--- /dev/null
+/*
+ * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
+ *
+ * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
+ *
+ * Authors: Younghwan Joo <yhwan.joo@samsung.com>
+ * 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/delay.h>
+
+#include "fimc-is.h"
+#include "fimc-is-command.h"
+#include "fimc-is-regs.h"
+#include "fimc-is-sensor.h"
+
+void fimc_is_fw_clear_irq1(struct fimc_is *is, unsigned int nr)
+{
+ mcuctl_write(1UL << nr, is, MCUCTL_REG_INTCR1);
+}
+
+void fimc_is_fw_clear_irq2(struct fimc_is *is)
+{
+ u32 cfg = mcuctl_read(is, MCUCTL_REG_INTSR2);
+ mcuctl_write(cfg, is, MCUCTL_REG_INTCR2);
+}
+
+void fimc_is_hw_set_intgr0_gd0(struct fimc_is *is)
+{
+ mcuctl_write(INTGR0_INTGD(0), is, MCUCTL_REG_INTGR0);
+}
+
+int fimc_is_hw_wait_intmsr0_intmsd0(struct fimc_is *is)
+{
+ unsigned int timeout = 2000;
+ u32 cfg, status;
+
+ do {
+ cfg = mcuctl_read(is, MCUCTL_REG_INTMSR0);
+ status = INTMSR0_GET_INTMSD(0, cfg);
+
+ if (--timeout == 0) {
+ dev_warn(&is->pdev->dev, "%s timeout\n",
+ __func__);
+ return -ETIMEDOUT;
+ }
+ udelay(1);
+ } while (status != 0);
+
+ return 0;
+}
+
+int fimc_is_hw_set_param(struct fimc_is *is)
+{
+ struct chain_config *config = &is->config[is->config_index];
+ unsigned int param_count = __get_pending_param_count(is);
+
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+
+ mcuctl_write(HIC_SET_PARAMETER, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(is->config_index, is, MCUCTL_REG_ISSR(2));
+
+ mcuctl_write(param_count, is, MCUCTL_REG_ISSR(3));
+ mcuctl_write(config->p_region_index[0], is, MCUCTL_REG_ISSR(4));
+ mcuctl_write(config->p_region_index[1], is, MCUCTL_REG_ISSR(5));
+
+ fimc_is_hw_set_intgr0_gd0(is);
+ return 0;
+}
+
+static int __maybe_unused fimc_is_hw_set_tune(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+
+ mcuctl_write(HIC_SET_TUNE, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(is->h2i_cmd.entry_id, is, MCUCTL_REG_ISSR(2));
+
+ fimc_is_hw_set_intgr0_gd0(is);
+ return 0;
+}
+
+#define FIMC_IS_MAX_PARAMS 4
+
+int fimc_is_hw_get_params(struct fimc_is *is, unsigned int num_args)
+{
+ int i;
+
+ if (num_args > FIMC_IS_MAX_PARAMS)
+ return -EINVAL;
+
+ is->i2h_cmd.num_args = num_args;
+
+ for (i = 0; i < FIMC_IS_MAX_PARAMS; i++) {
+ if (i < num_args)
+ is->i2h_cmd.args[i] = mcuctl_read(is,
+ MCUCTL_REG_ISSR(12 + i));
+ else
+ is->i2h_cmd.args[i] = 0;
+ }
+ return 0;
+}
+
+void fimc_is_hw_set_isp_buf_mask(struct fimc_is *is, unsigned int mask)
+{
+ if (hweight32(mask) == 1) {
+ dev_err(&is->pdev->dev, "%s(): not enough buffers (mask %#x)\n",
+ __func__, mask);
+ return;
+ }
+
+ if (mcuctl_read(is, MCUCTL_REG_ISSR(23)) != 0)
+ dev_dbg(&is->pdev->dev, "non-zero DMA buffer mask\n");
+
+ mcuctl_write(mask, is, MCUCTL_REG_ISSR(23));
+}
+
+void fimc_is_hw_set_sensor_num(struct fimc_is *is)
+{
+ pr_debug("setting sensor index to: %d\n", is->sensor_index);
+
+ mcuctl_write(IH_REPLY_DONE, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(IHC_GET_SENSOR_NUM, is, MCUCTL_REG_ISSR(2));
+ mcuctl_write(FIMC_IS_SENSORS_NUM, is, MCUCTL_REG_ISSR(3));
+}
+
+void fimc_is_hw_close_sensor(struct fimc_is *is, unsigned int index)
+{
+ if (is->sensor_index != index)
+ return;
+
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_CLOSE_SENSOR, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(2));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+void fimc_is_hw_get_setfile_addr(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_GET_SET_FILE_ADDR, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+void fimc_is_hw_load_setfile(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_LOAD_SET_FILE, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+int fimc_is_hw_change_mode(struct fimc_is *is)
+{
+ const u8 cmd[] = {
+ HIC_PREVIEW_STILL, HIC_PREVIEW_VIDEO,
+ HIC_CAPTURE_STILL, HIC_CAPTURE_VIDEO,
+ };
+
+ if (WARN_ON(is->config_index >= ARRAY_SIZE(cmd)))
+ return -EINVAL;
+
+ mcuctl_write(cmd[is->config_index], is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(is->setfile.sub_index, is, MCUCTL_REG_ISSR(2));
+ fimc_is_hw_set_intgr0_gd0(is);
+ return 0;
+}
+
+void fimc_is_hw_stream_on(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_STREAM_ON, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ mcuctl_write(0, is, MCUCTL_REG_ISSR(2));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+void fimc_is_hw_stream_off(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_STREAM_OFF, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+void fimc_is_hw_subip_power_off(struct fimc_is *is)
+{
+ fimc_is_hw_wait_intmsr0_intmsd0(is);
+ mcuctl_write(HIC_POWER_DOWN, is, MCUCTL_REG_ISSR(0));
+ mcuctl_write(is->sensor_index, is, MCUCTL_REG_ISSR(1));
+ fimc_is_hw_set_intgr0_gd0(is);
+}
+
+int fimc_is_itf_s_param(struct fimc_is *is, bool update)
+{
+ int ret;
+
+ if (update)
+ __is_hw_update_params(is);
+
+ fimc_is_mem_barrier();
+
+ clear_bit(IS_ST_BLOCK_CMD_CLEARED, &is->state);
+ fimc_is_hw_set_param(is);
+ ret = fimc_is_wait_event(is, IS_ST_BLOCK_CMD_CLEARED, 1,
+ FIMC_IS_CONFIG_TIMEOUT);
+ if (ret < 0)
+ dev_err(&is->pdev->dev, "%s() timeout\n", __func__);
+
+ return ret;
+}
+
+int fimc_is_itf_mode_change(struct fimc_is *is)
+{
+ int ret;
+
+ clear_bit(IS_ST_CHANGE_MODE, &is->state);
+ fimc_is_hw_change_mode(is);
+ ret = fimc_is_wait_event(is, IS_ST_CHANGE_MODE, 1,
+ FIMC_IS_CONFIG_TIMEOUT);
+ if (ret < 0)
+ dev_err(&is->pdev->dev, "%s(): mode change (%d) timeout\n",
+ __func__, is->config_index);
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff