diff options
Diffstat (limited to 'drivers/media/video/davinci/vpss.c')
| -rw-r--r-- | drivers/media/video/davinci/vpss.c | 289 |
1 files changed, 235 insertions, 54 deletions
diff --git a/drivers/media/video/davinci/vpss.c b/drivers/media/video/davinci/vpss.c index 7ee72ecd3d8..7918680917d 100644 --- a/drivers/media/video/davinci/vpss.c +++ b/drivers/media/video/davinci/vpss.c @@ -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; } |