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hidraw: annotate HID++ 2.0 errors and IRoot feature

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This commit is contained in:
Peter Wu
2013-04-30 17:39:23 +02:00
parent 793070ba82
commit cfbf072a9c
1 changed files with 38 additions and 3 deletions
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41
hidraw.c
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@@ -51,6 +51,7 @@ struct report {
} __attribute__((__packed__));
static const char * report_types[0x100] = {
[0x00] = "_HIDPP20", // fake type
// 0x00 - 0x3F HID reports
[0x01] = "KEYBOARD",
[0x02] = "MOUSE",
@@ -76,6 +77,7 @@ static const char * report_types[0x100] = {
[0x82] = "SET_LONG_REG",
[0x83] = "GET_LONG_REG",
[0x8F] = "_ERROR_MSG",
[0xFF] = "_HIDPP20_ERROR_MSG",
};
static const char * error_messages[0x100] = {
@@ -95,6 +97,20 @@ static const char * error_messages[0x100] = {
[0x0d] = "WRONG_PIN_CODE",
};
// I don't know the upper bound, perhaps 0x10 is enough
static const char * error_messages_hidpp20[0x100] = {
[0x00] = "NoError",
[0x01] = "Unknown",
[0x02] = "InvalidArgument",
[0x03] = "OutOfRange",
[0x04] = "HWError",
[0x05] = "Logitech internal",
[0x06] = "INVALID_FEATURE_INDEX",
[0x07] = "INVALID_FUNCTION_ID",
[0x08] = "Busy",
[0x09] = "Unsupported",
};
// everything with a '?' is guessed
static const char * registers[0x100] = {
[0x00] = "ENABLED_NOTIFS",
@@ -129,6 +145,10 @@ const char *error_str(u8 er) {
const char * str = error_messages[er];
return str ? str : "";
}
const char *error_str_hidpp20(u8 er) {
const char * str = error_messages_hidpp20[er];
return str ? str : "";
}
const char *register_str(u8 reg) {
const char * str = registers[reg];
return str ? str : "";
@@ -138,7 +158,25 @@ void process_msg_payload(struct report *r, u8 data_len) {
u8 pos, i;
u8 * bytes = (u8 *) &r->s;
pos = 0; // nothing has been processed
switch (r->sub_id) {
case 0x00: // assume HID++ 2.0 request/response for feature IRoot
if (data_len == 4 || data_len == 17) {
printf("func=%X ", bytes[0] >> 4);
printf("swId=%X ", bytes[0] & 0xF);
pos = 1;
}
break;
case 0xFF: // assume HID++ 2.0 error
if (data_len == 17) {
printf("feat=%X ", bytes[0]);
printf("func=%X ", bytes[1] >> 4);
printf("swId=%X ", bytes[1] & 0xF);
printf("err=%02X %s ", bytes[2], error_str_hidpp20(bytes[2]));
pos = 3;
}
break;
case 0x8F: // error
// TODO: length check
printf("SubID=%02X %s ", bytes[0], report_type_str(bytes[0]));
@@ -153,9 +191,6 @@ void process_msg_payload(struct report *r, u8 data_len) {
printf("reg=%02X %s ", bytes[0], register_str(bytes[0]));
pos = 1;
break;
default:
pos = 0; // nothing has been processed
break;
}
if (pos < data_len) {