Add register definitions and register API for FIMC-LITE devices.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
--- /dev/null
+/*
+ * Register interface file for EXYNOS FIMC-LITE (camera interface) driver
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <media/s5p_fimc.h>
+
+#include "fimc-lite-reg.h"
+#include "fimc-lite.h"
+#include "fimc-core.h"
+
+#define FLITE_RESET_TIMEOUT 50 /* in ms */
+
+void flite_hw_reset(struct fimc_lite *dev)
+{
+ unsigned long end = jiffies + msecs_to_jiffies(FLITE_RESET_TIMEOUT);
+ u32 cfg;
+
+ cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ cfg |= FLITE_REG_CIGCTRL_SWRST_REQ;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+
+ while (time_is_after_jiffies(end)) {
+ cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ if (cfg & FLITE_REG_CIGCTRL_SWRST_RDY)
+ break;
+ usleep_range(1000, 5000);
+ }
+
+ cfg |= FLITE_REG_CIGCTRL_SWRST;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+}
+
+void flite_hw_clear_pending_irq(struct fimc_lite *dev)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CISTATUS);
+ cfg &= ~FLITE_REG_CISTATUS_IRQ_CAM;
+ writel(cfg, dev->regs + FLITE_REG_CISTATUS);
+}
+
+u32 flite_hw_get_interrupt_source(struct fimc_lite *dev)
+{
+ u32 intsrc = readl(dev->regs + FLITE_REG_CISTATUS);
+ return intsrc & FLITE_REG_CISTATUS_IRQ_MASK;
+}
+
+void flite_hw_clear_last_capture_end(struct fimc_lite *dev)
+{
+
+ u32 cfg = readl(dev->regs + FLITE_REG_CISTATUS2);
+ cfg &= ~FLITE_REG_CISTATUS2_LASTCAPEND;
+ writel(cfg, dev->regs + FLITE_REG_CISTATUS2);
+}
+
+void flite_hw_set_interrupt_mask(struct fimc_lite *dev)
+{
+ u32 cfg, intsrc;
+
+ /* Select interrupts to be enabled for each output mode */
+ if (dev->out_path == FIMC_IO_DMA) {
+ intsrc = FLITE_REG_CIGCTRL_IRQ_OVFEN |
+ FLITE_REG_CIGCTRL_IRQ_LASTEN |
+ FLITE_REG_CIGCTRL_IRQ_STARTEN;
+ } else {
+ /* An output to the FIMC-IS */
+ intsrc = FLITE_REG_CIGCTRL_IRQ_OVFEN |
+ FLITE_REG_CIGCTRL_IRQ_LASTEN;
+ }
+
+ cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ cfg |= FLITE_REG_CIGCTRL_IRQ_DISABLE_MASK;
+ cfg &= ~intsrc;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+}
+
+void flite_hw_capture_start(struct fimc_lite *dev)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIIMGCPT);
+ cfg |= FLITE_REG_CIIMGCPT_IMGCPTEN;
+ writel(cfg, dev->regs + FLITE_REG_CIIMGCPT);
+}
+
+void flite_hw_capture_stop(struct fimc_lite *dev)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIIMGCPT);
+ cfg &= ~FLITE_REG_CIIMGCPT_IMGCPTEN;
+ writel(cfg, dev->regs + FLITE_REG_CIIMGCPT);
+}
+
+/*
+ * Test pattern (color bars) enable/disable. External sensor
+ * pixel clock must be active for the test pattern to work.
+ */
+void flite_hw_set_test_pattern(struct fimc_lite *dev, bool on)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ if (on)
+ cfg |= FLITE_REG_CIGCTRL_TEST_PATTERN_COLORBAR;
+ else
+ cfg &= ~FLITE_REG_CIGCTRL_TEST_PATTERN_COLORBAR;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+}
+
+static const u32 src_pixfmt_map[8][3] = {
+ { V4L2_MBUS_FMT_YUYV8_2X8, FLITE_REG_CISRCSIZE_ORDER422_IN_YCBYCR,
+ FLITE_REG_CIGCTRL_YUV422_1P },
+ { V4L2_MBUS_FMT_YVYU8_2X8, FLITE_REG_CISRCSIZE_ORDER422_IN_YCRYCB,
+ FLITE_REG_CIGCTRL_YUV422_1P },
+ { V4L2_MBUS_FMT_UYVY8_2X8, FLITE_REG_CISRCSIZE_ORDER422_IN_CBYCRY,
+ FLITE_REG_CIGCTRL_YUV422_1P },
+ { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CISRCSIZE_ORDER422_IN_CRYCBY,
+ FLITE_REG_CIGCTRL_YUV422_1P },
+ { V4L2_PIX_FMT_SGRBG8, 0, FLITE_REG_CIGCTRL_RAW8 },
+ { V4L2_PIX_FMT_SGRBG10, 0, FLITE_REG_CIGCTRL_RAW10 },
+ { V4L2_PIX_FMT_SGRBG12, 0, FLITE_REG_CIGCTRL_RAW12 },
+ { V4L2_MBUS_FMT_JPEG_1X8, 0, FLITE_REG_CIGCTRL_USER(1) },
+};
+
+/* Set camera input pixel format and resolution */
+void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
+{
+ enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code;
+ unsigned int i = ARRAY_SIZE(src_pixfmt_map);
+ u32 cfg;
+
+ while (i-- >= 0) {
+ if (src_pixfmt_map[i][0] == pixelcode)
+ break;
+ }
+
+ if (i == 0 && src_pixfmt_map[i][0] != pixelcode) {
+ v4l2_err(dev->vfd,
+ "Unsupported pixel code, falling back to %#08x\n",
+ src_pixfmt_map[i][0]);
+ }
+
+ cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ cfg &= ~FLITE_REG_CIGCTRL_FMT_MASK;
+ cfg |= src_pixfmt_map[i][2];
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+
+ cfg = readl(dev->regs + FLITE_REG_CISRCSIZE);
+ cfg &= ~(FLITE_REG_CISRCSIZE_ORDER422_MASK |
+ FLITE_REG_CISRCSIZE_SIZE_CAM_MASK);
+ cfg |= (f->f_width << 16) | f->f_height;
+ cfg |= src_pixfmt_map[i][1];
+ writel(cfg, dev->regs + FLITE_REG_CISRCSIZE);
+}
+
+/* Set the camera host input window offsets (cropping) */
+void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f)
+{
+ u32 hoff2, voff2;
+ u32 cfg;
+
+ cfg = readl(dev->regs + FLITE_REG_CIWDOFST);
+ cfg &= ~FLITE_REG_CIWDOFST_OFST_MASK;
+ cfg |= (f->rect.left << 16) | f->rect.top;
+ cfg |= FLITE_REG_CIWDOFST_WINOFSEN;
+ writel(cfg, dev->regs + FLITE_REG_CIWDOFST);
+
+ hoff2 = f->f_width - f->rect.width - f->rect.left;
+ voff2 = f->f_height - f->rect.height - f->rect.top;
+
+ cfg = (hoff2 << 16) | voff2;
+ writel(cfg, dev->regs + FLITE_REG_CIWDOFST2);
+}
+
+/* Select camera port (A, B) */
+static void flite_hw_set_camera_port(struct fimc_lite *dev, int id)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIGENERAL);
+ if (id == 0)
+ cfg &= ~FLITE_REG_CIGENERAL_CAM_B;
+ else
+ cfg |= FLITE_REG_CIGENERAL_CAM_B;
+ writel(cfg, dev->regs + FLITE_REG_CIGENERAL);
+}
+
+/* Select serial or parallel bus, camera port (A,B) and set signals polarity */
+void flite_hw_set_camera_bus(struct fimc_lite *dev,
+ struct s5p_fimc_isp_info *s_info)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+ unsigned int flags = s_info->flags;
+
+ if (s_info->bus_type != FIMC_MIPI_CSI2) {
+ cfg &= ~(FLITE_REG_CIGCTRL_SELCAM_MIPI |
+ FLITE_REG_CIGCTRL_INVPOLPCLK |
+ FLITE_REG_CIGCTRL_INVPOLVSYNC |
+ FLITE_REG_CIGCTRL_INVPOLHREF);
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ cfg |= FLITE_REG_CIGCTRL_INVPOLPCLK;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+ cfg |= FLITE_REG_CIGCTRL_INVPOLVSYNC;
+
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+ cfg |= FLITE_REG_CIGCTRL_INVPOLHREF;
+ } else {
+ cfg |= FLITE_REG_CIGCTRL_SELCAM_MIPI;
+ }
+
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+
+ flite_hw_set_camera_port(dev, s_info->mux_id);
+}
+
+void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
+{
+ static const u32 pixcode[4][2] = {
+ { V4L2_MBUS_FMT_YUYV8_2X8, FLITE_REG_CIODMAFMT_YCBYCR },
+ { V4L2_MBUS_FMT_YVYU8_2X8, FLITE_REG_CIODMAFMT_YCRYCB },
+ { V4L2_MBUS_FMT_UYVY8_2X8, FLITE_REG_CIODMAFMT_CBYCRY },
+ { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY },
+ };
+ u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
+ unsigned int i = ARRAY_SIZE(pixcode);
+
+ while (i-- >= 0)
+ if (pixcode[i][0] == dev->fmt->mbus_code)
+ break;
+ cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK;
+ writel(cfg | pixcode[i][1], dev->regs + FLITE_REG_CIODMAFMT);
+}
+
+void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f)
+{
+ u32 cfg;
+
+ /* Maximum output pixel size */
+ cfg = readl(dev->regs + FLITE_REG_CIOCAN);
+ cfg &= ~FLITE_REG_CIOCAN_MASK;
+ cfg = (f->f_height << 16) | f->f_width;
+ writel(cfg, dev->regs + FLITE_REG_CIOCAN);
+
+ /* DMA offsets */
+ cfg = readl(dev->regs + FLITE_REG_CIOOFF);
+ cfg &= ~FLITE_REG_CIOOFF_MASK;
+ cfg |= (f->rect.top << 16) | f->rect.left;
+ writel(cfg, dev->regs + FLITE_REG_CIOOFF);
+}
+
+/* Enable/disable output DMA, set output pixel size and offsets (composition) */
+void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f,
+ bool enable)
+{
+ u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
+
+ if (!enable) {
+ cfg |= FLITE_REG_CIGCTRL_ODMA_DISABLE;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+ return;
+ }
+
+ cfg &= ~FLITE_REG_CIGCTRL_ODMA_DISABLE;
+ writel(cfg, dev->regs + FLITE_REG_CIGCTRL);
+
+ flite_hw_set_out_order(dev, f);
+ flite_hw_set_dma_window(dev, f);
+}
+
+void flite_hw_dump_regs(struct fimc_lite *dev, const char *label)
+{
+ struct {
+ u32 offset;
+ const char * const name;
+ } registers[] = {
+ { 0x00, "CISRCSIZE" },
+ { 0x04, "CIGCTRL" },
+ { 0x08, "CIIMGCPT" },
+ { 0x0c, "CICPTSEQ" },
+ { 0x10, "CIWDOFST" },
+ { 0x14, "CIWDOFST2" },
+ { 0x18, "CIODMAFMT" },
+ { 0x20, "CIOCAN" },
+ { 0x24, "CIOOFF" },
+ { 0x30, "CIOSA" },
+ { 0x40, "CISTATUS" },
+ { 0x44, "CISTATUS2" },
+ { 0xf0, "CITHOLD" },
+ { 0xfc, "CIGENERAL" },
+ };
+ u32 i;
+
+ pr_info("--- %s ---\n", label);
+ for (i = 0; i < ARRAY_SIZE(registers); i++) {
+ u32 cfg = readl(dev->regs + registers[i].offset);
+ pr_info("%s: %s:\t0x%08x\n", __func__, registers[i].name, cfg);
+ }
+}
--- /dev/null
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef FIMC_LITE_REG_H_
+#define FIMC_LITE_REG_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 (1 << 21)
+#define FLITE_REG_CIGCTRL_ODMA_DISABLE (1 << 20)
+#define FLITE_REG_CIGCTRL_SWRST_REQ (1 << 19)
+#define FLITE_REG_CIGCTRL_SWRST_RDY (1 << 18)
+#define FLITE_REG_CIGCTRL_SWRST (1 << 17)
+#define FLITE_REG_CIGCTRL_TEST_PATTERN_COLORBAR (1 << 15)
+#define FLITE_REG_CIGCTRL_INVPOLPCLK (1 << 14)
+#define FLITE_REG_CIGCTRL_INVPOLVSYNC (1 << 13)
+#define FLITE_REG_CIGCTRL_INVPOLHREF (1 << 12)
+/* Interrupts mask bits (1 disables an interrupt) */
+#define FLITE_REG_CIGCTRL_IRQ_LASTEN (1 << 8)
+#define FLITE_REG_CIGCTRL_IRQ_ENDEN (1 << 7)
+#define FLITE_REG_CIGCTRL_IRQ_STARTEN (1 << 6)
+#define FLITE_REG_CIGCTRL_IRQ_OVFEN (1 << 5)
+#define FLITE_REG_CIGCTRL_IRQ_DISABLE_MASK (0xf << 5)
+#define FLITE_REG_CIGCTRL_SELCAM_MIPI (1 << 3)
+
+/* Image Capture Enable */
+#define FLITE_REG_CIIMGCPT 0x08
+#define FLITE_REG_CIIMGCPT_IMGCPTEN (1 << 31)
+#define FLITE_REG_CIIMGCPT_CPT_FREN (1 << 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 (1 << 31)
+#define FLITE_REG_CIWDOFST_CLROVIY (1 << 31)
+#define FLITE_REG_CIWDOFST_CLROVFICB (1 << 15)
+#define FLITE_REG_CIWDOFST_CLROVFICR (1 << 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 (1 << 15)
+#define FLITE_REG_CIODMAFMT_PACK12 (1 << 14)
+#define FLITE_REG_CIODMAFMT_CRYCBY (0 << 4)
+#define FLITE_REG_CIODMAFMT_CBYCRY (1 << 4)
+#define FLITE_REG_CIODMAFMT_YCRYCB (2 << 4)
+#define FLITE_REG_CIODMAFMT_YCBYCR (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 (1 << 22)
+#define FLITE_REG_CISTATUS_MIPI_HVALID (1 << 21)
+#define FLITE_REG_CISTATUS_MIPI_DVALID (1 << 20)
+#define FLITE_REG_CISTATUS_ITU_VSYNC (1 << 14)
+#define FLITE_REG_CISTATUS_ITU_HREFF (1 << 13)
+#define FLITE_REG_CISTATUS_OVFIY (1 << 10)
+#define FLITE_REG_CISTATUS_OVFICB (1 << 9)
+#define FLITE_REG_CISTATUS_OVFICR (1 << 8)
+#define FLITE_REG_CISTATUS_IRQ_SRC_OVERFLOW (1 << 7)
+#define FLITE_REG_CISTATUS_IRQ_SRC_LASTCAPEND (1 << 6)
+#define FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART (1 << 5)
+#define FLITE_REG_CISTATUS_IRQ_SRC_FRMEND (1 << 4)
+#define FLITE_REG_CISTATUS_IRQ_CAM (1 << 0)
+#define FLITE_REG_CISTATUS_IRQ_MASK (0xf << 4)
+
+/* Camera Status2 */
+#define FLITE_REG_CISTATUS2 0x44
+#define FLITE_REG_CISTATUS2_LASTCAPEND (1 << 1)
+#define FLITE_REG_CISTATUS2_FRMEND (1 << 0)
+
+/* Qos Threshold */
+#define FLITE_REG_CITHOLD 0xf0
+#define FLITE_REG_CITHOLD_W_QOS_EN (1 << 30)
+
+/* Camera General Purpose */
+#define FLITE_REG_CIGENERAL 0xfc
+/* b0: 1 - camera B, 0 - camera A */
+#define FLITE_REG_CIGENERAL_CAM_B (1 << 0)
+
+/* ----------------------------------------------------------------------------
+ * 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 s5p_fimc_isp_info *s_info);
+void flite_hw_set_camera_polarity(struct fimc_lite *dev,
+ struct s5p_fimc_isp_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);
+
+static inline void flite_hw_set_output_addr(struct fimc_lite *dev, u32 paddr)
+{
+ writel(paddr, dev->regs + FLITE_REG_CIOSA);
+}
+#endif /* FIMC_LITE_REG_H */
--- /dev/null
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef FIMC_LITE_H_
+#define FIMC_LITE_H_
+
+#include <asm/sizes.h>
+#include <linux/io.h>
+#include <linux/irqreturn.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+#include <media/media-entity.h>
+#include <media/videobuf2-core.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-mediabus.h>
+#include <media/s5p_fimc.h>
+
+#include "fimc-core.h"
+
+#define FIMC_LITE_DRV_NAME "exynos-fimc-lite"
+#define FLITE_CLK_NAME "flite"
+#define FIMC_LITE_MAX_DEVS 2
+#define FLITE_REQ_BUFS_MIN 2
+
+/* Bit index definitions for struct fimc_lite::state */
+enum {
+ ST_FLITE_LPM,
+ ST_FLITE_PENDING,
+ ST_FLITE_RUN,
+ ST_FLITE_STREAM,
+ ST_FLITE_SUSPENDED,
+ ST_FLITE_OFF,
+ ST_FLITE_IN_USE,
+ ST_FLITE_CONFIG,
+ ST_SENSOR_STREAM,
+};
+
+#define FLITE_SD_PAD_SINK 0
+#define FLITE_SD_PAD_SOURCE 1
+#define FLITE_SD_PADS_NUM 2
+
+struct flite_variant {
+ unsigned short max_width;
+ unsigned short max_height;
+ unsigned short out_width_align;
+ unsigned short win_hor_offs_align;
+ unsigned short out_hor_offs_align;
+};
+
+struct flite_drvdata {
+ struct flite_variant *variant[FIMC_LITE_MAX_DEVS];
+};
+
+#define fimc_lite_get_drvdata(_pdev) \
+ ((struct flite_drvdata *) platform_get_device_id(_pdev)->driver_data)
+
+struct fimc_lite_events {
+ unsigned int data_overflow;
+};
+
+#define FLITE_MAX_PLANES 1
+
+/**
+ * struct flite_frame - source/target frame properties
+ * @f_width: full pixel width
+ * @f_height: full pixel height
+ * @rect: crop/composition rectangle
+ */
+struct flite_frame {
+ u16 f_width;
+ u16 f_height;
+ struct v4l2_rect rect;
+};
+
+/**
+ * struct flite_buffer - video buffer structure
+ * @vb: vb2 buffer
+ * @list: list head for the buffers queue
+ * @paddr: precalculated physical address
+ */
+struct flite_buffer {
+ struct vb2_buffer vb;
+ struct list_head list;
+ dma_addr_t paddr;
+};
+
+/**
+ * struct fimc_lite - fimc lite structure
+ * @pdev: pointer to FIMC-LITE platform device
+ * @variant: variant information for this IP
+ * @v4l2_dev: pointer to top the level v4l2_device
+ * @vfd: video device node
+ * @fh: v4l2 file handle
+ * @alloc_ctx: videobuf2 memory allocator context
+ * @subdev: FIMC-LITE subdev
+ * @vd_pad: media (sink) pad for the capture video node
+ * @subdev_pads: the subdev media pads
+ * @ctrl_handler: v4l2 control handler
+ * @test_pattern: test pattern controls
+ * @index: FIMC-LITE platform device index
+ * @pipeline: video capture pipeline data structure
+ * @slock: spinlock protecting this data structure and the hw registers
+ * @lock: mutex serializing video device and the subdev operations
+ * @clock: FIMC-LITE gate clock
+ * @regs: memory mapped io registers
+ * @irq_queue: interrupt handler waitqueue
+ * @fmt: pointer to color format description structure
+ * @payload: image size in bytes (w x h x bpp)
+ * @inp_frame: camera input frame structure
+ * @out_frame: DMA output frame structure
+ * @out_path: output data path (DMA or FIFO)
+ * @source_subdev_grp_id: source subdev group id
+ * @state: driver state flags
+ * @pending_buf_q: pending buffers queue head
+ * @active_buf_q: the queue head of buffers scheduled in hardware
+ * @vb_queue: vb2 buffers queue
+ * @active_buf_count: number of video buffers scheduled in hardware
+ * @frame_count: the captured frames counter
+ * @reqbufs_count: the number of buffers requested with REQBUFS ioctl
+ * @ref_count: driver's private reference counter
+ */
+struct fimc_lite {
+ struct platform_device *pdev;
+ struct flite_variant *variant;
+ struct v4l2_device *v4l2_dev;
+ struct video_device *vfd;
+ struct v4l2_fh fh;
+ struct vb2_alloc_ctx *alloc_ctx;
+ struct v4l2_subdev subdev;
+ struct media_pad vd_pad;
+ struct media_pad subdev_pads[FLITE_SD_PADS_NUM];
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *test_pattern;
+ u32 index;
+ struct fimc_pipeline pipeline;
+
+ struct mutex lock;
+ spinlock_t slock;
+
+ struct clk *clock;
+ void __iomem *regs;
+ wait_queue_head_t irq_queue;
+
+ const struct fimc_fmt *fmt;
+ unsigned long payload[FLITE_MAX_PLANES];
+ struct flite_frame inp_frame;
+ struct flite_frame out_frame;
+ enum fimc_datapath out_path;
+ unsigned int source_subdev_grp_id;
+
+ unsigned long state;
+ struct list_head pending_buf_q;
+ struct list_head active_buf_q;
+ struct vb2_queue vb_queue;
+ unsigned int frame_count;
+ unsigned int reqbufs_count;
+ int ref_count;
+
+ struct fimc_lite_events events;
+};
+
+static inline bool fimc_lite_active(struct fimc_lite *fimc)
+{
+ unsigned long flags;
+ bool ret;
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ ret = fimc->state & (1 << ST_FLITE_RUN) ||
+ fimc->state & (1 << ST_FLITE_PENDING);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ return ret;
+}
+
+static inline void fimc_lite_active_queue_add(struct fimc_lite *dev,
+ struct flite_buffer *buf)
+{
+ list_add_tail(&buf->list, &dev->active_buf_q);
+}
+
+static inline struct flite_buffer *fimc_lite_active_queue_pop(
+ struct fimc_lite *dev)
+{
+ struct flite_buffer *buf = list_entry(dev->active_buf_q.next,
+ struct flite_buffer, list);
+ list_del(&buf->list);
+ return buf;
+}
+
+static inline void fimc_lite_pending_queue_add(struct fimc_lite *dev,
+ struct flite_buffer *buf)
+{
+ list_add_tail(&buf->list, &dev->pending_buf_q);
+}
+
+static inline struct flite_buffer *fimc_lite_pending_queue_pop(
+ struct fimc_lite *dev)
+{
+ struct flite_buffer *buf = list_entry(dev->pending_buf_q.next,
+ struct flite_buffer, list);
+ list_del(&buf->list);
+ return buf;
+}
+
+#endif /* FIMC_LITE_H_ */
projects / platform / kernel / linux-exynos.git / commitdiff