--- linux-2.4.18/drivers/media/video/planb.c Sun Mar 31 17:21:30 2002 +++ linux-2.4.18-planb/drivers/media/video/planb.c Wed Apr 3 17:58:13 2002 @@ -1,14 +1,17 @@ /* - planb - PlanB frame grabber driver + planb - v4l-compatible frame grabber driver for the PlanB hardware PlanB is used in the 7x00/8x00 series of PowerMacintosh Computers as video input DMA controller. - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) + Copyright (C) 1998 - 2002 Michel Lanners - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) + Based largely on the old bttv driver by Ralph Metzler + + Additional debugging and coding by Takashi Oe + + For more information, see - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -25,7 +28,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ +/* $Id: planb.c,v 2.11 2002/04/03 15:57:57 mlan Exp mlan $ */ #include #include @@ -40,6 +43,7 @@ #include #include #include +#include #include #include #include @@ -52,37 +56,41 @@ #include #include -#include "planb.h" -#include "saa7196.h" +/* Define these to get general / interrupt debugging */ +#undef DEBUG +#undef IDEBUG -/* Would you mind for some ugly debugging? */ -#if 0 -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ +//#define DEBUG + +#ifdef DEBUG +#define DBG(x...) printk(KERN_DEBUG ## x) #else -#define DEBUG(x...) /* Don't debug driver */ +#define DBG(x...) #endif - -#if 0 -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part */ +#ifdef IDEBUG +#define IDBG(x...) printk(KERN_DEBUG ## x) #else -#define IDEBUG(x...) /* Don't debug interrupt part */ +#define IDBG(x...) #endif -/* Ever seen a Mac with more than 1 of these? */ -#define PLANB_MAX 1 +#include "planb.h" +#include "saa7196.h" -static int planb_num; -static struct planb planbs[PLANB_MAX]; +static struct planb planbs; static volatile struct planb_registers *planb_regs; static int def_norm = PLANB_DEF_NORM; /* default norm */ static int video_nr = -1; +static int vbi_nr = -1; MODULE_PARM(def_norm, "i"); MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)"); MODULE_PARM(video_nr,"i"); -MODULE_LICENSE("GPL"); +MODULE_PARM(vbi_nr,"i"); +MODULE_DESCRIPTION("planb - v4l driver module for Apple PlanB video in"); +MODULE_AUTHOR("Michel Lanners & Takashi Oe - see: http://www.cpu.lu/planb.html"); +MODULE_LICENSE("GPL"); /* ------------------ PlanB Exported Functions ------------------ */ static long planb_write(struct video_device *, const char *, unsigned long, int); @@ -92,12 +100,23 @@ static int planb_ioctl(struct video_device *, unsigned int, void *); static int planb_mmap(struct video_device *, const char *, unsigned long); static void planb_irq(int, void *, struct pt_regs *); +static int planb_vbi_open(struct video_device *, int); +static void planb_vbi_close(struct video_device *); +static long planb_vbi_read(struct video_device *, char *, unsigned long, int); +static unsigned int planb_vbi_poll(struct video_device *, struct file *, + poll_table *); +static int planb_vbi_ioctl(struct video_device *, unsigned int, void *); static void release_planb(void); -static int init_planbs(void); +static int __init init_planbs(void); +static void __exit exit_planbs(void); /* ------------------ PlanB Internal Functions ------------------ */ static int planb_prepare_open(struct planb *); +static int planb_prepare_vbi(struct planb *); +static int planb_prepare_video(struct planb *); static void planb_prepare_close(struct planb *); +static void planb_close_vbi(struct planb *); +static void planb_close_video(struct planb *); static void saa_write_reg(unsigned char, unsigned char); static unsigned char saa_status(int, struct planb *); static void saa_set(unsigned char, unsigned char, struct planb *); @@ -107,28 +126,41 @@ static void add_clip(struct planb *, struct video_clip *); static void fill_cmd_buff(struct planb *); static void cmd_buff(struct planb *); -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb *); +static dbdma_cmd_ptr setup_grab_cmd(int, struct planb *); static void overlay_start(struct planb *); static void overlay_stop(struct planb *); -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, unsigned short, - unsigned int); -static inline void tab_cmd_store(volatile struct dbdma_cmd *, unsigned int, - unsigned int); -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned short, - unsigned short, unsigned int, unsigned int); +static inline void tab_cmd_dbdma(dbdma_cmd_ptr, unsigned short, unsigned int); +static inline void tab_cmd_store(dbdma_cmd_ptr, unsigned int, unsigned int); +static inline void tab_cmd_gen(dbdma_cmd_ptr, unsigned short, unsigned short, + unsigned int, unsigned int); static int init_planb(struct planb *); static int find_planb(void); -static void planb_pre_capture(int, int, struct planb *); -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct dbdma_cmd *, - int, int, int, int, int, struct planb *); -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); -static unsigned int saa_geo_setup(int, int, int, int, struct planb *); +static void planb_pre_capture(int, struct planb *); +static dbdma_cmd_ptr cmd_geo_setup(dbdma_cmd_ptr, int, int, int, int, int, + struct planb *); +static inline void planb_dbdma_stop(dbdma_regs_ptr); +static inline void planb_dbdma_restart(dbdma_regs_ptr); +static void saa_geo_setup(int, int, int, int, struct planb *); static inline int overlay_is_active(struct planb *); /*******************************/ /* Memory management functions */ /*******************************/ +/* I know this is not the right way to allocate memory. Whoever knows + * the right way to allocate a huge buffer for DMA that can be mapped + * to user space, please tell me... or better, fix the code and send + * patches. + * + * Michel Lanners (mlan@cpu.lu) + */ +/* FIXME: As subsequent calls to __get_free_pages don't necessarily return + * contiguous pages, we need to do horrible things later on when setting + * up DMA, to make sure a single DMA transfer doesn't cross a page boundary. + * At least, I hope it's done right later on ;-) ...... + * Anyway, there should be a way to get hold of a large buffer of contiguous + * pages for DMA.... + */ static int grabbuf_alloc(struct planb *pb) { int i, npage; @@ -142,14 +174,14 @@ * sizeof(unsigned long), GFP_KERNEL)) == 0) return -ENOMEM; for (i = 0; i < npage; i++) { - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL - |GFP_DMA, 0); + pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL | + GFP_DMA, 0); if (!pb->rawbuf[i]) break; mem_map_reserve(virt_to_page(pb->rawbuf[i])); } if (i-- < npage) { - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not allocated\n"); + DBG("PlanB: init_grab: grab buffer not allocated\n"); for (; i > 0; i--) { mem_map_unreserve(virt_to_page(pb->rawbuf[i])); free_pages((unsigned long)pb->rawbuf[i], 0); @@ -157,7 +189,7 @@ kfree(pb->rawbuf); return -ENOBUFS; } - pb->rawbuf_size = npage; + pb->rawbuf_nchunks = npage; return 0; } @@ -181,12 +213,7 @@ /* Let's wait 30msec for this one */ current->state = TASK_INTERRUPTIBLE; -#if LINUX_VERSION_CODE >= 0x02017F schedule_timeout(30 * HZ / 1000); -#else - current->timeout = jiffies + 30 * HZ / 1000; /* 30 ms */; - schedule(); -#endif return (unsigned char)in_8 (&planb_regs->saa_status); } @@ -208,25 +235,15 @@ saa_write_reg (i, saa_regs[pb->win.norm][i]); } -static unsigned int saa_geo_setup(int width, int height, int interlace, int bpp, - struct planb *pb) +static void saa_geo_setup(int width, int height, int interlace, + int fmt, struct planb *pb) { int ht, norm = pb->win.norm; - switch(bpp) { - case 2: - /* RGB555+a 1x16-bit + 16-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x3; - break; - case 1: - case 4: - /* RGB888 1x24-bit + 8-bit transparent */ - saa_regs[norm][SAA7196_FMTS] &= ~0x1; - saa_regs[norm][SAA7196_FMTS] |= 0x2; - break; - default: - return -EINVAL; - } + /* bits FS0, FS1 according to format spec */ + saa_regs[norm][SAA7196_FMTS] &= ~0x3; + saa_regs[norm][SAA7196_FMTS] |= (palette2fmt[fmt].saa_fmt & 0x3); + ht = (interlace ? height / 2 : height); saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3) @@ -240,93 +257,99 @@ : (saa_regs[norm][SAA7196_FMTS] | 0x60); /* transparent mode; extended format enabled */ saa_regs[norm][SAA7196_DPATH] |= 0x3; - - return 0; + /* bits LLV, MCT according to format spec */ + saa_regs[norm][SAA7196_DPATH] &= ~0x30; + saa_regs[norm][SAA7196_DPATH] |= (palette2fmt[fmt].saa_fmt & 0x30); } /***************************/ /* DBDMA support functions */ /***************************/ -static inline void planb_dbdma_restart(volatile struct dbdma_regs *ch) +static inline void planb_dbdma_restart(dbdma_regs_ptr ch) { - out_le32(&ch->control, PLANB_CLR(RUN)); - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); + writel(PLANB_CLR(RUN), &ch->control); + writel(PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE), &ch->control); } -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) +static inline void planb_dbdma_stop(dbdma_regs_ptr ch) { int i = 0; - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { - IDEBUG("PlanB: waiting for DMA to stop\n"); + writel(PLANB_CLR(RUN) | PLANB_SET(FLUSH), &ch->control); + while((readl(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { + IDBG("PlanB: waiting for DMA to stop\n"); i++; } } -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned int cmd_dep) +static inline void tab_cmd_dbdma(dbdma_cmd_ptr ch, unsigned short command, + unsigned int cmd_dep) { st_le16(&ch->command, command); + st_le16(&ch->req_count, 0); + st_le32(&ch->phy_addr, 0); st_le32(&ch->cmd_dep, cmd_dep); + /* really clears res_count & xfer_status */ + st_le32((unsigned int *)&ch->res_count, 0); } -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, - unsigned int phy_addr, unsigned int cmd_dep) +static inline void tab_cmd_store(dbdma_cmd_ptr ch, unsigned int phy_addr, + unsigned int cmd_dep) { st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); st_le16(&ch->req_count, 4); st_le32(&ch->phy_addr, phy_addr); st_le32(&ch->cmd_dep, cmd_dep); + st_le32((unsigned int *)&ch->res_count, 0); } -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, - unsigned short command, unsigned short req_count, - unsigned int phy_addr, unsigned int cmd_dep) +static inline void tab_cmd_gen(dbdma_cmd_ptr ch, unsigned short command, + unsigned short req_count, unsigned int phy_addr, unsigned int cmd_dep) { st_le16(&ch->command, command); st_le16(&ch->req_count, req_count); st_le32(&ch->phy_addr, phy_addr); st_le32(&ch->cmd_dep, cmd_dep); + st_le32((unsigned int *)&ch->res_count, 0); } -static volatile struct dbdma_cmd *cmd_geo_setup( - volatile struct dbdma_cmd *c1, int width, int height, int interlace, - int bpp, int clip, struct planb *pb) +static dbdma_cmd_ptr cmd_geo_setup(dbdma_cmd_ptr c1, int width, int height, + int interlace, int fmt, int clip, struct planb *pb) { int norm = pb->win.norm; - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) - return (volatile struct dbdma_cmd *)NULL; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_FMTS); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_FMTS]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_DPATH); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_DPATH]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), - bpp | ((clip)? PLANB_CLIPMASK: 0)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_OUTPIX); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_OUTPIX]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_HFILT); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_HFILT]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), + saa_geo_setup(width, height, interlace, fmt, pb); + /* if the number of DBDMA commands here (14) changes, lots of + * things need to be corrected accordingly... */ + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), + SAA7196_FMTS); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), + saa_regs[norm][SAA7196_FMTS]); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), + SAA7196_DPATH); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), + saa_regs[norm][SAA7196_DPATH]); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->even), + palette2fmt[fmt].pb_fmt | ((clip)? PLANB_CLIPMASK: 0)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->odd), + palette2fmt[fmt].pb_fmt | ((clip)? PLANB_CLIPMASK: 0)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), + SAA7196_OUTPIX); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), + saa_regs[norm][SAA7196_OUTPIX]); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), + SAA7196_HFILT); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), + saa_regs[norm][SAA7196_HFILT]); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), SAA7196_OUTLINE); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), saa_regs[norm][SAA7196_OUTLINE]); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), - SAA7196_VYP); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), - saa_regs[norm][SAA7196_VYP]); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_addr), + SAA7196_VYP); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->saa_regval), + saa_regs[norm][SAA7196_VYP]); return c1; } @@ -336,11 +359,13 @@ static inline void planb_lock(struct planb *pb) { + DBG("PlanB: planb_lock\n"); down(&pb->lock); } static inline void planb_unlock(struct planb *pb) { + DBG("PlanB: planb_unlock\n"); up(&pb->lock); } @@ -348,47 +373,116 @@ /* Driver Core */ /***************/ +/* number of entries in the circular DBDMA command buffer + * initial stop, odd/even vbi, odd/even video, branch back */ +#define NUMJUMPS 6 static int planb_prepare_open(struct planb *pb) { + dbdma_cmd_ptr c; + int size, i; + + size = (NUMJUMPS + 1) * sizeof(struct dbdma_cmd); + + if((pb->jump_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0) + return -ENOMEM; + memset(pb->jump_raw, 0, size); + c = pb->jumpbuf = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->jump_raw); + + /* circular DBDMA command buffer, to hold jumps to transfer commands */ + tab_cmd_dbdma(c++, DBDMA_STOP, 0); + for (i=1; ijumpbuf); + + DBG("PlanB: planb_prepare_open, jumpbuffer at 0x%08x, length %d.\n", + (unsigned int)pb->jumpbuf, size); + return 0; +} + +#define VBIDUMMY 40 /* must be even !! */ +static int planb_prepare_vbi(struct planb *pb) +{ + int size; + + /* allocate VBI comand buffer memory + (2 fields * VBI_MAXLINES + 40 handling + alignment) */ + size = (2*VBI_MAXLINES + VBIDUMMY + 1) * sizeof(struct dbdma_cmd); + + if ((pb->vbi_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0) + return -ENOMEM; + memset (pb->vbi_raw, 0, size); + size = (VBI_MAXLINES + VBIDUMMY/2) * sizeof(struct dbdma_cmd); + pb->vbi_cbo.start = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->vbi_raw); + pb->vbi_cbo.size = pb->vbi_cbe.size = size; + pb->vbi_cbe.start = pb->vbi_cbo.start + pb->vbi_cbo.size; + pb->vbi_cbo.jumpaddr = pb->jumpbuf + 1; + pb->vbi_cbe.jumpaddr = pb->jumpbuf + 3; + + DBG("PlanB: planb_prepare_vbi, dbdma cmd_buf at 0x%08x, length %d.\n", + (unsigned int)pb->vbi_cbo.start, 2*size); + return 0; +} + +static int planb_prepare_video(struct planb *pb) +{ int i, size; + /* FIXME: This is stressing kmalloc to its limits... + We really should allocate smaller chunks. */ + /* allocate memory for two plus alpha command buffers (size: max lines, plus 40 commands handling, plus 1 alignment), plus dummy command buf, plus clipmask buffer, plus frame grabbing status */ - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 - +MAX_GBUFFERS*sizeof(unsigned int); - if ((pb->priv_space = kmalloc (size, GFP_KERNEL)) == 0) + size = (pb->tab_size * (2 + MAX_GBUFFERS * TAB_FACTOR) + + MAX_GBUFFERS * PLANB_DUMMY + 1) * sizeof(struct dbdma_cmd) + + (PLANB_MAXLINES * ((PLANB_MAXPIXELS + 7) & ~7)) / 8 + + MAX_GBUFFERS * sizeof(unsigned int); + if ((pb->vid_raw = kmalloc (size, GFP_KERNEL|GFP_DMA)) == 0) return -ENOMEM; - memset ((void *) pb->priv_space, 0, size); - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) - DBDMA_ALIGN (pb->priv_space); - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; + memset (pb->vid_raw, 0, size); + pb->vid_cbo.start = (dbdma_cmd_ptr) DBDMA_ALIGN (pb->vid_raw); + pb->vid_cbo.size = pb->vid_cbe.size = pb->tab_size/2; + pb->vid_cbe.start = pb->vid_cbo.start + pb->vid_cbo.size; + pb->vid_cbo.jumpaddr = pb->jumpbuf + 2; + pb->vid_cbe.jumpaddr = pb->jumpbuf + 4; + pb->overlay_last1 = pb->vid_cbo.start; + pb->vid_cbo.bus = virt_to_bus(pb->vid_cbo.start); + pb->vid_cbe.bus = virt_to_bus(pb->vid_cbe.start); + pb->clip_cbo.start = pb->vid_cbe.start + pb->vid_cbe.size; + pb->clip_cbo.size = pb->clip_cbe.size = pb->tab_size/2; + pb->clip_cbe.start = pb->clip_cbo.start + pb->clip_cbo.size; + pb->overlay_last2 = pb->clip_cbo.start; + pb->clip_cbo.bus = virt_to_bus(pb->clip_cbo.start); + pb->clip_cbe.bus = virt_to_bus(pb->clip_cbe.start); + pb->gbuf[0].cap_cmd = pb->clip_cbe.start + pb->clip_cbe.size; + pb->gbuf[0].pre_cmd = pb->gbuf[0].cap_cmd + pb->tab_size * TAB_FACTOR; for (i = 1; i < MAX_GBUFFERS; i++) { - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; - } - pb->frame_stat=(volatile unsigned int *)(pb->pre_cmd[MAX_GBUFFERS-1] - + PLANB_DUMMY); - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); + pb->gbuf[i].cap_cmd = pb->gbuf[i-1].pre_cmd + PLANB_DUMMY; + pb->gbuf[i].pre_cmd = pb->gbuf[i].cap_cmd + + pb->tab_size * TAB_FACTOR; + } + pb->gbuf[0].status = (volatile unsigned int *) + (pb->gbuf[MAX_GBUFFERS-1].pre_cmd + PLANB_DUMMY); + for (i = 1; i < MAX_GBUFFERS; i++) + pb->gbuf[i].status = pb->gbuf[i-1].status; + pb->mask = (unsigned char *)(pb->gbuf[MAX_GBUFFERS-1].status + 1); pb->rawbuf = NULL; - pb->rawbuf_size = 0; + pb->rawbuf_nchunks = 0; pb->grabbing = 0; for (i = 0; i < MAX_GBUFFERS; i++) { - pb->frame_stat[i] = GBUFFER_UNUSED; - pb->gwidth[i] = 0; - pb->gheight[i] = 0; - pb->gfmt[i] = 0; - pb->gnorm_switch[i] = 0; + gbuf_ptr gbuf = &pb->gbuf[i]; + + *gbuf->status = GBUFFER_UNUSED; + gbuf->width = 0; + gbuf->height = 0; + gbuf->fmt = 0; + gbuf->norm_switch = 0; #ifndef PLANB_GSCANLINE - pb->lsize[i] = 0; - pb->lnum[i] = 0; -#endif /* PLANB_GSCANLINE */ + gbuf->lsize = 0; + gbuf->lnum = 0; +#endif } pb->gcount = 0; pb->suspend = 0; @@ -399,30 +493,74 @@ planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); + DBG("PlanB: planb_prepare_video, dbdma cmd_buf at 0x%08x, " + "length %d.\n", (unsigned int)pb->vid_cbo.start, 2*size); return 0; } static void planb_prepare_close(struct planb *pb) { - int i; - /* make sure the dma's are idle */ planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); - /* free kernel memory of command buffers */ - if(pb->priv_space != 0) { - kfree (pb->priv_space); - pb->priv_space = 0; + + if(pb->jump_raw != 0) { + kfree(pb->jump_raw); + pb->jump_raw = 0; + } + return; +} + +static void planb_close_vbi(struct planb *pb) +{ + /* FIXME: stop running DMA */ + + /* Make sure the DMA controller doesn't jump here anymore */ + tab_cmd_dbdma(pb->vbi_cbo.jumpaddr, DBDMA_NOP, 0); + tab_cmd_dbdma(pb->vbi_cbe.jumpaddr, DBDMA_NOP, 0); + + if(pb->vbi_raw != 0) { + kfree (pb->vbi_raw); + pb->vbi_raw = 0; + } + + /* FIXME: deallocate VBI data buffer */ + + /* FIXME: restart running DMA if app. */ + return; +} + +static void planb_close_video(struct planb *pb) +{ + int i; + + /* FIXME: stop running DMA */ + + /* Make sure the DMA controller doesn't jump here anymore */ + tab_cmd_dbdma(pb->vid_cbo.jumpaddr, DBDMA_NOP, 0); + tab_cmd_dbdma(pb->vid_cbe.jumpaddr, DBDMA_NOP, 0); +/* No clipmask jumpbuffer yet */ +#if 0 + tab_cmd_dbdma(pb->clip_cbo.jumpaddr, DBDMA_NOP, 0); + tab_cmd_dbdma(pb->clip_cbe.jumpaddr, DBDMA_NOP, 0); +#endif + + if(pb->vid_raw != 0) { + kfree (pb->vid_raw); + pb->vid_raw = 0; pb->cmd_buff_inited = 0; } if(pb->rawbuf) { - for (i = 0; i < pb->rawbuf_size; i++) { + for (i = 0; i < pb->rawbuf_nchunks; i++) { mem_map_unreserve(virt_to_page(pb->rawbuf[i])); free_pages((unsigned long)pb->rawbuf[i], 0); } kfree(pb->rawbuf); } pb->rawbuf = NULL; + + /* FIXME: restart running DMA if app. */ + return; } /*****************************/ @@ -431,43 +569,37 @@ static void overlay_start(struct planb *pb) { + DBG("PlanB: overlay_start()\n"); - DEBUG("PlanB: overlay_start()\n"); + if(ACTIVE & readl(&pb->planb_base->ch1.status)) { - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { - - DEBUG("PlanB: presumably, grabbing is in progress...\n"); + DBG("PlanB: presumably, grabbing is in progress...\n"); planb_dbdma_stop(&pb->planb_base->ch2); - out_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); + writel(pb->clip_cbo.bus, &pb->planb_base->ch2.cmdptr); planb_dbdma_restart(&pb->planb_base->ch2); - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); + st_le16 (&pb->vid_cbo.start->command, DBDMA_NOP); + tab_cmd_dbdma(pb->gbuf[pb->last_fr].last_cmd, + DBDMA_NOP | BR_ALWAYS, pb->vid_cbo.bus); eieio(); pb->prev_last_fr = pb->last_fr; pb->last_fr = -2; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { - IDEBUG("PlanB: became inactive " + if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) { + IDBG("PlanB: became inactive " "in the mean time... reactivating\n"); planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); + writel(pb->vid_cbo.bus, &pb->planb_base->ch1.cmdptr); planb_dbdma_restart(&pb->planb_base->ch1); } } else { - DEBUG("PlanB: currently idle, so can do whatever\n"); + DBG("PlanB: currently idle, so can do whatever\n"); planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); - st_le32 (&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->ch2_cmd)); - st_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->ch1_cmd)); - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); + st_le32(&pb->planb_base->ch2.cmdptr, pb->clip_cbo.bus); + st_le32(&pb->planb_base->ch1.cmdptr, pb->vid_cbo.bus); + writew(DBDMA_NOP, &pb->vid_cbo.start->command); planb_dbdma_restart(&pb->planb_base->ch2); planb_dbdma_restart(&pb->planb_base->ch1); pb->last_fr = -1; @@ -477,29 +609,29 @@ static void overlay_stop(struct planb *pb) { - DEBUG("PlanB: overlay_stop()\n"); + DBG("PlanB: overlay_stop()\n"); if(pb->last_fr == -1) { - DEBUG("PlanB: no grabbing, it seems...\n"); + DBG("PlanB: no grabbing, it seems...\n"); planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); pb->last_fr = -999; } else if(pb->last_fr == -2) { unsigned int cmd_dep; - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); + tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].cap_cmd, DBDMA_STOP, 0); eieio(); - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); + cmd_dep = (unsigned int)readl(&pb->overlay_last1->cmd_dep); if(overlay_is_active(pb)) { - DEBUG("PlanB: overlay is currently active\n"); + DBG("PlanB: overlay is currently active\n"); planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); - if(cmd_dep != pb->ch1_cmd_phys) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); + if(cmd_dep != pb->vid_cbo.bus) { + writel(virt_to_bus(pb->overlay_last1), + &pb->planb_base->ch1.cmdptr); planb_dbdma_restart(&pb->planb_base->ch1); } } @@ -514,15 +646,15 @@ int fr = -1; struct dbdma_cmd last; - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); + DBG("PlanB: suspend_overlay: %d\n", pb->suspend); if(pb->suspend++) return; - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { + if(ACTIVE & readl(&pb->planb_base->ch1.status)) { if(pb->last_fr == -2) { fr = pb->prev_last_fr; - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); + memcpy(&last, (void*)pb->gbuf[fr].last_cmd, sizeof(last)); + tab_cmd_dbdma(pb->gbuf[fr].last_cmd, DBDMA_STOP, 0); } if(overlay_is_active(pb)) { planb_dbdma_stop(&pb->planb_base->ch2); @@ -542,38 +674,38 @@ static void resume_overlay(struct planb *pb) { - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); + DBG("PlanB: resume_overlay: %d\n", pb->suspend); if(pb->suspend > 1) return; if(pb->suspended.frame != -1) { - memcpy((void*)pb->last_cmd[pb->suspended.frame], - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); + memcpy((void*)pb->gbuf[pb->suspended.frame].last_cmd, + &pb->suspended.cmd, sizeof(pb->suspended.cmd)); } - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { + if(ACTIVE & readl(&pb->planb_base->ch1.status)) { goto finish; } if(pb->suspended.overlay) { - DEBUG("PlanB: overlay being resumed\n"); + DBG("PlanB: overlay being resumed\n"); - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); + st_le16 (&pb->vid_cbo.start->command, DBDMA_NOP); + st_le16 (&pb->clip_cbo.start->command, DBDMA_NOP); /* Set command buffer addresses */ - st_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->overlay_last1)); - out_le32(&pb->planb_base->ch2.cmdptr, - virt_to_bus(pb->overlay_last2)); + writel(virt_to_bus(pb->overlay_last1), + &pb->planb_base->ch1.cmdptr); + writel(virt_to_bus(pb->overlay_last2), + &pb->planb_base->ch2.cmdptr); /* Start the DMA controller */ - out_le32 (&pb->planb_base->ch2.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); + writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE), + &pb->planb_base->ch2.control); + writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE), + &pb->planb_base->ch1.control); } else if(pb->suspended.frame != -1) { - out_le32(&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->last_cmd[pb->suspended.frame])); - out_le32 (&pb->planb_base->ch1.control, - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); + writel(virt_to_bus(pb->gbuf[pb->suspended.frame].last_cmd), + &pb->planb_base->ch1.cmdptr); + writel(PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE), + &pb->planb_base->ch1.control); } finish: @@ -589,7 +721,7 @@ int ww = pb->win.width, hw = pb->win.height; int x, y, xtmp1, xtmp2; - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); + DBG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); if(xc < 0) { wc += xc; @@ -626,47 +758,48 @@ static void fill_cmd_buff(struct planb *pb) { - int restore = 0; - volatile struct dbdma_cmd last; + int restore = 0; + dbdma_cmd_t last; - DEBUG("PlanB: fill_cmd_buff()\n"); + DBG("PlanB: fill_cmd_buff()\n"); - if(pb->overlay_last1 != pb->ch1_cmd) { + if(pb->overlay_last1 != pb->vid_cbo.start) { restore = 1; last = *(pb->overlay_last1); } - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size + memset ((void *) pb->vid_cbo.start, 0, 2 * pb->tab_size * sizeof(struct dbdma_cmd)); cmd_buff (pb); if(restore) *(pb->overlay_last1) = last; if(pb->suspended.overlay) { - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); - if(jump_addr != pb->ch1_cmd_phys) { + unsigned long jump_addr = readl(&pb->overlay_last1->cmd_dep); + if(jump_addr != pb->vid_cbo.bus) { int i; - DEBUG("PlanB: adjusting ch1's jump address\n"); + DBG("PlanB: adjusting ch1's jump address\n"); for(i = 0; i < MAX_GBUFFERS; i++) { - if(pb->need_pre_capture[i]) { - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) + if(pb->gbuf[i].need_pre_capture) { + if(jump_addr == virt_to_bus(pb->gbuf[i].pre_cmd)) goto found; } else { - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) + if(jump_addr == + virt_to_bus(pb->gbuf[i].cap_cmd)) goto found; } } - DEBUG("PlanB: not found...\n"); + DBG(" not found!\n"); goto out; found: - if(pb->need_pre_capture[i]) - out_le32(&pb->pre_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); + if(pb->gbuf[i].need_pre_capture) + writel(virt_to_bus(pb->overlay_last1), + &pb->gbuf[i].pre_cmd->phy_addr); else - out_le32(&pb->cap_cmd[i]->phy_addr, - virt_to_bus(pb->overlay_last1)); + writel(virt_to_bus(pb->overlay_last1), + &pb->gbuf[i].cap_cmd->phy_addr); } } out: @@ -679,8 +812,8 @@ { int i, bpp, count, nlines, stepsize, interlace; unsigned long base, jump, addr_com, addr_dep; - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; + dbdma_cmd_ptr c1 = pb->vid_cbo.start; + dbdma_cmd_ptr c2 = pb->clip_cbo.start; interlace = pb->win.interlace; bpp = pb->win.bpp; @@ -696,33 +829,28 @@ addr_dep = virt_to_bus(&c1->cmd_dep); tab_cmd_dbdma(c1++, DBDMA_NOP, 0); jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */ - if((c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, - bpp, 1, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); - return; - } + c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, + pb->win.color_fmt, 1, pb); tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16); tab_cmd_store(c1++, addr_dep, jump); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel), PLANB_SET(FIELD_SYNC)); /* (1) wait for field sync to be set */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(ODD_FIELD)); /* wait for field sync to be cleared */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); /* if not odd field, wait until field sync is set again */ tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch2.control), PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(DMA_ABORT)); - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * (pb->win.bpl - + pb->win.pad) + pb->win.x * bpp); + base = (pb->fb.phys + pb->fb.offset + pb->win.y * (pb->win.bpl + + pb->win.pad) + pb->win.x * bpp); if (interlace) { stepsize = 2; @@ -744,16 +872,16 @@ /* Resync to odd field */ /* (2) wait for field sync to be set */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(ODD_FIELD)); /* wait for field sync to be cleared */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); /* if not odd field, wait until field sync is set again */ tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; /* assert ch_sync to ch2 */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch2.control), PLANB_SET(CH_SYNC)); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(DMA_ABORT)); /* odd field data: */ @@ -765,22 +893,22 @@ /* And jump back to the start */ cmd_tab_data_end: pb->overlay_last1 = c1; /* keep a pointer to the last command */ - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); + tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, pb->vid_cbo.bus); /* Clipmask command buffer */ /* Preamble commands: */ tab_cmd_dbdma(c2++, DBDMA_NOP, 0); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.wait_sel), PLANB_SET(CH_SYNC)); /* wait until ch1 asserts ch_sync */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); /* clear ch_sync asserted by ch1 */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.control), PLANB_CLR(CH_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.wait_sel), PLANB_SET(FIELD_SYNC)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel), PLANB_SET(ODD_FIELD)); /* jump to end of even field if appropriate */ @@ -791,7 +919,7 @@ tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); /* even field mask: */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel), PLANB_SET(DMA_ABORT)); /* this points to pos. B */ jump = (interlace) ? virt_to_bus(c2 + nlines + 1): @@ -806,7 +934,7 @@ goto cmd_tab_mask_end; /* odd field mask: */ -/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), +/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch2.br_sel), PLANB_SET(DMA_ABORT)); /* this points to pos. B */ jump = virt_to_bus(c2 + nlines / 2); @@ -824,13 +952,13 @@ /* corresponds to fsync (1) of ch1 */ /* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); /* restart ch1, meant to clear any dead bit or something */ - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch1.control), PLANB_CLR(RUN)); - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), + tab_cmd_store(c2++, (unsigned)(&pb->planb_base_bus->ch1.control), PLANB_SET(RUN)); pb->overlay_last2 = c2; /* keep a pointer to the last command */ /* start over even field clipmasking */ - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); + tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, pb->clip_cbo.bus); eieio(); return; @@ -840,40 +968,22 @@ /* grabdisplay support functions */ /*********************************/ -static int palette2fmt[] = { - 0, - PLANB_GRAY, - 0, - 0, - 0, - PLANB_COLOUR32, - PLANB_COLOUR15, - 0, - 0, - 0, - 0, - 0, - 0, - 0, - 0, -}; - -#define PLANB_PALETTE_MAX 15 - static inline int overlay_is_active(struct planb *pb) { unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); - unsigned int caddr = (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); + unsigned int caddr = (unsigned)readl(&pb->planb_base->ch1.cmdptr); - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) - && (caddr < (pb->ch1_cmd_phys + size)) - && (caddr >= (unsigned)pb->ch1_cmd_phys); + return (readl(&pb->overlay_last1->cmd_dep) == pb->vid_cbo.bus) + && (caddr < (pb->vid_cbo.bus + size)) + && (caddr >= (unsigned)pb->vid_cbo.bus); } static int vgrab(struct planb *pb, struct video_mmap *mp) { - unsigned int fr = mp->frame; - unsigned int format; + unsigned int fr = mp->frame; + unsigned int fmt = mp->format; + unsigned int bpp = palette2fmt[fmt].bpp; + gbuf_ptr gbuf = &pb->gbuf[fr]; if(pb->rawbuf==NULL) { int err; @@ -881,211 +991,225 @@ return err; } - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, - mp->width, mp->height, fr); + DBG("PlanB: grab %d: %dx%d fmt %d (%u)\n", pb->grabbing, mp->width, + mp->height, fmt, fr); - if(pb->grabbing >= MAX_GBUFFERS) + if(pb->grabbing >= MAX_GBUFFERS) { + DBG(" no buffer\n"); return -ENOBUFS; - if(fr > (MAX_GBUFFERS - 1) || fr < 0) + } + if(fr > (MAX_GBUFFERS - 1) || fr < 0) { + DBG(" invalid buffer\n"); return -EINVAL; - if(mp->height <= 0 || mp->width <= 0) + } + if(mp->height <= 0 || mp->width <= 0) { + DBG(" negative height or width\n"); return -EINVAL; - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) + } + if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) { + DBG(" format out of range\n"); return -EINVAL; - if((format = palette2fmt[mp->format]) == 0) + } + if(bpp == 0) { + DBG(" unsupported format %d\n", mp->format); return -EINVAL; - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = bpp */ + } + if (mp->height * mp->width * bpp > PLANB_MAX_FBUF) { + DBG(" grab bigger than buffer\n"); return -EINVAL; + } planb_lock(pb); - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { + if(mp->width != gbuf->width || mp->height != gbuf->height || + fmt != gbuf->fmt || (gbuf->norm_switch)) { int i; #ifndef PLANB_GSCANLINE - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] - * pb->gfmt[fr]; - unsigned int nsize = mp->width * mp->height * format; + unsigned int osize = gbuf->width * gbuf->height * + palette2fmt[gbuf->fmt].bpp; + unsigned int nsize = mp->width * mp->height * bpp; #endif - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", - mp->width, mp->height, mp->format); + DBG("PlanB: changed gwidth = %d, gheight = %d, format = %u, " + "osize = %d, nsize = %d\n", mp->width, mp->height, fmt, + osize, nsize); +/* Do we _really_ need to clear the grab buffers?? */ +#if 0 #ifndef PLANB_GSCANLINE - if(pb->gnorm_switch[fr]) + if(gbuf->norm_switch) nsize = 0; if (nsize < osize) { - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { + for(i = gbuf->idx; osize > 0; i++) { memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); osize -= PAGE_SIZE; } } - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] - + pb->lnum[fr]; i++) + for(i = gbuf->l_fr_addr_idx; i < + gbuf->l_fr_addr_idx + gbuf->lnum; i++) memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); #else /* XXX TODO */ /* - if(pb->gnorm_switch[fr]) + if(gbuf->norm_switch) memset((void *)pb->gbuffer[fr], 0, - pb->gbytes_per_line * pb->gheight[fr]); + pb->gbytes_per_line * gbuf->height); else { if(mp-> - for(i = 0; i < pb->gheight[fr]; i++) { + for(i = 0; i < gbuf->height; i++) { memset((void *)(pb->gbuffer[fr] + pb->gbytes_per_line * i } } */ #endif - pb->gwidth[fr] = mp->width; - pb->gheight[fr] = mp->height; - pb->gfmt[fr] = format; - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ - pb->need_pre_capture[fr] = 1; - pb->gnorm_switch[fr] = 0; +#endif /* if 0 */ + gbuf->width = mp->width; + gbuf->height = mp->height; + gbuf->fmt = fmt; + gbuf->last_cmd = setup_grab_cmd(fr, pb); + planb_pre_capture(fr, pb); + gbuf->need_pre_capture = 1; + gbuf->norm_switch = 0; } else - pb->need_pre_capture[fr] = 0; - pb->frame_stat[fr] = GBUFFER_GRABBING; - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { + gbuf->need_pre_capture = 0; - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); + *gbuf->status = GBUFFER_GRABBING; + if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) { + + IDBG("PlanB: ch1 inactive, initiating grabbing\n"); planb_dbdma_stop(&pb->planb_base->ch1); - if(pb->need_pre_capture[fr]) { + if(gbuf->need_pre_capture) { - IDEBUG("PlanB: padding pre-capture sequence\n"); + DBG("PlanB: padding pre-capture sequence\n"); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->pre_cmd[fr])); + writel(virt_to_bus(gbuf->pre_cmd), + &pb->planb_base->ch1.cmdptr); } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); + tab_cmd_dbdma(gbuf->last_cmd, DBDMA_STOP, 0); + tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0); /* let's be on the safe side. here is not timing critical. */ - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP, 0); + writel(virt_to_bus(gbuf->cap_cmd), + &pb->planb_base->ch1.cmdptr); } planb_dbdma_restart(&pb->planb_base->ch1); pb->last_fr = fr; } else { int i; - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); + DBG("PlanB: ch1 active, grabbing being queued\n"); if((pb->last_fr == -1) || ((pb->last_fr == -2) && overlay_is_active(pb))) { - IDEBUG("PlanB: overlay is active, grabbing defered\n"); + DBG("PlanB: overlay is active, grabbing defered\n"); - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); - if(pb->need_pre_capture[fr]) { + tab_cmd_dbdma(gbuf->last_cmd, DBDMA_NOP | BR_ALWAYS, + pb->vid_cbo.bus); + if(gbuf->need_pre_capture) { - IDEBUG("PlanB: padding pre-capture sequence\n"); + DBG("PlanB: padding pre-capture sequence\n"); - tab_cmd_store(pb->pre_cmd[fr], + tab_cmd_store(gbuf->pre_cmd, virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); + pb->vid_cbo.bus); eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->pre_cmd[fr])); + writel(virt_to_bus(gbuf->pre_cmd), + &pb->overlay_last1->cmd_dep); } else { - tab_cmd_store(pb->cap_cmd[fr], + tab_cmd_store(gbuf->cap_cmd, virt_to_bus(&pb->overlay_last1->cmd_dep), - virt_to_bus(pb->ch1_cmd)); - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), + pb->vid_cbo.bus); + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP, 0); eieio(); - out_le32 (&pb->overlay_last1->cmd_dep, - virt_to_bus(pb->cap_cmd[fr])); + writel(virt_to_bus(gbuf->cap_cmd), + &pb->overlay_last1->cmd_dep); } for(i = 0; overlay_is_active(pb) && i < 999; i++) - IDEBUG("PlanB: waiting for overlay done\n"); - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); + DBG("PlanB: waiting for overlay done\n"); + tab_cmd_dbdma(pb->vid_cbo.start, DBDMA_NOP, 0); pb->prev_last_fr = fr; pb->last_fr = -2; } else if(pb->last_fr == -2) { - IDEBUG("PlanB: mixed mode detected, grabbing" + DBG("PlanB: mixed mode detected, grabbing" " will be done before activating overlay\n"); - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); - if(pb->need_pre_capture[fr]) { + tab_cmd_dbdma(pb->vid_cbo.start, DBDMA_NOP, 0); + if(gbuf->need_pre_capture) { - IDEBUG("PlanB: padding pre-capture sequence\n"); + DBG("PlanB: padding pre-capture sequence\n"); - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], + tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].last_cmd, DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); + virt_to_bus(gbuf->pre_cmd)); eieio(); } else { - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->prev_last_fr] != - pb->gwidth[fr] - || pb->gheight[pb->prev_last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->prev_last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), + tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0); + if(pb->gbuf[pb->prev_last_fr].width != + gbuf->width + || pb->gbuf[pb->prev_last_fr].height != + gbuf->height + || pb->gbuf[pb->prev_last_fr].fmt != + gbuf->fmt) + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP, 0); else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], + virt_to_bus(gbuf->cap_cmd + 16)); + tab_cmd_dbdma(pb->gbuf[pb->prev_last_fr].last_cmd, DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); + virt_to_bus(gbuf->cap_cmd)); eieio(); } - tab_cmd_dbdma(pb->last_cmd[fr], - DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->ch1_cmd)); + tab_cmd_dbdma(gbuf->last_cmd, DBDMA_NOP | BR_ALWAYS, + pb->vid_cbo.bus); eieio(); pb->prev_last_fr = fr; pb->last_fr = -2; } else { + gbuf_ptr lastgbuf = &pb->gbuf[pb->last_fr]; - IDEBUG("PlanB: active grabbing session detected\n"); + DBG("PlanB: active grabbing session detected\n"); - if(pb->need_pre_capture[fr]) { + if(gbuf->need_pre_capture) { - IDEBUG("PlanB: padding pre-capture sequence\n"); + DBG("PlanB: padding pre-capture sequence\n"); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], + tab_cmd_dbdma(lastgbuf->last_cmd, DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->pre_cmd[fr])); + virt_to_bus(gbuf->pre_cmd)); eieio(); } else { - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] - || pb->gheight[pb->last_fr] != - pb->gheight[fr] - || pb->gfmt[pb->last_fr] != - pb->gfmt[fr]) - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), + tab_cmd_dbdma(gbuf->last_cmd, DBDMA_STOP, 0); + tab_cmd_dbdma(gbuf->cap_cmd, DBDMA_NOP, 0); + if(lastgbuf->width != gbuf->width + || lastgbuf->height != gbuf->height + || lastgbuf->fmt != gbuf->fmt) + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP, 0); else - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), + tab_cmd_dbdma((gbuf->cap_cmd + 1), DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr] + 16)); - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], + virt_to_bus(gbuf->cap_cmd + 16)); + tab_cmd_dbdma(lastgbuf->last_cmd, DBDMA_NOP | BR_ALWAYS, - virt_to_bus(pb->cap_cmd[fr])); + virt_to_bus(gbuf->cap_cmd)); eieio(); } pb->last_fr = fr; } - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { + if(!(ACTIVE & readl(&pb->planb_base->ch1.status))) { - IDEBUG("PlanB: became inactive in the mean time..." + DBG("PlanB: became inactive in the mean time... " "reactivating\n"); planb_dbdma_stop(&pb->planb_base->ch1); - out_le32 (&pb->planb_base->ch1.cmdptr, - virt_to_bus(pb->cap_cmd[fr])); + writel(virt_to_bus(gbuf->cap_cmd), + &pb->planb_base->ch1.cmdptr); planb_dbdma_restart(&pb->planb_base->ch1); } } @@ -1095,49 +1219,58 @@ return 0; } -static void planb_pre_capture(int fr, int bpp, struct planb *pb) +static void planb_pre_capture(int fr, struct planb *pb) { - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; + gbuf_ptr gbuf = &pb->gbuf[fr]; + dbdma_cmd_ptr c1 = gbuf->pre_cmd; + int height = gbuf->height; + int interlace = (height > pb->maxlines/2)? 1: 0; tab_cmd_dbdma(c1++, DBDMA_NOP, 0); - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered some problems\n"); - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); - return; - } + c1 = cmd_geo_setup(c1, gbuf->width, height, interlace, gbuf->fmt, + 0, pb); /* Sync to even field */ - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel), + PLANB_SET(FIELD_SYNC)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(ODD_FIELD)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(DMA_ABORT)); /* For non-interlaced, we use even fields only */ - if (pb->gheight[fr] <= pb->maxlines/2) + if (interlace == 0) goto cmd_tab_data_end; /* Sync to odd field */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(ODD_FIELD)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(DMA_ABORT)); cmd_tab_data_end: - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->cap_cmd[fr])); + tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(gbuf->cap_cmd)); eieio(); } -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct planb *pb) +/* This needs some explanation. + * What we do here is write the DBDMA commands to fill the grab buffer. + * Since the grab buffer is made up of physically non-contiguous chunks, + * we need to make sure to not make the DMA engine write across a chunk + * boundary: the DMA engine needs a physically contiguous memory chunk for + * a single scan line. + * So all those scan lines that cross a chunk boundary are written do spare + * scratch buffers, and we keep track of this fact. + * Later, in the interrupt routine, we copy those scan lines (in two pieces) + * back to where they belong in the right sequence in the grab buffer. + */ +static dbdma_cmd_ptr setup_grab_cmd(int fr, struct planb *pb) { - int i, bpp, count, nlines, stepsize, interlace; + int i, count, nlines, stepsize, interlace; #ifdef PLANB_GSCANLINE int scanline; #else @@ -1146,19 +1279,20 @@ #endif unsigned long jump; int pagei; - volatile struct dbdma_cmd *c1; - volatile struct dbdma_cmd *jump_addr; - - c1 = pb->cap_cmd[fr]; - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; - bpp = pb->gfmt[fr]; /* gfmt = bpp */ - count = bpp * pb->gwidth[fr]; - nlines = pb->gheight[fr]; + dbdma_cmd_ptr c1; + dbdma_cmd_ptr jump_addr; + gbuf_ptr gbuf = &pb->gbuf[fr]; + int fmt = gbuf->fmt; + + c1 = gbuf->cap_cmd; + nlines = gbuf->height; + interlace = (nlines > pb->maxlines/2) ? 1 : 0; + count = palette2fmt[fmt].bpp * gbuf->width; #ifdef PLANB_GSCANLINE scanline = pb->gbytes_per_line; #else - pb->lsize[fr] = count; - pb->lnum[fr] = 0; + gbuf->lsize = count; + gbuf->lnum = 0; #endif /* Do video in: */ @@ -1166,22 +1300,17 @@ /* Preamble commands: */ tab_cmd_dbdma(c1++, DBDMA_NOP, 0); tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++; - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, - bpp, 0, pb)) == NULL) { - printk(KERN_WARNING "PlanB: encountered serious problems\n"); - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); - return (pb->cap_cmd[fr] + 2); - } - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), - PLANB_SET(FIELD_SYNC)); + c1 = cmd_geo_setup(c1, gbuf->width, nlines, interlace, fmt, 0, pb); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.wait_sel), + PLANB_SET(FIELD_SYNC)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(ODD_FIELD)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(ODD_FIELD)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), - PLANB_SET(DMA_ABORT)); + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), + PLANB_SET(DMA_ABORT)); if (interlace) { stepsize = 2; @@ -1194,12 +1323,12 @@ /* even field data: */ - pagei = pb->gbuf_idx[fr]; + pagei = gbuf->idx; #ifdef PLANB_GSCANLINE for (i = 0; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pagei - + i * scanline / PAGE_SIZE]), jump); + tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, + virt_to_bus(pb->rawbuf[pagei + i * scanline / PAGE_SIZE]), + jump); } #else i = 0; @@ -1219,18 +1348,25 @@ leftover1 = 0; else { if(lov0 >= count) { + /* can happen only when interlacing; then other field + * uses up leftover space (lov0 - count). */ tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base + count * nlpp * stepsize + leftover1, jump); } else { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] + /* start of free space at end of page: */ + pb->l_to_addr[fr][gbuf->lnum] = pb->rawbuf[pagei] + count * nlpp * stepsize + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; + /* index where continuation is: */ + pb->l_to_next_idx[fr][gbuf->lnum] = pagei + 1; + /* How much is left to do in next page: */ + pb->l_to_next_size[fr][gbuf->lnum] = count - lov0; tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; + virt_to_bus(pb->rawbuf[gbuf->l_fr_addr_idx + + gbuf->lnum]), jump); + if(++gbuf->lnum > MAX_LNUM) { + /* FIXME: error condition! */ + gbuf->lnum--; + } } leftover1 = count * stepsize - lov0; i += stepsize; @@ -1248,11 +1384,11 @@ /* Sync to odd field */ tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(ODD_FIELD)); tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->ch1.br_sel), PLANB_SET(DMA_ABORT)); /* odd field data: */ @@ -1260,14 +1396,14 @@ jump = virt_to_bus(jump_addr); #ifdef PLANB_GSCANLINE for (i = 1; i < nlines; i += stepsize) { - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, + tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, virt_to_bus(pb->rawbuf[pagei + i * scanline / PAGE_SIZE]), jump); } #else i = 1; leftover1 = 0; - pagei = pb->gbuf_idx[fr]; + pagei = gbuf->idx; if(nlines <= 1) goto skip; do { @@ -1290,16 +1426,18 @@ leftover1 = 0; else { if(lov0 > count) { - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] + pb->l_to_addr[fr][gbuf->lnum] = pb->rawbuf[pagei] + count * (nlpp * stepsize + 1) + leftover1; - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize + pb->l_to_next_idx[fr][gbuf->lnum] = pagei + 1; + pb->l_to_next_size[fr][gbuf->lnum] = count * stepsize - lov0; tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] - + pb->lnum[fr]]), jump); - if(++pb->lnum[fr] > MAX_LNUM) - pb->lnum[fr]--; + virt_to_bus(pb->rawbuf[gbuf->l_fr_addr_idx + + gbuf->lnum]), jump); + if(++gbuf->lnum > MAX_LNUM) { + /* FIXME: error condition! */ + gbuf->lnum--; + } i += stepsize; } leftover1 = count * stepsize - lov0; @@ -1313,7 +1451,7 @@ #endif /* PLANB_GSCANLINE */ cmd_tab_data_end: - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), + tab_cmd_store(c1++, (unsigned)(&pb->planb_base_bus->intr_stat), (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); /* stop it */ tab_cmd_dbdma(c1, DBDMA_STOP, 0); @@ -1327,50 +1465,54 @@ unsigned int stat, astat; struct planb *pb = (struct planb *)dev_id; - IDEBUG("PlanB: planb_irq()\n"); + IDBG("PlanB: planb_irq()\n"); /* get/clear interrupt status bits */ eieio(); - stat = in_le32(&pb->planb_base->intr_stat); + stat = readl(&pb->planb_base->intr_stat); astat = stat & pb->intr_mask; - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ - & ~astat & stat & ~PLANB_GEN_IRQ); - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); + writel(PLANB_FRM_IRQ & ~astat & stat & ~PLANB_GEN_IRQ, + &pb->planb_base->intr_stat); + IDBG("PlanB: stat = %X, astat = %X\n", stat, astat); if(astat & PLANB_FRM_IRQ) { - unsigned int fr = stat >> 9; + unsigned int fr = stat >> 9; + gbuf_ptr gbuf = &pb->gbuf[fr]; #ifndef PLANB_GSCANLINE - int i; + int i; #endif - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); + IDBG("PlanB: PLANB_FRM_IRQ\n"); pb->gcount++; - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", + IDBG("PlanB: grab %d: fr = %d, gcount = %d\n", pb->grabbing, fr, pb->gcount); #ifndef PLANB_GSCANLINE - IDEBUG("PlanB: %d * %d bytes are being copied over\n", - pb->lnum[fr], pb->lsize[fr]); - for(i = 0; i < pb->lnum[fr]; i++) { - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; + /* Now that the buffer is full, copy those lines that fell + * on a page boundary from the spare buffers back to where + * they belong. */ + IDBG("PlanB: %d * %d bytes are being copied over\n", + gbuf->lnum, gbuf->lsize); + for(i = 0; i < gbuf->lnum; i++) { + int first = gbuf->lsize - pb->l_to_next_size[fr][i]; memcpy(pb->l_to_addr[fr][i], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], + pb->rawbuf[gbuf->l_fr_addr_idx + i], first); memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, + pb->rawbuf[gbuf->l_fr_addr_idx + i] + first, pb->l_to_next_size[fr][i]); } #endif - pb->frame_stat[fr] = GBUFFER_DONE; + *gbuf->status = GBUFFER_DONE; pb->grabbing--; wake_up_interruptible(&pb->capq); return; } /* incorrect interrupts? */ pb->intr_mask = PLANB_CLR_IRQ; - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" + writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat); + printk(KERN_ERR "PlanB: IRQ lockup, cleared interrupts" " unconditionally\n"); } @@ -1380,16 +1522,22 @@ static int planb_open(struct video_device *dev, int mode) { - struct planb *pb = (struct planb *)dev; + struct planb *pb = (struct planb *)dev->priv; + int err; - if (pb->user == 0) { - int err; + /* first open on driver? */ + if(pb->vid_user + pb->vbi_user == 0) { if((err = planb_prepare_open(pb)) != 0) return err; } - pb->user++; + /* first open on video dev? */ + if(pb->vid_user == 0) { + if((err = planb_prepare_video(pb)) != 0) + return err; + } + pb->vid_user++; - DEBUG("PlanB: device opened\n"); + DBG("PlanB: device opened\n"); MOD_INC_USE_COUNT; return 0; @@ -1397,44 +1545,46 @@ static void planb_close(struct video_device *dev) { - struct planb *pb = (struct planb *)dev; + struct planb *pb = (struct planb *)dev->priv; - if(pb->user < 1) /* ??? */ - return; planb_lock(pb); - if (pb->user == 1) { - if (pb->overlay) { + /* last close? then stop everything... */ + if(--pb->vid_user == 0) { + if(pb->overlay) { planb_dbdma_stop(&pb->planb_base->ch2); planb_dbdma_stop(&pb->planb_base->ch1); pb->overlay = 0; } - planb_prepare_close(pb); + planb_close_video(pb); } - pb->user--; + /* last open on PlanB hardware? */ + if(pb->vid_user + pb->vbi_user == 0) + planb_prepare_close(pb); planb_unlock(pb); - DEBUG("PlanB: device closed\n"); + DBG("PlanB: device closed\n"); - MOD_DEC_USE_COUNT; + MOD_DEC_USE_COUNT; + return; } static long planb_read(struct video_device *v, char *buf, unsigned long count, int nonblock) { - DEBUG("planb: read request\n"); + DBG("planb: read request\n"); return -EINVAL; } static long planb_write(struct video_device *v, const char *buf, unsigned long count, int nonblock) { - DEBUG("planb: write request\n"); + DBG("planb: write request\n"); return -EINVAL; } static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg) { - struct planb *pb=(struct planb *)dev; + struct planb *pb=(struct planb *)dev->priv; switch (cmd) { @@ -1442,7 +1592,7 @@ { struct video_capability b; - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); + DBG("PlanB: IOCTL VIDIOCGCAP\n"); strcpy (b.name, pb->video_dev.name); b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | @@ -1461,50 +1611,48 @@ case VIDIOCSFBUF: { struct video_buffer v; - unsigned short bpp; unsigned int fmt; - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); + DBG("PlanB: IOCTL VIDIOCSFBUF\n"); - if (!capable(CAP_SYS_ADMIN) - || !capable(CAP_SYS_RAWIO)) + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) return -EPERM; - if (copy_from_user(&v, arg,sizeof(v))) + if (copy_from_user(&v, arg, sizeof(v))) return -EFAULT; planb_lock(pb); switch(v.depth) { - case 8: - bpp = 1; - fmt = PLANB_GRAY; + /* xawtv only asks for 8 bit in static grey, but + * there is no way to know what it really means.. */ + case 8: + fmt = VIDEO_PALETTE_GREY; break; - case 15: - case 16: - bpp = 2; - fmt = PLANB_COLOUR15; + case 15: + fmt = VIDEO_PALETTE_RGB555; break; - case 24: - case 32: - bpp = 4; - fmt = PLANB_COLOUR32; + case 32: + fmt = VIDEO_PALETTE_RGB32; break; - default: + /* We don't deliver these two... */ + case 16: + case 24: + default: planb_unlock(pb); return -EINVAL; } - if (bpp * v.width > v.bytesperline) { + if (palette2fmt[fmt].bpp * v.width > v.bytesperline) { planb_unlock(pb); return -EINVAL; } - pb->win.bpp = bpp; + pb->win.bpp = palette2fmt[fmt].bpp; pb->win.color_fmt = fmt; - pb->frame_buffer_phys = (unsigned long) v.base; + pb->fb.phys = (unsigned long) v.base; pb->win.sheight = v.height; pb->win.swidth = v.width; pb->picture.depth = pb->win.depth = v.depth; pb->win.bpl = pb->win.bpp * pb->win.swidth; pb->win.pad = v.bytesperline - pb->win.bpl; - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," + DBG("PlanB: Display at %p is %d by %d, bytedepth %d," " bpl %d (+ %d)\n", v.base, v.width,v.height, pb->win.bpp, pb->win.bpl, pb->win.pad); @@ -1521,9 +1669,9 @@ { struct video_buffer v; - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); + DBG("PlanB: IOCTL VIDIOCGFBUF\n"); - v.base = (void *)pb->frame_buffer_phys; + v.base = (void *)pb->fb.phys; v.height = pb->win.sheight; v.width = pb->win.swidth; v.depth = pb->win.depth; @@ -1539,7 +1687,7 @@ if(copy_from_user(&i, arg, sizeof(i))) return -EFAULT; if(i==0) { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); + DBG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); if (!(pb->overlay)) return 0; @@ -1548,9 +1696,9 @@ overlay_stop(pb); planb_unlock(pb); } else { - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); + DBG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); - if (pb->frame_buffer_phys == 0 || + if (pb->fb.phys == 0 || pb->win.width == 0 || pb->win.height == 0) return -EINVAL; @@ -1569,7 +1717,7 @@ { struct video_channel v; - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); + DBG("PlanB: IOCTL VIDIOCGCHAN\n"); if(copy_from_user(&v, arg,sizeof(v))) return -EFAULT; @@ -1598,7 +1746,7 @@ { struct video_channel v; - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); + DBG("PlanB: IOCTL VIDIOCSCHAN\n"); if(copy_from_user(&v, arg, sizeof(v))) return -EFAULT; @@ -1616,6 +1764,7 @@ maxlines = PLANB_NTSC_MAXLINES; break; default: + DBG(" invalid norm %d.\n", v.norm); return -EINVAL; break; } @@ -1628,7 +1777,7 @@ /* Stop overlay if running */ suspend_overlay(pb); for(i = 0; i < MAX_GBUFFERS; i++) - pb->gnorm_switch[i] = 1; + pb->gbuf[i].norm_switch = 1; /* I know it's an overkill, but.... */ fill_cmd_buff(pb); /* ok, now init it accordingly */ @@ -1651,6 +1800,7 @@ ~7) | 4), pb); break; default: + DBG(" invalid channel %d.\n", v.channel); return -EINVAL; break; } @@ -1661,22 +1811,9 @@ { struct video_picture vp = pb->picture; - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); - - switch(pb->win.color_fmt) { - case PLANB_GRAY: - vp.palette = VIDEO_PALETTE_GREY; - case PLANB_COLOUR15: - vp.palette = VIDEO_PALETTE_RGB555; - break; - case PLANB_COLOUR32: - vp.palette = VIDEO_PALETTE_RGB32; - break; - default: - vp.palette = 0; - break; - } + DBG("PlanB: IOCTL VIDIOCGPICT\n"); + vp.palette = pb->win.color_fmt; if(copy_to_user(arg,&vp,sizeof(vp))) return -EFAULT; return 0; @@ -1685,12 +1822,13 @@ { struct video_picture vp; - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); + DBG("PlanB: IOCTL VIDIOCSPICT\n"); if(copy_from_user(&vp,arg,sizeof(vp))) return -EFAULT; pb->picture = vp; /* Should we do sanity checks here? */ + planb_lock(pb); saa_set (SAA7196_BRIG, (unsigned char) ((pb->picture.brightness) >> 8), pb); saa_set (SAA7196_HUEC, (unsigned char) @@ -1699,6 +1837,7 @@ ((pb->picture.colour) >> 9), pb); saa_set (SAA7196_CONT, (unsigned char) ((pb->picture.contrast) >> 9), pb); + planb_unlock(pb); return 0; } @@ -1708,7 +1847,7 @@ struct video_clip clip; int i; - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); + DBG("PlanB: IOCTL VIDIOCSWIN\n"); if(copy_from_user(&vw,arg,sizeof(vw))) return -EFAULT; @@ -1728,6 +1867,9 @@ pb->win.height = vw.height; fill_cmd_buff(pb); } + DBG("PlanB: Window at (%d,%d) size %dx%d\n", vw.x, vw.y, vw.width, + vw.height); + /* Reset clip mask */ memset ((void *) pb->mask, 0xff, (pb->maxlines * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); @@ -1747,7 +1889,7 @@ { struct video_window vw; - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); + DBG("PlanB: IOCTL VIDIOCGWIN\n"); vw.x=pb->win.x; vw.y=pb->win.y; @@ -1762,30 +1904,32 @@ return 0; } case VIDIOCSYNC: { - int i; + int i; + gbuf_ptr gbuf; - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); + DBG("PlanB: IOCTL VIDIOCSYNC\n"); if(copy_from_user((void *)&i,arg,sizeof(int))) return -EFAULT; - IDEBUG("PlanB: sync to frame %d\n", i); + DBG("PlanB: sync to frame %d\n", i); if(i > (MAX_GBUFFERS - 1) || i < 0) return -EINVAL; + gbuf = &pb->gbuf[i]; chk_grab: - switch (pb->frame_stat[i]) { + switch (*gbuf->status) { case GBUFFER_UNUSED: return -EINVAL; case GBUFFER_GRABBING: - IDEBUG("PlanB: waiting for grab" + DBG("PlanB: waiting for grab" " done (%d)\n", i); interruptible_sleep_on(&pb->capq); if(signal_pending(current)) return -EINTR; goto chk_grab; case GBUFFER_DONE: - pb->frame_stat[i] = GBUFFER_UNUSED; + *gbuf->status = GBUFFER_UNUSED; break; } return 0; @@ -1794,17 +1938,19 @@ case VIDIOCMCAPTURE: { struct video_mmap vm; - volatile unsigned int status; + int fr; - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); + DBG("PlanB: IOCTL VIDIOCMCAPTURE\n"); if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) return -EFAULT; - status = pb->frame_stat[vm.frame]; - if (status != GBUFFER_UNUSED) - return -EBUSY; + fr = vm.frame; + if(fr > (MAX_GBUFFERS - 1) || fr < 0) + return -EINVAL; + if (*pb->gbuf[fr].status != GBUFFER_UNUSED) + return -EBUSY; - return vgrab(pb, &vm); + return vgrab(pb, &vm); } case VIDIOCGMBUF: @@ -1812,7 +1958,7 @@ int i; struct video_mbuf vm; - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); + DBG("PlanB: IOCTL VIDIOCGMBUF\n"); memset(&vm, 0 , sizeof(vm)); vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; @@ -1824,11 +1970,27 @@ return 0; } + case VIDIOCGUNIT: + { + struct video_unit vu; + + DBG("PlanB: IOCTL VIDIOCGUNIT\n"); + + vu.video=pb->video_dev.minor; + vu.vbi=pb->vbi_dev.minor; + vu.radio=VIDEO_NO_UNIT; + vu.audio=VIDEO_NO_UNIT; + vu.teletext=VIDEO_NO_UNIT; + if(copy_to_user((void *)arg, (void *)&vu, sizeof(vu))) + return -EFAULT; + return 0; + } + case PLANBIOCGSAAREGS: { struct planb_saa_regs preg; - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); + DBG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); if(copy_from_user(&preg, arg, sizeof(preg))) return -EFAULT; @@ -1845,7 +2007,7 @@ { struct planb_saa_regs preg; - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); + DBG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); if(copy_from_user(&preg, arg, sizeof(preg))) return -EFAULT; @@ -1859,10 +2021,14 @@ { struct planb_stat_regs pstat; - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); + DBG("PlanB: IOCTL PLANBIOCGSTAT\n"); - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); + pstat.ch1_stat = readl(&pb->planb_base->ch1.status); + pstat.ch2_stat = readl(&pb->planb_base->ch2.status); + pstat.ch1_cmdbase = (unsigned long)pb->vid_cbo.start; + pstat.ch2_cmdbase = (unsigned long)pb->clip_cbo.start; + pstat.ch1_cmdptr = readl(&pb->planb_base->ch1.cmdptr); + pstat.ch2_cmdptr = readl(&pb->planb_base->ch2.cmdptr); pstat.saa_stat0 = saa_status(0, pb); pstat.saa_stat1 = saa_status(1, pb); @@ -1871,11 +2037,11 @@ return -EFAULT; return 0; } - + case PLANBIOCSMODE: { int v; - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); + DBG("PlanB: IOCTL PLANBIOCSMODE\n"); if(copy_from_user(&v, arg, sizeof(v))) return -EFAULT; @@ -1902,7 +2068,7 @@ case PLANBIOCGMODE: { int v=pb->win.mode; - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); + DBG("PlanB: IOCTL PLANBIOCGMODE\n"); if(copy_to_user(arg,&v,sizeof(v))) return -EFAULT; @@ -1912,25 +2078,28 @@ case PLANBG_GRAB_BPL: { int v=pb->gbytes_per_line; - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); + DBG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); if(copy_to_user(arg,&v,sizeof(v))) return -EFAULT; return 0; } #endif /* PLANB_GSCANLINE */ + +/* These serve only for debugging... */ +#ifdef DEBUG case PLANB_INTR_DEBUG: { int i; - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); + DBG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); if(copy_from_user(&i, arg, sizeof(i))) return -EFAULT; /* avoid hang ups all together */ for (i = 0; i < MAX_GBUFFERS; i++) { - if(pb->frame_stat[i] == GBUFFER_GRABBING) { - pb->frame_stat[i] = GBUFFER_DONE; + if(*pb->gbuf[i].status == GBUFFER_GRABBING) { + *pb->gbuf[i].status = GBUFFER_DONE; } } if(pb->grabbing) @@ -1942,7 +2111,7 @@ int i; struct planb_any_regs any; - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); + DBG("PlanB: IOCTL PLANB_INV_REGS\n"); if(copy_from_user(&any, arg, sizeof(any))) return -EFAULT; @@ -1952,42 +2121,70 @@ return -EINVAL; for (i = 0; i < any.bytes; i++) { any.data[i] = - in_8((unsigned char *)pb->planb_base + readb((unsigned char *)pb->planb_base + any.offset + i); } if(copy_to_user(arg,&any,sizeof(any))) return -EFAULT; return 0; } + case PLANBIOCGDBDMABUF: + { + struct planb_buf_regs buf; + dbdma_cmd_ptr dc; + int i; + + DBG("PlanB: IOCTL PLANBIOCGDBDMABUF\n"); + + if(copy_from_user(&buf, arg, sizeof(buf))) + return -EFAULT; + buf.end &= ~0xf; + if( (buf.start < 0) || (buf.end < 0x10) || + (buf.end < buf.start+0x10) || + (buf.end > 2*pb->tab_size) ) + return -EINVAL; + + printk ("PlanB DBDMA command buffer:\n"); + for (i=(buf.start>>4); i<=(buf.end>>4); i++) { + printk(" 0x%04x:", i<<4); + dc = pb->vid_cbo.start + i; + printk (" %04x %04x %08x %08x %04x %04x\n", + dc->req_count, dc->command, dc->phy_addr, + dc->cmd_dep, dc->res_count, dc->xfer_status); + } + return 0; + } +#endif /* DEBUG */ + default: { - DEBUG("PlanB: Unimplemented IOCTL\n"); + DBG("PlanB: Unimplemented IOCTL: %d (0x%x)\n", cmd, cmd); return -ENOIOCTLCMD; } /* Some IOCTLs are currently unsupported on PlanB */ case VIDIOCGTUNER: { - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); + DBG("PlanB: IOCTL VIDIOCGTUNER\n"); goto unimplemented; } case VIDIOCSTUNER: { - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); + DBG("PlanB: IOCTL VIDIOCSTUNER\n"); goto unimplemented; } case VIDIOCSFREQ: { - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); + DBG("PlanB: IOCTL VIDIOCSFREQ\n"); goto unimplemented; } case VIDIOCGFREQ: { - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); + DBG("PlanB: IOCTL VIDIOCGFREQ\n"); goto unimplemented; } case VIDIOCKEY: { - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); + DBG("PlanB: IOCTL VIDIOCKEY\n"); goto unimplemented; } case VIDIOCSAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); + DBG("PlanB: IOCTL VIDIOCSAUDIO\n"); goto unimplemented; } case VIDIOCGAUDIO: { - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); + DBG("PlanB: IOCTL VIDIOCGAUDIO\n"); goto unimplemented; } unimplemented: - DEBUG(" Unimplemented\n"); + DBG(" Unimplemented\n"); return -ENOIOCTLCMD; } return 0; @@ -1995,9 +2192,9 @@ static int planb_mmap(struct video_device *dev, const char *adr, unsigned long size) { - int i; - struct planb *pb = (struct planb *)dev; - unsigned long start = (unsigned long)adr; + struct planb *pb = (struct planb *)dev->priv; + unsigned long start = (unsigned long)adr; + int i; if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) return -EINVAL; @@ -2006,7 +2203,7 @@ if((err=grabbuf_alloc(pb))) return err; } - for (i = 0; i < pb->rawbuf_size; i++) { + for (i = 0; i < pb->rawbuf_nchunks; i++) { if (remap_page_range(start, virt_to_phys((void *)pb->rawbuf[i]), PAGE_SIZE, PAGE_SHARED)) return -EAGAIN; @@ -2018,77 +2215,223 @@ return 0; } +/********************************** + * VBI device operation functions * + **********************************/ + +static long planb_vbi_read(struct video_device *dev, char *buf, + unsigned long count, int nonblock) +{ + struct planb *pb = (struct planb *)dev->priv; + int q,todo; + DECLARE_WAITQUEUE(wait, current); + +/* Dummy for now */ + printk ("PlanB: VBI read %li bytes.\n", count); + return (0); + + todo=count; + while (todo && todo>(q=VBIBUF_SIZE-pb->vbip)) + { + if(copy_to_user((void *) buf, (void *) pb->vbibuf+pb->vbip, q)) + return -EFAULT; + todo-=q; + buf+=q; + + add_wait_queue(&pb->vbiq, &wait); + current->state = TASK_INTERRUPTIBLE; + if (todo && q==VBIBUF_SIZE-pb->vbip) { + if(nonblock) { + remove_wait_queue(&pb->vbiq, &wait); + current->state = TASK_RUNNING; + if(count==todo) + return -EWOULDBLOCK; + return count-todo; + } + schedule(); + if(signal_pending(current)) { + remove_wait_queue(&pb->vbiq, &wait); + current->state = TASK_RUNNING; + if(todo==count) + return -EINTR; + else + return count-todo; + } + } + remove_wait_queue(&pb->vbiq, &wait); + current->state = TASK_RUNNING; + } + if (todo) { + if(copy_to_user((void *) buf, (void *) pb->vbibuf+pb->vbip, + todo)) + return -EFAULT; + pb->vbip+=todo; + } + return count; +} + +static unsigned int planb_vbi_poll(struct video_device *dev, + struct file *file, poll_table *wait) +{ + struct planb *pb = (struct planb *)dev->priv; + unsigned int mask = 0; + + printk ("PlanB: VBI poll.\n"); + poll_wait(file, &pb->vbiq, wait); + + if (pb->vbip < VBIBUF_SIZE) + mask |= (POLLIN | POLLRDNORM); + + return mask; +} + +static int planb_vbi_open(struct video_device *dev, int flags) +{ + struct planb *pb = (struct planb *)dev->priv; + int err; + + /* first open on the driver? */ + if(pb->vid_user + pb->vbi_user == 0) { + if((err = planb_prepare_open(pb)) != 0) + return err; + } + /* first open on the vbi device? */ + if(pb->vbi_user == 1) { + if((err = planb_prepare_vbi(pb)) != 0) + return err; + } + ++pb->vbi_user; + + DBG("PlanB: VBI open\n"); + + MOD_INC_USE_COUNT; + return 0; +} + +static void planb_vbi_close(struct video_device *dev) +{ + struct planb *pb = (struct planb *)dev->priv; + + /* last close on vbi device? */ + if(--pb->vbi_user == 0) { + planb_close_vbi(pb); + } + /* last close on any planb device? */ + if(pb->vid_user + pb->vbi_user == 0) { + planb_prepare_close(pb); + } + + DBG("PlanB: VBI close\n"); + + MOD_DEC_USE_COUNT; + return; +} + +static int planb_vbi_ioctl(struct video_device *dev, unsigned int cmd, + void *arg) +{ + switch (cmd) { + /* This is only for alevt */ + case BTTV_VBISIZE: + DBG("PlanB: IOCTL BTTV_VBISIZE.\n"); + return VBIBUF_SIZE; + default: + DBG("PlanB: Unimplemented VBI IOCTL no. %i.\n", cmd); + return -EINVAL; + } +} + static struct video_device planb_template= { owner: THIS_MODULE, name: PLANB_DEVICE_NAME, - type: VID_TYPE_OVERLAY, + type: VID_TYPE_CAPTURE|VID_TYPE_OVERLAY, hardware: VID_HARDWARE_PLANB, open: planb_open, close: planb_close, read: planb_read, - write: planb_write, + write: planb_write, /* not implemented */ ioctl: planb_ioctl, mmap: planb_mmap, /* mmap? */ }; -static int init_planb(struct planb *pb) +static struct video_device planb_vbi_template= +{ + owner: THIS_MODULE, + name: PLANB_VBI_NAME, + type: VID_TYPE_CAPTURE|VID_TYPE_TELETEXT, + hardware: VID_HARDWARE_PLANB, + open: planb_vbi_open, + close: planb_vbi_close, + read: planb_vbi_read, + write: planb_write, /* not implemented */ + poll: planb_vbi_poll, + ioctl: planb_vbi_ioctl, +}; + +static int __devinit init_planb(struct planb *pb) { unsigned char saa_rev; int i, result; unsigned long flags; - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); + printk(KERN_INFO "PlanB: PowerMacintosh video input driver rev. %s\n", PLANB_REV); + + pb->video_dev.minor = -1; + pb->vid_user = 0; + /* Simple sanity check */ if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { printk(KERN_ERR "PlanB: Option(s) invalid\n"); return -2; } + memset ((void *) &pb->win, 0, sizeof (struct planb_window)); pb->win.norm = def_norm; pb->win.mode = PLANB_TV_MODE; /* TV mode */ - pb->win.interlace=1; - pb->win.x=0; - pb->win.y=0; - pb->win.width=768; /* 640 */ - pb->win.height=576; /* 480 */ - pb->maxlines=576; -#if 0 - btv->win.cropwidth=768; /* 640 */ - btv->win.cropheight=576; /* 480 */ - btv->win.cropx=0; - btv->win.cropy=0; -#endif - pb->win.pad=0; - pb->win.bpp=4; - pb->win.depth=32; - pb->win.color_fmt=PLANB_COLOUR32; - pb->win.bpl=1024*pb->win.bpp; - pb->win.swidth=1024; - pb->win.sheight=768; + pb->win.interlace = 1; + pb->win.x = 0; + pb->win.y = 0; + pb->win.width = 768; /* 640 */ + pb->win.height = 576; /* 480 */ + pb->win.pad = 0; + pb->win.bpp = 4; + pb->win.depth = 32; + pb->win.color_fmt = VIDEO_PALETTE_RGB32; + pb->win.bpl = 1024 * pb->win.bpp; + pb->win.swidth = 1024; + pb->win.sheight = 768; + pb->maxlines = 576; #ifdef PLANB_GSCANLINE if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE || (pb->gbytes_per_line <= 0)) return -3; else { /* page align pb->gbytes_per_line for DMA purpose */ - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) - i>>=1; + for(i = PAGE_SIZE; pb->gbytes_per_line < (i >> 1);) + i >>= 1; pb->gbytes_per_line = i; } #endif pb->tab_size = PLANB_MAXLINES + 40; pb->suspend = 0; init_MUTEX(&pb->lock); - pb->ch1_cmd = 0; - pb->ch2_cmd = 0; + pb->vid_cbo.start = 0; + pb->clip_cbo.start = 0; pb->mask = 0; - pb->priv_space = 0; - pb->offset = 0; - pb->user = 0; + pb->vid_raw = 0; pb->overlay = 0; init_waitqueue_head(&pb->suspendq); pb->cmd_buff_inited = 0; - pb->frame_buffer_phys = 0; + pb->fb.phys = 0; + pb->fb.offset = 0; + + /* VBI stuff: */ + pb->vbi_dev.minor = -1; + pb->vbi_user = 0; + pb->vbirunning = 0; + pb->vbip = 0; + pb->vbibuf = 0; + init_waitqueue_head(&pb->vbiq); /* Reset DMA controllers */ planb_dbdma_stop(&pb->planb_base->ch2); @@ -2117,9 +2460,6 @@ disable_irq(pb->irq); restore_flags(flags); - /* Now add the template and register the device unit. */ - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); - pb->picture.brightness=0x90<<8; pb->picture.contrast = 0x70 << 8; pb->picture.colour = 0x70<<8; @@ -2127,31 +2467,41 @@ pb->picture.whiteness = 0; pb->picture.depth = pb->win.depth; - pb->frame_stat=NULL; init_waitqueue_head(&pb->capq); for(i=0; igbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; - pb->gwidth[i]=0; - pb->gheight[i]=0; - pb->gfmt[i]=0; - pb->cap_cmd[i]=NULL; + gbuf_ptr gbuf = &pb->gbuf[i]; + + gbuf->idx = PLANB_MAX_FBUF * i / PAGE_SIZE; + gbuf->width=0; + gbuf->height=0; + gbuf->fmt=0; + gbuf->cap_cmd=NULL; #ifndef PLANB_GSCANLINE - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF + gbuf->l_fr_addr_idx = MAX_GBUFFERS * (PLANB_MAX_FBUF / PAGE_SIZE + 1) + MAX_LNUM * i; - pb->lsize[i] = 0; - pb->lnum[i] = 0; + gbuf->lsize = 0; + gbuf->lnum = 0; #endif } pb->rawbuf=NULL; pb->grabbing=0; /* enable interrupts */ - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); + writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat); pb->intr_mask = PLANB_FRM_IRQ; enable_irq(pb->irq); + /* Now add the templates and register the device units. */ + memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); + pb->video_dev.priv = pb; + memcpy(&pb->vbi_dev,&planb_vbi_template,sizeof(planb_vbi_template)); + if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0) return -1; + if(video_register_device(&pb->vbi_dev, VFL_TYPE_VBI, vbi_nr)<0) { + video_unregister_device(&pb->video_dev); + return -1; + } return 0; } @@ -2163,134 +2513,91 @@ static int find_planb(void) { struct planb *pb; - struct device_node *planb_devices; - unsigned char dev_fn, confreg, bus; - unsigned int old_base, new_base; - unsigned int irq; - struct pci_dev *pdev; + struct pci_dev *pdev = NULL; + unsigned long base; + u16 cmd; + int planb_num = 0; if (_machine != _MACH_Pmac) return 0; - planb_devices = find_devices("planb"); - if (planb_devices == 0) { - planb_num=0; + pdev = pci_find_device(APPLE_VENDOR_ID, PLANB_DEV_ID, pdev); + if (pdev == NULL) { printk(KERN_WARNING "PlanB: no device found!\n"); return planb_num; } - if (planb_devices->next != NULL) - printk(KERN_ERR "Warning: only using first PlanB device!\n"); - pb = &planbs[0]; + pb = &planbs; planb_num = 1; + base = pdev->resource[0].start; - if (planb_devices->n_addrs != 1) { - printk (KERN_WARNING "PlanB: expecting 1 address for planb " - "(got %d)", planb_devices->n_addrs); - return 0; - } - - if (planb_devices->n_intrs == 0) { - printk(KERN_WARNING "PlanB: no intrs for device %s\n", - planb_devices->full_name); - return 0; - } else { - irq = planb_devices->intrs[0].line; - } - - /* Initialize PlanB's PCI registers */ - - /* There is a bug with the way OF assigns addresses - to the devices behind the chaos bridge. - control needs only 0x1000 of space, but decodes only - the upper 16 bits. It therefore occupies a full 64K. - OF assigns the planb controller memory within this space; - so we need to change that here in order to access planb. */ - - /* We remap to 0xf1000000 in hope that nobody uses it ! */ - - bus = (planb_devices->addrs[0].space >> 16) & 0xff; - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; - confreg = planb_devices->addrs[0].space & 0xff; - old_base = planb_devices->addrs[0].address; - new_base = 0xf1000000; - - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " - "membase 0x%x (base reg. 0x%x)\n", - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); - - pdev = pci_find_slot (bus, dev_fn); - if (!pdev) { - printk(KERN_ERR "cannot find slot\n"); - /* XXX handle error */ - } + DBG("PlanB: Found device %s, membase 0x%lx, irq %d\n", + pdev->slot_name, base, pdev->irq); /* Enable response in memory space, bus mastering, use memory write and invalidate */ - pci_write_config_word (pdev, PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | - PCI_COMMAND_INVALIDATE); + pci_enable_device (pdev); + pci_set_master (pdev); + pci_read_config_word (pdev, PCI_COMMAND, &cmd); + cmd |= PCI_COMMAND_INVALIDATE; + pci_write_config_word (pdev, PCI_COMMAND, cmd); /* Set PCI Cache line size & latency timer */ + /* values copied from MacOS */ pci_write_config_byte (pdev, PCI_CACHE_LINE_SIZE, 0x8); pci_write_config_byte (pdev, PCI_LATENCY_TIMER, 0x40); - /* Set the new base address */ - pci_write_config_dword (pdev, confreg, new_base); - planb_regs = (volatile struct planb_registers *) - ioremap (new_base, 0x400); + ioremap (base, 0x400); pb->planb_base = planb_regs; - pb->planb_base_phys = (struct planb_registers *)new_base; - pb->irq = irq; + pb->planb_base_bus = (struct planb_registers *)base; + pb->irq = pdev->irq; return planb_num; } static void release_planb(void) { - int i; struct planb *pb; - for (i=0;iplanb_base->ch2); - planb_dbdma_stop(&pb->planb_base->ch1); + /* stop and flush DMAs unconditionally */ + planb_dbdma_stop(&pb->planb_base->ch2); + planb_dbdma_stop(&pb->planb_base->ch1); - /* clear and free interrupts */ - pb->intr_mask = PLANB_CLR_IRQ; - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); - free_irq(pb->irq, pb); + /* clear and free interrupts */ + pb->intr_mask = PLANB_CLR_IRQ; + writel(PLANB_CLR_IRQ, &pb->planb_base->intr_stat); + free_irq(pb->irq, pb); - /* make sure all allocated memory are freed */ - planb_prepare_close(pb); + /* make sure all allocated memory are freed */ + planb_prepare_close(pb); - printk(KERN_INFO "PlanB: unregistering with v4l\n"); - video_unregister_device(&pb->video_dev); + printk(KERN_INFO "PlanB: unregistering with v4l\n"); + video_unregister_device(&pb->video_dev); + video_unregister_device(&pb->vbi_dev); - /* note that iounmap() does nothing on the PPC right now */ - iounmap ((void *)pb->planb_base); - } + /* note that iounmap() does nothing on the PPC right now */ + iounmap ((void *)pb->planb_base); } static int __init init_planbs(void) { - int i; - - if (find_planb()<=0) + int planb_num; + + planb_num=find_planb(); + + if (planb_num < 0) return -EIO; + if (planb_num == 0) + return -ENXIO; - for (i=0; i - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) + Based largely on the old bttv driver by Ralph Metzler - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) + Additional debugging and coding by Takashi Oe + + For more information, see This program is free software; you can redistribute it and/or modify @@ -26,18 +28,17 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ +/* $Id: planb.h,v 2.9 2002/04/03 15:57:57 mlan Exp mlan $ */ #ifndef _PLANB_H_ #define _PLANB_H_ -#ifdef __KERNEL__ -#include -#include "saa7196.h" -#endif /* __KERNEL__ */ - #define PLANB_DEVICE_NAME "Apple PlanB Video-In" -#define PLANB_REV "1.0" +#define PLANB_VBI_NAME "Apple PlanB VBI" +#define PLANB_REV "2.11" + +#define APPLE_VENDOR_ID 0x106b +#define PLANB_DEV_ID 0x0004 #ifdef __KERNEL__ //#define PLANB_GSCANLINE /* use this if apps have the notion of */ @@ -47,15 +48,24 @@ #define PLANB_MAXLINES 576 #define PLANB_NTSC_MAXLINES 480 +/* Max VBI data buffer size */ +#define VBI_LINESIZE 1024 /* on SAA7196, a line can be max. 1024 pixels */ +#define VBI_START 7 /* VBI starts at line 7 */ +#define VBI_MAXLINES 16 /* 16 lines per field */ +/* We have 2 of these, but return them one at a time */ +#define VBIBUF_SIZE (VBI_LINESIZE * VBI_MAXLINES) + +#define LINE_OFFSET 1 /* between line 1 and SAA's first valid line */ + /* Uncomment your preferred norm ;-) */ #define PLANB_DEF_NORM VIDEO_MODE_PAL //#define PLANB_DEF_NORM VIDEO_MODE_NTSC //#define PLANB_DEF_NORM VIDEO_MODE_SECAM /* fields settings */ -#define PLANB_GRAY 0x1 /* 8-bit mono? */ -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ +#define PLANB_SIZE8 0x1 /* 8-bit mono? */ +#define PLANB_SIZE16 0x2 /* 16-bit mode */ +#define PLANB_SIZE32 0x4 /* 32-bit mode */ #define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ /* misc. flags for PlanB DMA operation */ @@ -67,6 +77,41 @@ #define DMA_ABORT 0x2 /* error or just out of sync if set */ #define ODD_FIELD 0x4 /* odd field is detected if set */ +/* format info and correspondance */ +struct fmts { + int bpp; /* bytes per pixel */ + int pb_fmt; /* planb format (DMA engine sub 0x40/0x44 ) */ + int saa_fmt; /* saa format: bit + SAA7196 sub 0x20: bits FS0 0 + FS1 1 + sub 0x30: bit MCT 4 + LLV 5 */ +}; + +/* This is supposed to match the VIDEO_PALETTE_* defines in + * struct video_picture in videodev.h */ +static struct fmts palette2fmt[] = { + { 0, 0, 0 }, + { 1, PLANB_SIZE8, 0x33 }, /* VIDEO_PALETTE_GREY */ + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 4, PLANB_SIZE32, 2 }, /* VIDEO_PALETTE_RGB32 */ + { 2, PLANB_SIZE16, 0 }, /* VIDEO_PALETTE_RGB555 */ + { 2, PLANB_SIZE16, 0x21 }, /* VIDEO_PALETTE_YUV422 */ + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, + { 0, 0, 0 }, +}; + +#define PLANB_PALETTE_MAX (sizeof palette2fmt / sizeof (struct fmts)) + /* for capture operations */ #define MAX_GBUFFERS 2 /* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ @@ -87,6 +132,10 @@ struct planb_stat_regs { unsigned int ch1_stat; unsigned int ch2_stat; + unsigned long ch1_cmdbase; + unsigned long ch2_cmdbase; + unsigned int ch1_cmdptr; + unsigned int ch2_cmdptr; unsigned char saa_stat0; unsigned char saa_stat1; }; @@ -97,23 +146,43 @@ unsigned char data[128]; }; +struct planb_buf_regs { + unsigned int start; + unsigned int end; +}; + /* planb private ioctls */ -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ -#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ -#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ +/* Read a saa7196 reg value */ +#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) +/* Set a saa7196 reg value */ +#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) +/* Read planb status */ +#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) +/* Get TV/VTR mode */ #define PLANB_TV_MODE 1 #define PLANB_VTR_MODE 2 -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ +#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) +/* Set TV/VTR mode */ +#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) #ifdef PLANB_GSCANLINE -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ +/* # of bytes per scanline in grab buffer */ +#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) #endif +/* This doesn't really belong here, but until someone cleans up (or defines + in the first place ;-) the VBI API, it helps alevt... */ +#define BTTV_VBISIZE _IOR('v', BASE_VIDIOCPRIVATE + 8, int) + +/* Various debugging IOCTLs */ +#ifdef DEBUG /* call wake_up_interruptible() with appropriate actions */ #define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) /* investigate which reg does what */ #define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) +/* Dump DBDMA command buffer from (int) to (int) */ +#define PLANBIOCGDBDMABUF _IOW('v', BASE_VIDIOCPRIVATE + 22, struct planb_buf_regs) +#endif /* DEBUG */ #ifdef __KERNEL__ @@ -121,27 +190,44 @@ #define PLANB_SET(x) ((x) << 16 | (x)) #define PLANB_CLR(x) ((x) << 16) -/* This represents the physical register layout */ -struct planb_registers { - volatile struct dbdma_regs ch1; /* 0x00: video in */ - volatile unsigned int even; /* 0x40: even field setting */ - volatile unsigned int odd; /* 0x44; odd field setting */ - unsigned int pad1[14]; /* empty? */ - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ - unsigned int pad2[16]; /* 0xc0: empty? */ - volatile unsigned int reg3; /* 0x100: ???? */ - volatile unsigned int intr_stat; /* 0x104: irq status */ +typedef volatile struct dbdma_cmd dbdma_cmd_t; +typedef volatile struct dbdma_cmd *dbdma_cmd_ptr; +typedef volatile struct dbdma_regs dbdma_regs_t; +typedef volatile struct dbdma_regs *dbdma_regs_ptr; + +typedef struct gbuffer gbuf_t; +typedef struct gbuffer *gbuf_ptr; + +/* grab buffer status */ +#define GBUFFER_UNUSED 0x00U +#define GBUFFER_GRABBING 0x01U +#define GBUFFER_DONE 0x02U + +/* planb interrupt status values (0x104: irq status) */ #define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ #define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ #define PLANB_FRM_IRQ 0x0100 /* end of frame */ - unsigned int pad3[1]; /* empty? */ - volatile unsigned int reg5; /* 0x10c: ??? */ - unsigned int pad4[60]; /* empty? */ - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ - char pad5[3]; - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ - char pad6[3]; - volatile unsigned char saa_status; /* SAA7196 status byte */ + +#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ + +/* This represents the physical register layout */ +struct planb_registers { + dbdma_regs_t ch1; /* 0x00: video in */ + volatile u32 even; /* 0x40: even field setting */ + volatile u32 odd; /* 0x44; odd field setting */ + u32 pad1[14]; /* empty? */ + dbdma_regs_t ch2; /* 0x80: clipmask out */ + u32 pad2[16]; /* 0xc0: empty? */ + volatile u32 reg3; /* 0x100: ???? */ + volatile u32 intr_stat; /* 0x104: irq status */ + u32 pad3[1]; /* empty? */ + volatile u32 reg5; /* 0x10c: ??? */ + u32 pad4[60]; /* empty? */ + volatile u8 saa_addr; /* 0x200: SAA subadr */ + u8 pad5[3]; + volatile u8 saa_regval; /* SAA7196 write reg. val */ + u8 pad6[3]; + volatile u8 saa_status; /* SAA7196 status byte */ /* There is more unused stuff here */ }; @@ -163,67 +249,105 @@ struct dbdma_cmd cmd; }; +/* Framebuffer info */ +struct planb_fb { + unsigned long phys; /* Framebuffer phys. base address */ + int offset; /* offset of pixel 1 */ +}; + +/* DBDMA command buffer descriptor */ +struct dbdma_cmd_buf { + dbdma_cmd_ptr start; + dbdma_cmd_ptr jumpaddr; /* where are we called from? */ + unsigned int size; + unsigned long bus; /* start address as seen from the bus */ +}; + +/* grab buffer descriptor */ +struct gbuffer { + dbdma_cmd_ptr cap_cmd; + dbdma_cmd_ptr last_cmd; + dbdma_cmd_ptr pre_cmd; + int idx; + int need_pre_capture; + int width; + int height; + unsigned int fmt; + int norm_switch; +#ifndef PLANB_GSCANLINE + int l_fr_addr_idx; + int lsize; + int lnum; +#endif + volatile unsigned int *status; /* ptr to status value */ +}; + struct planb { - struct video_device video_dev; - struct video_picture picture; /* Current picture params */ - struct video_audio audio_dev; /* Current audio params */ +/* the video device: */ + struct video_device video_dev; + struct video_picture picture; /* Current picture params */ + int vid_user; /* Users on video device */ + void *vid_raw; /* Org. alloc. mem for kfree */ + struct dbdma_cmd_buf vid_cbo; /* odd video dbdma cmd buf */ + struct dbdma_cmd_buf vid_cbe; /* even */ + void *clip_raw; + struct dbdma_cmd_buf clip_cbo; /* odd clip dbdma cmd buf */ + struct dbdma_cmd_buf clip_cbe; /* even */ + dbdma_cmd_ptr overlay_last1; + dbdma_cmd_ptr overlay_last2; - volatile struct planb_registers *planb_base; /* virt base of planb */ - struct planb_registers *planb_base_phys; /* phys base of planb */ - void *priv_space; /* Org. alloc. mem for kfree */ - int user; - unsigned int tab_size; - int maxlines; - struct semaphore lock; - unsigned int irq; /* interrupt number */ - volatile unsigned int intr_mask; - - int overlay; /* overlay running? */ - struct planb_window win; - unsigned long frame_buffer_phys; /* We need phys for DMA */ - int offset; /* offset of pixel 1 */ - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ - volatile struct dbdma_cmd *overlay_last1; - volatile struct dbdma_cmd *overlay_last2; - unsigned long ch1_cmd_phys; - volatile unsigned char *mask; /* Clipmask buffer */ - int suspend; - wait_queue_head_t suspendq; - struct planb_suspend suspended; - int cmd_buff_inited; /* cmd buffer inited? */ - - int grabbing; - unsigned int gcount; - wait_queue_head_t capq; - int last_fr; - int prev_last_fr; - unsigned char **rawbuf; - int rawbuf_size; - int gbuf_idx[MAX_GBUFFERS]; - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; - int need_pre_capture[MAX_GBUFFERS]; -#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ - int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; - unsigned int gfmt[MAX_GBUFFERS]; - int gnorm_switch[MAX_GBUFFERS]; - volatile unsigned int *frame_stat; -#define GBUFFER_UNUSED 0x00U -#define GBUFFER_GRABBING 0x01U -#define GBUFFER_DONE 0x02U +/* the hardware: */ + volatile struct planb_registers + *planb_base; /* virt base of planb */ + struct planb_registers *planb_base_bus; /* phys base of planb */ + unsigned int tab_size; + int maxlines; + unsigned int irq; /* interrupt number */ + volatile unsigned int intr_mask; + struct planb_fb fb; /* Framebuffer info */ + +/* generic stuff: */ + void *jump_raw; /* jump buffer raw space */ + dbdma_cmd_ptr jumpbuf; /* same, DBDMA_ALIGN'ed */ + struct semaphore lock; + int overlay; /* overlay running? */ + struct planb_window win; + volatile unsigned char *mask; /* Clipmask buffer */ + int suspend; + wait_queue_head_t suspendq; + struct planb_suspend suspended; + int cmd_buff_inited; /* cmd buffer inited? */ + +/* grabbing stuff: */ + int grabbing; + unsigned int gcount; + wait_queue_head_t capq; + int last_fr; + int prev_last_fr; + unsigned char **rawbuf; + int rawbuf_nchunks; + struct gbuffer gbuf[MAX_GBUFFERS]; + #ifdef PLANB_GSCANLINE - int gbytes_per_line; + int gbytes_per_line; #else -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ +#define MAX_LNUM 576 /* change this if PLANB_MAXLINES or */ /* PLANB_MAXPIXELS changes */ - int l_fr_addr_idx[MAX_GBUFFERS]; - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; -#endif + unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; + int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; + int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; +#endif /* PLANB_GSCANLINE */ + +/* VBI stuff: */ + struct video_device vbi_dev; /* VBI data device */ + int vbi_user; /* Users on vbi device */ + void *vbi_raw; + struct dbdma_cmd_buf vbi_cbo; /* odd VBI dbdma cmd buf */ + struct dbdma_cmd_buf vbi_cbe; /* even */ + int vbirunning; + int vbip; /* pointer into VBI buffer */ + unsigned char *vbibuf; /* buffer for VBI data */ + wait_queue_head_t vbiq; }; #endif /* __KERNEL__ */ --- linux-2.4.18/drivers/media/video/saa7196.h Fri May 7 20:05:30 1999 +++ linux-2.4.18-planb/drivers/media/video/saa7196.h Wed Apr 3 17:58:14 2002 @@ -3,19 +3,17 @@ scaler, and clock generator circuit (DESCpro), as used in the PlanB video input of the Powermac 7x00/8x00 series. - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) + Copyright (C) 1998 - 2002 Michel Lanners The register defines are shamelessly copied from the meteor - driver out of NetBSD (with permission), + driver out of FreeBSD (with permission), and are copyrighted (c) 1995 Mark Tinguely and Jim Lowe (Thanks !) - Additional debugging and coding by Takashi Oe (toe@unlinfo.unl.edu) - The default values used for PlanB are my mistakes. */ -/* $Id: saa7196.h,v 1.5 1999/03/26 23:28:47 mlan Exp $ */ +/* $Id: saa7196.h,v 2.3 2002/04/03 15:57:57 mlan Exp mlan $ */ #ifndef _SAA7196_H_ #define _SAA7196_H_