fbdev: bfin_adv7393fb: new Blackfin ADV7393 driver

Driver for ADV7393 add-on card for multiple Blackfin boards.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 321 insertions, 0 deletions

diff --git a/drivers/video/bfin_adv7393fb.h b/drivers/video/bfin_adv7393fb.h
new file mode 100644
index 00000000000..8c7f9e4fc6e
--- /dev/null
+++ b/drivers/video/bfin_adv7393fb.h
@@ -0,0 +1,321 @@
+/*
+ * Frame buffer driver for ADV7393/2 video encoder
+ *
+ * Copyright 2006-2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or late.
+ */
+
+#ifndef __BFIN_ADV7393FB_H__
+#define __BFIN_ADV7393FB_H__
+
+#define BFIN_LCD_NBR_PALETTE_ENTRIES	256
+
+#ifdef CONFIG_NTSC
+# define VMODE 0
+#endif
+#ifdef CONFIG_PAL
+# define VMODE 1
+#endif
+#ifdef CONFIG_NTSC_640x480
+# define VMODE 2
+#endif
+#ifdef CONFIG_PAL_640x480
+# define VMODE 3
+#endif
+#ifdef CONFIG_NTSC_YCBCR
+# define VMODE 4
+#endif
+#ifdef CONFIG_PAL_YCBCR
+# define VMODE 5
+#endif
+
+#ifndef VMODE
+# define VMODE 1
+#endif
+
+#ifdef CONFIG_ADV7393_2XMEM
+# define VMEM 2
+#else
+# define VMEM 1
+#endif
+
+#if defined(CONFIG_BF537) || defined(CONFIG_BF536) || defined(CONFIG_BF534)
+# define DMA_CFG_VAL	0x7935	/* Set Sync Bit */
+# define VB_DUMMY_MEMORY_SOURCE	L1_DATA_B_START
+#else
+# define DMA_CFG_VAL	0x7915
+# define VB_DUMMY_MEMORY_SOURCE	BOOT_ROM_START
+#endif
+
+enum {
+	DESTRUCT,
+	BUILD,
+};
+
+enum {
+	POWER_ON,
+	POWER_DOWN,
+	BLANK_ON,
+	BLANK_OFF,
+};
+
+#define DRIVER_NAME "bfin-adv7393"
+
+struct adv7393fb_modes {
+	const s8 name[25];	/* Full name */
+	u16 xres;		/* Active Horizonzal Pixels  */
+	u16 yres;		/* Active Vertical Pixels  */
+	u16 bpp;
+	u16 vmode;
+	u16 a_lines;		/* Active Lines per Field */
+	u16 vb1_lines;		/* Vertical Blanking Field 1 Lines */
+	u16 vb2_lines;		/* Vertical Blanking Field 2 Lines */
+	u16 tot_lines;		/* Total Lines per Frame */
+	u16 boeft_blank;	/* Before Odd/Even Field Transition No. of Blank Pixels */
+	u16 aoeft_blank;	/* After Odd/Even Field Transition No. of Blank Pixels */
+	const s8 *adv7393_i2c_initd;
+	u16 adv7393_i2c_initd_len;
+};
+
+static const u8 init_NTSC_TESTPATTERN[] = {
+	0x00, 0x1E,	/* Power up all DACs and PLL */
+	0x01, 0x00,	/* SD-Only Mode */
+	0x80, 0x10,	/* SSAF Luma Filter Enabled, NTSC Mode */
+	0x82, 0xCB,	/* Step control on, pixel data valid, pedestal on, PrPb SSAF on, CVBS/YC output */
+	0x84, 0x40,	/* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
+};
+
+static const u8 init_NTSC[] = {
+	0x00, 0x1E,	/* Power up all DACs and PLL */
+	0xC3, 0x26,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC5, 0x12,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xBD, 0x19,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xBF, 0x42,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0x8C, 0x1F,	/* NTSC Subcarrier Frequency */
+	0x8D, 0x7C,	/* NTSC Subcarrier Frequency */
+	0x8E, 0xF0,	/* NTSC Subcarrier Frequency */
+	0x8F, 0x21,	/* NTSC Subcarrier Frequency */
+	0x01, 0x00,	/* SD-Only Mode */
+	0x80, 0x30,	/* SSAF Luma Filter Enabled, NTSC Mode */
+	0x82, 0x8B,	/* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
+	0x87, 0x80,	/* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
+	0x86, 0x82,
+	0x8B, 0x11,
+	0x88, 0x20,
+	0x8A, 0x0d,
+};
+
+static const u8 init_PAL[] = {
+	0x00, 0x1E,	/* Power up all DACs and PLL */
+	0xC3, 0x26,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC5, 0x12,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC2, 0x4A,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xC6, 0x5E,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xBD, 0x19,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0xBF, 0x42,	/* Program RGB->YCrCb Color Space convertion matrix */
+	0x8C, 0xCB,	/* PAL Subcarrier Frequency */
+	0x8D, 0x8A,	/* PAL Subcarrier Frequency */
+	0x8E, 0x09,	/* PAL Subcarrier Frequency */
+	0x8F, 0x2A,	/* PAL Subcarrier Frequency */
+	0x01, 0x00,	/* SD-Only Mode */
+	0x80, 0x11,	/* SSAF Luma Filter Enabled, PAL Mode */
+	0x82, 0x8B,	/* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
+	0x87, 0x80,	/* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
+	0x86, 0x82,
+	0x8B, 0x11,
+	0x88, 0x20,
+	0x8A, 0x0d,
+};
+
+static const u8 init_NTSC_YCbCr[] = {
+	0x00, 0x1E,	/* Power up all DACs and PLL */
+	0x8C, 0x1F,	/* NTSC Subcarrier Frequency */
+	0x8D, 0x7C,	/* NTSC Subcarrier Frequency */
+	0x8E, 0xF0,	/* NTSC Subcarrier Frequency */
+	0x8F, 0x21,	/* NTSC Subcarrier Frequency */
+	0x01, 0x00,	/* SD-Only Mode */
+	0x80, 0x30,	/* SSAF Luma Filter Enabled, NTSC Mode */
+	0x82, 0x8B,	/* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
+	0x87, 0x00,	/* DAC 2 = Luma, DAC 3 = Chroma */
+	0x86, 0x82,
+	0x8B, 0x11,
+	0x88, 0x08,
+	0x8A, 0x0d,
+};
+
+static const u8 init_PAL_YCbCr[] = {
+	0x00, 0x1E,	/* Power up all DACs and PLL */
+	0x8C, 0xCB,	/* PAL Subcarrier Frequency */
+	0x8D, 0x8A,	/* PAL Subcarrier Frequency */
+	0x8E, 0x09,	/* PAL Subcarrier Frequency */
+	0x8F, 0x2A,	/* PAL Subcarrier Frequency */
+	0x01, 0x00,	/* SD-Only Mode */
+	0x80, 0x11,	/* SSAF Luma Filter Enabled, PAL Mode */
+	0x82, 0x8B,	/* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
+	0x87, 0x00,	/* DAC 2 = Luma, DAC 3 = Chroma */
+	0x86, 0x82,
+	0x8B, 0x11,
+	0x88, 0x08,
+	0x8A, 0x0d,
+};
+
+static struct adv7393fb_modes known_modes[] = {
+	/* NTSC 720x480 CRT */
+	{
+		.name = "NTSC 720x480",
+		.xres = 720,
+		.yres = 480,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 240,
+		.vb1_lines = 22,
+		.vb2_lines = 23,
+		.tot_lines = 525,
+		.boeft_blank = 16,
+		.aoeft_blank = 122,
+		.adv7393_i2c_initd = init_NTSC,
+		.adv7393_i2c_initd_len = sizeof(init_NTSC)
+	},
+	/* PAL 720x480 CRT */
+	{
+		.name = "PAL 720x576",
+		.xres = 720,
+		.yres = 576,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 288,
+		.vb1_lines = 24,
+		.vb2_lines = 25,
+		.tot_lines = 625,
+		.boeft_blank = 12,
+		.aoeft_blank = 132,
+		.adv7393_i2c_initd = init_PAL,
+		.adv7393_i2c_initd_len = sizeof(init_PAL)
+	},
+	/* NTSC 640x480 CRT Experimental */
+	{
+		.name = "NTSC 640x480",
+		.xres = 640,
+		.yres = 480,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 240,
+		.vb1_lines = 22,
+		.vb2_lines = 23,
+		.tot_lines = 525,
+		.boeft_blank = 16 + 40,
+		.aoeft_blank = 122 + 40,
+		.adv7393_i2c_initd = init_NTSC,
+		.adv7393_i2c_initd_len = sizeof(init_NTSC)
+	},
+	/* PAL 640x480 CRT Experimental */
+	{
+		.name = "PAL 640x480",
+		.xres = 640,
+		.yres = 480,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 288 - 20,
+		.vb1_lines = 24 + 20,
+		.vb2_lines = 25 + 20,
+		.tot_lines = 625,
+		.boeft_blank = 12 + 40,
+		.aoeft_blank = 132 + 40,
+		.adv7393_i2c_initd = init_PAL,
+		.adv7393_i2c_initd_len = sizeof(init_PAL)
+	},
+	/* NTSC 720x480 YCbCR */
+	{
+		.name = "NTSC 720x480 YCbCR",
+		.xres = 720,
+		.yres = 480,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 240,
+		.vb1_lines = 22,
+		.vb2_lines = 23,
+		.tot_lines = 525,
+		.boeft_blank = 16,
+		.aoeft_blank = 122,
+		.adv7393_i2c_initd = init_NTSC_YCbCr,
+		.adv7393_i2c_initd_len = sizeof(init_NTSC_YCbCr)
+	},
+	/* PAL 720x480 CRT */
+	{
+		.name = "PAL 720x576 YCbCR",
+		.xres = 720,
+		.yres = 576,
+		.bpp = 16,
+		.vmode = FB_VMODE_INTERLACED,
+		.a_lines = 288,
+		.vb1_lines = 24,
+		.vb2_lines = 25,
+		.tot_lines = 625,
+		.boeft_blank = 12,
+		.aoeft_blank = 132,
+		.adv7393_i2c_initd = init_PAL_YCbCr,
+		.adv7393_i2c_initd_len = sizeof(init_PAL_YCbCr)
+	}
+};
+
+struct adv7393fb_regs {
+
+};
+
+struct adv7393fb_device {
+	struct fb_info info;	/* FB driver info record */
+
+	struct i2c_client *client;
+
+	struct dmasg *descriptor_list_head;
+	struct dmasg *vb1;
+	struct dmasg *av1;
+	struct dmasg *vb2;
+	struct dmasg *av2;
+
+	dma_addr_t dma_handle;
+
+	struct fb_info bfin_adv7393_fb;
+
+	struct adv7393fb_modes *modes;
+
+	struct adv7393fb_regs *regs;	/* Registers memory map */
+	size_t regs_len;
+	size_t fb_len;
+	size_t line_len;
+	u16 open;
+	u16 *fb_mem;		/* RGB Buffer */
+
+};
+
+#define to_adv7393fb_device(_info) \
+	  (_info ? container_of(_info, struct adv7393fb_device, info) : NULL);
+
+static int bfin_adv7393_fb_open(struct fb_info *info, int user);
+static int bfin_adv7393_fb_release(struct fb_info *info, int user);
+static int bfin_adv7393_fb_check_var(struct fb_var_screeninfo *var,
+				     struct fb_info *info);
+
+static int bfin_adv7393_fb_pan_display(struct fb_var_screeninfo *var,
+				       struct fb_info *info);
+
+static int bfin_adv7393_fb_blank(int blank, struct fb_info *info);
+
+static void bfin_config_ppi(struct adv7393fb_device *fbdev);
+static int bfin_config_dma(struct adv7393fb_device *fbdev);
+static void bfin_disable_dma(void);
+static void bfin_enable_ppi(void);
+static void bfin_disable_ppi(void);
+
+static inline int adv7393_write(struct i2c_client *client, u8 reg, u8 value);
+static inline int adv7393_read(struct i2c_client *client, u8 reg);
+static int adv7393_write_block(struct i2c_client *client, const u8 *data,
+			       unsigned int len);
+
+int bfin_adv7393_fb_cursor(struct fb_info *info, struct fb_cursor *cursor);
+static int bfin_adv7393_fb_setcolreg(u_int, u_int, u_int, u_int,
+				     u_int, struct fb_info *info);
+
+#endif