#define IQS5XX_PROD_NUM_IQS550 40
#define IQS5XX_PROD_NUM_IQS572 58
#define IQS5XX_PROD_NUM_IQS525 52
-#define IQS5XX_PROJ_NUM_A000 0
-#define IQS5XX_PROJ_NUM_B000 15
-#define IQS5XX_MAJOR_VER_MIN 2
#define IQS5XX_SHOW_RESET BIT(7)
#define IQS5XX_ACK_RESET BIT(7)
#define IQS5XX_BL_CMD_CRC 0x03
#define IQS5XX_BL_BLK_LEN_MAX 64
#define IQS5XX_BL_ID 0x0200
-#define IQS5XX_BL_STATUS_AVAIL 0xA5
#define IQS5XX_BL_STATUS_NONE 0xEE
#define IQS5XX_BL_CRC_PASS 0x00
#define IQS5XX_BL_CRC_FAIL 0x01
* the missing zero is prepended).
*/
buf[0] = 0;
- dev_id_info = (struct iqs5xx_dev_id_info *)&buf[(buf[1] > 0) ? 0 : 1];
+ dev_id_info = (struct iqs5xx_dev_id_info *)&buf[buf[1] ? 0 : 1];
switch (be16_to_cpu(dev_id_info->prod_num)) {
case IQS5XX_PROD_NUM_IQS550:
return -EINVAL;
}
- switch (be16_to_cpu(dev_id_info->proj_num)) {
- case IQS5XX_PROJ_NUM_A000:
- dev_err(&client->dev, "Unsupported project number: %u\n",
- be16_to_cpu(dev_id_info->proj_num));
- return iqs5xx_bl_open(client);
- case IQS5XX_PROJ_NUM_B000:
- break;
- default:
- dev_err(&client->dev, "Unrecognized project number: %u\n",
- be16_to_cpu(dev_id_info->proj_num));
- return -EINVAL;
- }
-
- if (dev_id_info->major_ver < IQS5XX_MAJOR_VER_MIN) {
- dev_err(&client->dev, "Unsupported major version: %u\n",
- dev_id_info->major_ver);
+ /*
+ * With the product number recognized yet shifted by one byte, open the
+ * bootloader and wait for user space to convert the A000 device into a
+ * B000 device via new firmware.
+ */
+ if (buf[1]) {
+ dev_err(&client->dev, "Opening bootloader for A000 device\n");
return iqs5xx_bl_open(client);
}
- switch (dev_id_info->bl_status) {
- case IQS5XX_BL_STATUS_AVAIL:
- case IQS5XX_BL_STATUS_NONE:
- break;
- default:
- dev_err(&client->dev,
- "Unrecognized bootloader status: 0x%02X\n",
- dev_id_info->bl_status);
- return -EINVAL;
- }
-
error = iqs5xx_read_burst(client, IQS5XX_EXP_FILE,
iqs5xx->exp_file, sizeof(iqs5xx->exp_file));
if (error)