V4L/DVB (7313): pvrusb2: Make LED control into a device-specific attribute

The pvrusb2 driver has used hardcoded logic to control the LED on the
device.  However this is really Hauppauge-specific behavior.  This
change defines a new device attribute for LED control and sets things
up appropriately for Hauppauge devices.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.c b/drivers/media/video/pvrusb2/pvrusb2-devattr.c
index 1a60591..638c577 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.c
@@ -61,6 +61,7 @@ static const struct pvr2_device_desc pvr2_device_29xxx = {
                .flag_has_composite = !0,
                .flag_has_svideo = !0,
                .signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
+               .led_scheme = PVR2_LED_SCHEME_HAUPPAUGE,
 };
 
 
@@ -94,6 +95,7 @@ static const struct pvr2_device_desc pvr2_device_24xxx = {
                .flag_has_composite = !0,
                .flag_has_svideo = !0,
                .signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
+               .led_scheme = PVR2_LED_SCHEME_HAUPPAUGE,
 };
 
 
@@ -235,6 +237,7 @@ static const struct pvr2_device_desc pvr2_device_75xxx = {
                .signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
                .digital_control_scheme = PVR2_DIGITAL_SCHEME_HAUPPAUGE,
                .default_std_mask = V4L2_STD_NTSC_M,
+               .led_scheme = PVR2_LED_SCHEME_HAUPPAUGE,
 };
 
 

diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
index 4e4798d..ce40049 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
@@ -43,6 +43,9 @@ struct pvr2_string_table {
 #define PVR2_DIGITAL_SCHEME_HAUPPAUGE 1
 #define PVR2_DIGITAL_SCHEME_ONAIR 2
 
+#define PVR2_LED_SCHEME_NONE 0
+#define PVR2_LED_SCHEME_HAUPPAUGE 1
+
 /* This describes a particular hardware type (except for the USB device ID
    which must live in a separate structure due to environmental
    constraints).  See the top of pvrusb2-hdw.c for where this is
@@ -70,6 +73,11 @@ struct pvr2_device_desc {
           drivers (search for things which touch this field). */
        unsigned int signal_routing_scheme;
 
+       /* Indicates scheme for controlling device's LED (if any).  The
+          driver will turn on the LED when streaming is underway.  This
+          contains one of PVR2_LED_SCHEME_XXX. */
+       unsigned int led_scheme;
+
        /* Control scheme to use if there is a digital tuner.  This
           contains one of PVR2_DIGITAL_SCHEME_XXX.  This is an arbitrary
           integer scheme id; its meaning is contained entirely within the

diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/drivers/media/video/pvrusb2/pvrusb2-encoder.c
index ccb5d14..324d1bd 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-encoder.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-encoder.c
@@ -480,8 +480,6 @@ int pvr2_encoder_start(struct pvr2_hdw *hdw)
        /* unmask some interrupts */
        pvr2_write_register(hdw, 0x0048, 0xbfffffff);
 
-       pvr2_led_ctrl(hdw, 1);
-
        pvr2_encoder_vcmd(hdw,CX2341X_ENC_MUTE_VIDEO,1,
                          hdw->input_val == PVR2_CVAL_INPUT_RADIO ? 1 : 0);
 
@@ -524,8 +522,6 @@ int pvr2_encoder_stop(struct pvr2_hdw *hdw)
                break;
        }
 
-       pvr2_led_ctrl(hdw, 0);
-
        return status;
 }
 

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
index af06e6c..bc341ae 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
@@ -253,6 +253,9 @@ struct pvr2_hdw {
           PVR2_STATE_xxxx */
        unsigned int master_state;
 
+       /* True if device led is currently on */
+       int led_on;
+
        /* True if states must be re-evaluated */
        int state_stale;
 

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 9b1e22f..c51c5ce 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -3357,24 +3357,48 @@ static void pvr2_hdw_cmd_modeswitch(struct pvr2_hdw *hdw,int digitalFl)
 }
 
 
-/* Toggle LED */
-int pvr2_led_ctrl(struct pvr2_hdw *hdw, int onoff)
+void pvr2_led_ctrl_hauppauge(struct pvr2_hdw *hdw, int onoff)
 {
        /* change some GPIO data
         *
         * note: bit d7 of dir appears to control the LED,
         * so we shut it off here.
         *
-        * FIXME: is this device-specific?
         */
-       if (onoff)
+       if (onoff) {
                pvr2_hdw_gpio_chg_dir(hdw, 0xffffffff, 0x00000481);
-       else
+       } else {
                pvr2_hdw_gpio_chg_dir(hdw, 0xffffffff, 0x00000401);
-
+       }
        pvr2_hdw_gpio_chg_out(hdw, 0xffffffff, 0x00000000);
+}
 
-       return 0;
+
+typedef void (*led_method_func)(struct pvr2_hdw *,int);
+
+static led_method_func led_methods[] = {
+       [PVR2_LED_SCHEME_HAUPPAUGE] = pvr2_led_ctrl_hauppauge,
+};
+
+
+/* Toggle LED */
+static void pvr2_led_ctrl(struct pvr2_hdw *hdw,int onoff)
+{
+       unsigned int scheme_id;
+       led_method_func fp;
+
+       if ((!onoff) == (!hdw->led_on)) return;
+
+       hdw->led_on = onoff != 0;
+
+       scheme_id = hdw->hdw_desc->led_scheme;
+       if (scheme_id < ARRAY_SIZE(led_methods)) {
+               fp = led_methods[scheme_id];
+       } else {
+               fp = NULL;
+       }
+
+       if (fp) (*fp)(hdw,onoff);
 }
 
 
@@ -3871,6 +3895,7 @@ static int pvr2_hdw_state_eval(struct pvr2_hdw *hdw)
                           "Device state change from %s to %s",
                           pvr2_get_state_name(hdw->master_state),
                           pvr2_get_state_name(st));
+               pvr2_led_ctrl(hdw,st == PVR2_STATE_RUN);
                hdw->master_state = st;
                state_updated = !0;
                callback_flag = !0;

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index 4fc9db3..57e1ff4 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -258,9 +258,6 @@ int pvr2_hdw_cmd_powerup(struct pvr2_hdw *);
 /* suspend */
 int pvr2_hdw_cmd_powerdown(struct pvr2_hdw *);
 
-/* toggle LED */
-int pvr2_led_ctrl(struct pvr2_hdw *hdw, int onoff);
-
 /* Order decoder to reset */
 int pvr2_hdw_cmd_decoder_reset(struct pvr2_hdw *);