diff options
Diffstat (limited to 'drivers/mxc/ipu3/ipu_capture.c')
| -rw-r--r-- | drivers/mxc/ipu3/ipu_capture.c | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/drivers/mxc/ipu3/ipu_capture.c b/drivers/mxc/ipu3/ipu_capture.c new file mode 100644 index 000000000000..700b32b7e883 --- /dev/null +++ b/drivers/mxc/ipu3/ipu_capture.c @@ -0,0 +1,851 @@ +/* + * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file ipu_capture.c + * + * @brief IPU capture dase functions + * + * @ingroup IPU + */ +#include <linux/types.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/errno.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/ipu.h> +#include <linux/clk.h> +#include <mach/mxc_dvfs.h> + +#include "ipu_prv.h" +#include "ipu_regs.h" + +/*! + * ipu_csi_init_interface + * Sets initial values for the CSI registers. + * The width and height of the sensor and the actual frame size will be + * set to the same values. + * @param width Sensor width + * @param height Sensor height + * @param pixel_fmt pixel format + * @param cfg_param ipu_csi_signal_cfg_t structure + * @param csi csi 0 or csi 1 + * + * @return 0 for success, -EINVAL for error + */ +int32_t +ipu_csi_init_interface(uint16_t width, uint16_t height, uint32_t pixel_fmt, + ipu_csi_signal_cfg_t cfg_param) +{ + uint32_t data = 0; + uint32_t csi = cfg_param.csi; + unsigned long lock_flags; + + /* Set SENS_DATA_FORMAT bits (8, 9 and 10) + RGB or YUV444 is 0 which is current value in data so not set + explicitly + This is also the default value if attempts are made to set it to + something invalid. */ + switch (pixel_fmt) { + case IPU_PIX_FMT_YUYV: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_YUV422_YUYV; + break; + case IPU_PIX_FMT_UYVY: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_YUV422_UYVY; + break; + case IPU_PIX_FMT_RGB24: + case IPU_PIX_FMT_BGR24: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_RGB_YUV444; + break; + case IPU_PIX_FMT_GENERIC: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_BAYER; + break; + case IPU_PIX_FMT_RGB565: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_RGB565; + break; + case IPU_PIX_FMT_RGB555: + cfg_param.data_fmt = CSI_SENS_CONF_DATA_FMT_RGB555; + break; + default: + return -EINVAL; + } + + /* Set the CSI_SENS_CONF register remaining fields */ + data |= cfg_param.data_width << CSI_SENS_CONF_DATA_WIDTH_SHIFT | + cfg_param.data_fmt << CSI_SENS_CONF_DATA_FMT_SHIFT | + cfg_param.data_pol << CSI_SENS_CONF_DATA_POL_SHIFT | + cfg_param.Vsync_pol << CSI_SENS_CONF_VSYNC_POL_SHIFT | + cfg_param.Hsync_pol << CSI_SENS_CONF_HSYNC_POL_SHIFT | + cfg_param.pixclk_pol << CSI_SENS_CONF_PIX_CLK_POL_SHIFT | + cfg_param.ext_vsync << CSI_SENS_CONF_EXT_VSYNC_SHIFT | + cfg_param.clk_mode << CSI_SENS_CONF_SENS_PRTCL_SHIFT | + cfg_param.pack_tight << CSI_SENS_CONF_PACK_TIGHT_SHIFT | + cfg_param.force_eof << CSI_SENS_CONF_FORCE_EOF_SHIFT | + cfg_param.data_en_pol << CSI_SENS_CONF_DATA_EN_POL_SHIFT; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + __raw_writel(data, CSI_SENS_CONF(csi)); + + /* Setup sensor frame size */ + __raw_writel((width - 1) | (height - 1) << 16, CSI_SENS_FRM_SIZE(csi)); + + /* Set CCIR registers */ + if (cfg_param.clk_mode == IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE) { + __raw_writel(0x40030, CSI_CCIR_CODE_1(csi)); + __raw_writel(0xFF0000, CSI_CCIR_CODE_3(csi)); + } else if (cfg_param.clk_mode == IPU_CSI_CLK_MODE_CCIR656_INTERLACED) { + if (width == 720 && height == 625) { + /* PAL case */ + /* + * Field0BlankEnd = 0x6, Field0BlankStart = 0x2, + * Field0ActiveEnd = 0x4, Field0ActiveStart = 0 + */ + __raw_writel(0x40596, CSI_CCIR_CODE_1(csi)); + /* + * Field1BlankEnd = 0x7, Field1BlankStart = 0x3, + * Field1ActiveEnd = 0x5, Field1ActiveStart = 0x1 + */ + __raw_writel(0xD07DF, CSI_CCIR_CODE_2(csi)); + __raw_writel(0xFF0000, CSI_CCIR_CODE_3(csi)); + } else if (width == 720 && height == 525) { + /* NTSC case */ + /* + * Field0BlankEnd = 0x7, Field0BlankStart = 0x3, + * Field0ActiveEnd = 0x5, Field0ActiveStart = 0x1 + */ + __raw_writel(0xD07DF, CSI_CCIR_CODE_1(csi)); + /* + * Field1BlankEnd = 0x6, Field1BlankStart = 0x2, + * Field1ActiveEnd = 0x4, Field1ActiveStart = 0 + */ + __raw_writel(0x40596, CSI_CCIR_CODE_2(csi)); + __raw_writel(0xFF0000, CSI_CCIR_CODE_3(csi)); + } else { + spin_unlock_irqrestore(&ipu_lock, lock_flags); + dev_err(g_ipu_dev, "Unsupported CCIR656 interlaced " + "video mode\n"); + return -EINVAL; + } + _ipu_csi_ccir_err_detection_enable(csi); + } else if ((cfg_param.clk_mode == + IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR) || + (cfg_param.clk_mode == + IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR) || + (cfg_param.clk_mode == + IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR) || + (cfg_param.clk_mode == + IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR)) { + __raw_writel(0x40030, CSI_CCIR_CODE_1(csi)); + __raw_writel(0xFF0000, CSI_CCIR_CODE_3(csi)); + _ipu_csi_ccir_err_detection_enable(csi); + } else if ((cfg_param.clk_mode == IPU_CSI_CLK_MODE_GATED_CLK) || + (cfg_param.clk_mode == IPU_CSI_CLK_MODE_NONGATED_CLK)) { + _ipu_csi_ccir_err_detection_disable(csi); + } + + dev_dbg(g_ipu_dev, "CSI_SENS_CONF = 0x%08X\n", + __raw_readl(CSI_SENS_CONF(csi))); + dev_dbg(g_ipu_dev, "CSI_ACT_FRM_SIZE = 0x%08X\n", + __raw_readl(CSI_ACT_FRM_SIZE(csi))); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); + + return 0; +} +EXPORT_SYMBOL(ipu_csi_init_interface); + +/*! + * ipu_csi_get_sensor_protocol + * + * @param csi csi 0 or csi 1 + * + * @return Returns sensor protocol + */ +int32_t ipu_csi_get_sensor_protocol(uint32_t csi) +{ + return (__raw_readl(CSI_SENS_CONF(csi)) & + CSI_SENS_CONF_SENS_PRTCL_MASK) >> + CSI_SENS_CONF_SENS_PRTCL_SHIFT; +} +EXPORT_SYMBOL(ipu_csi_get_sensor_protocol); + +/*! + * _ipu_csi_mclk_set + * + * @param pixel_clk desired pixel clock frequency in Hz + * @param csi csi 0 or csi 1 + * + * @return Returns 0 on success or negative error code on fail + */ +int _ipu_csi_mclk_set(uint32_t pixel_clk, uint32_t csi) +{ + uint32_t temp; + uint32_t div_ratio; + + div_ratio = (clk_get_rate(g_ipu_clk) / pixel_clk) - 1; + + if (div_ratio > 0xFF || div_ratio < 0) { + dev_dbg(g_ipu_dev, "The value of pixel_clk extends normal range\n"); + return -EINVAL; + } + + temp = __raw_readl(CSI_SENS_CONF(csi)); + temp &= ~CSI_SENS_CONF_DIVRATIO_MASK; + __raw_writel(temp | (div_ratio << CSI_SENS_CONF_DIVRATIO_SHIFT), + CSI_SENS_CONF(csi)); + + return 0; +} + +/*! + * ipu_csi_enable_mclk + * + * @param csi csi 0 or csi 1 + * @param flag true to enable mclk, false to disable mclk + * @param wait true to wait 100ms make clock stable, false not wait + * + * @return Returns 0 on success + */ +int ipu_csi_enable_mclk(int csi, bool flag, bool wait) +{ + if (flag) { + clk_enable(g_csi_clk[csi]); + if (wait == true) + msleep(10); + } else { + clk_disable(g_csi_clk[csi]); + } + + return 0; +} +EXPORT_SYMBOL(ipu_csi_enable_mclk); + +/*! + * ipu_csi_get_window_size + * + * @param width pointer to window width + * @param height pointer to window height + * @param csi csi 0 or csi 1 + */ +void ipu_csi_get_window_size(uint32_t *width, uint32_t *height, uint32_t csi) +{ + uint32_t reg; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + reg = __raw_readl(CSI_ACT_FRM_SIZE(csi)); + *width = (reg & 0xFFFF) + 1; + *height = (reg >> 16 & 0xFFFF) + 1; + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} +EXPORT_SYMBOL(ipu_csi_get_window_size); + +/*! + * ipu_csi_set_window_size + * + * @param width window width + * @param height window height + * @param csi csi 0 or csi 1 + */ +void ipu_csi_set_window_size(uint32_t width, uint32_t height, uint32_t csi) +{ + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + __raw_writel((width - 1) | (height - 1) << 16, CSI_ACT_FRM_SIZE(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} +EXPORT_SYMBOL(ipu_csi_set_window_size); + +/*! + * ipu_csi_set_window_pos + * + * @param left uint32 window x start + * @param top uint32 window y start + * @param csi csi 0 or csi 1 + */ +void ipu_csi_set_window_pos(uint32_t left, uint32_t top, uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_OUT_FRM_CTRL(csi)); + temp &= ~(CSI_HSC_MASK | CSI_VSC_MASK); + temp |= ((top << CSI_VSC_SHIFT) | (left << CSI_HSC_SHIFT)); + __raw_writel(temp, CSI_OUT_FRM_CTRL(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} +EXPORT_SYMBOL(ipu_csi_set_window_pos); + +/*! + * _ipu_csi_horizontal_downsize_enable + * Enable horizontal downsizing(decimation) by 2. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_horizontal_downsize_enable(uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_OUT_FRM_CTRL(csi)); + temp |= CSI_HORI_DOWNSIZE_EN; + __raw_writel(temp, CSI_OUT_FRM_CTRL(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * _ipu_csi_horizontal_downsize_disable + * Disable horizontal downsizing(decimation) by 2. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_horizontal_downsize_disable(uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_OUT_FRM_CTRL(csi)); + temp &= ~CSI_HORI_DOWNSIZE_EN; + __raw_writel(temp, CSI_OUT_FRM_CTRL(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * _ipu_csi_vertical_downsize_enable + * Enable vertical downsizing(decimation) by 2. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_vertical_downsize_enable(uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_OUT_FRM_CTRL(csi)); + temp |= CSI_VERT_DOWNSIZE_EN; + __raw_writel(temp, CSI_OUT_FRM_CTRL(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * _ipu_csi_vertical_downsize_disable + * Disable vertical downsizing(decimation) by 2. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_vertical_downsize_disable(uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_OUT_FRM_CTRL(csi)); + temp &= ~CSI_VERT_DOWNSIZE_EN; + __raw_writel(temp, CSI_OUT_FRM_CTRL(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * ipu_csi_set_test_generator + * + * @param active 1 for active and 0 for inactive + * @param r_value red value for the generated pattern of even pixel + * @param g_value green value for the generated pattern of even + * pixel + * @param b_value blue value for the generated pattern of even pixel + * @param pixel_clk desired pixel clock frequency in Hz + * @param csi csi 0 or csi 1 + */ +void ipu_csi_set_test_generator(bool active, uint32_t r_value, + uint32_t g_value, uint32_t b_value, uint32_t pix_clk, uint32_t csi) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_TST_CTRL(csi)); + + if (active == false) { + temp &= ~CSI_TEST_GEN_MODE_EN; + __raw_writel(temp, CSI_TST_CTRL(csi)); + } else { + /* Set sensb_mclk div_ratio*/ + _ipu_csi_mclk_set(pix_clk, csi); + + temp &= ~(CSI_TEST_GEN_R_MASK | CSI_TEST_GEN_G_MASK | + CSI_TEST_GEN_B_MASK); + temp |= CSI_TEST_GEN_MODE_EN; + temp |= (r_value << CSI_TEST_GEN_R_SHIFT) | + (g_value << CSI_TEST_GEN_G_SHIFT) | + (b_value << CSI_TEST_GEN_B_SHIFT); + __raw_writel(temp, CSI_TST_CTRL(csi)); + } + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} +EXPORT_SYMBOL(ipu_csi_set_test_generator); + +/*! + * _ipu_csi_ccir_err_detection_en + * Enable error detection and correction for + * CCIR interlaced mode with protection bit. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_ccir_err_detection_enable(uint32_t csi) +{ + uint32_t temp; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + temp = __raw_readl(CSI_CCIR_CODE_1(csi)); + temp |= CSI_CCIR_ERR_DET_EN; + __raw_writel(temp, CSI_CCIR_CODE_1(csi)); +} + +/*! + * _ipu_csi_ccir_err_detection_disable + * Disable error detection and correction for + * CCIR interlaced mode with protection bit. + * + * @param csi csi 0 or csi 1 + */ +void _ipu_csi_ccir_err_detection_disable(uint32_t csi) +{ + uint32_t temp; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + temp = __raw_readl(CSI_CCIR_CODE_1(csi)); + temp &= ~CSI_CCIR_ERR_DET_EN; + __raw_writel(temp, CSI_CCIR_CODE_1(csi)); +} + +/*! + * _ipu_csi_set_mipi_di + * + * @param num MIPI data identifier 0-3 handled by CSI + * @param di_val data identifier value + * @param csi csi 0 or csi 1 + * + * @return Returns 0 on success or negative error code on fail + */ +int _ipu_csi_set_mipi_di(uint32_t num, uint32_t di_val, uint32_t csi) +{ + uint32_t temp; + int retval = 0; + unsigned long lock_flags; + + if (di_val > 0xFFL) { + retval = -EINVAL; + goto err; + } + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_MIPI_DI(csi)); + + switch (num) { + case IPU_CSI_MIPI_DI0: + temp &= ~CSI_MIPI_DI0_MASK; + temp |= (di_val << CSI_MIPI_DI0_SHIFT); + __raw_writel(temp, CSI_MIPI_DI(csi)); + break; + case IPU_CSI_MIPI_DI1: + temp &= ~CSI_MIPI_DI1_MASK; + temp |= (di_val << CSI_MIPI_DI1_SHIFT); + __raw_writel(temp, CSI_MIPI_DI(csi)); + break; + case IPU_CSI_MIPI_DI2: + temp &= ~CSI_MIPI_DI2_MASK; + temp |= (di_val << CSI_MIPI_DI2_SHIFT); + __raw_writel(temp, CSI_MIPI_DI(csi)); + break; + case IPU_CSI_MIPI_DI3: + temp &= ~CSI_MIPI_DI3_MASK; + temp |= (di_val << CSI_MIPI_DI3_SHIFT); + __raw_writel(temp, CSI_MIPI_DI(csi)); + break; + default: + retval = -EINVAL; + goto err; + } + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +err: + return retval; +} + +/*! + * _ipu_csi_set_skip_isp + * + * @param skip select frames to be skipped and set the + * correspond bits to 1 + * @param max_ratio number of frames in a skipping set and the + * maximum value of max_ratio is 5 + * @param csi csi 0 or csi 1 + * + * @return Returns 0 on success or negative error code on fail + */ +int _ipu_csi_set_skip_isp(uint32_t skip, uint32_t max_ratio, uint32_t csi) +{ + uint32_t temp; + int retval = 0; + unsigned long lock_flags; + + if (max_ratio > 5) { + retval = -EINVAL; + goto err; + } + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_SKIP(csi)); + temp &= ~(CSI_MAX_RATIO_SKIP_ISP_MASK | CSI_SKIP_ISP_MASK); + temp |= (max_ratio << CSI_MAX_RATIO_SKIP_ISP_SHIFT) | + (skip << CSI_SKIP_ISP_SHIFT); + __raw_writel(temp, CSI_SKIP(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +err: + return retval; +} + +/*! + * _ipu_csi_set_skip_smfc + * + * @param skip select frames to be skipped and set the + * correspond bits to 1 + * @param max_ratio number of frames in a skipping set and the + * maximum value of max_ratio is 5 + * @param id csi to smfc skipping id + * @param csi csi 0 or csi 1 + * + * @return Returns 0 on success or negative error code on fail + */ +int _ipu_csi_set_skip_smfc(uint32_t skip, uint32_t max_ratio, + uint32_t id, uint32_t csi) +{ + uint32_t temp; + int retval = 0; + unsigned long lock_flags; + + if (max_ratio > 5 || id > 3) { + retval = -EINVAL; + goto err; + } + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(CSI_SKIP(csi)); + temp &= ~(CSI_MAX_RATIO_SKIP_SMFC_MASK | CSI_ID_2_SKIP_MASK | + CSI_SKIP_SMFC_MASK); + temp |= (max_ratio << CSI_MAX_RATIO_SKIP_SMFC_SHIFT) | + (id << CSI_ID_2_SKIP_SHIFT) | + (skip << CSI_SKIP_SMFC_SHIFT); + __raw_writel(temp, CSI_SKIP(csi)); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +err: + return retval; +} + +/*! + * _ipu_smfc_init + * Map CSI frames to IDMAC channels. + * + * @param channel IDMAC channel 0-3 + * @param mipi_id mipi id number 0-3 + * @param csi csi0 or csi1 + */ +void _ipu_smfc_init(ipu_channel_t channel, uint32_t mipi_id, uint32_t csi) +{ + uint32_t temp; + + temp = __raw_readl(SMFC_MAP); + + switch (channel) { + case CSI_MEM0: + temp &= ~SMFC_MAP_CH0_MASK; + temp |= ((csi << 2) | mipi_id) << SMFC_MAP_CH0_SHIFT; + break; + case CSI_MEM1: + temp &= ~SMFC_MAP_CH1_MASK; + temp |= ((csi << 2) | mipi_id) << SMFC_MAP_CH1_SHIFT; + break; + case CSI_MEM2: + temp &= ~SMFC_MAP_CH2_MASK; + temp |= ((csi << 2) | mipi_id) << SMFC_MAP_CH2_SHIFT; + break; + case CSI_MEM3: + temp &= ~SMFC_MAP_CH3_MASK; + temp |= ((csi << 2) | mipi_id) << SMFC_MAP_CH3_SHIFT; + break; + default: + return; + } + + __raw_writel(temp, SMFC_MAP); +} + +/*! + * _ipu_smfc_set_wmc + * Caution: The number of required channels, the enabled channels + * and the FIFO size per channel are configured restrictedly. + * + * @param channel IDMAC channel 0-3 + * @param set set 1 or clear 0 + * @param level water mark level when FIFO is on the + * relative size + */ +void _ipu_smfc_set_wmc(ipu_channel_t channel, bool set, uint32_t level) +{ + uint32_t temp; + unsigned long lock_flags; + + if (g_ipu_clk_enabled == false) { + stop_dvfs_per(); + g_ipu_clk_enabled = true; + clk_enable(g_ipu_clk); + } + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(SMFC_WMC); + + switch (channel) { + case CSI_MEM0: + if (set == true) { + temp &= ~SMFC_WM0_SET_MASK; + temp |= level << SMFC_WM0_SET_SHIFT; + } else { + temp &= ~SMFC_WM0_CLR_MASK; + temp |= level << SMFC_WM0_CLR_SHIFT; + } + break; + case CSI_MEM1: + if (set == true) { + temp &= ~SMFC_WM1_SET_MASK; + temp |= level << SMFC_WM1_SET_SHIFT; + } else { + temp &= ~SMFC_WM1_CLR_MASK; + temp |= level << SMFC_WM1_CLR_SHIFT; + } + break; + case CSI_MEM2: + if (set == true) { + temp &= ~SMFC_WM2_SET_MASK; + temp |= level << SMFC_WM2_SET_SHIFT; + } else { + temp &= ~SMFC_WM2_CLR_MASK; + temp |= level << SMFC_WM2_CLR_SHIFT; + } + break; + case CSI_MEM3: + if (set == true) { + temp &= ~SMFC_WM3_SET_MASK; + temp |= level << SMFC_WM3_SET_SHIFT; + } else { + temp &= ~SMFC_WM3_CLR_MASK; + temp |= level << SMFC_WM3_CLR_SHIFT; + } + break; + default: + return; + } + + __raw_writel(temp, SMFC_WMC); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * _ipu_smfc_set_burst_size + * + * @param channel IDMAC channel 0-3 + * @param bs burst size of IDMAC channel, + * the value programmed here shoud be BURST_SIZE-1 + */ +void _ipu_smfc_set_burst_size(ipu_channel_t channel, uint32_t bs) +{ + uint32_t temp; + unsigned long lock_flags; + + spin_lock_irqsave(&ipu_lock, lock_flags); + + temp = __raw_readl(SMFC_BS); + + switch (channel) { + case CSI_MEM0: + temp &= ~SMFC_BS0_MASK; + temp |= bs << SMFC_BS0_SHIFT; + break; + case CSI_MEM1: + temp &= ~SMFC_BS1_MASK; + temp |= bs << SMFC_BS1_SHIFT; + break; + case CSI_MEM2: + temp &= ~SMFC_BS2_MASK; + temp |= bs << SMFC_BS2_SHIFT; + break; + case CSI_MEM3: + temp &= ~SMFC_BS3_MASK; + temp |= bs << SMFC_BS3_SHIFT; + break; + default: + return; + } + + __raw_writel(temp, SMFC_BS); + + spin_unlock_irqrestore(&ipu_lock, lock_flags); +} + +/*! + * _ipu_csi_init + * + * @param channel IDMAC channel + * @param csi csi 0 or csi 1 + * + * @return Returns 0 on success or negative error code on fail + */ +int _ipu_csi_init(ipu_channel_t channel, uint32_t csi) +{ + uint32_t csi_sens_conf, csi_dest; + int retval = 0; + + switch (channel) { + case CSI_MEM0: + case CSI_MEM1: + case CSI_MEM2: + case CSI_MEM3: + csi_dest = CSI_DATA_DEST_IDMAC; + break; + case CSI_PRP_ENC_MEM: + case CSI_PRP_VF_MEM: + csi_dest = CSI_DATA_DEST_IC; + break; + default: + retval = -EINVAL; + goto err; + } + + csi_sens_conf = __raw_readl(CSI_SENS_CONF(csi)); + csi_sens_conf &= ~CSI_SENS_CONF_DATA_DEST_MASK; + __raw_writel(csi_sens_conf | (csi_dest << + CSI_SENS_CONF_DATA_DEST_SHIFT), CSI_SENS_CONF(csi)); +err: + return retval; +} |