[PATCH] fbdev: Add framebuffer and display update module support for pnx4008

Add support for Display Update Module and RGB framebuffer device on Philips
PNX4008 ARM board.

Signed-off-by: Grigory Tolstolytkin <gtolstolytkin@ru.mvista.com>
Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 139 insertions, 0 deletions

diff --git a/drivers/video/pnx4008/sdum.h b/drivers/video/pnx4008/sdum.h
new file mode 100644
index 000000000000..e8c5dcdd8813
--- /dev/null
+++ b/drivers/video/pnx4008/sdum.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2005 Philips Semiconductors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA, or http://www.gnu.org/licenses/gpl.html
+*/
+
+#define MAX_DUM_CHANNELS	64
+
+#define RGB_MEM_WINDOW(x) (0x10000000 + (x)*0x00100000)
+
+#define QCIF_OFFSET(x) (((x) == 0) ? 0x00000: ((x) == 1) ? 0x30000: -1)
+#define CIF_OFFSET(x)  (((x) == 0) ? 0x00000: ((x) == 1) ? 0x60000: -1)
+
+#define CTRL_SETDIRTY	 	(0x00000001)
+#define CONF_DIRTYENABLE	(0x00000020)
+#define CONF_SYNCENABLE		(0x00000004)
+
+#define DIRTY_ENABLED(conf)	((conf) & 0x0020)
+#define SYNC_ENABLED(conf) 	((conf) & 0x0004)
+
+/* Display 1 & 2 Write Timing Configuration */
+#define PNX4008_DUM_WT_CFG		0x00372000
+
+/* Display 1 & 2 Read Timing Configuration */
+#define PNX4008_DUM_RT_CFG		0x00003A47
+
+/* DUM Transit State Timing Configuration */
+#define PNX4008_DUM_T_CFG		0x1D	/* 29 HCLK cycles */
+
+/* DUM Sync count clock divider */
+#define PNX4008_DUM_CLK_DIV		0x02DD
+
+/* Memory size for framebuffer, allocated through dma_alloc_writecombine().
+ * Must be PAGE aligned
+ */
+#define FB_DMA_SIZE (PAGE_ALIGN(SZ_1M + PAGE_SIZE))
+
+#define OFFSET_RGBBUFFER (0xB0000)
+#define OFFSET_YUVBUFFER (0x00000)
+
+#define YUVBUFFER (lcd_video_start + OFFSET_YUVBUFFER)
+#define RGBBUFFER (lcd_video_start + OFFSET_RGBBUFFER)
+
+#define CMDSTRING_BASEADDR	(0x00C000)	/* iram */
+#define BYTES_PER_CMDSTRING	(0x80)
+#define NR_OF_CMDSTRINGS	(64)
+
+#define MAX_NR_PRESTRINGS (0x40)
+#define MAX_NR_POSTSTRINGS (0x40)
+
+/* various mask definitions */
+#define DUM_CLK_ENABLE 0x01
+#define DUM_CLK_DISABLE 0
+#define DUM_DECODE_MASK 0x1FFFFFFF
+#define DUM_CHANNEL_CFG_MASK 0x01FF
+#define DUM_CHANNEL_CFG_SYNC_MASK 0xFFFE00FF
+#define DUM_CHANNEL_CFG_SYNC_MASK_SET 0x0CA00
+
+#define SDUM_RETURNVAL_BASE (0x500)
+
+#define CONF_SYNC_OFF		(0x602)
+#define CONF_SYNC_ON		(0x603)
+
+#define CONF_DIRTYDETECTION_OFF	(0x600)
+#define CONF_DIRTYDETECTION_ON	(0x601)
+
+/* Set the corresponding bit. */
+#define BIT(n) (0x1U << (n))
+
+struct dumchannel_uf {
+	int channelnr;
+	u32 *dirty;
+	u32 *source;
+	u32 x_offset;
+	u32 y_offset;
+	u32 width;
+	u32 height;
+};
+
+enum {
+	FB_TYPE_YUV,
+	FB_TYPE_RGB
+};
+
+struct cmdstring {
+	int channelnr;
+	uint16_t prestringlen;
+	uint16_t poststringlen;
+	uint16_t format;
+	uint16_t reserved;
+	uint16_t startaddr_low;
+	uint16_t startaddr_high;
+	uint16_t pixdatlen_low;
+	uint16_t pixdatlen_high;
+	u32 precmd[MAX_NR_PRESTRINGS];
+	u32 postcmd[MAX_NR_POSTSTRINGS];
+
+};
+
+struct dumchannel {
+	int channelnr;
+	int dum_ch_min;
+	int dum_ch_max;
+	int dum_ch_conf;
+	int dum_ch_stat;
+	int dum_ch_ctrl;
+};
+
+int pnx4008_alloc_dum_channel(int dev_id);
+int pnx4008_free_dum_channel(int channr, int dev_id);
+
+int pnx4008_get_dum_channel_uf(struct dumchannel_uf *pChan_uf, int dev_id);
+int pnx4008_put_dum_channel_uf(struct dumchannel_uf chan_uf, int dev_id);
+
+int pnx4008_set_dum_channel_sync(int channr, int val, int dev_id);
+int pnx4008_set_dum_channel_dirty_detect(int channr, int val, int dev_id);
+
+int pnx4008_force_dum_update_channel(int channr, int dev_id);
+
+int pnx4008_get_dum_channel_config(int channr, int dev_id);
+
+int pnx4008_sdum_mmap(struct fb_info *info, struct vm_area_struct *vma, struct device *dev);
+int pnx4008_set_dum_exit_notification(int dev_id);
+
+int pnx4008_get_fb_addresses(int fb_type, void **virt_addr,
+			     dma_addr_t * phys_addr, int *fb_length);