/* * VIDIX driver for VIA CLE266/Unichrome chipsets. * * Copyright (C) 2004 Timothy Lee * Thanks to Gilles Frattini for bugfixes * Doxygen documentation by Benjamin Zores * h/w revision detection by Timothy Lee * * This file is part of MPlayer. * * MPlayer 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. * * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include #include #include "config.h" #include "vidix.h" #include "fourcc.h" #include "dha.h" #include "pci_ids.h" #include "pci_names.h" #include "unichrome_regs.h" /** * @brief Information on PCI device. */ static pciinfo_t pci_info; /** * @brief Unichrome driver colorkey settings. */ static vidix_grkey_t uc_grkey; static int frames[VID_PLAY_MAXFRAMES]; static uint8_t *vio; static uint8_t *uc_mem; static uint8_t mclk_save[3]; static uint8_t hwrev; #define VIA_OUT(hwregs, reg, val) *(volatile uint32_t *)((hwregs) + (reg)) = (val) #define VIA_IN(hwregs, reg) *(volatile uint32_t *)((hwregs) + (reg)) #define VGA_OUT8(hwregs, reg, val) *(volatile uint8_t *)((hwregs) + (reg) + 0x8000) = (val) #define VGA_IN8(hwregs, reg) *(volatile uint8_t *)((hwregs) + (reg) + 0x8000) #define VIDEO_OUT(hwregs, reg, val) VIA_OUT((hwregs)+0x200, reg, val) #define VIDEO_IN(hwregs, reg) VIA_IN((hwregs)+0x200, reg) #define outb(val,reg) OUTPORT8(reg,val) #define inb(reg) INPORT8(reg) #define ALIGN_TO(v, n) (((v) + (n-1)) & ~(n-1)) #define UC_MAP_V1_FIFO_CONTROL(depth, pre_thr, thr) \ (((depth)-1) | ((thr) << 8) | ((pre_thr) << 24)) #define VIDEOMEMORY_SIZE (8 * 1024 * 1024) #define FRAMEBUFFER_SIZE 0x200000 #define FRAMEBUFFER_START (VIDEOMEMORY_SIZE - FRAMEBUFFER_SIZE) #ifdef DEBUG_LOGFILE static FILE *logfile = 0; #define LOGWRITE(x) {if(logfile) fprintf(logfile,x);} #else #define LOGWRITE(x) #endif /** * @brief Unichrome driver vidix capabilities. */ static vidix_capability_t uc_cap = { "VIA CLE266 Unichrome driver", "Timothy Lee ", TYPE_OUTPUT, {0, 0, 0, 0}, 4096, 4096, 4, 4, -1, FLAG_UPSCALER | FLAG_DOWNSCALER, VENDOR_VIA2, -1, {0, 0, 0, 0} }; /** * @brief list of card IDs compliant with the Unichrome driver . */ static unsigned short uc_card_ids[] = { DEVICE_VIA2_VT8623_APOLLO_CLE266, DEVICE_VIA2_VT8378_S3_UNICHROME }; /** * @brief Find chip index in Unichrome compliant devices list. * * @param chip_id PCI device ID. * * @returns index position in uc_card_ids if successful. * -1 if chip_id is not a compliant chipset ID. */ static int find_chip (unsigned chip_id) { unsigned i; for (i = 0; i < sizeof (uc_card_ids) / sizeof (unsigned short); i++) { if (chip_id == uc_card_ids[i]) return i; } return -1; } /** * @brief Map hardware settings for vertical scaling. * * @param sh source height. * @param dh destination height. * @param zoom will hold vertical setting of zoom register. * @param mini will hold vertical setting of mini register. * * @returns 1 if successful. * 0 if the zooming factor is too large or small. * * @note Derived from VIA's V4L driver. * See ddover.c, DDOVER_HQVCalcZoomHeight() */ static int uc_ovl_map_vzoom (uint32_t sh, uint32_t dh, uint32_t * zoom, uint32_t * mini) { uint32_t sh1, tmp, d; int zoom_ok = 1; if (sh == dh) /* No zoom */ { /* Do nothing */ } else if (sh < dh) /* Zoom in */ { tmp = (sh * 0x0400) / dh; zoom_ok = !(tmp > 0x3ff); *zoom |= (tmp & 0x3ff) | V1_Y_ZOOM_ENABLE; *mini |= V1_Y_INTERPOLY | V1_YCBCR_INTERPOLY; } else /* sw > dh - Zoom out */ { /* Find a suitable divider (1 << d) = {2, 4, 8 or 16} */ sh1 = sh; for (d = 1; d < 5; d++) { sh1 >>= 1; if (sh1 <= dh) break; } if (d == 5) /* too small */ { d = 4; zoom_ok = 0; } *mini |= ((d << 1) - 1) << 16; /* <= {1,3,5,7} << 16 */ /* Add scaling */ if (sh1 < dh) { tmp = (sh1 * 0x400) / dh; *zoom |= ((tmp & 0x3ff) | V1_Y_ZOOM_ENABLE); *mini |= V1_Y_INTERPOLY | V1_YCBCR_INTERPOLY; } } return zoom_ok; } /** * @brief Map hardware settings for horizontal scaling. * * @param sw source width. * @param dw destination width. * @param zoom will hold horizontal setting of zoom register. * @param mini will hold horizontal setting of mini register. * @param falign will hold fetch aligment. * @param dcount will hold display count. * * @returns 1 if successful. * 0 if the zooming factor is too large or small. * * @note Derived from VIA's V4L driver. * See ddover.c, DDOVER_HQVCalcZoomWidth() and DDOver_GetDisplayCount() */ static int uc_ovl_map_hzoom (uint32_t sw, uint32_t dw, uint32_t * zoom, uint32_t * mini, int *falign, int *dcount) { uint32_t tmp, sw1, d; int md; /* Minify-divider */ int zoom_ok = 1; md = 1; *falign = 0; if (sw == dw) /* no zoom */ { /* Do nothing */ } else if (sw < dw) /* zoom in */ { tmp = (sw * 0x0800) / dw; zoom_ok = !(tmp > 0x7ff); *zoom |= ((tmp & 0x7ff) << 16) | V1_X_ZOOM_ENABLE; *mini |= V1_X_INTERPOLY; } else /* sw > dw - Zoom out */ { /* Find a suitable divider (1 << d) = {2, 4, 8 or 16} */ sw1 = sw; for (d = 1; d < 5; d++) { sw1 >>= 1; if (sw1 <= dw) break; } if (d == 5) /* too small */ { d = 4; zoom_ok = 0; } md = 1 << d; /* <= {2,4,8,16} */ *falign = ((md << 1) - 1) & 0xf; /* <= {3,7,15,15} */ *mini |= V1_X_INTERPOLY; *mini |= ((d << 1) - 1) << 24; /* <= {1,3,5,7} << 24 */ /* Add scaling */ if (sw1 < dw) { /* CLE bug */ /* tmp = sw1*0x0800 / dw; */ tmp = (sw1 - 2) * 0x0800 / dw; *zoom |= ((tmp & 0x7ff) << 16) | V1_X_ZOOM_ENABLE; } } *dcount = sw - md; return zoom_ok; } /** * @brief qword fetch register setting. * * @param format overlay pixel format. * @param sw source width. * * @return qword fetch register setting * * @note Derived from VIA's V4L driver. See ddover.c, DDOver_GetFetch() * @note Only call after uc_ovl_map_hzoom() */ static uint32_t uc_ovl_map_qwfetch (uint32_t format, int sw) { uint32_t fetch = 0; switch (format) { case IMGFMT_YV12: case IMGFMT_I420: fetch = ALIGN_TO (sw, 32) >> 4; break; case IMGFMT_UYVY: case IMGFMT_YVYU: case IMGFMT_YUY2: fetch = (ALIGN_TO (sw << 1, 16) >> 4) + 1; break; case IMGFMT_BGR15: case IMGFMT_BGR16: fetch = (ALIGN_TO (sw << 1, 16) >> 4) + 1; break; case IMGFMT_BGR32: fetch = (ALIGN_TO (sw << 2, 16) >> 4) + 1; break; default: printf ("[unichrome] Unexpected pixelformat!"); break; } if (fetch < 4) fetch = 4; return fetch; } /** * @brief Map pixel format. * * @param format pixel format. * * @return the mapped pixel format. * * @note Derived from VIA's V4L driver. See ddover.c, DDOver_GetV1Format() */ static uint32_t uc_ovl_map_format (uint32_t format) { switch (format) { case IMGFMT_UYVY: case IMGFMT_YVYU: case IMGFMT_YUY2: return V1_COLORSPACE_SIGN | V1_YUV422; case IMGFMT_IYUV: return V1_COLORSPACE_SIGN | V1_YCbCr420 | V1_SWAP_SW; case IMGFMT_YV12: case IMGFMT_I420: return V1_COLORSPACE_SIGN | V1_YCbCr420; case IMGFMT_BGR15: return V1_RGB15; case IMGFMT_BGR16: return V1_RGB16; case IMGFMT_BGR32: return V1_RGB32; default: printf ("[unichrome] Unexpected pixelformat!"); return V1_YUV422; } } /** * @brief Calculate V1 control and fifo-control register values. * * @param format pixel format. * @param sw source width. * @param hwrev CLE266 hardware revision. * @param extfifo_on set this 1 if the extended FIFO is enabled. * @param control will hold value for V1_CONTROL. * @param fifo will hold value for V1_FIFO_CONTROL. */ static void uc_ovl_map_v1_control (uint32_t format, int sw, int hwrev, int extfifo_on, uint32_t * control, uint32_t * fifo) { *control = V1_BOB_ENABLE | uc_ovl_map_format (format); if (hwrev == 0x10) { *control |= V1_EXPIRE_NUM_F; } else { if (extfifo_on) { *control |= V1_EXPIRE_NUM_A | V1_FIFO_EXTENDED; } else { *control |= V1_EXPIRE_NUM; } } if ((format == IMGFMT_YV12) || (format == IMGFMT_I420)) { /* Minified video will be skewed without this workaround. */ if (sw <= 80) /* Fetch count <= 5 */ { *fifo = UC_MAP_V1_FIFO_CONTROL (16, 0, 0); } else { if (hwrev == 0x10) *fifo = UC_MAP_V1_FIFO_CONTROL (64, 56, 56); else *fifo = UC_MAP_V1_FIFO_CONTROL (16, 12, 8); } } else { if (hwrev == 0x10) { *fifo = UC_MAP_V1_FIFO_CONTROL (64, 56, 56); /* Default rev 0x10 */ } else { if (extfifo_on) *fifo = UC_MAP_V1_FIFO_CONTROL (48, 40, 40); else *fifo = UC_MAP_V1_FIFO_CONTROL (32, 29, 16); /* Default */ } } } /** * @brief Setup extended FIFO. * * @param extfifo_on pointer determining if extended fifo is enable or not. * @param dst_w destination width. */ static void uc_ovl_setup_fifo (int *extfifo_on, int dst_w) { if (dst_w <= 1024) /* Disable extended FIFO */ { outb (0x16, 0x3c4); outb (mclk_save[0], 0x3c5); outb (0x17, 0x3c4); outb (mclk_save[1], 0x3c5); outb (0x18, 0x3c4); outb (mclk_save[2], 0x3c5); *extfifo_on = 0; } else /* Enable extended FIFO */ { outb (0x17, 0x3c4); outb (0x2f, 0x3c5); outb (0x16, 0x3c4); outb ((mclk_save[0] & 0xf0) | 0x14, 0x3c5); outb (0x18, 0x3c4); outb (0x56, 0x3c5); *extfifo_on = 1; } } static void uc_ovl_vcmd_wait (volatile uint8_t * vio) { while ((VIDEO_IN (vio, V_COMPOSE_MODE) & (V1_COMMAND_FIRE | V3_COMMAND_FIRE))); } /** * @brief Probe hardware to find some useable chipset. * * @param verbose specifies verbose level. * @param force specifies force mode : driver should ignore * device_id (danger but useful for new devices) * * @returns 0 if it can handle something in PC. * a negative error code otherwise. */ static int unichrome_probe (int verbose, int force) { pciinfo_t lst[MAX_PCI_DEVICES]; unsigned i, num_pci; int err; err = pci_scan (lst, &num_pci); if (err) { printf ("[unichrome] Error occurred during pci scan: %s\n", strerror (err)); return err; } else { err = ENXIO; for (i = 0; i < num_pci; i++) { if (lst[i].vendor == VENDOR_VIA2) { int idx; const char *dname; idx = find_chip (lst[i].device); if (idx == -1) continue; dname = pci_device_name (VENDOR_VIA2, lst[i].device); dname = dname ? dname : "Unknown chip"; printf ("[unichrome] Found chip: %s\n", dname); if ((lst[i].command & PCI_COMMAND_IO) == 0) { printf ("[unichrome] Device is disabled, ignoring\n"); continue; } uc_cap.device_id = lst[i].device; err = 0; memcpy (&pci_info, &lst[i], sizeof (pciinfo_t)); break; } } } if (err && verbose) printf ("[unichrome] Can't find chip\n"); return err; } /** * @brief Initializes driver. * * @returns 0 if ok. * a negative error code otherwise. */ static int unichrome_init (void) { long tmp; uc_mem = map_phys_mem (pci_info.base0, VIDEOMEMORY_SIZE); enable_app_io (); outb (0x2f, 0x3c4); tmp = inb (0x3c5) << 0x18; vio = map_phys_mem (tmp, 0x1000); outb (0x16, 0x3c4); mclk_save[0] = inb (0x3c5); outb (0x17, 0x3c4); mclk_save[1] = inb (0x3c5); outb (0x18, 0x3c4); mclk_save[2] = inb (0x3c5); uc_grkey.ckey.blue = 0x00; uc_grkey.ckey.green = 0x00; uc_grkey.ckey.red = 0x00; /* Detect whether we have a CLE266Ax or CLE266Cx */ outb (0x4f, 0x3d4); tmp = inb (0x3d5); outb (0x4f, 0x3d4); outb (0x55, 0x3d5); outb (0x4f, 0x3d4); if (0x55 == inb (0x3d5)) { /* Only CLE266Cx supports CR4F */ hwrev = 0x11; } else { /* Otherwise assume to be a CLE266Ax */ hwrev = 0x00; } outb (0x4f, 0x3d4); outb (tmp, 0x3d5); #ifdef DEBUG_LOGFILE logfile = fopen ("/tmp/uc_vidix.log", "w"); #endif return 0; } /** * @brief Destroys driver. */ static void unichrome_destroy (void) { #ifdef DEBUG_LOGFILE if (logfile) fclose (logfile); #endif outb (0x16, 0x3c4); outb (mclk_save[0], 0x3c5); outb (0x17, 0x3c4); outb (mclk_save[1], 0x3c5); outb (0x18, 0x3c4); outb (mclk_save[2], 0x3c5); disable_app_io (); unmap_phys_mem (uc_mem, VIDEOMEMORY_SIZE); unmap_phys_mem (vio, 0x1000); } /** * @brief Get chipset's hardware capabilities. * * @param to Pointer to the vidix_capability_t structure to be filled. * * @returns 0. */ static int unichrome_get_caps (vidix_capability_t * to) { memcpy (to, &uc_cap, sizeof (vidix_capability_t)); return 0; } /** * @brief Report if the video FourCC is supported by hardware. * * @param fourcc input image format. * * @returns 1 if the fourcc is supported. * 0 otherwise. */ static int is_supported_fourcc (uint32_t fourcc) { switch (fourcc) { case IMGFMT_YV12: case IMGFMT_I420: case IMGFMT_UYVY: case IMGFMT_YVYU: case IMGFMT_YUY2: case IMGFMT_BGR15: case IMGFMT_BGR16: case IMGFMT_BGR32: return 1; default: return 0; } } /** * @brief Try to configure video memory for given fourcc. * * @param to Pointer to the vidix_fourcc_t structure to be filled. * * @returns 0 if ok. * errno otherwise. */ static int unichrome_query_fourcc (vidix_fourcc_t * to) { if (is_supported_fourcc (to->fourcc)) { to->depth = VID_DEPTH_ALL; to->flags = VID_CAP_EXPAND | VID_CAP_SHRINK | VID_CAP_COLORKEY; return 0; } else to->depth = to->flags = 0; return ENOSYS; } /** * @brief Get the GrKeys * * @param grkey Pointer to the vidix_grkey_t structure to be filled by driver. * * @return 0. */ static int unichrome_get_gkey (vidix_grkey_t * grkey) { memcpy (grkey, &uc_grkey, sizeof (vidix_grkey_t)); return 0; } /** * @brief Set the GrKeys * * @param grkey Colorkey to be set. * * @return 0. */ static int unichrome_set_gkey (const vidix_grkey_t * grkey) { unsigned long dwCompose = VIDEO_IN (vio, V_COMPOSE_MODE) & ~0x0f; memcpy (&uc_grkey, grkey, sizeof (vidix_grkey_t)); if (uc_grkey.ckey.op != CKEY_FALSE) { /* Set colorkey (how do I detect BPP in hardware ??) */ unsigned long ckey; if (1) /* Assume 16-bit graphics */ { ckey = (grkey->ckey.blue & 0x1f) | ((grkey->ckey.green & 0x3f) << 5) | ((grkey->ckey.red & 0x1f) << 11); } else { ckey = (grkey->ckey.blue) | (grkey->ckey.green << 8) | (grkey->ckey.red << 16); } VIDEO_OUT (vio, V_COLOR_KEY, ckey); dwCompose |= SELECT_VIDEO_IF_COLOR_KEY; } /* Execute the changes */ VIDEO_OUT (vio, V_COMPOSE_MODE, dwCompose | V1_COMMAND_FIRE); return 0; } /** * @brief Unichrome driver equalizer capabilities. */ static vidix_video_eq_t equal = { VEQ_CAP_BRIGHTNESS | VEQ_CAP_SATURATION | VEQ_CAP_HUE, 300, 100, 0, 0, 0, 0, 0, 0 }; /** * @brief Get the equalizer capabilities. * * @param eq Pointer to the vidix_video_eq_t structure to be filled by driver. * * @return 0. */ static int unichrome_get_eq (vidix_video_eq_t * eq) { memcpy (eq, &equal, sizeof (vidix_video_eq_t)); return 0; } /** * @brief Set the equalizer capabilities for color correction * * @param eq equalizer capabilities to be set. * * @return 0. */ static int unichrome_set_eq (const vidix_video_eq_t * eq) { return 0; } /** * @brief Y, U, V offsets. */ static int YOffs, UOffs, VOffs; static int unichrome_frame_select (unsigned int frame); /** * @brief Configure driver for playback. Driver should prepare BES. * * @param info configuration description for playback. * * @returns 0 in case of success. * -1 otherwise. */ static int unichrome_config_playback (vidix_playback_t * info) { int src_w, drw_w; int src_h, drw_h; long base0, pitch = 0; int uv_size = 0, swap_uv; unsigned int i; int extfifo_on; /* Overlay register settings */ uint32_t win_start, win_end; uint32_t zoom, mini; uint32_t dcount, falign, qwfetch; uint32_t v_ctrl, fifo_ctrl; if (!is_supported_fourcc (info->fourcc)) return -1; src_w = info->src.w; src_h = info->src.h; drw_w = info->dest.w; drw_h = info->dest.h; /* Setup FIFO */ uc_ovl_setup_fifo (&extfifo_on, src_w); /* Get image format, FIFO size, etc. */ uc_ovl_map_v1_control (info->fourcc, src_w, hwrev, extfifo_on, &v_ctrl, &fifo_ctrl); /* Setup layer window */ win_start = (info->dest.x << 16) | info->dest.y; win_end = ((info->dest.x + drw_w - 1) << 16) | (info->dest.y + drw_h - 1); /* Get scaling and data-fetch parameters */ zoom = 0; mini = 0; uc_ovl_map_vzoom (src_h, drw_h, &zoom, &mini); uc_ovl_map_hzoom (src_w, drw_w, &zoom, &mini, (int *) &falign, (int *) &dcount); qwfetch = uc_ovl_map_qwfetch (info->fourcc, src_w); /* Calculate buffer sizes */ swap_uv = 0; switch (info->fourcc) { case IMGFMT_YV12: swap_uv = 1; case IMGFMT_I420: case IMGFMT_UYVY: case IMGFMT_YVYU: pitch = ALIGN_TO (src_w, 32); uv_size = (pitch >> 1) * (src_h >> 1); break; case IMGFMT_YUY2: case IMGFMT_BGR15: case IMGFMT_BGR16: pitch = ALIGN_TO (src_w << 1, 32); uv_size = 0; break; case IMGFMT_BGR32: pitch = ALIGN_TO (src_w << 2, 32); uv_size = 0; break; } if ((src_w > 4096) || (src_h > 4096) || (src_w < 32) || (src_h < 1) || (pitch > 0x1fff)) { printf ("[unichrome] Layer size out of bounds\n"); } /* Calculate offsets */ info->offset.y = 0; info->offset.v = info->offset.y + pitch * src_h; info->offset.u = info->offset.v + uv_size; info->frame_size = info->offset.u + uv_size; YOffs = info->offset.y; UOffs = (swap_uv ? info->offset.v : info->offset.u); VOffs = (swap_uv ? info->offset.u : info->offset.v); /* Assume we have 2 MB to play with */ info->num_frames = FRAMEBUFFER_SIZE / info->frame_size; if (info->num_frames > VID_PLAY_MAXFRAMES) info->num_frames = VID_PLAY_MAXFRAMES; /* Start at 6 MB. Let's hope it's not in use. */ base0 = FRAMEBUFFER_START; info->dga_addr = uc_mem + base0; info->dest.pitch.y = 32; info->dest.pitch.u = 32; info->dest.pitch.v = 32; for (i = 0; i < info->num_frames; i++) { info->offsets[i] = info->frame_size * i; frames[i] = base0 + info->offsets[i]; } /* Write to the hardware */ uc_ovl_vcmd_wait (vio); /* Configure diy_pitchlay parameters now */ if (v_ctrl & V1_COLORSPACE_SIGN) { if (hwrev >= 0x10) { VIDEO_OUT (vio, V1_ColorSpaceReg_2, ColorSpaceValue_2_3123C0); VIDEO_OUT (vio, V1_ColorSpaceReg_1, ColorSpaceValue_1_3123C0); } else { VIDEO_OUT (vio, V1_ColorSpaceReg_2, ColorSpaceValue_2); VIDEO_OUT (vio, V1_ColorSpaceReg_1, ColorSpaceValue_1); } } VIDEO_OUT (vio, V1_CONTROL, v_ctrl); VIDEO_OUT (vio, V_FIFO_CONTROL, fifo_ctrl); VIDEO_OUT (vio, V1_WIN_START_Y, win_start); VIDEO_OUT (vio, V1_WIN_END_Y, win_end); VIDEO_OUT (vio, V1_SOURCE_HEIGHT, (src_h << 16) | dcount); VIDEO_OUT (vio, V12_QWORD_PER_LINE, qwfetch << 20); VIDEO_OUT (vio, V1_STRIDE, pitch | ((pitch >> 1) << 16)); VIDEO_OUT (vio, V1_MINI_CONTROL, mini); VIDEO_OUT (vio, V1_ZOOM_CONTROL, zoom); /* Configure buffer address and execute the changes now! */ unichrome_frame_select (0); return 0; } /** * @brief Set playback on : driver should activate BES on this call. * * @return 0. */ static int unichrome_playback_on (void) { LOGWRITE ("Enable overlay\n"); /* Turn on overlay */ VIDEO_OUT (vio, V1_CONTROL, VIDEO_IN (vio, V1_CONTROL) | V1_ENABLE); /* Execute the changes */ VIDEO_OUT (vio, V_COMPOSE_MODE, VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE); return 0; } /** * @brief Set playback off : driver should deactivate BES on this call. * * @return 0. */ static int unichrome_playback_off (void) { LOGWRITE ("Disable overlay\n"); uc_ovl_vcmd_wait (vio); /* Restore FIFO */ VIDEO_OUT (vio, V_FIFO_CONTROL, UC_MAP_V1_FIFO_CONTROL (16, 12, 8)); /* Turn off overlay */ VIDEO_OUT (vio, V1_CONTROL, VIDEO_IN (vio, V1_CONTROL) & ~V1_ENABLE); /* Execute the changes */ VIDEO_OUT (vio, V_COMPOSE_MODE, VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE); return 0; } /** * @brief Driver should prepare and activate corresponded frame. * * @param frame the frame index. * * @return 0. * * @note This function is used only for double and triple buffering * and never used for single buffering playback. */ static int unichrome_frame_select (unsigned int frame) { LOGWRITE ("Frame select\n"); uc_ovl_vcmd_wait (vio); /* Configure buffer address */ VIDEO_OUT (vio, V1_STARTADDR_Y0, frames[frame] + YOffs); VIDEO_OUT (vio, V1_STARTADDR_CB0, frames[frame] + UOffs); VIDEO_OUT (vio, V1_STARTADDR_CR0, frames[frame] + VOffs); /* Execute the changes */ VIDEO_OUT (vio, V_COMPOSE_MODE, VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE); return 0; } VDXDriver unichrome_drv = { "unichrome", NULL, .probe = unichrome_probe, .get_caps = unichrome_get_caps, .query_fourcc = unichrome_query_fourcc, .init = unichrome_init, .destroy = unichrome_destroy, .config_playback = unichrome_config_playback, .playback_on = unichrome_playback_on, .playback_off = unichrome_playback_off, .frame_sel = unichrome_frame_select, .get_eq = unichrome_get_eq, .set_eq = unichrome_set_eq, .get_gkey = unichrome_get_gkey, .set_gkey = unichrome_set_gkey, };