Hi Dmitry:
>static int raydium_i2c_read_message(struct i2c_client *client,
> u32 addr, void *data, size_t len)
>{
> __le32 le_addr;
> size_t xfer_len;
> u32 shift_addr;
> int error;
>
> while (len) {
> xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE);
>
> le_addr = cpu_to_le32(addr);
>
> shift_addr = le_addr >> 8;/*send the first 3rd byte addr.*/
Drop this. Change touch MCU setting to solve this issue
> error = raydium_i2c_send(client, RM_CMD_BANK_SWITCH,
> &shift_addr, sizeof(le_addr));
> if (!error)/*read from last byte addr.*/
> error = raydium_i2c_read(client, le_addr & 0xff,
> data, xfer_len);
> if (error)
> return error;
>
> len -= xfer_len;
> data += xfer_len;
> addr += xfer_len;
> }
>
> return 0;
>}
modify as below.
static int raydium_i2c_read_message(struct i2c_client *client,
u32 addr, void *data, size_t len)
{
__le32 le_addr;
size_t xfer_len;
int error;
while (len) {
xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE);
le_addr = cpu_to_le32(addr);
error = raydium_i2c_send(client, RM_CMD_BANK_SWITCH,
&le_addr, sizeof(le_addr));
if (!error)/*read from last byte addr.*/
error = raydium_i2c_read(client, le_addr & 0xff,
data, xfer_len);
if (error)
return error;
len -= xfer_len;
data += xfer_len;
addr += xfer_len;
}
return 0;
}
>
>>> static int raydium_i2c_fw_write_page(struct i2c_client *client,
>>> u16 page_idx, const void *data, size_t len)
>>> {
>>> u8 buf[RM_BL_WRT_LEN];
>>> u8 pkg_idx = 1;
>>> size_t xfer_len;
>>> int error;
>>>
>>> while (len) {
>>> xfer_len = min_t(size_t, len, RM_BL_WRT_PKG_SIZE);
>>> buf[BL_HEADER] = RM_CMD_BOOT_PAGE_WRT;
>>> /*FIXME,Touch MCU need zero index as start page*/
>>> buf[BL_PAGE_STR] = page_idx ? 0xff : 0;
>>> buf[BL_PKG_IDX] = pkg_idx++;
>>>
>>> memcpy(&buf[BL_DATA_STR], data, xfer_len);
>>>
>>> if (len < RM_BL_WRT_PKG_SIZE) {
>>> buf[BL_PKG_IDX] = 4;
Drop this one. Modfy boot loader firmware to meet this issue. So final function
as below.
static int raydium_i2c_fw_write_page(struct i2c_client *client,
u16 page_idx, const void *data, size_t len)
{
u8 buf[RM_BL_WRT_LEN];
u8 pkg_idx = 1;
size_t xfer_len;
int error;
while (len) {
xfer_len = min_t(size_t, len, RM_BL_WRT_PKG_SIZE);
buf[BL_HEADER] = RM_CMD_BOOT_PAGE_WRT;
/*FIXME,Touch MCU need zero index as start page*/
buf[BL_PAGE_STR] = page_idx ? 0xff : 0;
buf[BL_PKG_IDX] = pkg_idx++;
memcpy(&buf[BL_DATA_STR], data, xfer_len);
if (len < RM_BL_WRT_PKG_SIZE) {
memset(buf + BL_DATA_STR + xfer_len, 0xff,
RM_BL_WRT_PKG_SIZE - xfer_len);
}
error = raydium_i2c_write_object(client, buf, RM_BL_WRT_LEN,
RAYDIUM_WAIT_READY);
if (error) {
dev_err(&client->dev,
"page write command failed for page %d, chunk
%d: %d\n",
page_idx, pkg_idx, error);
return error;
}
data += xfer_len;
len -= xfer_len;
}
return error;
}
Otherwise, Do you have any concern about my patch? If not, I'll send new patch
soon.
Thanks.
Jeffrey
