This driver is for the FIMC-IS IP available in Samsung Exynos5 SoC onwards. This patch adds the core files for the new driver. Signed-off-by: Arun Kumar K <arun.kk@xxxxxxxxxxx> Signed-off-by: Kilyeon Im <kilyeon.im@xxxxxxxxxxx> --- drivers/media/platform/exynos5-is/fimc-is-core.c | 413 ++++++++++++++++++++++ drivers/media/platform/exynos5-is/fimc-is-core.h | 134 +++++++ 2 files changed, 547 insertions(+) create mode 100644 drivers/media/platform/exynos5-is/fimc-is-core.c create mode 100644 drivers/media/platform/exynos5-is/fimc-is-core.h diff --git a/drivers/media/platform/exynos5-is/fimc-is-core.c b/drivers/media/platform/exynos5-is/fimc-is-core.c new file mode 100644 index 0000000..067dea6 --- /dev/null +++ b/drivers/media/platform/exynos5-is/fimc-is-core.c @@ -0,0 +1,413 @@ +/* + * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver +* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Arun Kumar K <arun.kk@xxxxxxxxxxx> + * + * 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/bug.h> +#include <linux/ctype.h> +#include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/firmware.h> +#include <linux/fs.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/of_irq.h> +#include <linux/pinctrl/consumer.h> + +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-of.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "fimc-is.h" +#include "fimc-is-i2c.h" + +#define CLK_MCU_ISP_DIV0_FREQ (200 * 1000000) +#define CLK_MCU_ISP_DIV1_FREQ (100 * 1000000) +#define CLK_ISP_DIV0_FREQ (134 * 1000000) +#define CLK_ISP_DIV1_FREQ (68 * 1000000) +#define CLK_ISP_DIVMPWM_FREQ (34 * 1000000) + +static char *fimc_is_clock_name[] = { + [IS_CLK_ISP] = "isp", + [IS_CLK_MCU_ISP] = "mcu_isp", + [IS_CLK_ISP_DIV0] = "isp_div0", + [IS_CLK_ISP_DIV1] = "isp_div1", + [IS_CLK_ISP_DIVMPWM] = "isp_divmpwm", + [IS_CLK_MCU_ISP_DIV0] = "mcu_isp_div0", + [IS_CLK_MCU_ISP_DIV1] = "mcu_isp_div1", +}; + +static void fimc_is_put_clocks(struct fimc_is *is) +{ + int i; + + for (i = 0; i < IS_CLK_MAX_NUM; i++) { + if (IS_ERR(is->clock[i])) + continue; + clk_unprepare(is->clock[i]); + clk_put(is->clock[i]); + is->clock[i] = NULL; + } +} + +static int fimc_is_get_clocks(struct fimc_is *is) +{ + struct device *dev = &is->pdev->dev; + int i, ret; + + for (i = 0; i < IS_CLK_MAX_NUM; i++) { + is->clock[i] = clk_get(dev, fimc_is_clock_name[i]); + if (IS_ERR(is->clock[i])) + goto err; + ret = clk_prepare(is->clock[i]); + if (ret < 0) { + clk_put(is->clock[i]); + is->clock[i] = ERR_PTR(-EINVAL); + goto err; + } + } + return 0; +err: + fimc_is_put_clocks(is); + pr_err("Failed to get clock: %s\n", fimc_is_clock_name[i]); + return -ENXIO; +} + +static int fimc_is_configure_clocks(struct fimc_is *is) +{ + int i, ret; + + for (i = 0; i < IS_CLK_MAX_NUM; i++) + is->clock[i] = ERR_PTR(-EINVAL); + + ret = fimc_is_get_clocks(is); + if (ret) + return ret; + + /* Set rates */ + ret = clk_set_rate(is->clock[IS_CLK_MCU_ISP_DIV0], + CLK_MCU_ISP_DIV0_FREQ); + if (ret) + return ret; + ret = clk_set_rate(is->clock[IS_CLK_MCU_ISP_DIV1], + CLK_MCU_ISP_DIV1_FREQ); + if (ret) + return ret; + ret = clk_set_rate(is->clock[IS_CLK_ISP_DIV0], CLK_ISP_DIV0_FREQ); + if (ret) + return ret; + ret = clk_set_rate(is->clock[IS_CLK_ISP_DIV1], CLK_ISP_DIV1_FREQ); + if (ret) + return ret; + ret = clk_set_rate(is->clock[IS_CLK_ISP_DIVMPWM], + CLK_ISP_DIVMPWM_FREQ); + return ret; +} + +static void fimc_is_pipelines_destroy(struct fimc_is *is) +{ + int i; + + for (i = 0; i < is->drvdata->num_instance; i++) + fimc_is_pipeline_destroy(&is->pipeline[i]); +} + +static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index, + struct device_node *node) +{ + struct fimc_is_sensor *sensor = &is->sensor[index]; + u32 tmp = 0; + int ret; + + sensor->drvdata = exynos5_is_sensor_get_drvdata(node); + if (!sensor->drvdata) { + dev_err(&is->pdev->dev, "no driver data found for: %s\n", + node->full_name); + return -EINVAL; + } + + node = v4l2_of_get_next_endpoint(node, NULL); + if (!node) + return -ENXIO; + + node = v4l2_of_get_remote_port(node); + if (!node) + return -ENXIO; + + /* Use MIPI-CSIS channel id to determine the ISP I2C bus index. */ + ret = of_property_read_u32(node, "reg", &tmp); + if (ret < 0) { + dev_err(&is->pdev->dev, "reg property not found at: %s\n", + node->full_name); + return ret; + } + + sensor->i2c_bus = tmp - FIMC_INPUT_MIPI_CSI2_0; + return 0; +} + +static int fimc_is_parse_sensor(struct fimc_is *is) +{ + struct device_node *i2c_bus, *child; + int ret, index = 0; + + for_each_compatible_node(i2c_bus, NULL, FIMC_IS_I2C_COMPATIBLE) { + for_each_available_child_of_node(i2c_bus, child) { + ret = fimc_is_parse_sensor_config(is, index, child); + + if (ret < 0 || index >= FIMC_IS_NUM_SENSORS) { + of_node_put(child); + return ret; + } + index++; + } + } + return 0; +} + +static void *fimc_is_get_drvdata(struct platform_device *pdev); + +static int fimc_is_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct resource *res; + struct fimc_is *is; + void __iomem *regs; + struct device_node *node; + int irq, ret; + int i; + + dev_dbg(dev, "FIMC-IS Probe Enter\n"); + + if (!pdev->dev.of_node) + return -ENODEV; + + is = devm_kzalloc(&pdev->dev, sizeof(*is), GFP_KERNEL); + if (!is) + return -ENOMEM; + + is->pdev = pdev; + + is->drvdata = fimc_is_get_drvdata(pdev); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + /* Get the PMU base */ + node = of_get_child_by_name(dev->of_node, "pmu"); + if (!node) + return -ENODEV; + is->pmu_regs = of_iomap(node, 0); + if (!is->pmu_regs) + return -ENOMEM; + + irq = irq_of_parse_and_map(dev->of_node, 0); + if (irq < 0) { + dev_err(dev, "Failed to get IRQ\n"); + return irq; + } + + ret = fimc_is_configure_clocks(is); + if (ret < 0) { + dev_err(dev, "clocks configuration failed\n"); + goto err_clk; + } + + platform_set_drvdata(pdev, is); + pm_runtime_enable(dev); + + ret = pm_runtime_get_sync(dev); + if (ret < 0) + goto err_pm; + + is->alloc_ctx = vb2_dma_contig_init_ctx(dev); + if (IS_ERR(is->alloc_ctx)) { + ret = PTR_ERR(is->alloc_ctx); + goto err_vb; + } + + /* Get IS-sensor contexts */ + ret = fimc_is_parse_sensor(is); + if (ret < 0) + goto err_vb; + + /* Initialize FIMC Pipeline */ + for (i = 0; i < is->drvdata->num_instance; i++) { + ret = fimc_is_pipeline_init(&is->pipeline[i], i, is); + if (ret < 0) + goto err_sd; + } + + /* Initialize FIMC Interface */ + ret = fimc_is_interface_init(&is->interface, regs, irq); + if (ret < 0) + goto err_sd; + + pm_runtime_put(dev); + + dev_dbg(dev, "FIMC-IS registered successfully\n"); + + return 0; + +err_sd: + fimc_is_pipelines_destroy(is); +err_vb: + vb2_dma_contig_cleanup_ctx(is->alloc_ctx); +err_pm: + pm_runtime_put(dev); +err_clk: + fimc_is_put_clocks(is); + + return ret; +} + +int fimc_is_clk_enable(struct fimc_is *is) +{ + int ret; + + ret = clk_enable(is->clock[IS_CLK_ISP]); + if (ret) + return ret; + ret = clk_enable(is->clock[IS_CLK_MCU_ISP]); + return ret; +} + +void fimc_is_clk_disable(struct fimc_is *is) +{ + clk_disable(is->clock[IS_CLK_ISP]); + clk_disable(is->clock[IS_CLK_MCU_ISP]); +} + +static int fimc_is_pm_resume(struct device *dev) +{ + struct fimc_is *is = dev_get_drvdata(dev); + int ret; + + ret = fimc_is_clk_enable(is); + if (ret < 0) { + dev_err(dev, "Could not enable clocks\n"); + return ret; + } + return 0; +} + +static int fimc_is_pm_suspend(struct device *dev) +{ + struct fimc_is *is = dev_get_drvdata(dev); + + fimc_is_clk_disable(is); + return 0; +} + +static int fimc_is_runtime_resume(struct device *dev) +{ + return fimc_is_pm_resume(dev); +} + +static int fimc_is_runtime_suspend(struct device *dev) +{ + return fimc_is_pm_suspend(dev); +} + +#ifdef CONFIG_PM_SLEEP +static int fimc_is_resume(struct device *dev) +{ + /* TODO */ + return 0; +} + +static int fimc_is_suspend(struct device *dev) +{ + /* TODO */ + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static int fimc_is_remove(struct platform_device *pdev) +{ + struct fimc_is *is = platform_get_drvdata(pdev); + struct device *dev = &pdev->dev; + + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + fimc_is_pipelines_destroy(is); + vb2_dma_contig_cleanup_ctx(is->alloc_ctx); + fimc_is_put_clocks(is); + return 0; +} + +static const struct dev_pm_ops fimc_is_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(fimc_is_suspend, fimc_is_resume) + SET_RUNTIME_PM_OPS(fimc_is_runtime_suspend, fimc_is_runtime_resume, + NULL) +}; + +static struct fimc_is_drvdata exynos5250_drvdata = { + .num_instance = 1, + .fw_name = "exynos5_fimc_is_fw.bin", +}; + +static const struct of_device_id exynos5_fimc_is_match[] = { + { + .compatible = "samsung,exynos5250-fimc-is", + .data = &exynos5250_drvdata, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, exynos5_fimc_is_match); + +static void *fimc_is_get_drvdata(struct platform_device *pdev) +{ + struct fimc_is_drvdata *driver_data = NULL; + + if (pdev->dev.of_node) { + const struct of_device_id *match; + match = of_match_node(exynos5_fimc_is_match, + pdev->dev.of_node); + if (match) + driver_data = (struct fimc_is_drvdata *)match->data; + } + return driver_data; +} + +static struct platform_driver fimc_is_driver = { + .probe = fimc_is_probe, + .remove = fimc_is_remove, + .driver = { + .name = FIMC_IS_DRV_NAME, + .owner = THIS_MODULE, + .pm = &fimc_is_pm_ops, + .of_match_table = exynos5_fimc_is_match, + } +}; +module_platform_driver(fimc_is_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Arun Kumar K <arun.kk@xxxxxxxxxxx>"); +MODULE_DESCRIPTION("Samsung Exynos5 (FIMC-IS) Imaging Subsystem driver"); diff --git a/drivers/media/platform/exynos5-is/fimc-is-core.h b/drivers/media/platform/exynos5-is/fimc-is-core.h new file mode 100644 index 0000000..a0568f1 --- /dev/null +++ b/drivers/media/platform/exynos5-is/fimc-is-core.h @@ -0,0 +1,134 @@ +/* + * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Arun Kumar K <arun.kk@xxxxxxxxxxx> + * + * 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_IS_CORE_H_ +#define FIMC_IS_CORE_H_ + +#include <linux/bug.h> +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/firmware.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include <asm/barrier.h> +#include <linux/sizes.h> +#include <linux/io.h> +#include <linux/irqreturn.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/spinlock.h> + +#include <media/media-entity.h> +#include <media/videobuf2-core.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-mediabus.h> +#include <media/s5p_fimc.h> + +#define FIMC_IS_DRV_NAME "exynos5-fimc-is" + +#define FIMC_IS_COMMAND_TIMEOUT (3 * HZ) +#define FIMC_IS_STARTUP_TIMEOUT (3 * HZ) +#define FIMC_IS_SHUTDOWN_TIMEOUT (10 * HZ) + +#define FW_SHARED_OFFSET (0x8c0000) +#define DEBUG_CNT (500 * 1024) +#define DEBUG_OFFSET (0x840000) +#define DEBUGCTL_OFFSET (0x8bd000) +#define DEBUG_FCOUNT (0x8c64c0) + +#define FIMC_IS_MAX_INSTANCES 1 + +#define FIMC_IS_NUM_SENSORS 2 +#define FIMC_IS_NUM_PIPELINES 1 + +#define FIMC_IS_MAX_PLANES 3 +#define FIMC_IS_NUM_SCALERS 2 + +enum fimc_is_clks { + IS_CLK_ISP, + IS_CLK_MCU_ISP, + IS_CLK_ISP_DIV0, + IS_CLK_ISP_DIV1, + IS_CLK_ISP_DIVMPWM, + IS_CLK_MCU_ISP_DIV0, + IS_CLK_MCU_ISP_DIV1, + IS_CLK_MAX_NUM +}; + +/* Video capture states */ +enum fimc_is_video_state { + STATE_INIT, + STATE_BUFS_ALLOCATED, + STATE_RUNNING, +}; + +enum fimc_is_scaler_id { + SCALER_SCC, + SCALER_SCP +}; + +enum fimc_is_sensor_pos { + SENSOR_CAM0, + SENSOR_CAM1 +}; + +struct fimc_is_buf { + struct vb2_buffer vb; + struct list_head list; + unsigned int paddr[FIMC_IS_MAX_PLANES]; +}; + +struct fimc_is_memory { + /* physical base address */ + dma_addr_t paddr; + /* virtual base address */ + void *vaddr; + /* total length */ + unsigned int size; +}; + +struct fimc_is_meminfo { + struct fimc_is_memory fw; + struct fimc_is_memory shot; + struct fimc_is_memory region; + struct fimc_is_memory shared; +}; + +struct fimc_is_drvdata { + unsigned int num_instance; + char *fw_name; +}; + +/** + * struct fimc_is_fmt - the driver's internal color format data + * @name: format description + * @fourcc: the fourcc code for this format + * @depth: number of bytes per pixel + * @num_planes: number of planes for this color format + */ +struct fimc_is_fmt { + char *name; + unsigned int fourcc; + unsigned int depth[FIMC_IS_MAX_PLANES]; + unsigned int num_planes; +}; + +#endif -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html