[PATCH v1 1/6] media: vidtv: Rename PI definition to PI_SAMPLES

Andy Shevchenko
2025-10-27T14:38:57Z

The definition of PI in the driver is not the actual value in radians,
but rather degrees. Since we are going to have a value in radians
defined in a global header, rename this definition to avoid potential
collisions. No functional changes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/media/test-drivers/vidtv/vidtv_s302m.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.c b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
index 9da18eac04b5..b3217d643b1e 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_s302m.c
+++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
@@ -45,7 +45,7 @@
#define FF_S302M_DEFAULT_PTS_OFFSET 100000

/* Used by the tone generator: number of samples for PI */
-#define PI 180
+#define PI_SAMPLES 180

static const u8 reverse[256] = {
/* from ffmpeg */
@@ -259,10 +259,10 @@ static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e)
if (!ctx->last_tone)
return 0x8000;

- pos = (2 * PI * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
+ pos = (2 * PI_SAMPLES * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
ctx->note_offset++;

- return (fixp_sin32(pos % (2 * PI)) >> 16) + 0x8000;
+ return (fixp_sin32(pos % (2 * PI_SAMPLES)) >> 16) + 0x8000;
}

/* bug somewhere */
--
2.50.1