2 * Copyright (c) 2008-2009 QUALCOMM Incorporated
5 #include <linux/delay.h>
9 #include <mach/board.h>
10 #include <mach/camera.h>
12 #define CAMIF_CFG_RMSK 0x1fffff
13 #define CAM_SEL_BMSK 0x2
14 #define CAM_PCLK_SRC_SEL_BMSK 0x60000
15 #define CAM_PCLK_INVERT_BMSK 0x80000
16 #define CAM_PAD_REG_SW_RESET_BMSK 0x100000
18 #define EXT_CAM_HSYNC_POL_SEL_BMSK 0x10000
19 #define EXT_CAM_VSYNC_POL_SEL_BMSK 0x8000
20 #define MDDI_CLK_CHICKEN_BIT_BMSK 0x80
22 #define CAM_SEL_SHFT 0x1
23 #define CAM_PCLK_SRC_SEL_SHFT 0x11
24 #define CAM_PCLK_INVERT_SHFT 0x13
25 #define CAM_PAD_REG_SW_RESET_SHFT 0x14
27 #define EXT_CAM_HSYNC_POL_SEL_SHFT 0x10
28 #define EXT_CAM_VSYNC_POL_SEL_SHFT 0xF
29 #define MDDI_CLK_CHICKEN_BIT_SHFT 0x7
30 #define APPS_RESET_OFFSET 0x00000210
32 static struct clk
*camio_vfe_mdc_clk
;
33 static struct clk
*camio_mdc_clk
;
34 static struct clk
*camio_vfe_clk
;
36 static struct msm_camera_io_ext camio_ext
;
37 static struct resource
*appio
, *mdcio
;
38 void __iomem
*appbase
, *mdcbase
;
40 static struct msm_camera_io_ext camio_ext
;
41 static struct resource
*appio
, *mdcio
;
42 void __iomem
*appbase
, *mdcbase
;
44 extern int clk_set_flags(struct clk
*clk
, unsigned long flags
);
46 int msm_camio_clk_enable(enum msm_camio_clk_type clktype
)
49 struct clk
*clk
= NULL
;
52 case CAMIO_VFE_MDC_CLK
:
53 clk
= camio_vfe_mdc_clk
= clk_get(NULL
, "vfe_mdc_clk");
57 clk
= camio_mdc_clk
= clk_get(NULL
, "mdc_clk");
61 clk
= camio_vfe_clk
= clk_get(NULL
, "vfe_clk");
76 int msm_camio_clk_disable(enum msm_camio_clk_type clktype
)
79 struct clk
*clk
= NULL
;
82 case CAMIO_VFE_MDC_CLK
:
83 clk
= camio_vfe_mdc_clk
;
107 void msm_camio_clk_rate_set(int rate
)
109 struct clk
*clk
= camio_vfe_clk
;
111 if (clk
!= ERR_PTR(-ENOENT
))
112 clk_set_rate(clk
, rate
);
115 int msm_camio_enable(struct platform_device
*pdev
)
118 struct msm_camera_sensor_info
*sinfo
= pdev
->dev
.platform_data
;
119 struct msm_camera_device_platform_data
*camdev
= sinfo
->pdata
;
121 camio_ext
= camdev
->ioext
;
123 appio
= request_mem_region(camio_ext
.appphy
,
124 camio_ext
.appsz
, pdev
->name
);
130 appbase
= ioremap(camio_ext
.appphy
,
137 mdcio
= request_mem_region(camio_ext
.mdcphy
,
138 camio_ext
.mdcsz
, pdev
->name
);
144 mdcbase
= ioremap(camio_ext
.mdcphy
,
151 camdev
->camera_gpio_on();
153 msm_camio_clk_enable(CAMIO_VFE_CLK
);
154 msm_camio_clk_enable(CAMIO_MDC_CLK
);
155 msm_camio_clk_enable(CAMIO_VFE_MDC_CLK
);
159 release_mem_region(camio_ext
.mdcphy
, camio_ext
.mdcsz
);
163 release_mem_region(camio_ext
.appphy
, camio_ext
.appsz
);
168 void msm_camio_disable(struct platform_device
*pdev
)
170 struct msm_camera_sensor_info
*sinfo
= pdev
->dev
.platform_data
;
171 struct msm_camera_device_platform_data
*camdev
= sinfo
->pdata
;
174 release_mem_region(camio_ext
.mdcphy
, camio_ext
.mdcsz
);
176 release_mem_region(camio_ext
.appphy
, camio_ext
.appsz
);
178 camdev
->camera_gpio_off();
180 msm_camio_clk_disable(CAMIO_VFE_CLK
);
181 msm_camio_clk_disable(CAMIO_MDC_CLK
);
182 msm_camio_clk_disable(CAMIO_VFE_MDC_CLK
);
185 void msm_camio_camif_pad_reg_reset(void)
188 uint32_t mask
, value
;
190 /* select CLKRGM_VFE_SRC_CAM_VFE_SRC: internal source */
191 msm_camio_clk_sel(MSM_CAMIO_CLK_SRC_INTERNAL
);
193 reg
= (readl(mdcbase
)) & CAMIF_CFG_RMSK
;
195 mask
= CAM_SEL_BMSK
|
196 CAM_PCLK_SRC_SEL_BMSK
|
197 CAM_PCLK_INVERT_BMSK
;
199 value
= 1 << CAM_SEL_SHFT
|
200 3 << CAM_PCLK_SRC_SEL_SHFT
|
201 0 << CAM_PCLK_INVERT_SHFT
;
203 writel((reg
& (~mask
)) | (value
& mask
), mdcbase
);
206 reg
= (readl(mdcbase
)) & CAMIF_CFG_RMSK
;
207 mask
= CAM_PAD_REG_SW_RESET_BMSK
;
208 value
= 1 << CAM_PAD_REG_SW_RESET_SHFT
;
209 writel((reg
& (~mask
)) | (value
& mask
), mdcbase
);
212 reg
= (readl(mdcbase
)) & CAMIF_CFG_RMSK
;
213 mask
= CAM_PAD_REG_SW_RESET_BMSK
;
214 value
= 0 << CAM_PAD_REG_SW_RESET_SHFT
;
215 writel((reg
& (~mask
)) | (value
& mask
), mdcbase
);
218 msm_camio_clk_sel(MSM_CAMIO_CLK_SRC_EXTERNAL
);
222 void msm_camio_vfe_blk_reset(void)
226 val
= readl(appbase
+ 0x00000210);
228 writel(val
, appbase
+ 0x00000210);
231 val
= readl(appbase
+ 0x00000210);
233 writel(val
, appbase
+ 0x00000210);
237 void msm_camio_camif_pad_reg_reset_2(void)
240 uint32_t mask
, value
;
242 reg
= (readl(mdcbase
)) & CAMIF_CFG_RMSK
;
243 mask
= CAM_PAD_REG_SW_RESET_BMSK
;
244 value
= 1 << CAM_PAD_REG_SW_RESET_SHFT
;
245 writel((reg
& (~mask
)) | (value
& mask
), mdcbase
);
248 reg
= (readl(mdcbase
)) & CAMIF_CFG_RMSK
;
249 mask
= CAM_PAD_REG_SW_RESET_BMSK
;
250 value
= 0 << CAM_PAD_REG_SW_RESET_SHFT
;
251 writel((reg
& (~mask
)) | (value
& mask
), mdcbase
);
255 void msm_camio_clk_sel(enum msm_camio_clk_src_type srctype
)
257 struct clk
*clk
= NULL
;
261 if (clk
!= NULL
&& clk
!= ERR_PTR(-ENOENT
)) {
263 case MSM_CAMIO_CLK_SRC_INTERNAL
:
264 clk_set_flags(clk
, 0x00000100 << 1);
267 case MSM_CAMIO_CLK_SRC_EXTERNAL
:
268 clk_set_flags(clk
, 0x00000100);
277 int msm_camio_probe_on(struct platform_device
*pdev
)
279 struct msm_camera_sensor_info
*sinfo
= pdev
->dev
.platform_data
;
280 struct msm_camera_device_platform_data
*camdev
= sinfo
->pdata
;
281 camdev
->camera_gpio_on();
282 return msm_camio_clk_enable(CAMIO_VFE_CLK
);
285 int msm_camio_probe_off(struct platform_device
*pdev
)
287 struct msm_camera_sensor_info
*sinfo
= pdev
->dev
.platform_data
;
288 struct msm_camera_device_platform_data
*camdev
= sinfo
->pdata
;
289 camdev
->camera_gpio_off();
290 return msm_camio_clk_disable(CAMIO_VFE_CLK
);