in hid-picolcd_debugfs.c [384:639]
void picolcd_debug_out_report(struct picolcd_data *data,
struct hid_device *hdev, struct hid_report *report)
{
u8 *raw_data;
int raw_size = (report->size >> 3) + 1;
char *buff;
#define BUFF_SZ 256
/* Avoid unnecessary overhead if debugfs is disabled */
if (list_empty(&hdev->debug_list))
return;
buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
if (!buff)
return;
raw_data = hid_alloc_report_buf(report, GFP_ATOMIC);
if (!raw_data) {
kfree(buff);
return;
}
snprintf(buff, BUFF_SZ, "\nout report %d (size %d) = ",
report->id, raw_size);
hid_debug_event(hdev, buff);
raw_data[0] = report->id;
hid_output_report(report, raw_data);
dump_buff_as_hex(buff, BUFF_SZ, raw_data, raw_size);
hid_debug_event(hdev, buff);
switch (report->id) {
case REPORT_LED_STATE:
/* 1 data byte with GPO state */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LED_STATE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tGPO state: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_BRIGHTNESS:
/* 1 data byte with brightness */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_BRIGHTNESS", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tBrightness: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_CONTRAST:
/* 1 data byte with contrast */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_CONTRAST", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tContrast: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_RESET:
/* 2 data bytes with reset duration in ms */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_RESET", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tDuration: 0x%02x%02x (%dms)\n",
raw_data[2], raw_data[1], raw_data[2] << 8 | raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_LCD_CMD:
/* 63 data bytes with LCD commands */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
hid_debug_event(hdev, buff);
/* TODO: format decoding */
break;
case REPORT_LCD_DATA:
/* 63 data bytes with LCD data */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
/* TODO: format decoding */
hid_debug_event(hdev, buff);
break;
case REPORT_LCD_CMD_DATA:
/* 63 data bytes with LCD commands and data */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
/* TODO: format decoding */
hid_debug_event(hdev, buff);
break;
case REPORT_EE_READ:
/* 3 data bytes with read area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EE_READ", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
break;
case REPORT_EE_WRITE:
/* 3+1..20 data bytes with write area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EE_WRITE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[3] + 4 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_ERASE_MEMORY:
case REPORT_BL_ERASE_MEMORY:
/* 3 data bytes with pointer inside erase block */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_ERASE_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
break;
case 3:
snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_READ_MEMORY:
case REPORT_BL_READ_MEMORY:
/* 4 data bytes with read area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_READ_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
break;
case 3:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_WRITE_MEMORY:
case REPORT_BL_WRITE_MEMORY:
/* 4+1..32 data bytes with write adrea description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_WRITE_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[3] + 4 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
case 3:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
hid_debug_event(hdev, buff);
if (raw_data[4] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[4] + 5 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_SPLASH_RESTART:
/* TODO */
break;
case REPORT_EXIT_KEYBOARD:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EXIT_KEYBOARD", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
raw_data[1] | (raw_data[2] << 8),
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_VERSION:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_DEVID:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_DEVID", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_SPLASH_SIZE:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_SPLASH_SIZE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_HOOK_VERSION:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_HOOK_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_EXIT_FLASHER:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
raw_data[1] | (raw_data[2] << 8),
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
default:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"<unknown>", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
}
wake_up_interruptible(&hdev->debug_wait);
kfree(raw_data);
kfree(buff);
}