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-rw-r--r--drivers/media/video/davinci/vpif.c76
-rw-r--r--drivers/media/video/davinci/vpif.h48
2 files changed, 98 insertions, 26 deletions
diff --git a/drivers/media/video/davinci/vpif.c b/drivers/media/video/davinci/vpif.c
index aa771268a5a..3b8eac31eca 100644
--- a/drivers/media/video/davinci/vpif.c
+++ b/drivers/media/video/davinci/vpif.c
@@ -19,7 +19,11 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
#include <linux/kernel.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
#include "vpif.h"
@@ -31,6 +35,12 @@ MODULE_LICENSE("GPL");
#define VPIF_CH2_MAX_MODES (15)
#define VPIF_CH3_MAX_MODES (02)
+static resource_size_t res_len;
+static struct resource *res;
+spinlock_t vpif_lock;
+
+void __iomem *vpif_base;
+
static inline void vpif_wr_bit(u32 reg, u32 bit, u32 val)
{
if (val)
@@ -151,17 +161,17 @@ static void config_vpif_params(struct vpif_params *vpifparams,
else if (config->capture_format) {
/* Set the polarity of various pins */
vpif_wr_bit(reg, VPIF_CH_FID_POLARITY_BIT,
- vpifparams->params.raw_params.fid_pol);
+ vpifparams->iface.fid_pol);
vpif_wr_bit(reg, VPIF_CH_V_VALID_POLARITY_BIT,
- vpifparams->params.raw_params.vd_pol);
+ vpifparams->iface.vd_pol);
vpif_wr_bit(reg, VPIF_CH_H_VALID_POLARITY_BIT,
- vpifparams->params.raw_params.hd_pol);
+ vpifparams->iface.hd_pol);
value = regr(reg);
/* Set data width */
value &= ((~(unsigned int)(0x3)) <<
VPIF_CH_DATA_WIDTH_BIT);
- value |= ((vpifparams->params.raw_params.data_sz) <<
+ value |= ((vpifparams->params.data_sz) <<
VPIF_CH_DATA_WIDTH_BIT);
regw(value, reg);
}
@@ -227,8 +237,60 @@ int vpif_channel_getfid(u8 channel_id)
}
EXPORT_SYMBOL(vpif_channel_getfid);
-void vpif_base_addr_init(void __iomem *base)
+static int __init vpif_probe(struct platform_device *pdev)
+{
+ int status = 0;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOENT;
+
+ res_len = res->end - res->start + 1;
+
+ res = request_mem_region(res->start, res_len, res->name);
+ if (!res)
+ return -EBUSY;
+
+ vpif_base = ioremap(res->start, res_len);
+ if (!vpif_base) {
+ status = -EBUSY;
+ goto fail;
+ }
+
+ spin_lock_init(&vpif_lock);
+ dev_info(&pdev->dev, "vpif probe success\n");
+ return 0;
+
+fail:
+ release_mem_region(res->start, res_len);
+ return status;
+}
+
+static int vpif_remove(struct platform_device *pdev)
{
- vpif_base = base;
+ iounmap(vpif_base);
+ release_mem_region(res->start, res_len);
+ return 0;
}
-EXPORT_SYMBOL(vpif_base_addr_init);
+
+static struct platform_driver vpif_driver = {
+ .driver = {
+ .name = "vpif",
+ .owner = THIS_MODULE,
+ },
+ .remove = __devexit_p(vpif_remove),
+ .probe = vpif_probe,
+};
+
+static void vpif_exit(void)
+{
+ platform_driver_unregister(&vpif_driver);
+}
+
+static int __init vpif_init(void)
+{
+ return platform_driver_register(&vpif_driver);
+}
+subsys_initcall(vpif_init);
+module_exit(vpif_exit);
+
diff --git a/drivers/media/video/davinci/vpif.h b/drivers/media/video/davinci/vpif.h
index fca26dcb54d..188841b476e 100644
--- a/drivers/media/video/davinci/vpif.h
+++ b/drivers/media/video/davinci/vpif.h
@@ -19,6 +19,7 @@
#include <linux/io.h>
#include <linux/videodev2.h>
#include <mach/hardware.h>
+#include <mach/dm646x.h>
/* Maximum channel allowed */
#define VPIF_NUM_CHANNELS (4)
@@ -26,7 +27,9 @@
#define VPIF_DISPLAY_NUM_CHANNELS (2)
/* Macros to read/write registers */
-static void __iomem *vpif_base;
+extern void __iomem *vpif_base;
+extern spinlock_t vpif_lock;
+
#define regr(reg) readl((reg) + vpif_base)
#define regw(value, reg) writel(value, (reg + vpif_base))
@@ -280,6 +283,10 @@ static inline void enable_channel1(int enable)
/* inline function to enable interrupt for channel0 */
static inline void channel0_intr_enable(int enable)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vpif_lock, flags);
+
if (enable) {
regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
@@ -292,11 +299,16 @@ static inline void channel0_intr_enable(int enable)
regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH0),
VPIF_INTEN_SET);
}
+ spin_unlock_irqrestore(&vpif_lock, flags);
}
/* inline function to enable interrupt for channel1 */
static inline void channel1_intr_enable(int enable)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vpif_lock, flags);
+
if (enable) {
regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
@@ -309,6 +321,7 @@ static inline void channel1_intr_enable(int enable)
regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH1),
VPIF_INTEN_SET);
}
+ spin_unlock_irqrestore(&vpif_lock, flags);
}
/* inline function to set buffer addresses in case of Y/C non mux mode */
@@ -431,6 +444,10 @@ static inline void enable_channel3(int enable)
/* inline function to enable interrupt for channel2 */
static inline void channel2_intr_enable(int enable)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vpif_lock, flags);
+
if (enable) {
regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
@@ -442,11 +459,16 @@ static inline void channel2_intr_enable(int enable)
regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH2),
VPIF_INTEN_SET);
}
+ spin_unlock_irqrestore(&vpif_lock, flags);
}
/* inline function to enable interrupt for channel3 */
static inline void channel3_intr_enable(int enable)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vpif_lock, flags);
+
if (enable) {
regw((regr(VPIF_INTEN) | 0x10), VPIF_INTEN);
regw((regr(VPIF_INTEN_SET) | 0x10), VPIF_INTEN_SET);
@@ -459,6 +481,7 @@ static inline void channel3_intr_enable(int enable)
regw((regr(VPIF_INTEN_SET) | VPIF_INTEN_FRAME_CH3),
VPIF_INTEN_SET);
}
+ spin_unlock_irqrestore(&vpif_lock, flags);
}
/* inline function to enable raw vbi data for channel2 */
@@ -571,7 +594,7 @@ struct vpif_channel_config_params {
v4l2_std_id stdid;
};
-struct vpif_interface;
+struct vpif_video_params;
struct vpif_params;
struct vpif_vbi_params;
@@ -579,13 +602,6 @@ int vpif_set_video_params(struct vpif_params *vpifparams, u8 channel_id);
void vpif_set_vbi_display_params(struct vpif_vbi_params *vbiparams,
u8 channel_id);
int vpif_channel_getfid(u8 channel_id);
-void vpif_base_addr_init(void __iomem *base);
-
-/* Enumerated data types */
-enum vpif_capture_pinpol {
- VPIF_CAPTURE_PINPOL_SAME = 0,
- VPIF_CAPTURE_PINPOL_INVERT = 1
-};
enum data_size {
_8BITS = 0,
@@ -593,13 +609,6 @@ enum data_size {
_12BITS,
};
-struct vpif_capture_params_raw {
- enum data_size data_sz;
- enum vpif_capture_pinpol fid_pol;
- enum vpif_capture_pinpol vd_pol;
- enum vpif_capture_pinpol hd_pol;
-};
-
/* Structure for vpif parameters for raw vbi data */
struct vpif_vbi_params {
__u32 hstart0; /* Horizontal start of raw vbi data for first field */
@@ -613,18 +622,19 @@ struct vpif_vbi_params {
};
/* structure for vpif parameters */
-struct vpif_interface {
+struct vpif_video_params {
__u8 storage_mode; /* Indicates field or frame mode */
unsigned long hpitch;
v4l2_std_id stdid;
};
struct vpif_params {
- struct vpif_interface video_params;
+ struct vpif_interface iface;
+ struct vpif_video_params video_params;
struct vpif_channel_config_params std_info;
union param {
struct vpif_vbi_params vbi_params;
- struct vpif_capture_params_raw raw_params;
+ enum data_size data_sz;
} params;
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-28 12:55:52 +0000