diff options
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 177 |
1 files changed, 104 insertions, 73 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 66b596a7f710..65adb122189f 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -93,6 +93,7 @@ MODULE_LICENSE("GPL"); /* Return codes */ #define TOS_SUCCESS 0x0000 +#define TOS_SUCCESS2 0x0001 #define TOS_OPEN_CLOSE_OK 0x0044 #define TOS_FAILURE 0x1000 #define TOS_NOT_SUPPORTED 0x8000 @@ -469,7 +470,8 @@ static void toshiba_illumination_set(struct led_classdev *cdev, { struct toshiba_acpi_dev *dev = container_of(cdev, struct toshiba_acpi_dev, led_dev); - u32 state, result; + u32 result; + u32 state; /* First request : initialize communication. */ if (!sci_open(dev)) @@ -503,7 +505,7 @@ static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) { pr_err("ACPI call for illumination failed\n"); return LED_OFF; - } else if (result == TOS_NOT_SUPPORTED) { + } else if (result != TOS_SUCCESS) { return LED_OFF; } @@ -565,7 +567,7 @@ static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time) return -ENODEV; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time) @@ -584,21 +586,22 @@ static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time) return -ENODEV; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev) { struct toshiba_acpi_dev *dev = container_of(cdev, struct toshiba_acpi_dev, kbd_led); - u32 state, result; + u32 result; + u32 state; /* Check the keyboard backlight state */ result = hci_read(dev, HCI_KBD_ILLUMINATION, &state); if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) { pr_err("ACPI call to get the keyboard backlight failed\n"); return LED_OFF; - } else if (result == TOS_NOT_SUPPORTED) { + } else if (result != TOS_SUCCESS) { return LED_OFF; } @@ -610,7 +613,8 @@ static void toshiba_kbd_backlight_set(struct led_classdev *cdev, { struct toshiba_acpi_dev *dev = container_of(cdev, struct toshiba_acpi_dev, kbd_led); - u32 state, result; + u32 result; + u32 state; /* Set the keyboard backlight state */ state = brightness ? 1 : 0; @@ -640,7 +644,7 @@ static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state) return -ENODEV; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) @@ -659,7 +663,7 @@ static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) return -ENODEV; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } /* Eco Mode support */ @@ -709,6 +713,8 @@ toshiba_eco_mode_get_status(struct led_classdev *cdev) if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) { pr_err("ACPI call to get ECO led failed\n"); return LED_OFF; + } else if (out[0] != TOS_SUCCESS) { + return LED_OFF; } return out[2] ? LED_FULL : LED_OFF; @@ -769,12 +775,15 @@ static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev, if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) { pr_err("ACPI call to query the accelerometer failed\n"); return -EIO; + } else if (out[0] == TOS_NOT_SUPPORTED) { + return -ENODEV; + } else if (out[0] == TOS_SUCCESS) { + *xy = out[2]; + *z = out[4]; + return 0; } - *xy = out[2]; - *z = out[4]; - - return 0; + return -EIO; } /* Sleep (Charge and Music) utilities support */ @@ -835,7 +844,7 @@ static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev, return -EIO; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev, @@ -857,7 +866,7 @@ static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev, return -EIO; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev, @@ -880,11 +889,12 @@ static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev, return -ENODEV; } else if (out[0] == TOS_INPUT_DATA_ERROR) { return -EIO; + } else if (out[0] == TOS_SUCCESS) { + *mode = out[2]; + return 0; } - *mode = out[2]; - - return 0; + return -EIO; } static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, @@ -910,7 +920,7 @@ static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, return -EIO; } - return 0; + return out[0] == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, @@ -932,11 +942,12 @@ static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, } else if (out[0] == TOS_NOT_SUPPORTED || out[0] == TOS_INPUT_DATA_ERROR) { return -ENODEV; + } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) { + *state = out[2]; + return 0; } - *state = out[2]; - - return 0; + return -EIO; } static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, @@ -962,7 +973,7 @@ static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, return -EIO; } - return 0; + return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO; } static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state) @@ -983,7 +994,7 @@ static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state) return -EIO; } - return 0; + return result = TOS_SUCCESS ? 0 : -EIO; } static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state) @@ -1004,7 +1015,7 @@ static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state) return -EIO; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } /* Keyboard function keys */ @@ -1024,7 +1035,7 @@ static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode) return -ENODEV; } - return 0; + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; } static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) @@ -1043,7 +1054,7 @@ static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) return -ENODEV; } - return 0; + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; } /* Panel Power ON */ @@ -1065,7 +1076,7 @@ static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state) return -EIO; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) @@ -1086,7 +1097,7 @@ static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) return -EIO; } - return 0; + return result == TOS_SUCCESS ? 0 : -EIO; } /* USB Three */ @@ -1108,7 +1119,7 @@ static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state) return -EIO; } - return 0; + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; } static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state) @@ -1129,7 +1140,7 @@ static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state) return -EIO; } - return 0; + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; } /* Hotkey Event type */ @@ -1146,26 +1157,37 @@ static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev, return -EIO; } else if (out[0] == TOS_NOT_SUPPORTED) { return -ENODEV; + } else if (out[0] == TOS_SUCCESS) { + *type = out[3]; + return 0; } - *type = out[3]; - - return 0; + return -EIO; } /* Transflective Backlight */ static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) { - u32 hci_result = hci_read(dev, HCI_TR_BACKLIGHT, status); + u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Transflective Backlight failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; - return hci_result == TOS_SUCCESS ? 0 : -EIO; + return result == TOS_SUCCESS ? 0 : -EIO; } static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status) { - u32 hci_result = hci_write(dev, HCI_TR_BACKLIGHT, !status); + u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to set Transflective Backlight failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; - return hci_result == TOS_SUCCESS ? 0 : -EIO; + return result == TOS_SUCCESS ? 0 : -EIO; } static struct proc_dir_entry *toshiba_proc_dir; @@ -1173,7 +1195,7 @@ static struct proc_dir_entry *toshiba_proc_dir; /* LCD Brightness */ static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) { - u32 hci_result; + u32 result; u32 value; int brightness = 0; @@ -1187,8 +1209,12 @@ static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) brightness++; } - hci_result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); - if (hci_result == TOS_SUCCESS) + result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); + if (result == TOS_FAILURE) + pr_err("ACPI call to get LCD Brightness failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + if (result == TOS_SUCCESS) return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT); return -EIO; @@ -1204,8 +1230,8 @@ static int get_lcd_brightness(struct backlight_device *bd) static int lcd_proc_show(struct seq_file *m, void *v) { struct toshiba_acpi_dev *dev = m->private; - int value; int levels; + int value; if (!dev->backlight_dev) return -ENODEV; @@ -1219,6 +1245,7 @@ static int lcd_proc_show(struct seq_file *m, void *v) } pr_err("Error reading LCD brightness\n"); + return -EIO; } @@ -1229,7 +1256,7 @@ static int lcd_proc_open(struct inode *inode, struct file *file) static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) { - u32 hci_result; + u32 result; if (dev->tr_backlight_supported) { int ret = set_tr_backlight_status(dev, !value); @@ -1241,8 +1268,13 @@ static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) } value = value << HCI_LCD_BRIGHTNESS_SHIFT; - hci_result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); - return hci_result == TOS_SUCCESS ? 0 : -EIO; + result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); + if (result == TOS_FAILURE) + pr_err("ACPI call to set LCD Brightness failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; } static int set_lcd_status(struct backlight_device *bd) @@ -1258,24 +1290,22 @@ static ssize_t lcd_proc_write(struct file *file, const char __user *buf, struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); char cmd[42]; size_t len; - int value; - int ret; int levels = dev->backlight_dev->props.max_brightness + 1; + int value; len = min(count, sizeof(cmd) - 1); if (copy_from_user(cmd, buf, len)) return -EFAULT; cmd[len] = '\0'; - if (sscanf(cmd, " brightness : %i", &value) == 1 && - value >= 0 && value < levels) { - ret = set_lcd_brightness(dev, value); - if (ret == 0) - ret = count; - } else { - ret = -EINVAL; - } - return ret; + if (sscanf(cmd, " brightness : %i", &value) != 1 && + value < 0 && value > levels) + return -EINVAL; + + if (set_lcd_brightness(dev, value)) + return -EIO; + + return count; } static const struct file_operations lcd_proc_fops = { @@ -1287,22 +1317,25 @@ static const struct file_operations lcd_proc_fops = { .write = lcd_proc_write, }; +/* Video-Out */ static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) { - u32 hci_result; + u32 result = hci_read(dev, HCI_VIDEO_OUT, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Video-Out failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; - hci_result = hci_read(dev, HCI_VIDEO_OUT, status); - return hci_result == TOS_SUCCESS ? 0 : -EIO; + 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) |