+++ /dev/null
-/*
- * Copyright (c) 2008-2009 QUALCOMM Incorporated
- */
-
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <mach/gpio.h>
-#include <mach/board.h>
-#include <mach/camera.h>
-
-#define CAMIF_CFG_RMSK 0x1fffff
-#define CAM_SEL_BMSK 0x2
-#define CAM_PCLK_SRC_SEL_BMSK 0x60000
-#define CAM_PCLK_INVERT_BMSK 0x80000
-#define CAM_PAD_REG_SW_RESET_BMSK 0x100000
-
-#define EXT_CAM_HSYNC_POL_SEL_BMSK 0x10000
-#define EXT_CAM_VSYNC_POL_SEL_BMSK 0x8000
-#define MDDI_CLK_CHICKEN_BIT_BMSK 0x80
-
-#define CAM_SEL_SHFT 0x1
-#define CAM_PCLK_SRC_SEL_SHFT 0x11
-#define CAM_PCLK_INVERT_SHFT 0x13
-#define CAM_PAD_REG_SW_RESET_SHFT 0x14
-
-#define EXT_CAM_HSYNC_POL_SEL_SHFT 0x10
-#define EXT_CAM_VSYNC_POL_SEL_SHFT 0xF
-#define MDDI_CLK_CHICKEN_BIT_SHFT 0x7
-#define APPS_RESET_OFFSET 0x00000210
-
-static struct clk *camio_vfe_mdc_clk;
-static struct clk *camio_mdc_clk;
-static struct clk *camio_vfe_clk;
-
-static struct msm_camera_io_ext camio_ext;
-static struct resource *appio, *mdcio;
-void __iomem *appbase, *mdcbase;
-
-static struct msm_camera_io_ext camio_ext;
-static struct resource *appio, *mdcio;
-void __iomem *appbase, *mdcbase;
-
-extern int clk_set_flags(struct clk *clk, unsigned long flags);
-
-int msm_camio_clk_enable(enum msm_camio_clk_type clktype)
-{
- int rc = -1;
- struct clk *clk = NULL;
-
- switch (clktype) {
- case CAMIO_VFE_MDC_CLK:
- clk = camio_vfe_mdc_clk = clk_get(NULL, "vfe_mdc_clk");
- break;
-
- case CAMIO_MDC_CLK:
- clk = camio_mdc_clk = clk_get(NULL, "mdc_clk");
- break;
-
- case CAMIO_VFE_CLK:
- clk = camio_vfe_clk = clk_get(NULL, "vfe_clk");
- break;
-
- default:
- break;
- }
-
- if (!IS_ERR(clk)) {
- clk_enable(clk);
- rc = 0;
- }
-
- return rc;
-}
-
-int msm_camio_clk_disable(enum msm_camio_clk_type clktype)
-{
- int rc = -1;
- struct clk *clk = NULL;
-
- switch (clktype) {
- case CAMIO_VFE_MDC_CLK:
- clk = camio_vfe_mdc_clk;
- break;
-
- case CAMIO_MDC_CLK:
- clk = camio_mdc_clk;
- break;
-
- case CAMIO_VFE_CLK:
- clk = camio_vfe_clk;
- break;
-
- default:
- break;
- }
-
- if (!IS_ERR(clk)) {
- clk_disable(clk);
- clk_put(clk);
- rc = 0;
- }
-
- return rc;
-}
-
-void msm_camio_clk_rate_set(int rate)
-{
- struct clk *clk = camio_vfe_clk;
-
- if (clk != ERR_PTR(-ENOENT))
- clk_set_rate(clk, rate);
-}
-
-int msm_camio_enable(struct platform_device *pdev)
-{
- int rc = 0;
- struct msm_camera_sensor_info *sinfo = pdev->dev.platform_data;
- struct msm_camera_device_platform_data *camdev = sinfo->pdata;
-
- camio_ext = camdev->ioext;
-
- appio = request_mem_region(camio_ext.appphy,
- camio_ext.appsz, pdev->name);
- if (!appio) {
- rc = -EBUSY;
- goto enable_fail;
- }
-
- appbase = ioremap(camio_ext.appphy,
- camio_ext.appsz);
- if (!appbase) {
- rc = -ENOMEM;
- goto apps_no_mem;
- }
-
- mdcio = request_mem_region(camio_ext.mdcphy,
- camio_ext.mdcsz, pdev->name);
- if (!mdcio) {
- rc = -EBUSY;
- goto mdc_busy;
- }
-
- mdcbase = ioremap(camio_ext.mdcphy,
- camio_ext.mdcsz);
- if (!mdcbase) {
- rc = -ENOMEM;
- goto mdc_no_mem;
- }
-
- camdev->camera_gpio_on();
-
- msm_camio_clk_enable(CAMIO_VFE_CLK);
- msm_camio_clk_enable(CAMIO_MDC_CLK);
- msm_camio_clk_enable(CAMIO_VFE_MDC_CLK);
- return 0;
-
-mdc_no_mem:
- release_mem_region(camio_ext.mdcphy, camio_ext.mdcsz);
-mdc_busy:
- iounmap(appbase);
-apps_no_mem:
- release_mem_region(camio_ext.appphy, camio_ext.appsz);
-enable_fail:
- return rc;
-}
-
-void msm_camio_disable(struct platform_device *pdev)
-{
- struct msm_camera_sensor_info *sinfo = pdev->dev.platform_data;
- struct msm_camera_device_platform_data *camdev = sinfo->pdata;
-
- iounmap(mdcbase);
- release_mem_region(camio_ext.mdcphy, camio_ext.mdcsz);
- iounmap(appbase);
- release_mem_region(camio_ext.appphy, camio_ext.appsz);
-
- camdev->camera_gpio_off();
-
- msm_camio_clk_disable(CAMIO_VFE_CLK);
- msm_camio_clk_disable(CAMIO_MDC_CLK);
- msm_camio_clk_disable(CAMIO_VFE_MDC_CLK);
-}
-
-void msm_camio_camif_pad_reg_reset(void)
-{
- uint32_t reg;
- uint32_t mask, value;
-
- /* select CLKRGM_VFE_SRC_CAM_VFE_SRC: internal source */
- msm_camio_clk_sel(MSM_CAMIO_CLK_SRC_INTERNAL);
-
- reg = (readl(mdcbase)) & CAMIF_CFG_RMSK;
-
- mask = CAM_SEL_BMSK |
- CAM_PCLK_SRC_SEL_BMSK |
- CAM_PCLK_INVERT_BMSK;
-
- value = 1 << CAM_SEL_SHFT |
- 3 << CAM_PCLK_SRC_SEL_SHFT |
- 0 << CAM_PCLK_INVERT_SHFT;
-
- writel((reg & (~mask)) | (value & mask), mdcbase);
- mdelay(10);
-
- reg = (readl(mdcbase)) & CAMIF_CFG_RMSK;
- mask = CAM_PAD_REG_SW_RESET_BMSK;
- value = 1 << CAM_PAD_REG_SW_RESET_SHFT;
- writel((reg & (~mask)) | (value & mask), mdcbase);
- mdelay(10);
-
- reg = (readl(mdcbase)) & CAMIF_CFG_RMSK;
- mask = CAM_PAD_REG_SW_RESET_BMSK;
- value = 0 << CAM_PAD_REG_SW_RESET_SHFT;
- writel((reg & (~mask)) | (value & mask), mdcbase);
- mdelay(10);
-
- msm_camio_clk_sel(MSM_CAMIO_CLK_SRC_EXTERNAL);
- mdelay(10);
-}
-
-void msm_camio_vfe_blk_reset(void)
-{
- uint32_t val;
-
- val = readl(appbase + 0x00000210);
- val |= 0x1;
- writel(val, appbase + 0x00000210);
- mdelay(10);
-
- val = readl(appbase + 0x00000210);
- val &= ~0x1;
- writel(val, appbase + 0x00000210);
- mdelay(10);
-}
-
-void msm_camio_camif_pad_reg_reset_2(void)
-{
- uint32_t reg;
- uint32_t mask, value;
-
- reg = (readl(mdcbase)) & CAMIF_CFG_RMSK;
- mask = CAM_PAD_REG_SW_RESET_BMSK;
- value = 1 << CAM_PAD_REG_SW_RESET_SHFT;
- writel((reg & (~mask)) | (value & mask), mdcbase);
- mdelay(10);
-
- reg = (readl(mdcbase)) & CAMIF_CFG_RMSK;
- mask = CAM_PAD_REG_SW_RESET_BMSK;
- value = 0 << CAM_PAD_REG_SW_RESET_SHFT;
- writel((reg & (~mask)) | (value & mask), mdcbase);
- mdelay(10);
-}
-
-void msm_camio_clk_sel(enum msm_camio_clk_src_type srctype)
-{
- struct clk *clk = NULL;
-
- clk = camio_vfe_clk;
-
- if (clk != NULL && clk != ERR_PTR(-ENOENT)) {
- switch (srctype) {
- case MSM_CAMIO_CLK_SRC_INTERNAL:
- clk_set_flags(clk, 0x00000100 << 1);
- break;
-
- case MSM_CAMIO_CLK_SRC_EXTERNAL:
- clk_set_flags(clk, 0x00000100);
- break;
-
- default:
- break;
- }
- }
-}
-
-int msm_camio_probe_on(struct platform_device *pdev)
-{
- struct msm_camera_sensor_info *sinfo = pdev->dev.platform_data;
- struct msm_camera_device_platform_data *camdev = sinfo->pdata;
- camdev->camera_gpio_on();
- return msm_camio_clk_enable(CAMIO_VFE_CLK);
-}
-
-int msm_camio_probe_off(struct platform_device *pdev)
-{
- struct msm_camera_sensor_info *sinfo = pdev->dev.platform_data;
- struct msm_camera_device_platform_data *camdev = sinfo->pdata;
- camdev->camera_gpio_off();
- return msm_camio_clk_disable(CAMIO_VFE_CLK);
-}
projects / mv-sheeva.git / blobdiff