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90 lines
2.4 KiB
Diff
90 lines
2.4 KiB
Diff
From f5bc65a235291381313a7a9769b46afbfc267ae0 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 18 Apr 2018 14:13:32 +0100
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Subject: [PATCH 336/454] media: adv7180: Nasty hack to allow input selection.
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Whilst the adv7180 driver support s_routing, nothing else
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does, and there is a missing lump of framework code to
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define the mapping from connectors on a board to the inputs
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they represent on the ADV7180.
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Add a nasty hack to take a module parameter that is passed in
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to s_routing on any call to G_STD, or S_STD (or subdev
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g_input_status call).
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/media/i2c/adv7180.c | 30 ++++++++++++++++++++++++++++--
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1 file changed, 28 insertions(+), 2 deletions(-)
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--- a/drivers/media/i2c/adv7180.c
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+++ b/drivers/media/i2c/adv7180.c
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@@ -189,6 +189,10 @@
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#define V4L2_CID_ADV_FAST_SWITCH (V4L2_CID_USER_ADV7180_BASE + 0x00)
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+static int dbg_input;
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+module_param(dbg_input, int, 0644);
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+MODULE_PARM_DESC(dbg_input, "Input number (0-31)");
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+
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struct adv7180_state;
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#define ADV7180_FLAG_RESET_POWERED BIT(0)
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@@ -405,10 +409,24 @@ out:
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return ret;
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}
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+static void adv7180_check_input(struct v4l2_subdev *sd)
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+{
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+ struct adv7180_state *state = to_state(sd);
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+
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+ if (state->input != dbg_input)
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+ if (adv7180_s_routing(sd, dbg_input, 0, 0))
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+ /* Failed - reset dbg_input */
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+ dbg_input = state->input;
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+}
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+
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static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
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{
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struct adv7180_state *state = to_state(sd);
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- int ret = mutex_lock_interruptible(&state->mutex);
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+ int ret;
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+
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+ adv7180_check_input(sd);
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+
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+ ret = mutex_lock_interruptible(&state->mutex);
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if (ret)
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return ret;
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@@ -434,7 +452,11 @@ static int adv7180_program_std(struct ad
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static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
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{
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struct adv7180_state *state = to_state(sd);
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- int ret = mutex_lock_interruptible(&state->mutex);
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+ int ret;
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+
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+ adv7180_check_input(sd);
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+
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+ ret = mutex_lock_interruptible(&state->mutex);
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if (ret)
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return ret;
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@@ -456,6 +478,8 @@ static int adv7180_g_std(struct v4l2_sub
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{
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struct adv7180_state *state = to_state(sd);
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+ adv7180_check_input(sd);
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+
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*norm = state->curr_norm;
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return 0;
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@@ -791,6 +815,8 @@ static int adv7180_s_stream(struct v4l2_
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return 0;
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}
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+ adv7180_check_input(sd);
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+
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/* Must wait until querystd released the lock */
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ret = mutex_lock_interruptible(&state->mutex);
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if (ret)
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