From 0f45b8c57e40cca1778b0b75daab65ca139e5bb9 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 Aug 2007 06:04:10 -0300 Subject: V4L/DVB (6119): ivtvfb: renamed ivtv-fb to ivtvfb, move header to include/linux 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ivtv/Kconfig | 2 +- drivers/media/video/ivtv/Makefile | 2 +- drivers/media/video/ivtv/ivtv-fb.c | 1199 ------------------------------------ drivers/media/video/ivtv/ivtvfb.c | 1190 +++++++++++++++++++++++++++++++++++ 4 files changed, 1192 insertions(+), 1201 deletions(-) delete mode 100644 drivers/media/video/ivtv/ivtv-fb.c create mode 100644 drivers/media/video/ivtv/ivtvfb.c (limited to 'drivers') diff --git a/drivers/media/video/ivtv/Kconfig b/drivers/media/video/ivtv/Kconfig index 5efacb33211..7f20c166d59 100644 --- a/drivers/media/video/ivtv/Kconfig +++ b/drivers/media/video/ivtv/Kconfig @@ -27,7 +27,7 @@ config VIDEO_IVTV 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 diff --git a/drivers/media/video/ivtv/Makefile b/drivers/media/video/ivtv/Makefile index 6998781e2b1..e8eefd96d89 100644 --- a/drivers/media/video/ivtv/Makefile +++ b/drivers/media/video/ivtv/Makefile @@ -5,4 +5,4 @@ ivtv-objs := ivtv-routing.o ivtv-cards.o ivtv-controls.o \ 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 diff --git a/drivers/media/video/ivtv/ivtv-fb.c b/drivers/media/video/ivtv/ivtv-fb.c deleted file mode 100644 index d2b1f5d5c8b..00000000000 --- a/drivers/media/video/ivtv/ivtv-fb.c +++ /dev/null @@ -1,1199 +0,0 @@ -/* - 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 - - Derived from drivers/video/vesafb.c - Portions (c) 1998 Gerd Knorr - - 2.6 kernel port: - Copyright (C) 2004 Matthias Badaire - - Copyright (C) 2004 Chris Kennedy - - Copyright (C) 2006 Ian Armstrong - - 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#ifdef CONFIG_MTRR -#include -#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); diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c new file mode 100644 index 00000000000..ff721c08847 --- /dev/null +++ b/drivers/media/video/ivtv/ivtvfb.c @@ -0,0 +1,1190 @@ +/* + 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 + + Derived from drivers/video/vesafb.c + Portions (c) 1998 Gerd Knorr + + 2.6 kernel port: + Copyright (C) 2004 Matthias Badaire + + Copyright (C) 2004 Chris Kennedy + + Copyright (C) 2006 Ian Armstrong + + 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 +#include +#include +#include + +#ifdef CONFIG_MTRR +#include +#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); -- cgit v1.2.3