The convention for framebuffer devices is to call them xxxfb, not xxx-fb.
Conform to this. Also move the ivtvfb.h header to include/linux: it is a
public header. The FBIO_WAITFORVSYNC ioctl is now also defined in the
ivtvfb.h header, no more need to include matroxfb.h for just this ioctl.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
To compile this driver as a module, choose M here: the
module will be called ivtv.
-config VIDEO_IVTV_FB
+config VIDEO_FB_IVTV
tristate "Conexant cx23415 framebuffer support"
depends on VIDEO_IVTV && FB && EXPERIMENTAL
select FB_CFB_FILLRECT
ivtv-vbi.o ivtv-yuv.o
obj-$(CONFIG_VIDEO_IVTV) += ivtv.o
-obj-$(CONFIG_VIDEO_IVTV_FB) += ivtv-fb.o
+obj-$(CONFIG_VIDEO_FB_IVTV) += ivtvfb.o
+++ /dev/null
-/*
- 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 <media/ivtv-fb.h>
-
-#include <asm/io.h>
-#include <asm/ioctl.h>
-
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
-#include "ivtv-driver.h"
-#include "ivtv-udma.h"
-#include "ivtv-mailbox.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 {
- /* 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
-
- /* Current osd mode */
- int osd_mode;
-
- /* 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)
-{
- struct osd_info *oi = itv->osd_info;
- u32 data[CX2341X_MBOX_MAX_DATA];
-
- ivtv_vapi_result(itv, data, CX2341X_OSD_GET_OSD_COORDS, 0);
-
- osd->offset = data[0] - oi->video_rbase;
- osd->max_offset = oi->display_width * oi->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)
-{
- struct osd_info *oi = itv->osd_info;
-
- oi->display_width = osd->pixel_stride;
- oi->display_byte_stride = osd->pixel_stride * oi->bytes_per_pixel;
- oi->set_osd_coords_x += osd->x;
- oi->set_osd_coords_y = osd->y;
-
- return ivtv_vapi(itv, CX2341X_OSD_SET_OSD_COORDS, 5,
- osd->offset + oi->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);
- struct osd_info *oi = itv->osd_info;
-
- /* 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) > oi->video_buffer_size) {
- IVTV_FB_WARN("ivtv_fb_prep_frame: Overflowing the framebuffer %ld, only %d available\n",
- dest_offset + count, oi->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_DECODER_OFFSET + oi->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->last_vsync_field;
- 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(msecs_to_jiffies(50))) rc = -ETIMEDOUT;
- finish_wait(&itv->vsync_waitq, &wait);
- return rc;
-
- case IVTVFB_IOC_DMA_FRAME: {
- struct ivtvfb_dma_frame args;
-
- IVTV_FB_DEBUG_INFO("IVTVFB_IOC_DMA_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_DEBUG_INFO("Unknown ioctl %08x\n", cmd);
- return -EINVAL;
- }
- return 0;
-}
-
-/* Framebuffer device handling */
-
-static int ivtvfb_set_var(struct ivtv *itv, struct fb_var_screeninfo *var)
-{
- struct osd_info *oi = itv->osd_info;
- struct ivtv_osd_coords ivtv_osd;
- struct v4l2_rect ivtv_window;
- int osd_mode = -1;
-
- 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 */
- switch (var->bits_per_pixel) {
- case 8:
- osd_mode = IVTV_OSD_BPP_8;
- break;
- case 32:
- osd_mode = IVTV_OSD_BPP_32;
- break;
- case 16:
- switch (var->green.length) {
- case 4:
- osd_mode = IVTV_OSD_BPP_16_444;
- break;
- case 5:
- osd_mode = IVTV_OSD_BPP_16_555;
- break;
- case 6:
- osd_mode = 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");
- }
-
- /* Change osd mode if needed.
- Although rare, things can go wrong. The extra mode
- change seems to help... */
- if (osd_mode != -1 && osd_mode != oi->osd_mode) {
- ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
- ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, osd_mode);
- oi->osd_mode = osd_mode;
- }
-
- oi->bits_per_pixel = var->bits_per_pixel;
- oi->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_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n",
- var->xres, var->yres,
- var->xres_virtual, var->yres_virtual,
- var->bits_per_pixel);
-
- IVTV_FB_DEBUG_INFO("Display position: %d, %d\n",
- var->left_margin, var->upper_margin);
-
- IVTV_FB_DEBUG_INFO("Display filter: %s\n",
- (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off");
- IVTV_FB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB");
-
- return 0;
-}
-
-static int ivtvfb_get_fix(struct ivtv *itv, struct fb_fix_screeninfo *fix)
-{
- struct osd_info *oi = itv->osd_info;
-
- 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 = oi->video_pbase;
- fix->smem_len = oi->video_buffer_size;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->visual = (oi->bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
- fix->xpanstep = 1;
- fix->ypanstep = 1;
- fix->ywrapstep = 0;
- fix->line_length = oi->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)
-{
- struct osd_info *oi = itv->osd_info;
- int osd_height_limit;
- u32 pixclock, hlimit, vlimit;
-
- IVTV_FB_DEBUG_INFO("ivtvfb_check_var\n");
-
- /* Set base references for mode calcs. */
- if (itv->is_50hz) {
- pixclock = 84316;
- hlimit = 776;
- vlimit = 591;
- osd_height_limit = 576;
- }
- else {
- pixclock = 83926;
- hlimit = 776;
- vlimit = 495;
- osd_height_limit = 480;
- }
-
- /* 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->red.offset = 8;
- var->red.length = 4;
- var->green.offset = 4;
- var->green.length = 4;
- var->blue.offset = 0;
- var->blue.length = 4;
- var->transp.offset = 12;
- var->transp.length = 1;
- break;
- case 5:
- var->red.offset = 10;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 5;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.offset = 15;
- var->transp.length = 1;
- break;
- default:
- var->red.offset = 11;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 6;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.offset = 0;
- var->transp.length = 0;
- 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 != oi->ivtvfb_defined.xres ||
- var->yres != oi->ivtvfb_defined.yres ||
- var->xres_virtual != oi->ivtvfb_defined.xres_virtual ||
- var->yres_virtual != oi->ivtvfb_defined.yres_virtual) {
- IVTV_FB_DEBUG_WARN("Invalid resolution: %dx%d (virtual %dx%d)\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: %dx%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) > oi->video_buffer_size ||
- var->xres_virtual < var->xres ||
- var->yres_virtual < var->yres) {
- IVTV_FB_DEBUG_WARN("Invalid virtual resolution: %dx%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 = hlimit - var->left_margin - var->xres;
- var->lower_margin = 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. */
- if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
- var->pixclock = pixclock / 2;
- else
- var->pixclock = pixclock;
-
- IVTV_FB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n",
- var->xres, var->yres,
- var->xres_virtual, var->yres_virtual,
- var->bits_per_pixel);
-
- IVTV_FB_DEBUG_INFO("Display position: %d, %d\n",
- var->left_margin, var->upper_margin);
-
- IVTV_FB_DEBUG_INFO("Display filter: %s\n",
- (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off");
- IVTV_FB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB");
- 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);
- return 0;
- }
- 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)
-{
- struct osd_info *oi = itv->osd_info;
- struct v4l2_rect start_window;
- int max_height;
-
- /* Color mode */
-
- if (osd_compat) osd_depth = 32;
- if (osd_depth != 8 && osd_depth != 16 && osd_depth != 32) osd_depth = 8;
- oi->bits_per_pixel = osd_depth;
- oi->bytes_per_pixel = oi->bits_per_pixel / 8;
-
- /* Invalidate current osd mode to force a mode switch later */
- oi->osd_mode = -1;
-
- /* 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);
-
- oi->display_byte_stride =
- start_window.width * oi->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
- start_window.height = osd_compat ? max_height : (itv->is_50hz ? 480 : 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);
-
- oi->display_width = start_window.width;
- oi->display_height = start_window.height;
-
- /* Generate a valid fb_var_screeninfo */
-
- oi->ivtvfb_defined.xres = oi->display_width;
- oi->ivtvfb_defined.yres = oi->display_height;
- oi->ivtvfb_defined.xres_virtual = oi->display_width;
- oi->ivtvfb_defined.yres_virtual = oi->display_height;
- oi->ivtvfb_defined.bits_per_pixel = oi->bits_per_pixel;
- oi->ivtvfb_defined.vmode = (osd_laced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED);
- oi->ivtvfb_defined.left_margin = start_window.left + 1;
- oi->ivtvfb_defined.upper_margin = start_window.top + 1;
- oi->ivtvfb_defined.accel_flags = FB_ACCEL_NONE;
- oi->ivtvfb_defined.nonstd = 0;
-
- /* We've filled in the most data, let the usual mode check
- routine fill in the rest. */
- _ivtvfb_check_var(&oi->ivtvfb_defined, itv);
-
- /* Generate valid fb_fix_screeninfo */
-
- ivtvfb_get_fix(itv, &oi->ivtvfb_fix);
-
- /* Generate valid fb_info */
-
- oi->ivtvfb_info.node = -1;
- oi->ivtvfb_info.flags = FBINFO_FLAG_DEFAULT;
- oi->ivtvfb_info.fbops = &ivtvfb_ops;
- oi->ivtvfb_info.par = itv;
- oi->ivtvfb_info.var = oi->ivtvfb_defined;
- oi->ivtvfb_info.fix = oi->ivtvfb_fix;
- oi->ivtvfb_info.screen_base = (u8 __iomem *)oi->video_vbase;
- oi->ivtvfb_info.fbops = &ivtvfb_ops;
-
- /* Supply some monitor specs. Bogus values will do for now */
- oi->ivtvfb_info.monspecs.hfmin = 8000;
- oi->ivtvfb_info.monspecs.hfmax = 70000;
- oi->ivtvfb_info.monspecs.vfmin = 10;
- oi->ivtvfb_info.monspecs.vfmax = 100;
-
- /* Allocate color map */
- if (fb_alloc_cmap(&oi->ivtvfb_info.cmap, 256, 1)) {
- IVTV_FB_ERR("abort, unable to alloc cmap\n");
- return -ENOMEM;
- }
-
- /* Allocate the pseudo palette */
- oi->ivtvfb_info.pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
-
- if (!oi->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)
-{
- struct osd_info *oi = itv->osd_info;
-
- mutex_lock(&itv->serialize_lock);
- if (ivtv_init_on_first_open(itv)) {
- mutex_unlock(&itv->serialize_lock);
- IVTV_FB_ERR("Failed to initialize ivtv\n");
- return -ENXIO;
- }
- mutex_unlock(&itv->serialize_lock);
-
- ivtv_fb_get_framebuffer(itv, &oi->video_rbase, &oi->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. */
- oi->video_buffer_size = 1704960;
-
- oi->video_pbase = itv->base_addr + IVTV_DECODER_OFFSET + oi->video_rbase;
- oi->video_vbase = itv->dec_mem + oi->video_rbase;
-
- if (!oi->video_vbase) {
- IVTV_FB_ERR("abort, video memory 0x%x @ 0x%lx isn't mapped!\n",
- oi->video_buffer_size, oi->video_pbase);
- return -EIO;
- }
-
- IVTV_FB_INFO("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
- oi->video_pbase, oi->video_vbase,
- oi->video_buffer_size / 1024);
-
-#ifdef CONFIG_MTRR
- {
- /* Find the largest power of two that maps the whole buffer */
- int size_shift = 31;
-
- while (!(oi->video_buffer_size & (1 << size_shift))) {
- size_shift--;
- }
- size_shift++;
- oi->fb_start_aligned_physaddr = oi->video_pbase & ~((1 << size_shift) - 1);
- oi->fb_end_aligned_physaddr = oi->video_pbase + oi->video_buffer_size;
- oi->fb_end_aligned_physaddr += (1 << size_shift) - 1;
- oi->fb_end_aligned_physaddr &= ~((1 << size_shift) - 1);
- if (mtrr_add(oi->fb_start_aligned_physaddr,
- oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr,
- MTRR_TYPE_WRCOMB, 1) < 0) {
- IVTV_FB_WARN("cannot use mttr\n");
- oi->fb_start_aligned_physaddr = 0;
- oi->fb_end_aligned_physaddr = 0;
- }
- }
-#endif
-
- /* Blank the entire osd. */
- memset_io(oi->video_vbase, 0, oi->video_buffer_size);
-
- return 0;
-}
-
-/* Release any memory we've grabbed & remove mtrr entry */
-static void ivtvfb_release_buffers (struct ivtv *itv)
-{
- struct osd_info *oi = itv->osd_info;
-
- /* Release cmap */
- if (oi->ivtvfb_info.cmap.len);
- fb_dealloc_cmap(&oi->ivtvfb_info.cmap);
-
- /* Release pseudo palette */
- if (oi->ivtvfb_info.pseudo_palette)
- kfree(oi->ivtvfb_info.pseudo_palette);
-
-#ifdef CONFIG_MTRR
- if (oi->fb_end_aligned_physaddr) {
- mtrr_del(-1, oi->fb_start_aligned_physaddr,
- oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr);
- }
-#endif
-
- kfree(oi);
- 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);
--- /dev/null
+/*
+ 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/fb.h>
+#include <linux/ivtvfb.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+#include "ivtv-driver.h"
+#include "ivtv-udma.h"
+#include "ivtv-mailbox.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 {
+ /* 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
+
+ /* Current osd mode */
+ int osd_mode;
+
+ /* 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)
+{
+ struct osd_info *oi = itv->osd_info;
+ u32 data[CX2341X_MBOX_MAX_DATA];
+
+ ivtv_vapi_result(itv, data, CX2341X_OSD_GET_OSD_COORDS, 0);
+
+ osd->offset = data[0] - oi->video_rbase;
+ osd->max_offset = oi->display_width * oi->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)
+{
+ struct osd_info *oi = itv->osd_info;
+
+ oi->display_width = osd->pixel_stride;
+ oi->display_byte_stride = osd->pixel_stride * oi->bytes_per_pixel;
+ oi->set_osd_coords_x += osd->x;
+ oi->set_osd_coords_y = osd->y;
+
+ return ivtv_vapi(itv, CX2341X_OSD_SET_OSD_COORDS, 5,
+ osd->offset + oi->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);
+ struct osd_info *oi = itv->osd_info;
+
+ /* 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) > oi->video_buffer_size) {
+ IVTV_FB_WARN("ivtv_fb_prep_frame: Overflowing the framebuffer %ld, only %d available\n",
+ dest_offset + count, oi->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_DECODER_OFFSET + oi->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->last_vsync_field;
+ 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(msecs_to_jiffies(50))) rc = -ETIMEDOUT;
+ finish_wait(&itv->vsync_waitq, &wait);
+ return rc;
+
+ case IVTVFB_IOC_DMA_FRAME: {
+ struct ivtvfb_dma_frame args;
+
+ IVTV_FB_DEBUG_INFO("IVTVFB_IOC_DMA_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_DEBUG_INFO("Unknown ioctl %08x\n", cmd);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* Framebuffer device handling */
+
+static int ivtvfb_set_var(struct ivtv *itv, struct fb_var_screeninfo *var)
+{
+ struct osd_info *oi = itv->osd_info;
+ struct ivtv_osd_coords ivtv_osd;
+ struct v4l2_rect ivtv_window;
+ int osd_mode = -1;
+
+ 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 */
+ switch (var->bits_per_pixel) {
+ case 8:
+ osd_mode = IVTV_OSD_BPP_8;
+ break;
+ case 32:
+ osd_mode = IVTV_OSD_BPP_32;
+ break;
+ case 16:
+ switch (var->green.length) {
+ case 4:
+ osd_mode = IVTV_OSD_BPP_16_444;
+ break;
+ case 5:
+ osd_mode = IVTV_OSD_BPP_16_555;
+ break;
+ case 6:
+ osd_mode = 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");
+ }
+
+ /* Change osd mode if needed.
+ Although rare, things can go wrong. The extra mode
+ change seems to help... */
+ if (osd_mode != -1 && osd_mode != oi->osd_mode) {
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0);
+ ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, osd_mode);
+ oi->osd_mode = osd_mode;
+ }
+
+ oi->bits_per_pixel = var->bits_per_pixel;
+ oi->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_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n",
+ var->xres, var->yres,
+ var->xres_virtual, var->yres_virtual,
+ var->bits_per_pixel);
+
+ IVTV_FB_DEBUG_INFO("Display position: %d, %d\n",
+ var->left_margin, var->upper_margin);
+
+ IVTV_FB_DEBUG_INFO("Display filter: %s\n",
+ (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off");
+ IVTV_FB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB");
+
+ return 0;
+}
+
+static int ivtvfb_get_fix(struct ivtv *itv, struct fb_fix_screeninfo *fix)
+{
+ struct osd_info *oi = itv->osd_info;
+
+ 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 = oi->video_pbase;
+ fix->smem_len = oi->video_buffer_size;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->visual = (oi->bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+ fix->ywrapstep = 0;
+ fix->line_length = oi->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)
+{
+ struct osd_info *oi = itv->osd_info;
+ int osd_height_limit;
+ u32 pixclock, hlimit, vlimit;
+
+ IVTV_FB_DEBUG_INFO("ivtvfb_check_var\n");
+
+ /* Set base references for mode calcs. */
+ if (itv->is_50hz) {
+ pixclock = 84316;
+ hlimit = 776;
+ vlimit = 591;
+ osd_height_limit = 576;
+ }
+ else {
+ pixclock = 83926;
+ hlimit = 776;
+ vlimit = 495;
+ osd_height_limit = 480;
+ }
+
+ /* 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->red.offset = 8;
+ var->red.length = 4;
+ var->green.offset = 4;
+ var->green.length = 4;
+ var->blue.offset = 0;
+ var->blue.length = 4;
+ var->transp.offset = 12;
+ var->transp.length = 1;
+ break;
+ case 5:
+ var->red.offset = 10;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 5;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ var->transp.offset = 15;
+ var->transp.length = 1;
+ break;
+ default:
+ var->red.offset = 11;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 6;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ 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 != oi->ivtvfb_defined.xres ||
+ var->yres != oi->ivtvfb_defined.yres ||
+ var->xres_virtual != oi->ivtvfb_defined.xres_virtual ||
+ var->yres_virtual != oi->ivtvfb_defined.yres_virtual) {
+ IVTV_FB_DEBUG_WARN("Invalid resolution: %dx%d (virtual %dx%d)\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: %dx%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) > oi->video_buffer_size ||
+ var->xres_virtual < var->xres ||
+ var->yres_virtual < var->yres) {
+ IVTV_FB_DEBUG_WARN("Invalid virtual resolution: %dx%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 = hlimit - var->left_margin - var->xres;
+ var->lower_margin = 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. */
+ if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
+ var->pixclock = pixclock / 2;
+ else
+ var->pixclock = pixclock;
+
+ IVTV_FB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n",
+ var->xres, var->yres,
+ var->xres_virtual, var->yres_virtual,
+ var->bits_per_pixel);
+
+ IVTV_FB_DEBUG_INFO("Display position: %d, %d\n",
+ var->left_margin, var->upper_margin);
+
+ IVTV_FB_DEBUG_INFO("Display filter: %s\n",
+ (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off");
+ IVTV_FB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB");
+ 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);
+ return 0;
+ }
+ 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)
+{
+ struct osd_info *oi = itv->osd_info;
+ struct v4l2_rect start_window;
+ int max_height;
+
+ /* Color mode */
+
+ if (osd_compat) osd_depth = 32;
+ if (osd_depth != 8 && osd_depth != 16 && osd_depth != 32) osd_depth = 8;
+ oi->bits_per_pixel = osd_depth;
+ oi->bytes_per_pixel = oi->bits_per_pixel / 8;
+
+ /* Invalidate current osd mode to force a mode switch later */
+ oi->osd_mode = -1;
+
+ /* 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);
+
+ oi->display_byte_stride =
+ start_window.width * oi->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
+ start_window.height = osd_compat ? max_height : (itv->is_50hz ? 480 : 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);
+
+ oi->display_width = start_window.width;
+ oi->display_height = start_window.height;
+
+ /* Generate a valid fb_var_screeninfo */
+
+ oi->ivtvfb_defined.xres = oi->display_width;
+ oi->ivtvfb_defined.yres = oi->display_height;
+ oi->ivtvfb_defined.xres_virtual = oi->display_width;
+ oi->ivtvfb_defined.yres_virtual = oi->display_height;
+ oi->ivtvfb_defined.bits_per_pixel = oi->bits_per_pixel;
+ oi->ivtvfb_defined.vmode = (osd_laced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED);
+ oi->ivtvfb_defined.left_margin = start_window.left + 1;
+ oi->ivtvfb_defined.upper_margin = start_window.top + 1;
+ oi->ivtvfb_defined.accel_flags = FB_ACCEL_NONE;
+ oi->ivtvfb_defined.nonstd = 0;
+
+ /* We've filled in the most data, let the usual mode check
+ routine fill in the rest. */
+ _ivtvfb_check_var(&oi->ivtvfb_defined, itv);
+
+ /* Generate valid fb_fix_screeninfo */
+
+ ivtvfb_get_fix(itv, &oi->ivtvfb_fix);
+
+ /* Generate valid fb_info */
+
+ oi->ivtvfb_info.node = -1;
+ oi->ivtvfb_info.flags = FBINFO_FLAG_DEFAULT;
+ oi->ivtvfb_info.fbops = &ivtvfb_ops;
+ oi->ivtvfb_info.par = itv;
+ oi->ivtvfb_info.var = oi->ivtvfb_defined;
+ oi->ivtvfb_info.fix = oi->ivtvfb_fix;
+ oi->ivtvfb_info.screen_base = (u8 __iomem *)oi->video_vbase;
+ oi->ivtvfb_info.fbops = &ivtvfb_ops;
+
+ /* Supply some monitor specs. Bogus values will do for now */
+ oi->ivtvfb_info.monspecs.hfmin = 8000;
+ oi->ivtvfb_info.monspecs.hfmax = 70000;
+ oi->ivtvfb_info.monspecs.vfmin = 10;
+ oi->ivtvfb_info.monspecs.vfmax = 100;
+
+ /* Allocate color map */
+ if (fb_alloc_cmap(&oi->ivtvfb_info.cmap, 256, 1)) {
+ IVTV_FB_ERR("abort, unable to alloc cmap\n");
+ return -ENOMEM;
+ }
+
+ /* Allocate the pseudo palette */
+ oi->ivtvfb_info.pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
+
+ if (!oi->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)
+{
+ struct osd_info *oi = itv->osd_info;
+
+ mutex_lock(&itv->serialize_lock);
+ if (ivtv_init_on_first_open(itv)) {
+ mutex_unlock(&itv->serialize_lock);
+ IVTV_FB_ERR("Failed to initialize ivtv\n");
+ return -ENXIO;
+ }
+ mutex_unlock(&itv->serialize_lock);
+
+ ivtv_fb_get_framebuffer(itv, &oi->video_rbase, &oi->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. */
+ oi->video_buffer_size = 1704960;
+
+ oi->video_pbase = itv->base_addr + IVTV_DECODER_OFFSET + oi->video_rbase;
+ oi->video_vbase = itv->dec_mem + oi->video_rbase;
+
+ if (!oi->video_vbase) {
+ IVTV_FB_ERR("abort, video memory 0x%x @ 0x%lx isn't mapped!\n",
+ oi->video_buffer_size, oi->video_pbase);
+ return -EIO;
+ }
+
+ IVTV_FB_INFO("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
+ oi->video_pbase, oi->video_vbase,
+ oi->video_buffer_size / 1024);
+
+#ifdef CONFIG_MTRR
+ {
+ /* Find the largest power of two that maps the whole buffer */
+ int size_shift = 31;
+
+ while (!(oi->video_buffer_size & (1 << size_shift))) {
+ size_shift--;
+ }
+ size_shift++;
+ oi->fb_start_aligned_physaddr = oi->video_pbase & ~((1 << size_shift) - 1);
+ oi->fb_end_aligned_physaddr = oi->video_pbase + oi->video_buffer_size;
+ oi->fb_end_aligned_physaddr += (1 << size_shift) - 1;
+ oi->fb_end_aligned_physaddr &= ~((1 << size_shift) - 1);
+ if (mtrr_add(oi->fb_start_aligned_physaddr,
+ oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr,
+ MTRR_TYPE_WRCOMB, 1) < 0) {
+ IVTV_FB_WARN("cannot use mttr\n");
+ oi->fb_start_aligned_physaddr = 0;
+ oi->fb_end_aligned_physaddr = 0;
+ }
+ }
+#endif
+
+ /* Blank the entire osd. */
+ memset_io(oi->video_vbase, 0, oi->video_buffer_size);
+
+ return 0;
+}
+
+/* Release any memory we've grabbed & remove mtrr entry */
+static void ivtvfb_release_buffers (struct ivtv *itv)
+{
+ struct osd_info *oi = itv->osd_info;
+
+ /* Release cmap */
+ if (oi->ivtvfb_info.cmap.len);
+ fb_dealloc_cmap(&oi->ivtvfb_info.cmap);
+
+ /* Release pseudo palette */
+ if (oi->ivtvfb_info.pseudo_palette)
+ kfree(oi->ivtvfb_info.pseudo_palette);
+
+#ifdef CONFIG_MTRR
+ if (oi->fb_end_aligned_physaddr) {
+ mtrr_del(-1, oi->fb_start_aligned_physaddr,
+ oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr);
+ }
+#endif
+
+ kfree(oi);
+ 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);
--- /dev/null
+/*
+ On Screen Display cx23415 Framebuffer driver
+
+ Copyright (C) 2006, 2007 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_IVTVFB_H__
+#define __LINUX_IVTVFB_H__
+
+#ifdef __KERNEL__
+#include <linux/compiler.h> /* need __user */
+#else
+#define __user
+#endif
+#include <linux/types.h>
+
+/* Framebuffer external API */
+
+struct ivtvfb_dma_frame {
+ void __user *source;
+ unsigned long dest_offset;
+ int count;
+};
+
+#define IVTVFB_IOC_DMA_FRAME _IOW('V', BASE_VIDIOC_PRIVATE+0, struct ivtvfb_dma_frame)
+#define FBIO_WAITFORVSYNC _IOW('F', 0x20, u_int32_t)
+
+#endif
+++ /dev/null
-/*
- 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_dma_frame {
- void __user *source;
- unsigned long dest_offset;
- int count;
-};
-
-#define IVTVFB_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtvfb_dma_frame)
-#define FBIO_WAITFORVSYNC _IOW('F', 0x20, u_int32_t)
-
-#endif
projects / firefly-linux-kernel-4.4.55.git / commitdiff