V4L/DVB (5902): Add ivtv-fb framebuffer driver.
Add the ivtv-fb framebuffer driver for cx23415 devices (currently
only the Hauppauge PVR-350 cards). This makes it possible to use
the On-Screen Display functionality of these cards, either for menus
during MPEG playback, or as a console or X display.
Signed-off-by: Kevin Thayer <nufan_wfk@yahoo.com>
Signed-off-by: Chris Kennedy <c@groovy.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: John P Harvey <john.p.harvey@btinternet.com>
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/ivtv/Kconfig b/drivers/media/video/ivtv/Kconfig
index e43beb2..399f231 100644
--- a/drivers/media/video/ivtv/Kconfig
+++ b/drivers/media/video/ivtv/Kconfig
@@ -25,3 +25,19 @@
To compile this driver as a module, choose M here: the
module will be called ivtv.
+
+config VIDEO_IVTV_FB
+ tristate "Conexant cx23415 framebuffer support"
+ depends on VIDEO_IVTV && FB && EXPERIMENTAL
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ ---help---
+ This is a framebuffer driver for the Conexant cx23415 MPEG
+ encoder/decoder.
+
+ This is used in the Hauppauge PVR-350 card. There is a driver
+ homepage at <http://www.ivtvdriver.org>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ivtv-fb.
diff --git a/drivers/media/video/ivtv/Makefile b/drivers/media/video/ivtv/Makefile
index 7e95148..90e2d12 100644
--- a/drivers/media/video/ivtv/Makefile
+++ b/drivers/media/video/ivtv/Makefile
@@ -5,3 +5,4 @@
ivtv-vbi.o ivtv-video.o ivtv-yuv.o
obj-$(CONFIG_VIDEO_IVTV) += ivtv.o
+obj-$(CONFIG_VIDEO_IVTV_FB) += ivtv-fb.o
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index 622af63..81cbaf7 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -95,8 +95,14 @@
/* Parameter declarations */
static int cardtype[IVTV_MAX_CARDS];
-static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
-static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
+static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
+static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
static int cardtype_c = 1;
static int tuner_c = 1;
@@ -1242,8 +1248,10 @@
retval = -ENODEV;
IVTV_ERR("Error %d on initialization\n", retval);
+ spin_lock(&ivtv_cards_lock);
kfree(ivtv_cards[ivtv_cards_active]);
ivtv_cards[ivtv_cards_active] = NULL;
+ spin_unlock(&ivtv_cards_lock);
return retval;
}
@@ -1346,6 +1354,7 @@
pci_unregister_driver(&ivtv_pci_driver);
+ spin_lock(&ivtv_cards_lock);
for (i = 0; i < ivtv_cards_active; i++) {
if (ivtv_cards[i] == NULL)
continue;
@@ -1354,6 +1363,7 @@
}
kfree(ivtv_cards[i]);
}
+ spin_unlock(&ivtv_cards_lock);
}
/* Note: These symbols are exported because they are used by the ivtv-fb
@@ -1361,6 +1371,7 @@
EXPORT_SYMBOL(ivtv_set_irq_mask);
EXPORT_SYMBOL(ivtv_cards_active);
EXPORT_SYMBOL(ivtv_cards);
+EXPORT_SYMBOL(ivtv_cards_lock);
EXPORT_SYMBOL(ivtv_api);
EXPORT_SYMBOL(ivtv_vapi);
EXPORT_SYMBOL(ivtv_vapi_result);
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index 8abb34a..8fe9d9c 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -89,11 +89,9 @@
extern const u32 yuv_offset[4];
-/* Maximum ivtv driver instances.
- Based on 6 PVR500s each with two PVR15s...
- TODO: make this dynamic. I believe it is only a global in order to support
- ivtv-fb. There must be a better way to do that. */
-#define IVTV_MAX_CARDS 12
+/* Maximum ivtv driver instances. Some people have a huge number of
+ capture cards, so set this to a high value. */
+#define IVTV_MAX_CARDS 32
/* Supported cards */
#define IVTV_CARD_PVR_250 0 /* WinTV PVR 250 */
@@ -303,28 +301,10 @@
#define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
#define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
-#define IVTV_FB_DEBUG(x, type, fmt, args...) \
- do { \
- if ((x) & ivtv_debug) \
- printk(KERN_INFO "ivtv%d-fb " type ": " fmt, itv->num , ## args); \
- } while (0)
-#define IVTV_FB_DEBUG_WARN(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_WARN, "warning", fmt , ## args)
-#define IVTV_FB_DEBUG_INFO(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args)
-#define IVTV_FB_DEBUG_API(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_API, "api", fmt , ## args)
-#define IVTV_FB_DEBUG_DMA(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
-#define IVTV_FB_DEBUG_IOCTL(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
-#define IVTV_FB_DEBUG_I2C(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
-#define IVTV_FB_DEBUG_IRQ(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
-#define IVTV_FB_DEBUG_DEC(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
-#define IVTV_FB_DEBUG_YUV(fmt, args...) IVTV_FB_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
-
/* Standard kernel messages */
#define IVTV_ERR(fmt, args...) printk(KERN_ERR "ivtv%d: " fmt, itv->num , ## args)
#define IVTV_WARN(fmt, args...) printk(KERN_WARNING "ivtv%d: " fmt, itv->num , ## args)
#define IVTV_INFO(fmt, args...) printk(KERN_INFO "ivtv%d: " fmt, itv->num , ## args)
-#define IVTV_FB_ERR(fmt, args...) printk(KERN_ERR "ivtv%d-fb: " fmt, itv->num , ## args)
-#define IVTV_FB_WARN(fmt, args...) printk(KERN_WARNING "ivtv%d-fb: " fmt, itv->num , ## args)
-#define IVTV_FB_INFO(fmt, args...) printk(KERN_INFO "ivtv%d-fb: " fmt, itv->num , ## args)
/* Values for IVTV_API_DEC_PLAYBACK_SPEED mpeg_frame_type_mask parameter: */
#define MPEG_FRAME_TYPE_IFRAME 1
diff --git a/drivers/media/video/ivtv/ivtv-fb.c b/drivers/media/video/ivtv/ivtv-fb.c
new file mode 100644
index 0000000..8e9bd75
--- /dev/null
+++ b/drivers/media/video/ivtv/ivtv-fb.c
@@ -0,0 +1,1215 @@
+/*
+ On Screen Display cx23415 Framebuffer driver
+
+ This module presents the cx23415 OSD (onscreen display) framebuffer memory
+ as a standard Linux /dev/fb style framebuffer device. The framebuffer has
+ support for 8,16 & 32 bpp packed pixel formats with alpha channel. In 16bpp
+ mode, there is a choice of a three color depths (12, 15 or 16 bits), but no
+ local alpha. The colorspace is selectable between rgb & yuv.
+ Depending on the TV standard configured in the ivtv module at load time,
+ the initial resolution is either 640x400 (NTSC) or 640x480 (PAL) at 8bpp.
+ Video timings are locked to ensure a vertical refresh rate of 50Hz (PAL)
+ or 59.94 (NTSC)
+
+ Copyright (c) 2003 Matt T. Yourst <yourst@yourst.com>
+
+ Derived from drivers/video/vesafb.c
+ Portions (c) 1998 Gerd Knorr <kraxel@goldbach.in-berlin.de>
+
+ 2.6 kernel port:
+ Copyright (C) 2004 Matthias Badaire
+
+ Copyright (C) 2004 Chris Kennedy <c@groovy.org>
+
+ Copyright (C) 2006 Ian Armstrong <ian@iarmst.demon.co.uk>
+
+ 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 of the License, 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; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/bitops.h>
+#include <linux/pagemap.h>
+#include <linux/matroxfb.h>
+
+#include <asm/io.h>
+#include <asm/ioctl.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+#include "ivtv-driver.h"
+#include "ivtv-queue.h"
+#include "ivtv-udma.h"
+#include "ivtv-irq.h"
+#include "ivtv-fileops.h"
+#include "ivtv-mailbox.h"
+#include "ivtv-cards.h"
+#include <media/ivtv-fb.h>
+
+/* card parameters */
+static int ivtv_fb_card_id = -1;
+static int ivtv_fb_debug = 0;
+static int osd_laced;
+static int osd_compat;
+static int osd_depth;
+static int osd_upper;
+static int osd_left;
+static int osd_yres;
+static int osd_xres;
+
+module_param(ivtv_fb_card_id, int, 0444);
+module_param_named(debug,ivtv_fb_debug, int, 0644);
+module_param(osd_laced, bool, 0444);
+module_param(osd_compat, bool, 0444);
+module_param(osd_depth, int, 0444);
+module_param(osd_upper, int, 0444);
+module_param(osd_left, int, 0444);
+module_param(osd_yres, int, 0444);
+module_param(osd_xres, int, 0444);
+
+MODULE_PARM_DESC(ivtv_fb_card_id,
+ "Only use framebuffer of the specified ivtv card (0-31)\n"
+ "\t\t\tdefault -1: initialize all available framebuffers");
+
+MODULE_PARM_DESC(debug,
+ "Debug level (bitmask). Default: errors only\n"
+ "\t\t\t(debug = 3 gives full debugging)");
+
+MODULE_PARM_DESC(osd_compat,
+ "Compatibility mode - Display size is locked (use for old X drivers)\n"
+ "\t\t\t0=off\n"
+ "\t\t\t1=on\n"
+ "\t\t\tdefault off");
+
+/* Why upper, left, xres, yres, depth, laced ? To match terminology used
+ by fbset.
+ Why start at 1 for left & upper coordinate ? Because X doesn't allow 0 */
+
+MODULE_PARM_DESC(osd_laced,
+ "Interlaced mode\n"
+ "\t\t\t0=off\n"
+ "\t\t\t1=on\n"
+ "\t\t\tdefault off");
+
+MODULE_PARM_DESC(osd_depth,
+ "Bits per pixel - 8,16,32\n"
+ "\t\t\tdefault 8");
+
+MODULE_PARM_DESC(osd_upper,
+ "Vertical start position\n"
+ "\t\t\tdefault 0 (Centered)");
+
+MODULE_PARM_DESC(osd_left,
+ "Horizontal start position\n"
+ "\t\t\tdefault 0 (Centered)");
+
+MODULE_PARM_DESC(osd_yres,
+ "Display height\n"
+ "\t\t\tdefault 480 (PAL)\n"
+ "\t\t\t 400 (NTSC)");
+
+MODULE_PARM_DESC(osd_xres,
+ "Display width\n"
+ "\t\t\tdefault 640");
+
+MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil, John Harvey, Ian Armstrong");
+MODULE_LICENSE("GPL");
+
+/* --------------------------------------------------------------------- */
+
+#define IVTV_FB_DBGFLG_WARN (1 << 0)
+#define IVTV_FB_DBGFLG_INFO (1 << 1)
+
+#define IVTV_FB_DEBUG(x, type, fmt, args...) \
+ do { \
+ if ((x) & ivtv_fb_debug) \
+ printk(KERN_INFO "ivtv-fb%d " type ": " fmt, itv->num , ## args); \
+ } while (0)
+#define IVTV_FB_DEBUG_WARN(fmt, args...) IVTV_FB_DEBUG(IVTV_FB_DBGFLG_WARN, "warning", fmt , ## args)
+#define IVTV_FB_DEBUG_INFO(fmt, args...) IVTV_FB_DEBUG(IVTV_FB_DBGFLG_INFO, "info", fmt , ## args)
+
+/* Standard kernel messages */
+#define IVTV_FB_ERR(fmt, args...) printk(KERN_ERR "ivtv-fb%d: " fmt, itv->num , ## args)
+#define IVTV_FB_WARN(fmt, args...) printk(KERN_WARNING "ivtv-fb%d: " fmt, itv->num , ## args)
+#define IVTV_FB_INFO(fmt, args...) printk(KERN_INFO "ivtv-fb%d: " fmt, itv->num , ## args)
+
+/* --------------------------------------------------------------------- */
+
+#define IVTV_OSD_MAX_WIDTH 720
+#define IVTV_OSD_MAX_HEIGHT 576
+
+#define IVTV_OSD_BPP_8 0x00
+#define IVTV_OSD_BPP_16_444 0x03
+#define IVTV_OSD_BPP_16_555 0x02
+#define IVTV_OSD_BPP_16_565 0x01
+#define IVTV_OSD_BPP_32 0x04
+
+struct osd_info {
+ /* Timing info for modes */
+ u32 pixclock;
+ u32 hlimit;
+ u32 vlimit;
+
+ /* Physical base address */
+ unsigned long video_pbase;
+ /* Relative base address (relative to start of decoder memory) */
+ u32 video_rbase;
+ /* Mapped base address */
+ volatile char __iomem *video_vbase;
+ /* Buffer size */
+ u32 video_buffer_size;
+
+#ifdef CONFIG_MTRR
+ /* video_base rounded down as required by hardware MTRRs */
+ unsigned long fb_start_aligned_physaddr;
+ /* video_base rounded up as required by hardware MTRRs */
+ unsigned long fb_end_aligned_physaddr;
+#endif
+
+ /* Store the buffer offset */
+ int set_osd_coords_x;
+ int set_osd_coords_y;
+
+ /* Current dimensions (NOT VISIBLE SIZE!) */
+ int display_width;
+ int display_height;
+ int display_byte_stride;
+
+ /* Current bits per pixel */
+ int bits_per_pixel;
+ int bytes_per_pixel;
+
+ /* Frame buffer stuff */
+ struct fb_info ivtvfb_info;
+ struct fb_var_screeninfo ivtvfb_defined;
+ struct fb_fix_screeninfo ivtvfb_fix;
+};
+
+struct ivtv_osd_coords {
+ unsigned long offset;
+ unsigned long max_offset;
+ int pixel_stride;
+ int lines;
+ int x;
+ int y;
+};
+
+/* --------------------------------------------------------------------- */
+
+/* ivtv API calls for framebuffer related support */
+
+static int ivtv_fb_get_framebuffer(struct ivtv *itv, u32 *fbbase,
+ u32 *fblength)
+{
+ u32 data[CX2341X_MBOX_MAX_DATA];
+ int rc;
+
+ rc = ivtv_vapi_result(itv, data, CX2341X_OSD_GET_FRAMEBUFFER, 0);
+ *fbbase = data[0];
+ *fblength = data[1];
+ return rc;
+}
+
+static int ivtv_fb_get_osd_coords(struct ivtv *itv,
+ struct ivtv_osd_coords *osd)
+{
+ u32 data[CX2341X_MBOX_MAX_DATA];
+
+ ivtv_vapi_result(itv, data, CX2341X_OSD_GET_OSD_COORDS, 0);
+
+ osd->offset = data[0] - itv->osd_info->video_rbase;
+ osd->max_offset = itv->osd_info->display_width * itv->osd_info->display_height * 4;
+ osd->pixel_stride = data[1];
+ osd->lines = data[2];
+ osd->x = data[3];
+ osd->y = data[4];
+ return 0;
+}
+
+static int ivtv_fb_set_osd_coords(struct ivtv *itv, const struct ivtv_osd_coords *osd)
+{
+ itv->osd_info->display_width = osd->pixel_stride;
+ itv->osd_info->display_byte_stride = osd->pixel_stride * itv->osd_info->bytes_per_pixel;
+ itv->osd_info->set_osd_coords_x += osd->x;
+ itv->osd_info->set_osd_coords_y = osd->y;
+
+ return ivtv_vapi(itv, CX2341X_OSD_SET_OSD_COORDS, 5,
+ osd->offset + itv->osd_info->video_rbase,
+ osd->pixel_stride,
+ osd->lines, osd->x, osd->y);
+}
+
+static int ivtv_fb_set_display_window(struct ivtv *itv, struct v4l2_rect *ivtv_window)
+{
+
+ int osd_height_limit = itv->is_50hz ? 576 : 480;
+
+ /* Only fail if resolution too high, otherwise fudge the start coords. */
+ if ((ivtv_window->height > osd_height_limit) || (ivtv_window->width > IVTV_OSD_MAX_WIDTH))
+ return -EINVAL;
+
+ /* Ensure we don't exceed display limits */
+ if (ivtv_window->top + ivtv_window->height > osd_height_limit) {
+ IVTV_FB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid height setting (%d,%d)\n",
+ ivtv_window->top, ivtv_window->height);
+ ivtv_window->top = osd_height_limit - ivtv_window->height;
+ }
+
+ if (ivtv_window->left + ivtv_window->width > IVTV_OSD_MAX_WIDTH) {
+ IVTV_FB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid width setting (%d,%d)\n",
+ ivtv_window->left, ivtv_window->width);
+ ivtv_window->left = IVTV_OSD_MAX_WIDTH - ivtv_window->width;
+ }
+
+ /* Set the OSD origin */
+ write_reg((ivtv_window->top << 16) | ivtv_window->left, 0x02a04);
+
+ /* How much to display */
+ write_reg(((ivtv_window->top+ivtv_window->height) << 16) | (ivtv_window->left+ivtv_window->width), 0x02a08);
+
+ /* Pass this info back the yuv handler */
+ itv->yuv_info.osd_vis_w = ivtv_window->width;
+ itv->yuv_info.osd_vis_h = ivtv_window->height;
+ itv->yuv_info.osd_x_offset = ivtv_window->left;
+ itv->yuv_info.osd_y_offset = ivtv_window->top;
+
+ return 0;
+}
+
+static int ivtv_fb_prep_dec_dma_to_device(struct ivtv *itv,
+ unsigned long ivtv_dest_addr, void __user *userbuf,
+ int size_in_bytes)
+{
+ DEFINE_WAIT(wait);
+ int ret = 0;
+ int got_sig = 0;
+
+ mutex_lock(&itv->udma.lock);
+ /* Map User DMA */
+ if (ivtv_udma_setup(itv, ivtv_dest_addr, userbuf, size_in_bytes) <= 0) {
+ mutex_unlock(&itv->udma.lock);
+ IVTV_FB_WARN("ivtvfb_prep_dec_dma_to_device, "
+ "Error with get_user_pages: %d bytes, %d pages returned\n",
+ size_in_bytes, itv->udma.page_count);
+
+ /* get_user_pages must have failed completely */
+ return -EIO;
+ }
+
+ IVTV_FB_DEBUG_INFO("ivtvfb_prep_dec_dma_to_device, %d bytes, %d pages\n",
+ size_in_bytes, itv->udma.page_count);
+
+ ivtv_udma_prepare(itv);
+ prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE);
+ /* if no UDMA is pending and no UDMA is in progress, then the DMA
+ is finished */
+ while (itv->i_flags & (IVTV_F_I_UDMA_PENDING | IVTV_F_I_UDMA)) {
+ /* don't interrupt if the DMA is in progress but break off
+ a still pending DMA. */
+ got_sig = signal_pending(current);
+ if (got_sig && test_and_clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags))
+ break;
+ got_sig = 0;
+ schedule();
+ }
+ finish_wait(&itv->dma_waitq, &wait);
+
+ /* Unmap Last DMA Xfer */
+ ivtv_udma_unmap(itv);
+ mutex_unlock(&itv->udma.lock);
+ if (got_sig) {
+ IVTV_DEBUG_INFO("User stopped OSD\n");
+ return -EINTR;
+ }
+
+ return ret;
+}
+
+static int ivtv_fb_prep_frame(struct ivtv *itv, int cmd, void __user *source, unsigned long dest_offset, int count)
+{
+ DEFINE_WAIT(wait);
+
+ /* Nothing to do */
+ if (count == 0) {
+ IVTV_FB_DEBUG_WARN("ivtv_fb_prep_frame: Nothing to do. count = 0\n");
+ return -EINVAL;
+ }
+
+ /* Check Total FB Size */
+ if ((dest_offset + count) > itv->osd_info->video_buffer_size) {
+ IVTV_FB_WARN(
+ "ivtv_fb_prep_frame: Overflowing the framebuffer %ld, "
+ "only %d available\n",
+ (dest_offset + count), itv->osd_info->video_buffer_size);
+ return -E2BIG;
+ }
+
+ /* Not fatal, but will have undesirable results */
+ if ((unsigned long)source & 3)
+ IVTV_FB_WARN ("ivtv_fb_prep_frame: Source address not 32 bit aligned (0x%08lx)\n",(unsigned long)source);
+
+ if (dest_offset & 3)
+ IVTV_FB_WARN ("ivtv_fb_prep_frame: Dest offset not 32 bit aligned (%ld)\n",dest_offset);
+
+ if (count & 3)
+ IVTV_FB_WARN ("ivtv_fb_prep_frame: Count not a multiple of 4 (%d)\n",count);
+
+ /* Check Source */
+ if (!access_ok(VERIFY_READ, source + dest_offset, count)) {
+ IVTV_FB_WARN(
+ "Invalid userspace pointer!!! 0x%08lx\n",
+ (unsigned long)source);
+
+ IVTV_FB_DEBUG_WARN(
+ "access_ok() failed for offset 0x%08lx source 0x%08lx count %d\n",
+ dest_offset, (unsigned long)source,
+ count);
+ return -EINVAL;
+ }
+
+ /* OSD Address to send DMA to */
+ dest_offset += IVTV_DEC_MEM_START + itv->osd_info->video_rbase;
+
+ /* Fill Buffers */
+ return ivtv_fb_prep_dec_dma_to_device(itv, dest_offset, source, count);
+}
+
+static int ivtvfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
+{
+ DEFINE_WAIT(wait);
+ struct ivtv *itv = (struct ivtv *)info->par;
+ int rc=0;
+
+ switch (cmd) {
+
+ case FBIOGET_VBLANK: {
+ struct fb_vblank vblank;
+ u32 trace;
+
+ vblank.flags = FB_VBLANK_HAVE_COUNT |FB_VBLANK_HAVE_VCOUNT |
+ FB_VBLANK_HAVE_VSYNC;
+ trace = read_reg (0x028c0) >> 16;
+ if (itv->is_50hz && trace > 312) trace -= 312;
+ else if (itv->is_60hz && trace > 262) trace -= 262;
+ if (trace == 1) vblank.flags |= FB_VBLANK_VSYNCING;
+ vblank.count = itv->lastVsyncFrame;
+ vblank.vcount = trace;
+ vblank.hcount = 0;
+ if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank)))
+ return -EFAULT;
+ return 0;
+ }
+
+ case FBIO_WAITFORVSYNC: {
+ prepare_to_wait(&itv->vsync_waitq, &wait, TASK_INTERRUPTIBLE);
+ if (!schedule_timeout(HZ/20)) rc = -ETIMEDOUT;
+ finish_wait (&itv->vsync_waitq, &wait);
+ return rc;
+ }
+
+ case IVTVFB_IOCTL_PREP_FRAME: {
+ struct ivtvfb_ioctl_dma_host_to_ivtv_args args;
+
+ IVTV_FB_DEBUG_INFO("IVTVFB_IOCTL_PREP_FRAME\n");
+ if (copy_from_user(&args, (void __user *)arg, sizeof(args)))
+ return -EFAULT;
+
+ return ivtv_fb_prep_frame(itv, cmd, args.source, args.dest_offset, args.count);
+ }
+
+ default:
+ IVTV_FB_ERR("Unknown IOCTL %d\n",cmd);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* Framebuffer device handling */
+
+static int ivtvfb_set_var(struct ivtv *itv, struct fb_var_screeninfo *var)
+{
+
+ struct ivtv_osd_coords ivtv_osd;
+ struct v4l2_rect ivtv_window;
+
+ IVTV_FB_DEBUG_INFO("ivtvfb_set_var\n");
+
+ /* Select color space */
+ if (var->nonstd) /* YUV */
+ write_reg (read_reg(0x02a00) | 0x0002000,0x02a00);
+ else /* RGB */
+ write_reg (read_reg(0x02a00) & ~0x0002000,0x02a00);
+
+ /* Set the color mode
+ Although rare, occasionally things go wrong. The extra mode
+ change seems to help... */
+
+ switch (var->bits_per_pixel) {
+ case 8:
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, IVTV_OSD_BPP_8);
+ break;
+ case 32:
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, IVTV_OSD_BPP_32);
+ break;
+ case 16:
+ switch (var->green.length) {
+ case 4:
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, IVTV_OSD_BPP_16_444);
+ break;
+ case 5:
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, IVTV_OSD_BPP_16_555);
+ break;
+ case 6:
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, IVTV_OSD_BPP_16_565);
+ break;
+ default:
+ IVTV_FB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n");
+ }
+ break;
+ default:
+ IVTV_FB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n");
+ }
+
+ itv->osd_info->bits_per_pixel = var->bits_per_pixel;
+ itv->osd_info->bytes_per_pixel = var->bits_per_pixel / 8;
+
+ /* Set the flicker filter */
+ switch (var->vmode & FB_VMODE_MASK) {
+ case FB_VMODE_NONINTERLACED: /* Filter on */
+ ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 1);
+ break;
+ case FB_VMODE_INTERLACED: /* Filter off */
+ ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 0);
+ break;
+ default:
+ IVTV_FB_DEBUG_WARN("ivtvfb_set_var - Invalid video mode\n");
+ }
+
+ /* Read the current osd info */
+ ivtv_fb_get_osd_coords(itv, &ivtv_osd);
+
+ /* Now set the OSD to the size we want */
+ ivtv_osd.pixel_stride = var->xres_virtual;
+ ivtv_osd.lines = var->yres_virtual;
+ ivtv_osd.x = 0;
+ ivtv_osd.y = 0;
+ ivtv_fb_set_osd_coords(itv, &ivtv_osd);
+
+ /* Can't seem to find the right API combo for this.
+ Use another function which does what we need through direct register access. */
+ ivtv_window.width = var->xres;
+ ivtv_window.height = var->yres;
+
+ /* Minimum margin cannot be 0, as X won't allow such a mode */
+ if (!var->upper_margin) var->upper_margin ++;
+ if (!var->left_margin) var->left_margin ++;
+ ivtv_window.top = var->upper_margin - 1;
+ ivtv_window.left = var->left_margin - 1;
+
+ ivtv_fb_set_display_window(itv, &ivtv_window);
+
+ /* Force update of yuv registers */
+ itv->yuv_info.yuv_forced_update = 1;
+
+ IVTV_FB_INFO("=== Display mode change ===\n");
+ IVTV_FB_INFO("Display size %dx%d (%dx%d Virtual) @ %dbpp\n",
+ var->xres,
+ var->yres,
+ var->xres_virtual,
+ var->yres_virtual,
+ var->bits_per_pixel);
+
+ IVTV_FB_INFO("Display position %d,%d\n",
+ var->left_margin,
+ var->upper_margin);
+
+ if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
+ IVTV_FB_INFO("Display filter : on\n");
+ }
+ else {
+ IVTV_FB_INFO("Display filter : off\n");
+ }
+
+ if (var->nonstd) {
+ IVTV_FB_INFO("Color space : YUV\n");
+ }
+ else {
+ IVTV_FB_INFO("Color space : RGB\n");
+ }
+
+ return 0;
+}
+
+static int ivtvfb_get_fix(struct ivtv *itv, struct fb_fix_screeninfo *fix)
+{
+ IVTV_FB_DEBUG_INFO ("ivtvfb_get_fix\n");
+ memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+ strcpy(fix->id, "cx23415 TV out");
+ fix->smem_start = itv->osd_info->video_pbase;
+ fix->smem_len = itv->osd_info->video_buffer_size;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->visual = (itv->osd_info->bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+ fix->ywrapstep = 0;
+ fix->line_length = itv->osd_info->display_byte_stride;
+ fix->accel = FB_ACCEL_NONE;
+ return 0;
+}
+
+/* Check the requested display mode, returning -EINVAL if we can't
+ handle it. */
+
+static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv)
+{
+ int osd_height_limit = itv->is_50hz ? 576 : 480;
+
+ IVTV_FB_DEBUG_INFO ("ivtvfb_check_var\n");
+
+ /* Check the bits per pixel */
+ if (osd_compat) {
+ if (var->bits_per_pixel != 32) {
+ IVTV_FB_DEBUG_WARN ("Invalid colour mode: %d\n",var->bits_per_pixel);
+ return -EINVAL;
+ }
+ }
+
+ if (var->bits_per_pixel == 8 || var->bits_per_pixel == 32) {
+ var->transp.offset = 24;
+ var->transp.length = 8;
+ var->red.offset = 16;
+ var->red.length = 8;
+ var->green.offset = 8;
+ var->green.length = 8;
+ var->blue.offset = 0;
+ var->blue.length = 8;
+ }
+ else if (var->bits_per_pixel == 16) {
+ /* To find out the true mode, check green length */
+ switch (var->green.length) {
+ case 4:
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->red.offset = 8;
+ var->red.length = 4;
+ var->green.offset = 4;
+ var->green.length = 4;
+ var->blue.offset = 0;
+ var->blue.length = 4;
+ break;
+ case 5:
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->red.offset = 10;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 5;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ break;
+ default:
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->red.offset = 11;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 6;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ break;
+ }
+ }
+ else {
+ IVTV_FB_DEBUG_WARN ("Invalid colour mode: %d\n",var->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ /* Check the resolution */
+ if (osd_compat) {
+ if (var->xres != itv->osd_info->ivtvfb_defined.xres || var->yres != itv->osd_info->ivtvfb_defined.yres ||
+ var->xres_virtual != itv->osd_info->ivtvfb_defined.xres_virtual || var->yres_virtual !=
+ itv->osd_info->ivtvfb_defined.yres_virtual) {
+ IVTV_FB_DEBUG_WARN ("Invalid resolution: %d x %d (%d x %d Virtual)\n",
+ var->xres,var->yres, var->xres_virtual,var->yres_virtual);
+ return -EINVAL;
+ }
+ }
+ else {
+ if (var->xres > IVTV_OSD_MAX_WIDTH || var->yres > osd_height_limit ) {
+ IVTV_FB_DEBUG_WARN ("Invalid resolution: %d x %d\n",
+ var->xres,var->yres);
+ return -EINVAL;
+ }
+
+ /* Max horizontal size is 1023 @ 32bpp, 2046 & 16bpp, 4092 @ 8bpp */
+ if (var->xres_virtual > 4095 / (var->bits_per_pixel / 8) ||
+ var->xres_virtual * var->yres_virtual * (var->bits_per_pixel/8) > itv->osd_info->video_buffer_size ||
+ var->xres_virtual < var->xres ||
+ var->yres_virtual < var->yres) {
+ IVTV_FB_DEBUG_WARN ("Invalid virtual resolution: %d x %d\n",
+ var->xres_virtual, var->yres_virtual);
+ return -EINVAL;
+ }
+ }
+
+ /* Some extra checks if in 8 bit mode */
+ if (var->bits_per_pixel == 8) {
+ /* Width must be a multiple of 4 */
+ if (var->xres & 3) {
+ IVTV_FB_DEBUG_WARN ("Invalid resolution for 8bpp: %d\n", var->xres);
+ return -EINVAL;
+ }
+ if (var->xres_virtual & 3) {
+ IVTV_FB_DEBUG_WARN ("Invalid virtual resolution for 8bpp: %d)\n", var->xres_virtual);
+ return -EINVAL;
+ }
+ }
+ else if (var->bits_per_pixel == 16) {
+ /* Width must be a multiple of 2 */
+ if (var->xres & 1) {
+ IVTV_FB_DEBUG_WARN ("Invalid resolution for 16bpp: %d\n", var->xres);
+ return -EINVAL;
+ }
+ if (var->xres_virtual & 1) {
+ IVTV_FB_DEBUG_WARN ("Invalid virtual resolution for 16bpp: %d)\n", var->xres_virtual);
+ return -EINVAL;
+ }
+ }
+
+ /* Now check the offsets */
+ if (var->xoffset >= var->xres_virtual || var->yoffset >= var->yres_virtual) {
+ IVTV_FB_DEBUG_WARN ("Invalid offset: %d (%d) %d (%d)\n",var->xoffset,var->xres_virtual,
+ var->yoffset,var->yres_virtual);
+ return -EINVAL;
+ }
+
+ /* Check pixel format */
+ if (var->nonstd > 1) {
+ IVTV_FB_DEBUG_WARN ("Invalid nonstd % d\n",var->nonstd);
+ return -EINVAL;
+ }
+
+ /* Check video mode */
+ if (((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) &&
+ ((var->vmode & FB_VMODE_MASK) != FB_VMODE_INTERLACED)) {
+ IVTV_FB_DEBUG_WARN ("Invalid video mode: %d\n",var->vmode & FB_VMODE_MASK);
+ return -EINVAL;
+ }
+
+ /* Check the left & upper margins
+ If the margins are too large, just center the screen
+ (enforcing margins causes too many problems) */
+
+ if (var->left_margin + var->xres > IVTV_OSD_MAX_WIDTH + 1) {
+ var->left_margin = 1 + ((IVTV_OSD_MAX_WIDTH - var->xres) / 2);
+ }
+ if (var->upper_margin + var->yres > (itv->is_50hz ? 577 : 481)) {
+ var->upper_margin = 1 + (((itv->is_50hz ? 576 : 480) - var->yres) / 2);
+ }
+
+ /* Maintain overall 'size' for a constant refresh rate */
+ var->right_margin = itv->osd_info->hlimit - var->left_margin - var->xres;
+ var->lower_margin = itv->osd_info->vlimit - var->upper_margin - var->yres;
+
+ /* Fixed sync times */
+ var->hsync_len = 24;
+ var->vsync_len = 2;
+
+ /* Non-interlaced / interlaced mode is used to switch the OSD filter
+ on or off. Adjust the clock timings to maintain a constant
+ vertical refresh rate. */
+ var->pixclock = itv->osd_info->pixclock;
+ if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
+ var->pixclock /= 2;
+
+ IVTV_FB_DEBUG_INFO ("ivtvfb_check_var - Parameters validated\n");
+
+ IVTV_FB_INFO("=== Validated display mode ===\n");
+ IVTV_FB_INFO("Display size %dx%d (%dx%d Virtual) @ %dbpp\n",
+ var->xres,
+ var->yres,
+ var->xres_virtual,
+ var->yres_virtual,
+ var->bits_per_pixel);
+
+ IVTV_FB_INFO("Display position %d,%d\n",
+ var->left_margin,
+ var->upper_margin);
+
+ if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
+ IVTV_FB_INFO("Display filter : on\n");
+ }
+ else {
+ IVTV_FB_INFO("Display filter : off\n");
+ }
+
+ if (var->nonstd) {
+ IVTV_FB_INFO("Color space : YUV\n");
+ }
+ else {
+ IVTV_FB_INFO("Color space : RGB\n");
+ }
+ return 0;
+}
+
+static int ivtvfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct ivtv *itv = (struct ivtv *) info->par;
+ IVTV_FB_DEBUG_INFO ("ivtvfb_check_var\n");
+ return _ivtvfb_check_var (var,itv);
+}
+
+static int ivtvfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ u32 osd_pan_index;
+ struct ivtv *itv = (struct ivtv *) info->par;
+
+ osd_pan_index = (var->xoffset + (var->yoffset * var->xres_virtual))*var->bits_per_pixel/8;
+ write_reg (osd_pan_index,0x02A0C);
+
+ /* Pass this info back the yuv handler */
+ itv->yuv_info.osd_x_pan = var->xoffset;
+ itv->yuv_info.osd_y_pan = var->yoffset;
+ /* Force update of yuv registers */
+ itv->yuv_info.yuv_forced_update = 1;
+ return 0;
+}
+
+static int ivtvfb_set_par(struct fb_info *info)
+{
+ int rc = 0;
+ struct ivtv *itv = (struct ivtv *) info->par;
+
+ IVTV_FB_DEBUG_INFO ("ivtvfb_set_par\n");
+
+ rc = ivtvfb_set_var(itv, &info->var);
+ ivtvfb_pan_display(&info->var, info);
+ ivtvfb_get_fix (itv, &info->fix);
+ return rc;
+}
+
+static int ivtvfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ u32 color, *palette;
+ struct ivtv *itv = (struct ivtv *) info->par;
+
+ if (regno >= info->cmap.len)
+ return -EINVAL;
+
+ color = ((transp & 0xFF00) << 16) |((red & 0xFF00) << 8) | (green & 0xFF00) | ((blue & 0xFF00) >> 8);
+ if (info->var.bits_per_pixel <= 8) {
+ write_reg(regno, 0x02a30);
+ write_reg(color, 0x02a34);
+ }
+ else {
+ if (regno >= 16)
+ return -EINVAL;
+
+ palette = info->pseudo_palette;
+ if (info->var.bits_per_pixel == 16) {
+ switch (info->var.green.length) {
+ case 4:
+ color = ((red & 0xf000) >> 4) |
+ ((green & 0xf000) >> 8) |
+ ((blue & 0xf000) >> 12);
+ break;
+ case 5:
+ color = ((red & 0xf800) >> 1) |
+ ((green & 0xf800) >> 6) |
+ ((blue & 0xf800) >> 11);
+ break;
+ case 6:
+ color = (red & 0xf800 ) |
+ ((green & 0xfc00) >> 5) |
+ ((blue & 0xf800) >> 11);
+ break;
+ }
+ }
+ palette[regno] = color;
+ }
+
+ return 0;
+}
+
+/* We don't really support blanking. All this does is enable or
+ disable the OSD. */
+static int ivtvfb_blank(int blank_mode, struct fb_info *info)
+{
+ struct ivtv *itv = (struct ivtv *)info->par;
+
+ IVTV_FB_DEBUG_INFO ("Set blanking mode : %d\n",blank_mode);
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 1);
+ break;
+ case FB_BLANK_NORMAL:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_POWERDOWN:
+ ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0);
+ break;
+ }
+ return 0;
+}
+
+static struct fb_ops ivtvfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = ivtvfb_check_var,
+ .fb_set_par = ivtvfb_set_par,
+ .fb_setcolreg = ivtvfb_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = NULL,
+ .fb_ioctl = ivtvfb_ioctl,
+ .fb_pan_display = ivtvfb_pan_display,
+ .fb_blank = ivtvfb_blank,
+};
+
+/* Initialization */
+
+
+/* Setup our initial video mode */
+static int ivtvfb_init_vidmode(struct ivtv *itv)
+{
+ int max_height;
+ struct v4l2_rect start_window;
+
+ /* Set base references for mode calcs. */
+ if (itv->is_50hz) {
+ itv->osd_info->pixclock = 84316;
+ itv->osd_info->hlimit = 776;
+ itv->osd_info->vlimit = 591;
+ }
+ else {
+ itv->osd_info->pixclock = 83926;
+ itv->osd_info->hlimit = 776;
+ itv->osd_info->vlimit = 495;
+ }
+
+ /* Color mode */
+
+ if (osd_compat) osd_depth = 32;
+ if (osd_depth != 8 && osd_depth != 16 && osd_depth != 32) osd_depth = 8;
+ itv->osd_info->bits_per_pixel = osd_depth;
+ itv->osd_info->bytes_per_pixel = itv->osd_info->bits_per_pixel / 8;
+
+ /* Horizontal size & position */
+
+ if (osd_xres > 720) osd_xres = 720;
+
+ /* Must be a multiple of 4 for 8bpp & 2 for 16bpp */
+ if (osd_depth == 8)
+ osd_xres &= ~3;
+ else if (osd_depth == 16)
+ osd_xres &= ~1;
+
+ if (osd_xres)
+ start_window.width = osd_xres;
+ else
+ start_window.width = osd_compat ? 720: 640;
+
+ /* Check horizontal start (osd_left). */
+ if (osd_left && osd_left + start_window.width > 721) {
+ IVTV_FB_ERR ("Invalid osd_left - assuming default\n");
+ osd_left = 0;
+ }
+
+ /* Hardware coords start at 0, user coords start at 1. */
+ osd_left --;
+
+ start_window.left =
+ osd_left >= 0 ? osd_left : ((IVTV_OSD_MAX_WIDTH - start_window.width) / 2);
+
+ itv->osd_info->display_byte_stride =
+ start_window.width * itv->osd_info->bytes_per_pixel;
+
+ /* Vertical size & position */
+
+ max_height = itv->is_50hz ? 576 : 480;
+
+ if ( osd_yres > max_height) osd_yres = max_height;
+
+ if (osd_yres)
+ start_window.height = osd_yres;
+ else {
+ if (itv->is_50hz)
+ start_window.height = osd_compat ? max_height : 480;
+ else
+ start_window.height = osd_compat ? max_height : 400;
+ }
+
+ /* Check vertical start (osd_upper). */
+ if (osd_upper + start_window.height > max_height + 1) {
+ IVTV_FB_ERR ("Invalid osd_upper - assuming default\n");
+ osd_upper = 0;
+ }
+
+ /* Hardware coords start at 0, user coords start at 1. */
+ osd_upper --;
+
+ start_window.top = osd_upper >= 0 ? osd_upper : ((max_height - start_window.height) / 2);
+
+ itv->osd_info->display_width = start_window.width;
+ itv->osd_info->display_height = start_window.height;
+
+ /* Generate a valid fb_var_screeninfo */
+
+ itv->osd_info->ivtvfb_defined.xres = itv->osd_info->display_width;
+ itv->osd_info->ivtvfb_defined.yres = itv->osd_info->display_height;
+ itv->osd_info->ivtvfb_defined.xres_virtual = itv->osd_info->display_width;
+ itv->osd_info->ivtvfb_defined.yres_virtual = itv->osd_info->display_height;
+ itv->osd_info->ivtvfb_defined.bits_per_pixel = itv->osd_info->bits_per_pixel;
+ itv->osd_info->ivtvfb_defined.vmode = (osd_laced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED);
+ itv->osd_info->ivtvfb_defined.left_margin = start_window.left + 1;
+ itv->osd_info->ivtvfb_defined.upper_margin = start_window.top + 1;
+ itv->osd_info->ivtvfb_defined.accel_flags = FB_ACCEL_NONE;
+ itv->osd_info->ivtvfb_defined.nonstd = 0;
+
+ /* We've filled in the most data, let the usual mode check
+ routine fill in the rest. */
+ _ivtvfb_check_var (&itv->osd_info->ivtvfb_defined,itv);
+
+ /* Generate valid fb_fix_screeninfo */
+
+ ivtvfb_get_fix(itv,&itv->osd_info->ivtvfb_fix);
+
+ /* Generate valid fb_info */
+
+ itv->osd_info->ivtvfb_info.node = -1;
+ itv->osd_info->ivtvfb_info.flags = FBINFO_FLAG_DEFAULT;
+ itv->osd_info->ivtvfb_info.fbops = &ivtvfb_ops;
+ itv->osd_info->ivtvfb_info.par = itv;
+ itv->osd_info->ivtvfb_info.var = itv->osd_info->ivtvfb_defined;
+ itv->osd_info->ivtvfb_info.fix = itv->osd_info->ivtvfb_fix;
+ itv->osd_info->ivtvfb_info.screen_base = (u8 __iomem *)itv->osd_info->video_vbase;
+ itv->osd_info->ivtvfb_info.fbops = &ivtvfb_ops;
+
+ /* Supply some monitor specs. Bogus values will do for now */
+ itv->osd_info->ivtvfb_info.monspecs.hfmin = 8000;
+ itv->osd_info->ivtvfb_info.monspecs.hfmax = 70000;
+ itv->osd_info->ivtvfb_info.monspecs.vfmin = 10;
+ itv->osd_info->ivtvfb_info.monspecs.vfmax = 100;
+
+ /* Allocate color map */
+ if (fb_alloc_cmap(&itv->osd_info->ivtvfb_info.cmap, 256, 1)) {
+ IVTV_FB_ERR ("abort, unable to alloc cmap\n");
+ return -ENOMEM;
+ }
+
+ /* Allocate the pseudo palette */
+ itv->osd_info->ivtvfb_info.pseudo_palette = kmalloc(sizeof (u32) * 16, GFP_KERNEL);
+
+ if (!itv->osd_info->ivtvfb_info.pseudo_palette) {
+ IVTV_FB_ERR ("abort, unable to alloc pseudo pallete\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/* Find OSD buffer base & size. Add to mtrr. Zero osd buffer. */
+
+static int ivtvfb_init_io(struct ivtv *itv)
+{
+ ivtv_fb_get_framebuffer(itv, &itv->osd_info->video_rbase, &itv->osd_info->video_buffer_size);
+
+ /* The osd buffer size depends on the number of video buffers allocated
+ on the PVR350 itself. For now we'll hardcode the smallest osd buffer
+ size to prevent any overlap. */
+ itv->osd_info->video_buffer_size = 1704960;
+
+ itv->osd_info->video_pbase = itv->base_addr + IVTV_DECODER_OFFSET + itv->osd_info->video_rbase;
+ itv->osd_info->video_vbase = itv->dec_mem + itv->osd_info->video_rbase;
+
+ if (!itv->osd_info->video_vbase) {
+ IVTV_FB_ERR("abort, video memory 0x%x @ 0x%lx isn't mapped!\n",
+ itv->osd_info->video_buffer_size, itv->osd_info->video_pbase);
+ return -EIO;
+ }
+
+ IVTV_FB_INFO("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
+ itv->osd_info->video_pbase, itv->osd_info->video_vbase,
+ itv->osd_info->video_buffer_size / 1024);
+
+#ifdef CONFIG_MTRR
+ {
+ /* Find the largest power of two that maps the whole buffer */
+ int size_shift = 31;
+
+ while (!(itv->osd_info->video_buffer_size & (1 << size_shift))) {
+ size_shift--;
+ }
+ size_shift++;
+ itv->osd_info->fb_start_aligned_physaddr = itv->osd_info->video_pbase & ~((1 << size_shift) - 1);
+ itv->osd_info->fb_end_aligned_physaddr = itv->osd_info->video_pbase + itv->osd_info->video_buffer_size;
+ itv->osd_info->fb_end_aligned_physaddr += (1 << size_shift) - 1;
+ itv->osd_info->fb_end_aligned_physaddr &= ~((1 << size_shift) - 1);
+ if (mtrr_add(itv->osd_info->fb_start_aligned_physaddr,
+ itv->osd_info->fb_end_aligned_physaddr - itv->osd_info->fb_start_aligned_physaddr,
+ MTRR_TYPE_WRCOMB, 1) < 0) {
+ IVTV_FB_ERR("warning: mtrr_add() failed to add write combining region 0x%08x-0x%08x\n",
+ (unsigned int)itv->osd_info->fb_start_aligned_physaddr,
+ (unsigned int)itv->osd_info->fb_end_aligned_physaddr);
+ }
+ }
+#endif /* CONFIG_MTRR */
+
+ /* Blank the entire osd. */
+ memset_io(itv->osd_info->video_vbase, 0, itv->osd_info->video_buffer_size);
+
+ return 0;
+}
+
+/* Release any memory we've grabbed & remove mtrr entry */
+static void ivtvfb_release_buffers (struct ivtv *itv)
+{
+ /* Release cmap */
+ if (itv->osd_info->ivtvfb_info.cmap.len);
+ fb_dealloc_cmap(&itv->osd_info->ivtvfb_info.cmap);
+
+ /* Release pseudo palette */
+ if (itv->osd_info->ivtvfb_info.pseudo_palette)
+ kfree(itv->osd_info->ivtvfb_info.pseudo_palette);
+
+#ifdef CONFIG_MTRR
+ mtrr_del(-1, itv->osd_info->fb_start_aligned_physaddr,
+ (itv->osd_info->fb_end_aligned_physaddr - itv->osd_info->fb_start_aligned_physaddr));
+#endif /* CONFIG_MTRR */
+
+ kfree(itv->osd_info);
+ itv->osd_info = NULL;
+}
+
+/* Initialize the specified card */
+
+static int ivtvfb_init_card (struct ivtv *itv)
+{
+ int rc;
+
+ if (itv->osd_info) {
+ IVTV_FB_ERR("Card %d already initialised\n", ivtv_fb_card_id);
+ return -EBUSY;
+ }
+
+ itv->osd_info = kzalloc(sizeof(struct osd_info), GFP_ATOMIC);
+ if (itv->osd_info == 0) {
+ IVTV_FB_ERR("Failed to allocate memory for osd_info\n");
+ return -ENOMEM;
+ }
+
+ /* Find & setup the OSD buffer */
+ if ((rc = ivtvfb_init_io (itv)))
+ return rc;
+
+ /* Set the startup video mode information */
+ if ((rc = ivtvfb_init_vidmode (itv))) {
+ ivtvfb_release_buffers(itv);
+ return rc;
+ }
+
+ /* Register the framebuffer */
+ if (register_framebuffer(&itv->osd_info->ivtvfb_info) < 0) {
+ ivtvfb_release_buffers(itv);
+ return -EINVAL;
+ }
+
+ itv->osd_video_pbase = itv->osd_info->video_pbase;
+
+ /* Set the card to the requested mode */
+ ivtvfb_set_par(&itv->osd_info->ivtvfb_info);
+
+ /* Set color 0 to black */
+ write_reg(0, 0x02a30);
+ write_reg(0, 0x02a34);
+
+ /* Enable the osd */
+ ivtvfb_blank(FB_BLANK_UNBLANK, &itv->osd_info->ivtvfb_info);
+
+ /* Note if we're running in compatibility mode */
+ if (osd_compat)
+ IVTV_FB_INFO("Running in compatibility mode. Display resize & mode change disabled\n");
+
+ /* Allocate DMA */
+ ivtv_udma_alloc(itv);
+ return 0;
+
+}
+
+static int __init ivtvfb_init(void)
+{
+ struct ivtv *itv;
+ int i, registered = 0;
+
+ if (ivtv_fb_card_id < -1 || ivtv_fb_card_id >= IVTV_MAX_CARDS) {
+ printk(KERN_ERR "ivtv-fb: ivtv_fb_card_id parameter is out of range (valid range: -1 - %d)\n",
+ IVTV_MAX_CARDS - 1);
+ return -EINVAL;
+ }
+
+ /* Locate & initialise all cards supporting an OSD. */
+ for (i = 0; i < ivtv_cards_active; i++) {
+ if (ivtv_fb_card_id != -1 && i != ivtv_fb_card_id)
+ continue;
+ itv = ivtv_cards[i];
+ if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
+ if (ivtvfb_init_card(itv) == 0) {
+ IVTV_FB_INFO("Framebuffer registered on ivtv card id %d\n", i);
+ registered++;
+ }
+ }
+ }
+ if (!registered) {
+ printk(KERN_ERR "ivtv-fb: no cards found");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static void ivtvfb_cleanup(void)
+{
+ struct ivtv *itv;
+ int i;
+
+ printk(KERN_INFO "ivtv-fb: Unloading framebuffer module\n");
+
+ for (i = 0; i < ivtv_cards_active; i++) {
+ itv = ivtv_cards[i];
+ if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) && itv->osd_info) {
+ IVTV_FB_DEBUG_INFO("Unregister framebuffer %d\n", i);
+ ivtvfb_blank(FB_BLANK_POWERDOWN, &itv->osd_info->ivtvfb_info);
+ unregister_framebuffer(&itv->osd_info->ivtvfb_info);
+ ivtvfb_release_buffers(itv);
+ itv->osd_video_pbase = 0;
+ }
+ }
+}
+
+module_init(ivtvfb_init);
+module_exit(ivtvfb_cleanup);
diff --git a/include/media/ivtv-fb.h b/include/media/ivtv-fb.h
new file mode 100644
index 0000000..902b2f3
--- /dev/null
+++ b/include/media/ivtv-fb.h
@@ -0,0 +1,35 @@
+/*
+ On Screen Display cx23415 Framebuffer driver
+
+ Copyright (C) 2006 Ian Armstrong <ian@iarmst.demon.co.uk>
+
+ 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 of the License, 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; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _LINUX_IVTV_FB_H
+#define _LINUX_IVTV_FB_H
+
+/* Framebuffer external API */
+
+struct ivtvfb_ioctl_dma_host_to_ivtv_args {
+ void __user *source;
+ unsigned long dest_offset;
+ int count;
+};
+
+/* Framebuffer ioctls should use the range 1 - 28 */
+#define IVTVFB_IOCTL_PREP_FRAME _IOW('@', 3, struct ivtvfb_ioctl_dma_host_to_ivtv_args)
+
+#endif
