2835_MBOX_TAG_SET_OVERSCAN 0x0004800a
-
-struct bcm2835_mbox_tag_overscan {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- /* req not used for get */
- struct {
- u32 top;
- u32 bottom;
- u32 left;
- u32 right;
- } req;
- struct {
- u32 top;
- u32 bottom;
- u32 left;
- u32 right;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_GET_PALETTE 0x0004000b
-
-struct bcm2835_mbox_tag_get_palette {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- } req;
- struct {
- u32 data[1024];
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_TEST_PALETTE 0x0004400b
-
-struct bcm2835_mbox_tag_test_palette {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 offset;
- u32 num_entries;
- u32 data[256];
- } req;
- struct {
- u32 is_invalid;
- } resp;
- } body;
-};
-
-#define BCM2835_MBOX_TAG_SET_PALETTE 0x0004800b
-
-struct bcm2835_mbox_tag_set_palette {
- struct bcm2835_mbox_tag_hdr tag_hdr;
- union {
- struct {
- u32 offset;
- u32 num_entries;
- u32 data[256];
- } req;
- struct {
- u32 is_invalid;
- } resp;
- } body;
-};
-
-/*
- * Pass a complete property-style buffer to the VC, and wait until it has
- * been processed.
- *
- * This function expects a pointer to the mbox_hdr structure in an attempt
- * to ensure some degree of type safety. However, some number of tags and
- * a termination value are expected to immediately follow the header in
- * memory, as required by the property protocol.
- *
- * Returns 0 for success, any other value for error.
- */
-int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer);
-
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 18:52:20 +0000