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authorMuralidharan Karicheri <m-karicheri2@ti.com>2009-09-16 13:15:30 -0400
committerKevin Hilman <khilman@deeprootsystems.com>2009-09-16 10:28:46 -0700
commit85609c1ccda64af7d7c277469183f20e4f3b69c3 (patch)
treea9d7ca458764fc0b8bb4f4f23736b9cf861e3974 /arch/arm/mach-davinci
parent51e68e27d310034332b67a6762914af9589b3db5 (diff)
downloadop-kernel-dev-85609c1ccda64af7d7c277469183f20e4f3b69c3.zip
op-kernel-dev-85609c1ccda64af7d7c277469183f20e4f3b69c3.tar.gz
DaVinci: DM646x - platform changes for vpif capture and display drivers
VPIF display changes (Chaithrika) Add platform device and resource structures. Also define a platform specific clock setup function that can be accessed by the driver to configure the clock and CPLD. VPIF caputure changes (Murali) 1) Modify vpif_subdev_info to add board_info, routing information and vpif interface configuration. Remove addr since it is part of board_info 2) Add code to setup channel mode and input decoder path for vpif capture driver Also incorporated comments against version v0 of the patch series and added a spinlock to protect writes to common registers Tested on DM6467 on channel 0 using TVP514x. Following bootargs used for drivers: vpif_capture.ch0_bufsize=829440 vpif_display.ch2_bufsize=829440 Signed-off-by: Manjunath Hadli <mrh@ti.com> Signed-off-by: Brijesh Jadav <brijesh.j@ti.com> Signed-off-by: Chaithrika U S <chaithrika@ti.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/board-dm646x-evm.c319
-rw-r--r--arch/arm/mach-davinci/dm646x.c104
-rw-r--r--arch/arm/mach-davinci/include/mach/dm646x.h59
3 files changed, 481 insertions, 1 deletions
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 2054704..24e0e13 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -34,6 +34,8 @@
#include <linux/i2c/pcf857x.h>
#include <linux/etherdevice.h>
+#include <media/tvp514x.h>
+
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -62,6 +64,30 @@
#define DM646X_EVM_PHY_MASK (0x2)
#define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
+#define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)
+#define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
+#define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
+#define VCH2CLK_SYSCLK8 (BIT(9))
+#define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
+#define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
+#define VCH3CLK_SYSCLK8 (BIT(13))
+#define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
+
+#define VIDCH2CLK (BIT(10))
+#define VIDCH3CLK (BIT(11))
+#define VIDCH1CLK (BIT(4))
+#define TVP7002_INPUT (BIT(4))
+#define TVP5147_INPUT (~BIT(4))
+#define VPIF_INPUT_ONE_CHANNEL (BIT(5))
+#define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
+#define TVP5147_CH0 "tvp514x-0"
+#define TVP5147_CH1 "tvp514x-1"
+
+static void __iomem *vpif_vidclkctl_reg;
+static void __iomem *vpif_vsclkdis_reg;
+/* spin lock for updating above registers */
+static spinlock_t vpif_reg_lock;
+
static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
@@ -287,6 +313,40 @@ static struct snd_platform_data dm646x_evm_snd_data[] = {
},
};
+static struct i2c_client *cpld_client;
+
+static int cpld_video_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ cpld_client = client;
+ return 0;
+}
+
+static int __devexit cpld_video_remove(struct i2c_client *client)
+{
+ cpld_client = NULL;
+ return 0;
+}
+
+static const struct i2c_device_id cpld_video_id[] = {
+ { "cpld_video", 0 },
+ { }
+};
+
+static struct i2c_driver cpld_video_driver = {
+ .driver = {
+ .name = "cpld_video",
+ },
+ .probe = cpld_video_probe,
+ .remove = cpld_video_remove,
+ .id_table = cpld_video_id,
+};
+
+static void evm_init_cpld(void)
+{
+ i2c_add_driver(&cpld_video_driver);
+}
+
static struct i2c_board_info __initdata i2c_info[] = {
{
I2C_BOARD_INFO("24c256", 0x50),
@@ -301,7 +361,10 @@ static struct i2c_board_info __initdata i2c_info[] = {
},
{
I2C_BOARD_INFO("tlv320aic33", 0x18),
- }
+ },
+ {
+ I2C_BOARD_INFO("cpld_video", 0x3b),
+ },
};
static struct davinci_i2c_platform_data i2c_pdata = {
@@ -309,11 +372,265 @@ static struct davinci_i2c_platform_data i2c_pdata = {
.bus_delay = 0 /* usec */,
};
+static int set_vpif_clock(int mux_mode, int hd)
+{
+ unsigned long flags;
+ unsigned int value;
+ int val = 0;
+ int err = 0;
+
+ if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)
+ return -ENXIO;
+
+ /* disable the clock */
+ spin_lock_irqsave(&vpif_reg_lock, flags);
+ value = __raw_readl(vpif_vsclkdis_reg);
+ value |= (VIDCH3CLK | VIDCH2CLK);
+ __raw_writel(value, vpif_vsclkdis_reg);
+ spin_unlock_irqrestore(&vpif_reg_lock, flags);
+
+ val = i2c_smbus_read_byte(cpld_client);
+ if (val < 0)
+ return val;
+
+ if (mux_mode == 1)
+ val &= ~0x40;
+ else
+ val |= 0x40;
+
+ err = i2c_smbus_write_byte(cpld_client, val);
+ if (err)
+ return err;
+
+ value = __raw_readl(vpif_vidclkctl_reg);
+ value &= ~(VCH2CLK_MASK);
+ value &= ~(VCH3CLK_MASK);
+
+ if (hd >= 1)
+ value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
+ else
+ value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
+
+ __raw_writel(value, vpif_vidclkctl_reg);
+
+ spin_lock_irqsave(&vpif_reg_lock, flags);
+ value = __raw_readl(vpif_vsclkdis_reg);
+ /* enable the clock */
+ value &= ~(VIDCH3CLK | VIDCH2CLK);
+ __raw_writel(value, vpif_vsclkdis_reg);
+ spin_unlock_irqrestore(&vpif_reg_lock, flags);
+
+ return 0;
+}
+
+static struct vpif_subdev_info dm646x_vpif_subdev[] = {
+ {
+ .name = "adv7343",
+ .board_info = {
+ I2C_BOARD_INFO("adv7343", 0x2a),
+ },
+ },
+ {
+ .name = "ths7303",
+ .board_info = {
+ I2C_BOARD_INFO("ths7303", 0x2c),
+ },
+ },
+};
+
+static const char *output[] = {
+ "Composite",
+ "Component",
+ "S-Video",
+};
+
+static struct vpif_display_config dm646x_vpif_display_config = {
+ .set_clock = set_vpif_clock,
+ .subdevinfo = dm646x_vpif_subdev,
+ .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
+ .output = output,
+ .output_count = ARRAY_SIZE(output),
+ .card_name = "DM646x EVM",
+};
+
+/**
+ * setup_vpif_input_path()
+ * @channel: channel id (0 - CH0, 1 - CH1)
+ * @sub_dev_name: ptr sub device name
+ *
+ * This will set vpif input to capture data from tvp514x or
+ * tvp7002.
+ */
+static int setup_vpif_input_path(int channel, const char *sub_dev_name)
+{
+ int err = 0;
+ int val;
+
+ /* for channel 1, we don't do anything */
+ if (channel != 0)
+ return 0;
+
+ if (!cpld_client)
+ return -ENXIO;
+
+ val = i2c_smbus_read_byte(cpld_client);
+ if (val < 0)
+ return val;
+
+ if (!strcmp(sub_dev_name, TVP5147_CH0) ||
+ !strcmp(sub_dev_name, TVP5147_CH1))
+ val &= TVP5147_INPUT;
+ else
+ val |= TVP7002_INPUT;
+
+ err = i2c_smbus_write_byte(cpld_client, val);
+ if (err)
+ return err;
+ return 0;
+}
+
+/**
+ * setup_vpif_input_channel_mode()
+ * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
+ *
+ * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
+ */
+static int setup_vpif_input_channel_mode(int mux_mode)
+{
+ unsigned long flags;
+ int err = 0;
+ int val;
+ u32 value;
+
+ if (!vpif_vsclkdis_reg || !cpld_client)
+ return -ENXIO;
+
+ val = i2c_smbus_read_byte(cpld_client);
+ if (val < 0)
+ return val;
+
+ spin_lock_irqsave(&vpif_reg_lock, flags);
+ value = __raw_readl(vpif_vsclkdis_reg);
+ if (mux_mode) {
+ val &= VPIF_INPUT_TWO_CHANNEL;
+ value |= VIDCH1CLK;
+ } else {
+ val |= VPIF_INPUT_ONE_CHANNEL;
+ value &= ~VIDCH1CLK;
+ }
+ __raw_writel(value, vpif_vsclkdis_reg);
+ spin_unlock_irqrestore(&vpif_reg_lock, flags);
+
+ err = i2c_smbus_write_byte(cpld_client, val);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static struct tvp514x_platform_data tvp5146_pdata = {
+ .clk_polarity = 0,
+ .hs_polarity = 1,
+ .vs_polarity = 1
+};
+
+#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
+
+static struct vpif_subdev_info vpif_capture_sdev_info[] = {
+ {
+ .name = TVP5147_CH0,
+ .board_info = {
+ I2C_BOARD_INFO("tvp5146", 0x5d),
+ .platform_data = &tvp5146_pdata,
+ },
+ .input = INPUT_CVBS_VI2B,
+ .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
+ .can_route = 1,
+ .vpif_if = {
+ .if_type = VPIF_IF_BT656,
+ .hd_pol = 1,
+ .vd_pol = 1,
+ .fid_pol = 0,
+ },
+ },
+ {
+ .name = TVP5147_CH1,
+ .board_info = {
+ I2C_BOARD_INFO("tvp5146", 0x5c),
+ .platform_data = &tvp5146_pdata,
+ },
+ .input = INPUT_SVIDEO_VI2C_VI1C,
+ .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
+ .can_route = 1,
+ .vpif_if = {
+ .if_type = VPIF_IF_BT656,
+ .hd_pol = 1,
+ .vd_pol = 1,
+ .fid_pol = 0,
+ },
+ },
+};
+
+static const struct vpif_input dm6467_ch0_inputs[] = {
+ {
+ .input = {
+ .index = 0,
+ .name = "Composite",
+ .type = V4L2_INPUT_TYPE_CAMERA,
+ .std = TVP514X_STD_ALL,
+ },
+ .subdev_name = TVP5147_CH0,
+ },
+};
+
+static const struct vpif_input dm6467_ch1_inputs[] = {
+ {
+ .input = {
+ .index = 0,
+ .name = "S-Video",
+ .type = V4L2_INPUT_TYPE_CAMERA,
+ .std = TVP514X_STD_ALL,
+ },
+ .subdev_name = TVP5147_CH1,
+ },
+};
+
+static struct vpif_capture_config dm646x_vpif_capture_cfg = {
+ .setup_input_path = setup_vpif_input_path,
+ .setup_input_channel_mode = setup_vpif_input_channel_mode,
+ .subdev_info = vpif_capture_sdev_info,
+ .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
+ .chan_config[0] = {
+ .inputs = dm6467_ch0_inputs,
+ .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
+ },
+ .chan_config[1] = {
+ .inputs = dm6467_ch1_inputs,
+ .input_count = ARRAY_SIZE(dm6467_ch1_inputs),
+ },
+};
+
+static void __init evm_init_video(void)
+{
+ vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);
+ vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);
+ if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {
+ pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
+ return;
+ }
+ spin_lock_init(&vpif_reg_lock);
+
+ dm646x_setup_vpif(&dm646x_vpif_display_config,
+ &dm646x_vpif_capture_cfg);
+}
+
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
i2c_add_driver(&dm6467evm_cpld_driver);
i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
+ evm_init_cpld();
+ evm_init_video();
}
static void __init davinci_map_io(void)
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 8fa2803..0976049 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -32,6 +32,15 @@
#include "clock.h"
#include "mux.h"
+#define DAVINCI_VPIF_BASE (0x01C12000)
+#define VDD3P3V_PWDN_OFFSET (0x48)
+#define VSCLKDIS_OFFSET (0x6C)
+
+#define VDD3P3V_VID_MASK (BIT_MASK(3) | BIT_MASK(2) | BIT_MASK(1) |\
+ BIT_MASK(0))
+#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) | BIT_MASK(9) |\
+ BIT_MASK(8))
+
/*
* Device specific clocks
*/
@@ -686,6 +695,75 @@ static struct platform_device dm646x_dit_device = {
.id = -1,
};
+static u64 vpif_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource vpif_resource[] = {
+ {
+ .start = DAVINCI_VPIF_BASE,
+ .end = DAVINCI_VPIF_BASE + 0x03ff,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device vpif_dev = {
+ .name = "vpif",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_resource,
+ .num_resources = ARRAY_SIZE(vpif_resource),
+};
+
+static struct resource vpif_display_resource[] = {
+ {
+ .start = IRQ_DM646X_VP_VERTINT2,
+ .end = IRQ_DM646X_VP_VERTINT2,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT3,
+ .end = IRQ_DM646X_VP_VERTINT3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device vpif_display_dev = {
+ .name = "vpif_display",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_display_resource,
+ .num_resources = ARRAY_SIZE(vpif_display_resource),
+};
+
+static struct resource vpif_capture_resource[] = {
+ {
+ .start = IRQ_DM646X_VP_VERTINT0,
+ .end = IRQ_DM646X_VP_VERTINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT1,
+ .end = IRQ_DM646X_VP_VERTINT1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device vpif_capture_dev = {
+ .name = "vpif_capture",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_capture_resource,
+ .num_resources = ARRAY_SIZE(vpif_capture_resource),
+};
+
/*----------------------------------------------------------------------*/
static struct map_desc dm646x_io_desc[] = {
@@ -814,6 +892,32 @@ void __init dm646x_init_mcasp1(struct snd_platform_data *pdata)
platform_device_register(&dm646x_dit_device);
}
+void dm646x_setup_vpif(struct vpif_display_config *display_config,
+ struct vpif_capture_config *capture_config)
+{
+ unsigned int value;
+ void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
+
+ value = __raw_readl(base + VSCLKDIS_OFFSET);
+ value &= ~VSCLKDIS_MASK;
+ __raw_writel(value, base + VSCLKDIS_OFFSET);
+
+ value = __raw_readl(base + VDD3P3V_PWDN_OFFSET);
+ value &= ~VDD3P3V_VID_MASK;
+ __raw_writel(value, base + VDD3P3V_PWDN_OFFSET);
+
+ davinci_cfg_reg(DM646X_STSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_STSIMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSIMUX_DISABLE);
+
+ vpif_display_dev.dev.platform_data = display_config;
+ vpif_capture_dev.dev.platform_data = capture_config;
+ platform_device_register(&vpif_dev);
+ platform_device_register(&vpif_display_dev);
+ platform_device_register(&vpif_capture_dev);
+}
+
void __init dm646x_init(void)
{
davinci_common_init(&davinci_soc_info_dm646x);
diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h
index feb1e02..8cec746 100644
--- a/arch/arm/mach-davinci/include/mach/dm646x.h
+++ b/arch/arm/mach-davinci/include/mach/dm646x.h
@@ -14,6 +14,8 @@
#include <mach/hardware.h>
#include <mach/emac.h>
#include <mach/asp.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
#define DM646X_EMAC_BASE (0x01C80000)
#define DM646X_EMAC_CNTRL_OFFSET (0x0000)
@@ -29,4 +31,61 @@ void __init dm646x_init_ide(void);
void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);
+void dm646x_video_init(void);
+
+enum vpif_if_type {
+ VPIF_IF_BT656,
+ VPIF_IF_BT1120,
+ VPIF_IF_RAW_BAYER
+};
+
+struct vpif_interface {
+ enum vpif_if_type if_type;
+ unsigned hd_pol:1;
+ unsigned vd_pol:1;
+ unsigned fid_pol:1;
+};
+
+struct vpif_subdev_info {
+ const char *name;
+ struct i2c_board_info board_info;
+ u32 input;
+ u32 output;
+ unsigned can_route:1;
+ struct vpif_interface vpif_if;
+};
+
+struct vpif_display_config {
+ int (*set_clock)(int, int);
+ struct vpif_subdev_info *subdevinfo;
+ int subdev_count;
+ const char **output;
+ int output_count;
+ const char *card_name;
+};
+
+struct vpif_input {
+ struct v4l2_input input;
+ const char *subdev_name;
+};
+
+#define VPIF_CAPTURE_MAX_CHANNELS 2
+
+struct vpif_capture_chan_config {
+ const struct vpif_input *inputs;
+ int input_count;
+};
+
+struct vpif_capture_config {
+ int (*setup_input_channel_mode)(int);
+ int (*setup_input_path)(int, const char *);
+ struct vpif_capture_chan_config chan_config[VPIF_CAPTURE_MAX_CHANNELS];
+ struct vpif_subdev_info *subdev_info;
+ int subdev_count;
+ const char *card_name;
+};
+
+void dm646x_setup_vpif(struct vpif_display_config *,
+ struct vpif_capture_config *);
+
#endif /* __ASM_ARCH_DM646X_H */
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