linux/drivers/media/platform/exynos4-is/fimc-lite-reg.h
Mauro Carvalho Chehab cce8ccca80 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>
2019-08-26 14:08:50 -03:00

156 lines
5.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
*/
#ifndef FIMC_LITE_REG_H_
#define FIMC_LITE_REG_H_
#include <linux/bitops.h>
#include "fimc-lite.h"
/* Camera Source size */
#define FLITE_REG_CISRCSIZE 0x00
#define FLITE_REG_CISRCSIZE_ORDER422_IN_YCBYCR (0 << 14)
#define FLITE_REG_CISRCSIZE_ORDER422_IN_YCRYCB (1 << 14)
#define FLITE_REG_CISRCSIZE_ORDER422_IN_CBYCRY (2 << 14)
#define FLITE_REG_CISRCSIZE_ORDER422_IN_CRYCBY (3 << 14)
#define FLITE_REG_CISRCSIZE_ORDER422_MASK (0x3 << 14)
#define FLITE_REG_CISRCSIZE_SIZE_CAM_MASK (0x3fff << 16 | 0x3fff)
/* Global control */
#define FLITE_REG_CIGCTRL 0x04
#define FLITE_REG_CIGCTRL_YUV422_1P (0x1e << 24)
#define FLITE_REG_CIGCTRL_RAW8 (0x2a << 24)
#define FLITE_REG_CIGCTRL_RAW10 (0x2b << 24)
#define FLITE_REG_CIGCTRL_RAW12 (0x2c << 24)
#define FLITE_REG_CIGCTRL_RAW14 (0x2d << 24)
/* User defined formats. x = 0...15 */
#define FLITE_REG_CIGCTRL_USER(x) ((0x30 + x - 1) << 24)
#define FLITE_REG_CIGCTRL_FMT_MASK (0x3f << 24)
#define FLITE_REG_CIGCTRL_SHADOWMASK_DISABLE BIT(21)
#define FLITE_REG_CIGCTRL_ODMA_DISABLE BIT(20)
#define FLITE_REG_CIGCTRL_SWRST_REQ BIT(19)
#define FLITE_REG_CIGCTRL_SWRST_RDY BIT(18)
#define FLITE_REG_CIGCTRL_SWRST BIT(17)
#define FLITE_REG_CIGCTRL_TEST_PATTERN_COLORBAR BIT(15)
#define FLITE_REG_CIGCTRL_INVPOLPCLK BIT(14)
#define FLITE_REG_CIGCTRL_INVPOLVSYNC BIT(13)
#define FLITE_REG_CIGCTRL_INVPOLHREF BIT(12)
/* Interrupts mask bits (1 disables an interrupt) */
#define FLITE_REG_CIGCTRL_IRQ_LASTEN BIT(8)
#define FLITE_REG_CIGCTRL_IRQ_ENDEN BIT(7)
#define FLITE_REG_CIGCTRL_IRQ_STARTEN BIT(6)
#define FLITE_REG_CIGCTRL_IRQ_OVFEN BIT(5)
#define FLITE_REG_CIGCTRL_IRQ_DISABLE_MASK (0xf << 5)
#define FLITE_REG_CIGCTRL_SELCAM_MIPI BIT(3)
/* Image Capture Enable */
#define FLITE_REG_CIIMGCPT 0x08
#define FLITE_REG_CIIMGCPT_IMGCPTEN BIT(31)
#define FLITE_REG_CIIMGCPT_CPT_FREN BIT(25)
#define FLITE_REG_CIIMGCPT_CPT_MOD_FRCNT (1 << 18)
#define FLITE_REG_CIIMGCPT_CPT_MOD_FREN (0 << 18)
/* Capture Sequence */
#define FLITE_REG_CICPTSEQ 0x0c
/* Camera Window Offset */
#define FLITE_REG_CIWDOFST 0x10
#define FLITE_REG_CIWDOFST_WINOFSEN BIT(31)
#define FLITE_REG_CIWDOFST_CLROVIY BIT(31)
#define FLITE_REG_CIWDOFST_CLROVFICB BIT(15)
#define FLITE_REG_CIWDOFST_CLROVFICR BIT(14)
#define FLITE_REG_CIWDOFST_OFST_MASK ((0x1fff << 16) | 0x1fff)
/* Camera Window Offset2 */
#define FLITE_REG_CIWDOFST2 0x14
/* Camera Output DMA Format */
#define FLITE_REG_CIODMAFMT 0x18
#define FLITE_REG_CIODMAFMT_RAW_CON BIT(15)
#define FLITE_REG_CIODMAFMT_PACK12 BIT(14)
#define FLITE_REG_CIODMAFMT_YCBYCR (0 << 4)
#define FLITE_REG_CIODMAFMT_YCRYCB (1 << 4)
#define FLITE_REG_CIODMAFMT_CBYCRY (2 << 4)
#define FLITE_REG_CIODMAFMT_CRYCBY (3 << 4)
#define FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK (0x3 << 4)
/* Camera Output Canvas */
#define FLITE_REG_CIOCAN 0x20
#define FLITE_REG_CIOCAN_MASK ((0x3fff << 16) | 0x3fff)
/* Camera Output DMA Offset */
#define FLITE_REG_CIOOFF 0x24
#define FLITE_REG_CIOOFF_MASK ((0x3fff << 16) | 0x3fff)
/* Camera Output DMA Start Address */
#define FLITE_REG_CIOSA 0x30
/* Camera Status */
#define FLITE_REG_CISTATUS 0x40
#define FLITE_REG_CISTATUS_MIPI_VVALID BIT(22)
#define FLITE_REG_CISTATUS_MIPI_HVALID BIT(21)
#define FLITE_REG_CISTATUS_MIPI_DVALID BIT(20)
#define FLITE_REG_CISTATUS_ITU_VSYNC BIT(14)
#define FLITE_REG_CISTATUS_ITU_HREFF BIT(13)
#define FLITE_REG_CISTATUS_OVFIY BIT(10)
#define FLITE_REG_CISTATUS_OVFICB BIT(9)
#define FLITE_REG_CISTATUS_OVFICR BIT(8)
#define FLITE_REG_CISTATUS_IRQ_SRC_OVERFLOW BIT(7)
#define FLITE_REG_CISTATUS_IRQ_SRC_LASTCAPEND BIT(6)
#define FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART BIT(5)
#define FLITE_REG_CISTATUS_IRQ_SRC_FRMEND BIT(4)
#define FLITE_REG_CISTATUS_IRQ_CAM BIT(0)
#define FLITE_REG_CISTATUS_IRQ_MASK (0xf << 4)
/* Camera Status2 */
#define FLITE_REG_CISTATUS2 0x44
#define FLITE_REG_CISTATUS2_LASTCAPEND BIT(1)
#define FLITE_REG_CISTATUS2_FRMEND BIT(0)
/* Qos Threshold */
#define FLITE_REG_CITHOLD 0xf0
#define FLITE_REG_CITHOLD_W_QOS_EN BIT(30)
/* Camera General Purpose */
#define FLITE_REG_CIGENERAL 0xfc
/* b0: 1 - camera B, 0 - camera A */
#define FLITE_REG_CIGENERAL_CAM_B BIT(0)
#define FLITE_REG_CIFCNTSEQ 0x100
#define FLITE_REG_CIOSAN(x) (0x200 + (4 * (x)))
/* ----------------------------------------------------------------------------
* Function declarations
*/
void flite_hw_reset(struct fimc_lite *dev);
void flite_hw_clear_pending_irq(struct fimc_lite *dev);
u32 flite_hw_get_interrupt_source(struct fimc_lite *dev);
void flite_hw_clear_last_capture_end(struct fimc_lite *dev);
void flite_hw_set_interrupt_mask(struct fimc_lite *dev);
void flite_hw_capture_start(struct fimc_lite *dev);
void flite_hw_capture_stop(struct fimc_lite *dev);
void flite_hw_set_camera_bus(struct fimc_lite *dev,
struct fimc_source_info *s_info);
void flite_hw_set_camera_polarity(struct fimc_lite *dev,
struct fimc_source_info *cam);
void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f);
void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f);
void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f,
bool enable);
void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f);
void flite_hw_set_test_pattern(struct fimc_lite *dev, bool on);
void flite_hw_dump_regs(struct fimc_lite *dev, const char *label);
void flite_hw_set_dma_buffer(struct fimc_lite *dev, struct flite_buffer *buf);
void flite_hw_mask_dma_buffer(struct fimc_lite *dev, u32 index);
static inline void flite_hw_set_dma_buf_mask(struct fimc_lite *dev, u32 mask)
{
writel(mask, dev->regs + FLITE_REG_CIFCNTSEQ);
}
#endif /* FIMC_LITE_REG_H */