| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jonathan Corbet | 994 | 83.25% | 7 | 26.92% |
| Libin Yang | 133 | 11.14% | 4 | 15.38% |
| Hans Verkuil | 38 | 3.18% | 8 | 30.77% |
| Lubomir Rintel | 16 | 1.34% | 2 | 7.69% |
| Javier Martin | 7 | 0.59% | 1 | 3.85% |
| Peter Senna Tschudin | 3 | 0.25% | 1 | 3.85% |
| Junghak Sung | 1 | 0.08% | 1 | 3.85% |
| Greg Kroah-Hartman | 1 | 0.08% | 1 | 3.85% |
| Boris Brezillon | 1 | 0.08% | 1 | 3.85% |
| Total | 1194 | 26 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * Marvell camera core structures. * * Copyright 2011 Jonathan Corbet corbet@lwn.net */ #ifndef _MCAM_CORE_H #define _MCAM_CORE_H #include <linux/list.h> #include <linux/clk-provider.h> #include <media/v4l2-common.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-dev.h> #include <media/videobuf2-v4l2.h> /* * Create our own symbols for the supported buffer modes, but, for now, * base them entirely on which videobuf2 options have been selected. */ #if IS_ENABLED(CONFIG_VIDEOBUF2_VMALLOC) #define MCAM_MODE_VMALLOC 1 #endif #if IS_ENABLED(CONFIG_VIDEOBUF2_DMA_CONTIG) #define MCAM_MODE_DMA_CONTIG 1 #endif #if IS_ENABLED(CONFIG_VIDEOBUF2_DMA_SG) #define MCAM_MODE_DMA_SG 1 #endif #if !defined(MCAM_MODE_VMALLOC) && !defined(MCAM_MODE_DMA_CONTIG) && \ !defined(MCAM_MODE_DMA_SG) #error One of the vb2 buffer modes must be selected in the config #endif enum mcam_state { S_NOTREADY, /* Not yet initialized */ S_IDLE, /* Just hanging around */ S_FLAKED, /* Some sort of problem */ S_STREAMING, /* Streaming data */ S_BUFWAIT /* streaming requested but no buffers yet */ }; #define MAX_DMA_BUFS 3 /* * Different platforms work best with different buffer modes, so we * let the platform pick. */ enum mcam_buffer_mode { B_vmalloc = 0, B_DMA_contig = 1, B_DMA_sg = 2 }; enum mcam_chip_id { MCAM_CAFE, MCAM_ARMADA610, }; /* * Is a given buffer mode supported by the current kernel configuration? */ static inline int mcam_buffer_mode_supported(enum mcam_buffer_mode mode) { switch (mode) { #ifdef MCAM_MODE_VMALLOC case B_vmalloc: #endif #ifdef MCAM_MODE_DMA_CONTIG case B_DMA_contig: #endif #ifdef MCAM_MODE_DMA_SG case B_DMA_sg: #endif return 1; default: return 0; } } /* * Basic frame states */ struct mcam_frame_state { unsigned int frames; unsigned int singles; unsigned int delivered; }; #define NR_MCAM_CLK 3 /* * A description of one of our devices. * Locking: controlled by s_mutex. Certain fields, however, require * the dev_lock spinlock; they are marked as such by comments. * dev_lock is also required for access to device registers. */ struct mcam_camera { /* * These fields should be set by the platform code prior to * calling mcam_register(). */ unsigned char __iomem *regs; unsigned regs_size; /* size in bytes of the register space */ spinlock_t dev_lock; struct device *dev; /* For messages, dma alloc */ enum mcam_chip_id chip_id; enum mcam_buffer_mode buffer_mode; int mclk_src; /* which clock source the mclk derives from */ int mclk_div; /* Clock Divider Value for MCLK */ enum v4l2_mbus_type bus_type; /* MIPI support */ /* The dphy config value, allocated in board file * dphy[0]: DPHY3 * dphy[1]: DPHY5 * dphy[2]: DPHY6 */ int *dphy; bool mipi_enabled; /* flag whether mipi is enabled already */ int lane; /* lane number */ /* clock tree support */ struct clk *clk[NR_MCAM_CLK]; struct clk_hw mclk_hw; struct clk *mclk; /* * Callbacks from the core to the platform code. */ int (*plat_power_up) (struct mcam_camera *cam); void (*plat_power_down) (struct mcam_camera *cam); void (*calc_dphy) (struct mcam_camera *cam); /* * Everything below here is private to the mcam core and * should not be touched by the platform code. */ struct v4l2_device v4l2_dev; struct v4l2_ctrl_handler ctrl_handler; enum mcam_state state; unsigned long flags; /* Buffer status, mainly (dev_lock) */ struct mcam_frame_state frame_state; /* Frame state counter */ /* * Subsystem structures. */ struct video_device vdev; struct v4l2_async_notifier notifier; struct v4l2_subdev *sensor; /* Videobuf2 stuff */ struct vb2_queue vb_queue; struct list_head buffers; /* Available frames */ unsigned int nbufs; /* How many are alloc'd */ int next_buf; /* Next to consume (dev_lock) */ char bus_info[32]; /* querycap bus_info */ /* DMA buffers - vmalloc mode */ #ifdef MCAM_MODE_VMALLOC unsigned int dma_buf_size; /* allocated size */ void *dma_bufs[MAX_DMA_BUFS]; /* Internal buffer addresses */ dma_addr_t dma_handles[MAX_DMA_BUFS]; /* Buffer bus addresses */ struct tasklet_struct s_tasklet; #endif unsigned int sequence; /* Frame sequence number */ unsigned int buf_seq[MAX_DMA_BUFS]; /* Sequence for individual bufs */ /* DMA buffers - DMA modes */ struct mcam_vb_buffer *vb_bufs[MAX_DMA_BUFS]; /* Mode-specific ops, set at open time */ void (*dma_setup)(struct mcam_camera *cam); void (*frame_complete)(struct mcam_camera *cam, int frame); /* Current operating parameters */ struct v4l2_pix_format pix_format; u32 mbus_code; /* Locks */ struct mutex s_mutex; /* Access to this structure */ }; /* * Register I/O functions. These are here because the platform code * may legitimately need to mess with the register space. */ /* * Device register I/O */ static inline void mcam_reg_write(struct mcam_camera *cam, unsigned int reg, unsigned int val) { iowrite32(val, cam->regs + reg); } static inline unsigned int mcam_reg_read(struct mcam_camera *cam, unsigned int reg) { return ioread32(cam->regs + reg); } static inline void mcam_reg_write_mask(struct mcam_camera *cam, unsigned int reg, unsigned int val, unsigned int mask) { unsigned int v = mcam_reg_read(cam, reg); v = (v & ~mask) | (val & mask); mcam_reg_write(cam, reg, v); } static inline void mcam_reg_clear_bit(struct mcam_camera *cam, unsigned int reg, unsigned int val) { mcam_reg_write_mask(cam, reg, 0, val); } static inline void mcam_reg_set_bit(struct mcam_camera *cam, unsigned int reg, unsigned int val) { mcam_reg_write_mask(cam, reg, val, val); } /* * Functions for use by platform code. */ int mccic_register(struct mcam_camera *cam); int mccic_irq(struct mcam_camera *cam, unsigned int irqs); void mccic_shutdown(struct mcam_camera *cam); void mccic_suspend(struct mcam_camera *cam); int mccic_resume(struct mcam_camera *cam); /* * Register definitions for the m88alp01 camera interface. Offsets in bytes * as given in the spec. */ #define REG_Y0BAR 0x00 #define REG_Y1BAR 0x04 #define REG_Y2BAR 0x08 #define REG_U0BAR 0x0c #define REG_U1BAR 0x10 #define REG_U2BAR 0x14 #define REG_V0BAR 0x18 #define REG_V1BAR 0x1C #define REG_V2BAR 0x20 /* * register definitions for MIPI support */ #define REG_CSI2_CTRL0 0x100 #define CSI2_C0_MIPI_EN (0x1 << 0) #define CSI2_C0_ACT_LANE(n) ((n-1) << 1) #define REG_CSI2_DPHY3 0x12c #define REG_CSI2_DPHY5 0x134 #define REG_CSI2_DPHY6 0x138 /* ... */ #define REG_IMGPITCH 0x24 /* Image pitch register */ #define IMGP_YP_SHFT 2 /* Y pitch params */ #define IMGP_YP_MASK 0x00003ffc /* Y pitch field */ #define IMGP_UVP_SHFT 18 /* UV pitch (planar) */ #define IMGP_UVP_MASK 0x3ffc0000 #define REG_IRQSTATRAW 0x28 /* RAW IRQ Status */ #define IRQ_EOF0 0x00000001 /* End of frame 0 */ #define IRQ_EOF1 0x00000002 /* End of frame 1 */ #define IRQ_EOF2 0x00000004 /* End of frame 2 */ #define IRQ_SOF0 0x00000008 /* Start of frame 0 */ #define IRQ_SOF1 0x00000010 /* Start of frame 1 */ #define IRQ_SOF2 0x00000020 /* Start of frame 2 */ #define IRQ_OVERFLOW 0x00000040 /* FIFO overflow */ #define IRQ_TWSIW 0x00010000 /* TWSI (smbus) write */ #define IRQ_TWSIR 0x00020000 /* TWSI read */ #define IRQ_TWSIE 0x00040000 /* TWSI error */ #define TWSIIRQS (IRQ_TWSIW|IRQ_TWSIR|IRQ_TWSIE) #define FRAMEIRQS (IRQ_EOF0|IRQ_EOF1|IRQ_EOF2|IRQ_SOF0|IRQ_SOF1|IRQ_SOF2) #define ALLIRQS (TWSIIRQS|FRAMEIRQS|IRQ_OVERFLOW) #define REG_IRQMASK 0x2c /* IRQ mask - same bits as IRQSTAT */ #define REG_IRQSTAT 0x30 /* IRQ status / clear */ #define REG_IMGSIZE 0x34 /* Image size */ #define IMGSZ_V_MASK 0x1fff0000 #define IMGSZ_V_SHIFT 16 #define IMGSZ_H_MASK 0x00003fff #define REG_IMGOFFSET 0x38 /* IMage offset */ #define REG_CTRL0 0x3c /* Control 0 */ #define C0_ENABLE 0x00000001 /* Makes the whole thing go */ /* Mask for all the format bits */ #define C0_DF_MASK 0x00fffffc /* Bits 2-23 */ /* RGB ordering */ #define C0_RGB4_RGBX 0x00000000 #define C0_RGB4_XRGB 0x00000004 #define C0_RGB4_BGRX 0x00000008 #define C0_RGB4_XBGR 0x0000000c #define C0_RGB5_RGGB 0x00000000 #define C0_RGB5_GRBG 0x00000004 #define C0_RGB5_GBRG 0x00000008 #define C0_RGB5_BGGR 0x0000000c /* Spec has two fields for DIN and DOUT, but they must match, so combine them here. */ #define C0_DF_YUV 0x00000000 /* Data is YUV */ #define C0_DF_RGB 0x000000a0 /* ... RGB */ #define C0_DF_BAYER 0x00000140 /* ... Bayer */ /* 8-8-8 must be missing from the below - ask */ #define C0_RGBF_565 0x00000000 #define C0_RGBF_444 0x00000800 #define C0_RGB_BGR 0x00001000 /* Blue comes first */ #define C0_YUV_PLANAR 0x00000000 /* YUV 422 planar format */ #define C0_YUV_PACKED 0x00008000 /* YUV 422 packed */ #define C0_YUV_420PL 0x0000a000 /* YUV 420 planar */ /* Think that 420 packed must be 111 - ask */ #define C0_YUVE_YUYV 0x00000000 /* Y1CbY0Cr */ #define C0_YUVE_YVYU 0x00010000 /* Y1CrY0Cb */ #define C0_YUVE_VYUY 0x00020000 /* CrY1CbY0 */ #define C0_YUVE_UYVY 0x00030000 /* CbY1CrY0 */ #define C0_YUVE_NOSWAP 0x00000000 /* no bytes swapping */ #define C0_YUVE_SWAP13 0x00010000 /* swap byte 1 and 3 */ #define C0_YUVE_SWAP24 0x00020000 /* swap byte 2 and 4 */ #define C0_YUVE_SWAP1324 0x00030000 /* swap bytes 1&3 and 2&4 */ /* Bayer bits 18,19 if needed */ #define C0_EOF_VSYNC 0x00400000 /* Generate EOF by VSYNC */ #define C0_VEDGE_CTRL 0x00800000 /* Detect falling edge of VSYNC */ #define C0_HPOL_LOW 0x01000000 /* HSYNC polarity active low */ #define C0_VPOL_LOW 0x02000000 /* VSYNC polarity active low */ #define C0_VCLK_LOW 0x04000000 /* VCLK on falling edge */ #define C0_DOWNSCALE 0x08000000 /* Enable downscaler */ /* SIFMODE */ #define C0_SIF_HVSYNC 0x00000000 /* Use H/VSYNC */ #define C0_SOF_NOSYNC 0x40000000 /* Use inband active signaling */ #define C0_SIFM_MASK 0xc0000000 /* SIF mode bits */ /* Bits below C1_444ALPHA are not present in Cafe */ #define REG_CTRL1 0x40 /* Control 1 */ #define C1_CLKGATE 0x00000001 /* Sensor clock gate */ #define C1_DESC_ENA 0x00000100 /* DMA descriptor enable */ #define C1_DESC_3WORD 0x00000200 /* Three-word descriptors used */ #define C1_444ALPHA 0x00f00000 /* Alpha field in RGB444 */ #define C1_ALPHA_SHFT 20 #define C1_DMAB32 0x00000000 /* 32-byte DMA burst */ #define C1_DMAB16 0x02000000 /* 16-byte DMA burst */ #define C1_DMAB64 0x04000000 /* 64-byte DMA burst */ #define C1_DMAB_MASK 0x06000000 #define C1_TWOBUFS 0x08000000 /* Use only two DMA buffers */ #define C1_PWRDWN 0x10000000 /* Power down */ #define REG_CLKCTRL 0x88 /* Clock control */ #define CLK_DIV_MASK 0x0000ffff /* Upper bits RW "reserved" */ /* This appears to be a Cafe-only register */ #define REG_UBAR 0xc4 /* Upper base address register */ /* Armada 610 DMA descriptor registers */ #define REG_DMA_DESC_Y 0x200 #define REG_DMA_DESC_U 0x204 #define REG_DMA_DESC_V 0x208 #define REG_DESC_LEN_Y 0x20c /* Lengths are in bytes */ #define REG_DESC_LEN_U 0x210 #define REG_DESC_LEN_V 0x214 /* * Useful stuff that probably belongs somewhere global. */ #define VGA_WIDTH 640 #define VGA_HEIGHT 480 #endif /* _MCAM_CORE_H */
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