--- /dev/null
+/* Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_platform.h>
+#include <linux/regulator/consumer.h>
+#include "msm_cci.h"
+#include "msm_cam_cci_hwreg.h"
+
+#define V4L2_IDENT_CCI 50005
+#define CCI_I2C_QUEUE_0_SIZE 64
+#define CCI_I2C_QUEUE_1_SIZE 16
+#define CYCLES_PER_MICRO_SEC_DEFAULT 4915
+#define CCI_MAX_DELAY 1000000
+
+#define CCI_TIMEOUT msecs_to_jiffies(100)
+
+/* TODO move this somewhere else */
+#define MSM_CCI_DRV_NAME "msm_cci"
+
+#undef CDBG
+#define CDBG(fmt, args...) pr_err(fmt, ##args)
+
+/* Max bytes that can be read per CCI read transaction */
+#define CCI_READ_MAX 12
+#define CCI_I2C_READ_MAX_RETRIES 3
+#define CCI_I2C_MAX_READ 8192
+#define CCI_I2C_MAX_WRITE 8192
+
+static struct v4l2_subdev *g_cci_subdev;
+
+struct msm_video_device {
+ struct video_device *vdev;
+ atomic_t opened;
+};
+
+#define MSM_CONFIGURATION_NAME "msm_config"
+
+static int msm_probe(struct platform_device *pdev,
+ struct v4l2_device *msm_v4l2_dev)
+{
+ struct msm_video_device *pvdev;
+ int rc = 0;
+
+ pvdev = kzalloc(sizeof(struct msm_video_device),
+ GFP_KERNEL);
+ if (WARN_ON(!pvdev)) {
+ rc = -ENOMEM;
+ goto pvdev_fail;
+ }
+
+ pvdev->vdev = video_device_alloc();
+ if (WARN_ON(!pvdev->vdev)) {
+ rc = -ENOMEM;
+ goto video_fail;
+ }
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ msm_v4l2_dev->mdev = kzalloc(sizeof(struct media_device),
+ GFP_KERNEL);
+ if (!msm_v4l2_dev->mdev) {
+ rc = -ENOMEM;
+ goto mdev_fail;
+ }
+ strlcpy(msm_v4l2_dev->mdev->model, MSM_CONFIGURATION_NAME,
+ sizeof(msm_v4l2_dev->mdev->model));
+ msm_v4l2_dev->mdev->dev = &(pdev->dev);
+
+ rc = media_device_register(msm_v4l2_dev->mdev);
+ if (WARN_ON(rc < 0))
+ goto media_fail;
+
+ if (WARN_ON((rc == media_entity_init(&pvdev->vdev->entity,
+ 0, NULL, 0)) < 0))
+ goto entity_fail;
+
+ pvdev->vdev->entity.type = MEDIA_ENT_T_DEVNODE_V4L;
+ pvdev->vdev->entity.group_id = 2;
+#endif
+
+// msm_v4l2_dev->notify = msm_sd_notify;
+
+ pvdev->vdev->v4l2_dev = msm_v4l2_dev;
+
+ rc = v4l2_device_register(&(pdev->dev), pvdev->vdev->v4l2_dev);
+ if (WARN_ON(rc < 0))
+ goto register_fail;
+
+ goto probe_end;
+
+#if 0
+ strlcpy(pvdev->vdev->name, "msm-config", sizeof(pvdev->vdev->name));
+ pvdev->vdev->release = video_device_release;
+ pvdev->vdev->fops = &msm_fops;
+ pvdev->vdev->ioctl_ops = &g_msm_ioctl_ops;
+ pvdev->vdev->minor = -1;
+ pvdev->vdev->vfl_type = VFL_TYPE_GRABBER;
+ rc = video_register_device(pvdev->vdev,
+ VFL_TYPE_GRABBER, -1);
+ if (WARN_ON(rc < 0))
+ goto v4l2_fail;
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ /* FIXME: How to get rid of this messy? */
+ pvdev->vdev->entity.name = video_device_node_name(pvdev->vdev);
+#endif
+
+ atomic_set(&pvdev->opened, 0);
+ video_set_drvdata(pvdev->vdev, pvdev);
+
+ msm_session_q = kzalloc(sizeof(*msm_session_q), GFP_KERNEL);
+ if (WARN_ON(!msm_session_q))
+ goto v4l2_fail;
+
+ msm_init_queue(msm_session_q);
+ spin_lock_init(&msm_eventq_lock);
+ spin_lock_init(&msm_pid_lock);
+ INIT_LIST_HEAD(&ordered_sd_list);
+ goto probe_end;
+
+v4l2_fail:
+ v4l2_device_unregister(pvdev->vdev->v4l2_dev);
+#endif
+
+register_fail:
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ media_entity_cleanup(&pvdev->vdev->entity);
+entity_fail:
+ media_device_unregister(msm_v4l2_dev->mdev);
+media_fail:
+ kzfree(msm_v4l2_dev->mdev);
+mdev_fail:
+#endif
+ video_device_release(pvdev->vdev);
+video_fail:
+ kzfree(pvdev);
+pvdev_fail:
+probe_end:
+ return rc;
+}
+
+static void msm_sd_unregister_subdev(struct video_device *vdev)
+{
+ struct v4l2_subdev *sd = video_get_drvdata(vdev);
+ sd->devnode = NULL;
+ kzfree(vdev);
+}
+
+static inline int __msm_sd_register_subdev(struct v4l2_subdev *sd,
+ struct v4l2_device *msm_v4l2_dev)
+{
+ int rc = 0;
+ struct video_device *vdev;
+
+ if (!msm_v4l2_dev || !sd || !sd->name[0])
+ return -EINVAL;
+
+ rc = v4l2_device_register_subdev(msm_v4l2_dev, sd);
+ if (rc < 0)
+ return rc;
+
+ /* Register a device node for every subdev marked with the
+ * V4L2_SUBDEV_FL_HAS_DEVNODE flag.
+ */
+ if (!(sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE))
+ return rc;
+
+ vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+ if (!vdev) {
+ rc = -ENOMEM;
+ goto clean_up;
+ }
+
+ video_set_drvdata(vdev, sd);
+ strlcpy(vdev->name, sd->name, sizeof(vdev->name));
+ vdev->v4l2_dev = msm_v4l2_dev;
+ vdev->fops = &v4l2_subdev_fops;
+ vdev->release = msm_sd_unregister_subdev;
+ rc = __video_register_device(vdev, VFL_TYPE_SUBDEV, -1, 1,
+ sd->owner);
+ if (rc < 0) {
+ kzfree(vdev);
+ goto clean_up;
+ }
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ sd->entity.info.dev.major = VIDEO_MAJOR;
+ sd->entity.info.dev.minor = vdev->minor;
+ sd->entity.name = video_device_node_name(vdev);
+#endif
+ sd->devnode = vdev;
+ return 0;
+
+clean_up:
+ if (sd->devnode)
+ video_unregister_device(sd->devnode);
+ return rc;
+}
+
+int msm_sd_register(struct msm_sd_subdev *msm_subdev,
+ struct v4l2_device *msm_v4l2_dev)
+{
+ if (WARN_ON(!msm_subdev))
+ return -EINVAL;
+
+ if (WARN_ON(!msm_v4l2_dev) || WARN_ON(!msm_v4l2_dev->dev))
+ return -EIO;
+
+ return __msm_sd_register_subdev(&msm_subdev->sd, msm_v4l2_dev);
+}
+
+struct msm_cam_clk_info {
+ const char *clk_name;
+ long clk_rate;
+ uint32_t delay;
+};
+
+static struct msm_cam_clk_info cci_clk_info[CCI_NUM_CLK_MAX];
+
+#define INIT_RATE -2
+
+static int msm_cam_clk_enable(struct device *dev, struct msm_cam_clk_info *clk_info,
+ struct clk **clk_ptr, int num_clk, int enable)
+{
+ int i;
+ int rc = 0;
+ long clk_rate;
+ if (enable) {
+ for (i = 0; i < num_clk; i++) {
+ CDBG("%s enable %s\n", __func__, clk_info[i].clk_name);
+ clk_ptr[i] = clk_get(dev, clk_info[i].clk_name);
+ if (IS_ERR(clk_ptr[i])) {
+ pr_err("%s get failed\n", clk_info[i].clk_name);
+ rc = PTR_ERR(clk_ptr[i]);
+ goto cam_clk_get_err;
+ }
+ if (clk_info[i].clk_rate > 0) {
+ clk_rate = clk_round_rate(clk_ptr[i],
+ clk_info[i].clk_rate);
+ if (clk_rate < 0) {
+ pr_err("%s round failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_set_err;
+ }
+ rc = clk_set_rate(clk_ptr[i],
+ clk_rate);
+ if (rc < 0) {
+ pr_err("%s set failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_set_err;
+ }
+
+ } else if (clk_info[i].clk_rate == INIT_RATE) {
+ clk_rate = clk_get_rate(clk_ptr[i]);
+ if (clk_rate == 0) {
+ clk_rate =
+ clk_round_rate(clk_ptr[i], 0);
+ if (clk_rate < 0) {
+ pr_err("%s round rate failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_set_err;
+ }
+ rc = clk_set_rate(clk_ptr[i],
+ clk_rate);
+ if (rc < 0) {
+ pr_err("%s set rate failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_set_err;
+ }
+ }
+ }
+ rc = clk_prepare(clk_ptr[i]);
+ if (rc < 0) {
+ pr_err("%s prepare failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_prepare_err;
+ }
+
+ rc = clk_enable(clk_ptr[i]);
+ if (rc < 0) {
+ pr_err("%s enable failed\n",
+ clk_info[i].clk_name);
+ goto cam_clk_enable_err;
+ }
+ if (clk_info[i].delay > 20) {
+ msleep(clk_info[i].delay);
+ } else if (clk_info[i].delay) {
+ usleep_range(clk_info[i].delay * 1000,
+ (clk_info[i].delay * 1000) + 1000);
+ }
+ }
+ } else {
+ for (i = num_clk - 1; i >= 0; i--) {
+ if (clk_ptr[i] != NULL) {
+ CDBG("%s disable %s\n", __func__,
+ clk_info[i].clk_name);
+ clk_disable(clk_ptr[i]);
+ clk_unprepare(clk_ptr[i]);
+ clk_put(clk_ptr[i]);
+ }
+ }
+ }
+ return rc;
+
+
+cam_clk_enable_err:
+ clk_unprepare(clk_ptr[i]);
+cam_clk_prepare_err:
+cam_clk_set_err:
+ clk_put(clk_ptr[i]);
+cam_clk_get_err:
+ for (i--; i >= 0; i--) {
+ if (clk_ptr[i] != NULL) {
+ clk_disable(clk_ptr[i]);
+ clk_unprepare(clk_ptr[i]);
+ clk_put(clk_ptr[i]);
+ }
+ }
+ return rc;
+}
+
+int msm_camera_request_gpio_table(struct gpio *gpio_tbl, uint8_t size,
+ int gpio_en)
+{
+ return 0;
+}
+
+static void msm_camera_io_w_mb(u32 data, void __iomem *addr)
+{
+ CDBG("%s: 0x%p %08x\n", __func__, (addr), (data));
+ wmb();
+ writel_relaxed((data), (addr));
+ wmb();
+}
+
+static u32 msm_camera_io_r_mb(void __iomem *addr)
+{
+ uint32_t data;
+ rmb();
+ data = readl_relaxed(addr);
+ rmb();
+ CDBG("%s: 0x%p %08x\n", __func__, (addr), (data));
+ return data;
+}
+
+static void msm_cci_set_clk_param(struct cci_device *cci_dev,
+ struct msm_camera_cci_ctrl *c_ctrl)
+{
+ struct msm_cci_clk_params_t *clk_params = NULL;
+ enum cci_i2c_master_t master = c_ctrl->cci_info->cci_i2c_master;
+ enum i2c_freq_mode_t i2c_freq_mode = c_ctrl->cci_info->i2c_freq_mode;
+
+ if (cci_dev->master_clk_init[master])
+ return;
+ clk_params = &cci_dev->cci_clk_params[i2c_freq_mode];
+
+ if (MASTER_0 == master) {
+ msm_camera_io_w_mb(clk_params->hw_thigh << 16 |
+ clk_params->hw_tlow,
+ cci_dev->base + CCI_I2C_M0_SCL_CTL_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_tsu_sto << 16 |
+ clk_params->hw_tsu_sta,
+ cci_dev->base + CCI_I2C_M0_SDA_CTL_0_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_thd_dat << 16 |
+ clk_params->hw_thd_sta,
+ cci_dev->base + CCI_I2C_M0_SDA_CTL_1_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_tbuf,
+ cci_dev->base + CCI_I2C_M0_SDA_CTL_2_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_scl_stretch_en << 8 |
+ clk_params->hw_trdhld << 4 | clk_params->hw_tsp,
+ cci_dev->base + CCI_I2C_M0_MISC_CTL_ADDR);
+ } else if (MASTER_1 == master) {
+ msm_camera_io_w_mb(clk_params->hw_thigh << 16 |
+ clk_params->hw_tlow,
+ cci_dev->base + CCI_I2C_M1_SCL_CTL_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_tsu_sto << 16 |
+ clk_params->hw_tsu_sta,
+ cci_dev->base + CCI_I2C_M1_SDA_CTL_0_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_thd_dat << 16 |
+ clk_params->hw_thd_sta,
+ cci_dev->base + CCI_I2C_M1_SDA_CTL_1_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_tbuf,
+ cci_dev->base + CCI_I2C_M1_SDA_CTL_2_ADDR);
+ msm_camera_io_w_mb(clk_params->hw_scl_stretch_en << 8 |
+ clk_params->hw_trdhld << 4 | clk_params->hw_tsp,
+ cci_dev->base + CCI_I2C_M1_MISC_CTL_ADDR);
+ }
+ cci_dev->master_clk_init[master] = 1;
+ return;
+}
+
+static void msm_cci_flush_queue(struct cci_device *cci_dev,
+ enum cci_i2c_master_t master)
+{
+ int32_t rc = 0;
+
+ msm_camera_io_w_mb(1 << master, cci_dev->base + CCI_HALT_REQ_ADDR);
+ rc = wait_for_completion_timeout(
+ &cci_dev->cci_master_info[master].reset_complete, CCI_TIMEOUT);
+ if (rc < 0) {
+ pr_err("%s:%d wait failed\n", __func__, __LINE__);
+ } else if (rc == 0) {
+ pr_err("%s:%d wait timeout\n", __func__, __LINE__);
+
+ /* Set reset pending flag to TRUE */
+ cci_dev->cci_master_info[master].reset_pending = TRUE;
+
+ /* Set proper mask to RESET CMD address based on MASTER */
+ if (master == MASTER_0)
+ msm_camera_io_w_mb(CCI_M0_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+ else
+ msm_camera_io_w_mb(CCI_M1_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+
+ /* wait for reset done irq */
+ rc = wait_for_completion_timeout(
+ &cci_dev->cci_master_info[master].reset_complete,
+ CCI_TIMEOUT);
+ if (rc <= 0)
+ pr_err("%s:%d wait failed %d\n", __func__, __LINE__,
+ rc);
+ }
+ return;
+}
+
+static int32_t msm_cci_validate_queue(struct cci_device *cci_dev,
+ uint32_t len,
+ enum cci_i2c_master_t master,
+ enum cci_i2c_queue_t queue)
+{
+ int32_t rc = 0;
+ uint32_t read_val = 0;
+ uint32_t reg_offset = master * 0x200 + queue * 0x100;
+ read_val = msm_camera_io_r_mb(cci_dev->base +
+ CCI_I2C_M0_Q0_CUR_WORD_CNT_ADDR + reg_offset);
+ CDBG("%s line %d CCI_I2C_M0_Q0_CUR_WORD_CNT_ADDR %d len %d max %d\n",
+ __func__, __LINE__, read_val, len,
+ cci_dev->cci_i2c_queue_info[master][queue].max_queue_size);
+ if ((read_val + len + 1) > cci_dev->
+ cci_i2c_queue_info[master][queue].max_queue_size) {
+ uint32_t reg_val = 0;
+ uint32_t report_val = CCI_I2C_REPORT_CMD | (1 << 8);
+ CDBG("%s:%d CCI_I2C_REPORT_CMD\n", __func__, __LINE__);
+ msm_camera_io_w_mb(report_val,
+ cci_dev->base + CCI_I2C_M0_Q0_LOAD_DATA_ADDR +
+ reg_offset);
+ read_val++;
+ CDBG("%s:%d CCI_I2C_M0_Q0_EXEC_WORD_CNT_ADDR %d\n",
+ __func__, __LINE__, read_val);
+ msm_camera_io_w_mb(read_val, cci_dev->base +
+ CCI_I2C_M0_Q0_EXEC_WORD_CNT_ADDR + reg_offset);
+ reg_val = 1 << ((master * 2) + queue);
+ CDBG("%s:%d CCI_QUEUE_START_ADDR\n", __func__, __LINE__);
+ msm_camera_io_w_mb(reg_val, cci_dev->base +
+ CCI_QUEUE_START_ADDR);
+ CDBG("%s line %d wait_for_completion_timeout\n",
+ __func__, __LINE__);
+ rc = wait_for_completion_timeout(&cci_dev->
+ cci_master_info[master].reset_complete, CCI_TIMEOUT);
+ if (rc <= 0) {
+ pr_err("%s: wait_for_completion_timeout %d\n",
+ __func__, __LINE__);
+ if (rc == 0)
+ rc = -ETIMEDOUT;
+ msm_cci_flush_queue(cci_dev, master);
+ return rc;
+ }
+ rc = cci_dev->cci_master_info[master].status;
+ if (rc < 0)
+ pr_err("%s failed rc %d\n", __func__, rc);
+ }
+ return rc;
+}
+
+static int32_t msm_cci_data_queue(struct cci_device *cci_dev,
+ struct msm_camera_cci_ctrl *c_ctrl, enum cci_i2c_queue_t queue)
+{
+ uint16_t i = 0, j = 0, k = 0, h = 0, len = 0;
+ int32_t rc = 0;
+ uint32_t cmd = 0, delay = 0;
+ uint8_t data[11];
+ uint16_t reg_addr = 0;
+ struct msm_camera_i2c_reg_setting *i2c_msg =
+ &c_ctrl->cfg.cci_i2c_write_cfg;
+ uint16_t cmd_size = i2c_msg->size;
+ struct msm_camera_i2c_reg_array *i2c_cmd = i2c_msg->reg_setting;
+ enum cci_i2c_master_t master = c_ctrl->cci_info->cci_i2c_master;
+
+ if (i2c_cmd == NULL) {
+ pr_err("%s:%d Failed line\n", __func__,
+ __LINE__);
+ return -EINVAL;
+ }
+
+ if ((!cmd_size) || (cmd_size > CCI_I2C_MAX_WRITE)) {
+ pr_err("%s:%d Failed line\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+
+ CDBG("%s addr type %d data type %d\n", __func__,
+ i2c_msg->addr_type, i2c_msg->data_type);
+
+ if (i2c_msg->addr_type >= MSM_CAMERA_I2C_ADDR_TYPE_MAX) {
+ pr_err("%s failed line %d\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+ if (i2c_msg->data_type >= MSM_CAMERA_I2C_DATA_TYPE_MAX) {
+ pr_err("%s failed line %d\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+ /* assume total size within the max queue */
+ while (cmd_size) {
+ CDBG("%s cmd_size %d addr 0x%x data 0x%x", __func__,
+ cmd_size, i2c_cmd->reg_addr, i2c_cmd->reg_data);
+ delay = i2c_cmd->delay;
+ data[i++] = CCI_I2C_WRITE_CMD;
+ if (i2c_cmd->reg_addr)
+ reg_addr = i2c_cmd->reg_addr;
+ /* either byte or word addr */
+ if (i2c_msg->addr_type == MSM_CAMERA_I2C_BYTE_ADDR)
+ data[i++] = reg_addr;
+ else {
+ data[i++] = (reg_addr & 0xFF00) >> 8;
+ data[i++] = reg_addr & 0x00FF;
+ }
+ /* max of 10 data bytes */
+ do {
+ if (i2c_msg->data_type == MSM_CAMERA_I2C_BYTE_DATA) {
+ data[i++] = i2c_cmd->reg_data;
+ reg_addr++;
+ } else {
+ if ((i + 1) <= 10) {
+ data[i++] = (i2c_cmd->reg_data &
+ 0xFF00) >> 8; /* MSB */
+ data[i++] = i2c_cmd->reg_data &
+ 0x00FF; /* LSB */
+ reg_addr += 2;
+ } else
+ break;
+ }
+ i2c_cmd++;
+ } while (--cmd_size && !i2c_cmd->reg_addr && (i <= 10));
+ data[0] |= ((i-1) << 4);
+ len = ((i-1)/4) + 1;
+ rc = msm_cci_validate_queue(cci_dev, len, master, queue);
+ if (rc < 0) {
+ pr_err("%s: failed %d", __func__, __LINE__);
+ return rc;
+ }
+ for (h = 0, k = 0; h < len; h++) {
+ cmd = 0;
+ for (j = 0; (j < 4 && k < i); j++)
+ cmd |= (data[k++] << (j * 8));
+ CDBG("%s CCI_I2C_M0_Q0_LOAD_DATA_ADDR 0x%x\n",
+ __func__, cmd);
+ msm_camera_io_w_mb(cmd, cci_dev->base +
+ CCI_I2C_M0_Q0_LOAD_DATA_ADDR +
+ master * 0x200 + queue * 0x100);
+ }
+ if ((delay > 0) && (delay < CCI_MAX_DELAY)) {
+ cmd = (uint32_t)((delay * cci_dev->cycles_per_us) /
+ 0x100);
+ cmd <<= 4;
+ cmd |= CCI_I2C_WAIT_CMD;
+ CDBG("%s CCI_I2C_M0_Q0_LOAD_DATA_ADDR 0x%x\n",
+ __func__, cmd);
+ msm_camera_io_w_mb(cmd, cci_dev->base +
+ CCI_I2C_M0_Q0_LOAD_DATA_ADDR +
+ master * 0x200 + queue * 0x100);
+ }
+ i = 0;
+ }
+ return rc;
+}
+
+static int32_t msm_cci_write_i2c_queue(struct cci_device *cci_dev,
+ uint32_t val,
+ enum cci_i2c_master_t master,
+ enum cci_i2c_queue_t queue)
+{
+ int32_t rc = 0;
+ uint32_t reg_offset = master * 0x200 + queue * 0x100;
+ CDBG("%s:%d called\n", __func__, __LINE__);
+ rc = msm_cci_validate_queue(cci_dev, 1, master, queue);
+ if (rc < 0) {
+ pr_err("%s: failed %d", __func__, __LINE__);
+ return rc;
+ }
+ CDBG("%s CCI_I2C_M0_Q0_LOAD_DATA_ADDR:val 0x%x:0x%x\n",
+ __func__, CCI_I2C_M0_Q0_LOAD_DATA_ADDR +
+ reg_offset, val);
+ msm_camera_io_w_mb(val, cci_dev->base + CCI_I2C_M0_Q0_LOAD_DATA_ADDR +
+ reg_offset);
+ return rc;
+}
+
+static int32_t msm_cci_i2c_read(struct v4l2_subdev *sd,
+ struct msm_camera_cci_ctrl *c_ctrl)
+{
+ int32_t rc = 0;
+ uint32_t val = 0;
+ int32_t read_words = 0, exp_words = 0;
+ int32_t index = 0, first_byte = 0;
+ uint32_t i = 0;
+ enum cci_i2c_master_t master;
+ enum cci_i2c_queue_t queue = QUEUE_1;
+ struct cci_device *cci_dev = NULL;
+ struct msm_camera_cci_i2c_read_cfg *read_cfg = NULL;
+ CDBG("%s line %d\n", __func__, __LINE__);
+ cci_dev = v4l2_get_subdevdata(sd);
+ master = c_ctrl->cci_info->cci_i2c_master;
+ read_cfg = &c_ctrl->cfg.cci_i2c_read_cfg;
+ mutex_lock(&cci_dev->cci_master_info[master].mutex);
+
+ /*
+ * Call validate queue to make sure queue is empty before starting.
+ * If this call fails, don't proceed with i2c_read call. This is to
+ * avoid overflow / underflow of queue
+ */
+ rc = msm_cci_validate_queue(cci_dev,
+ cci_dev->cci_i2c_queue_info[master][queue].max_queue_size - 1,
+ master, queue);
+ if (rc < 0) {
+ pr_err("%s:%d Initial validataion failed rc %d\n", __func__,
+ __LINE__, rc);
+ goto ERROR;
+ }
+
+ if (c_ctrl->cci_info->retries > CCI_I2C_READ_MAX_RETRIES) {
+ pr_err("%s:%d More than max retries\n", __func__,
+ __LINE__);
+ goto ERROR;
+ }
+
+ if (read_cfg->data == NULL) {
+ pr_err("%s:%d Data ptr is NULL\n", __func__,
+ __LINE__);
+ goto ERROR;
+ }
+
+ CDBG("%s master %d, queue %d\n", __func__, master, queue);
+ CDBG("%s set param sid 0x%x retries %d id_map %d\n", __func__,
+ c_ctrl->cci_info->sid, c_ctrl->cci_info->retries,
+ c_ctrl->cci_info->id_map);
+ val = CCI_I2C_SET_PARAM_CMD | c_ctrl->cci_info->sid << 4 |
+ c_ctrl->cci_info->retries << 16 |
+ c_ctrl->cci_info->id_map << 18;
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_LOCK_CMD;
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ if (read_cfg->addr_type >= MSM_CAMERA_I2C_ADDR_TYPE_MAX) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ if (read_cfg->addr_type == MSM_CAMERA_I2C_BYTE_ADDR)
+ val = CCI_I2C_WRITE_DISABLE_P_CMD | (read_cfg->addr_type << 4) |
+ ((read_cfg->addr & 0xFF) << 8);
+ if (read_cfg->addr_type == MSM_CAMERA_I2C_WORD_ADDR)
+ val = CCI_I2C_WRITE_DISABLE_P_CMD | (read_cfg->addr_type << 4) |
+ (((read_cfg->addr & 0xFF00) >> 8) << 8) |
+ ((read_cfg->addr & 0xFF) << 16);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_READ_CMD | (read_cfg->num_byte << 4);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_UNLOCK_CMD;
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = msm_camera_io_r_mb(cci_dev->base + CCI_I2C_M0_Q0_CUR_WORD_CNT_ADDR
+ + master * 0x200 + queue * 0x100);
+ CDBG("%s cur word cnt 0x%x\n", __func__, val);
+ msm_camera_io_w_mb(val, cci_dev->base + CCI_I2C_M0_Q0_EXEC_WORD_CNT_ADDR
+ + master * 0x200 + queue * 0x100);
+
+ val = 1 << ((master * 2) + queue);
+ msm_camera_io_w_mb(val, cci_dev->base + CCI_QUEUE_START_ADDR);
+ CDBG("%s:%d E wait_for_completion_timeout\n", __func__,
+ __LINE__);
+ rc = wait_for_completion_timeout(&cci_dev->
+ cci_master_info[master].reset_complete, CCI_TIMEOUT);
+ if (rc <= 0) {
+ pr_err("%s: wait_for_completion_timeout %d\n",
+ __func__, __LINE__);
+ if (rc == 0)
+ rc = -ETIMEDOUT;
+ msm_cci_flush_queue(cci_dev, master);
+ goto ERROR;
+ } else {
+ rc = 0;
+ }
+ CDBG("%s:%d E wait_for_completion_timeout\n", __func__,
+ __LINE__);
+
+ read_words = msm_camera_io_r_mb(cci_dev->base +
+ CCI_I2C_M0_READ_BUF_LEVEL_ADDR + master * 0x100);
+ exp_words = ((read_cfg->num_byte / 4) + 1);
+ if (read_words != exp_words) {
+ pr_err("%s:%d read_words = %d, exp words = %d\n", __func__,
+ __LINE__, read_words, exp_words);
+ memset(read_cfg->data, 0, read_cfg->num_byte);
+ rc = -EINVAL;
+ goto ERROR;
+ }
+ index = 0;
+ CDBG("%s index %d num_type %d\n", __func__, index,
+ read_cfg->num_byte);
+ first_byte = 0;
+ do {
+ val = msm_camera_io_r_mb(cci_dev->base +
+ CCI_I2C_M0_READ_DATA_ADDR + master * 0x100);
+ CDBG("%s read val 0x%x\n", __func__, val);
+ for (i = 0; (i < 4) && (index < read_cfg->num_byte); i++) {
+ CDBG("%s i %d index %d\n", __func__, i, index);
+ if (!first_byte) {
+ CDBG("%s sid 0x%x\n", __func__, val & 0xFF);
+ first_byte++;
+ } else {
+ read_cfg->data[index] =
+ (val >> (i * 8)) & 0xFF;
+ CDBG("%s data[%d] 0x%x\n", __func__, index,
+ read_cfg->data[index]);
+ index++;
+ }
+ }
+ } while (--read_words > 0);
+ERROR:
+ mutex_unlock(&cci_dev->cci_master_info[master].mutex);
+ return rc;
+}
+
+static int32_t msm_cci_i2c_read_bytes(struct v4l2_subdev *sd,
+ struct msm_camera_cci_ctrl *c_ctrl)
+{
+ int32_t rc = 0;
+ struct cci_device *cci_dev = NULL;
+ enum cci_i2c_master_t master;
+ struct msm_camera_cci_i2c_read_cfg *read_cfg = NULL;
+ uint16_t read_bytes = 0;
+
+ if (!sd || !c_ctrl) {
+ pr_err("%s:%d sd %p c_ctrl %p\n", __func__,
+ __LINE__, sd, c_ctrl);
+ return -EINVAL;
+ }
+ if (!c_ctrl->cci_info) {
+ pr_err("%s:%d cci_info NULL\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+ cci_dev = v4l2_get_subdevdata(sd);
+ if (!cci_dev) {
+ pr_err("%s:%d cci_dev NULL\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+
+ if (c_ctrl->cci_info->cci_i2c_master > MASTER_MAX
+ || c_ctrl->cci_info->cci_i2c_master < 0) {
+ pr_err("%s:%d Invalid I2C master addr\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+
+ master = c_ctrl->cci_info->cci_i2c_master;
+ read_cfg = &c_ctrl->cfg.cci_i2c_read_cfg;
+ if ((!read_cfg->num_byte) || (read_cfg->num_byte > CCI_I2C_MAX_READ)) {
+ pr_err("%s:%d read num bytes 0\n", __func__, __LINE__);
+ rc = -EINVAL;
+ goto ERROR;
+ }
+
+ read_bytes = read_cfg->num_byte;
+ do {
+ if (read_bytes > CCI_READ_MAX)
+ read_cfg->num_byte = CCI_READ_MAX;
+ else
+ read_cfg->num_byte = read_bytes;
+ rc = msm_cci_i2c_read(sd, c_ctrl);
+ if (rc < 0) {
+ pr_err("%s:%d failed rc %d\n", __func__, __LINE__, rc);
+ goto ERROR;
+ }
+ if (read_bytes > CCI_READ_MAX) {
+ read_cfg->addr += CCI_READ_MAX;
+ read_cfg->data += CCI_READ_MAX;
+ read_bytes -= CCI_READ_MAX;
+ } else {
+ read_bytes = 0;
+ }
+ } while (read_bytes);
+ERROR:
+ return rc;
+}
+
+static int32_t msm_cci_i2c_write(struct v4l2_subdev *sd,
+ struct msm_camera_cci_ctrl *c_ctrl)
+{
+ int32_t rc = 0;
+ struct cci_device *cci_dev;
+ uint32_t val;
+ enum cci_i2c_master_t master;
+ enum cci_i2c_queue_t queue = QUEUE_0;
+ cci_dev = v4l2_get_subdevdata(sd);
+ if (c_ctrl->cci_info->cci_i2c_master > MASTER_MAX
+ || c_ctrl->cci_info->cci_i2c_master < 0) {
+ pr_err("%s:%d Invalid I2C master addr\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+ master = c_ctrl->cci_info->cci_i2c_master;
+ CDBG("%s master %d, queue %d\n", __func__, master, queue);
+ CDBG("%s set param sid 0x%x retries %d id_map %d\n", __func__,
+ c_ctrl->cci_info->sid, c_ctrl->cci_info->retries,
+ c_ctrl->cci_info->id_map);
+ mutex_lock(&cci_dev->cci_master_info[master].mutex);
+
+ /*
+ * Call validate queue to make sure queue is empty before starting.
+ * If this call fails, don't proceed with i2c_write call. This is to
+ * avoid overflow / underflow of queue
+ */
+ rc = msm_cci_validate_queue(cci_dev,
+ cci_dev->cci_i2c_queue_info[master][queue].max_queue_size - 1,
+ master, queue);
+ if (rc < 0) {
+ pr_err("%s:%d Initial validataion failed rc %d\n", __func__,
+ __LINE__, rc);
+ goto ERROR;
+ }
+ if (c_ctrl->cci_info->retries > CCI_I2C_READ_MAX_RETRIES) {
+ pr_err("%s:%d More than max retries\n", __func__,
+ __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_SET_PARAM_CMD | c_ctrl->cci_info->sid << 4 |
+ c_ctrl->cci_info->retries << 16 |
+ c_ctrl->cci_info->id_map << 18;
+ CDBG("%s:%d CCI_I2C_SET_PARAM_CMD\n", __func__, __LINE__);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_LOCK_CMD;
+ CDBG("%s:%d CCI_I2C_LOCK_CMD\n", __func__, __LINE__);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ rc = msm_cci_data_queue(cci_dev, c_ctrl, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+ val = CCI_I2C_UNLOCK_CMD;
+ CDBG("%s:%d CCI_I2C_UNLOCK_CMD\n", __func__, __LINE__);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = CCI_I2C_REPORT_CMD | (1 << 8);
+ CDBG("%s:%d CCI_I2C_REPORT_CMD\n", __func__, __LINE__);
+ rc = msm_cci_write_i2c_queue(cci_dev, val, master, queue);
+ if (rc < 0) {
+ CDBG("%s failed line %d\n", __func__, __LINE__);
+ goto ERROR;
+ }
+
+ val = msm_camera_io_r_mb(cci_dev->base + CCI_I2C_M0_Q0_CUR_WORD_CNT_ADDR
+ + master * 0x200 + queue * 0x100);
+ CDBG("%s:%d cur word count %d\n", __func__, __LINE__, val);
+ CDBG("%s:%d CCI_I2C_M0_Q0_EXEC_WORD_CNT_ADDR\n", __func__, __LINE__);
+ msm_camera_io_w_mb(val, cci_dev->base + CCI_I2C_M0_Q0_EXEC_WORD_CNT_ADDR
+ + master * 0x200 + queue * 0x100);
+
+ val = 1 << ((master * 2) + queue);
+ CDBG("%s:%d CCI_QUEUE_START_ADDR\n", __func__, __LINE__);
+ msm_camera_io_w_mb(val, cci_dev->base + CCI_QUEUE_START_ADDR);
+
+ CDBG("%s:%d E wait_for_completion_timeout\n",
+ __func__, __LINE__);
+ rc = wait_for_completion_timeout(&cci_dev->
+ cci_master_info[master].reset_complete, CCI_TIMEOUT);
+ if (rc <= 0) {
+ pr_err("%s: wait_for_completion_timeout %d\n",
+ __func__, __LINE__);
+ if (rc == 0)
+ rc = -ETIMEDOUT;
+ msm_cci_flush_queue(cci_dev, master);
+ goto ERROR;
+ } else {
+ rc = cci_dev->cci_master_info[master].status;
+ }
+ CDBG("%s:%d X wait_for_completion_timeout\n", __func__,
+ __LINE__);
+
+ERROR:
+ mutex_unlock(&cci_dev->cci_master_info[master].mutex);
+ return rc;
+}
+
+static int32_t msm_cci_init(struct v4l2_subdev *sd,
+ struct msm_camera_cci_ctrl *c_ctrl)
+{
+ uint8_t i = 0;
+ int32_t rc = 0;
+ struct cci_device *cci_dev;
+ enum cci_i2c_master_t master;
+
+ cci_dev = v4l2_get_subdevdata(sd);
+ if (!cci_dev || !c_ctrl) {
+ pr_err("%s:%d failed: invalid params %p %p\n", __func__,
+ __LINE__, cci_dev, c_ctrl);
+ rc = -ENOMEM;
+ return rc;
+ }
+ if (cci_dev->ref_count++) {
+ CDBG("%s ref_count %d\n", __func__, cci_dev->ref_count);
+ master = c_ctrl->cci_info->cci_i2c_master;
+ CDBG("%s:%d master %d\n", __func__, __LINE__, master);
+ msm_cci_set_clk_param(cci_dev, c_ctrl);
+ if (master < MASTER_MAX && master >= 0) {
+ mutex_lock(&cci_dev->cci_master_info[master].mutex);
+ /* Set reset pending flag to TRUE */
+ cci_dev->cci_master_info[master].reset_pending = TRUE;
+ /* Set proper mask to RESET CMD address */
+ if (master == MASTER_0)
+ msm_camera_io_w_mb(CCI_M0_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+ else
+ msm_camera_io_w_mb(CCI_M1_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+ /* wait for reset done irq */
+ rc = wait_for_completion_timeout(
+ &cci_dev->cci_master_info[master].
+ reset_complete,
+ CCI_TIMEOUT);
+ if (rc <= 0)
+ pr_err("%s:%d wait failed %d\n", __func__,
+ __LINE__, rc);
+ mutex_unlock(&cci_dev->cci_master_info[master].mutex);
+ }
+ return 0;
+ }
+ rc = msm_camera_request_gpio_table(cci_dev->cci_gpio_tbl,
+ cci_dev->cci_gpio_tbl_size, 1);
+ if (rc < 0) {
+ CDBG("%s: request gpio failed\n", __func__);
+ goto request_gpio_failed;
+ }
+ cci_dev->reg_ptr = regulator_get(&(cci_dev->pdev->dev),
+ "qcom,gdscr-vdd");
+ if (IS_ERR_OR_NULL(cci_dev->reg_ptr)) {
+ pr_err(" %s: Failed in getting TOP gdscr regulator handle",
+ __func__);
+ } else {
+ rc = regulator_enable(cci_dev->reg_ptr);
+ if (rc) {
+ pr_err(" %s: regulator enable failed for TOP GDSCR\n",
+ __func__);
+ goto clk_enable_failed;
+ }
+ }
+ rc = msm_cam_clk_enable(&cci_dev->pdev->dev, cci_clk_info,
+ cci_dev->cci_clk, cci_dev->num_clk, 1);
+ if (rc < 0) {
+ CDBG("%s: clk enable failed\n", __func__);
+ goto clk_enable_failed;
+ }
+ enable_irq(cci_dev->irq->start);
+ cci_dev->hw_version = msm_camera_io_r_mb(cci_dev->base +
+ CCI_HW_VERSION_ADDR);
+ pr_info("%s:%d: hw_version = 0x%x\n", __func__, __LINE__,
+ cci_dev->hw_version);
+ cci_dev->cci_master_info[MASTER_0].reset_pending = TRUE;
+ msm_camera_io_w_mb(CCI_RESET_CMD_RMSK, cci_dev->base +
+ CCI_RESET_CMD_ADDR);
+ msm_camera_io_w_mb(0x1, cci_dev->base + CCI_RESET_CMD_ADDR);
+ rc = wait_for_completion_timeout(
+ &cci_dev->cci_master_info[MASTER_0].reset_complete,
+ CCI_TIMEOUT);
+ if (rc <= 0) {
+ pr_err("%s: wait_for_completion_timeout %d\n",
+ __func__, __LINE__);
+ if (rc == 0)
+ rc = -ETIMEDOUT;
+ goto reset_complete_failed;
+ }
+ for (i = 0; i < MASTER_MAX; i++)
+ cci_dev->master_clk_init[i] = 0;
+ msm_cci_set_clk_param(cci_dev, c_ctrl);
+ msm_camera_io_w_mb(CCI_IRQ_MASK_0_RMSK,
+ cci_dev->base + CCI_IRQ_MASK_0_ADDR);
+ msm_camera_io_w_mb(CCI_IRQ_MASK_0_RMSK,
+ cci_dev->base + CCI_IRQ_CLEAR_0_ADDR);
+ msm_camera_io_w_mb(0x1, cci_dev->base + CCI_IRQ_GLOBAL_CLEAR_CMD_ADDR);
+ cci_dev->cci_state = CCI_STATE_ENABLED;
+
+ return 0;
+
+reset_complete_failed:
+ disable_irq(cci_dev->irq->start);
+ msm_cam_clk_enable(&cci_dev->pdev->dev, cci_clk_info,
+ cci_dev->cci_clk, cci_dev->num_clk, 0);
+clk_enable_failed:
+ msm_camera_request_gpio_table(cci_dev->cci_gpio_tbl,
+ cci_dev->cci_gpio_tbl_size, 0);
+
+ if (!IS_ERR_OR_NULL(cci_dev->reg_ptr)) {
+ regulator_disable(cci_dev->reg_ptr);
+ regulator_put(cci_dev->reg_ptr);
+ cci_dev->reg_ptr = NULL;
+ }
+request_gpio_failed:
+ cci_dev->ref_count--;
+ return rc;
+}
+
+static int32_t msm_cci_release(struct v4l2_subdev *sd)
+{
+ uint8_t i = 0;
+ struct cci_device *cci_dev;
+
+ cci_dev = v4l2_get_subdevdata(sd);
+ if (!cci_dev->ref_count || cci_dev->cci_state != CCI_STATE_ENABLED) {
+ pr_err("%s invalid ref count %d / cci state %d\n",
+ __func__, cci_dev->ref_count, cci_dev->cci_state);
+ return -EINVAL;
+ }
+ if (--cci_dev->ref_count) {
+ CDBG("%s ref_count Exit %d\n", __func__, cci_dev->ref_count);
+ return 0;
+ }
+ disable_irq(cci_dev->irq->start);
+ msm_cam_clk_enable(&cci_dev->pdev->dev, cci_clk_info,
+ cci_dev->cci_clk, cci_dev->num_clk, 0);
+ if (!IS_ERR_OR_NULL(cci_dev->reg_ptr)) {
+ regulator_disable(cci_dev->reg_ptr);
+ regulator_put(cci_dev->reg_ptr);
+ cci_dev->reg_ptr = NULL;
+ }
+ msm_camera_request_gpio_table(cci_dev->cci_gpio_tbl,
+ cci_dev->cci_gpio_tbl_size, 0);
+ for (i = 0; i < MASTER_MAX; i++)
+ cci_dev->master_clk_init[i] = 0;
+ cci_dev->cci_state = CCI_STATE_DISABLED;
+
+ return 0;
+}
+
+static int32_t msm_cci_config(struct v4l2_subdev *sd,
+ struct msm_camera_cci_ctrl *cci_ctrl)
+{
+ int32_t rc = 0;
+ CDBG("%s line %d cmd %d\n", __func__, __LINE__,
+ cci_ctrl->cmd);
+ switch (cci_ctrl->cmd) {
+ case MSM_CCI_INIT:
+ rc = msm_cci_init(sd, cci_ctrl);
+ break;
+ case MSM_CCI_RELEASE:
+ rc = msm_cci_release(sd);
+ break;
+ case MSM_CCI_I2C_READ:
+ rc = msm_cci_i2c_read_bytes(sd, cci_ctrl);
+ break;
+ case MSM_CCI_I2C_WRITE:
+ rc = msm_cci_i2c_write(sd, cci_ctrl);
+ break;
+ case MSM_CCI_GPIO_WRITE:
+ break;
+ default:
+ rc = -ENOIOCTLCMD;
+ }
+ CDBG("%s line %d rc %d\n", __func__, __LINE__, rc);
+ cci_ctrl->status = rc;
+ return rc;
+}
+
+static irqreturn_t msm_cci_irq(int irq_num, void *data)
+{
+ uint32_t irq;
+ struct cci_device *cci_dev = data;
+ irq = msm_camera_io_r_mb(cci_dev->base + CCI_IRQ_STATUS_0_ADDR);
+ msm_camera_io_w_mb(irq, cci_dev->base + CCI_IRQ_CLEAR_0_ADDR);
+ msm_camera_io_w_mb(0x1, cci_dev->base + CCI_IRQ_GLOBAL_CLEAR_CMD_ADDR);
+ msm_camera_io_w_mb(0x0, cci_dev->base + CCI_IRQ_GLOBAL_CLEAR_CMD_ADDR);
+ CDBG("%s CCI_I2C_M0_STATUS_ADDR = 0x%x\n", __func__, irq);
+ if (irq & CCI_IRQ_STATUS_0_RST_DONE_ACK_BMSK) {
+ if (cci_dev->cci_master_info[MASTER_0].reset_pending == TRUE) {
+ cci_dev->cci_master_info[MASTER_0].reset_pending =
+ FALSE;
+ complete(&cci_dev->cci_master_info[MASTER_0].
+ reset_complete);
+ }
+ if (cci_dev->cci_master_info[MASTER_1].reset_pending == TRUE) {
+ cci_dev->cci_master_info[MASTER_1].reset_pending =
+ FALSE;
+ complete(&cci_dev->cci_master_info[MASTER_1].
+ reset_complete);
+ }
+ }
+ if ((irq & CCI_IRQ_STATUS_0_I2C_M0_RD_DONE_BMSK) ||
+ (irq & CCI_IRQ_STATUS_0_I2C_M0_Q0_REPORT_BMSK) ||
+ (irq & CCI_IRQ_STATUS_0_I2C_M0_Q1_REPORT_BMSK)) {
+ cci_dev->cci_master_info[MASTER_0].status = 0;
+ complete(&cci_dev->cci_master_info[MASTER_0].reset_complete);
+ }
+ if ((irq & CCI_IRQ_STATUS_0_I2C_M1_RD_DONE_BMSK) ||
+ (irq & CCI_IRQ_STATUS_0_I2C_M1_Q0_REPORT_BMSK) ||
+ (irq & CCI_IRQ_STATUS_0_I2C_M1_Q1_REPORT_BMSK)) {
+ cci_dev->cci_master_info[MASTER_1].status = 0;
+ complete(&cci_dev->cci_master_info[MASTER_1].reset_complete);
+ }
+ if (irq & CCI_IRQ_STATUS_0_I2C_M0_Q0Q1_HALT_ACK_BMSK) {
+ cci_dev->cci_master_info[MASTER_0].reset_pending = TRUE;
+ msm_camera_io_w_mb(CCI_M0_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+ }
+ if (irq & CCI_IRQ_STATUS_0_I2C_M1_Q0Q1_HALT_ACK_BMSK) {
+ cci_dev->cci_master_info[MASTER_1].reset_pending = TRUE;
+ msm_camera_io_w_mb(CCI_M1_RESET_RMSK,
+ cci_dev->base + CCI_RESET_CMD_ADDR);
+ }
+ if (irq & CCI_IRQ_STATUS_0_I2C_M0_ERROR_BMSK) {
+ pr_err("%s:%d MASTER_0 error 0x%x\n", __func__, __LINE__, irq);
+ cci_dev->cci_master_info[MASTER_0].status = -EINVAL;
+ msm_camera_io_w_mb(CCI_M0_HALT_REQ_RMSK,
+ cci_dev->base + CCI_HALT_REQ_ADDR);
+ }
+ if (irq & CCI_IRQ_STATUS_0_I2C_M1_ERROR_BMSK) {
+ pr_err("%s:%d MASTER_1 error 0x%x\n", __func__, __LINE__, irq);
+ cci_dev->cci_master_info[MASTER_1].status = -EINVAL;
+ msm_camera_io_w_mb(CCI_M1_HALT_REQ_RMSK,
+ cci_dev->base + CCI_HALT_REQ_ADDR);
+ }
+ return IRQ_HANDLED;
+}
+
+static int msm_cci_irq_routine(struct v4l2_subdev *sd, u32 status,
+ bool *handled)
+{
+ struct cci_device *cci_dev = v4l2_get_subdevdata(sd);
+ irqreturn_t ret;
+ CDBG("%s line %d\n", __func__, __LINE__);
+ ret = msm_cci_irq(cci_dev->irq->start, cci_dev);
+ CDBG("%s: msm_cci_irq return %d\n", __func__, ret);
+ *handled = TRUE;
+ return 0;
+}
+
+static long msm_cci_subdev_ioctl(struct v4l2_subdev *sd,
+ unsigned int cmd, void *arg)
+{
+ int32_t rc = 0;
+ CDBG("%s line %d\n", __func__, __LINE__);
+ switch (cmd) {
+ case VIDIOC_MSM_CCI_CFG:
+ rc = msm_cci_config(sd, arg);
+ break;
+/* case MSM_SD_NOTIFY_FREEZE:
+ break;
+ case MSM_SD_SHUTDOWN: {
+ struct msm_camera_cci_ctrl ctrl_cmd;
+ ctrl_cmd.cmd = MSM_CCI_RELEASE;
+ rc = msm_cci_config(sd, &ctrl_cmd);
+ break;
+ }*/
+ default:
+ rc = -ENOIOCTLCMD;
+ }
+ CDBG("%s line %d rc %d\n", __func__, __LINE__, rc);
+ return rc;
+}
+
+static struct v4l2_subdev_core_ops msm_cci_subdev_core_ops = {
+ .ioctl = &msm_cci_subdev_ioctl,
+ .interrupt_service_routine = msm_cci_irq_routine,
+};
+
+static const struct v4l2_subdev_ops msm_cci_subdev_ops = {
+ .core = &msm_cci_subdev_core_ops,
+};
+
+static const struct v4l2_subdev_internal_ops msm_cci_internal_ops;
+
+static void msm_cci_init_cci_params(struct cci_device *new_cci_dev)
+{
+ uint8_t i = 0, j = 0;
+ for (i = 0; i < NUM_MASTERS; i++) {
+ new_cci_dev->cci_master_info[i].status = 0;
+ mutex_init(&new_cci_dev->cci_master_info[i].mutex);
+ init_completion(&new_cci_dev->
+ cci_master_info[i].reset_complete);
+ for (j = 0; j < NUM_QUEUES; j++) {
+ if (j == QUEUE_0)
+ new_cci_dev->cci_i2c_queue_info[i][j].
+ max_queue_size = CCI_I2C_QUEUE_0_SIZE;
+ else
+ new_cci_dev->cci_i2c_queue_info[i][j].
+ max_queue_size = CCI_I2C_QUEUE_1_SIZE;
+ }
+ }
+ return;
+}
+
+static int32_t msm_cci_init_gpio_params(struct cci_device *cci_dev)
+{
+ int32_t rc = 0, i = 0;
+ uint32_t *val_array = NULL;
+ uint8_t tbl_size = 0;
+ struct device_node *of_node = cci_dev->pdev->dev.of_node;
+ struct gpio *gpio_tbl = NULL;
+
+ cci_dev->cci_gpio_tbl_size = tbl_size = 0; //of_gpio_count(of_node);
+ CDBG("%s gpio count %d\n", __func__, tbl_size);
+ if (!tbl_size) {
+ pr_err("%s:%d gpio count 0\n", __func__, __LINE__);
+ return 0;
+ }
+
+ gpio_tbl = cci_dev->cci_gpio_tbl =
+ kzalloc(sizeof(struct gpio) * tbl_size, GFP_KERNEL);
+ if (!gpio_tbl) {
+ pr_err("%s failed %d\n", __func__, __LINE__);
+ return 0;
+ }
+
+ for (i = 0; i < tbl_size; i++) {
+ gpio_tbl[i].gpio = of_get_gpio(of_node, i);
+ CDBG("%s gpio_tbl[%d].gpio = %d\n", __func__, i,
+ gpio_tbl[i].gpio);
+ }
+
+ val_array = kzalloc(sizeof(uint32_t) * tbl_size, GFP_KERNEL);
+ if (!val_array) {
+ pr_err("%s failed %d\n", __func__, __LINE__);
+ rc = -ENOMEM;
+ goto ERROR1;
+ }
+
+ rc = of_property_read_u32_array(of_node, "qcom,gpio-tbl-flags",
+ val_array, tbl_size);
+ if (rc < 0) {
+ pr_err("%s failed %d\n", __func__, __LINE__);
+ goto ERROR2;
+ }
+ for (i = 0; i < tbl_size; i++) {
+ gpio_tbl[i].flags = val_array[i];
+ CDBG("%s gpio_tbl[%d].flags = %ld\n", __func__, i,
+ gpio_tbl[i].flags);
+ }
+
+ for (i = 0; i < tbl_size; i++) {
+ rc = of_property_read_string_index(of_node,
+ "qcom,gpio-tbl-label", i, &gpio_tbl[i].label);
+ CDBG("%s gpio_tbl[%d].label = %s\n", __func__, i,
+ gpio_tbl[i].label);
+ if (rc < 0) {
+ pr_err("%s failed %d\n", __func__, __LINE__);
+ goto ERROR2;
+ }
+ }
+
+ kfree(val_array);
+ return rc;
+
+ERROR2:
+ kfree(val_array);
+ERROR1:
+ kfree(cci_dev->cci_gpio_tbl);
+ cci_dev->cci_gpio_tbl = NULL;
+ cci_dev->cci_gpio_tbl_size = 0;
+ return rc;
+}
+
+static void msm_cci_init_default_clk_params(struct cci_device *cci_dev,
+ uint8_t index)
+{
+ /* default clock params are for 100Khz */
+ cci_dev->cci_clk_params[index].hw_thigh = 78;
+ cci_dev->cci_clk_params[index].hw_tlow = 114;
+ cci_dev->cci_clk_params[index].hw_tsu_sto = 28;
+ cci_dev->cci_clk_params[index].hw_tsu_sta = 28;
+ cci_dev->cci_clk_params[index].hw_thd_dat = 10;
+ cci_dev->cci_clk_params[index].hw_thd_sta = 77;
+ cci_dev->cci_clk_params[index].hw_tbuf = 118;
+ cci_dev->cci_clk_params[index].hw_scl_stretch_en = 0;
+ cci_dev->cci_clk_params[index].hw_trdhld = 6;
+ cci_dev->cci_clk_params[index].hw_tsp = 1;
+}
+
+static void msm_cci_init_clk_params(struct cci_device *cci_dev)
+{
+ int32_t rc = 0;
+ uint32_t val = 0;
+ uint8_t count = 0;
+ struct device_node *of_node = cci_dev->pdev->dev.of_node;
+ struct device_node *src_node = NULL;
+
+ for (count = 0; count < I2C_MAX_MODES; count++) {
+
+ if (I2C_STANDARD_MODE == count)
+ src_node = of_find_node_by_name(of_node,
+ "qcom,i2c_standard_mode");
+ else if (I2C_FAST_MODE == count)
+ src_node = of_find_node_by_name(of_node,
+ "qcom,i2c_fast_mode");
+ else
+ src_node = of_find_node_by_name(of_node,
+ "qcom,i2c_custom_mode");
+
+ rc = of_property_read_u32(src_node, "qcom,hw-thigh", &val);
+ CDBG("%s qcom,hw-thigh %d, rc %d\n", __func__, val, rc);
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_thigh = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-tlow",
+ &val);
+ CDBG("%s qcom,hw-tlow %d, rc %d\n", __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_tlow = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-tsu-sto",
+ &val);
+ CDBG("%s qcom,hw-tsu-sto %d, rc %d\n",
+ __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_tsu_sto = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-tsu-sta",
+ &val);
+ CDBG("%s qcom,hw-tsu-sta %d, rc %d\n",
+ __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_tsu_sta = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-thd-dat",
+ &val);
+ CDBG("%s qcom,hw-thd-dat %d, rc %d\n",
+ __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_thd_dat = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-thd-sta",
+ &val);
+ CDBG("%s qcom,hw-thd-sta %d, rc %d\n", __func__,
+ val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_thd_sta = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-tbuf",
+ &val);
+ CDBG("%s qcom,hw-tbuf %d, rc %d\n", __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_tbuf = val;
+ rc = of_property_read_u32(src_node,
+ "qcom,hw-scl-stretch-en", &val);
+ CDBG("%s qcom,hw-scl-stretch-en %d, rc %d\n",
+ __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_scl_stretch_en = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-trdhld",
+ &val);
+ CDBG("%s qcom,hw-trdhld %d, rc %d\n",
+ __func__, val, rc);
+ }
+ if (!rc) {
+ cci_dev->cci_clk_params[count].hw_trdhld = val;
+ rc = of_property_read_u32(src_node, "qcom,hw-tsp",
+ &val);
+ CDBG("%s qcom,hw-tsp %d, rc %d\n", __func__, val, rc);
+ }
+ if (!rc)
+ cci_dev->cci_clk_params[count].hw_tsp = val;
+ else
+ msm_cci_init_default_clk_params(cci_dev, count);
+ of_node_put(src_node);
+ src_node = NULL;
+ }
+ return;
+}
+
+struct v4l2_subdev *msm_cci_get_subdev(void)
+{
+ return g_cci_subdev;
+}
+
+static int msm_cci_get_clk_info(struct cci_device *cci_dev,
+ struct platform_device *pdev)
+{
+ uint32_t count;
+ int i, rc;
+ uint32_t rates[CCI_NUM_CLK_MAX];
+
+ struct device_node *of_node;
+ of_node = pdev->dev.of_node;
+
+ count = of_property_count_strings(of_node, "clock-names");
+ cci_dev->num_clk = count;
+
+ CDBG("%s: count = %d\n", __func__, count);
+ if (count == 0) {
+ pr_err("%s: no clocks found in device tree, count=%d",
+ __func__, count);
+ return 0;
+ }
+
+ if (count > CCI_NUM_CLK_MAX) {
+ pr_err("%s: invalid count=%d, max is %d\n", __func__,
+ count, CCI_NUM_CLK_MAX);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < count; i++) {
+ rc = of_property_read_string_index(of_node, "clock-names",
+ i, &(cci_clk_info[i].clk_name));
+ CDBG("%s: clock-names[%d] = %s\n", __func__,
+ i, cci_clk_info[i].clk_name);
+ if (rc < 0) {
+ pr_err("%s:%d, failed\n", __func__, __LINE__);
+ return rc;
+ }
+ }
+ rc = of_property_read_u32_array(of_node, "qcom,clock-rates",
+ rates, count);
+ if (rc < 0) {
+ pr_err("%s:%d, failed", __func__, __LINE__);
+ return rc;
+ }
+ for (i = 0; i < count; i++) {
+ cci_clk_info[i].clk_rate = (rates[i] == 0) ?
+ (long)-1 : rates[i];
+ CDBG("%s: clk_rate[%d] = %ld\n", __func__, i,
+ cci_clk_info[i].clk_rate);
+ }
+ return 0;
+}
+
+static uint32_t msm_get_cycles_per_ms(void)
+{
+ int i = 0;
+ for (i = 0; i < CCI_NUM_CLK_MAX; i++) {
+ if (!strcmp(cci_clk_info[i].clk_name, "cci_src_clk")) {
+ CDBG("%s:%d i %d cci_src_clk\n",
+ __func__, __LINE__, i);
+ return ((cci_clk_info[i].clk_rate/1000)*256)/1000;
+ }
+ }
+ pr_err("%s:%d, failed: Can use default: %d",
+ __func__, __LINE__, CYCLES_PER_MICRO_SEC_DEFAULT);
+ return CYCLES_PER_MICRO_SEC_DEFAULT;
+}
+
+static int msm_cci_probe(struct platform_device *pdev)
+{
+ struct cci_device *new_cci_dev;
+ int rc = 0;
+ CDBG("%s: pdev %p device id = %d\n", __func__, pdev, pdev->id);
+ new_cci_dev = kzalloc(sizeof(struct cci_device), GFP_KERNEL);
+ if (!new_cci_dev) {
+ CDBG("%s: no enough memory\n", __func__);
+ return -ENOMEM;
+ }
+ v4l2_subdev_init(&new_cci_dev->msm_sd.sd, &msm_cci_subdev_ops);
+ new_cci_dev->msm_sd.sd.internal_ops = &msm_cci_internal_ops;
+ snprintf(new_cci_dev->msm_sd.sd.name,
+ ARRAY_SIZE(new_cci_dev->msm_sd.sd.name), "msm_cci");
+ v4l2_set_subdevdata(&new_cci_dev->msm_sd.sd, new_cci_dev);
+ platform_set_drvdata(pdev, &new_cci_dev->msm_sd.sd);
+ CDBG("%s sd %p\n", __func__, &new_cci_dev->msm_sd.sd);
+ if (pdev->dev.of_node)
+ of_property_read_u32((&pdev->dev)->of_node,
+ "cell-index", &pdev->id);
+
+ new_cci_dev->reg_ptr = NULL;
+ rc = msm_cci_get_clk_info(new_cci_dev, pdev);
+ if (rc < 0) {
+ pr_err("%s: msm_cci_get_clk_info() failed", __func__);
+ return -EFAULT;
+ }
+
+ new_cci_dev->cycles_per_us = msm_get_cycles_per_ms();
+ new_cci_dev->ref_count = 0;
+ new_cci_dev->mem = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM, "cci");
+ if (!new_cci_dev->mem) {
+ CDBG("%s: no mem resource?\n", __func__);
+ rc = -ENODEV;
+ goto cci_no_resource;
+ }
+ new_cci_dev->irq = platform_get_resource_byname(pdev,
+ IORESOURCE_IRQ, "cci");
+ CDBG("%s line %d cci irq start %d end %d\n", __func__,
+ __LINE__,
+ (int) new_cci_dev->irq->start,
+ (int) new_cci_dev->irq->end);
+ if (!new_cci_dev->irq) {
+ CDBG("%s: no irq resource?\n", __func__);
+ rc = -ENODEV;
+ goto cci_no_resource;
+ }
+ new_cci_dev->io = request_mem_region(new_cci_dev->mem->start,
+ resource_size(new_cci_dev->mem), pdev->name);
+ if (!new_cci_dev->io) {
+ CDBG("%s: no valid mem region\n", __func__);
+ rc = -EBUSY;
+ goto cci_no_resource;
+ }
+
+ new_cci_dev->base = ioremap(new_cci_dev->mem->start,
+ resource_size(new_cci_dev->mem));
+ if (!new_cci_dev->base) {
+ rc = -ENOMEM;
+ goto cci_release_mem;
+ }
+ rc = request_irq(new_cci_dev->irq->start, msm_cci_irq,
+ IRQF_TRIGGER_RISING, "cci", new_cci_dev);
+ if (rc < 0) {
+ CDBG("%s: irq request fail\n", __func__);
+ rc = -EBUSY;
+ goto cci_release_mem;
+ }
+ disable_irq(new_cci_dev->irq->start);
+// new_cci_dev->msm_sd.close_seq = MSM_SD_CLOSE_2ND_CATEGORY | 0x6;
+ rc = msm_probe(pdev, &new_cci_dev->msm_v4l2_dev);
+ if (rc < 0) {
+ CDBG("%s: msm_probe fail\n", __func__);
+ goto cci_release_mem;
+ }
+ msm_sd_register(&new_cci_dev->msm_sd, &new_cci_dev->msm_v4l2_dev);
+ new_cci_dev->pdev = pdev;
+ msm_cci_init_cci_params(new_cci_dev);
+ msm_cci_init_clk_params(new_cci_dev);
+ msm_cci_init_gpio_params(new_cci_dev);
+ rc = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
+ if (rc)
+ pr_err("%s: failed to add child nodes, rc=%d\n", __func__, rc);
+ new_cci_dev->cci_state = CCI_STATE_DISABLED;
+ g_cci_subdev = &new_cci_dev->msm_sd.sd;
+ CDBG("%s cci subdev %p\n", __func__, &new_cci_dev->msm_sd.sd);
+ CDBG("%s line %d\n", __func__, __LINE__);
+ return 0;
+
+cci_release_mem:
+ release_mem_region(new_cci_dev->mem->start,
+ resource_size(new_cci_dev->mem));
+cci_no_resource:
+ kfree(new_cci_dev);
+ return 0;
+}
+
+static int msm_cci_exit(struct platform_device *pdev)
+{
+ struct v4l2_subdev *subdev = platform_get_drvdata(pdev);
+ struct cci_device *cci_dev =
+ v4l2_get_subdevdata(subdev);
+ release_mem_region(cci_dev->mem->start, resource_size(cci_dev->mem));
+ kfree(cci_dev);
+ return 0;
+}
+
+static const struct of_device_id msm_cci_dt_match[] = {
+ {.compatible = "qcom,cci"},
+ {}
+};
+
+MODULE_DEVICE_TABLE(of, msm_cci_dt_match);
+
+static struct platform_driver cci_driver = {
+ .probe = msm_cci_probe,
+ .remove = msm_cci_exit,
+ .driver = {
+ .name = MSM_CCI_DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = msm_cci_dt_match,
+ },
+};
+
+static int __init msm_cci_init_module(void)
+{
+ return platform_driver_register(&cci_driver);
+}
+
+static void __exit msm_cci_exit_module(void)
+{
+ platform_driver_unregister(&cci_driver);
+}
+
+module_init(msm_cci_init_module);
+module_exit(msm_cci_exit_module);
+MODULE_DESCRIPTION("MSM CCI driver");
+MODULE_LICENSE("GPL v2");
projects / karo-tx-linux.git / commitdiff