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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Copyright (c) 2016, Zodiac Inflight Innovations
- * Copyright (c) 2007-2016, Synaptics Incorporated
- * Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com>
- * Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com>
- */
- #include <linux/bitops.h>
- #include <linux/kernel.h>
- #include <linux/rmi.h>
- #include <linux/firmware.h>
- #include <linux/delay.h>
- #include <linux/slab.h>
- #include <linux/jiffies.h>
- #include <asm/unaligned.h>
- #include "rmi_driver.h"
- #include "rmi_f34.h"
- static int rmi_f34v7_read_flash_status(struct f34_data *f34)
- {
- u8 status;
- u8 command;
- int ret;
- ret = rmi_read_block(f34->fn->rmi_dev,
- f34->fn->fd.data_base_addr + f34->v7.off.flash_status,
- &status,
- sizeof(status));
- if (ret < 0) {
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Error %d reading flash status\n", __func__, ret);
- return ret;
- }
- f34->v7.in_bl_mode = status >> 7;
- f34->v7.flash_status = status & 0x1f;
- if (f34->v7.flash_status != 0x00) {
- dev_err(&f34->fn->dev, "%s: status=%d, command=0x%02x\n",
- __func__, f34->v7.flash_status, f34->v7.command);
- }
- ret = rmi_read_block(f34->fn->rmi_dev,
- f34->fn->fd.data_base_addr + f34->v7.off.flash_cmd,
- &command,
- sizeof(command));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read flash command\n",
- __func__);
- return ret;
- }
- f34->v7.command = command;
- return 0;
- }
- static int rmi_f34v7_wait_for_idle(struct f34_data *f34, int timeout_ms)
- {
- unsigned long timeout;
- timeout = msecs_to_jiffies(timeout_ms);
- if (!wait_for_completion_timeout(&f34->v7.cmd_done, timeout)) {
- dev_warn(&f34->fn->dev, "%s: Timed out waiting for idle status\n",
- __func__);
- return -ETIMEDOUT;
- }
- return 0;
- }
- static int rmi_f34v7_write_command_single_transaction(struct f34_data *f34,
- u8 cmd)
- {
- int ret;
- u8 base;
- struct f34v7_data_1_5 data_1_5;
- base = f34->fn->fd.data_base_addr;
- memset(&data_1_5, 0, sizeof(data_1_5));
- switch (cmd) {
- case v7_CMD_ERASE_ALL:
- data_1_5.partition_id = CORE_CODE_PARTITION;
- data_1_5.command = CMD_V7_ERASE_AP;
- break;
- case v7_CMD_ERASE_UI_FIRMWARE:
- data_1_5.partition_id = CORE_CODE_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ERASE_BL_CONFIG:
- data_1_5.partition_id = GLOBAL_PARAMETERS_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ERASE_UI_CONFIG:
- data_1_5.partition_id = CORE_CONFIG_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ERASE_DISP_CONFIG:
- data_1_5.partition_id = DISPLAY_CONFIG_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ERASE_FLASH_CONFIG:
- data_1_5.partition_id = FLASH_CONFIG_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ERASE_GUEST_CODE:
- data_1_5.partition_id = GUEST_CODE_PARTITION;
- data_1_5.command = CMD_V7_ERASE;
- break;
- case v7_CMD_ENABLE_FLASH_PROG:
- data_1_5.partition_id = BOOTLOADER_PARTITION;
- data_1_5.command = CMD_V7_ENTER_BL;
- break;
- }
- data_1_5.payload[0] = f34->bootloader_id[0];
- data_1_5.payload[1] = f34->bootloader_id[1];
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.partition_id,
- &data_1_5, sizeof(data_1_5));
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Failed to write single transaction command\n",
- __func__);
- return ret;
- }
- return 0;
- }
- static int rmi_f34v7_write_command(struct f34_data *f34, u8 cmd)
- {
- int ret;
- u8 base;
- u8 command;
- base = f34->fn->fd.data_base_addr;
- switch (cmd) {
- case v7_CMD_WRITE_FW:
- case v7_CMD_WRITE_CONFIG:
- case v7_CMD_WRITE_GUEST_CODE:
- command = CMD_V7_WRITE;
- break;
- case v7_CMD_READ_CONFIG:
- command = CMD_V7_READ;
- break;
- case v7_CMD_ERASE_ALL:
- command = CMD_V7_ERASE_AP;
- break;
- case v7_CMD_ERASE_UI_FIRMWARE:
- case v7_CMD_ERASE_BL_CONFIG:
- case v7_CMD_ERASE_UI_CONFIG:
- case v7_CMD_ERASE_DISP_CONFIG:
- case v7_CMD_ERASE_FLASH_CONFIG:
- case v7_CMD_ERASE_GUEST_CODE:
- command = CMD_V7_ERASE;
- break;
- case v7_CMD_ENABLE_FLASH_PROG:
- command = CMD_V7_ENTER_BL;
- break;
- default:
- dev_err(&f34->fn->dev, "%s: Invalid command 0x%02x\n",
- __func__, cmd);
- return -EINVAL;
- }
- f34->v7.command = command;
- switch (cmd) {
- case v7_CMD_ERASE_ALL:
- case v7_CMD_ERASE_UI_FIRMWARE:
- case v7_CMD_ERASE_BL_CONFIG:
- case v7_CMD_ERASE_UI_CONFIG:
- case v7_CMD_ERASE_DISP_CONFIG:
- case v7_CMD_ERASE_FLASH_CONFIG:
- case v7_CMD_ERASE_GUEST_CODE:
- case v7_CMD_ENABLE_FLASH_PROG:
- ret = rmi_f34v7_write_command_single_transaction(f34, cmd);
- if (ret < 0)
- return ret;
- else
- return 0;
- default:
- break;
- }
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: writing cmd %02X\n",
- __func__, command);
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.flash_cmd,
- &command, sizeof(command));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write flash command\n",
- __func__);
- return ret;
- }
- return 0;
- }
- static int rmi_f34v7_write_partition_id(struct f34_data *f34, u8 cmd)
- {
- int ret;
- u8 base;
- u8 partition;
- base = f34->fn->fd.data_base_addr;
- switch (cmd) {
- case v7_CMD_WRITE_FW:
- partition = CORE_CODE_PARTITION;
- break;
- case v7_CMD_WRITE_CONFIG:
- case v7_CMD_READ_CONFIG:
- if (f34->v7.config_area == v7_UI_CONFIG_AREA)
- partition = CORE_CONFIG_PARTITION;
- else if (f34->v7.config_area == v7_DP_CONFIG_AREA)
- partition = DISPLAY_CONFIG_PARTITION;
- else if (f34->v7.config_area == v7_PM_CONFIG_AREA)
- partition = GUEST_SERIALIZATION_PARTITION;
- else if (f34->v7.config_area == v7_BL_CONFIG_AREA)
- partition = GLOBAL_PARAMETERS_PARTITION;
- else if (f34->v7.config_area == v7_FLASH_CONFIG_AREA)
- partition = FLASH_CONFIG_PARTITION;
- break;
- case v7_CMD_WRITE_GUEST_CODE:
- partition = GUEST_CODE_PARTITION;
- break;
- case v7_CMD_ERASE_ALL:
- partition = CORE_CODE_PARTITION;
- break;
- case v7_CMD_ERASE_BL_CONFIG:
- partition = GLOBAL_PARAMETERS_PARTITION;
- break;
- case v7_CMD_ERASE_UI_CONFIG:
- partition = CORE_CONFIG_PARTITION;
- break;
- case v7_CMD_ERASE_DISP_CONFIG:
- partition = DISPLAY_CONFIG_PARTITION;
- break;
- case v7_CMD_ERASE_FLASH_CONFIG:
- partition = FLASH_CONFIG_PARTITION;
- break;
- case v7_CMD_ERASE_GUEST_CODE:
- partition = GUEST_CODE_PARTITION;
- break;
- case v7_CMD_ENABLE_FLASH_PROG:
- partition = BOOTLOADER_PARTITION;
- break;
- default:
- dev_err(&f34->fn->dev, "%s: Invalid command 0x%02x\n",
- __func__, cmd);
- return -EINVAL;
- }
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.partition_id,
- &partition, sizeof(partition));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write partition ID\n",
- __func__);
- return ret;
- }
- return 0;
- }
- static int rmi_f34v7_read_partition_table(struct f34_data *f34)
- {
- int ret;
- unsigned long timeout;
- u8 base;
- __le16 length;
- u16 block_number = 0;
- base = f34->fn->fd.data_base_addr;
- f34->v7.config_area = v7_FLASH_CONFIG_AREA;
- ret = rmi_f34v7_write_partition_id(f34, v7_CMD_READ_CONFIG);
- if (ret < 0)
- return ret;
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.block_number,
- &block_number, sizeof(block_number));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
- __func__);
- return ret;
- }
- put_unaligned_le16(f34->v7.flash_config_length, &length);
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.transfer_length,
- &length, sizeof(length));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write transfer length\n",
- __func__);
- return ret;
- }
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, v7_CMD_READ_CONFIG);
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write command\n",
- __func__);
- return ret;
- }
- timeout = msecs_to_jiffies(F34_WRITE_WAIT_MS);
- while (time_before(jiffies, timeout)) {
- usleep_range(5000, 6000);
- rmi_f34v7_read_flash_status(f34);
- if (f34->v7.command == v7_CMD_IDLE &&
- f34->v7.flash_status == 0x00) {
- break;
- }
- }
- ret = rmi_read_block(f34->fn->rmi_dev,
- base + f34->v7.off.payload,
- f34->v7.read_config_buf,
- f34->v7.partition_table_bytes);
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read block data\n",
- __func__);
- return ret;
- }
- return 0;
- }
- static void rmi_f34v7_parse_partition_table(struct f34_data *f34,
- const void *partition_table,
- struct block_count *blkcount,
- struct physical_address *phyaddr)
- {
- int i;
- int index;
- u16 partition_length;
- u16 physical_address;
- const struct partition_table *ptable;
- for (i = 0; i < f34->v7.partitions; i++) {
- index = i * 8 + 2;
- ptable = partition_table + index;
- partition_length = le16_to_cpu(ptable->partition_length);
- physical_address = le16_to_cpu(ptable->start_physical_address);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Partition entry %d: %*ph\n",
- __func__, i, sizeof(struct partition_table), ptable);
- switch (ptable->partition_id & 0x1f) {
- case CORE_CODE_PARTITION:
- blkcount->ui_firmware = partition_length;
- phyaddr->ui_firmware = physical_address;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Core code block count: %d\n",
- __func__, blkcount->ui_firmware);
- break;
- case CORE_CONFIG_PARTITION:
- blkcount->ui_config = partition_length;
- phyaddr->ui_config = physical_address;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Core config block count: %d\n",
- __func__, blkcount->ui_config);
- break;
- case DISPLAY_CONFIG_PARTITION:
- blkcount->dp_config = partition_length;
- phyaddr->dp_config = physical_address;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Display config block count: %d\n",
- __func__, blkcount->dp_config);
- break;
- case FLASH_CONFIG_PARTITION:
- blkcount->fl_config = partition_length;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Flash config block count: %d\n",
- __func__, blkcount->fl_config);
- break;
- case GUEST_CODE_PARTITION:
- blkcount->guest_code = partition_length;
- phyaddr->guest_code = physical_address;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Guest code block count: %d\n",
- __func__, blkcount->guest_code);
- break;
- case GUEST_SERIALIZATION_PARTITION:
- blkcount->pm_config = partition_length;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Guest serialization block count: %d\n",
- __func__, blkcount->pm_config);
- break;
- case GLOBAL_PARAMETERS_PARTITION:
- blkcount->bl_config = partition_length;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Global parameters block count: %d\n",
- __func__, blkcount->bl_config);
- break;
- case DEVICE_CONFIG_PARTITION:
- blkcount->lockdown = partition_length;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Device config block count: %d\n",
- __func__, blkcount->lockdown);
- break;
- }
- }
- }
- static int rmi_f34v7_read_queries_bl_version(struct f34_data *f34)
- {
- int ret;
- u8 base;
- int offset;
- u8 query_0;
- struct f34v7_query_1_7 query_1_7;
- base = f34->fn->fd.query_base_addr;
- ret = rmi_read_block(f34->fn->rmi_dev,
- base,
- &query_0,
- sizeof(query_0));
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Failed to read query 0\n", __func__);
- return ret;
- }
- offset = (query_0 & 0x7) + 1;
- ret = rmi_read_block(f34->fn->rmi_dev,
- base + offset,
- &query_1_7,
- sizeof(query_1_7));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read queries 1 to 7\n",
- __func__);
- return ret;
- }
- f34->bootloader_id[0] = query_1_7.bl_minor_revision;
- f34->bootloader_id[1] = query_1_7.bl_major_revision;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "Bootloader V%d.%d\n",
- f34->bootloader_id[1], f34->bootloader_id[0]);
- return 0;
- }
- static int rmi_f34v7_read_queries(struct f34_data *f34)
- {
- int ret;
- int i;
- u8 base;
- int offset;
- u8 *ptable;
- u8 query_0;
- struct f34v7_query_1_7 query_1_7;
- base = f34->fn->fd.query_base_addr;
- ret = rmi_read_block(f34->fn->rmi_dev,
- base,
- &query_0,
- sizeof(query_0));
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Failed to read query 0\n", __func__);
- return ret;
- }
- offset = (query_0 & 0x07) + 1;
- ret = rmi_read_block(f34->fn->rmi_dev,
- base + offset,
- &query_1_7,
- sizeof(query_1_7));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read queries 1 to 7\n",
- __func__);
- return ret;
- }
- f34->bootloader_id[0] = query_1_7.bl_minor_revision;
- f34->bootloader_id[1] = query_1_7.bl_major_revision;
- f34->v7.block_size = le16_to_cpu(query_1_7.block_size);
- f34->v7.flash_config_length =
- le16_to_cpu(query_1_7.flash_config_length);
- f34->v7.payload_length = le16_to_cpu(query_1_7.payload_length);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: f34->v7.block_size = %d\n",
- __func__, f34->v7.block_size);
- f34->v7.off.flash_status = V7_FLASH_STATUS_OFFSET;
- f34->v7.off.partition_id = V7_PARTITION_ID_OFFSET;
- f34->v7.off.block_number = V7_BLOCK_NUMBER_OFFSET;
- f34->v7.off.transfer_length = V7_TRANSFER_LENGTH_OFFSET;
- f34->v7.off.flash_cmd = V7_COMMAND_OFFSET;
- f34->v7.off.payload = V7_PAYLOAD_OFFSET;
- f34->v7.has_display_cfg = query_1_7.partition_support[1] & HAS_DISP_CFG;
- f34->v7.has_guest_code =
- query_1_7.partition_support[1] & HAS_GUEST_CODE;
- if (query_0 & HAS_CONFIG_ID) {
- u8 f34_ctrl[CONFIG_ID_SIZE];
- ret = rmi_read_block(f34->fn->rmi_dev,
- f34->fn->fd.control_base_addr,
- f34_ctrl,
- sizeof(f34_ctrl));
- if (ret)
- return ret;
- /* Eat leading zeros */
- for (i = 0; i < sizeof(f34_ctrl) - 1 && !f34_ctrl[i]; i++)
- /* Empty */;
- snprintf(f34->configuration_id, sizeof(f34->configuration_id),
- "%*phN", (int)sizeof(f34_ctrl) - i, f34_ctrl + i);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "Configuration ID: %s\n",
- f34->configuration_id);
- }
- f34->v7.partitions = 0;
- for (i = 0; i < sizeof(query_1_7.partition_support); i++)
- f34->v7.partitions += hweight8(query_1_7.partition_support[i]);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: Supported partitions: %*ph\n",
- __func__, sizeof(query_1_7.partition_support),
- query_1_7.partition_support);
- f34->v7.partition_table_bytes = f34->v7.partitions * 8 + 2;
- f34->v7.read_config_buf = devm_kzalloc(&f34->fn->dev,
- f34->v7.partition_table_bytes,
- GFP_KERNEL);
- if (!f34->v7.read_config_buf) {
- f34->v7.read_config_buf_size = 0;
- return -ENOMEM;
- }
- f34->v7.read_config_buf_size = f34->v7.partition_table_bytes;
- ptable = f34->v7.read_config_buf;
- ret = rmi_f34v7_read_partition_table(f34);
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read partition table\n",
- __func__);
- return ret;
- }
- rmi_f34v7_parse_partition_table(f34, ptable,
- &f34->v7.blkcount, &f34->v7.phyaddr);
- return 0;
- }
- static int rmi_f34v7_check_ui_firmware_size(struct f34_data *f34)
- {
- u16 block_count;
- block_count = f34->v7.img.ui_firmware.size / f34->v7.block_size;
- f34->update_size += block_count;
- if (block_count != f34->v7.blkcount.ui_firmware) {
- dev_err(&f34->fn->dev,
- "UI firmware size mismatch: %d != %d\n",
- block_count, f34->v7.blkcount.ui_firmware);
- return -EINVAL;
- }
- return 0;
- }
- static int rmi_f34v7_check_ui_config_size(struct f34_data *f34)
- {
- u16 block_count;
- block_count = f34->v7.img.ui_config.size / f34->v7.block_size;
- f34->update_size += block_count;
- if (block_count != f34->v7.blkcount.ui_config) {
- dev_err(&f34->fn->dev, "UI config size mismatch\n");
- return -EINVAL;
- }
- return 0;
- }
- static int rmi_f34v7_check_dp_config_size(struct f34_data *f34)
- {
- u16 block_count;
- block_count = f34->v7.img.dp_config.size / f34->v7.block_size;
- f34->update_size += block_count;
- if (block_count != f34->v7.blkcount.dp_config) {
- dev_err(&f34->fn->dev, "Display config size mismatch\n");
- return -EINVAL;
- }
- return 0;
- }
- static int rmi_f34v7_check_guest_code_size(struct f34_data *f34)
- {
- u16 block_count;
- block_count = f34->v7.img.guest_code.size / f34->v7.block_size;
- f34->update_size += block_count;
- if (block_count != f34->v7.blkcount.guest_code) {
- dev_err(&f34->fn->dev, "Guest code size mismatch\n");
- return -EINVAL;
- }
- return 0;
- }
- static int rmi_f34v7_check_bl_config_size(struct f34_data *f34)
- {
- u16 block_count;
- block_count = f34->v7.img.bl_config.size / f34->v7.block_size;
- f34->update_size += block_count;
- if (block_count != f34->v7.blkcount.bl_config) {
- dev_err(&f34->fn->dev, "Bootloader config size mismatch\n");
- return -EINVAL;
- }
- return 0;
- }
- static int rmi_f34v7_erase_config(struct f34_data *f34)
- {
- int ret;
- dev_info(&f34->fn->dev, "Erasing config...\n");
- init_completion(&f34->v7.cmd_done);
- switch (f34->v7.config_area) {
- case v7_UI_CONFIG_AREA:
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_UI_CONFIG);
- if (ret < 0)
- return ret;
- break;
- case v7_DP_CONFIG_AREA:
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_DISP_CONFIG);
- if (ret < 0)
- return ret;
- break;
- case v7_BL_CONFIG_AREA:
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_BL_CONFIG);
- if (ret < 0)
- return ret;
- break;
- }
- ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int rmi_f34v7_erase_guest_code(struct f34_data *f34)
- {
- int ret;
- dev_info(&f34->fn->dev, "Erasing guest code...\n");
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_GUEST_CODE);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int rmi_f34v7_erase_all(struct f34_data *f34)
- {
- int ret;
- dev_info(&f34->fn->dev, "Erasing firmware...\n");
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_UI_FIRMWARE);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
- if (ret < 0)
- return ret;
- f34->v7.config_area = v7_UI_CONFIG_AREA;
- ret = rmi_f34v7_erase_config(f34);
- if (ret < 0)
- return ret;
- if (f34->v7.has_display_cfg) {
- f34->v7.config_area = v7_DP_CONFIG_AREA;
- ret = rmi_f34v7_erase_config(f34);
- if (ret < 0)
- return ret;
- }
- if (f34->v7.new_partition_table && f34->v7.has_guest_code) {
- ret = rmi_f34v7_erase_guest_code(f34);
- if (ret < 0)
- return ret;
- }
- return 0;
- }
- static int rmi_f34v7_read_blocks(struct f34_data *f34,
- u16 block_cnt, u8 command)
- {
- int ret;
- u8 base;
- __le16 length;
- u16 transfer;
- u16 max_transfer;
- u16 remaining = block_cnt;
- u16 block_number = 0;
- u16 index = 0;
- base = f34->fn->fd.data_base_addr;
- ret = rmi_f34v7_write_partition_id(f34, command);
- if (ret < 0)
- return ret;
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.block_number,
- &block_number, sizeof(block_number));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
- __func__);
- return ret;
- }
- max_transfer = min(f34->v7.payload_length,
- (u16)(PAGE_SIZE / f34->v7.block_size));
- do {
- transfer = min(remaining, max_transfer);
- put_unaligned_le16(transfer, &length);
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.transfer_length,
- &length, sizeof(length));
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Write transfer length fail (%d remaining)\n",
- __func__, remaining);
- return ret;
- }
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, command);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
- if (ret < 0)
- return ret;
- ret = rmi_read_block(f34->fn->rmi_dev,
- base + f34->v7.off.payload,
- &f34->v7.read_config_buf[index],
- transfer * f34->v7.block_size);
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Read block failed (%d blks remaining)\n",
- __func__, remaining);
- return ret;
- }
- index += (transfer * f34->v7.block_size);
- remaining -= transfer;
- } while (remaining);
- return 0;
- }
- static int rmi_f34v7_write_f34v7_blocks(struct f34_data *f34,
- const void *block_ptr, u16 block_cnt,
- u8 command)
- {
- int ret;
- u8 base;
- __le16 length;
- u16 transfer;
- u16 max_transfer;
- u16 remaining = block_cnt;
- u16 block_number = 0;
- base = f34->fn->fd.data_base_addr;
- ret = rmi_f34v7_write_partition_id(f34, command);
- if (ret < 0)
- return ret;
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.block_number,
- &block_number, sizeof(block_number));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
- __func__);
- return ret;
- }
- if (f34->v7.payload_length > (PAGE_SIZE / f34->v7.block_size))
- max_transfer = PAGE_SIZE / f34->v7.block_size;
- else
- max_transfer = f34->v7.payload_length;
- do {
- transfer = min(remaining, max_transfer);
- put_unaligned_le16(transfer, &length);
- init_completion(&f34->v7.cmd_done);
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.transfer_length,
- &length, sizeof(length));
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Write transfer length fail (%d remaining)\n",
- __func__, remaining);
- return ret;
- }
- ret = rmi_f34v7_write_command(f34, command);
- if (ret < 0)
- return ret;
- ret = rmi_write_block(f34->fn->rmi_dev,
- base + f34->v7.off.payload,
- block_ptr, transfer * f34->v7.block_size);
- if (ret < 0) {
- dev_err(&f34->fn->dev,
- "%s: Failed writing data (%d blks remaining)\n",
- __func__, remaining);
- return ret;
- }
- ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
- if (ret < 0)
- return ret;
- block_ptr += (transfer * f34->v7.block_size);
- remaining -= transfer;
- f34->update_progress += transfer;
- f34->update_status = (f34->update_progress * 100) /
- f34->update_size;
- } while (remaining);
- return 0;
- }
- static int rmi_f34v7_write_config(struct f34_data *f34)
- {
- return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.config_data,
- f34->v7.config_block_count,
- v7_CMD_WRITE_CONFIG);
- }
- static int rmi_f34v7_write_ui_config(struct f34_data *f34)
- {
- f34->v7.config_area = v7_UI_CONFIG_AREA;
- f34->v7.config_data = f34->v7.img.ui_config.data;
- f34->v7.config_size = f34->v7.img.ui_config.size;
- f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
- return rmi_f34v7_write_config(f34);
- }
- static int rmi_f34v7_write_dp_config(struct f34_data *f34)
- {
- f34->v7.config_area = v7_DP_CONFIG_AREA;
- f34->v7.config_data = f34->v7.img.dp_config.data;
- f34->v7.config_size = f34->v7.img.dp_config.size;
- f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
- return rmi_f34v7_write_config(f34);
- }
- static int rmi_f34v7_write_guest_code(struct f34_data *f34)
- {
- return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.img.guest_code.data,
- f34->v7.img.guest_code.size /
- f34->v7.block_size,
- v7_CMD_WRITE_GUEST_CODE);
- }
- static int rmi_f34v7_write_flash_config(struct f34_data *f34)
- {
- int ret;
- f34->v7.config_area = v7_FLASH_CONFIG_AREA;
- f34->v7.config_data = f34->v7.img.fl_config.data;
- f34->v7.config_size = f34->v7.img.fl_config.size;
- f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
- if (f34->v7.config_block_count != f34->v7.blkcount.fl_config) {
- dev_err(&f34->fn->dev, "%s: Flash config size mismatch\n",
- __func__);
- return -EINVAL;
- }
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_FLASH_CONFIG);
- if (ret < 0)
- return ret;
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: Erase flash config command written\n", __func__);
- ret = rmi_f34v7_wait_for_idle(f34, F34_WRITE_WAIT_MS);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_write_config(f34);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int rmi_f34v7_write_partition_table(struct f34_data *f34)
- {
- u16 block_count;
- int ret;
- block_count = f34->v7.blkcount.bl_config;
- f34->v7.config_area = v7_BL_CONFIG_AREA;
- f34->v7.config_size = f34->v7.block_size * block_count;
- devm_kfree(&f34->fn->dev, f34->v7.read_config_buf);
- f34->v7.read_config_buf = devm_kzalloc(&f34->fn->dev,
- f34->v7.config_size, GFP_KERNEL);
- if (!f34->v7.read_config_buf) {
- f34->v7.read_config_buf_size = 0;
- return -ENOMEM;
- }
- f34->v7.read_config_buf_size = f34->v7.config_size;
- ret = rmi_f34v7_read_blocks(f34, block_count, v7_CMD_READ_CONFIG);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_erase_config(f34);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_write_flash_config(f34);
- if (ret < 0)
- return ret;
- f34->v7.config_area = v7_BL_CONFIG_AREA;
- f34->v7.config_data = f34->v7.read_config_buf;
- f34->v7.config_size = f34->v7.img.bl_config.size;
- f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
- ret = rmi_f34v7_write_config(f34);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int rmi_f34v7_write_firmware(struct f34_data *f34)
- {
- u16 blk_count;
- blk_count = f34->v7.img.ui_firmware.size / f34->v7.block_size;
- return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.img.ui_firmware.data,
- blk_count, v7_CMD_WRITE_FW);
- }
- static void rmi_f34v7_compare_partition_tables(struct f34_data *f34)
- {
- if (f34->v7.phyaddr.ui_firmware != f34->v7.img.phyaddr.ui_firmware) {
- f34->v7.new_partition_table = true;
- return;
- }
- if (f34->v7.phyaddr.ui_config != f34->v7.img.phyaddr.ui_config) {
- f34->v7.new_partition_table = true;
- return;
- }
- if (f34->v7.has_display_cfg &&
- f34->v7.phyaddr.dp_config != f34->v7.img.phyaddr.dp_config) {
- f34->v7.new_partition_table = true;
- return;
- }
- if (f34->v7.has_guest_code &&
- f34->v7.phyaddr.guest_code != f34->v7.img.phyaddr.guest_code) {
- f34->v7.new_partition_table = true;
- return;
- }
- f34->v7.new_partition_table = false;
- }
- static void rmi_f34v7_parse_img_header_10_bl_container(struct f34_data *f34,
- const void *image)
- {
- int i;
- int num_of_containers;
- unsigned int addr;
- unsigned int container_id;
- unsigned int length;
- const void *content;
- const struct container_descriptor *descriptor;
- num_of_containers = f34->v7.img.bootloader.size / 4 - 1;
- for (i = 1; i <= num_of_containers; i++) {
- addr = get_unaligned_le32(f34->v7.img.bootloader.data + i * 4);
- descriptor = image + addr;
- container_id = le16_to_cpu(descriptor->container_id);
- content = image + le32_to_cpu(descriptor->content_address);
- length = le32_to_cpu(descriptor->content_length);
- switch (container_id) {
- case BL_CONFIG_CONTAINER:
- case GLOBAL_PARAMETERS_CONTAINER:
- f34->v7.img.bl_config.data = content;
- f34->v7.img.bl_config.size = length;
- break;
- case BL_LOCKDOWN_INFO_CONTAINER:
- case DEVICE_CONFIG_CONTAINER:
- f34->v7.img.lockdown.data = content;
- f34->v7.img.lockdown.size = length;
- break;
- default:
- break;
- }
- }
- }
- static void rmi_f34v7_parse_image_header_10(struct f34_data *f34)
- {
- unsigned int i;
- unsigned int num_of_containers;
- unsigned int addr;
- unsigned int offset;
- unsigned int container_id;
- unsigned int length;
- const void *image = f34->v7.image;
- const u8 *content;
- const struct container_descriptor *descriptor;
- const struct image_header_10 *header = image;
- f34->v7.img.checksum = le32_to_cpu(header->checksum);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: f34->v7.img.checksum=%X\n",
- __func__, f34->v7.img.checksum);
- /* address of top level container */
- offset = le32_to_cpu(header->top_level_container_start_addr);
- descriptor = image + offset;
- /* address of top level container content */
- offset = le32_to_cpu(descriptor->content_address);
- num_of_containers = le32_to_cpu(descriptor->content_length) / 4;
- for (i = 0; i < num_of_containers; i++) {
- addr = get_unaligned_le32(image + offset);
- offset += 4;
- descriptor = image + addr;
- container_id = le16_to_cpu(descriptor->container_id);
- content = image + le32_to_cpu(descriptor->content_address);
- length = le32_to_cpu(descriptor->content_length);
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: container_id=%d, length=%d\n", __func__,
- container_id, length);
- switch (container_id) {
- case UI_CONTAINER:
- case CORE_CODE_CONTAINER:
- f34->v7.img.ui_firmware.data = content;
- f34->v7.img.ui_firmware.size = length;
- break;
- case UI_CONFIG_CONTAINER:
- case CORE_CONFIG_CONTAINER:
- f34->v7.img.ui_config.data = content;
- f34->v7.img.ui_config.size = length;
- break;
- case BL_CONTAINER:
- f34->v7.img.bl_version = *content;
- f34->v7.img.bootloader.data = content;
- f34->v7.img.bootloader.size = length;
- rmi_f34v7_parse_img_header_10_bl_container(f34, image);
- break;
- case GUEST_CODE_CONTAINER:
- f34->v7.img.contains_guest_code = true;
- f34->v7.img.guest_code.data = content;
- f34->v7.img.guest_code.size = length;
- break;
- case DISPLAY_CONFIG_CONTAINER:
- f34->v7.img.contains_display_cfg = true;
- f34->v7.img.dp_config.data = content;
- f34->v7.img.dp_config.size = length;
- break;
- case FLASH_CONFIG_CONTAINER:
- f34->v7.img.contains_flash_config = true;
- f34->v7.img.fl_config.data = content;
- f34->v7.img.fl_config.size = length;
- break;
- case GENERAL_INFORMATION_CONTAINER:
- f34->v7.img.contains_firmware_id = true;
- f34->v7.img.firmware_id =
- get_unaligned_le32(content + 4);
- break;
- default:
- break;
- }
- }
- }
- static int rmi_f34v7_parse_image_info(struct f34_data *f34)
- {
- const struct image_header_10 *header = f34->v7.image;
- memset(&f34->v7.img, 0x00, sizeof(f34->v7.img));
- rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
- "%s: header->major_header_version = %d\n",
- __func__, header->major_header_version);
- switch (header->major_header_version) {
- case IMAGE_HEADER_VERSION_10:
- rmi_f34v7_parse_image_header_10(f34);
- break;
- default:
- dev_err(&f34->fn->dev, "Unsupported image file format %02X\n",
- header->major_header_version);
- return -EINVAL;
- }
- if (!f34->v7.img.contains_flash_config) {
- dev_err(&f34->fn->dev, "%s: No flash config in fw image\n",
- __func__);
- return -EINVAL;
- }
- rmi_f34v7_parse_partition_table(f34, f34->v7.img.fl_config.data,
- &f34->v7.img.blkcount, &f34->v7.img.phyaddr);
- rmi_f34v7_compare_partition_tables(f34);
- return 0;
- }
- int rmi_f34v7_do_reflash(struct f34_data *f34, const struct firmware *fw)
- {
- int ret;
- f34->fn->rmi_dev->driver->set_irq_bits(f34->fn->rmi_dev,
- f34->fn->irq_mask);
- rmi_f34v7_read_queries_bl_version(f34);
- f34->v7.image = fw->data;
- f34->update_progress = 0;
- f34->update_size = 0;
- ret = rmi_f34v7_parse_image_info(f34);
- if (ret < 0)
- goto fail;
- if (!f34->v7.new_partition_table) {
- ret = rmi_f34v7_check_ui_firmware_size(f34);
- if (ret < 0)
- goto fail;
- ret = rmi_f34v7_check_ui_config_size(f34);
- if (ret < 0)
- goto fail;
- if (f34->v7.has_display_cfg &&
- f34->v7.img.contains_display_cfg) {
- ret = rmi_f34v7_check_dp_config_size(f34);
- if (ret < 0)
- goto fail;
- }
- if (f34->v7.has_guest_code && f34->v7.img.contains_guest_code) {
- ret = rmi_f34v7_check_guest_code_size(f34);
- if (ret < 0)
- goto fail;
- }
- } else {
- ret = rmi_f34v7_check_bl_config_size(f34);
- if (ret < 0)
- goto fail;
- }
- ret = rmi_f34v7_erase_all(f34);
- if (ret < 0)
- goto fail;
- if (f34->v7.new_partition_table) {
- ret = rmi_f34v7_write_partition_table(f34);
- if (ret < 0)
- goto fail;
- dev_info(&f34->fn->dev, "%s: Partition table programmed\n",
- __func__);
- }
- dev_info(&f34->fn->dev, "Writing firmware (%d bytes)...\n",
- f34->v7.img.ui_firmware.size);
- ret = rmi_f34v7_write_firmware(f34);
- if (ret < 0)
- goto fail;
- dev_info(&f34->fn->dev, "Writing config (%d bytes)...\n",
- f34->v7.img.ui_config.size);
- f34->v7.config_area = v7_UI_CONFIG_AREA;
- ret = rmi_f34v7_write_ui_config(f34);
- if (ret < 0)
- goto fail;
- if (f34->v7.has_display_cfg && f34->v7.img.contains_display_cfg) {
- dev_info(&f34->fn->dev, "Writing display config...\n");
- ret = rmi_f34v7_write_dp_config(f34);
- if (ret < 0)
- goto fail;
- }
- if (f34->v7.new_partition_table) {
- if (f34->v7.has_guest_code && f34->v7.img.contains_guest_code) {
- dev_info(&f34->fn->dev, "Writing guest code...\n");
- ret = rmi_f34v7_write_guest_code(f34);
- if (ret < 0)
- goto fail;
- }
- }
- fail:
- return ret;
- }
- static int rmi_f34v7_enter_flash_prog(struct f34_data *f34)
- {
- int ret;
- f34->fn->rmi_dev->driver->set_irq_bits(f34->fn->rmi_dev, f34->fn->irq_mask);
- ret = rmi_f34v7_read_flash_status(f34);
- if (ret < 0)
- return ret;
- if (f34->v7.in_bl_mode)
- return 0;
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_write_command(f34, v7_CMD_ENABLE_FLASH_PROG);
- if (ret < 0)
- return ret;
- ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
- if (ret < 0)
- return ret;
- return 0;
- }
- int rmi_f34v7_start_reflash(struct f34_data *f34, const struct firmware *fw)
- {
- int ret = 0;
- f34->fn->rmi_dev->driver->set_irq_bits(f34->fn->rmi_dev, f34->fn->irq_mask);
- f34->v7.config_area = v7_UI_CONFIG_AREA;
- f34->v7.image = fw->data;
- ret = rmi_f34v7_parse_image_info(f34);
- if (ret < 0)
- goto exit;
- if (!f34->v7.force_update && f34->v7.new_partition_table) {
- dev_err(&f34->fn->dev, "%s: Partition table mismatch\n",
- __func__);
- ret = -EINVAL;
- goto exit;
- }
- dev_info(&f34->fn->dev, "Firmware image OK\n");
- ret = rmi_f34v7_read_flash_status(f34);
- if (ret < 0)
- goto exit;
- if (f34->v7.in_bl_mode) {
- dev_info(&f34->fn->dev, "%s: Device in bootloader mode\n",
- __func__);
- }
- rmi_f34v7_enter_flash_prog(f34);
- return 0;
- exit:
- return ret;
- }
- int rmi_f34v7_probe(struct f34_data *f34)
- {
- int ret;
- /* Read bootloader version */
- ret = rmi_read_block(f34->fn->rmi_dev,
- f34->fn->fd.query_base_addr + V7_BOOTLOADER_ID_OFFSET,
- f34->bootloader_id,
- sizeof(f34->bootloader_id));
- if (ret < 0) {
- dev_err(&f34->fn->dev, "%s: Failed to read bootloader ID\n",
- __func__);
- return ret;
- }
- if (f34->bootloader_id[1] == '5') {
- f34->bl_version = 5;
- } else if (f34->bootloader_id[1] == '6') {
- f34->bl_version = 6;
- } else if (f34->bootloader_id[1] == 7) {
- f34->bl_version = 7;
- } else if (f34->bootloader_id[1] == 8) {
- f34->bl_version = 8;
- } else {
- dev_err(&f34->fn->dev,
- "%s: Unrecognized bootloader version: %d (%c) %d (%c)\n",
- __func__,
- f34->bootloader_id[0], f34->bootloader_id[0],
- f34->bootloader_id[1], f34->bootloader_id[1]);
- return -EINVAL;
- }
- memset(&f34->v7.blkcount, 0x00, sizeof(f34->v7.blkcount));
- memset(&f34->v7.phyaddr, 0x00, sizeof(f34->v7.phyaddr));
- init_completion(&f34->v7.cmd_done);
- ret = rmi_f34v7_read_queries(f34);
- if (ret < 0)
- return ret;
- f34->v7.force_update = true;
- return 0;
- }
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