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linux/drivers/input/rmi4/rmi_f34v7.c
Jason A. Donenfeld a6977d758f Input: synaptics-rmi4 - support bootloader v8 in f34v7 
With the recent addition of the F3A support, we can now accept
bootloader v8, which will help support recent Thinkpads.

Acked-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20200930225046.173190-2-Jason@zx2c4.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-10-04 19:51:45 -07:00

1390 lines
33 KiB
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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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