diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-28 22:02:23 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-29 16:46:15 +0300 |
| commit | 060162c1af5cd807384247cc95a0d5cb016e316a (patch) | |
| tree | 6510e24e17a7f0a6b682f996c551183a04e47828 | |
| parent | b4a7113f84128ed0acbc5ff886bd5cf4d87ab733 (diff) | |
| download | linux-060162c1af5cd807384247cc95a0d5cb016e316a.tar.xz | |
media: vim2m: Fix RGB 565 BE/LE support
The support for those two formats are archtecture-dependent.
Use the endianness to CPU macros to do it right.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
| -rw-r--r-- | drivers/media/platform/vim2m.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c index dd47821fc661..d8763a8a7be6 100644 --- a/drivers/media/platform/vim2m.c +++ b/drivers/media/platform/vim2m.c @@ -302,7 +302,7 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in, switch (in->fourcc) { case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */ for (i = 0; i < 2; i++) { - u16 pix = *(u16 *)(src[i]); + u16 pix = le16_to_cpu(*(__le16 *)(src[i])); *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07; *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03; @@ -311,12 +311,11 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in, break; case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */ for (i = 0; i < 2; i++) { - u16 pix = *(u16 *)(src[i]); + u16 pix = be16_to_cpu(*(__be16 *)(src[i])); - *r++ = (u8)(((0x00f8 & pix) >> 3) << 3) | 0x07; - *g++ = (u8)(((pix & 0x7) << 2) | - ((pix & 0xe000) >> 5)) | 0x03; - *b++ = (u8)(((pix & 0x1f00) >> 8) << 3) | 0x07; + *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07; + *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03; + *b++ = (u8)((pix & 0x1f) << 3) | 0x07; } break; default: @@ -345,21 +344,26 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in, switch (out->fourcc) { case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */ for (i = 0; i < 2; i++) { - u16 *pix = (u16 *)*dst; + u16 pix; + __le16 *dst_pix = (__le16 *)*dst; - *pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) | - (*b >> 3); + pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) | + (*b >> 3); + + *dst_pix = cpu_to_le16(pix); *dst += 2; } return; case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */ for (i = 0; i < 2; i++) { - u16 *pix = (u16 *)*dst; - u8 green = *g++ >> 2; + u16 pix; + __be16 *dst_pix = (__be16 *)*dst; + + pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) | + (*b >> 3); - *pix = ((green << 8) & 0xe000) | (green & 0x07) | - ((*b++ << 5) & 0x1f00) | ((*r++ & 0xf8)); + *dst_pix = cpu_to_be16(pix); *dst += 2; } |