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hidpp20: use the internal list of features instead of asking the device

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We already know the indexes in the table, so there is no point in making
a round trip to the device.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
This commit is contained in:
Benjamin Tissoires
2015-10-20 16:46:09 -04:00
parent 43ac20de69
commit dcf0a0e89d
1 changed files with 58 additions and 59 deletions
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117
src/hidpp20.c
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@@ -180,6 +180,29 @@ hidpp20_get_unaligned_u16(uint8_t *buf)
#define CMD_ROOT_GET_FEATURE 0x00
#define CMD_ROOT_GET_PROTOCOL_VERSION 0x10
/**
* Returns the feature index or 0x00 if it is not found.
*/
static uint8_t
hidpp_root_get_feature_idx(struct hidpp20_device *device,
uint16_t feature)
{
unsigned i;
/* error or not, we should not ask for feature 0 */
if (feature == 0x0000)
return 0;
/* feature 0x0000 is always at 0 */
for (i = 1; i < device->feature_count; i++) {
if (device->feature_list[i].feature == feature)
return i;
}
return 0;
}
int
hidpp_root_get_feature(struct hidpp20_device *device,
uint16_t feature,
@@ -354,7 +377,7 @@ hidpp20_batterylevel_get_battery_level(struct hidpp20_device *device,
uint16_t *level,
uint16_t *next_level)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
union hidpp20_message msg = {
.msg.report_id = REPORT_ID_LONG,
.msg.device_idx = device->index,
@@ -362,13 +385,10 @@ hidpp20_batterylevel_get_battery_level(struct hidpp20_device *device,
};
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_BATTERY_LEVEL_STATUS,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_BATTERY_LEVEL_STATUS);
if (feature_index == 0)
return -ENOTSUP;
msg.msg.sub_id = feature_index;
@@ -436,19 +456,16 @@ int
hidpp20_kbd_reprogrammable_keys_get_controls(struct hidpp20_device *device,
struct hidpp20_control_id **controls_list)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
struct hidpp20_control_id *c_list, *control;
uint8_t num_controls;
unsigned i;
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_KBD_REPROGRAMMABLE_KEYS,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_KBD_REPROGRAMMABLE_KEYS);
if (feature_index == 0)
return -ENOTSUP;
rc = hidpp20_kbd_reprogrammable_keys_get_count(device, feature_index);
if (rc < 0)
@@ -577,20 +594,17 @@ hidpp20_special_keys_buttons_get_reporting(struct hidpp20_device *device,
int hidpp20_special_key_mouse_get_controls(struct hidpp20_device *device,
struct hidpp20_control_id **controls_list)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
struct hidpp20_control_id *c_list, *control;
uint8_t num_controls;
unsigned i;
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_SPECIAL_KEYS_BUTTONS,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_SPECIAL_KEYS_BUTTONS);
if (feature_index == 0)
return -ENOTSUP;
rc = hidpp20_special_keys_buttons_get_count(device, feature_index);
if (rc < 0)
@@ -650,7 +664,7 @@ int
hidpp20_special_key_mouse_set_control(struct hidpp20_device *device,
struct hidpp20_control_id *control)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
union hidpp20_message msg = {
.msg.report_id = REPORT_ID_LONG,
.msg.device_idx = device->index,
@@ -661,16 +675,11 @@ hidpp20_special_key_mouse_set_control(struct hidpp20_device *device,
.msg.parameters[3] = control->reporting.remapped >> 8,
.msg.parameters[4] = control->reporting.remapped & 0xff,
};
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_SPECIAL_KEYS_BUTTONS,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_SPECIAL_KEYS_BUTTONS);
if (feature_index == 0)
return -ENOTSUP;
msg.msg.sub_id = feature_index;
if (control->reporting.divert)
@@ -694,7 +703,7 @@ hidpp20_mousepointer_get_mousepointer_info(struct hidpp20_device *device,
uint16_t *resolution,
uint8_t *flags)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
union hidpp20_message msg = {
.msg.report_id = REPORT_ID_LONG,
.msg.device_idx = device->index,
@@ -702,13 +711,10 @@ hidpp20_mousepointer_get_mousepointer_info(struct hidpp20_device *device,
};
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_MOUSE_POINTER_BASIC,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_MOUSE_POINTER_BASIC);
if (feature_index == 0)
return -ENOTSUP;
msg.msg.sub_id = feature_index;
@@ -817,20 +823,16 @@ hidpp20_adjustable_dpi_get_dpi(struct hidpp20_device *device,
int hidpp20_adjustable_dpi_get_sensors(struct hidpp20_device *device,
struct hidpp20_sensor **sensors_list)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
struct hidpp20_sensor *s_list, *sensor;
uint8_t num_sensors;
unsigned i;
int rc;
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_ADJUSTABLE_DPI,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_ADJUSTABLE_DPI);
if (feature_index == 0)
return -ENOTSUP;
rc = hidpp20_adjustable_dpi_get_count(device, feature_index);
if (rc < 0)
@@ -877,7 +879,7 @@ err:
int hidpp20_adjustable_dpi_set_sensor_dpi(struct hidpp20_device *device,
struct hidpp20_sensor *sensor, uint16_t dpi)
{
uint8_t feature_index, feature_type, feature_version;
uint8_t feature_index;
uint16_t returned_parameters;
int rc;
union hidpp20_message msg = {
@@ -889,13 +891,10 @@ int hidpp20_adjustable_dpi_set_sensor_dpi(struct hidpp20_device *device,
.msg.parameters[2] = dpi & 0xff,
};
rc = hidpp_root_get_feature(device,
HIDPP_PAGE_ADJUSTABLE_DPI,
&feature_index,
&feature_type,
&feature_version);
if (rc)
return rc;
feature_index = hidpp_root_get_feature_idx(device,
HIDPP_PAGE_ADJUSTABLE_DPI);
if (feature_index == 0)
return -ENOTSUP;
msg.msg.sub_id = feature_index;