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1275 |
phoenix |
/*
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planb - v4l-compatible frame grabber driver for the PlanB hardware
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PlanB is used in the 7x00/8x00 series of PowerMacintosh
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Computers as video input DMA controller.
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Copyright (C) 1998 - 2002 Michel Lanners <mailto:mlan@cpu.lu>
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Based largely on the old bttv driver by Ralph Metzler
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Additional debugging and coding by Takashi Oe <mailto:toe@unlserve.unl.edu>
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For more information, see <http://www.cpu.lu/~mlan/planb.html>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: planb.c,v 1.1.1.1 2004-04-15 02:19:41 phoenix Exp $ */
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#include <linux/version.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/major.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/vmalloc.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include <linux/poll.h>
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#include <linux/wrapper.h>
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#include <linux/tqueue.h>
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#include <linux/videodev.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/dbdma.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <asm/irq.h>
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#include <asm/semaphore.h>
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/* Define these to get general / interrupt debugging */
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#undef DEBUG
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#undef IDEBUG
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//#define DEBUG
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#ifdef DEBUG
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#define DBG(x...) printk(KERN_DEBUG ## x)
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#else
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#define DBG(x...)
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#endif
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#ifdef IDEBUG
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#define IDBG(x...) printk(KERN_DEBUG ## x)
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#else
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#define IDBG(x...)
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#endif
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#include "planb.h"
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#include "saa7196.h"
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static struct planb planbs;
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static volatile struct planb_registers *planb_regs;
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static int def_norm = PLANB_DEF_NORM; /* default norm */
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static int video_nr = -1;
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static int vbi_nr = -1;
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MODULE_PARM(def_norm, "i");
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MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)");
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MODULE_PARM(video_nr,"i");
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MODULE_PARM(vbi_nr,"i");
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MODULE_DESCRIPTION("planb - v4l driver module for Apple PlanB video in");
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MODULE_AUTHOR("Michel Lanners & Takashi Oe - see: http://www.cpu.lu/planb.html");
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MODULE_LICENSE("GPL");
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/* ------------------ PlanB Exported Functions ------------------ */
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static long planb_write(struct video_device *, const char *, unsigned long, int);
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static long planb_read(struct video_device *, char *, unsigned long, int);
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static int planb_open(struct video_device *, int);
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static void planb_close(struct video_device *);
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static int planb_ioctl(struct video_device *, unsigned int, void *);
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static int planb_mmap(struct video_device *, const char *, unsigned long);
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static void planb_irq(int, void *, struct pt_regs *);
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static int planb_vbi_open(struct video_device *, int);
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static void planb_vbi_close(struct video_device *);
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static long planb_vbi_read(struct video_device *, char *, unsigned long, int);
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static unsigned int planb_vbi_poll(struct video_device *, struct file *,
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poll_table *);
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static int planb_vbi_ioctl(struct video_device *, unsigned int, void *);
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static void release_planb(void);
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static int __init init_planbs(void);
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static void __exit exit_planbs(void);
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/* ------------------ PlanB Internal Functions ------------------ */
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static int planb_prepare_open(struct planb *);
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static int planb_prepare_vbi(struct planb *);
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static int planb_prepare_video(struct planb *);
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static void planb_prepare_close(struct planb *);
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static void planb_close_vbi(struct planb *);
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static void planb_close_video(struct planb *);
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static void saa_write_reg(unsigned char, unsigned char);
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static unsigned char saa_status(int, struct planb *);
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static void saa_set(unsigned char, unsigned char, struct planb *);
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static void saa_init_regs(struct planb *);
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static int grabbuf_alloc(struct planb *);
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static int vgrab(struct planb *, struct video_mmap *);
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static void add_clip(struct planb *, struct video_clip *);
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static void fill_cmd_buff(struct planb *);
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static void cmd_buff(struct planb *);
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static dbdma_cmd_ptr setup_grab_cmd(int, struct planb *);
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static void overlay_start(struct planb *);
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static void overlay_stop(struct planb *);
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static inline void tab_cmd_dbdma(dbdma_cmd_ptr, unsigned short, unsigned int);
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static inline void tab_cmd_store(dbdma_cmd_ptr, unsigned int, unsigned int);
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static inline void tab_cmd_gen(dbdma_cmd_ptr, unsigned short, unsigned short,
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unsigned int, unsigned int);
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static int init_planb(struct planb *);
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static int find_planb(void);
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static void planb_pre_capture(int, struct planb *);
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static dbdma_cmd_ptr cmd_geo_setup(dbdma_cmd_ptr, int, int, int, int, int,
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struct planb *);
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static inline void planb_dbdma_stop(dbdma_regs_ptr);
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static inline void planb_dbdma_restart(dbdma_regs_ptr);
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static void saa_geo_setup(int, int, int, int, struct planb *);
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static inline int overlay_is_active(struct planb *);
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/*******************************/
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/* Memory management functions */
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/*******************************/
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/* I know this is not the right way to allocate memory. Whoever knows
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* the right way to allocate a huge buffer for DMA that can be mapped
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* to user space, please tell me... or better, fix the code and send
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* patches.
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*
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* Michel Lanners (mlan@cpu.lu)
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*/
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/* FIXME: As subsequent calls to __get_free_pages don't necessarily return
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* contiguous pages, we need to do horrible things later on when setting
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* up DMA, to make sure a single DMA transfer doesn't cross a page boundary.
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* At least, I hope it's done right later on ;-) ......
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* Anyway, there should be a way to get hold of a large buffer of contiguous
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* pages for DMA....
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*/
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static int grabbuf_alloc(struct planb *pb)
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{
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int i, npage;
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npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1)
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#ifndef PLANB_GSCANLINE
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+ MAX_LNUM
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#endif /* PLANB_GSCANLINE */
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);
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if ((pb->rawbuf = (unsigned char**) kmalloc (npage
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* sizeof(unsigned long), GFP_KERNEL)) == 0)
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return -ENOMEM;
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for (i = 0; i < npage; i++) {
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pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL |
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GFP_DMA, 0);
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if (!pb->rawbuf[i])
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break;
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mem_map_reserve(virt_to_page(pb->rawbuf[i]));
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}
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if (i-- < npage) {
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DBG("PlanB: init_grab: grab buffer not allocated\n");
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for (; i > 0; i--) {
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mem_map_unreserve(virt_to_page(pb->rawbuf[i]));
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free_pages((unsigned long)pb->rawbuf[i], 0);
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}
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kfree(pb->rawbuf);
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return -ENOBUFS;
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}
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pb->rawbuf_nchunks = npage;
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return 0;
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}
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/*****************************/
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/* Hardware access functions */
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/*****************************/
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static void saa_write_reg(unsigned char addr, unsigned char val)
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{
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planb_regs->saa_addr = addr; eieio();
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planb_regs->saa_regval = val; eieio();
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return;
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}
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/* return status byte 0 or 1: */
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static unsigned char saa_status(int byte, struct planb *pb)
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{
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saa_regs[pb->win.norm][SAA7196_STDC] =
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(saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1);
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saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]);
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/* Let's wait 30msec for this one */
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current->state = TASK_INTERRUPTIBLE;
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schedule_timeout(30 * HZ / 1000);
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return (unsigned char)in_8 (&planb_regs->saa_status);
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}
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static void saa_set(unsigned char addr, unsigned char val, struct planb *pb)
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{
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if(saa_regs[pb->win.norm][addr] != val) {
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saa_regs[pb->win.norm][addr] = val;
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saa_write_reg (addr, val);
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}
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return;
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}
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static void saa_init_regs(struct planb *pb)
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{
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int i;
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for (i = 0; i < SAA7196_NUMREGS; i++)
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saa_write_reg (i, saa_regs[pb->win.norm][i]);
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}
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static void saa_geo_setup(int width, int height, int interlace,
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int fmt, struct planb *pb)
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{
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int ht, norm = pb->win.norm;
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/* bits FS0, FS1 according to format spec */
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saa_regs[norm][SAA7196_FMTS] &= ~0x3;
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saa_regs[norm][SAA7196_FMTS] |= (palette2fmt[fmt].saa_fmt & 0x3);
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ht = (interlace ? height / 2 : height);
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saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff);
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saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3)
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| (width >> 8 & 0x3);
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saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff);
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saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3)
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| (ht >> 8 & 0x3);
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/* feed both fields if interlaced, or else feed only even fields */
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saa_regs[norm][SAA7196_FMTS] = (interlace) ?
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(saa_regs[norm][SAA7196_FMTS] & ~0x60)
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: (saa_regs[norm][SAA7196_FMTS] | 0x60);
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/* transparent mode; extended format enabled */
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saa_regs[norm][SAA7196_DPATH] |= 0x3;
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/* bits LLV, MCT according to format spec */
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saa_regs[norm][SAA7196_DPATH] &= ~0x30;
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saa_regs[norm][SAA7196_DPATH] |= (palette2fmt[fmt].saa_fmt & 0x30);
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| 263 |
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}
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| 264 |
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| 265 |
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/***************************/
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| 266 |
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/* DBDMA support functions */
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| 267 |
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/***************************/
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| 268 |
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| 269 |
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static inline void planb_dbdma_restart(dbdma_regs_ptr ch)
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| 270 |
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{
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| 271 |
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writel(PLANB_CLR(RUN), &ch->control);
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| 272 |
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writel(PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE), &ch->control);
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| 273 |
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}
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| 274 |
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| 275 |
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static inline void planb_dbdma_stop(dbdma_regs_ptr ch)
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| 276 |
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{
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| 277 |
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int i = 0;
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| 278 |
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| 279 |
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writel(PLANB_CLR(RUN) | PLANB_SET(FLUSH), &ch->control);
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| 280 |
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while((readl(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) {
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| 281 |
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IDBG("PlanB: waiting for DMA to stop\n");
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| 282 |
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i++;
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| 283 |
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}
|
| 284 |
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}
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| 285 |
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| 286 |
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static inline void tab_cmd_dbdma(dbdma_cmd_ptr ch, unsigned short command,
|
| 287 |
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unsigned int cmd_dep)
|
| 288 |
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{
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| 289 |
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st_le16(&ch->command, command);
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| 290 |
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st_le16(&ch->req_count, 0);
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| 291 |
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st_le32(&ch->phy_addr, 0);
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| 292 |
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st_le32(&ch->cmd_dep, cmd_dep);
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| 293 |
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/* really clears res_count & xfer_status */
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| 294 |
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st_le32((unsigned int *)&ch->res_count, 0);
|
| 295 |
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}
|
| 296 |
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| 297 |
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static inline void tab_cmd_store(dbdma_cmd_ptr ch, unsigned int phy_addr,
|
| 298 |
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unsigned int cmd_dep)
|
| 299 |
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{
|
| 300 |
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st_le16(&ch->command, STORE_WORD | KEY_SYSTEM);
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| 301 |
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st_le16(&ch->req_count, 4);
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| 302 |
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st_le32(&ch->phy_addr, phy_addr);
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| 303 |
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st_le32(&ch->cmd_dep, cmd_dep);
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| 304 |
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st_le32((unsigned int *)&ch->res_count, 0);
|
| 305 |
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}
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| 306 |
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| 307 |
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static inline void tab_cmd_gen(dbdma_cmd_ptr ch, unsigned short command,
|
| 308 |
|
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unsigned short req_count, unsigned int phy_addr, unsigned int cmd_dep)
|
| 309 |
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{
|
| 310 |
|
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st_le16(&ch->command, command);
|
| 311 |
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st_le16(&ch->req_count, req_count);
|
| 312 |
|
|
st_le32(&ch->phy_addr, phy_addr);
|
| 313 |
|
|
st_le32(&ch->cmd_dep, cmd_dep);
|
| 314 |
|
|
st_le32((unsigned int *)&ch->res_count, 0);
|
| 315 |
|
|
}
|
| 316 |
|
|
|
| 317 |
|
|
static dbdma_cmd_ptr cmd_geo_setup(dbdma_cmd_ptr c1, int width, int height,
|
| 318 |
|
|
int interlace, int fmt, int clip, struct planb *pb)
|
| 319 |
|
|
{
|
| 320 |
|
|
int norm = pb->win.norm;
|
| 321 |
|
|
|
| 322 |
|
|
saa_geo_setup(width, height, interlace, fmt, pb);
|
| 323 |
|
|
/* if the number of DBDMA commands here (14) changes, lots of
|
| 324 |
|
|
* things need to be corrected accordingly... */
|
| 325 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 326 |
|
|
SAA7196_FMTS);
|
| 327 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 328 |
|
|
saa_regs[norm][SAA7196_FMTS]);
|
| 329 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 330 |
|
|
SAA7196_DPATH);
|
| 331 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 332 |
|
|
saa_regs[norm][SAA7196_DPATH]);
|
| 333 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->even),
|
| 334 |
|
|
palette2fmt[fmt].pb_fmt | ((clip)? PLANB_CLIPMASK: 0));
|
| 335 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->odd),
|
| 336 |
|
|
palette2fmt[fmt].pb_fmt | ((clip)? PLANB_CLIPMASK: 0));
|
| 337 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 338 |
|
|
SAA7196_OUTPIX);
|
| 339 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 340 |
|
|
saa_regs[norm][SAA7196_OUTPIX]);
|
| 341 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 342 |
|
|
SAA7196_HFILT);
|
| 343 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 344 |
|
|
saa_regs[norm][SAA7196_HFILT]);
|
| 345 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 346 |
|
|
SAA7196_OUTLINE);
|
| 347 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 348 |
|
|
saa_regs[norm][SAA7196_OUTLINE]);
|
| 349 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr),
|
| 350 |
|
|
SAA7196_VYP);
|
| 351 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval),
|
| 352 |
|
|
saa_regs[norm][SAA7196_VYP]);
|
| 353 |
|
|
return c1;
|
| 354 |
|
|
}
|
| 355 |
|
|
|
| 356 |
|
|
/******************************/
|
| 357 |
|
|
/* misc. supporting functions */
|
| 358 |
|
|
/******************************/
|
| 359 |
|
|
|
| 360 |
|
|
static inline void planb_lock(struct planb *pb)
|
| 361 |
|
|
{
|
| 362 |
|
|
DBG("PlanB: planb_lock\n");
|
| 363 |
|
|
down(&pb->lock);
|
| 364 |
|
|
}
|
| 365 |
|
|
|
| 366 |
|
|
static inline void planb_unlock(struct planb *pb)
|
| 367 |
|
|
{
|
| 368 |
|
|
DBG("PlanB: planb_unlock\n");
|
| 369 |
|
|
up(&pb->lock);
|
| 370 |
|
|
}
|
| 371 |
|
|
|
| 372 |
|
|
/***************/
|
| 373 |
|
|
/* Driver Core */
|
| 374 |
|
|
/***************/
|
| 375 |
|
|
|
| 376 |
|
|
/* number of entries in the circular DBDMA command buffer
|
| 377 |
|
|
* initial stop, odd/even vbi, odd/even video, branch back */
|
| 378 |
|
|
#define NUMJUMPS 6
|
| 379 |
|
|
static int planb_prepare_open(struct planb *pb)
|
| 380 |
|
|
{
|
| 381 |
|
|
dbdma_cmd_ptr c;
|
| 382 |
|
|
int size, i;
|
| 383 |
|
|
|
| 384 |
|
|
size = (NUMJUMPS + 1) * sizeof(struct dbdma_cmd);
|
| 385 |
|
|
|
| 386 |
|
|
if((pb->jump_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0)
|
| 387 |
|
|
return -ENOMEM;
|
| 388 |
|
|
memset(pb->jump_raw, 0, size);
|
| 389 |
|
|
c = pb->jumpbuf = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->jump_raw);
|
| 390 |
|
|
|
| 391 |
|
|
/* circular DBDMA command buffer, to hold jumps to transfer commands */
|
| 392 |
|
|
tab_cmd_dbdma(c++, DBDMA_STOP, 0);
|
| 393 |
|
|
for (i=1; i<NUMJUMPS-1; i++)
|
| 394 |
|
|
tab_cmd_dbdma(c++, DBDMA_NOP, 0);
|
| 395 |
|
|
tab_cmd_dbdma(c, DBDMA_NOP|BR_ALWAYS,
|
| 396 |
|
|
(unsigned int)pb->jumpbuf);
|
| 397 |
|
|
|
| 398 |
|
|
DBG("PlanB: planb_prepare_open, jumpbuffer at 0x%08x, length %d.\n",
|
| 399 |
|
|
(unsigned int)pb->jumpbuf, size);
|
| 400 |
|
|
return 0;
|
| 401 |
|
|
}
|
| 402 |
|
|
|
| 403 |
|
|
#define VBIDUMMY 40 /* must be even !! */
|
| 404 |
|
|
static int planb_prepare_vbi(struct planb *pb)
|
| 405 |
|
|
{
|
| 406 |
|
|
int size;
|
| 407 |
|
|
|
| 408 |
|
|
/* allocate VBI comand buffer memory
|
| 409 |
|
|
(2 fields * VBI_MAXLINES + 40 handling + alignment) */
|
| 410 |
|
|
size = (2*VBI_MAXLINES + VBIDUMMY + 1) * sizeof(struct dbdma_cmd);
|
| 411 |
|
|
|
| 412 |
|
|
if ((pb->vbi_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0)
|
| 413 |
|
|
return -ENOMEM;
|
| 414 |
|
|
memset (pb->vbi_raw, 0, size);
|
| 415 |
|
|
size = (VBI_MAXLINES + VBIDUMMY/2) * sizeof(struct dbdma_cmd);
|
| 416 |
|
|
pb->vbi_cbo.start = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->vbi_raw);
|
| 417 |
|
|
pb->vbi_cbo.size = pb->vbi_cbe.size = size;
|
| 418 |
|
|
pb->vbi_cbe.start = pb->vbi_cbo.start + pb->vbi_cbo.size;
|
| 419 |
|
|
pb->vbi_cbo.jumpaddr = pb->jumpbuf + 1;
|
| 420 |
|
|
pb->vbi_cbe.jumpaddr = pb->jumpbuf + 3;
|
| 421 |
|
|
|
| 422 |
|
|
DBG("PlanB: planb_prepare_vbi, dbdma cmd_buf at 0x%08x, length %d.\n",
|
| 423 |
|
|
(unsigned int)pb->vbi_cbo.start, 2*size);
|
| 424 |
|
|
return 0;
|
| 425 |
|
|
}
|
| 426 |
|
|
|
| 427 |
|
|
static int planb_prepare_video(struct planb *pb)
|
| 428 |
|
|
{
|
| 429 |
|
|
int i, size;
|
| 430 |
|
|
|
| 431 |
|
|
/* FIXME: This is stressing kmalloc to its limits...
|
| 432 |
|
|
We really should allocate smaller chunks. */
|
| 433 |
|
|
|
| 434 |
|
|
/* allocate memory for two plus alpha command buffers (size: max lines,
|
| 435 |
|
|
plus 40 commands handling, plus 1 alignment), plus dummy command buf,
|
| 436 |
|
|
plus clipmask buffer, plus frame grabbing status */
|
| 437 |
|
|
size = (pb->tab_size * (2 + MAX_GBUFFERS * TAB_FACTOR)
|
| 438 |
|
|
+ MAX_GBUFFERS * PLANB_DUMMY + 1) * sizeof(struct dbdma_cmd)
|
| 439 |
|
|
+ (PLANB_MAXLINES * ((PLANB_MAXPIXELS + 7) & ~7)) / 8
|
| 440 |
|
|
+ MAX_GBUFFERS * sizeof(unsigned int);
|
| 441 |
|
|
if ((pb->vid_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0)
|
| 442 |
|
|
return -ENOMEM;
|
| 443 |
|
|
memset (pb->vid_raw, 0, size);
|
| 444 |
|
|
pb->vid_cbo.start = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->vid_raw);
|
| 445 |
|
|
pb->vid_cbo.size = pb->vid_cbe.size = pb->tab_size/2;
|
| 446 |
|
|
pb->vid_cbe.start = pb->vid_cbo.start + pb->vid_cbo.size;
|
| 447 |
|
|
pb->vid_cbo.jumpaddr = pb->jumpbuf + 2;
|
| 448 |
|
|
pb->vid_cbe.jumpaddr = pb->jumpbuf + 4;
|
| 449 |
|
|
pb->overlay_last1 = pb->vid_cbo.start;
|
| 450 |
|
|
pb->vid_cbo.bus = virt_to_bus(pb->vid_cbo.start);
|
| 451 |
|
|
pb->vid_cbe.bus = virt_to_bus(pb->vid_cbe.start);
|
| 452 |
|
|
pb->clip_cbo.start = pb->vid_cbe.start + pb->vid_cbe.size;
|
| 453 |
|
|
pb->clip_cbo.size = pb->clip_cbe.size = pb->tab_size/2;
|
| 454 |
|
|
pb->clip_cbe.start = pb->clip_cbo.start + pb->clip_cbo.size;
|
| 455 |
|
|
pb->overlay_last2 = pb->clip_cbo.start;
|
| 456 |
|
|
pb->clip_cbo.bus = virt_to_bus(pb->clip_cbo.start);
|
| 457 |
|
|
pb->clip_cbe.bus = virt_to_bus(pb->clip_cbe.start);
|
| 458 |
|
|
pb->gbuf[0].cap_cmd = pb->clip_cbe.start + pb->clip_cbe.size;
|
| 459 |
|
|
pb->gbuf[0].pre_cmd = pb->gbuf[0].cap_cmd + pb->tab_size * TAB_FACTOR;
|
| 460 |
|
|
for (i = 1; i < MAX_GBUFFERS; i++) {
|
| 461 |
|
|
pb->gbuf[i].cap_cmd = pb->gbuf[i-1].pre_cmd + PLANB_DUMMY;
|
| 462 |
|
|
pb->gbuf[i].pre_cmd = pb->gbuf[i].cap_cmd +
|
| 463 |
|
|
pb->tab_size * TAB_FACTOR;
|
| 464 |
|
|
}
|
| 465 |
|
|
pb->gbuf[0].status = (volatile unsigned int *)
|
| 466 |
|
|
(pb->gbuf[MAX_GBUFFERS-1].pre_cmd + PLANB_DUMMY);
|
| 467 |
|
|
for (i = 1; i < MAX_GBUFFERS; i++)
|
| 468 |
|
|
pb->gbuf[i].status = pb->gbuf[i-1].status;
|
| 469 |
|
|
pb->mask = (unsigned char *)(pb->gbuf[MAX_GBUFFERS-1].status + 1);
|
| 470 |
|
|
|
| 471 |
|
|
pb->rawbuf = NULL;
|
| 472 |
|
|
pb->rawbuf_nchunks = 0;
|
| 473 |
|
|
pb->grabbing = 0;
|
| 474 |
|
|
for (i = 0; i < MAX_GBUFFERS; i++) {
|
| 475 |
|
|
gbuf_ptr gbuf = &pb->gbuf[i];
|
| 476 |
|
|
|
| 477 |
|
|
*gbuf->status = GBUFFER_UNUSED;
|
| 478 |
|
|
gbuf->width = 0;
|
| 479 |
|
|
gbuf->height = 0;
|
| 480 |
|
|
gbuf->fmt = 0;
|
| 481 |
|
|
gbuf->norm_switch = 0;
|
| 482 |
|
|
#ifndef PLANB_GSCANLINE
|
| 483 |
|
|
gbuf->lsize = 0;
|
| 484 |
|
|
gbuf->lnum = 0;
|
| 485 |
|
|
#endif
|
| 486 |
|
|
}
|
| 487 |
|
|
pb->gcount = 0;
|
| 488 |
|
|
pb->suspend = 0;
|
| 489 |
|
|
pb->last_fr = -999;
|
| 490 |
|
|
pb->prev_last_fr = -999;
|
| 491 |
|
|
|
| 492 |
|
|
/* Reset DMA controllers */
|
| 493 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 494 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 495 |
|
|
|
| 496 |
|
|
DBG("PlanB: planb_prepare_video, dbdma cmd_buf at 0x%08x, "
|
| 497 |
|
|
"length %d.\n", (unsigned int)pb->vid_cbo.start, 2*size);
|
| 498 |
|
|
return 0;
|
| 499 |
|
|
}
|
| 500 |
|
|
|
| 501 |
|
|
static void planb_prepare_close(struct planb *pb)
|
| 502 |
|
|
{
|
| 503 |
|
|
/* make sure the dma's are idle */
|
| 504 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 505 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 506 |
|
|
|
| 507 |
|
|
if(pb->jump_raw != 0) {
|
| 508 |
|
|
kfree(pb->jump_raw);
|
| 509 |
|
|
pb->jump_raw = 0;
|
| 510 |
|
|
}
|
| 511 |
|
|
return;
|
| 512 |
|
|
}
|
| 513 |
|
|
|
| 514 |
|
|
static void planb_close_vbi(struct planb *pb)
|
| 515 |
|
|
{
|
| 516 |
|
|
/* FIXME: stop running DMA */
|
| 517 |
|
|
|
| 518 |
|
|
/* Make sure the DMA controller doesn't jump here anymore */
|
| 519 |
|
|
tab_cmd_dbdma(pb->vbi_cbo.jumpaddr, DBDMA_NOP, 0);
|
| 520 |
|
|
tab_cmd_dbdma(pb->vbi_cbe.jumpaddr, DBDMA_NOP, 0);
|
| 521 |
|
|
|
| 522 |
|
|
if(pb->vbi_raw != 0) {
|
| 523 |
|
|
kfree (pb->vbi_raw);
|
| 524 |
|
|
pb->vbi_raw = 0;
|
| 525 |
|
|
}
|
| 526 |
|
|
|
| 527 |
|
|
/* FIXME: deallocate VBI data buffer */
|
| 528 |
|
|
|
| 529 |
|
|
/* FIXME: restart running DMA if app. */
|
| 530 |
|
|
return;
|
| 531 |
|
|
}
|
| 532 |
|
|
|
| 533 |
|
|
static void planb_close_video(struct planb *pb)
|
| 534 |
|
|
{
|
| 535 |
|
|
int i;
|
| 536 |
|
|
|
| 537 |
|
|
/* FIXME: stop running DMA */
|
| 538 |
|
|
|
| 539 |
|
|
/* Make sure the DMA controller doesn't jump here anymore */
|
| 540 |
|
|
tab_cmd_dbdma(pb->vid_cbo.jumpaddr, DBDMA_NOP, 0);
|
| 541 |
|
|
tab_cmd_dbdma(pb->vid_cbe.jumpaddr, DBDMA_NOP, 0);
|
| 542 |
|
|
/* No clipmask jumpbuffer yet */
|
| 543 |
|
|
#if 0
|
| 544 |
|
|
tab_cmd_dbdma(pb->clip_cbo.jumpaddr, DBDMA_NOP, 0);
|
| 545 |
|
|
tab_cmd_dbdma(pb->clip_cbe.jumpaddr, DBDMA_NOP, 0);
|
| 546 |
|
|
#endif
|
| 547 |
|
|
|
| 548 |
|
|
if(pb->vid_raw != 0) {
|
| 549 |
|
|
kfree (pb->vid_raw);
|
| 550 |
|
|
pb->vid_raw = 0;
|
| 551 |
|
|
pb->cmd_buff_inited = 0;
|
| 552 |
|
|
}
|
| 553 |
|
|
if(pb->rawbuf) {
|
| 554 |
|
|
for (i = 0; i < pb->rawbuf_nchunks; i++) {
|
| 555 |
|
|
mem_map_unreserve(virt_to_page(pb->rawbuf[i]));
|
| 556 |
|
|
free_pages((unsigned long)pb->rawbuf[i], 0);
|
| 557 |
|
|
}
|
| 558 |
|
|
kfree(pb->rawbuf);
|
| 559 |
|
|
}
|
| 560 |
|
|
pb->rawbuf = NULL;
|
| 561 |
|
|
|
| 562 |
|
|
/* FIXME: restart running DMA if app. */
|
| 563 |
|
|
return;
|
| 564 |
|
|
}
|
| 565 |
|
|
|
| 566 |
|
|
/*****************************/
|
| 567 |
|
|
/* overlay support functions */
|
| 568 |
|
|
/*****************************/
|
| 569 |
|
|
|
| 570 |
|
|
static void overlay_start(struct planb *pb)
|
| 571 |
|
|
{
|
| 572 |
|
|
DBG("PlanB: overlay_start()\n");
|
| 573 |
|
|
|
| 574 |
|
|
if(ACTIVE & readl(&pb->planb_base->ch1.status)) {
|
| 575 |
|
|
|
| 576 |
|
|
DBG("PlanB: presumably, grabbing is in progress...\n");
|
| 577 |
|
|
|
| 578 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 579 |
|
|
writel(pb->clip_cbo.bus, &pb->planb_base->ch2.cmdptr);
|
| 580 |
|
|
planb_dbdma_restart(&pb->planb_base->ch2);
|
| 581 |
|
|
st_le16 (&pb->vid_cbo.start->command, DBDMA_NOP);
|
| 582 |
|
|
tab_cmd_dbdma(pb->gbuf[pb->last_fr].last_cmd,
|
| 583 |
|
|
DBDMA_NOP | BR_ALWAYS, pb->vid_cbo.bus);
|
| 584 |
|
|
eieio();
|
| 585 |
|
|
pb->prev_last_fr = pb->last_fr;
|
| 586 |
|
|
pb->last_fr = -2;
|
| 587 |
|
|
if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) {
|
| 588 |
|
|
IDBG("PlanB: became inactive "
|
| 589 |
|
|
"in the mean time... reactivating\n");
|
| 590 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 591 |
|
|
writel(pb->vid_cbo.bus, &pb->planb_base->ch1.cmdptr);
|
| 592 |
|
|
planb_dbdma_restart(&pb->planb_base->ch1);
|
| 593 |
|
|
}
|
| 594 |
|
|
} else {
|
| 595 |
|
|
|
| 596 |
|
|
DBG("PlanB: currently idle, so can do whatever\n");
|
| 597 |
|
|
|
| 598 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 599 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 600 |
|
|
st_le32(&pb->planb_base->ch2.cmdptr, pb->clip_cbo.bus);
|
| 601 |
|
|
st_le32(&pb->planb_base->ch1.cmdptr, pb->vid_cbo.bus);
|
| 602 |
|
|
writew(DBDMA_NOP, &pb->vid_cbo.start->command);
|
| 603 |
|
|
planb_dbdma_restart(&pb->planb_base->ch2);
|
| 604 |
|
|
planb_dbdma_restart(&pb->planb_base->ch1);
|
| 605 |
|
|
pb->last_fr = -1;
|
| 606 |
|
|
}
|
| 607 |
|
|
return;
|
| 608 |
|
|
}
|
| 609 |
|
|
|
| 610 |
|
|
static void overlay_stop(struct planb *pb)
|
| 611 |
|
|
{
|
| 612 |
|
|
DBG("PlanB: overlay_stop()\n");
|
| 613 |
|
|
|
| 614 |
|
|
if(pb->last_fr == -1) {
|
| 615 |
|
|
|
| 616 |
|
|
DBG("PlanB: no grabbing, it seems...\n");
|
| 617 |
|
|
|
| 618 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 619 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 620 |
|
|
pb->last_fr = -999;
|
| 621 |
|
|
} else if(pb->last_fr == -2) {
|
| 622 |
|
|
unsigned int cmd_dep;
|
| 623 |
|
|
tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].cap_cmd, DBDMA_STOP, 0);
|
| 624 |
|
|
eieio();
|
| 625 |
|
|
cmd_dep = (unsigned int)readl(&pb->overlay_last1->cmd_dep);
|
| 626 |
|
|
if(overlay_is_active(pb)) {
|
| 627 |
|
|
|
| 628 |
|
|
DBG("PlanB: overlay is currently active\n");
|
| 629 |
|
|
|
| 630 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 631 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 632 |
|
|
if(cmd_dep != pb->vid_cbo.bus) {
|
| 633 |
|
|
writel(virt_to_bus(pb->overlay_last1),
|
| 634 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 635 |
|
|
planb_dbdma_restart(&pb->planb_base->ch1);
|
| 636 |
|
|
}
|
| 637 |
|
|
}
|
| 638 |
|
|
pb->last_fr = pb->prev_last_fr;
|
| 639 |
|
|
pb->prev_last_fr = -999;
|
| 640 |
|
|
}
|
| 641 |
|
|
return;
|
| 642 |
|
|
}
|
| 643 |
|
|
|
| 644 |
|
|
static void suspend_overlay(struct planb *pb)
|
| 645 |
|
|
{
|
| 646 |
|
|
int fr = -1;
|
| 647 |
|
|
struct dbdma_cmd last;
|
| 648 |
|
|
|
| 649 |
|
|
DBG("PlanB: suspend_overlay: %d\n", pb->suspend);
|
| 650 |
|
|
|
| 651 |
|
|
if(pb->suspend++)
|
| 652 |
|
|
return;
|
| 653 |
|
|
if(ACTIVE & readl(&pb->planb_base->ch1.status)) {
|
| 654 |
|
|
if(pb->last_fr == -2) {
|
| 655 |
|
|
fr = pb->prev_last_fr;
|
| 656 |
|
|
memcpy(&last, (void*)pb->gbuf[fr].last_cmd, sizeof(last));
|
| 657 |
|
|
tab_cmd_dbdma(pb->gbuf[fr].last_cmd, DBDMA_STOP, 0);
|
| 658 |
|
|
}
|
| 659 |
|
|
if(overlay_is_active(pb)) {
|
| 660 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 661 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 662 |
|
|
pb->suspended.overlay = 1;
|
| 663 |
|
|
pb->suspended.frame = fr;
|
| 664 |
|
|
memcpy(&pb->suspended.cmd, &last, sizeof(last));
|
| 665 |
|
|
return;
|
| 666 |
|
|
}
|
| 667 |
|
|
}
|
| 668 |
|
|
pb->suspended.overlay = 0;
|
| 669 |
|
|
pb->suspended.frame = fr;
|
| 670 |
|
|
memcpy(&pb->suspended.cmd, &last, sizeof(last));
|
| 671 |
|
|
return;
|
| 672 |
|
|
}
|
| 673 |
|
|
|
| 674 |
|
|
static void resume_overlay(struct planb *pb)
|
| 675 |
|
|
{
|
| 676 |
|
|
|
| 677 |
|
|
DBG("PlanB: resume_overlay: %d\n", pb->suspend);
|
| 678 |
|
|
|
| 679 |
|
|
if(pb->suspend > 1)
|
| 680 |
|
|
return;
|
| 681 |
|
|
if(pb->suspended.frame != -1) {
|
| 682 |
|
|
memcpy((void*)pb->gbuf[pb->suspended.frame].last_cmd,
|
| 683 |
|
|
&pb->suspended.cmd, sizeof(pb->suspended.cmd));
|
| 684 |
|
|
}
|
| 685 |
|
|
if(ACTIVE & readl(&pb->planb_base->ch1.status)) {
|
| 686 |
|
|
goto finish;
|
| 687 |
|
|
}
|
| 688 |
|
|
if(pb->suspended.overlay) {
|
| 689 |
|
|
|
| 690 |
|
|
DBG("PlanB: overlay being resumed\n");
|
| 691 |
|
|
|
| 692 |
|
|
st_le16 (&pb->vid_cbo.start->command, DBDMA_NOP);
|
| 693 |
|
|
st_le16 (&pb->clip_cbo.start->command, DBDMA_NOP);
|
| 694 |
|
|
/* Set command buffer addresses */
|
| 695 |
|
|
writel(virt_to_bus(pb->overlay_last1),
|
| 696 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 697 |
|
|
writel(virt_to_bus(pb->overlay_last2),
|
| 698 |
|
|
&pb->planb_base->ch2.cmdptr);
|
| 699 |
|
|
/* Start the DMA controller */
|
| 700 |
|
|
writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE),
|
| 701 |
|
|
&pb->planb_base->ch2.control);
|
| 702 |
|
|
writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE),
|
| 703 |
|
|
&pb->planb_base->ch1.control);
|
| 704 |
|
|
} else if(pb->suspended.frame != -1) {
|
| 705 |
|
|
writel(virt_to_bus(pb->gbuf[pb->suspended.frame].last_cmd),
|
| 706 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 707 |
|
|
writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE),
|
| 708 |
|
|
&pb->planb_base->ch1.control);
|
| 709 |
|
|
}
|
| 710 |
|
|
|
| 711 |
|
|
finish:
|
| 712 |
|
|
pb->suspend--;
|
| 713 |
|
|
wake_up_interruptible(&pb->suspendq);
|
| 714 |
|
|
}
|
| 715 |
|
|
|
| 716 |
|
|
static void add_clip(struct planb *pb, struct video_clip *clip)
|
| 717 |
|
|
{
|
| 718 |
|
|
volatile unsigned char *base;
|
| 719 |
|
|
int xc = clip->x, yc = clip->y;
|
| 720 |
|
|
int wc = clip->width, hc = clip->height;
|
| 721 |
|
|
int ww = pb->win.width, hw = pb->win.height;
|
| 722 |
|
|
int x, y, xtmp1, xtmp2;
|
| 723 |
|
|
|
| 724 |
|
|
DBG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc);
|
| 725 |
|
|
|
| 726 |
|
|
if(xc < 0) {
|
| 727 |
|
|
wc += xc;
|
| 728 |
|
|
xc = 0;
|
| 729 |
|
|
}
|
| 730 |
|
|
if(yc < 0) {
|
| 731 |
|
|
hc += yc;
|
| 732 |
|
|
yc = 0;
|
| 733 |
|
|
}
|
| 734 |
|
|
if(xc + wc > ww)
|
| 735 |
|
|
wc = ww - xc;
|
| 736 |
|
|
if(wc <= 0) /* Nothing to do */
|
| 737 |
|
|
return;
|
| 738 |
|
|
if(yc + hc > hw)
|
| 739 |
|
|
hc = hw - yc;
|
| 740 |
|
|
|
| 741 |
|
|
for (y = yc; y < yc+hc; y++) {
|
| 742 |
|
|
xtmp1=xc>>3;
|
| 743 |
|
|
xtmp2=(xc+wc)>>3;
|
| 744 |
|
|
base = pb->mask + y*96;
|
| 745 |
|
|
if(xc != 0 || wc >= 8)
|
| 746 |
|
|
*(base + xtmp1) &= (unsigned char)(0x00ff &
|
| 747 |
|
|
(0xff00 >> (xc&7)));
|
| 748 |
|
|
for (x = xtmp1 + 1; x < xtmp2; x++) {
|
| 749 |
|
|
*(base + x) = 0;
|
| 750 |
|
|
}
|
| 751 |
|
|
if(xc < (ww & ~0x7))
|
| 752 |
|
|
*(base + xtmp2) &= (unsigned char)(0x00ff >>
|
| 753 |
|
|
((xc+wc) & 7));
|
| 754 |
|
|
}
|
| 755 |
|
|
|
| 756 |
|
|
return;
|
| 757 |
|
|
}
|
| 758 |
|
|
|
| 759 |
|
|
static void fill_cmd_buff(struct planb *pb)
|
| 760 |
|
|
{
|
| 761 |
|
|
int restore = 0;
|
| 762 |
|
|
dbdma_cmd_t last;
|
| 763 |
|
|
|
| 764 |
|
|
DBG("PlanB: fill_cmd_buff()\n");
|
| 765 |
|
|
|
| 766 |
|
|
if(pb->overlay_last1 != pb->vid_cbo.start) {
|
| 767 |
|
|
restore = 1;
|
| 768 |
|
|
last = *(pb->overlay_last1);
|
| 769 |
|
|
}
|
| 770 |
|
|
memset ((void *) pb->vid_cbo.start, 0, 2 * pb->tab_size
|
| 771 |
|
|
* sizeof(struct dbdma_cmd));
|
| 772 |
|
|
cmd_buff (pb);
|
| 773 |
|
|
if(restore)
|
| 774 |
|
|
*(pb->overlay_last1) = last;
|
| 775 |
|
|
if(pb->suspended.overlay) {
|
| 776 |
|
|
unsigned long jump_addr = readl(&pb->overlay_last1->cmd_dep);
|
| 777 |
|
|
if(jump_addr != pb->vid_cbo.bus) {
|
| 778 |
|
|
int i;
|
| 779 |
|
|
|
| 780 |
|
|
DBG("PlanB: adjusting ch1's jump address\n");
|
| 781 |
|
|
|
| 782 |
|
|
for(i = 0; i < MAX_GBUFFERS; i++) {
|
| 783 |
|
|
if(pb->gbuf[i].need_pre_capture) {
|
| 784 |
|
|
if(jump_addr == virt_to_bus(pb->gbuf[i].pre_cmd))
|
| 785 |
|
|
goto found;
|
| 786 |
|
|
} else {
|
| 787 |
|
|
if(jump_addr ==
|
| 788 |
|
|
virt_to_bus(pb->gbuf[i].cap_cmd))
|
| 789 |
|
|
goto found;
|
| 790 |
|
|
}
|
| 791 |
|
|
}
|
| 792 |
|
|
|
| 793 |
|
|
DBG(" not found!\n");
|
| 794 |
|
|
|
| 795 |
|
|
goto out;
|
| 796 |
|
|
found:
|
| 797 |
|
|
if(pb->gbuf[i].need_pre_capture)
|
| 798 |
|
|
writel(virt_to_bus(pb->overlay_last1),
|
| 799 |
|
|
&pb->gbuf[i].pre_cmd->phy_addr);
|
| 800 |
|
|
else
|
| 801 |
|
|
writel(virt_to_bus(pb->overlay_last1),
|
| 802 |
|
|
&pb->gbuf[i].cap_cmd->phy_addr);
|
| 803 |
|
|
}
|
| 804 |
|
|
}
|
| 805 |
|
|
out:
|
| 806 |
|
|
pb->cmd_buff_inited = 1;
|
| 807 |
|
|
|
| 808 |
|
|
return;
|
| 809 |
|
|
}
|
| 810 |
|
|
|
| 811 |
|
|
static void cmd_buff(struct planb *pb)
|
| 812 |
|
|
{
|
| 813 |
|
|
int i, bpp, count, nlines, stepsize, interlace;
|
| 814 |
|
|
unsigned long base, jump, addr_com, addr_dep;
|
| 815 |
|
|
dbdma_cmd_ptr c1 = pb->vid_cbo.start;
|
| 816 |
|
|
dbdma_cmd_ptr c2 = pb->clip_cbo.start;
|
| 817 |
|
|
|
| 818 |
|
|
interlace = pb->win.interlace;
|
| 819 |
|
|
bpp = pb->win.bpp;
|
| 820 |
|
|
count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ?
|
| 821 |
|
|
(pb->win.swidth - pb->win.x) : pb->win.width));
|
| 822 |
|
|
nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ?
|
| 823 |
|
|
(pb->win.sheight - pb->win.y) : pb->win.height);
|
| 824 |
|
|
|
| 825 |
|
|
/* Do video in: */
|
| 826 |
|
|
|
| 827 |
|
|
/* Preamble commands: */
|
| 828 |
|
|
addr_com = virt_to_bus(c1);
|
| 829 |
|
|
addr_dep = virt_to_bus(&c1->cmd_dep);
|
| 830 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP, 0);
|
| 831 |
|
|
jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */
|
| 832 |
|
|
c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace,
|
| 833 |
|
|
pb->win.color_fmt, 1, pb);
|
| 834 |
|
|
tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16);
|
| 835 |
|
|
tab_cmd_store(c1++, addr_dep, jump);
|
| 836 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel),
|
| 837 |
|
|
PLANB_SET(FIELD_SYNC));
|
| 838 |
|
|
/* (1) wait for field sync to be set */
|
| 839 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 840 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 841 |
|
|
PLANB_SET(ODD_FIELD));
|
| 842 |
|
|
/* wait for field sync to be cleared */
|
| 843 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 844 |
|
|
/* if not odd field, wait until field sync is set again */
|
| 845 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++;
|
| 846 |
|
|
/* assert ch_sync to ch2 */
|
| 847 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch2.control),
|
| 848 |
|
|
PLANB_SET(CH_SYNC));
|
| 849 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 850 |
|
|
PLANB_SET(DMA_ABORT));
|
| 851 |
|
|
|
| 852 |
|
|
base = (pb->fb.phys + pb->fb.offset + pb->win.y * (pb->win.bpl +
|
| 853 |
|
|
pb->win.pad) + pb->win.x * bpp);
|
| 854 |
|
|
|
| 855 |
|
|
if (interlace) {
|
| 856 |
|
|
stepsize = 2;
|
| 857 |
|
|
jump = virt_to_bus(c1 + (nlines + 1) / 2);
|
| 858 |
|
|
} else {
|
| 859 |
|
|
stepsize = 1;
|
| 860 |
|
|
jump = virt_to_bus(c1 + nlines);
|
| 861 |
|
|
}
|
| 862 |
|
|
|
| 863 |
|
|
/* even field data: */
|
| 864 |
|
|
for (i=0; i < nlines; i += stepsize, c1++)
|
| 865 |
|
|
tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET,
|
| 866 |
|
|
count, base + i * (pb->win.bpl + pb->win.pad), jump);
|
| 867 |
|
|
|
| 868 |
|
|
/* For non-interlaced, we use even fields only */
|
| 869 |
|
|
if (!interlace)
|
| 870 |
|
|
goto cmd_tab_data_end;
|
| 871 |
|
|
|
| 872 |
|
|
/* Resync to odd field */
|
| 873 |
|
|
/* (2) wait for field sync to be set */
|
| 874 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 875 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 876 |
|
|
PLANB_SET(ODD_FIELD));
|
| 877 |
|
|
/* wait for field sync to be cleared */
|
| 878 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 879 |
|
|
/* if not odd field, wait until field sync is set again */
|
| 880 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++;
|
| 881 |
|
|
/* assert ch_sync to ch2 */
|
| 882 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch2.control),
|
| 883 |
|
|
PLANB_SET(CH_SYNC));
|
| 884 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 885 |
|
|
PLANB_SET(DMA_ABORT));
|
| 886 |
|
|
|
| 887 |
|
|
/* odd field data: */
|
| 888 |
|
|
jump = virt_to_bus(c1 + nlines / 2);
|
| 889 |
|
|
for (i=1; i < nlines; i += stepsize, c1++)
|
| 890 |
|
|
tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count,
|
| 891 |
|
|
base + i * (pb->win.bpl + pb->win.pad), jump);
|
| 892 |
|
|
|
| 893 |
|
|
/* And jump back to the start */
|
| 894 |
|
|
cmd_tab_data_end:
|
| 895 |
|
|
pb->overlay_last1 = c1; /* keep a pointer to the last command */
|
| 896 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, pb->vid_cbo.bus);
|
| 897 |
|
|
|
| 898 |
|
|
/* Clipmask command buffer */
|
| 899 |
|
|
|
| 900 |
|
|
/* Preamble commands: */
|
| 901 |
|
|
tab_cmd_dbdma(c2++, DBDMA_NOP, 0);
|
| 902 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.wait_sel),
|
| 903 |
|
|
PLANB_SET(CH_SYNC));
|
| 904 |
|
|
/* wait until ch1 asserts ch_sync */
|
| 905 |
|
|
tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 906 |
|
|
/* clear ch_sync asserted by ch1 */
|
| 907 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.control),
|
| 908 |
|
|
PLANB_CLR(CH_SYNC));
|
| 909 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.wait_sel),
|
| 910 |
|
|
PLANB_SET(FIELD_SYNC));
|
| 911 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel),
|
| 912 |
|
|
PLANB_SET(ODD_FIELD));
|
| 913 |
|
|
|
| 914 |
|
|
/* jump to end of even field if appropriate */
|
| 915 |
|
|
/* this points to (interlace)? pos. C: pos. B */
|
| 916 |
|
|
jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2):
|
| 917 |
|
|
virt_to_bus(c2 + nlines + 2);
|
| 918 |
|
|
/* if odd field, skip over to odd field clipmasking */
|
| 919 |
|
|
tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump);
|
| 920 |
|
|
|
| 921 |
|
|
/* even field mask: */
|
| 922 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel),
|
| 923 |
|
|
PLANB_SET(DMA_ABORT));
|
| 924 |
|
|
/* this points to pos. B */
|
| 925 |
|
|
jump = (interlace) ? virt_to_bus(c2 + nlines + 1):
|
| 926 |
|
|
virt_to_bus(c2 + nlines);
|
| 927 |
|
|
base = virt_to_bus(pb->mask);
|
| 928 |
|
|
for (i=0; i < nlines; i += stepsize, c2++)
|
| 929 |
|
|
tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96,
|
| 930 |
|
|
base + i * 96, jump);
|
| 931 |
|
|
|
| 932 |
|
|
/* For non-interlaced, we use only even fields */
|
| 933 |
|
|
if(!interlace)
|
| 934 |
|
|
goto cmd_tab_mask_end;
|
| 935 |
|
|
|
| 936 |
|
|
/* odd field mask: */
|
| 937 |
|
|
/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel),
|
| 938 |
|
|
PLANB_SET(DMA_ABORT));
|
| 939 |
|
|
/* this points to pos. B */
|
| 940 |
|
|
jump = virt_to_bus(c2 + nlines / 2);
|
| 941 |
|
|
base = virt_to_bus(pb->mask);
|
| 942 |
|
|
for (i=1; i < nlines; i += 2, c2++) /* abort if set */
|
| 943 |
|
|
tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96,
|
| 944 |
|
|
base + i * 96, jump);
|
| 945 |
|
|
|
| 946 |
|
|
/* Inform channel 1 and jump back to start */
|
| 947 |
|
|
cmd_tab_mask_end:
|
| 948 |
|
|
/* ok, I just realized this is kind of flawed. */
|
| 949 |
|
|
/* this part is reached only after odd field clipmasking. */
|
| 950 |
|
|
/* wanna clean up? */
|
| 951 |
|
|
/* wait for field sync to be set */
|
| 952 |
|
|
/* corresponds to fsync (1) of ch1 */
|
| 953 |
|
|
/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 954 |
|
|
/* restart ch1, meant to clear any dead bit or something */
|
| 955 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch1.control),
|
| 956 |
|
|
PLANB_CLR(RUN));
|
| 957 |
|
|
tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch1.control),
|
| 958 |
|
|
PLANB_SET(RUN));
|
| 959 |
|
|
pb->overlay_last2 = c2; /* keep a pointer to the last command */
|
| 960 |
|
|
/* start over even field clipmasking */
|
| 961 |
|
|
tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, pb->clip_cbo.bus);
|
| 962 |
|
|
|
| 963 |
|
|
eieio();
|
| 964 |
|
|
return;
|
| 965 |
|
|
}
|
| 966 |
|
|
|
| 967 |
|
|
/*********************************/
|
| 968 |
|
|
/* grabdisplay support functions */
|
| 969 |
|
|
/*********************************/
|
| 970 |
|
|
|
| 971 |
|
|
static inline int overlay_is_active(struct planb *pb)
|
| 972 |
|
|
{
|
| 973 |
|
|
unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd);
|
| 974 |
|
|
unsigned int caddr = (unsigned)readl(&pb->planb_base->ch1.cmdptr);
|
| 975 |
|
|
|
| 976 |
|
|
return (readl(&pb->overlay_last1->cmd_dep) == pb->vid_cbo.bus)
|
| 977 |
|
|
&& (caddr < (pb->vid_cbo.bus + size))
|
| 978 |
|
|
&& (caddr >= (unsigned)pb->vid_cbo.bus);
|
| 979 |
|
|
}
|
| 980 |
|
|
|
| 981 |
|
|
static int vgrab(struct planb *pb, struct video_mmap *mp)
|
| 982 |
|
|
{
|
| 983 |
|
|
unsigned int fr = mp->frame;
|
| 984 |
|
|
unsigned int fmt = mp->format;
|
| 985 |
|
|
unsigned int bpp = palette2fmt[fmt].bpp;
|
| 986 |
|
|
gbuf_ptr gbuf = &pb->gbuf[fr];
|
| 987 |
|
|
|
| 988 |
|
|
if(pb->rawbuf==NULL) {
|
| 989 |
|
|
int err;
|
| 990 |
|
|
if((err=grabbuf_alloc(pb)))
|
| 991 |
|
|
return err;
|
| 992 |
|
|
}
|
| 993 |
|
|
|
| 994 |
|
|
DBG("PlanB: grab %d: %dx%d fmt %d (%u)\n", pb->grabbing, mp->width,
|
| 995 |
|
|
mp->height, fmt, fr);
|
| 996 |
|
|
|
| 997 |
|
|
if(pb->grabbing >= MAX_GBUFFERS) {
|
| 998 |
|
|
DBG(" no buffer\n");
|
| 999 |
|
|
return -ENOBUFS;
|
| 1000 |
|
|
}
|
| 1001 |
|
|
if(fr > (MAX_GBUFFERS - 1) || fr < 0) {
|
| 1002 |
|
|
DBG(" invalid buffer\n");
|
| 1003 |
|
|
return -EINVAL;
|
| 1004 |
|
|
}
|
| 1005 |
|
|
if(mp->height <= 0 || mp->width <= 0) {
|
| 1006 |
|
|
DBG(" negative height or width\n");
|
| 1007 |
|
|
return -EINVAL;
|
| 1008 |
|
|
}
|
| 1009 |
|
|
if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) {
|
| 1010 |
|
|
DBG(" format out of range\n");
|
| 1011 |
|
|
return -EINVAL;
|
| 1012 |
|
|
}
|
| 1013 |
|
|
if(bpp == 0) {
|
| 1014 |
|
|
DBG(" unsupported format %d\n", mp->format);
|
| 1015 |
|
|
return -EINVAL;
|
| 1016 |
|
|
}
|
| 1017 |
|
|
if (mp->height * mp->width * bpp > PLANB_MAX_FBUF) {
|
| 1018 |
|
|
DBG(" grab bigger than buffer\n");
|
| 1019 |
|
|
return -EINVAL;
|
| 1020 |
|
|
}
|
| 1021 |
|
|
|
| 1022 |
|
|
planb_lock(pb);
|
| 1023 |
|
|
if(mp->width != gbuf->width || mp->height != gbuf->height ||
|
| 1024 |
|
|
fmt != gbuf->fmt || (gbuf->norm_switch)) {
|
| 1025 |
|
|
int i;
|
| 1026 |
|
|
#ifndef PLANB_GSCANLINE
|
| 1027 |
|
|
unsigned int osize = gbuf->width * gbuf->height *
|
| 1028 |
|
|
palette2fmt[gbuf->fmt].bpp;
|
| 1029 |
|
|
unsigned int nsize = mp->width * mp->height * bpp;
|
| 1030 |
|
|
#endif
|
| 1031 |
|
|
|
| 1032 |
|
|
DBG("PlanB: changed gwidth = %d, gheight = %d, format = %u, "
|
| 1033 |
|
|
"osize = %d, nsize = %d\n", mp->width, mp->height, fmt,
|
| 1034 |
|
|
osize, nsize);
|
| 1035 |
|
|
|
| 1036 |
|
|
/* Do we _really_ need to clear the grab buffers?? */
|
| 1037 |
|
|
#if 0
|
| 1038 |
|
|
#ifndef PLANB_GSCANLINE
|
| 1039 |
|
|
if(gbuf->norm_switch)
|
| 1040 |
|
|
nsize = 0;
|
| 1041 |
|
|
if (nsize < osize) {
|
| 1042 |
|
|
for(i = gbuf->idx; osize > 0; i++) {
|
| 1043 |
|
|
memset((void *)pb->rawbuf[i], 0, PAGE_SIZE);
|
| 1044 |
|
|
osize -= PAGE_SIZE;
|
| 1045 |
|
|
}
|
| 1046 |
|
|
}
|
| 1047 |
|
|
for(i = gbuf->l_fr_addr_idx; i <
|
| 1048 |
|
|
gbuf->l_fr_addr_idx + gbuf->lnum; i++)
|
| 1049 |
|
|
memset((void *)pb->rawbuf[i], 0, PAGE_SIZE);
|
| 1050 |
|
|
#else
|
| 1051 |
|
|
/* XXX TODO */
|
| 1052 |
|
|
/*
|
| 1053 |
|
|
if(gbuf->norm_switch)
|
| 1054 |
|
|
memset((void *)pb->gbuffer[fr], 0,
|
| 1055 |
|
|
pb->gbytes_per_line * gbuf->height);
|
| 1056 |
|
|
else {
|
| 1057 |
|
|
if(mp->
|
| 1058 |
|
|
for(i = 0; i < gbuf->height; i++) {
|
| 1059 |
|
|
memset((void *)(pb->gbuffer[fr]
|
| 1060 |
|
|
+ pb->gbytes_per_line * i
|
| 1061 |
|
|
}
|
| 1062 |
|
|
}
|
| 1063 |
|
|
*/
|
| 1064 |
|
|
#endif
|
| 1065 |
|
|
#endif /* if 0 */
|
| 1066 |
|
|
gbuf->width = mp->width;
|
| 1067 |
|
|
gbuf->height = mp->height;
|
| 1068 |
|
|
gbuf->fmt = fmt;
|
| 1069 |
|
|
gbuf->last_cmd = setup_grab_cmd(fr, pb);
|
| 1070 |
|
|
planb_pre_capture(fr, pb);
|
| 1071 |
|
|
gbuf->need_pre_capture = 1;
|
| 1072 |
|
|
gbuf->norm_switch = 0;
|
| 1073 |
|
|
} else
|
| 1074 |
|
|
gbuf->need_pre_capture = 0;
|
| 1075 |
|
|
|
| 1076 |
|
|
*gbuf->status = GBUFFER_GRABBING;
|
| 1077 |
|
|
if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) {
|
| 1078 |
|
|
|
| 1079 |
|
|
IDBG("PlanB: ch1 inactive, initiating grabbing\n");
|
| 1080 |
|
|
|
| 1081 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 1082 |
|
|
if(gbuf->need_pre_capture) {
|
| 1083 |
|
|
|
| 1084 |
|
|
DBG("PlanB: padding pre-capture sequence\n");
|
| 1085 |
|
|
|
| 1086 |
|
|
writel(virt_to_bus(gbuf->pre_cmd),
|
| 1087 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 1088 |
|
|
} else {
|
| 1089 |
|
|
tab_cmd_dbdma(gbuf->last_cmd, DBDMA_STOP, 0);
|
| 1090 |
|
|
tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0);
|
| 1091 |
|
|
/* let's be on the safe side. here is not timing critical. */
|
| 1092 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP, 0);
|
| 1093 |
|
|
writel(virt_to_bus(gbuf->cap_cmd),
|
| 1094 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 1095 |
|
|
}
|
| 1096 |
|
|
planb_dbdma_restart(&pb->planb_base->ch1);
|
| 1097 |
|
|
pb->last_fr = fr;
|
| 1098 |
|
|
} else {
|
| 1099 |
|
|
int i;
|
| 1100 |
|
|
|
| 1101 |
|
|
DBG("PlanB: ch1 active, grabbing being queued\n");
|
| 1102 |
|
|
|
| 1103 |
|
|
if((pb->last_fr == -1) || ((pb->last_fr == -2) &&
|
| 1104 |
|
|
overlay_is_active(pb))) {
|
| 1105 |
|
|
|
| 1106 |
|
|
DBG("PlanB: overlay is active, grabbing defered\n");
|
| 1107 |
|
|
|
| 1108 |
|
|
tab_cmd_dbdma(gbuf->last_cmd, DBDMA_NOP | BR_ALWAYS,
|
| 1109 |
|
|
pb->vid_cbo.bus);
|
| 1110 |
|
|
if(gbuf->need_pre_capture) {
|
| 1111 |
|
|
|
| 1112 |
|
|
DBG("PlanB: padding pre-capture sequence\n");
|
| 1113 |
|
|
|
| 1114 |
|
|
tab_cmd_store(gbuf->pre_cmd,
|
| 1115 |
|
|
virt_to_bus(&pb->overlay_last1->cmd_dep),
|
| 1116 |
|
|
pb->vid_cbo.bus);
|
| 1117 |
|
|
eieio();
|
| 1118 |
|
|
writel(virt_to_bus(gbuf->pre_cmd),
|
| 1119 |
|
|
&pb->overlay_last1->cmd_dep);
|
| 1120 |
|
|
} else {
|
| 1121 |
|
|
tab_cmd_store(gbuf->cap_cmd,
|
| 1122 |
|
|
virt_to_bus(&pb->overlay_last1->cmd_dep),
|
| 1123 |
|
|
pb->vid_cbo.bus);
|
| 1124 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1),
|
| 1125 |
|
|
DBDMA_NOP, 0);
|
| 1126 |
|
|
eieio();
|
| 1127 |
|
|
writel(virt_to_bus(gbuf->cap_cmd),
|
| 1128 |
|
|
&pb->overlay_last1->cmd_dep);
|
| 1129 |
|
|
}
|
| 1130 |
|
|
for(i = 0; overlay_is_active(pb) && i < 999; i++)
|
| 1131 |
|
|
DBG("PlanB: waiting for overlay done\n");
|
| 1132 |
|
|
tab_cmd_dbdma(pb->vid_cbo.start, DBDMA_NOP, 0);
|
| 1133 |
|
|
pb->prev_last_fr = fr;
|
| 1134 |
|
|
pb->last_fr = -2;
|
| 1135 |
|
|
} else if(pb->last_fr == -2) {
|
| 1136 |
|
|
|
| 1137 |
|
|
DBG("PlanB: mixed mode detected, grabbing"
|
| 1138 |
|
|
" will be done before activating overlay\n");
|
| 1139 |
|
|
|
| 1140 |
|
|
tab_cmd_dbdma(pb->vid_cbo.start, DBDMA_NOP, 0);
|
| 1141 |
|
|
if(gbuf->need_pre_capture) {
|
| 1142 |
|
|
|
| 1143 |
|
|
DBG("PlanB: padding pre-capture sequence\n");
|
| 1144 |
|
|
|
| 1145 |
|
|
tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].last_cmd,
|
| 1146 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1147 |
|
|
virt_to_bus(gbuf->pre_cmd));
|
| 1148 |
|
|
eieio();
|
| 1149 |
|
|
} else {
|
| 1150 |
|
|
tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0);
|
| 1151 |
|
|
if(pb->gbuf[pb->prev_last_fr].width !=
|
| 1152 |
|
|
gbuf->width
|
| 1153 |
|
|
|| pb->gbuf[pb->prev_last_fr].height !=
|
| 1154 |
|
|
gbuf->height
|
| 1155 |
|
|
|| pb->gbuf[pb->prev_last_fr].fmt !=
|
| 1156 |
|
|
gbuf->fmt)
|
| 1157 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1),
|
| 1158 |
|
|
DBDMA_NOP, 0);
|
| 1159 |
|
|
else
|
| 1160 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1),
|
| 1161 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1162 |
|
|
virt_to_bus(gbuf->cap_cmd + 16));
|
| 1163 |
|
|
tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].last_cmd,
|
| 1164 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1165 |
|
|
virt_to_bus(gbuf->cap_cmd));
|
| 1166 |
|
|
eieio();
|
| 1167 |
|
|
}
|
| 1168 |
|
|
tab_cmd_dbdma(gbuf->last_cmd, DBDMA_NOP | BR_ALWAYS,
|
| 1169 |
|
|
pb->vid_cbo.bus);
|
| 1170 |
|
|
eieio();
|
| 1171 |
|
|
pb->prev_last_fr = fr;
|
| 1172 |
|
|
pb->last_fr = -2;
|
| 1173 |
|
|
} else {
|
| 1174 |
|
|
gbuf_ptr lastgbuf = &pb->gbuf[pb->last_fr];
|
| 1175 |
|
|
|
| 1176 |
|
|
DBG("PlanB: active grabbing session detected\n");
|
| 1177 |
|
|
|
| 1178 |
|
|
if(gbuf->need_pre_capture) {
|
| 1179 |
|
|
|
| 1180 |
|
|
DBG("PlanB: padding pre-capture sequence\n");
|
| 1181 |
|
|
|
| 1182 |
|
|
tab_cmd_dbdma(lastgbuf->last_cmd,
|
| 1183 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1184 |
|
|
virt_to_bus(gbuf->pre_cmd));
|
| 1185 |
|
|
eieio();
|
| 1186 |
|
|
} else {
|
| 1187 |
|
|
tab_cmd_dbdma(gbuf->last_cmd, DBDMA_STOP, 0);
|
| 1188 |
|
|
tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0);
|
| 1189 |
|
|
if(lastgbuf->width != gbuf->width
|
| 1190 |
|
|
|| lastgbuf->height != gbuf->height
|
| 1191 |
|
|
|| lastgbuf->fmt != gbuf->fmt)
|
| 1192 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1),
|
| 1193 |
|
|
DBDMA_NOP, 0);
|
| 1194 |
|
|
else
|
| 1195 |
|
|
tab_cmd_dbdma((gbuf->cap_cmd + 1),
|
| 1196 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1197 |
|
|
virt_to_bus(gbuf->cap_cmd + 16));
|
| 1198 |
|
|
tab_cmd_dbdma(lastgbuf->last_cmd,
|
| 1199 |
|
|
DBDMA_NOP | BR_ALWAYS,
|
| 1200 |
|
|
virt_to_bus(gbuf->cap_cmd));
|
| 1201 |
|
|
eieio();
|
| 1202 |
|
|
}
|
| 1203 |
|
|
pb->last_fr = fr;
|
| 1204 |
|
|
}
|
| 1205 |
|
|
if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) {
|
| 1206 |
|
|
|
| 1207 |
|
|
DBG("PlanB: became inactive in the mean time... "
|
| 1208 |
|
|
"reactivating\n");
|
| 1209 |
|
|
|
| 1210 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 1211 |
|
|
writel(virt_to_bus(gbuf->cap_cmd),
|
| 1212 |
|
|
&pb->planb_base->ch1.cmdptr);
|
| 1213 |
|
|
planb_dbdma_restart(&pb->planb_base->ch1);
|
| 1214 |
|
|
}
|
| 1215 |
|
|
}
|
| 1216 |
|
|
pb->grabbing++;
|
| 1217 |
|
|
planb_unlock(pb);
|
| 1218 |
|
|
|
| 1219 |
|
|
return 0;
|
| 1220 |
|
|
}
|
| 1221 |
|
|
|
| 1222 |
|
|
static void planb_pre_capture(int fr, struct planb *pb)
|
| 1223 |
|
|
{
|
| 1224 |
|
|
gbuf_ptr gbuf = &pb->gbuf[fr];
|
| 1225 |
|
|
dbdma_cmd_ptr c1 = gbuf->pre_cmd;
|
| 1226 |
|
|
int height = gbuf->height;
|
| 1227 |
|
|
int interlace = (height > pb->maxlines/2)? 1: 0;
|
| 1228 |
|
|
|
| 1229 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP, 0);
|
| 1230 |
|
|
c1 = cmd_geo_setup(c1, gbuf->width, height, interlace, gbuf->fmt,
|
| 1231 |
|
|
0, pb);
|
| 1232 |
|
|
/* Sync to even field */
|
| 1233 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel),
|
| 1234 |
|
|
PLANB_SET(FIELD_SYNC));
|
| 1235 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 1236 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1237 |
|
|
PLANB_SET(ODD_FIELD));
|
| 1238 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 1239 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++;
|
| 1240 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0);
|
| 1241 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1242 |
|
|
PLANB_SET(DMA_ABORT));
|
| 1243 |
|
|
/* For non-interlaced, we use even fields only */
|
| 1244 |
|
|
if (interlace == 0)
|
| 1245 |
|
|
goto cmd_tab_data_end;
|
| 1246 |
|
|
/* Sync to odd field */
|
| 1247 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 1248 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1249 |
|
|
PLANB_SET(ODD_FIELD));
|
| 1250 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 1251 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++;
|
| 1252 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1253 |
|
|
PLANB_SET(DMA_ABORT));
|
| 1254 |
|
|
cmd_tab_data_end:
|
| 1255 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(gbuf->cap_cmd));
|
| 1256 |
|
|
|
| 1257 |
|
|
eieio();
|
| 1258 |
|
|
}
|
| 1259 |
|
|
|
| 1260 |
|
|
/* This needs some explanation.
|
| 1261 |
|
|
* What we do here is write the DBDMA commands to fill the grab buffer.
|
| 1262 |
|
|
* Since the grab buffer is made up of physically non-contiguous chunks,
|
| 1263 |
|
|
* we need to make sure to not make the DMA engine write across a chunk
|
| 1264 |
|
|
* boundary: the DMA engine needs a physically contiguous memory chunk for
|
| 1265 |
|
|
* a single scan line.
|
| 1266 |
|
|
* So all those scan lines that cross a chunk boundary are written do spare
|
| 1267 |
|
|
* scratch buffers, and we keep track of this fact.
|
| 1268 |
|
|
* Later, in the interrupt routine, we copy those scan lines (in two pieces)
|
| 1269 |
|
|
* back to where they belong in the right sequence in the grab buffer.
|
| 1270 |
|
|
*/
|
| 1271 |
|
|
static dbdma_cmd_ptr setup_grab_cmd(int fr, struct planb *pb)
|
| 1272 |
|
|
{
|
| 1273 |
|
|
int i, count, nlines, stepsize, interlace;
|
| 1274 |
|
|
#ifdef PLANB_GSCANLINE
|
| 1275 |
|
|
int scanline;
|
| 1276 |
|
|
#else
|
| 1277 |
|
|
int nlpp, leftover1;
|
| 1278 |
|
|
unsigned long base;
|
| 1279 |
|
|
#endif
|
| 1280 |
|
|
unsigned long jump;
|
| 1281 |
|
|
int pagei;
|
| 1282 |
|
|
dbdma_cmd_ptr c1;
|
| 1283 |
|
|
dbdma_cmd_ptr jump_addr;
|
| 1284 |
|
|
gbuf_ptr gbuf = &pb->gbuf[fr];
|
| 1285 |
|
|
int fmt = gbuf->fmt;
|
| 1286 |
|
|
|
| 1287 |
|
|
c1 = gbuf->cap_cmd;
|
| 1288 |
|
|
nlines = gbuf->height;
|
| 1289 |
|
|
interlace = (nlines > pb->maxlines/2) ? 1 : 0;
|
| 1290 |
|
|
count = palette2fmt[fmt].bpp * gbuf->width;
|
| 1291 |
|
|
#ifdef PLANB_GSCANLINE
|
| 1292 |
|
|
scanline = pb->gbytes_per_line;
|
| 1293 |
|
|
#else
|
| 1294 |
|
|
gbuf->lsize = count;
|
| 1295 |
|
|
gbuf->lnum = 0;
|
| 1296 |
|
|
#endif
|
| 1297 |
|
|
|
| 1298 |
|
|
/* Do video in: */
|
| 1299 |
|
|
|
| 1300 |
|
|
/* Preamble commands: */
|
| 1301 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP, 0);
|
| 1302 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++;
|
| 1303 |
|
|
c1 = cmd_geo_setup(c1, gbuf->width, nlines, interlace, fmt, 0, pb);
|
| 1304 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel),
|
| 1305 |
|
|
PLANB_SET(FIELD_SYNC));
|
| 1306 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 1307 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1308 |
|
|
PLANB_SET(ODD_FIELD));
|
| 1309 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 1310 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++;
|
| 1311 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0);
|
| 1312 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1313 |
|
|
PLANB_SET(DMA_ABORT));
|
| 1314 |
|
|
|
| 1315 |
|
|
if (interlace) {
|
| 1316 |
|
|
stepsize = 2;
|
| 1317 |
|
|
jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2;
|
| 1318 |
|
|
} else {
|
| 1319 |
|
|
stepsize = 1;
|
| 1320 |
|
|
jump_addr = c1 + TAB_FACTOR * nlines;
|
| 1321 |
|
|
}
|
| 1322 |
|
|
jump = virt_to_bus(jump_addr);
|
| 1323 |
|
|
|
| 1324 |
|
|
/* even field data: */
|
| 1325 |
|
|
|
| 1326 |
|
|
pagei = gbuf->idx;
|
| 1327 |
|
|
#ifdef PLANB_GSCANLINE
|
| 1328 |
|
|
for (i = 0; i < nlines; i += stepsize) {
|
| 1329 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count,
|
| 1330 |
|
|
virt_to_bus(pb->rawbuf[pagei + i * scanline / PAGE_SIZE]),
|
| 1331 |
|
|
jump);
|
| 1332 |
|
|
}
|
| 1333 |
|
|
#else
|
| 1334 |
|
|
i = 0;
|
| 1335 |
|
|
leftover1 = 0;
|
| 1336 |
|
|
do {
|
| 1337 |
|
|
int j;
|
| 1338 |
|
|
|
| 1339 |
|
|
base = virt_to_bus(pb->rawbuf[pagei]);
|
| 1340 |
|
|
nlpp = (PAGE_SIZE - leftover1) / count / stepsize;
|
| 1341 |
|
|
for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++)
|
| 1342 |
|
|
tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET,
|
| 1343 |
|
|
count, base + count * j * stepsize + leftover1, jump);
|
| 1344 |
|
|
if(i < nlines) {
|
| 1345 |
|
|
int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1;
|
| 1346 |
|
|
|
| 1347 |
|
|
if(lov0 == 0)
|
| 1348 |
|
|
leftover1 = 0;
|
| 1349 |
|
|
else {
|
| 1350 |
|
|
if(lov0 >= count) {
|
| 1351 |
|
|
/* can happen only when interlacing; then other field
|
| 1352 |
|
|
* uses up leftover space (lov0 - count). */
|
| 1353 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base
|
| 1354 |
|
|
+ count * nlpp * stepsize + leftover1, jump);
|
| 1355 |
|
|
} else {
|
| 1356 |
|
|
/* start of free space at end of page: */
|
| 1357 |
|
|
pb->l_to_addr[fr][gbuf->lnum] = pb->rawbuf[pagei]
|
| 1358 |
|
|
+ count * nlpp * stepsize + leftover1;
|
| 1359 |
|
|
/* index where continuation is: */
|
| 1360 |
|
|
pb->l_to_next_idx[fr][gbuf->lnum] = pagei + 1;
|
| 1361 |
|
|
/* How much is left to do in next page: */
|
| 1362 |
|
|
pb->l_to_next_size[fr][gbuf->lnum] = count - lov0;
|
| 1363 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count,
|
| 1364 |
|
|
virt_to_bus(pb->rawbuf[gbuf->l_fr_addr_idx
|
| 1365 |
|
|
+ gbuf->lnum]), jump);
|
| 1366 |
|
|
if(++gbuf->lnum > MAX_LNUM) {
|
| 1367 |
|
|
/* FIXME: error condition! */
|
| 1368 |
|
|
gbuf->lnum--;
|
| 1369 |
|
|
}
|
| 1370 |
|
|
}
|
| 1371 |
|
|
leftover1 = count * stepsize - lov0;
|
| 1372 |
|
|
i += stepsize;
|
| 1373 |
|
|
}
|
| 1374 |
|
|
}
|
| 1375 |
|
|
pagei++;
|
| 1376 |
|
|
} while(i < nlines);
|
| 1377 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump);
|
| 1378 |
|
|
c1 = jump_addr;
|
| 1379 |
|
|
#endif /* PLANB_GSCANLINE */
|
| 1380 |
|
|
|
| 1381 |
|
|
/* For non-interlaced, we use even fields only */
|
| 1382 |
|
|
if (!interlace)
|
| 1383 |
|
|
goto cmd_tab_data_end;
|
| 1384 |
|
|
|
| 1385 |
|
|
/* Sync to odd field */
|
| 1386 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0);
|
| 1387 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1388 |
|
|
PLANB_SET(ODD_FIELD));
|
| 1389 |
|
|
tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0);
|
| 1390 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++;
|
| 1391 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel),
|
| 1392 |
|
|
PLANB_SET(DMA_ABORT));
|
| 1393 |
|
|
|
| 1394 |
|
|
/* odd field data: */
|
| 1395 |
|
|
jump_addr = c1 + TAB_FACTOR * nlines / 2;
|
| 1396 |
|
|
jump = virt_to_bus(jump_addr);
|
| 1397 |
|
|
#ifdef PLANB_GSCANLINE
|
| 1398 |
|
|
for (i = 1; i < nlines; i += stepsize) {
|
| 1399 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count,
|
| 1400 |
|
|
virt_to_bus(pb->rawbuf[pagei
|
| 1401 |
|
|
+ i * scanline / PAGE_SIZE]), jump);
|
| 1402 |
|
|
}
|
| 1403 |
|
|
#else
|
| 1404 |
|
|
i = 1;
|
| 1405 |
|
|
leftover1 = 0;
|
| 1406 |
|
|
pagei = gbuf->idx;
|
| 1407 |
|
|
if(nlines <= 1)
|
| 1408 |
|
|
goto skip;
|
| 1409 |
|
|
do {
|
| 1410 |
|
|
int j;
|
| 1411 |
|
|
|
| 1412 |
|
|
base = virt_to_bus(pb->rawbuf[pagei]);
|
| 1413 |
|
|
nlpp = (PAGE_SIZE - leftover1) / count / stepsize;
|
| 1414 |
|
|
if(leftover1 >= count) {
|
| 1415 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count,
|
| 1416 |
|
|
base + leftover1 - count, jump);
|
| 1417 |
|
|
i += stepsize;
|
| 1418 |
|
|
}
|
| 1419 |
|
|
for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++)
|
| 1420 |
|
|
tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count,
|
| 1421 |
|
|
base + count * (j * stepsize + 1) + leftover1, jump);
|
| 1422 |
|
|
if(i < nlines) {
|
| 1423 |
|
|
int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1;
|
| 1424 |
|
|
|
| 1425 |
|
|
if(lov0 == 0)
|
| 1426 |
|
|
leftover1 = 0;
|
| 1427 |
|
|
else {
|
| 1428 |
|
|
if(lov0 > count) {
|
| 1429 |
|
|
pb->l_to_addr[fr][gbuf->lnum] = pb->rawbuf[pagei]
|
| 1430 |
|
|
+ count * (nlpp * stepsize + 1) + leftover1;
|
| 1431 |
|
|
pb->l_to_next_idx[fr][gbuf->lnum] = pagei + 1;
|
| 1432 |
|
|
pb->l_to_next_size[fr][gbuf->lnum] = count * stepsize
|
| 1433 |
|
|
- lov0;
|
| 1434 |
|
|
tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count,
|
| 1435 |
|
|
virt_to_bus(pb->rawbuf[gbuf->l_fr_addr_idx
|
| 1436 |
|
|
+ gbuf->lnum]), jump);
|
| 1437 |
|
|
if(++gbuf->lnum > MAX_LNUM) {
|
| 1438 |
|
|
/* FIXME: error condition! */
|
| 1439 |
|
|
gbuf->lnum--;
|
| 1440 |
|
|
}
|
| 1441 |
|
|
i += stepsize;
|
| 1442 |
|
|
}
|
| 1443 |
|
|
leftover1 = count * stepsize - lov0;
|
| 1444 |
|
|
}
|
| 1445 |
|
|
}
|
| 1446 |
|
|
pagei++;
|
| 1447 |
|
|
} while(i < nlines);
|
| 1448 |
|
|
skip:
|
| 1449 |
|
|
tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump);
|
| 1450 |
|
|
c1 = jump_addr;
|
| 1451 |
|
|
#endif /* PLANB_GSCANLINE */
|
| 1452 |
|
|
|
| 1453 |
|
|
cmd_tab_data_end:
|
| 1454 |
|
|
tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->intr_stat),
|
| 1455 |
|
|
(fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ);
|
| 1456 |
|
|
/* stop it */
|
| 1457 |
|
|
tab_cmd_dbdma(c1, DBDMA_STOP, 0);
|
| 1458 |
|
|
|
| 1459 |
|
|
eieio();
|
| 1460 |
|
|
return c1;
|
| 1461 |
|
|
}
|
| 1462 |
|
|
|
| 1463 |
|
|
static void planb_irq(int irq, void *dev_id, struct pt_regs * regs)
|
| 1464 |
|
|
{
|
| 1465 |
|
|
unsigned int stat, astat;
|
| 1466 |
|
|
struct planb *pb = (struct planb *)dev_id;
|
| 1467 |
|
|
|
| 1468 |
|
|
IDBG("PlanB: planb_irq()\n");
|
| 1469 |
|
|
|
| 1470 |
|
|
/* get/clear interrupt status bits */
|
| 1471 |
|
|
eieio();
|
| 1472 |
|
|
stat = readl(&pb->planb_base->intr_stat);
|
| 1473 |
|
|
astat = stat & pb->intr_mask;
|
| 1474 |
|
|
writel(PLANB_FRM_IRQ & ~astat & stat & ~PLANB_GEN_IRQ,
|
| 1475 |
|
|
&pb->planb_base->intr_stat);
|
| 1476 |
|
|
IDBG("PlanB: stat = %X, astat = %X\n", stat, astat);
|
| 1477 |
|
|
|
| 1478 |
|
|
if(astat & PLANB_FRM_IRQ) {
|
| 1479 |
|
|
unsigned int fr = stat >> 9;
|
| 1480 |
|
|
gbuf_ptr gbuf = &pb->gbuf[fr];
|
| 1481 |
|
|
#ifndef PLANB_GSCANLINE
|
| 1482 |
|
|
int i;
|
| 1483 |
|
|
#endif
|
| 1484 |
|
|
IDBG("PlanB: PLANB_FRM_IRQ\n");
|
| 1485 |
|
|
|
| 1486 |
|
|
pb->gcount++;
|
| 1487 |
|
|
|
| 1488 |
|
|
IDBG("PlanB: grab %d: fr = %d, gcount = %d\n",
|
| 1489 |
|
|
pb->grabbing, fr, pb->gcount);
|
| 1490 |
|
|
#ifndef PLANB_GSCANLINE
|
| 1491 |
|
|
/* Now that the buffer is full, copy those lines that fell
|
| 1492 |
|
|
* on a page boundary from the spare buffers back to where
|
| 1493 |
|
|
* they belong. */
|
| 1494 |
|
|
IDBG("PlanB: %d * %d bytes are being copied over\n",
|
| 1495 |
|
|
gbuf->lnum, gbuf->lsize);
|
| 1496 |
|
|
for(i = 0; i < gbuf->lnum; i++) {
|
| 1497 |
|
|
int first = gbuf->lsize - pb->l_to_next_size[fr][i];
|
| 1498 |
|
|
|
| 1499 |
|
|
memcpy(pb->l_to_addr[fr][i],
|
| 1500 |
|
|
pb->rawbuf[gbuf->l_fr_addr_idx + i],
|
| 1501 |
|
|
first);
|
| 1502 |
|
|
memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]],
|
| 1503 |
|
|
pb->rawbuf[gbuf->l_fr_addr_idx + i] + first,
|
| 1504 |
|
|
pb->l_to_next_size[fr][i]);
|
| 1505 |
|
|
}
|
| 1506 |
|
|
#endif
|
| 1507 |
|
|
*gbuf->status = GBUFFER_DONE;
|
| 1508 |
|
|
pb->grabbing--;
|
| 1509 |
|
|
wake_up_interruptible(&pb->capq);
|
| 1510 |
|
|
return;
|
| 1511 |
|
|
}
|
| 1512 |
|
|
/* incorrect interrupts? */
|
| 1513 |
|
|
pb->intr_mask = PLANB_CLR_IRQ;
|
| 1514 |
|
|
writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat);
|
| 1515 |
|
|
printk(KERN_ERR "PlanB: IRQ lockup, cleared interrupts"
|
| 1516 |
|
|
" unconditionally\n");
|
| 1517 |
|
|
}
|
| 1518 |
|
|
|
| 1519 |
|
|
/*******************************
|
| 1520 |
|
|
* Device Operations functions *
|
| 1521 |
|
|
*******************************/
|
| 1522 |
|
|
|
| 1523 |
|
|
static int planb_open(struct video_device *dev, int mode)
|
| 1524 |
|
|
{
|
| 1525 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 1526 |
|
|
int err;
|
| 1527 |
|
|
|
| 1528 |
|
|
/* first open on driver? */
|
| 1529 |
|
|
if(pb->vid_user + pb->vbi_user == 0) {
|
| 1530 |
|
|
if((err = planb_prepare_open(pb)) != 0)
|
| 1531 |
|
|
return err;
|
| 1532 |
|
|
}
|
| 1533 |
|
|
/* first open on video dev? */
|
| 1534 |
|
|
if(pb->vid_user == 0) {
|
| 1535 |
|
|
if((err = planb_prepare_video(pb)) != 0)
|
| 1536 |
|
|
return err;
|
| 1537 |
|
|
}
|
| 1538 |
|
|
pb->vid_user++;
|
| 1539 |
|
|
|
| 1540 |
|
|
DBG("PlanB: device opened\n");
|
| 1541 |
|
|
|
| 1542 |
|
|
MOD_INC_USE_COUNT;
|
| 1543 |
|
|
return 0;
|
| 1544 |
|
|
}
|
| 1545 |
|
|
|
| 1546 |
|
|
static void planb_close(struct video_device *dev)
|
| 1547 |
|
|
{
|
| 1548 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 1549 |
|
|
|
| 1550 |
|
|
planb_lock(pb);
|
| 1551 |
|
|
/* last close? then stop everything... */
|
| 1552 |
|
|
if(--pb->vid_user == 0) {
|
| 1553 |
|
|
if(pb->overlay) {
|
| 1554 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 1555 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 1556 |
|
|
pb->overlay = 0;
|
| 1557 |
|
|
}
|
| 1558 |
|
|
planb_close_video(pb);
|
| 1559 |
|
|
}
|
| 1560 |
|
|
/* last open on PlanB hardware? */
|
| 1561 |
|
|
if(pb->vid_user + pb->vbi_user == 0)
|
| 1562 |
|
|
planb_prepare_close(pb);
|
| 1563 |
|
|
planb_unlock(pb);
|
| 1564 |
|
|
|
| 1565 |
|
|
DBG("PlanB: device closed\n");
|
| 1566 |
|
|
|
| 1567 |
|
|
MOD_DEC_USE_COUNT;
|
| 1568 |
|
|
return;
|
| 1569 |
|
|
}
|
| 1570 |
|
|
|
| 1571 |
|
|
static long planb_read(struct video_device *v, char *buf, unsigned long count,
|
| 1572 |
|
|
int nonblock)
|
| 1573 |
|
|
{
|
| 1574 |
|
|
DBG("planb: read request\n");
|
| 1575 |
|
|
return -EINVAL;
|
| 1576 |
|
|
}
|
| 1577 |
|
|
|
| 1578 |
|
|
static long planb_write(struct video_device *v, const char *buf,
|
| 1579 |
|
|
unsigned long count, int nonblock)
|
| 1580 |
|
|
{
|
| 1581 |
|
|
DBG("planb: write request\n");
|
| 1582 |
|
|
return -EINVAL;
|
| 1583 |
|
|
}
|
| 1584 |
|
|
|
| 1585 |
|
|
static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
|
| 1586 |
|
|
{
|
| 1587 |
|
|
struct planb *pb=(struct planb *)dev->priv;
|
| 1588 |
|
|
|
| 1589 |
|
|
switch (cmd)
|
| 1590 |
|
|
{
|
| 1591 |
|
|
case VIDIOCGCAP:
|
| 1592 |
|
|
{
|
| 1593 |
|
|
struct video_capability b;
|
| 1594 |
|
|
|
| 1595 |
|
|
DBG("PlanB: IOCTL VIDIOCGCAP\n");
|
| 1596 |
|
|
|
| 1597 |
|
|
strcpy (b.name, pb->video_dev.name);
|
| 1598 |
|
|
b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING |
|
| 1599 |
|
|
VID_TYPE_FRAMERAM | VID_TYPE_SCALES |
|
| 1600 |
|
|
VID_TYPE_CAPTURE;
|
| 1601 |
|
|
b.channels = 2; /* composite & svhs */
|
| 1602 |
|
|
b.audios = 0;
|
| 1603 |
|
|
b.maxwidth = PLANB_MAXPIXELS;
|
| 1604 |
|
|
b.maxheight = PLANB_MAXLINES;
|
| 1605 |
|
|
b.minwidth = 32; /* wild guess */
|
| 1606 |
|
|
b.minheight = 32;
|
| 1607 |
|
|
if (copy_to_user(arg,&b,sizeof(b)))
|
| 1608 |
|
|
return -EFAULT;
|
| 1609 |
|
|
return 0;
|
| 1610 |
|
|
}
|
| 1611 |
|
|
case VIDIOCSFBUF:
|
| 1612 |
|
|
{
|
| 1613 |
|
|
struct video_buffer v;
|
| 1614 |
|
|
unsigned int fmt;
|
| 1615 |
|
|
|
| 1616 |
|
|
DBG("PlanB: IOCTL VIDIOCSFBUF\n");
|
| 1617 |
|
|
|
| 1618 |
|
|
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
|
| 1619 |
|
|
return -EPERM;
|
| 1620 |
|
|
if (copy_from_user(&v, arg, sizeof(v)))
|
| 1621 |
|
|
return -EFAULT;
|
| 1622 |
|
|
planb_lock(pb);
|
| 1623 |
|
|
switch(v.depth) {
|
| 1624 |
|
|
/* xawtv only asks for 8 bit in static grey, but
|
| 1625 |
|
|
* there is no way to know what it really means.. */
|
| 1626 |
|
|
case 8:
|
| 1627 |
|
|
fmt = VIDEO_PALETTE_GREY;
|
| 1628 |
|
|
break;
|
| 1629 |
|
|
case 15:
|
| 1630 |
|
|
fmt = VIDEO_PALETTE_RGB555;
|
| 1631 |
|
|
break;
|
| 1632 |
|
|
case 32:
|
| 1633 |
|
|
fmt = VIDEO_PALETTE_RGB32;
|
| 1634 |
|
|
break;
|
| 1635 |
|
|
/* We don't deliver these two... */
|
| 1636 |
|
|
case 16:
|
| 1637 |
|
|
case 24:
|
| 1638 |
|
|
default:
|
| 1639 |
|
|
planb_unlock(pb);
|
| 1640 |
|
|
return -EINVAL;
|
| 1641 |
|
|
}
|
| 1642 |
|
|
if (palette2fmt[fmt].bpp * v.width > v.bytesperline) {
|
| 1643 |
|
|
planb_unlock(pb);
|
| 1644 |
|
|
return -EINVAL;
|
| 1645 |
|
|
}
|
| 1646 |
|
|
pb->win.bpp = palette2fmt[fmt].bpp;
|
| 1647 |
|
|
pb->win.color_fmt = fmt;
|
| 1648 |
|
|
pb->fb.phys = (unsigned long) v.base;
|
| 1649 |
|
|
pb->win.sheight = v.height;
|
| 1650 |
|
|
pb->win.swidth = v.width;
|
| 1651 |
|
|
pb->picture.depth = pb->win.depth = v.depth;
|
| 1652 |
|
|
pb->win.bpl = pb->win.bpp * pb->win.swidth;
|
| 1653 |
|
|
pb->win.pad = v.bytesperline - pb->win.bpl;
|
| 1654 |
|
|
|
| 1655 |
|
|
DBG("PlanB: Display at %p is %d by %d, bytedepth %d,"
|
| 1656 |
|
|
" bpl %d (+ %d)\n", v.base, v.width,v.height,
|
| 1657 |
|
|
pb->win.bpp, pb->win.bpl, pb->win.pad);
|
| 1658 |
|
|
|
| 1659 |
|
|
pb->cmd_buff_inited = 0;
|
| 1660 |
|
|
if(pb->overlay) {
|
| 1661 |
|
|
suspend_overlay(pb);
|
| 1662 |
|
|
fill_cmd_buff(pb);
|
| 1663 |
|
|
resume_overlay(pb);
|
| 1664 |
|
|
}
|
| 1665 |
|
|
planb_unlock(pb);
|
| 1666 |
|
|
return 0;
|
| 1667 |
|
|
}
|
| 1668 |
|
|
case VIDIOCGFBUF:
|
| 1669 |
|
|
{
|
| 1670 |
|
|
struct video_buffer v;
|
| 1671 |
|
|
|
| 1672 |
|
|
DBG("PlanB: IOCTL VIDIOCGFBUF\n");
|
| 1673 |
|
|
|
| 1674 |
|
|
v.base = (void *)pb->fb.phys;
|
| 1675 |
|
|
v.height = pb->win.sheight;
|
| 1676 |
|
|
v.width = pb->win.swidth;
|
| 1677 |
|
|
v.depth = pb->win.depth;
|
| 1678 |
|
|
v.bytesperline = pb->win.bpl + pb->win.pad;
|
| 1679 |
|
|
if (copy_to_user(arg, &v, sizeof(v)))
|
| 1680 |
|
|
return -EFAULT;
|
| 1681 |
|
|
return 0;
|
| 1682 |
|
|
}
|
| 1683 |
|
|
case VIDIOCCAPTURE:
|
| 1684 |
|
|
{
|
| 1685 |
|
|
int i;
|
| 1686 |
|
|
|
| 1687 |
|
|
if(copy_from_user(&i, arg, sizeof(i)))
|
| 1688 |
|
|
return -EFAULT;
|
| 1689 |
|
|
if(i==0) {
|
| 1690 |
|
|
DBG("PlanB: IOCTL VIDIOCCAPTURE Stop\n");
|
| 1691 |
|
|
|
| 1692 |
|
|
if (!(pb->overlay))
|
| 1693 |
|
|
return 0;
|
| 1694 |
|
|
planb_lock(pb);
|
| 1695 |
|
|
pb->overlay = 0;
|
| 1696 |
|
|
overlay_stop(pb);
|
| 1697 |
|
|
planb_unlock(pb);
|
| 1698 |
|
|
} else {
|
| 1699 |
|
|
DBG("PlanB: IOCTL VIDIOCCAPTURE Start\n");
|
| 1700 |
|
|
|
| 1701 |
|
|
if (pb->fb.phys == 0 ||
|
| 1702 |
|
|
pb->win.width == 0 ||
|
| 1703 |
|
|
pb->win.height == 0)
|
| 1704 |
|
|
return -EINVAL;
|
| 1705 |
|
|
if (pb->overlay)
|
| 1706 |
|
|
return 0;
|
| 1707 |
|
|
planb_lock(pb);
|
| 1708 |
|
|
pb->overlay = 1;
|
| 1709 |
|
|
if(!(pb->cmd_buff_inited))
|
| 1710 |
|
|
fill_cmd_buff(pb);
|
| 1711 |
|
|
overlay_start(pb);
|
| 1712 |
|
|
planb_unlock(pb);
|
| 1713 |
|
|
}
|
| 1714 |
|
|
return 0;
|
| 1715 |
|
|
}
|
| 1716 |
|
|
case VIDIOCGCHAN:
|
| 1717 |
|
|
{
|
| 1718 |
|
|
struct video_channel v;
|
| 1719 |
|
|
|
| 1720 |
|
|
DBG("PlanB: IOCTL VIDIOCGCHAN\n");
|
| 1721 |
|
|
|
| 1722 |
|
|
if(copy_from_user(&v, arg,sizeof(v)))
|
| 1723 |
|
|
return -EFAULT;
|
| 1724 |
|
|
v.flags = 0;
|
| 1725 |
|
|
v.tuners = 0;
|
| 1726 |
|
|
v.type = VIDEO_TYPE_CAMERA;
|
| 1727 |
|
|
v.norm = pb->win.norm;
|
| 1728 |
|
|
switch(v.channel)
|
| 1729 |
|
|
{
|
| 1730 |
|
|
case 0:
|
| 1731 |
|
|
strcpy(v.name,"Composite");
|
| 1732 |
|
|
break;
|
| 1733 |
|
|
case 1:
|
| 1734 |
|
|
strcpy(v.name,"SVHS");
|
| 1735 |
|
|
break;
|
| 1736 |
|
|
default:
|
| 1737 |
|
|
return -EINVAL;
|
| 1738 |
|
|
break;
|
| 1739 |
|
|
}
|
| 1740 |
|
|
if(copy_to_user(arg,&v,sizeof(v)))
|
| 1741 |
|
|
return -EFAULT;
|
| 1742 |
|
|
|
| 1743 |
|
|
return 0;
|
| 1744 |
|
|
}
|
| 1745 |
|
|
case VIDIOCSCHAN:
|
| 1746 |
|
|
{
|
| 1747 |
|
|
struct video_channel v;
|
| 1748 |
|
|
|
| 1749 |
|
|
DBG("PlanB: IOCTL VIDIOCSCHAN\n");
|
| 1750 |
|
|
|
| 1751 |
|
|
if(copy_from_user(&v, arg, sizeof(v)))
|
| 1752 |
|
|
return -EFAULT;
|
| 1753 |
|
|
|
| 1754 |
|
|
if (v.norm != pb->win.norm) {
|
| 1755 |
|
|
int i, maxlines;
|
| 1756 |
|
|
|
| 1757 |
|
|
switch (v.norm)
|
| 1758 |
|
|
{
|
| 1759 |
|
|
case VIDEO_MODE_PAL:
|
| 1760 |
|
|
case VIDEO_MODE_SECAM:
|
| 1761 |
|
|
maxlines = PLANB_MAXLINES;
|
| 1762 |
|
|
break;
|
| 1763 |
|
|
case VIDEO_MODE_NTSC:
|
| 1764 |
|
|
maxlines = PLANB_NTSC_MAXLINES;
|
| 1765 |
|
|
break;
|
| 1766 |
|
|
default:
|
| 1767 |
|
|
DBG(" invalid norm %d.\n", v.norm);
|
| 1768 |
|
|
return -EINVAL;
|
| 1769 |
|
|
break;
|
| 1770 |
|
|
}
|
| 1771 |
|
|
planb_lock(pb);
|
| 1772 |
|
|
/* empty the grabbing queue */
|
| 1773 |
|
|
while(pb->grabbing)
|
| 1774 |
|
|
interruptible_sleep_on(&pb->capq);
|
| 1775 |
|
|
pb->maxlines = maxlines;
|
| 1776 |
|
|
pb->win.norm = v.norm;
|
| 1777 |
|
|
/* Stop overlay if running */
|
| 1778 |
|
|
suspend_overlay(pb);
|
| 1779 |
|
|
for(i = 0; i < MAX_GBUFFERS; i++)
|
| 1780 |
|
|
pb->gbuf[i].norm_switch = 1;
|
| 1781 |
|
|
/* I know it's an overkill, but.... */
|
| 1782 |
|
|
fill_cmd_buff(pb);
|
| 1783 |
|
|
/* ok, now init it accordingly */
|
| 1784 |
|
|
saa_init_regs (pb);
|
| 1785 |
|
|
/* restart overlay if it was running */
|
| 1786 |
|
|
resume_overlay(pb);
|
| 1787 |
|
|
planb_unlock(pb);
|
| 1788 |
|
|
}
|
| 1789 |
|
|
|
| 1790 |
|
|
switch(v.channel)
|
| 1791 |
|
|
{
|
| 1792 |
|
|
case 0: /* Composite */
|
| 1793 |
|
|
saa_set (SAA7196_IOCC,
|
| 1794 |
|
|
((saa_regs[pb->win.norm][SAA7196_IOCC] &
|
| 1795 |
|
|
~7) | 3), pb);
|
| 1796 |
|
|
break;
|
| 1797 |
|
|
case 1: /* SVHS */
|
| 1798 |
|
|
saa_set (SAA7196_IOCC,
|
| 1799 |
|
|
((saa_regs[pb->win.norm][SAA7196_IOCC] &
|
| 1800 |
|
|
~7) | 4), pb);
|
| 1801 |
|
|
break;
|
| 1802 |
|
|
default:
|
| 1803 |
|
|
DBG(" invalid channel %d.\n", v.channel);
|
| 1804 |
|
|
return -EINVAL;
|
| 1805 |
|
|
break;
|
| 1806 |
|
|
}
|
| 1807 |
|
|
|
| 1808 |
|
|
return 0;
|
| 1809 |
|
|
}
|
| 1810 |
|
|
case VIDIOCGPICT:
|
| 1811 |
|
|
{
|
| 1812 |
|
|
struct video_picture vp = pb->picture;
|
| 1813 |
|
|
|
| 1814 |
|
|
DBG("PlanB: IOCTL VIDIOCGPICT\n");
|
| 1815 |
|
|
|
| 1816 |
|
|
vp.palette = pb->win.color_fmt;
|
| 1817 |
|
|
if(copy_to_user(arg,&vp,sizeof(vp)))
|
| 1818 |
|
|
return -EFAULT;
|
| 1819 |
|
|
return 0;
|
| 1820 |
|
|
}
|
| 1821 |
|
|
case VIDIOCSPICT:
|
| 1822 |
|
|
{
|
| 1823 |
|
|
struct video_picture vp;
|
| 1824 |
|
|
|
| 1825 |
|
|
DBG("PlanB: IOCTL VIDIOCSPICT\n");
|
| 1826 |
|
|
|
| 1827 |
|
|
if(copy_from_user(&vp,arg,sizeof(vp)))
|
| 1828 |
|
|
return -EFAULT;
|
| 1829 |
|
|
pb->picture = vp;
|
| 1830 |
|
|
/* Should we do sanity checks here? */
|
| 1831 |
|
|
planb_lock(pb);
|
| 1832 |
|
|
saa_set (SAA7196_BRIG, (unsigned char)
|
| 1833 |
|
|
((pb->picture.brightness) >> 8), pb);
|
| 1834 |
|
|
saa_set (SAA7196_HUEC, (unsigned char)
|
| 1835 |
|
|
((pb->picture.hue) >> 8) ^ 0x80, pb);
|
| 1836 |
|
|
saa_set (SAA7196_CSAT, (unsigned char)
|
| 1837 |
|
|
((pb->picture.colour) >> 9), pb);
|
| 1838 |
|
|
saa_set (SAA7196_CONT, (unsigned char)
|
| 1839 |
|
|
((pb->picture.contrast) >> 9), pb);
|
| 1840 |
|
|
planb_unlock(pb);
|
| 1841 |
|
|
|
| 1842 |
|
|
return 0;
|
| 1843 |
|
|
}
|
| 1844 |
|
|
case VIDIOCSWIN:
|
| 1845 |
|
|
{
|
| 1846 |
|
|
struct video_window vw;
|
| 1847 |
|
|
struct video_clip clip;
|
| 1848 |
|
|
int i;
|
| 1849 |
|
|
|
| 1850 |
|
|
DBG("PlanB: IOCTL VIDIOCSWIN\n");
|
| 1851 |
|
|
|
| 1852 |
|
|
if(copy_from_user(&vw,arg,sizeof(vw)))
|
| 1853 |
|
|
return -EFAULT;
|
| 1854 |
|
|
|
| 1855 |
|
|
planb_lock(pb);
|
| 1856 |
|
|
/* Stop overlay if running */
|
| 1857 |
|
|
suspend_overlay(pb);
|
| 1858 |
|
|
pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0;
|
| 1859 |
|
|
if (pb->win.x != vw.x ||
|
| 1860 |
|
|
pb->win.y != vw.y ||
|
| 1861 |
|
|
pb->win.width != vw.width ||
|
| 1862 |
|
|
pb->win.height != vw.height ||
|
| 1863 |
|
|
!pb->cmd_buff_inited) {
|
| 1864 |
|
|
pb->win.x = vw.x;
|
| 1865 |
|
|
pb->win.y = vw.y;
|
| 1866 |
|
|
pb->win.width = vw.width;
|
| 1867 |
|
|
pb->win.height = vw.height;
|
| 1868 |
|
|
fill_cmd_buff(pb);
|
| 1869 |
|
|
}
|
| 1870 |
|
|
DBG("PlanB: Window at (%d,%d) size %dx%d\n", vw.x, vw.y, vw.width,
|
| 1871 |
|
|
vw.height);
|
| 1872 |
|
|
|
| 1873 |
|
|
/* Reset clip mask */
|
| 1874 |
|
|
memset ((void *) pb->mask, 0xff, (pb->maxlines
|
| 1875 |
|
|
* ((PLANB_MAXPIXELS + 7) & ~7)) / 8);
|
| 1876 |
|
|
/* Add any clip rects */
|
| 1877 |
|
|
for (i = 0; i < vw.clipcount; i++) {
|
| 1878 |
|
|
if (copy_from_user(&clip, vw.clips + i,
|
| 1879 |
|
|
sizeof(struct video_clip)))
|
| 1880 |
|
|
return -EFAULT;
|
| 1881 |
|
|
add_clip(pb, &clip);
|
| 1882 |
|
|
}
|
| 1883 |
|
|
/* restart overlay if it was running */
|
| 1884 |
|
|
resume_overlay(pb);
|
| 1885 |
|
|
planb_unlock(pb);
|
| 1886 |
|
|
return 0;
|
| 1887 |
|
|
}
|
| 1888 |
|
|
case VIDIOCGWIN:
|
| 1889 |
|
|
{
|
| 1890 |
|
|
struct video_window vw;
|
| 1891 |
|
|
|
| 1892 |
|
|
DBG("PlanB: IOCTL VIDIOCGWIN\n");
|
| 1893 |
|
|
|
| 1894 |
|
|
vw.x=pb->win.x;
|
| 1895 |
|
|
vw.y=pb->win.y;
|
| 1896 |
|
|
vw.width=pb->win.width;
|
| 1897 |
|
|
vw.height=pb->win.height;
|
| 1898 |
|
|
vw.chromakey=0;
|
| 1899 |
|
|
vw.flags=0;
|
| 1900 |
|
|
if(pb->win.interlace)
|
| 1901 |
|
|
vw.flags|=VIDEO_WINDOW_INTERLACE;
|
| 1902 |
|
|
if(copy_to_user(arg,&vw,sizeof(vw)))
|
| 1903 |
|
|
return -EFAULT;
|
| 1904 |
|
|
return 0;
|
| 1905 |
|
|
}
|
| 1906 |
|
|
case VIDIOCSYNC: {
|
| 1907 |
|
|
int i;
|
| 1908 |
|
|
gbuf_ptr gbuf;
|
| 1909 |
|
|
|
| 1910 |
|
|
DBG("PlanB: IOCTL VIDIOCSYNC\n");
|
| 1911 |
|
|
|
| 1912 |
|
|
if(copy_from_user((void *)&i,arg,sizeof(int)))
|
| 1913 |
|
|
return -EFAULT;
|
| 1914 |
|
|
|
| 1915 |
|
|
DBG("PlanB: sync to frame %d\n", i);
|
| 1916 |
|
|
|
| 1917 |
|
|
if(i > (MAX_GBUFFERS - 1) || i < 0)
|
| 1918 |
|
|
return -EINVAL;
|
| 1919 |
|
|
gbuf = &pb->gbuf[i];
|
| 1920 |
|
|
chk_grab:
|
| 1921 |
|
|
switch (*gbuf->status) {
|
| 1922 |
|
|
case GBUFFER_UNUSED:
|
| 1923 |
|
|
return -EINVAL;
|
| 1924 |
|
|
case GBUFFER_GRABBING:
|
| 1925 |
|
|
DBG("PlanB: waiting for grab"
|
| 1926 |
|
|
" done (%d)\n", i);
|
| 1927 |
|
|
interruptible_sleep_on(&pb->capq);
|
| 1928 |
|
|
if(signal_pending(current))
|
| 1929 |
|
|
return -EINTR;
|
| 1930 |
|
|
goto chk_grab;
|
| 1931 |
|
|
case GBUFFER_DONE:
|
| 1932 |
|
|
*gbuf->status = GBUFFER_UNUSED;
|
| 1933 |
|
|
break;
|
| 1934 |
|
|
}
|
| 1935 |
|
|
return 0;
|
| 1936 |
|
|
}
|
| 1937 |
|
|
|
| 1938 |
|
|
case VIDIOCMCAPTURE:
|
| 1939 |
|
|
{
|
| 1940 |
|
|
struct video_mmap vm;
|
| 1941 |
|
|
int fr;
|
| 1942 |
|
|
|
| 1943 |
|
|
DBG("PlanB: IOCTL VIDIOCMCAPTURE\n");
|
| 1944 |
|
|
|
| 1945 |
|
|
if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm)))
|
| 1946 |
|
|
return -EFAULT;
|
| 1947 |
|
|
fr = vm.frame;
|
| 1948 |
|
|
if(fr > (MAX_GBUFFERS - 1) || fr < 0)
|
| 1949 |
|
|
return -EINVAL;
|
| 1950 |
|
|
if (*pb->gbuf[fr].status != GBUFFER_UNUSED)
|
| 1951 |
|
|
return -EBUSY;
|
| 1952 |
|
|
|
| 1953 |
|
|
return vgrab(pb, &vm);
|
| 1954 |
|
|
}
|
| 1955 |
|
|
|
| 1956 |
|
|
case VIDIOCGMBUF:
|
| 1957 |
|
|
{
|
| 1958 |
|
|
int i;
|
| 1959 |
|
|
struct video_mbuf vm;
|
| 1960 |
|
|
|
| 1961 |
|
|
DBG("PlanB: IOCTL VIDIOCGMBUF\n");
|
| 1962 |
|
|
|
| 1963 |
|
|
memset(&vm, 0 , sizeof(vm));
|
| 1964 |
|
|
vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS;
|
| 1965 |
|
|
vm.frames = MAX_GBUFFERS;
|
| 1966 |
|
|
for(i = 0; i<MAX_GBUFFERS; i++)
|
| 1967 |
|
|
vm.offsets[i] = PLANB_MAX_FBUF * i;
|
| 1968 |
|
|
if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm)))
|
| 1969 |
|
|
return -EFAULT;
|
| 1970 |
|
|
return 0;
|
| 1971 |
|
|
}
|
| 1972 |
|
|
|
| 1973 |
|
|
case VIDIOCGUNIT:
|
| 1974 |
|
|
{
|
| 1975 |
|
|
struct video_unit vu;
|
| 1976 |
|
|
|
| 1977 |
|
|
DBG("PlanB: IOCTL VIDIOCGUNIT\n");
|
| 1978 |
|
|
|
| 1979 |
|
|
vu.video=pb->video_dev.minor;
|
| 1980 |
|
|
vu.vbi=pb->vbi_dev.minor;
|
| 1981 |
|
|
vu.radio=VIDEO_NO_UNIT;
|
| 1982 |
|
|
vu.audio=VIDEO_NO_UNIT;
|
| 1983 |
|
|
vu.teletext=VIDEO_NO_UNIT;
|
| 1984 |
|
|
if(copy_to_user((void *)arg, (void *)&vu, sizeof(vu)))
|
| 1985 |
|
|
return -EFAULT;
|
| 1986 |
|
|
return 0;
|
| 1987 |
|
|
}
|
| 1988 |
|
|
|
| 1989 |
|
|
case PLANBIOCGSAAREGS:
|
| 1990 |
|
|
{
|
| 1991 |
|
|
struct planb_saa_regs preg;
|
| 1992 |
|
|
|
| 1993 |
|
|
DBG("PlanB: IOCTL PLANBIOCGSAAREGS\n");
|
| 1994 |
|
|
|
| 1995 |
|
|
if(copy_from_user(&preg, arg, sizeof(preg)))
|
| 1996 |
|
|
return -EFAULT;
|
| 1997 |
|
|
if(preg.addr >= SAA7196_NUMREGS)
|
| 1998 |
|
|
return -EINVAL;
|
| 1999 |
|
|
preg.val = saa_regs[pb->win.norm][preg.addr];
|
| 2000 |
|
|
if(copy_to_user((void *)arg, (void *)&preg,
|
| 2001 |
|
|
sizeof(preg)))
|
| 2002 |
|
|
return -EFAULT;
|
| 2003 |
|
|
return 0;
|
| 2004 |
|
|
}
|
| 2005 |
|
|
|
| 2006 |
|
|
case PLANBIOCSSAAREGS:
|
| 2007 |
|
|
{
|
| 2008 |
|
|
struct planb_saa_regs preg;
|
| 2009 |
|
|
|
| 2010 |
|
|
DBG("PlanB: IOCTL PLANBIOCSSAAREGS\n");
|
| 2011 |
|
|
|
| 2012 |
|
|
if(copy_from_user(&preg, arg, sizeof(preg)))
|
| 2013 |
|
|
return -EFAULT;
|
| 2014 |
|
|
if(preg.addr >= SAA7196_NUMREGS)
|
| 2015 |
|
|
return -EINVAL;
|
| 2016 |
|
|
saa_set (preg.addr, preg.val, pb);
|
| 2017 |
|
|
return 0;
|
| 2018 |
|
|
}
|
| 2019 |
|
|
|
| 2020 |
|
|
case PLANBIOCGSTAT:
|
| 2021 |
|
|
{
|
| 2022 |
|
|
struct planb_stat_regs pstat;
|
| 2023 |
|
|
|
| 2024 |
|
|
DBG("PlanB: IOCTL PLANBIOCGSTAT\n");
|
| 2025 |
|
|
|
| 2026 |
|
|
pstat.ch1_stat = readl(&pb->planb_base->ch1.status);
|
| 2027 |
|
|
pstat.ch2_stat = readl(&pb->planb_base->ch2.status);
|
| 2028 |
|
|
pstat.ch1_cmdbase = (unsigned long)pb->vid_cbo.start;
|
| 2029 |
|
|
pstat.ch2_cmdbase = (unsigned long)pb->clip_cbo.start;
|
| 2030 |
|
|
pstat.ch1_cmdptr = readl(&pb->planb_base->ch1.cmdptr);
|
| 2031 |
|
|
pstat.ch2_cmdptr = readl(&pb->planb_base->ch2.cmdptr);
|
| 2032 |
|
|
pstat.saa_stat0 = saa_status(0, pb);
|
| 2033 |
|
|
pstat.saa_stat1 = saa_status(1, pb);
|
| 2034 |
|
|
|
| 2035 |
|
|
if(copy_to_user((void *)arg, (void *)&pstat,
|
| 2036 |
|
|
sizeof(pstat)))
|
| 2037 |
|
|
return -EFAULT;
|
| 2038 |
|
|
return 0;
|
| 2039 |
|
|
}
|
| 2040 |
|
|
|
| 2041 |
|
|
case PLANBIOCSMODE: {
|
| 2042 |
|
|
int v;
|
| 2043 |
|
|
|
| 2044 |
|
|
DBG("PlanB: IOCTL PLANBIOCSMODE\n");
|
| 2045 |
|
|
|
| 2046 |
|
|
if(copy_from_user(&v, arg, sizeof(v)))
|
| 2047 |
|
|
return -EFAULT;
|
| 2048 |
|
|
|
| 2049 |
|
|
switch(v)
|
| 2050 |
|
|
{
|
| 2051 |
|
|
case PLANB_TV_MODE:
|
| 2052 |
|
|
saa_set (SAA7196_STDC,
|
| 2053 |
|
|
(saa_regs[pb->win.norm][SAA7196_STDC] &
|
| 2054 |
|
|
0x7f), pb);
|
| 2055 |
|
|
break;
|
| 2056 |
|
|
case PLANB_VTR_MODE:
|
| 2057 |
|
|
saa_set (SAA7196_STDC,
|
| 2058 |
|
|
(saa_regs[pb->win.norm][SAA7196_STDC] |
|
| 2059 |
|
|
0x80), pb);
|
| 2060 |
|
|
break;
|
| 2061 |
|
|
default:
|
| 2062 |
|
|
return -EINVAL;
|
| 2063 |
|
|
break;
|
| 2064 |
|
|
}
|
| 2065 |
|
|
pb->win.mode = v;
|
| 2066 |
|
|
return 0;
|
| 2067 |
|
|
}
|
| 2068 |
|
|
case PLANBIOCGMODE: {
|
| 2069 |
|
|
int v=pb->win.mode;
|
| 2070 |
|
|
|
| 2071 |
|
|
DBG("PlanB: IOCTL PLANBIOCGMODE\n");
|
| 2072 |
|
|
|
| 2073 |
|
|
if(copy_to_user(arg,&v,sizeof(v)))
|
| 2074 |
|
|
return -EFAULT;
|
| 2075 |
|
|
return 0;
|
| 2076 |
|
|
}
|
| 2077 |
|
|
#ifdef PLANB_GSCANLINE
|
| 2078 |
|
|
case PLANBG_GRAB_BPL: {
|
| 2079 |
|
|
int v=pb->gbytes_per_line;
|
| 2080 |
|
|
|
| 2081 |
|
|
DBG("PlanB: IOCTL PLANBG_GRAB_BPL\n");
|
| 2082 |
|
|
|
| 2083 |
|
|
if(copy_to_user(arg,&v,sizeof(v)))
|
| 2084 |
|
|
return -EFAULT;
|
| 2085 |
|
|
return 0;
|
| 2086 |
|
|
}
|
| 2087 |
|
|
#endif /* PLANB_GSCANLINE */
|
| 2088 |
|
|
|
| 2089 |
|
|
/* These serve only for debugging... */
|
| 2090 |
|
|
#ifdef DEBUG
|
| 2091 |
|
|
case PLANB_INTR_DEBUG: {
|
| 2092 |
|
|
int i;
|
| 2093 |
|
|
|
| 2094 |
|
|
DBG("PlanB: IOCTL PLANB_INTR_DEBUG\n");
|
| 2095 |
|
|
|
| 2096 |
|
|
if(copy_from_user(&i, arg, sizeof(i)))
|
| 2097 |
|
|
return -EFAULT;
|
| 2098 |
|
|
|
| 2099 |
|
|
/* avoid hang ups all together */
|
| 2100 |
|
|
for (i = 0; i < MAX_GBUFFERS; i++) {
|
| 2101 |
|
|
if(*pb->gbuf[i].status == GBUFFER_GRABBING) {
|
| 2102 |
|
|
*pb->gbuf[i].status = GBUFFER_DONE;
|
| 2103 |
|
|
}
|
| 2104 |
|
|
}
|
| 2105 |
|
|
if(pb->grabbing)
|
| 2106 |
|
|
pb->grabbing--;
|
| 2107 |
|
|
wake_up_interruptible(&pb->capq);
|
| 2108 |
|
|
return 0;
|
| 2109 |
|
|
}
|
| 2110 |
|
|
case PLANB_INV_REGS: {
|
| 2111 |
|
|
int i;
|
| 2112 |
|
|
struct planb_any_regs any;
|
| 2113 |
|
|
|
| 2114 |
|
|
DBG("PlanB: IOCTL PLANB_INV_REGS\n");
|
| 2115 |
|
|
|
| 2116 |
|
|
if(copy_from_user(&any, arg, sizeof(any)))
|
| 2117 |
|
|
return -EFAULT;
|
| 2118 |
|
|
if(any.offset < 0 || any.offset + any.bytes > 0x400)
|
| 2119 |
|
|
return -EINVAL;
|
| 2120 |
|
|
if(any.bytes > 128)
|
| 2121 |
|
|
return -EINVAL;
|
| 2122 |
|
|
for (i = 0; i < any.bytes; i++) {
|
| 2123 |
|
|
any.data[i] =
|
| 2124 |
|
|
readb((unsigned char *)pb->planb_base
|
| 2125 |
|
|
+ any.offset + i);
|
| 2126 |
|
|
}
|
| 2127 |
|
|
if(copy_to_user(arg,&any,sizeof(any)))
|
| 2128 |
|
|
return -EFAULT;
|
| 2129 |
|
|
return 0;
|
| 2130 |
|
|
}
|
| 2131 |
|
|
case PLANBIOCGDBDMABUF:
|
| 2132 |
|
|
{
|
| 2133 |
|
|
struct planb_buf_regs buf;
|
| 2134 |
|
|
dbdma_cmd_ptr dc;
|
| 2135 |
|
|
int i;
|
| 2136 |
|
|
|
| 2137 |
|
|
DBG("PlanB: IOCTL PLANBIOCGDBDMABUF\n");
|
| 2138 |
|
|
|
| 2139 |
|
|
if(copy_from_user(&buf, arg, sizeof(buf)))
|
| 2140 |
|
|
return -EFAULT;
|
| 2141 |
|
|
buf.end &= ~0xf;
|
| 2142 |
|
|
if( (buf.start < 0) || (buf.end < 0x10) ||
|
| 2143 |
|
|
(buf.end < buf.start+0x10) ||
|
| 2144 |
|
|
(buf.end > 2*pb->tab_size) )
|
| 2145 |
|
|
return -EINVAL;
|
| 2146 |
|
|
|
| 2147 |
|
|
printk ("PlanB DBDMA command buffer:\n");
|
| 2148 |
|
|
for (i=(buf.start>>4); i<=(buf.end>>4); i++) {
|
| 2149 |
|
|
printk(" 0x%04x:", i<<4);
|
| 2150 |
|
|
dc = pb->vid_cbo.start + i;
|
| 2151 |
|
|
printk (" %04x %04x %08x %08x %04x %04x\n",
|
| 2152 |
|
|
dc->req_count, dc->command, dc->phy_addr,
|
| 2153 |
|
|
dc->cmd_dep, dc->res_count, dc->xfer_status);
|
| 2154 |
|
|
}
|
| 2155 |
|
|
return 0;
|
| 2156 |
|
|
}
|
| 2157 |
|
|
#endif /* DEBUG */
|
| 2158 |
|
|
|
| 2159 |
|
|
default:
|
| 2160 |
|
|
{
|
| 2161 |
|
|
DBG("PlanB: Unimplemented IOCTL: %d (0x%x)\n", cmd, cmd);
|
| 2162 |
|
|
return -ENOIOCTLCMD;
|
| 2163 |
|
|
}
|
| 2164 |
|
|
/* Some IOCTLs are currently unsupported on PlanB */
|
| 2165 |
|
|
case VIDIOCGTUNER: {
|
| 2166 |
|
|
DBG("PlanB: IOCTL VIDIOCGTUNER\n");
|
| 2167 |
|
|
goto unimplemented; }
|
| 2168 |
|
|
case VIDIOCSTUNER: {
|
| 2169 |
|
|
DBG("PlanB: IOCTL VIDIOCSTUNER\n");
|
| 2170 |
|
|
goto unimplemented; }
|
| 2171 |
|
|
case VIDIOCSFREQ: {
|
| 2172 |
|
|
DBG("PlanB: IOCTL VIDIOCSFREQ\n");
|
| 2173 |
|
|
goto unimplemented; }
|
| 2174 |
|
|
case VIDIOCGFREQ: {
|
| 2175 |
|
|
DBG("PlanB: IOCTL VIDIOCGFREQ\n");
|
| 2176 |
|
|
goto unimplemented; }
|
| 2177 |
|
|
case VIDIOCKEY: {
|
| 2178 |
|
|
DBG("PlanB: IOCTL VIDIOCKEY\n");
|
| 2179 |
|
|
goto unimplemented; }
|
| 2180 |
|
|
case VIDIOCSAUDIO: {
|
| 2181 |
|
|
DBG("PlanB: IOCTL VIDIOCSAUDIO\n");
|
| 2182 |
|
|
goto unimplemented; }
|
| 2183 |
|
|
case VIDIOCGAUDIO: {
|
| 2184 |
|
|
DBG("PlanB: IOCTL VIDIOCGAUDIO\n");
|
| 2185 |
|
|
goto unimplemented; }
|
| 2186 |
|
|
unimplemented:
|
| 2187 |
|
|
DBG(" Unimplemented\n");
|
| 2188 |
|
|
return -ENOIOCTLCMD;
|
| 2189 |
|
|
}
|
| 2190 |
|
|
return 0;
|
| 2191 |
|
|
}
|
| 2192 |
|
|
|
| 2193 |
|
|
static int planb_mmap(struct video_device *dev, const char *adr, unsigned long size)
|
| 2194 |
|
|
{
|
| 2195 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 2196 |
|
|
unsigned long start = (unsigned long)adr;
|
| 2197 |
|
|
int i;
|
| 2198 |
|
|
|
| 2199 |
|
|
if (size > MAX_GBUFFERS * PLANB_MAX_FBUF)
|
| 2200 |
|
|
return -EINVAL;
|
| 2201 |
|
|
if (!pb->rawbuf) {
|
| 2202 |
|
|
int err;
|
| 2203 |
|
|
if((err=grabbuf_alloc(pb)))
|
| 2204 |
|
|
return err;
|
| 2205 |
|
|
}
|
| 2206 |
|
|
for (i = 0; i < pb->rawbuf_nchunks; i++) {
|
| 2207 |
|
|
if (remap_page_range(start, virt_to_phys((void *)pb->rawbuf[i]),
|
| 2208 |
|
|
PAGE_SIZE, PAGE_SHARED))
|
| 2209 |
|
|
return -EAGAIN;
|
| 2210 |
|
|
start += PAGE_SIZE;
|
| 2211 |
|
|
if (size <= PAGE_SIZE)
|
| 2212 |
|
|
break;
|
| 2213 |
|
|
size -= PAGE_SIZE;
|
| 2214 |
|
|
}
|
| 2215 |
|
|
return 0;
|
| 2216 |
|
|
}
|
| 2217 |
|
|
|
| 2218 |
|
|
/**********************************
|
| 2219 |
|
|
* VBI device operation functions *
|
| 2220 |
|
|
**********************************/
|
| 2221 |
|
|
|
| 2222 |
|
|
static long planb_vbi_read(struct video_device *dev, char *buf,
|
| 2223 |
|
|
unsigned long count, int nonblock)
|
| 2224 |
|
|
{
|
| 2225 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 2226 |
|
|
int q,todo;
|
| 2227 |
|
|
DECLARE_WAITQUEUE(wait, current);
|
| 2228 |
|
|
|
| 2229 |
|
|
/* Dummy for now */
|
| 2230 |
|
|
printk ("PlanB: VBI read %li bytes.\n", count);
|
| 2231 |
|
|
return (0);
|
| 2232 |
|
|
|
| 2233 |
|
|
todo=count;
|
| 2234 |
|
|
while (todo && todo>(q=VBIBUF_SIZE-pb->vbip))
|
| 2235 |
|
|
{
|
| 2236 |
|
|
if(copy_to_user((void *) buf, (void *) pb->vbibuf+pb->vbip, q))
|
| 2237 |
|
|
return -EFAULT;
|
| 2238 |
|
|
todo-=q;
|
| 2239 |
|
|
buf+=q;
|
| 2240 |
|
|
|
| 2241 |
|
|
add_wait_queue(&pb->vbiq, &wait);
|
| 2242 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
| 2243 |
|
|
if (todo && q==VBIBUF_SIZE-pb->vbip) {
|
| 2244 |
|
|
if(nonblock) {
|
| 2245 |
|
|
remove_wait_queue(&pb->vbiq, &wait);
|
| 2246 |
|
|
current->state = TASK_RUNNING;
|
| 2247 |
|
|
if(count==todo)
|
| 2248 |
|
|
return -EWOULDBLOCK;
|
| 2249 |
|
|
return count-todo;
|
| 2250 |
|
|
}
|
| 2251 |
|
|
schedule();
|
| 2252 |
|
|
if(signal_pending(current)) {
|
| 2253 |
|
|
remove_wait_queue(&pb->vbiq, &wait);
|
| 2254 |
|
|
current->state = TASK_RUNNING;
|
| 2255 |
|
|
if(todo==count)
|
| 2256 |
|
|
return -EINTR;
|
| 2257 |
|
|
else
|
| 2258 |
|
|
return count-todo;
|
| 2259 |
|
|
}
|
| 2260 |
|
|
}
|
| 2261 |
|
|
remove_wait_queue(&pb->vbiq, &wait);
|
| 2262 |
|
|
current->state = TASK_RUNNING;
|
| 2263 |
|
|
}
|
| 2264 |
|
|
if (todo) {
|
| 2265 |
|
|
if(copy_to_user((void *) buf, (void *) pb->vbibuf+pb->vbip,
|
| 2266 |
|
|
todo))
|
| 2267 |
|
|
return -EFAULT;
|
| 2268 |
|
|
pb->vbip+=todo;
|
| 2269 |
|
|
}
|
| 2270 |
|
|
return count;
|
| 2271 |
|
|
}
|
| 2272 |
|
|
|
| 2273 |
|
|
static unsigned int planb_vbi_poll(struct video_device *dev,
|
| 2274 |
|
|
struct file *file, poll_table *wait)
|
| 2275 |
|
|
{
|
| 2276 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 2277 |
|
|
unsigned int mask = 0;
|
| 2278 |
|
|
|
| 2279 |
|
|
printk ("PlanB: VBI poll.\n");
|
| 2280 |
|
|
poll_wait(file, &pb->vbiq, wait);
|
| 2281 |
|
|
|
| 2282 |
|
|
if (pb->vbip < VBIBUF_SIZE)
|
| 2283 |
|
|
mask |= (POLLIN | POLLRDNORM);
|
| 2284 |
|
|
|
| 2285 |
|
|
return mask;
|
| 2286 |
|
|
}
|
| 2287 |
|
|
|
| 2288 |
|
|
static int planb_vbi_open(struct video_device *dev, int flags)
|
| 2289 |
|
|
{
|
| 2290 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 2291 |
|
|
int err;
|
| 2292 |
|
|
|
| 2293 |
|
|
/* first open on the driver? */
|
| 2294 |
|
|
if(pb->vid_user + pb->vbi_user == 0) {
|
| 2295 |
|
|
if((err = planb_prepare_open(pb)) != 0)
|
| 2296 |
|
|
return err;
|
| 2297 |
|
|
}
|
| 2298 |
|
|
/* first open on the vbi device? */
|
| 2299 |
|
|
if(pb->vbi_user == 1) {
|
| 2300 |
|
|
if((err = planb_prepare_vbi(pb)) != 0)
|
| 2301 |
|
|
return err;
|
| 2302 |
|
|
}
|
| 2303 |
|
|
++pb->vbi_user;
|
| 2304 |
|
|
|
| 2305 |
|
|
DBG("PlanB: VBI open\n");
|
| 2306 |
|
|
|
| 2307 |
|
|
MOD_INC_USE_COUNT;
|
| 2308 |
|
|
return 0;
|
| 2309 |
|
|
}
|
| 2310 |
|
|
|
| 2311 |
|
|
static void planb_vbi_close(struct video_device *dev)
|
| 2312 |
|
|
{
|
| 2313 |
|
|
struct planb *pb = (struct planb *)dev->priv;
|
| 2314 |
|
|
|
| 2315 |
|
|
/* last close on vbi device? */
|
| 2316 |
|
|
if(--pb->vbi_user == 0) {
|
| 2317 |
|
|
planb_close_vbi(pb);
|
| 2318 |
|
|
}
|
| 2319 |
|
|
/* last close on any planb device? */
|
| 2320 |
|
|
if(pb->vid_user + pb->vbi_user == 0) {
|
| 2321 |
|
|
planb_prepare_close(pb);
|
| 2322 |
|
|
}
|
| 2323 |
|
|
|
| 2324 |
|
|
DBG("PlanB: VBI close\n");
|
| 2325 |
|
|
|
| 2326 |
|
|
MOD_DEC_USE_COUNT;
|
| 2327 |
|
|
return;
|
| 2328 |
|
|
}
|
| 2329 |
|
|
|
| 2330 |
|
|
static int planb_vbi_ioctl(struct video_device *dev, unsigned int cmd,
|
| 2331 |
|
|
void *arg)
|
| 2332 |
|
|
{
|
| 2333 |
|
|
switch (cmd) {
|
| 2334 |
|
|
/* This is only for alevt */
|
| 2335 |
|
|
case BTTV_VBISIZE:
|
| 2336 |
|
|
DBG("PlanB: IOCTL BTTV_VBISIZE.\n");
|
| 2337 |
|
|
return VBIBUF_SIZE;
|
| 2338 |
|
|
default:
|
| 2339 |
|
|
DBG("PlanB: Unimplemented VBI IOCTL no. %i.\n", cmd);
|
| 2340 |
|
|
return -EINVAL;
|
| 2341 |
|
|
}
|
| 2342 |
|
|
}
|
| 2343 |
|
|
|
| 2344 |
|
|
static struct video_device planb_template=
|
| 2345 |
|
|
{
|
| 2346 |
|
|
owner: THIS_MODULE,
|
| 2347 |
|
|
name: PLANB_DEVICE_NAME,
|
| 2348 |
|
|
type: VID_TYPE_CAPTURE|VID_TYPE_OVERLAY,
|
| 2349 |
|
|
hardware: VID_HARDWARE_PLANB,
|
| 2350 |
|
|
open: planb_open,
|
| 2351 |
|
|
close: planb_close,
|
| 2352 |
|
|
read: planb_read,
|
| 2353 |
|
|
write: planb_write, /* not implemented */
|
| 2354 |
|
|
ioctl: planb_ioctl,
|
| 2355 |
|
|
mmap: planb_mmap, /* mmap? */
|
| 2356 |
|
|
};
|
| 2357 |
|
|
|
| 2358 |
|
|
static struct video_device planb_vbi_template=
|
| 2359 |
|
|
{
|
| 2360 |
|
|
owner: THIS_MODULE,
|
| 2361 |
|
|
name: PLANB_VBI_NAME,
|
| 2362 |
|
|
type: VID_TYPE_CAPTURE|VID_TYPE_TELETEXT,
|
| 2363 |
|
|
hardware: VID_HARDWARE_PLANB,
|
| 2364 |
|
|
open: planb_vbi_open,
|
| 2365 |
|
|
close: planb_vbi_close,
|
| 2366 |
|
|
read: planb_vbi_read,
|
| 2367 |
|
|
write: planb_write, /* not implemented */
|
| 2368 |
|
|
poll: planb_vbi_poll,
|
| 2369 |
|
|
ioctl: planb_vbi_ioctl,
|
| 2370 |
|
|
};
|
| 2371 |
|
|
|
| 2372 |
|
|
static int __devinit init_planb(struct planb *pb)
|
| 2373 |
|
|
{
|
| 2374 |
|
|
unsigned char saa_rev;
|
| 2375 |
|
|
int i, result;
|
| 2376 |
|
|
unsigned long flags;
|
| 2377 |
|
|
|
| 2378 |
|
|
printk(KERN_INFO "PlanB: PowerMacintosh video input driver rev. %s\n", PLANB_REV);
|
| 2379 |
|
|
|
| 2380 |
|
|
pb->video_dev.minor = -1;
|
| 2381 |
|
|
pb->vid_user = 0;
|
| 2382 |
|
|
|
| 2383 |
|
|
/* Simple sanity check */
|
| 2384 |
|
|
if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) {
|
| 2385 |
|
|
printk(KERN_ERR "PlanB: Option(s) invalid\n");
|
| 2386 |
|
|
return -2;
|
| 2387 |
|
|
}
|
| 2388 |
|
|
memset ((void *) &pb->win, 0, sizeof (struct planb_window));
|
| 2389 |
|
|
pb->win.norm = def_norm;
|
| 2390 |
|
|
pb->win.mode = PLANB_TV_MODE; /* TV mode */
|
| 2391 |
|
|
pb->win.interlace = 1;
|
| 2392 |
|
|
pb->win.x = 0;
|
| 2393 |
|
|
pb->win.y = 0;
|
| 2394 |
|
|
pb->win.width = 768; /* 640 */
|
| 2395 |
|
|
pb->win.height = 576; /* 480 */
|
| 2396 |
|
|
pb->win.pad = 0;
|
| 2397 |
|
|
pb->win.bpp = 4;
|
| 2398 |
|
|
pb->win.depth = 32;
|
| 2399 |
|
|
pb->win.color_fmt = VIDEO_PALETTE_RGB32;
|
| 2400 |
|
|
pb->win.bpl = 1024 * pb->win.bpp;
|
| 2401 |
|
|
pb->win.swidth = 1024;
|
| 2402 |
|
|
pb->win.sheight = 768;
|
| 2403 |
|
|
pb->maxlines = 576;
|
| 2404 |
|
|
#ifdef PLANB_GSCANLINE
|
| 2405 |
|
|
if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE
|
| 2406 |
|
|
|| (pb->gbytes_per_line <= 0))
|
| 2407 |
|
|
return -3;
|
| 2408 |
|
|
else {
|
| 2409 |
|
|
/* page align pb->gbytes_per_line for DMA purpose */
|
| 2410 |
|
|
for(i = PAGE_SIZE; pb->gbytes_per_line < (i >> 1);)
|
| 2411 |
|
|
i >>= 1;
|
| 2412 |
|
|
pb->gbytes_per_line = i;
|
| 2413 |
|
|
}
|
| 2414 |
|
|
#endif
|
| 2415 |
|
|
pb->tab_size = PLANB_MAXLINES + 40;
|
| 2416 |
|
|
pb->suspend = 0;
|
| 2417 |
|
|
init_MUTEX(&pb->lock);
|
| 2418 |
|
|
pb->vid_cbo.start = 0;
|
| 2419 |
|
|
pb->clip_cbo.start = 0;
|
| 2420 |
|
|
pb->mask = 0;
|
| 2421 |
|
|
pb->vid_raw = 0;
|
| 2422 |
|
|
pb->overlay = 0;
|
| 2423 |
|
|
init_waitqueue_head(&pb->suspendq);
|
| 2424 |
|
|
pb->cmd_buff_inited = 0;
|
| 2425 |
|
|
pb->fb.phys = 0;
|
| 2426 |
|
|
pb->fb.offset = 0;
|
| 2427 |
|
|
|
| 2428 |
|
|
/* VBI stuff: */
|
| 2429 |
|
|
pb->vbi_dev.minor = -1;
|
| 2430 |
|
|
pb->vbi_user = 0;
|
| 2431 |
|
|
pb->vbirunning = 0;
|
| 2432 |
|
|
pb->vbip = 0;
|
| 2433 |
|
|
pb->vbibuf = 0;
|
| 2434 |
|
|
init_waitqueue_head(&pb->vbiq);
|
| 2435 |
|
|
|
| 2436 |
|
|
/* Reset DMA controllers */
|
| 2437 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 2438 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 2439 |
|
|
|
| 2440 |
|
|
saa_rev = (saa_status(0, pb) & 0xf0) >> 4;
|
| 2441 |
|
|
printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", saa_rev);
|
| 2442 |
|
|
/* Initialize the SAA registers in memory and on chip */
|
| 2443 |
|
|
saa_init_regs (pb);
|
| 2444 |
|
|
|
| 2445 |
|
|
/* clear interrupt mask */
|
| 2446 |
|
|
pb->intr_mask = PLANB_CLR_IRQ;
|
| 2447 |
|
|
|
| 2448 |
|
|
save_flags(flags); cli();
|
| 2449 |
|
|
result = request_irq(pb->irq, planb_irq, 0, "PlanB", (void *)pb);
|
| 2450 |
|
|
if (result < 0) {
|
| 2451 |
|
|
if (result==-EINVAL)
|
| 2452 |
|
|
printk(KERN_ERR "PlanB: Bad irq number (%d) "
|
| 2453 |
|
|
"or handler\n", (int)pb->irq);
|
| 2454 |
|
|
else if (result==-EBUSY)
|
| 2455 |
|
|
printk(KERN_ERR "PlanB: I don't know why, "
|
| 2456 |
|
|
"but IRQ %d is busy\n", (int)pb->irq);
|
| 2457 |
|
|
restore_flags(flags);
|
| 2458 |
|
|
return result;
|
| 2459 |
|
|
}
|
| 2460 |
|
|
disable_irq(pb->irq);
|
| 2461 |
|
|
restore_flags(flags);
|
| 2462 |
|
|
|
| 2463 |
|
|
pb->picture.brightness=0x90<<8;
|
| 2464 |
|
|
pb->picture.contrast = 0x70 << 8;
|
| 2465 |
|
|
pb->picture.colour = 0x70<<8;
|
| 2466 |
|
|
pb->picture.hue = 0x8000;
|
| 2467 |
|
|
pb->picture.whiteness = 0;
|
| 2468 |
|
|
pb->picture.depth = pb->win.depth;
|
| 2469 |
|
|
|
| 2470 |
|
|
init_waitqueue_head(&pb->capq);
|
| 2471 |
|
|
for(i=0; i<MAX_GBUFFERS; i++) {
|
| 2472 |
|
|
gbuf_ptr gbuf = &pb->gbuf[i];
|
| 2473 |
|
|
|
| 2474 |
|
|
gbuf->idx = PLANB_MAX_FBUF * i / PAGE_SIZE;
|
| 2475 |
|
|
gbuf->width=0;
|
| 2476 |
|
|
gbuf->height=0;
|
| 2477 |
|
|
gbuf->fmt=0;
|
| 2478 |
|
|
gbuf->cap_cmd=NULL;
|
| 2479 |
|
|
#ifndef PLANB_GSCANLINE
|
| 2480 |
|
|
gbuf->l_fr_addr_idx = MAX_GBUFFERS * (PLANB_MAX_FBUF
|
| 2481 |
|
|
/ PAGE_SIZE + 1) + MAX_LNUM * i;
|
| 2482 |
|
|
gbuf->lsize = 0;
|
| 2483 |
|
|
gbuf->lnum = 0;
|
| 2484 |
|
|
#endif
|
| 2485 |
|
|
}
|
| 2486 |
|
|
pb->rawbuf=NULL;
|
| 2487 |
|
|
pb->grabbing=0;
|
| 2488 |
|
|
|
| 2489 |
|
|
/* enable interrupts */
|
| 2490 |
|
|
writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat);
|
| 2491 |
|
|
pb->intr_mask = PLANB_FRM_IRQ;
|
| 2492 |
|
|
enable_irq(pb->irq);
|
| 2493 |
|
|
|
| 2494 |
|
|
/* Now add the templates and register the device units. */
|
| 2495 |
|
|
memcpy(&pb->video_dev,&planb_template,sizeof(planb_template));
|
| 2496 |
|
|
pb->video_dev.priv = pb;
|
| 2497 |
|
|
memcpy(&pb->vbi_dev,&planb_vbi_template,sizeof(planb_vbi_template));
|
| 2498 |
|
|
|
| 2499 |
|
|
if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0)
|
| 2500 |
|
|
return -1;
|
| 2501 |
|
|
if(video_register_device(&pb->vbi_dev, VFL_TYPE_VBI, vbi_nr)<0) {
|
| 2502 |
|
|
video_unregister_device(&pb->video_dev);
|
| 2503 |
|
|
return -1;
|
| 2504 |
|
|
}
|
| 2505 |
|
|
|
| 2506 |
|
|
return 0;
|
| 2507 |
|
|
}
|
| 2508 |
|
|
|
| 2509 |
|
|
/*
|
| 2510 |
|
|
* Scan for a PlanB controller and map the io memory
|
| 2511 |
|
|
*/
|
| 2512 |
|
|
static int find_planb(void)
|
| 2513 |
|
|
{
|
| 2514 |
|
|
struct planb *pb;
|
| 2515 |
|
|
struct pci_dev *pdev = NULL;
|
| 2516 |
|
|
unsigned long base;
|
| 2517 |
|
|
int planb_num = 0;
|
| 2518 |
|
|
|
| 2519 |
|
|
if (_machine != _MACH_Pmac)
|
| 2520 |
|
|
return 0;
|
| 2521 |
|
|
|
| 2522 |
|
|
pdev = pci_find_device(APPLE_VENDOR_ID, PLANB_DEV_ID, pdev);
|
| 2523 |
|
|
if (pdev == NULL) {
|
| 2524 |
|
|
printk(KERN_WARNING "PlanB: no device found!\n");
|
| 2525 |
|
|
return planb_num;
|
| 2526 |
|
|
}
|
| 2527 |
|
|
|
| 2528 |
|
|
pb = &planbs;
|
| 2529 |
|
|
planb_num = 1;
|
| 2530 |
|
|
base = pdev->resource[0].start;
|
| 2531 |
|
|
|
| 2532 |
|
|
DBG("PlanB: Found device %s, membase 0x%lx, irq %d\n",
|
| 2533 |
|
|
pdev->slot_name, base, pdev->irq);
|
| 2534 |
|
|
|
| 2535 |
|
|
/* Enable response in memory space, bus mastering,
|
| 2536 |
|
|
use memory write and invalidate */
|
| 2537 |
|
|
pci_enable_device (pdev);
|
| 2538 |
|
|
pci_set_master (pdev);
|
| 2539 |
|
|
pci_set_mwi(pdev);
|
| 2540 |
|
|
/* value copied from MacOS... */
|
| 2541 |
|
|
pci_write_config_byte (pdev, PCI_LATENCY_TIMER, 0x40);
|
| 2542 |
|
|
|
| 2543 |
|
|
planb_regs = (volatile struct planb_registers *)
|
| 2544 |
|
|
ioremap (base, 0x400);
|
| 2545 |
|
|
pb->planb_base = planb_regs;
|
| 2546 |
|
|
pb->planb_base_bus = (struct planb_registers *)base;
|
| 2547 |
|
|
pb->irq = pdev->irq;
|
| 2548 |
|
|
|
| 2549 |
|
|
return planb_num;
|
| 2550 |
|
|
}
|
| 2551 |
|
|
|
| 2552 |
|
|
static void release_planb(void)
|
| 2553 |
|
|
{
|
| 2554 |
|
|
struct planb *pb;
|
| 2555 |
|
|
|
| 2556 |
|
|
pb=&planbs;
|
| 2557 |
|
|
|
| 2558 |
|
|
/* stop and flush DMAs unconditionally */
|
| 2559 |
|
|
planb_dbdma_stop(&pb->planb_base->ch2);
|
| 2560 |
|
|
planb_dbdma_stop(&pb->planb_base->ch1);
|
| 2561 |
|
|
|
| 2562 |
|
|
/* clear and free interrupts */
|
| 2563 |
|
|
pb->intr_mask = PLANB_CLR_IRQ;
|
| 2564 |
|
|
writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat);
|
| 2565 |
|
|
free_irq(pb->irq, pb);
|
| 2566 |
|
|
|
| 2567 |
|
|
/* make sure all allocated memory are freed */
|
| 2568 |
|
|
planb_prepare_close(pb);
|
| 2569 |
|
|
|
| 2570 |
|
|
printk(KERN_INFO "PlanB: unregistering with v4l\n");
|
| 2571 |
|
|
video_unregister_device(&pb->video_dev);
|
| 2572 |
|
|
video_unregister_device(&pb->vbi_dev);
|
| 2573 |
|
|
|
| 2574 |
|
|
/* note that iounmap() does nothing on the PPC right now */
|
| 2575 |
|
|
iounmap ((void *)pb->planb_base);
|
| 2576 |
|
|
}
|
| 2577 |
|
|
|
| 2578 |
|
|
static int __init init_planbs(void)
|
| 2579 |
|
|
{
|
| 2580 |
|
|
int planb_num;
|
| 2581 |
|
|
|
| 2582 |
|
|
planb_num=find_planb();
|
| 2583 |
|
|
|
| 2584 |
|
|
if (planb_num < 0)
|
| 2585 |
|
|
return -EIO;
|
| 2586 |
|
|
if (planb_num == 0)
|
| 2587 |
|
|
return -ENXIO;
|
| 2588 |
|
|
|
| 2589 |
|
|
if (init_planb(&planbs) < 0) {
|
| 2590 |
|
|
printk(KERN_ERR "PlanB: error registering planb device"
|
| 2591 |
|
|
" with v4l\n");
|
| 2592 |
|
|
release_planb();
|
| 2593 |
|
|
return -EIO;
|
| 2594 |
|
|
}
|
| 2595 |
|
|
return 0;
|
| 2596 |
|
|
}
|
| 2597 |
|
|
|
| 2598 |
|
|
static void __exit exit_planbs(void)
|
| 2599 |
|
|
{
|
| 2600 |
|
|
release_planb();
|
| 2601 |
|
|
}
|
| 2602 |
|
|
|
| 2603 |
|
|
module_init(init_planbs);
|
| 2604 |
|
|
module_exit(exit_planbs);
|
