diff options
Diffstat (limited to 'vidix/sh_veu_vid.c')
| -rw-r--r-- | vidix/sh_veu_vid.c | 634 |
1 files changed, 0 insertions, 634 deletions
diff --git a/vidix/sh_veu_vid.c b/vidix/sh_veu_vid.c deleted file mode 100644 index cc45e32d86..0000000000 --- a/vidix/sh_veu_vid.c +++ /dev/null @@ -1,634 +0,0 @@ -/* - * VIDIX driver for SuperH Mobile VEU hardware block. - * Copyright (C) 2008, 2009 Magnus Damm - * - * Requires a kernel that exposes the VEU hardware block to user space - * using UIO. Available in upstream linux-2.6.27 or later. - * - * Tested using WVGA and QVGA panels with sh7722 VEU and sh7723 VEU2H. - * - * 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 <stdio.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <sys/mman.h> -#include <sys/time.h> -#include <sys/ioctl.h> -#include <fcntl.h> -#include <linux/fb.h> -#include <inttypes.h> -#include <unistd.h> -#include <errno.h> - -#include "config.h" -#include "vidix.h" -#include "fourcc.h" - -#include "dha.h" - -static int fgets_with_openclose(char *fname, char *buf, size_t maxlen) -{ - FILE *fp; - - fp = fopen(fname, "r"); - if (!fp) - return -1; - - fgets(buf, maxlen, fp); - fclose(fp); - return strlen(buf); -} - -struct uio_device { - char *name; - char *path; - int fd; -}; - -#define MAXNAMELEN 256 - -static int locate_uio_device(char *name, struct uio_device *udp) -{ - char fname[MAXNAMELEN], buf[MAXNAMELEN]; - char *tmp; - int uio_id; - - uio_id = -1; - do { - uio_id++; - snprintf(fname, MAXNAMELEN, "/sys/class/uio/uio%d/name", uio_id); - if (fgets_with_openclose(fname, buf, MAXNAMELEN) < 0) - return -1; - - } while (strncmp(name, buf, strlen(name))); - - tmp = strchr(buf, '\n'); - if (tmp) - *tmp = '\0'; - - udp->name = strdup(buf); - udp->path = strdup(fname); - udp->path[strlen(udp->path) - 5] = '\0'; - - snprintf(buf, MAXNAMELEN, "/dev/uio%d", uio_id); - udp->fd = open(buf, O_RDWR | O_SYNC); - - if (udp->fd < 0) - return -1; - - return 0; -} - -struct uio_map { - unsigned long address; - unsigned long size; - void *iomem; -}; - -static int setup_uio_map(struct uio_device *udp, int nr, struct uio_map *ump) -{ - char fname[MAXNAMELEN], buf[MAXNAMELEN]; - - snprintf(fname, MAXNAMELEN, "%s/maps/map%d/addr", udp->path, nr); - if (fgets_with_openclose(fname, buf, MAXNAMELEN) <= 0) - return -1; - - ump->address = strtoul(buf, NULL, 0); - - snprintf(fname, MAXNAMELEN, "%s/maps/map%d/size", udp->path, nr); - if (fgets_with_openclose(fname, buf, MAXNAMELEN) <= 0) - return -1; - - ump->size = strtoul(buf, NULL, 0); - ump->iomem = mmap(0, ump->size, - PROT_READ|PROT_WRITE, MAP_SHARED, - udp->fd, nr * getpagesize()); - - if (ump->iomem == MAP_FAILED) - return -1; - - return 0; -} - -struct fb_info { - unsigned long width; - unsigned long height; - unsigned long bpp; - unsigned long line_length; - - unsigned long address; - unsigned long size; -}; - -static int get_fb_info(char *device, struct fb_info *fip) -{ - struct fb_var_screeninfo vinfo; - struct fb_fix_screeninfo finfo; - void *iomem; - int fd; - - fd = open(device, O_RDWR); - if (fd < 0) { - perror("open"); - return -1; - } - - if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo) == -1) { - perror("ioctl(FBIOGET_VSCREENINFO)"); - return -1; - } - - fip->width = vinfo.xres; - fip->height = vinfo.yres; - fip->bpp = vinfo.bits_per_pixel; - - if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1) { - perror("ioctl(FBIOGET_FSCREENINFO)"); - return -1; - } - - fip->address = finfo.smem_start; - fip->size = finfo.smem_len; - fip->line_length = finfo.line_length; - - iomem = mmap(0, fip->size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); - - if (iomem == MAP_FAILED) { - perror("mmap"); - return -1; - } - - /* clear framebuffer */ - memset(iomem, 0, fip->line_length * fip->height); - munmap(iomem, fip->size); - - return fd; -} - -#define VESTR 0x00 /* start register */ -#define VESWR 0x10 /* src: line length */ -#define VESSR 0x14 /* src: image size */ -#define VSAYR 0x18 /* src: y/rgb plane address */ -#define VSACR 0x1c /* src: c plane address */ -#define VBSSR 0x20 /* bundle mode register */ -#define VEDWR 0x30 /* dst: line length */ -#define VDAYR 0x34 /* dst: y/rgb plane address */ -#define VDACR 0x38 /* dst: c plane address */ -#define VTRCR 0x50 /* transform control */ -#define VRFCR 0x54 /* resize scale */ -#define VRFSR 0x58 /* resize clip */ -#define VENHR 0x5c /* enhance */ -#define VFMCR 0x70 /* filter mode */ -#define VVTCR 0x74 /* lowpass vertical */ -#define VHTCR 0x78 /* lowpass horizontal */ -#define VAPCR 0x80 /* color match */ -#define VECCR 0x84 /* color replace */ -#define VAFXR 0x90 /* fixed mode */ -#define VSWPR 0x94 /* swap */ -#define VEIER 0xa0 /* interrupt mask */ -#define VEVTR 0xa4 /* interrupt event */ -#define VSTAR 0xb0 /* status */ -#define VBSRR 0xb4 /* reset */ - -#define VMCR00 0x200 /* color conversion matrix coefficient 00 */ -#define VMCR01 0x204 /* color conversion matrix coefficient 01 */ -#define VMCR02 0x208 /* color conversion matrix coefficient 02 */ -#define VMCR10 0x20c /* color conversion matrix coefficient 10 */ -#define VMCR11 0x210 /* color conversion matrix coefficient 11 */ -#define VMCR12 0x214 /* color conversion matrix coefficient 12 */ -#define VMCR20 0x218 /* color conversion matrix coefficient 20 */ -#define VMCR21 0x21c /* color conversion matrix coefficient 21 */ -#define VMCR22 0x220 /* color conversion matrix coefficient 22 */ -#define VCOFFR 0x224 /* color conversion offset */ -#define VCBR 0x228 /* color conversion clip */ - -#define VRPBR 0xc8 /* resize passband */ - -/* Helper functions for reading registers. */ - -static unsigned long read_reg(struct uio_map *ump, int reg_offs) -{ - volatile unsigned long *reg = ump->iomem; - - return reg[reg_offs / 4]; -} - -static void write_reg(struct uio_map *ump, unsigned long value, int reg_offs) -{ - volatile unsigned long *reg = ump->iomem; - - reg[reg_offs / 4] = value; -} - -static vidix_capability_t sh_veu_cap = { - "SuperH VEU driver", - "Magnus Damm", - TYPE_OUTPUT, - { 0, 0, 0, 0 }, - 2560, - 1920, - 16, - 16, - -1, - FLAG_UPSCALER|FLAG_DOWNSCALER, - -1, - -1, - { 0, 0, 0, 0 } -}; - -/* global variables yuck */ - -static struct fb_info fbi; -static struct uio_device uio_dev; -static struct uio_map uio_mmio, uio_mem; - -struct sh_veu_plane { - unsigned long width; - unsigned long height; - unsigned long stride; - unsigned long pos_x; - unsigned long pos_y; -}; - -static struct sh_veu_plane _src, _dst; -static vidix_playback_t my_info; -static int fb_fd; - -static int sh_veu_probe(int verbose, int force) -{ - int ret; - - ret = get_fb_info("/dev/fb0", &fbi); - if (ret < 0) - return ret; - fb_fd = ret; - - if (fbi.bpp != 16) { - printf("sh_veu: only 16bpp supported\n"); - return -1; - } - - ret = locate_uio_device("VEU", &uio_dev); - if (ret < 0) { - printf("sh_veu: unable to locate matching UIO device\n"); - return ret; - } - - ret = setup_uio_map(&uio_dev, 0, &uio_mmio); - if (ret < 0) { - printf("sh_veu: cannot setup MMIO\n"); - return ret; - } - - ret = setup_uio_map(&uio_dev, 1, &uio_mem); - if (ret < 0) { - printf("sh_veu: cannot setup contiguous memory\n"); - return ret; - } - - printf("sh_veu: Using %s at %s on %lux%lu %ldbpp /dev/fb0\n", - uio_dev.name, uio_dev.path, - fbi.width, fbi.height, fbi.bpp); - - return ret; -} - -static void sh_veu_wait_irq(vidix_playback_t *info) -{ - unsigned long n_pending; - - /* Wait for an interrupt */ - read(uio_dev.fd, &n_pending, sizeof(unsigned long)); - - write_reg(&uio_mmio, 0x100, VEVTR); /* ack int, write 0 to bit 0 */ - - /* flush framebuffer to handle deferred io case */ - fsync(fb_fd); -} - -static int sh_veu_is_veu2h(void) -{ - return uio_mmio.size == 0x27c; -} - -static int sh_veu_is_veu3f(void) -{ - return uio_mmio.size == 0xcc; -} - -static unsigned long sh_veu_do_scale(struct uio_map *ump, - int vertical, int size_in, - int size_out, int crop_out) -{ - unsigned long fixpoint, mant, frac, value, rep, vb; - - /* calculate FRAC and MANT */ - do { - rep = mant = frac = 0; - - if (size_in == size_out) { - if (crop_out != size_out) - mant = 1; /* needed for cropping */ - break; - } - - /* VEU2H special upscale */ - if (sh_veu_is_veu2h() && size_out > size_in) { - fixpoint = (4096 * size_in) / size_out; - - mant = fixpoint / 4096; - frac = fixpoint - (mant * 4096); - frac &= ~0x07; - - switch (frac) { - case 0x800: - rep = 1; - break; - case 0x400: - rep = 3; - break; - case 0x200: - rep = 7; - break; - } - - if (rep) - break; - } - - fixpoint = (4096 * (size_in - 1)) / (size_out + 1); - mant = fixpoint / 4096; - frac = fixpoint - (mant * 4096); - - if (frac & 0x07) { - frac &= ~0x07; - if (size_out > size_in) - frac -= 8; /* round down if scaling up */ - else - frac += 8; /* round up if scaling down */ - } - - } while (0); - - /* set scale */ - value = read_reg(ump, VRFCR); - if (vertical) { - value &= ~0xffff0000; - value |= ((mant << 12) | frac) << 16; - } else { - value &= ~0xffff; - value |= (mant << 12) | frac; - } - write_reg(ump, value, VRFCR); - - /* set clip */ - value = read_reg(ump, VRFSR); - if (vertical) { - value &= ~0xffff0000; - value |= ((rep << 12) | crop_out) << 16; - } else { - value &= ~0xffff; - value |= (rep << 12) | crop_out; - } - write_reg(ump, value, VRFSR); - - /* VEU3F needs additional VRPBR register handling */ - if (sh_veu_is_veu3f()) { - if (size_out > size_in) - vb = 64; - else { - if ((mant >= 8) && (mant < 16)) - value = 4; - else if ((mant >= 4) && (mant < 8)) - value = 2; - else - value = 1; - - vb = 64 * 4096 * value; - vb /= 4096 * mant + frac; - } - - /* set resize passband register */ - value = read_reg(ump, VRPBR); - if (vertical) { - value &= ~0xffff0000; - value |= vb << 16; - } else { - value &= ~0xffff; - value |= vb; - } - write_reg(ump, value, VRPBR); - } - - return (((size_in * crop_out) / size_out) + 0x03) & ~0x03; -} - -static void sh_veu_setup_planes(vidix_playback_t *info, - struct sh_veu_plane *src, - struct sh_veu_plane *dst) -{ - unsigned long addr, real_w, real_h; - - src->width = info->src.w; - src->height = info->src.h; - src->stride = (info->src.w+15) & ~15; - - dst->width = real_w = info->dest.w; - dst->height = real_h = info->dest.h; - dst->stride = fbi.line_length; - dst->pos_x = info->dest.x & ~0x03; - dst->pos_y = info->dest.y; - - if ((dst->width + dst->pos_x) > fbi.width) - dst->width = fbi.width - dst->pos_x; - - if ((dst->height + dst->pos_y) > fbi.height) - dst->height = fbi.height - dst->pos_y; - - addr = fbi.address; - addr += dst->pos_x * (fbi.bpp / 8); - addr += dst->pos_y * dst->stride; - - src->width = sh_veu_do_scale(&uio_mmio, 0, src->width, - real_w, dst->width); - src->height = sh_veu_do_scale(&uio_mmio, 1, src->height, - real_h, dst->height); - - write_reg(&uio_mmio, src->stride, VESWR); - write_reg(&uio_mmio, src->width | (src->height << 16), VESSR); - write_reg(&uio_mmio, 0, VBSSR); /* not using bundle mode */ - - write_reg(&uio_mmio, dst->stride, VEDWR); - write_reg(&uio_mmio, addr, VDAYR); - write_reg(&uio_mmio, 0, VDACR); /* unused for RGB */ - - write_reg(&uio_mmio, 0x67, VSWPR); - write_reg(&uio_mmio, (6 << 16) | (0 << 14) | 2 | 4, VTRCR); - - if (sh_veu_is_veu2h()) { - write_reg(&uio_mmio, 0x0cc5, VMCR00); - write_reg(&uio_mmio, 0x0950, VMCR01); - write_reg(&uio_mmio, 0x0000, VMCR02); - - write_reg(&uio_mmio, 0x397f, VMCR10); - write_reg(&uio_mmio, 0x0950, VMCR11); - write_reg(&uio_mmio, 0x3ccd, VMCR12); - - write_reg(&uio_mmio, 0x0000, VMCR20); - write_reg(&uio_mmio, 0x0950, VMCR21); - write_reg(&uio_mmio, 0x1023, VMCR22); - - write_reg(&uio_mmio, 0x00800010, VCOFFR); - } - - write_reg(&uio_mmio, 1, VEIER); /* enable interrupt in VEU */ -} - -static void sh_veu_blit(vidix_playback_t *info, int frame) -{ - unsigned long enable = 1; - unsigned long addr; - - addr = uio_mem.address + info->offsets[frame]; - - write_reg(&uio_mmio, addr + info->offset.y, VSAYR); - write_reg(&uio_mmio, addr + info->offset.u, VSACR); - - /* Enable interrupt in UIO driver */ - write(uio_dev.fd, &enable, sizeof(unsigned long)); - - write_reg(&uio_mmio, 1, VESTR); /* start operation */ -} - -static int sh_veu_init(void) -{ - write_reg(&uio_mmio, 0x100, VBSRR); /* reset VEU */ - return 0; -} - -static void sh_veu_destroy(void) -{ - close(fb_fd); -} - -static int sh_veu_get_caps(vidix_capability_t *to) -{ - memcpy(to, &sh_veu_cap, sizeof(vidix_capability_t)); - return 0; -} - -static int sh_veu_query_fourcc(vidix_fourcc_t *to) -{ - if (to->fourcc == IMGFMT_NV12) { - to->depth = VID_DEPTH_ALL; - to->flags = VID_CAP_EXPAND | VID_CAP_SHRINK; - return 0; - } - to->depth = to->flags = 0; - return ENOSYS; -} - - -static int sh_veu_config_playback(vidix_playback_t *info) -{ - unsigned int i, y_pitch; - - switch (info->fourcc) { - case IMGFMT_NV12: - y_pitch = (info->src.w + 15) & ~15; - - info->offset.y = 0; - info->offset.u = y_pitch * info->src.h; - info->frame_size = info->offset.u + info->offset.u / 2; - break; - default: - return ENOTSUP; - } - - info->num_frames = uio_mem.size / info->frame_size; - if (info->num_frames > VID_PLAY_MAXFRAMES) - info->num_frames = VID_PLAY_MAXFRAMES; - - if (!info->num_frames) { - printf("sh_veu: %d is not enough memory for %d bytes frame\n", - (int)uio_mem.size, (int)info->frame_size); - return ENOMEM; - } - - info->dga_addr = uio_mem.iomem; - info->dest.pitch.y = info->dest.pitch.u = info->dest.pitch.v = 16; - - for (i = 0; i < info->num_frames; i++) - info->offsets[i] = info->frame_size * i; - - my_info = *info; - - printf("sh_veu: %d frames * %d bytes, total size = %d\n", - (int)info->num_frames, (int)info->frame_size, - (int)uio_mem.size); - - sh_veu_setup_planes(info, &_src, &_dst); - - printf("sh_veu: %dx%d->%dx%d@%dx%d -> %dx%d->%dx%d@%dx%d \n", - (int)info->src.w, (int)info->src.h, - (int)info->dest.w, (int)info->dest.h, - (int)info->dest.x, (int)info->dest.y, - (int)_src.width, (int)_src.height, - (int)_dst.width, (int)_dst.height, - (int)_dst.pos_x, (int)_dst.pos_y); - return 0; -} - - -static int sh_veu_playback_on(void) -{ - return 0; -} - -static int sh_veu_playback_off(void) -{ - return 0; -} - -static int sh_veu_first_frame = 1; - -static int sh_veu_frame_sel(unsigned int frame) -{ - if (!sh_veu_first_frame) - sh_veu_wait_irq(&my_info); - - sh_veu_blit(&my_info, frame); - sh_veu_first_frame = 0; - return 0; -} - -VDXDriver sh_veu_drv = { - "sh_veu", - NULL, - .probe = sh_veu_probe, - .get_caps = sh_veu_get_caps, - .query_fourcc = sh_veu_query_fourcc, - .init = sh_veu_init, - .destroy = sh_veu_destroy, - .config_playback = sh_veu_config_playback, - .playback_on = sh_veu_playback_on, - .playback_off = sh_veu_playback_off, - .frame_sel = sh_veu_frame_sel, -}; |