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DaVinci: DM646x - platform changes for vpif capture and display drivers

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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>
This commit is contained in:
Muralidharan Karicheri 2009-09-16 13:15:30 -04:00 committed by Kevin Hilman
parent 51e68e27d3
commit 85609c1ccd
3 changed files with 481 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

319
arch/arm/mach-davinci/board-dm646x-evm.c
View File

@ -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)

104
arch/arm/mach-davinci/dm646x.c
View File

@ -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);

59
arch/arm/mach-davinci/include/mach/dm646x.h
View File

@ -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 */