toshiba_acpi: Refactor *{get, set} functions return value
This patch refactors the return value of the driver *{get, set}
functions, since the driver default error value is -EIO.
All the functions now check for TOS_FAILURE, TOS_NOT_SUPPORTED and
TOS_SUCCESS.
On TOS_FAILURE a pr_err message is printed informing the user of the
error (no change was made to this, except the check was added to the
functions not checking for this).
On TOS_NOT_SUPPORTED we now return -ENODEV immediately (some
functions were returning -EIO and some other were not checking)
On TOS_SUCCESS* we now return 0 (as a side effect, a new success value
was added, since some functions return one instead of zero to
indicate success).
As a special case, the LED functions now check for *FAILURE on
*set, and check for TOS_FAILURE and TOS_SUCCESS on *get with their
"default" return value set to LED_OFF.
Also the {lcd, video}_proc* functions were adapted to reflect these
changes to their parent HCI functions.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Azael Avalos
Darren Hart
parent
0409cbced3
commit
e1a949c1b9
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@ -93,6 +93,7 @@ MODULE_LICENSE("GPL");
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/* Return codes */
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#define TOS_SUCCESS 0x0000
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#define TOS_SUCCESS2 0x0001
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#define TOS_OPEN_CLOSE_OK 0x0044
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#define TOS_FAILURE 0x1000
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#define TOS_NOT_SUPPORTED 0x8000
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@ -469,7 +470,8 @@ static void toshiba_illumination_set(struct led_classdev *cdev,
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{
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struct toshiba_acpi_dev *dev = container_of(cdev,
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struct toshiba_acpi_dev, led_dev);
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u32 state, result;
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u32 result;
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u32 state;
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/* First request : initialize communication. */
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if (!sci_open(dev))
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@ -503,7 +505,7 @@ static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
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if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
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pr_err("ACPI call for illumination failed\n");
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return LED_OFF;
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} else if (result == TOS_NOT_SUPPORTED) {
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} else if (result != TOS_SUCCESS) {
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return LED_OFF;
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}
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@ -565,7 +567,7 @@ static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
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return -ENODEV;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
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@ -584,21 +586,22 @@ static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
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return -ENODEV;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
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{
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struct toshiba_acpi_dev *dev = container_of(cdev,
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struct toshiba_acpi_dev, kbd_led);
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u32 state, result;
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u32 result;
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u32 state;
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/* Check the keyboard backlight state */
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result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
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if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
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pr_err("ACPI call to get the keyboard backlight failed\n");
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return LED_OFF;
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} else if (result == TOS_NOT_SUPPORTED) {
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} else if (result != TOS_SUCCESS) {
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return LED_OFF;
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}
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@ -610,7 +613,8 @@ static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
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{
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struct toshiba_acpi_dev *dev = container_of(cdev,
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struct toshiba_acpi_dev, kbd_led);
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u32 state, result;
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u32 result;
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u32 state;
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/* Set the keyboard backlight state */
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state = brightness ? 1 : 0;
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@ -640,7 +644,7 @@ static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
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return -ENODEV;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
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@ -659,7 +663,7 @@ static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
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return -ENODEV;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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/* Eco Mode support */
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@ -709,6 +713,8 @@ toshiba_eco_mode_get_status(struct led_classdev *cdev)
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if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
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pr_err("ACPI call to get ECO led failed\n");
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return LED_OFF;
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} else if (out[0] != TOS_SUCCESS) {
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return LED_OFF;
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}
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return out[2] ? LED_FULL : LED_OFF;
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@ -769,12 +775,15 @@ static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
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if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
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pr_err("ACPI call to query the accelerometer failed\n");
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return -EIO;
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} else if (out[0] == TOS_NOT_SUPPORTED) {
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return -ENODEV;
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} else if (out[0] == TOS_SUCCESS) {
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*xy = out[2];
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*z = out[4];
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return 0;
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}
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*xy = out[2];
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*z = out[4];
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return 0;
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return -EIO;
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}
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/* Sleep (Charge and Music) utilities support */
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@ -835,7 +844,7 @@ static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
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return -EIO;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
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@ -857,7 +866,7 @@ static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
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return -EIO;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
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@ -880,11 +889,12 @@ static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
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return -ENODEV;
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} else if (out[0] == TOS_INPUT_DATA_ERROR) {
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return -EIO;
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} else if (out[0] == TOS_SUCCESS) {
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*mode = out[2];
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return 0;
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}
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*mode = out[2];
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return 0;
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return -EIO;
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}
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static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
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@ -910,7 +920,7 @@ static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
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return -EIO;
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}
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return 0;
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return out[0] == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
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@ -932,11 +942,12 @@ static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
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} else if (out[0] == TOS_NOT_SUPPORTED ||
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out[0] == TOS_INPUT_DATA_ERROR) {
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return -ENODEV;
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} else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
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*state = out[2];
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return 0;
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}
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*state = out[2];
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return 0;
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return -EIO;
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}
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static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
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@ -962,7 +973,7 @@ static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
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return -EIO;
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}
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return 0;
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return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
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}
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static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
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@ -983,7 +994,7 @@ static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
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return -EIO;
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}
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return 0;
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return result = TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
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@ -1004,7 +1015,7 @@ static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
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return -EIO;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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/* Keyboard function keys */
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@ -1024,7 +1035,7 @@ static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
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return -ENODEV;
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}
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return 0;
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return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
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}
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static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
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@ -1043,7 +1054,7 @@ static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
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return -ENODEV;
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}
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return 0;
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return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
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}
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/* Panel Power ON */
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@ -1065,7 +1076,7 @@ static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
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return -EIO;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
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@ -1086,7 +1097,7 @@ static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
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return -EIO;
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}
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return 0;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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/* USB Three */
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@ -1108,7 +1119,7 @@ static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
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return -EIO;
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}
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return 0;
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return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
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}
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static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
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@ -1129,7 +1140,7 @@ static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
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return -EIO;
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}
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return 0;
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return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
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}
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/* Hotkey Event type */
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@ -1146,26 +1157,37 @@ static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
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return -EIO;
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} else if (out[0] == TOS_NOT_SUPPORTED) {
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return -ENODEV;
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} else if (out[0] == TOS_SUCCESS) {
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*type = out[3];
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return 0;
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}
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*type = out[3];
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return 0;
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return -EIO;
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}
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/* Transflective Backlight */
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static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
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{
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u32 hci_result = hci_read(dev, HCI_TR_BACKLIGHT, status);
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u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
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return hci_result == TOS_SUCCESS ? 0 : -EIO;
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if (result == TOS_FAILURE)
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pr_err("ACPI call to get Transflective Backlight failed\n");
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else if (result == TOS_NOT_SUPPORTED)
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return -ENODEV;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
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{
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u32 hci_result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
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u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
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return hci_result == TOS_SUCCESS ? 0 : -EIO;
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if (result == TOS_FAILURE)
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pr_err("ACPI call to set Transflective Backlight failed\n");
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else if (result == TOS_NOT_SUPPORTED)
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return -ENODEV;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static struct proc_dir_entry *toshiba_proc_dir;
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@ -1173,7 +1195,7 @@ static struct proc_dir_entry *toshiba_proc_dir;
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/* LCD Brightness */
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static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
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{
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u32 hci_result;
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u32 result;
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u32 value;
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int brightness = 0;
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@ -1187,8 +1209,12 @@ static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
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brightness++;
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}
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hci_result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
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if (hci_result == TOS_SUCCESS)
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result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
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if (result == TOS_FAILURE)
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pr_err("ACPI call to get LCD Brightness failed\n");
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else if (result == TOS_NOT_SUPPORTED)
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return -ENODEV;
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if (result == TOS_SUCCESS)
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return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
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return -EIO;
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@ -1204,8 +1230,8 @@ static int get_lcd_brightness(struct backlight_device *bd)
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static int lcd_proc_show(struct seq_file *m, void *v)
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{
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struct toshiba_acpi_dev *dev = m->private;
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int value;
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int levels;
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int value;
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if (!dev->backlight_dev)
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return -ENODEV;
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@ -1219,6 +1245,7 @@ static int lcd_proc_show(struct seq_file *m, void *v)
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}
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pr_err("Error reading LCD brightness\n");
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return -EIO;
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}
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@ -1229,7 +1256,7 @@ static int lcd_proc_open(struct inode *inode, struct file *file)
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static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
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{
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u32 hci_result;
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u32 result;
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if (dev->tr_backlight_supported) {
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int ret = set_tr_backlight_status(dev, !value);
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@ -1241,8 +1268,13 @@ static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
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}
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value = value << HCI_LCD_BRIGHTNESS_SHIFT;
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hci_result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
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return hci_result == TOS_SUCCESS ? 0 : -EIO;
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result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
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if (result == TOS_FAILURE)
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pr_err("ACPI call to set LCD Brightness failed\n");
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else if (result == TOS_NOT_SUPPORTED)
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return -ENODEV;
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return result == TOS_SUCCESS ? 0 : -EIO;
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}
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static int set_lcd_status(struct backlight_device *bd)
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@ -1258,24 +1290,22 @@ static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
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struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
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char cmd[42];
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size_t len;
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int value;
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int ret;
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int levels = dev->backlight_dev->props.max_brightness + 1;
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int value;
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len = min(count, sizeof(cmd) - 1);
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if (copy_from_user(cmd, buf, len))
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return -EFAULT;
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cmd[len] = '\0';
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if (sscanf(cmd, " brightness : %i", &value) == 1 &&
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value >= 0 && value < levels) {
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ret = set_lcd_brightness(dev, value);
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if (ret == 0)
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ret = count;
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} else {
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ret = -EINVAL;
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}
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return ret;
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if (sscanf(cmd, " brightness : %i", &value) != 1 &&
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value < 0 && value > levels)
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return -EINVAL;
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if (set_lcd_brightness(dev, value))
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return -EIO;
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return count;
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}
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static const struct file_operations lcd_proc_fops = {
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@ -1287,22 +1317,25 @@ static const struct file_operations lcd_proc_fops = {
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.write = lcd_proc_write,
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};
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/* Video-Out */
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static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
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{
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u32 hci_result;
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u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
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hci_result = hci_read(dev, HCI_VIDEO_OUT, status);
|
||||
return hci_result == TOS_SUCCESS ? 0 : -EIO;
|
||||
if (result == TOS_FAILURE)
|
||||
pr_err("ACPI call to get Video-Out failed\n");
|
||||
else if (result == TOS_NOT_SUPPORTED)
|
||||
return -ENODEV;
|
||||
|
||||
return result == TOS_SUCCESS ? 0 : -EIO;
|
||||
}
|
||||
|
||||
static int video_proc_show(struct seq_file *m, void *v)
|
||||
{
|
||||
struct toshiba_acpi_dev *dev = m->private;
|
||||
u32 value;
|
||||
int ret;
|
||||
|
||||
ret = get_video_status(dev, &value);
|
||||
if (!ret) {
|
||||
if (!get_video_status(dev, &value)) {
|
||||
int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
|
||||
int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
|
||||
int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
|
||||
|
|
@ -1310,9 +1343,10 @@ static int video_proc_show(struct seq_file *m, void *v)
|
|||
seq_printf(m, "lcd_out: %d\n", is_lcd);
|
||||
seq_printf(m, "crt_out: %d\n", is_crt);
|
||||
seq_printf(m, "tv_out: %d\n", is_tv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return ret;
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
static int video_proc_open(struct inode *inode, struct file *file)
|
||||
|
|
@ -1324,13 +1358,14 @@ static ssize_t video_proc_write(struct file *file, const char __user *buf,
|
|||
size_t count, loff_t *pos)
|
||||
{
|
||||
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
|
||||
char *cmd, *buffer;
|
||||
int ret;
|
||||
int value;
|
||||
char *buffer;
|
||||
char *cmd;
|
||||
int remain = count;
|
||||
int lcd_out = -1;
|
||||
int crt_out = -1;
|
||||
int tv_out = -1;
|
||||
int value;
|
||||
int ret;
|
||||
u32 video_out;
|
||||
|
||||
cmd = kmalloc(count + 1, GFP_KERNEL);
|
||||
|
|
@ -1382,7 +1417,7 @@ static ssize_t video_proc_write(struct file *file, const char __user *buf,
|
|||
ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
|
||||
}
|
||||
|
||||
return ret ? ret : count;
|
||||
return ret ? -EIO : count;
|
||||
}
|
||||
|
||||
static const struct file_operations video_proc_fops = {
|
||||
|
|
@ -1403,10 +1438,8 @@ static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
|
|||
pr_err("ACPI call to get Fan status failed\n");
|
||||
else if (result == TOS_NOT_SUPPORTED)
|
||||
return -ENODEV;
|
||||
else if (result == TOS_SUCCESS)
|
||||
return 0;
|
||||
|
||||
return -EIO;
|
||||
return result == TOS_SUCCESS ? 0 : -EIO;
|
||||
}
|
||||
|
||||
static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
|
||||
|
|
@ -1417,10 +1450,8 @@ static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
|
|||
pr_err("ACPI call to set Fan status failed\n");
|
||||
else if (result == TOS_NOT_SUPPORTED)
|
||||
return -ENODEV;
|
||||
else if (result == TOS_SUCCESS)
|
||||
return 0;
|
||||
|
||||
return -EIO;
|
||||
return result == TOS_SUCCESS ? 0 : -EIO;
|
||||
}
|
||||
|
||||
static int fan_proc_show(struct seq_file *m, void *v)
|
||||
|
|
|
|||
Loading…
Reference in New Issue