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hidpp20: fall back to firmware profiles on a profile by profile basis

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currently if any use profile is not valid we fallback to the firmware
profiles. this is quite annoying because the user might have only one
valid profile. this patch will keep valid profiles and only fallback to
firmware profiles on a profile by profile basis.

Signed-off-by: Filipe Laíns <lains@archlinux.org>
This commit is contained in:
Filipe Laíns
2019-07-09 14:53:32 +01:00
committed by Filipe Laíns
parent 412f3fef87
commit b31a8c5355
1 changed files with 58 additions and 78 deletions
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136
src/hidpp20.c
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@@ -1464,6 +1464,14 @@ int hidpp20_adjustable_report_rate_get_report_rate_list(struct hidpp20_device *d
#define HIDPP20_ONBOARD_PROFILES_PROFILE_TYPE_G900 0x03
#define HIDPP20_ONBOARD_PROFILES_MACRO_TYPE_G402 0x01
#define HIDPP20_USER_PROFILES_G402 0x0000
#define HIDPP20_ROM_PROFILES_G402 0x0100
#define HIDPP20_PROFILE_DIR_END1 0
#define HIDPP20_PROFILE_DIR_END2 1
#define HIDPP20_PROFILE_DIR_END_VALUE 0xFF
#define HIDPP20_PROFILE_DIR_ENABLED 2
union hidpp20_internal_profile {
uint8_t data[HIDPP20_PROFILE_SIZE];
struct {
@@ -2384,16 +2392,17 @@ hidpp20_onboard_profiles_parse_profile(struct hidpp20_device *device,
return 0;
}
static int
hidpp20_onboard_profiles_parse(struct hidpp20_device *device,
struct hidpp20_profiles *profiles,
uint16_t dict_address,
bool check_crc)
int
hidpp20_onboard_profiles_initialize(struct hidpp20_device *device,
struct hidpp20_profiles *profiles)
{
_cleanup_free_ uint8_t *data = NULL;
int rc;
unsigned i;
bool crc_valid;
bool read_userdata = true;
assert(profiles);
for (i = 0; i < profiles->num_profiles; i++) {
profiles->profiles[i].address = 0;
@@ -2403,7 +2412,7 @@ hidpp20_onboard_profiles_parse(struct hidpp20_device *device,
data = hidpp20_onboard_profiles_allocate_sector(profiles);
rc = hidpp20_onboard_profiles_read_sector(device,
dict_address,
HIDPP20_USER_PROFILES_G402,
profiles->sector_size,
data);
if (rc < 0)
@@ -2412,92 +2421,63 @@ hidpp20_onboard_profiles_parse(struct hidpp20_device *device,
crc_valid = hidpp20_onboard_profiles_is_sector_valid(device,
profiles->sector_size,
data);
if (crc_valid || !check_crc) {
if (crc_valid) {
for (i = 0; i < profiles->num_profiles; i++) {
uint8_t *d = data + 4 * i;
if (d[0] == 0xFF && d[1] == 0xFF)
if (d[HIDPP20_PROFILE_DIR_END1] == HIDPP20_PROFILE_DIR_END_VALUE &&
d[HIDPP20_PROFILE_DIR_END2] == HIDPP20_PROFILE_DIR_END_VALUE)
break;
profiles->profiles[i].address = hidpp_get_unaligned_be_u16(d);
if (profiles->profiles[i].address != (dict_address | (i + 1)))
/* profile address sanity check */
if (profiles->profiles[i].address != (HIDPP20_USER_PROFILES_G402 | (i + 1)))
hidpp_log_info(&device->base,
"profile %d: error in the address: 0x%04x instead of 0x%04x\n",
i + 1,
profiles->profiles[i].address,
dict_address | (i + 1));
profiles->profiles[i].enabled = !!d[2];
"profile %d: error in the address: 0x%04x instead of 0x%04x\n",
i + 1,
profiles->profiles[i].address,
HIDPP20_USER_PROFILES_G402 | (i + 1));
profiles->profiles[i].enabled = !!d[HIDPP20_PROFILE_DIR_ENABLED];
}
} else {
hidpp_log_debug(device, "Profile directory has an invalid CRC... Reading ROM profiles.\n");
read_userdata = false;
}
/*
* Even if the crc is wrong, we still fetch all the profiles, so as
* to have the current stored values if some profiles are legitimate.
*/
for (i = 0; i < profiles->num_profiles; i++) {
if (profiles->profiles[i].address == 0x0000) {
switch (dict_address) {
case 0x0000:
profiles->profiles[i].address = i + 1;
break;
case 0x0100:
if (i >= profiles->num_rom_profiles) {
profiles->profiles[i].address = dict_address | profiles->num_rom_profiles;
} else {
profiles->profiles[i].address = dict_address | (i + 1);
}
break;
default:
hidpp_log_error(&device->base,
"this should never happen: dict address is 0x%04x\n",
dict_address);
return -EINVAL;
}
for (i = 0; i < profiles->num_profiles; i++) {
if (read_userdata) {
hidpp_log_debug(device, "Parsing profile %u\n", i);
rc = hidpp20_onboard_profiles_parse_profile(device,
profiles,
i,
true);
/* on fail to read the user profile fallback to the default profile */
if (rc)
hidpp_log_debug("Profile %u is bad. Falling back to the ROM settings.\n", i);
else
continue;
}
/* the number of rom profiles can be different than the number of user profiles
so we if there are not enough rom profiles to populate all the user profiles
we just use the first rom profile */
if (i + 1 > profiles->num_rom_profiles)
profiles->profiles[i].address = HIDPP20_ROM_PROFILES_G402 + 1;
else
profiles->profiles[i].address = HIDPP20_ROM_PROFILES_G402 + i + 1;
rc = hidpp20_onboard_profiles_parse_profile(device,
profiles,
i,
check_crc);
if (rc == -EAGAIN)
crc_valid = false;
profiles,
i,
false);
if (rc < 0)
return rc;
}
if (check_crc && !crc_valid)
return -EAGAIN;
return 0;
}
int
hidpp20_onboard_profiles_initialize(struct hidpp20_device *device,
struct hidpp20_profiles *profiles)
{
int rc;
assert(profiles);
rc = hidpp20_onboard_profiles_parse(device, profiles, 0x0000, true);
if (rc == 0)
return profiles->num_profiles;
if (rc != -EAGAIN) {
/* something went wrong */
return rc;
}
/*
* One of the used sector has a bad crc, the device is using the ROM
* profiles.
*/
hidpp_log_debug(&device->base, "device is using ROM settings\n");
rc = hidpp20_onboard_profiles_parse(device, profiles, 0x0100, false);
if (rc < 0)
return rc;
hidpp_log_debug(&device->base, "ROM settings loaded\n");
return profiles->num_profiles;
}