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lib: Remove state from fp_img_driver activate handler 

The state was always AWAIT_FINGER and it was never used by any driver
(except for error checking). So remove it, in particular as a correct
state change will be done after activation anyway.

The only driver with code that actually did anything based on this was
the URU4000 driver. However, all it did was an explicit state change
execution. This is not necessary, as the state_change handler is called
anyway (i.e. we now only write the AWAIT_FINGER register once rather
than twice).

Manual changes plus:

@ init @
identifier driver_name;
identifier activate_func;
@@
struct fp_img_driver driver_name = {
    ...,
    .activate = activate_func,
    ...,
};
@ remove_arg @
identifier dev;
identifier state;
identifier init.activate_func;
@@
activate_func (
	struct fp_img_dev *dev
-	, enum fp_imgdev_state state
	)
{
	<...
-	if (state != IMGDEV_STATE_AWAIT_FINGER_ON) { ... }
	...>
}
This commit is contained in:
Benjamin Berg 2019-06-18 18:12:28 +02:00
parent 3b32baccf6
commit 4cec28416e
20 changed files with 22 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libfprint/drivers/aes1610.c
View File

@ -749,7 +749,7 @@ static void activate_sm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_d
fpi_ssm_free(ssm);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct aes1610_dev *aesdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,

2
libfprint/drivers/aes2501.c
View File

@ -792,7 +792,7 @@ static void activate_sm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_d
fpi_ssm_free(ssm);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct aes2501_dev *aesdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,

2
libfprint/drivers/aes2550.c
View File

@ -541,7 +541,7 @@ static void activate_sm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_d
fpi_ssm_free(ssm);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,
ACTIVATE_NUM_STATES, dev);

2
libfprint/drivers/aes3k.c
View File

@ -137,7 +137,7 @@ static void init_reqs_cb(struct fp_img_dev *dev, int result, void *user_data)
do_capture(dev);
}
int aes3k_dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
int aes3k_dev_activate(struct fp_img_dev *dev)
{
struct aes3k_dev *aesdev = FP_INSTANCE_DATA(FP_DEV(dev));
aes_write_regv(dev, aesdev->init_reqs, aesdev->init_reqs_len, init_reqs_cb, NULL);

2
libfprint/drivers/aes3k.h
View File

@ -52,7 +52,7 @@ struct aes3k_dev {
};
int aes3k_dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state);
int aes3k_dev_activate(struct fp_img_dev *dev);
void aes3k_dev_deactivate(struct fp_img_dev *dev);
#endif

2
libfprint/drivers/aesx660.c
View File

@ -589,7 +589,7 @@ static void activate_sm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_d
start_finger_detection(dev);
}
int aesX660_dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
int aesX660_dev_activate(struct fp_img_dev *dev)
{
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,
ACTIVATE_NUM_STATES, dev);

2
libfprint/drivers/aesx660.h
View File

@ -116,7 +116,7 @@ static const unsigned char calibrate_cmd[] = {
0x06,
};
int aesX660_dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state);
int aesX660_dev_activate(struct fp_img_dev *dev);
void aesX660_dev_deactivate(struct fp_img_dev *dev);
#endif

2
libfprint/drivers/elan.c
View File

@ -874,7 +874,7 @@ static void dev_deinit(struct fp_img_dev *dev)
fpi_imgdev_close_complete(dev);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
G_DEBUG_HERE();
elan_activate(dev);

8
libfprint/drivers/etes603.c
View File

@ -1390,19 +1390,13 @@ static void m_init_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data)
fpi_ssm_free(ssm);
}
static int dev_activate(struct fp_img_dev *idev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *idev)
{
struct etes603_dev *dev = FP_INSTANCE_DATA(FP_DEV(idev));
fpi_ssm *ssm;
g_assert(dev);
if (state != IMGDEV_STATE_AWAIT_FINGER_ON) {
fp_err("The driver is in an unexpected state: %d.", state);
fpi_imgdev_activate_complete(idev, 1);
return -1;
}
/* Reset info and data */
dev->is_active = TRUE;

2
libfprint/drivers/upeksonly.c
View File

@ -1268,7 +1268,7 @@ static void initsm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data)
fpi_ssm_start(sdev->loopsm, loopsm_complete);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct sonly_dev *sdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = NULL;

2
libfprint/drivers/upektc.c
View File

@ -377,7 +377,7 @@ static void start_capture(struct fp_img_dev *dev)
fpi_ssm_start(ssm, capture_sm_complete);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct upektc_dev *upekdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,

2
libfprint/drivers/upektc_img.c
View File

@ -567,7 +567,7 @@ static void activate_sm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_d
start_capture(dev);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct upektc_img_dev *upekdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), activate_run_state,

13
libfprint/drivers/uru4000.c
View File

@ -1161,20 +1161,10 @@ static void activate_initsm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *us
int r = fpi_ssm_get_error(ssm);
fpi_ssm_free(ssm);
if (r) {
fpi_imgdev_activate_complete(dev, r);
return;
}
r = execute_state_change(dev);
fpi_imgdev_activate_complete(dev, r);
}
/* FIXME: having state parameter here is kinda useless, will we ever
* see a scenario where the parameter is useful so early on in the activation
* process? asynchronity means that it'll only be used in a later function
* call. */
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct uru4k_dev *urudev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm;
@ -1185,7 +1175,6 @@ static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
return r;
urudev->scanpwr_irq_timeouts = 0;
urudev->activate_state = state;
ssm = fpi_ssm_new(FP_DEV(dev), init_run_state, INIT_NUM_STATES, dev);
fpi_ssm_start(ssm, activate_initsm_complete);
return 0;

2
libfprint/drivers/vcom5s.c
View File

@ -302,7 +302,7 @@ static void loopsm_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data)
fpi_imgdev_deactivate_complete(dev);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct v5s_dev *vdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm = fpi_ssm_new(FP_DEV(dev), loop_run_state,

2
libfprint/drivers/vfs0050.c
View File

@ -684,7 +684,7 @@ static void dev_activate_callback(fpi_ssm *ssm, struct fp_dev *_dev, void *user_
}
/* Activate device */
static int dev_activate(struct fp_img_dev *idev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *idev)
{
struct vfs_dev_t *vdev = FP_INSTANCE_DATA(FP_DEV(idev));

2
libfprint/drivers/vfs101.c
View File

@ -1424,7 +1424,7 @@ static void m_init_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data)
}
/* Activate device */
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct vfs101_dev *vdev = FP_INSTANCE_DATA(FP_DEV(dev));
fpi_ssm *ssm;

2
libfprint/drivers/vfs301.c
View File

@ -191,7 +191,7 @@ static void m_init_complete(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data)
}
/* Activate device */
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
fpi_ssm *ssm;

2
libfprint/drivers/vfs5011.c
View File

@ -846,7 +846,7 @@ static void start_scan(struct fp_img_dev *dev)
fp_dbg("ssm done, getting out");
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *dev)
{
struct vfs5011_data *data;

2
libfprint/fpi-core.h
View File

@ -110,7 +110,7 @@ struct fp_img_driver {
/* Device operations */
int (*open)(struct fp_img_dev *dev, unsigned long driver_data);
void (*close)(struct fp_img_dev *dev);
int (*activate)(struct fp_img_dev *dev, enum fp_imgdev_state state);
int (*activate)(struct fp_img_dev *dev);
int (*change_state)(struct fp_img_dev *dev, enum fp_imgdev_state state);
void (*deactivate)(struct fp_img_dev *dev);
};

6
libfprint/fpi-dev-img.c
View File

@ -533,14 +533,14 @@ int fpi_imgdev_get_img_height(struct fp_img_dev *imgdev)
return height;
}
static int dev_activate(struct fp_img_dev *imgdev, enum fp_imgdev_state state)
static int dev_activate(struct fp_img_dev *imgdev)
{
struct fp_driver *drv = FP_DEV(imgdev)->drv;
struct fp_img_driver *imgdrv = fpi_driver_to_img_driver(drv);
if (!imgdrv->activate)
return 0;
return imgdrv->activate(imgdev, state);
return imgdrv->activate(imgdev);
}
static void dev_deactivate(struct fp_img_dev *imgdev)
@ -562,7 +562,7 @@ static int generic_acquire_start(struct fp_dev *dev, int action)
imgdev->action_state = IMG_ACQUIRE_STATE_ACTIVATING;
imgdev->enroll_stage = 0;
r = dev_activate(imgdev, IMGDEV_STATE_AWAIT_FINGER_ON);
r = dev_activate(imgdev);
if (r < 0)
fp_err("activation failed with error %d", r);