@@ -57,6 +57,69 @@ struct cafe_camera {
};
/*
+ * Most of the camera controller registers are defined in mcam-core.h,
+ * but the Cafe platform has some additional registers of its own;
+ * they are described here.
+ */
+
+/*
+ * "General purpose register" has a couple of GPIOs used for sensor
+ * power and reset on OLPC XO 1.0 systems.
+ */
+#define REG_GPR 0xb4
+#define GPR_C1EN 0x00000020 /* Pad 1 (power down) enable */
+#define GPR_C0EN 0x00000010 /* Pad 0 (reset) enable */
+#define GPR_C1 0x00000002 /* Control 1 value */
+/*
+ * Control 0 is wired to reset on OLPC machines. For ov7x sensors,
+ * it is active low.
+ */
+#define GPR_C0 0x00000001 /* Control 0 value */
+
+/*
+ * These registers control the SMBUS module for communicating
+ * with the sensor.
+ */
+#define REG_TWSIC0 0xb8 /* TWSI (smbus) control 0 */
+#define TWSIC0_EN 0x00000001 /* TWSI enable */
+#define TWSIC0_MODE 0x00000002 /* 1 = 16-bit, 0 = 8-bit */
+#define TWSIC0_SID 0x000003fc /* Slave ID */
+#define TWSIC0_SID_SHIFT 2
+#define TWSIC0_CLKDIV 0x0007fc00 /* Clock divider */
+#define TWSIC0_MASKACK 0x00400000 /* Mask ack from sensor */
+#define TWSIC0_OVMAGIC 0x00800000 /* Make it work on OV sensors */
+
+#define REG_TWSIC1 0xbc /* TWSI control 1 */
+#define TWSIC1_DATA 0x0000ffff /* Data to/from camchip */
+#define TWSIC1_ADDR 0x00ff0000 /* Address (register) */
+#define TWSIC1_ADDR_SHIFT 16
+#define TWSIC1_READ 0x01000000 /* Set for read op */
+#define TWSIC1_WSTAT 0x02000000 /* Write status */
+#define TWSIC1_RVALID 0x04000000 /* Read data valid */
+#define TWSIC1_ERROR 0x08000000 /* Something screwed up */
+
+/*
+ * Here's the weird global control registers
+ */
+#define REG_GL_CSR 0x3004 /* Control/status register */
+#define GCSR_SRS 0x00000001 /* SW Reset set */
+#define GCSR_SRC 0x00000002 /* SW Reset clear */
+#define GCSR_MRS 0x00000004 /* Master reset set */
+#define GCSR_MRC 0x00000008 /* HW Reset clear */
+#define GCSR_CCIC_EN 0x00004000 /* CCIC Clock enable */
+#define REG_GL_IMASK 0x300c /* Interrupt mask register */
+#define GIMSK_CCIC_EN 0x00000004 /* CCIC Interrupt enable */
+
+#define REG_GL_FCR 0x3038 /* GPIO functional control register */
+#define GFCR_GPIO_ON 0x08 /* Camera GPIO enabled */
+#define REG_GL_GPIOR 0x315c /* GPIO register */
+#define GGPIO_OUT 0x80000 /* GPIO output */
+#define GGPIO_VAL 0x00008 /* Output pin value */
+
+#define REG_LEN (REG_GL_IMASK + 4)
+
+
+/*
* Debugging and related.
*/
#define cam_err(cam, fmt, arg...) \
@@ -249,64 +249,10 @@ int mccic_resume(struct mcam_camera *cam);
#define REG_CLKCTRL 0x88 /* Clock control */
#define CLK_DIV_MASK 0x0000ffff /* Upper bits RW "reserved" */
-#define REG_GPR 0xb4 /* General purpose register. This
- controls inputs to the power and reset
- pins on the OV7670 used with OLPC;
- other deployments could differ. */
-#define GPR_C1EN 0x00000020 /* Pad 1 (power down) enable */
-#define GPR_C0EN 0x00000010 /* Pad 0 (reset) enable */
-#define GPR_C1 0x00000002 /* Control 1 value */
-/*
- * Control 0 is wired to reset on OLPC machines. For ov7x sensors,
- * it is active low, for 0v6x, instead, it's active high. What
- * fun.
- */
-#define GPR_C0 0x00000001 /* Control 0 value */
-
-#define REG_TWSIC0 0xb8 /* TWSI (smbus) control 0 */
-#define TWSIC0_EN 0x00000001 /* TWSI enable */
-#define TWSIC0_MODE 0x00000002 /* 1 = 16-bit, 0 = 8-bit */
-#define TWSIC0_SID 0x000003fc /* Slave ID */
-#define TWSIC0_SID_SHIFT 2
-#define TWSIC0_CLKDIV 0x0007fc00 /* Clock divider */
-#define TWSIC0_MASKACK 0x00400000 /* Mask ack from sensor */
-#define TWSIC0_OVMAGIC 0x00800000 /* Make it work on OV sensors */
-
-#define REG_TWSIC1 0xbc /* TWSI control 1 */
-#define TWSIC1_DATA 0x0000ffff /* Data to/from camchip */
-#define TWSIC1_ADDR 0x00ff0000 /* Address (register) */
-#define TWSIC1_ADDR_SHIFT 16
-#define TWSIC1_READ 0x01000000 /* Set for read op */
-#define TWSIC1_WSTAT 0x02000000 /* Write status */
-#define TWSIC1_RVALID 0x04000000 /* Read data valid */
-#define TWSIC1_ERROR 0x08000000 /* Something screwed up */
-
-
+/* This appears to be a Cafe-only register */
#define REG_UBAR 0xc4 /* Upper base address register */
/*
- * Here's the weird global control registers which are said to live
- * way up here.
- */
-#define REG_GL_CSR 0x3004 /* Control/status register */
-#define GCSR_SRS 0x00000001 /* SW Reset set */
-#define GCSR_SRC 0x00000002 /* SW Reset clear */
-#define GCSR_MRS 0x00000004 /* Master reset set */
-#define GCSR_MRC 0x00000008 /* HW Reset clear */
-#define GCSR_CCIC_EN 0x00004000 /* CCIC Clock enable */
-#define REG_GL_IMASK 0x300c /* Interrupt mask register */
-#define GIMSK_CCIC_EN 0x00000004 /* CCIC Interrupt enable */
-
-#define REG_GL_FCR 0x3038 /* GPIO functional control register */
-#define GFCR_GPIO_ON 0x08 /* Camera GPIO enabled */
-#define REG_GL_GPIOR 0x315c /* GPIO register */
-#define GGPIO_OUT 0x80000 /* GPIO output */
-#define GGPIO_VAL 0x00008 /* Output pin value */
-
-#define REG_LEN (REG_GL_IMASK + 4)
-
-
-/*
* Useful stuff that probably belongs somewhere global.
*/
#define VGA_WIDTH 640
Nobody else ever needs to see these, so let's hide them. Signed-off-by: Jonathan Corbet <corbet@lwn.net> --- drivers/media/video/marvell-ccic/cafe-driver.c | 63 ++++++++++++++++++++++++ drivers/media/video/marvell-ccic/mcam-core.h | 56 +--------------------- 2 files changed, 64 insertions(+), 55 deletions(-)