diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-22 17:06:32 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-26 20:08:50 +0300 |
| commit | cce8ccca80d8388982133192d0a6d9dc2e8ed712 (patch) | |
| tree | 4e37956f86eba2c619fe2a4d56af0b5c993411ae /drivers/media/platform/s3c-camif | |
| parent | 093347abc7a4e0490e3c962ecbde2dc272a8f708 (diff) | |
| download | linux-cce8ccca80d8388982133192d0a6d9dc2e8ed712.tar.xz | |
media: use the BIT() macro
As warned by cppcheck:
[drivers/media/dvb-frontends/cx24123.c:434]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
[drivers/media/pci/bt8xx/bttv-input.c:87]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
[drivers/media/pci/bt8xx/bttv-input.c:98]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
...
[drivers/media/v4l2-core/v4l2-ioctl.c:1391]: (error) Shifting signed 32-bit value by 31 bits is undefined behaviour
There are lots of places where we're doing 1 << 31. That's bad,
as, depending on the architecture, this has an undefined behavior.
The BIT() macro is already prepared to handle this, so, let's
just switch all "1 << number" macros by BIT(number) at the header files
with has 1 << 31.
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> # exynos4-is and s3c-camif
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # omap3isp, vsp1, xilinx, wl128x and ipu3
Reviewed-by: Benoit Parrot <bparrot@ti.com> # am437x and ti-vpe
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform/s3c-camif')
| -rw-r--r-- | drivers/media/platform/s3c-camif/camif-regs.h | 118 |
1 files changed, 60 insertions, 58 deletions
diff --git a/drivers/media/platform/s3c-camif/camif-regs.h b/drivers/media/platform/s3c-camif/camif-regs.h index 29f839cdb486..052948a7b669 100644 --- a/drivers/media/platform/s3c-camif/camif-regs.h +++ b/drivers/media/platform/s3c-camif/camif-regs.h @@ -9,6 +9,8 @@ #ifndef CAMIF_REGS_H_ #define CAMIF_REGS_H_ +#include <linux/bitops.h> + #include "camif-core.h" #include <media/drv-intf/s3c_camif.h> @@ -19,7 +21,7 @@ /* Camera input format */ #define S3C_CAMIF_REG_CISRCFMT 0x00 -#define CISRCFMT_ITU601_8BIT (1 << 31) +#define CISRCFMT_ITU601_8BIT BIT(31) #define CISRCFMT_ITU656_8BIT (0 << 31) #define CISRCFMT_ORDER422_YCBYCR (0 << 14) #define CISRCFMT_ORDER422_YCRYCB (1 << 14) @@ -30,14 +32,14 @@ /* Window offset */ #define S3C_CAMIF_REG_CIWDOFST 0x04 -#define CIWDOFST_WINOFSEN (1 << 31) -#define CIWDOFST_CLROVCOFIY (1 << 30) -#define CIWDOFST_CLROVRLB_PR (1 << 28) -/* #define CIWDOFST_CLROVPRFIY (1 << 27) */ -#define CIWDOFST_CLROVCOFICB (1 << 15) -#define CIWDOFST_CLROVCOFICR (1 << 14) -#define CIWDOFST_CLROVPRFICB (1 << 13) -#define CIWDOFST_CLROVPRFICR (1 << 12) +#define CIWDOFST_WINOFSEN BIT(31) +#define CIWDOFST_CLROVCOFIY BIT(30) +#define CIWDOFST_CLROVRLB_PR BIT(28) +/* #define CIWDOFST_CLROVPRFIY BIT(27) */ +#define CIWDOFST_CLROVCOFICB BIT(15) +#define CIWDOFST_CLROVCOFICR BIT(14) +#define CIWDOFST_CLROVPRFICB BIT(13) +#define CIWDOFST_CLROVPRFICR BIT(12) #define CIWDOFST_OFST_MASK (0x7ff << 16 | 0x7ff) /* Window offset 2 */ @@ -46,24 +48,24 @@ /* Global control */ #define S3C_CAMIF_REG_CIGCTRL 0x08 -#define CIGCTRL_SWRST (1 << 31) -#define CIGCTRL_CAMRST (1 << 30) +#define CIGCTRL_SWRST BIT(31) +#define CIGCTRL_CAMRST BIT(30) #define CIGCTRL_TESTPATTERN_NORMAL (0 << 27) #define CIGCTRL_TESTPATTERN_COLOR_BAR (1 << 27) #define CIGCTRL_TESTPATTERN_HOR_INC (2 << 27) #define CIGCTRL_TESTPATTERN_VER_INC (3 << 27) #define CIGCTRL_TESTPATTERN_MASK (3 << 27) -#define CIGCTRL_INVPOLPCLK (1 << 26) -#define CIGCTRL_INVPOLVSYNC (1 << 25) -#define CIGCTRL_INVPOLHREF (1 << 24) -#define CIGCTRL_IRQ_OVFEN (1 << 22) -#define CIGCTRL_HREF_MASK (1 << 21) -#define CIGCTRL_IRQ_LEVEL (1 << 20) +#define CIGCTRL_INVPOLPCLK BIT(26) +#define CIGCTRL_INVPOLVSYNC BIT(25) +#define CIGCTRL_INVPOLHREF BIT(24) +#define CIGCTRL_IRQ_OVFEN BIT(22) +#define CIGCTRL_HREF_MASK BIT(21) +#define CIGCTRL_IRQ_LEVEL BIT(20) /* IRQ_CLR_C, IRQ_CLR_P */ -#define CIGCTRL_IRQ_CLR(id) (1 << (19 - (id))) -#define CIGCTRL_FIELDMODE (1 << 2) -#define CIGCTRL_INVPOLFIELD (1 << 1) -#define CIGCTRL_CAM_INTERLACE (1 << 0) +#define CIGCTRL_IRQ_CLR(id) BIT(19 - (id)) +#define CIGCTRL_FIELDMODE BIT(2) +#define CIGCTRL_INVPOLFIELD BIT(1) +#define CIGCTRL_CAM_INTERLACE BIT(0) /* Y DMA output frame start address. n = 0..3. */ #define S3C_CAMIF_REG_CIYSA(id, n) (0x18 + (id) * 0x54 + (n) * 4) @@ -74,8 +76,8 @@ /* CICOTRGFMT, CIPRTRGFMT - Target format */ #define S3C_CAMIF_REG_CITRGFMT(id, _offs) (0x48 + (id) * (0x34 + (_offs))) -#define CITRGFMT_IN422 (1 << 31) /* only for s3c24xx */ -#define CITRGFMT_OUT422 (1 << 30) /* only for s3c24xx */ +#define CITRGFMT_IN422 BIT(31) /* only for s3c24xx */ +#define CITRGFMT_OUT422 BIT(30) /* only for s3c24xx */ #define CITRGFMT_OUTFORMAT_YCBCR420 (0 << 29) /* only for s3c6410 */ #define CITRGFMT_OUTFORMAT_YCBCR422 (1 << 29) /* only for s3c6410 */ #define CITRGFMT_OUTFORMAT_YCBCR422I (2 << 29) /* only for s3c6410 */ @@ -88,7 +90,7 @@ #define CITRGFMT_FLIP_180 (3 << 14) #define CITRGFMT_FLIP_MASK (3 << 14) /* Preview path only */ -#define CITRGFMT_ROT90_PR (1 << 13) +#define CITRGFMT_ROT90_PR BIT(13) #define CITRGFMT_TARGETVSIZE(x) ((x) << 0) #define CITRGFMT_TARGETSIZE_MASK ((0x1fff << 16) | 0x1fff) @@ -102,7 +104,7 @@ #define CICTRL_RGBBURST2(x) ((x) << 14) #define CICTRL_CBURST1(x) ((x) << 9) #define CICTRL_CBURST2(x) ((x) << 4) -#define CICTRL_LASTIRQ_ENABLE (1 << 2) +#define CICTRL_LASTIRQ_ENABLE BIT(2) #define CICTRL_ORDER422_MASK (3 << 0) /* CICOSCPRERATIO, CIPRSCPRERATIO. Pre-scaler control 1. */ @@ -113,22 +115,22 @@ /* CICOSCCTRL, CIPRSCCTRL. Main scaler control. */ #define S3C_CAMIF_REG_CISCCTRL(id, _offs) (0x58 + (id) * (0x34 + (_offs))) -#define CISCCTRL_SCALERBYPASS (1 << 31) +#define CISCCTRL_SCALERBYPASS BIT(31) /* s3c244x preview path only, s3c64xx both */ -#define CIPRSCCTRL_SAMPLE (1 << 31) +#define CIPRSCCTRL_SAMPLE BIT(31) /* 0 - 16-bit RGB, 1 - 24-bit RGB */ -#define CIPRSCCTRL_RGB_FORMAT_24BIT (1 << 30) /* only for s3c244x */ -#define CIPRSCCTRL_SCALEUP_H (1 << 29) /* only for s3c244x */ -#define CIPRSCCTRL_SCALEUP_V (1 << 28) /* only for s3c244x */ +#define CIPRSCCTRL_RGB_FORMAT_24BIT BIT(30) /* only for s3c244x */ +#define CIPRSCCTRL_SCALEUP_H BIT(29) /* only for s3c244x */ +#define CIPRSCCTRL_SCALEUP_V BIT(28) /* only for s3c244x */ /* s3c64xx */ -#define CISCCTRL_SCALEUP_H (1 << 30) -#define CISCCTRL_SCALEUP_V (1 << 29) +#define CISCCTRL_SCALEUP_H BIT(30) +#define CISCCTRL_SCALEUP_V BIT(29) #define CISCCTRL_SCALEUP_MASK (0x3 << 29) -#define CISCCTRL_CSCR2Y_WIDE (1 << 28) -#define CISCCTRL_CSCY2R_WIDE (1 << 27) -#define CISCCTRL_LCDPATHEN_FIFO (1 << 26) -#define CISCCTRL_INTERLACE (1 << 25) -#define CISCCTRL_SCALERSTART (1 << 15) +#define CISCCTRL_CSCR2Y_WIDE BIT(28) +#define CISCCTRL_CSCY2R_WIDE BIT(27) +#define CISCCTRL_LCDPATHEN_FIFO BIT(26) +#define CISCCTRL_INTERLACE BIT(25) +#define CISCCTRL_SCALERSTART BIT(15) #define CISCCTRL_INRGB_FMT_RGB565 (0 << 13) #define CISCCTRL_INRGB_FMT_RGB666 (1 << 13) #define CISCCTRL_INRGB_FMT_RGB888 (2 << 13) @@ -137,8 +139,8 @@ #define CISCCTRL_OUTRGB_FMT_RGB666 (1 << 11) #define CISCCTRL_OUTRGB_FMT_RGB888 (2 << 11) #define CISCCTRL_OUTRGB_FMT_MASK (3 << 11) -#define CISCCTRL_EXTRGB_EXTENSION (1 << 10) -#define CISCCTRL_ONE2ONE (1 << 9) +#define CISCCTRL_EXTRGB_EXTENSION BIT(10) +#define CISCCTRL_ONE2ONE BIT(9) #define CISCCTRL_MAIN_RATIO_MASK (0x1ff << 16 | 0x1ff) /* CICOTAREA, CIPRTAREA. Target area for DMA (Hsize x Vsize). */ @@ -147,38 +149,38 @@ /* Codec (id = 0) or preview (id = 1) path status. */ #define S3C_CAMIF_REG_CISTATUS(id, _offs) (0x64 + (id) * (0x34 + (_offs))) -#define CISTATUS_OVFIY_STATUS (1 << 31) -#define CISTATUS_OVFICB_STATUS (1 << 30) -#define CISTATUS_OVFICR_STATUS (1 << 29) +#define CISTATUS_OVFIY_STATUS BIT(31) +#define CISTATUS_OVFICB_STATUS BIT(30) +#define CISTATUS_OVFICR_STATUS BIT(29) #define CISTATUS_OVF_MASK (0x7 << 29) #define CIPRSTATUS_OVF_MASK (0x3 << 30) -#define CISTATUS_VSYNC_STATUS (1 << 28) +#define CISTATUS_VSYNC_STATUS BIT(28) #define CISTATUS_FRAMECNT_MASK (3 << 26) #define CISTATUS_FRAMECNT(__reg) (((__reg) >> 26) & 0x3) -#define CISTATUS_WINOFSTEN_STATUS (1 << 25) -#define CISTATUS_IMGCPTEN_STATUS (1 << 22) -#define CISTATUS_IMGCPTENSC_STATUS (1 << 21) -#define CISTATUS_VSYNC_A_STATUS (1 << 20) -#define CISTATUS_FRAMEEND_STATUS (1 << 19) /* 17 on s3c64xx */ +#define CISTATUS_WINOFSTEN_STATUS BIT(25) +#define CISTATUS_IMGCPTEN_STATUS BIT(22) +#define CISTATUS_IMGCPTENSC_STATUS BIT(21) +#define CISTATUS_VSYNC_A_STATUS BIT(20) +#define CISTATUS_FRAMEEND_STATUS BIT(19) /* 17 on s3c64xx */ /* Image capture enable */ #define S3C_CAMIF_REG_CIIMGCPT(_offs) (0xa0 + (_offs)) -#define CIIMGCPT_IMGCPTEN (1 << 31) -#define CIIMGCPT_IMGCPTEN_SC(id) (1 << (30 - (id))) +#define CIIMGCPT_IMGCPTEN BIT(31) +#define CIIMGCPT_IMGCPTEN_SC(id) BIT(30 - (id)) /* Frame control: 1 - one-shot, 0 - free run */ -#define CIIMGCPT_CPT_FREN_ENABLE(id) (1 << (25 - (id))) +#define CIIMGCPT_CPT_FREN_ENABLE(id) BIT(25 - (id)) #define CIIMGCPT_CPT_FRMOD_ENABLE (0 << 18) -#define CIIMGCPT_CPT_FRMOD_CNT (1 << 18) +#define CIIMGCPT_CPT_FRMOD_CNT BIT(18) /* Capture sequence */ #define S3C_CAMIF_REG_CICPTSEQ 0xc4 /* Image effects */ #define S3C_CAMIF_REG_CIIMGEFF(_offs) (0xb0 + (_offs)) -#define CIIMGEFF_IE_ENABLE(id) (1 << (30 + (id))) +#define CIIMGEFF_IE_ENABLE(id) BIT(30 + (id)) #define CIIMGEFF_IE_ENABLE_MASK (3 << 30) /* Image effect: 1 - after scaler, 0 - before scaler */ -#define CIIMGEFF_IE_AFTER_SC (1 << 29) +#define CIIMGEFF_IE_AFTER_SC BIT(29) #define CIIMGEFF_FIN_MASK (7 << 26) #define CIIMGEFF_FIN_BYPASS (0 << 26) #define CIIMGEFF_FIN_ARBITRARY (1 << 26) @@ -207,8 +209,8 @@ /* Real input DMA data size. n = 0 - codec, 1 - preview. */ #define S3C_CAMIF_REG_MSWIDTH(id) (0xf8 + (id) * 0x2c) -#define AUTOLOAD_ENABLE (1 << 31) -#define ADDR_CH_DIS (1 << 30) +#define AUTOLOAD_ENABLE BIT(31) +#define ADDR_CH_DIS BIT(30) #define MSHEIGHT(x) (((x) & 0x3ff) << 16) #define MSWIDTH(x) ((x) & 0x3ff) @@ -219,12 +221,12 @@ #define MSCTRL_ORDER422_M_CBYCRY (2 << 4) #define MSCTRL_ORDER422_M_CRYCBY (3 << 4) /* 0 - camera, 1 - DMA */ -#define MSCTRL_SEL_DMA_CAM (1 << 3) +#define MSCTRL_SEL_DMA_CAM BIT(3) #define MSCTRL_INFORMAT_M_YCBCR420 (0 << 1) #define MSCTRL_INFORMAT_M_YCBCR422 (1 << 1) #define MSCTRL_INFORMAT_M_YCBCR422I (2 << 1) #define MSCTRL_INFORMAT_M_RGB (3 << 1) -#define MSCTRL_ENVID_M (1 << 0) +#define MSCTRL_ENVID_M BIT(0) /* CICOSCOSY, CIPRSCOSY. Scan line Y/Cb/Cr offset. */ #define S3C_CAMIF_REG_CISSY(id) (0x12c + (id) * 0x0c) |