ACPI: thinkpad-acpi: cleanup video subdriver

Cleanup video subdriver for sysfs conversion, and properly check
result status of acpi_evalf.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 20 insertions, 5 deletions

diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index e06bad5c8fe4..3a8718a08116 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -446,17 +446,32 @@ enum video_access_mode {
         TPACPI_VIDEO_NEW,       /* all others */
 };
 
+enum {  /* video status flags, based on VIDEO_570 */
+        TP_ACPI_VIDEO_S_LCD = 0x01,     /* LCD output enabled */
+        TP_ACPI_VIDEO_S_CRT = 0x02,     /* CRT output enabled */
+        TP_ACPI_VIDEO_S_DVI = 0x08,     /* DVI output enabled */
+};
+
+enum {  /* TPACPI_VIDEO_570 constants */
+        TP_ACPI_VIDEO_570_PHSCMD = 0x87,        /* unknown magic constant :( */
+        TP_ACPI_VIDEO_570_PHSMASK = 0x03,       /* PHS bits that map to
+                                                 * video_status_flags */
+        TP_ACPI_VIDEO_570_PHS2CMD = 0x8b,       /* unknown magic constant :( */
+        TP_ACPI_VIDEO_570_PHS2SET = 0x80,       /* unknown magic constant :( */
+};
+
 static enum video_access_mode video_supported;
 static int video_orig_autosw;
 static acpi_handle vid_handle, vid2_handle;
 
 static int video_init(struct ibm_init_struct *iibm);
 static void video_exit(void);
-static int video_status(void);
-static int video_autosw(void);
-static int video_switch(void);
-static int video_switch2(int status);
-static int video_expand(void);
+static int video_outputsw_get(void);
+static int video_outputsw_set(int status);
+static int video_autosw_get(void);
+static int video_autosw_set(int enable);
+static int video_outputsw_cycle(void);
+static int video_expand_toggle(void);
 static int video_read(char *p);
 static int video_write(char *buf);