Commit 85b848ca authored by Murali Karicheri's avatar Murali Karicheri Committed by Mauro Carvalho Chehab
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V4L/DVB: V4L - vpfe capture - vpss driver enhancements for DM365



Enhancements to support DM365 ISP5 and VPSS module configuration.
Also cleaned up the driver by removing redundant variables.
Reviewed-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMurali Karicheri <mkaricheri@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 63e3ab14
......@@ -15,7 +15,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* common vpss driver for all video drivers.
* common vpss system module platform driver for all video drivers.
*/
#include <linux/kernel.h>
#include <linux/sched.h>
......@@ -35,12 +35,52 @@ MODULE_AUTHOR("Texas Instruments");
/* DM644x defines */
#define DM644X_SBL_PCR_VPSS (4)
#define DM355_VPSSBL_INTSEL 0x10
#define DM355_VPSSBL_EVTSEL 0x14
/* vpss BL register offsets */
#define DM355_VPSSBL_CCDCMUX 0x1c
/* vpss CLK register offsets */
#define DM355_VPSSCLK_CLKCTRL 0x04
/* masks and shifts */
#define VPSS_HSSISEL_SHIFT 4
/*
* VDINT0 - vpss_int0, VDINT1 - vpss_int1, H3A - vpss_int4,
* IPIPE_INT1_SDR - vpss_int5
*/
#define DM355_VPSSBL_INTSEL_DEFAULT 0xff83ff10
/* VENCINT - vpss_int8 */
#define DM355_VPSSBL_EVTSEL_DEFAULT 0x4
#define DM365_ISP5_PCCR 0x04
#define DM365_ISP5_INTSEL1 0x10
#define DM365_ISP5_INTSEL2 0x14
#define DM365_ISP5_INTSEL3 0x18
#define DM365_ISP5_CCDCMUX 0x20
#define DM365_ISP5_PG_FRAME_SIZE 0x28
#define DM365_VPBE_CLK_CTRL 0x00
/*
* vpss interrupts. VDINT0 - vpss_int0, VDINT1 - vpss_int1,
* AF - vpss_int3
*/
#define DM365_ISP5_INTSEL1_DEFAULT 0x0b1f0100
/* AEW - vpss_int6, RSZ_INT_DMA - vpss_int5 */
#define DM365_ISP5_INTSEL2_DEFAULT 0x1f0a0f1f
/* VENC - vpss_int8 */
#define DM365_ISP5_INTSEL3_DEFAULT 0x00000015
/* masks and shifts for DM365*/
#define DM365_CCDC_PG_VD_POL_SHIFT 0
#define DM365_CCDC_PG_HD_POL_SHIFT 1
#define CCD_SRC_SEL_MASK (BIT_MASK(5) | BIT_MASK(4))
#define CCD_SRC_SEL_SHIFT 4
/* Different SoC platforms supported by this driver */
enum vpss_platform_type {
DM644X,
DM355,
DM365,
};
/*
* vpss operations. Depends on platform. Not all functions are available
......@@ -59,13 +99,9 @@ struct vpss_hw_ops {
/* vpss configuration */
struct vpss_oper_config {
__iomem void *vpss_bl_regs_base;
__iomem void *vpss_regs_base;
struct resource *r1;
resource_size_t len1;
struct resource *r2;
resource_size_t len2;
char vpss_name[32];
__iomem void *vpss_regs_base0;
__iomem void *vpss_regs_base1;
enum vpss_platform_type platform;
spinlock_t vpss_lock;
struct vpss_hw_ops hw_ops;
};
......@@ -75,22 +111,46 @@ static struct vpss_oper_config oper_cfg;
/* register access routines */
static inline u32 bl_regr(u32 offset)
{
return __raw_readl(oper_cfg.vpss_bl_regs_base + offset);
return __raw_readl(oper_cfg.vpss_regs_base0 + offset);
}
static inline void bl_regw(u32 val, u32 offset)
{
__raw_writel(val, oper_cfg.vpss_bl_regs_base + offset);
__raw_writel(val, oper_cfg.vpss_regs_base0 + offset);
}
static inline u32 vpss_regr(u32 offset)
{
return __raw_readl(oper_cfg.vpss_regs_base + offset);
return __raw_readl(oper_cfg.vpss_regs_base1 + offset);
}
static inline void vpss_regw(u32 val, u32 offset)
{
__raw_writel(val, oper_cfg.vpss_regs_base + offset);
__raw_writel(val, oper_cfg.vpss_regs_base1 + offset);
}
/* For DM365 only */
static inline u32 isp5_read(u32 offset)
{
return __raw_readl(oper_cfg.vpss_regs_base0 + offset);
}
/* For DM365 only */
static inline void isp5_write(u32 val, u32 offset)
{
__raw_writel(val, oper_cfg.vpss_regs_base0 + offset);
}
static void dm365_select_ccdc_source(enum vpss_ccdc_source_sel src_sel)
{
u32 temp = isp5_read(DM365_ISP5_CCDCMUX) & ~CCD_SRC_SEL_MASK;
/* if we are using pattern generator, enable it */
if (src_sel == VPSS_PGLPBK || src_sel == VPSS_CCDCPG)
temp |= 0x08;
temp |= (src_sel << CCD_SRC_SEL_SHIFT);
isp5_write(temp, DM365_ISP5_CCDCMUX);
}
static void dm355_select_ccdc_source(enum vpss_ccdc_source_sel src_sel)
......@@ -101,9 +161,9 @@ static void dm355_select_ccdc_source(enum vpss_ccdc_source_sel src_sel)
int vpss_select_ccdc_source(enum vpss_ccdc_source_sel src_sel)
{
if (!oper_cfg.hw_ops.select_ccdc_source)
return -1;
return -EINVAL;
dm355_select_ccdc_source(src_sel);
oper_cfg.hw_ops.select_ccdc_source(src_sel);
return 0;
}
EXPORT_SYMBOL(vpss_select_ccdc_source);
......@@ -114,7 +174,7 @@ static int dm644x_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel)
if (wbl_sel < VPSS_PCR_AEW_WBL_0 ||
wbl_sel > VPSS_PCR_CCDC_WBL_O)
return -1;
return -EINVAL;
/* writing a 0 clear the overflow */
mask = ~(mask << wbl_sel);
......@@ -126,7 +186,7 @@ static int dm644x_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel)
int vpss_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel)
{
if (!oper_cfg.hw_ops.clear_wbl_overflow)
return -1;
return -EINVAL;
return oper_cfg.hw_ops.clear_wbl_overflow(wbl_sel);
}
......@@ -166,7 +226,7 @@ static int dm355_enable_clock(enum vpss_clock_sel clock_sel, int en)
default:
printk(KERN_ERR "dm355_enable_clock:"
" Invalid selector: %d\n", clock_sel);
return -1;
return -EINVAL;
}
spin_lock_irqsave(&oper_cfg.vpss_lock, flags);
......@@ -181,100 +241,221 @@ static int dm355_enable_clock(enum vpss_clock_sel clock_sel, int en)
return 0;
}
static int dm365_enable_clock(enum vpss_clock_sel clock_sel, int en)
{
unsigned long flags;
u32 utemp, mask = 0x1, shift = 0, offset = DM365_ISP5_PCCR;
u32 (*read)(u32 offset) = isp5_read;
void(*write)(u32 val, u32 offset) = isp5_write;
switch (clock_sel) {
case VPSS_BL_CLOCK:
break;
case VPSS_CCDC_CLOCK:
shift = 1;
break;
case VPSS_H3A_CLOCK:
shift = 2;
break;
case VPSS_RSZ_CLOCK:
shift = 3;
break;
case VPSS_IPIPE_CLOCK:
shift = 4;
break;
case VPSS_IPIPEIF_CLOCK:
shift = 5;
break;
case VPSS_PCLK_INTERNAL:
shift = 6;
break;
case VPSS_PSYNC_CLOCK_SEL:
shift = 7;
break;
case VPSS_VPBE_CLOCK:
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
case VPSS_VENC_CLOCK_SEL:
shift = 2;
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
case VPSS_LDC_CLOCK:
shift = 3;
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
case VPSS_FDIF_CLOCK:
shift = 4;
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
case VPSS_OSD_CLOCK_SEL:
shift = 6;
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
case VPSS_LDC_CLOCK_SEL:
shift = 7;
read = vpss_regr;
write = vpss_regw;
offset = DM365_VPBE_CLK_CTRL;
break;
default:
printk(KERN_ERR "dm365_enable_clock: Invalid selector: %d\n",
clock_sel);
return -1;
}
spin_lock_irqsave(&oper_cfg.vpss_lock, flags);
utemp = read(offset);
if (!en) {
mask = ~mask;
utemp &= (mask << shift);
} else
utemp |= (mask << shift);
write(utemp, offset);
spin_unlock_irqrestore(&oper_cfg.vpss_lock, flags);
return 0;
}
int vpss_enable_clock(enum vpss_clock_sel clock_sel, int en)
{
if (!oper_cfg.hw_ops.enable_clock)
return -1;
return -EINVAL;
return oper_cfg.hw_ops.enable_clock(clock_sel, en);
}
EXPORT_SYMBOL(vpss_enable_clock);
void dm365_vpss_set_sync_pol(struct vpss_sync_pol sync)
{
int val = 0;
val = isp5_read(DM365_ISP5_CCDCMUX);
val |= (sync.ccdpg_hdpol << DM365_CCDC_PG_HD_POL_SHIFT);
val |= (sync.ccdpg_vdpol << DM365_CCDC_PG_VD_POL_SHIFT);
isp5_write(val, DM365_ISP5_CCDCMUX);
}
EXPORT_SYMBOL(dm365_vpss_set_sync_pol);
void dm365_vpss_set_pg_frame_size(struct vpss_pg_frame_size frame_size)
{
int current_reg = ((frame_size.hlpfr >> 1) - 1) << 16;
current_reg |= (frame_size.pplen - 1);
isp5_write(current_reg, DM365_ISP5_PG_FRAME_SIZE);
}
EXPORT_SYMBOL(dm365_vpss_set_pg_frame_size);
static int __init vpss_probe(struct platform_device *pdev)
{
int status, dm355 = 0;
struct resource *r1, *r2;
char *platform_name;
int status;
if (!pdev->dev.platform_data) {
dev_err(&pdev->dev, "no platform data\n");
return -ENOENT;
}
strcpy(oper_cfg.vpss_name, pdev->dev.platform_data);
if (!strcmp(oper_cfg.vpss_name, "dm355_vpss"))
dm355 = 1;
else if (strcmp(oper_cfg.vpss_name, "dm644x_vpss")) {
platform_name = pdev->dev.platform_data;
if (!strcmp(platform_name, "dm355_vpss"))
oper_cfg.platform = DM355;
else if (!strcmp(platform_name, "dm365_vpss"))
oper_cfg.platform = DM365;
else if (!strcmp(platform_name, "dm644x_vpss"))
oper_cfg.platform = DM644X;
else {
dev_err(&pdev->dev, "vpss driver not supported on"
" this platform\n");
return -ENODEV;
}
dev_info(&pdev->dev, "%s vpss probed\n", oper_cfg.vpss_name);
oper_cfg.r1 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!oper_cfg.r1)
dev_info(&pdev->dev, "%s vpss probed\n", platform_name);
r1 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r1)
return -ENOENT;
oper_cfg.len1 = oper_cfg.r1->end - oper_cfg.r1->start + 1;
oper_cfg.r1 = request_mem_region(oper_cfg.r1->start, oper_cfg.len1,
oper_cfg.r1->name);
if (!oper_cfg.r1)
r1 = request_mem_region(r1->start, resource_size(r1), r1->name);
if (!r1)
return -EBUSY;
oper_cfg.vpss_bl_regs_base = ioremap(oper_cfg.r1->start, oper_cfg.len1);
if (!oper_cfg.vpss_bl_regs_base) {
oper_cfg.vpss_regs_base0 = ioremap(r1->start, resource_size(r1));
if (!oper_cfg.vpss_regs_base0) {
status = -EBUSY;
goto fail1;
}
if (dm355) {
oper_cfg.r2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!oper_cfg.r2) {
if (oper_cfg.platform == DM355 || oper_cfg.platform == DM365) {
r2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!r2) {
status = -ENOENT;
goto fail2;
}
oper_cfg.len2 = oper_cfg.r2->end - oper_cfg.r2->start + 1;
oper_cfg.r2 = request_mem_region(oper_cfg.r2->start,
oper_cfg.len2,
oper_cfg.r2->name);
if (!oper_cfg.r2) {
r2 = request_mem_region(r2->start, resource_size(r2), r2->name);
if (!r2) {
status = -EBUSY;
goto fail2;
}
oper_cfg.vpss_regs_base = ioremap(oper_cfg.r2->start,
oper_cfg.len2);
if (!oper_cfg.vpss_regs_base) {
oper_cfg.vpss_regs_base1 = ioremap(r2->start,
resource_size(r2));
if (!oper_cfg.vpss_regs_base1) {
status = -EBUSY;
goto fail3;
}
}
if (dm355) {
if (oper_cfg.platform == DM355) {
oper_cfg.hw_ops.enable_clock = dm355_enable_clock;
oper_cfg.hw_ops.select_ccdc_source = dm355_select_ccdc_source;
/* Setup vpss interrupts */
bl_regw(DM355_VPSSBL_INTSEL_DEFAULT, DM355_VPSSBL_INTSEL);
bl_regw(DM355_VPSSBL_EVTSEL_DEFAULT, DM355_VPSSBL_EVTSEL);
} else if (oper_cfg.platform == DM365) {
oper_cfg.hw_ops.enable_clock = dm365_enable_clock;
oper_cfg.hw_ops.select_ccdc_source = dm365_select_ccdc_source;
/* Setup vpss interrupts */
isp5_write(DM365_ISP5_INTSEL1_DEFAULT, DM365_ISP5_INTSEL1);
isp5_write(DM365_ISP5_INTSEL2_DEFAULT, DM365_ISP5_INTSEL2);
isp5_write(DM365_ISP5_INTSEL3_DEFAULT, DM365_ISP5_INTSEL3);
} else
oper_cfg.hw_ops.clear_wbl_overflow = dm644x_clear_wbl_overflow;
spin_lock_init(&oper_cfg.vpss_lock);
dev_info(&pdev->dev, "%s vpss probe success\n", oper_cfg.vpss_name);
dev_info(&pdev->dev, "%s vpss probe success\n", platform_name);
return 0;
fail3:
release_mem_region(oper_cfg.r2->start, oper_cfg.len2);
release_mem_region(r2->start, resource_size(r2));
fail2:
iounmap(oper_cfg.vpss_bl_regs_base);
iounmap(oper_cfg.vpss_regs_base0);
fail1:
release_mem_region(oper_cfg.r1->start, oper_cfg.len1);
release_mem_region(r1->start, resource_size(r1));
return status;
}
static int __devexit vpss_remove(struct platform_device *pdev)
{
iounmap(oper_cfg.vpss_bl_regs_base);
release_mem_region(oper_cfg.r1->start, oper_cfg.len1);
if (!strcmp(oper_cfg.vpss_name, "dm355_vpss")) {
iounmap(oper_cfg.vpss_regs_base);
release_mem_region(oper_cfg.r2->start, oper_cfg.len2);
struct resource *res;
iounmap(oper_cfg.vpss_regs_base0);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
if (oper_cfg.platform == DM355 || oper_cfg.platform == DM365) {
iounmap(oper_cfg.vpss_regs_base1);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
release_mem_region(res->start, resource_size(res));
}
return 0;
}
......
......@@ -29,7 +29,19 @@
/* selector for ccdc input selection on DM355 */
enum vpss_ccdc_source_sel {
VPSS_CCDCIN,
VPSS_HSSIIN
VPSS_HSSIIN,
VPSS_PGLPBK, /* for DM365 only */
VPSS_CCDCPG /* for DM365 only */
};
struct vpss_sync_pol {
unsigned int ccdpg_hdpol:1;
unsigned int ccdpg_vdpol:1;
};
struct vpss_pg_frame_size {
short hlpfr;
short pplen;
};
/* Used for enable/diable VPSS Clock */
......@@ -47,12 +59,38 @@ enum vpss_clock_sel {
*/
VPSS_VENC_CLOCK_SEL,
VPSS_VPBE_CLOCK,
/* DM365 only clocks */
VPSS_IPIPEIF_CLOCK,
VPSS_RSZ_CLOCK,
VPSS_BL_CLOCK,
/*
* When using VPSS_PCLK_INTERNAL in vpss_enable_clock() api
* following applies:-
* en = 0 disable internal PCLK
* en = 1 enables internal PCLK
*/
VPSS_PCLK_INTERNAL,
/*
* When using VPSS_PSYNC_CLOCK_SEL in vpss_enable_clock() api
* following applies:-
* en = 0 enables MMR clock
* en = 1 enables VPSS clock
*/
VPSS_PSYNC_CLOCK_SEL,
VPSS_LDC_CLOCK_SEL,
VPSS_OSD_CLOCK_SEL,
VPSS_FDIF_CLOCK,
VPSS_LDC_CLOCK
};
/* select input to ccdc on dm355 */
int vpss_select_ccdc_source(enum vpss_ccdc_source_sel src_sel);
/* enable/disable a vpss clock, 0 - success, -1 - failure */
int vpss_enable_clock(enum vpss_clock_sel clock_sel, int en);
/* set sync polarity, only for DM365*/
void dm365_vpss_set_sync_pol(struct vpss_sync_pol);
/* set the PG_FRAME_SIZE register, only for DM365 */
void dm365_vpss_set_pg_frame_size(struct vpss_pg_frame_size);
/* wbl reset for dm644x */
enum vpss_wbl_sel {
......@@ -65,5 +103,6 @@ enum vpss_wbl_sel {
VPSS_PCR_PREV_WBL_0,
VPSS_PCR_CCDC_WBL_O,
};
/* clear wbl overflow flag for DM6446 */
int vpss_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel);
#endif
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