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Diffstat (limited to 'drivers/media/video/arv.c')
-rw-r--r--drivers/media/video/arv.c910
1 files changed, 0 insertions, 910 deletions
diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c
deleted file mode 100644
index 56ebfd5ef6f..00000000000
--- a/drivers/media/video/arv.c
+++ /dev/null
@@ -1,910 +0,0 @@
-/*
- * Colour AR M64278(VGA) driver for Video4Linux
- *
- * Copyright (C) 2003 Takeo Takahashi <takahashi.takeo@renesas.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Some code is taken from AR driver sample program for M3T-M32700UT.
- *
- * AR driver sample (M32R SDK):
- * Copyright (c) 2003 RENESAS TECHNOROGY CORPORATION
- * AND RENESAS SOLUTIONS CORPORATION
- * All Rights Reserved.
- *
- * 2003-09-01: Support w3cam by Takeo Takahashi
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/videodev.h>
-#include <media/v4l2-common.h>
-#include <linux/mutex.h>
-
-#include <asm/uaccess.h>
-#include <asm/m32r.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/byteorder.h>
-
-#if 0
-#define DEBUG(n, args...) printk(args)
-#define CHECK_LOST 1
-#else
-#define DEBUG(n, args...)
-#define CHECK_LOST 0
-#endif
-
-/*
- * USE_INT is always 0, interrupt mode is not available
- * on linux due to lack of speed
- */
-#define USE_INT 0 /* Don't modify */
-
-#define VERSION "0.03"
-
-#define ar_inl(addr) inl((unsigned long)(addr))
-#define ar_outl(val, addr) outl((unsigned long)(val),(unsigned long)(addr))
-
-extern struct cpuinfo_m32r boot_cpu_data;
-
-/*
- * CCD pixel size
- * Note that M32700UT does not support CIF mode, but QVGA is
- * supported by M32700UT hardware using VGA mode of AR LSI.
- *
- * Supported: VGA (Normal mode, Interlace mode)
- * QVGA (Always Interlace mode of VGA)
- *
- */
-#define AR_WIDTH_VGA 640
-#define AR_HEIGHT_VGA 480
-#define AR_WIDTH_QVGA 320
-#define AR_HEIGHT_QVGA 240
-#define MIN_AR_WIDTH AR_WIDTH_QVGA
-#define MIN_AR_HEIGHT AR_HEIGHT_QVGA
-#define MAX_AR_WIDTH AR_WIDTH_VGA
-#define MAX_AR_HEIGHT AR_HEIGHT_VGA
-
-/* bits & bytes per pixel */
-#define AR_BITS_PER_PIXEL 16
-#define AR_BYTES_PER_PIXEL (AR_BITS_PER_PIXEL/8)
-
-/* line buffer size */
-#define AR_LINE_BYTES_VGA (AR_WIDTH_VGA * AR_BYTES_PER_PIXEL)
-#define AR_LINE_BYTES_QVGA (AR_WIDTH_QVGA * AR_BYTES_PER_PIXEL)
-#define MAX_AR_LINE_BYTES AR_LINE_BYTES_VGA
-
-/* frame size & type */
-#define AR_FRAME_BYTES_VGA \
- (AR_WIDTH_VGA * AR_HEIGHT_VGA * AR_BYTES_PER_PIXEL)
-#define AR_FRAME_BYTES_QVGA \
- (AR_WIDTH_QVGA * AR_HEIGHT_QVGA * AR_BYTES_PER_PIXEL)
-#define MAX_AR_FRAME_BYTES \
- (MAX_AR_WIDTH * MAX_AR_HEIGHT * AR_BYTES_PER_PIXEL)
-
-#define AR_MAX_FRAME 15
-
-/* capture size */
-#define AR_SIZE_VGA 0
-#define AR_SIZE_QVGA 1
-
-/* capture mode */
-#define AR_MODE_INTERLACE 0
-#define AR_MODE_NORMAL 1
-
-struct ar_device {
- struct video_device *vdev;
- unsigned int start_capture; /* duaring capture in INT. mode. */
-#if USE_INT
- unsigned char *line_buff; /* DMA line buffer */
-#endif
- unsigned char *frame[MAX_AR_HEIGHT]; /* frame data */
- short size; /* capture size */
- short mode; /* capture mode */
- int width, height;
- int frame_bytes, line_bytes;
- wait_queue_head_t wait;
- struct mutex lock;
-};
-
-static int video_nr = -1; /* video device number (first free) */
-static unsigned char yuv[MAX_AR_FRAME_BYTES];
-
-/* module parameters */
-/* default frequency */
-#define DEFAULT_FREQ 50 /* 50 or 75 (MHz) is available as BCLK */
-static int freq = DEFAULT_FREQ; /* BCLK: available 50 or 70 (MHz) */
-static int vga; /* default mode(0:QVGA mode, other:VGA mode) */
-static int vga_interlace; /* 0 is normal mode for, else interlace mode */
-module_param(freq, int, 0);
-module_param(vga, int, 0);
-module_param(vga_interlace, int, 0);
-
-static int ar_initialize(struct video_device *dev);
-
-static inline void wait_for_vsync(void)
-{
- while (ar_inl(ARVCR0) & ARVCR0_VDS) /* wait for VSYNC */
- cpu_relax();
- while (!(ar_inl(ARVCR0) & ARVCR0_VDS)) /* wait for VSYNC */
- cpu_relax();
-}
-
-static inline void wait_acknowledge(void)
-{
- int i;
-
- for (i = 0; i < 1000; i++)
- cpu_relax();
- while (ar_inl(PLDI2CSTS) & PLDI2CSTS_NOACK)
- cpu_relax();
-}
-
-/*******************************************************************
- * I2C functions
- *******************************************************************/
-void iic(int n, unsigned long addr, unsigned long data1, unsigned long data2,
- unsigned long data3)
-{
- int i;
-
- /* Slave Address */
- ar_outl(addr, PLDI2CDATA);
- wait_for_vsync();
-
- /* Start */
- ar_outl(1, PLDI2CCND);
- wait_acknowledge();
-
- /* Transfer data 1 */
- ar_outl(data1, PLDI2CDATA);
- wait_for_vsync();
- ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN);
- wait_acknowledge();
-
- /* Transfer data 2 */
- ar_outl(data2, PLDI2CDATA);
- wait_for_vsync();
- ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN);
- wait_acknowledge();
-
- if (n == 3) {
- /* Transfer data 3 */
- ar_outl(data3, PLDI2CDATA);
- wait_for_vsync();
- ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN);
- wait_acknowledge();
- }
-
- /* Stop */
- for (i = 0; i < 100; i++)
- cpu_relax();
- ar_outl(2, PLDI2CCND);
- ar_outl(2, PLDI2CCND);
-
- while (ar_inl(PLDI2CSTS) & PLDI2CSTS_BB)
- cpu_relax();
-}
-
-
-void init_iic(void)
-{
- DEBUG(1, "init_iic:\n");
-
- /*
- * ICU Setting (iic)
- */
- /* I2C Setting */
- ar_outl(0x0, PLDI2CCR); /* I2CCR Disable */
- ar_outl(0x0300, PLDI2CMOD); /* I2CMOD ACK/8b-data/7b-addr/auto */
- ar_outl(0x1, PLDI2CACK); /* I2CACK ACK */
-
- /* I2C CLK */
- /* 50MH-100k */
- if (freq == 75) {
- ar_outl(369, PLDI2CFREQ); /* BCLK = 75MHz */
- } else if (freq == 50) {
- ar_outl(244, PLDI2CFREQ); /* BCLK = 50MHz */
- } else {
- ar_outl(244, PLDI2CFREQ); /* default: BCLK = 50MHz */
- }
- ar_outl(0x1, PLDI2CCR); /* I2CCR Enable */
-}
-
-/**************************************************************************
- *
- * Video4Linux Interface functions
- *
- **************************************************************************/
-
-static inline void disable_dma(void)
-{
- ar_outl(0x8000, M32R_DMAEN_PORTL); /* disable DMA0 */
-}
-
-static inline void enable_dma(void)
-{
- ar_outl(0x8080, M32R_DMAEN_PORTL); /* enable DMA0 */
-}
-
-static inline void clear_dma_status(void)
-{
- ar_outl(0x8000, M32R_DMAEDET_PORTL); /* clear status */
-}
-
-static inline void wait_for_vertical_sync(int exp_line)
-{
-#if CHECK_LOST
- int tmout = 10000; /* FIXME */
- int l;
-
- /*
- * check HCOUNT because we cannot check vertical sync.
- */
- for (; tmout >= 0; tmout--) {
- l = ar_inl(ARVHCOUNT);
- if (l == exp_line)
- break;
- }
- if (tmout < 0)
- printk("arv: lost %d -> %d\n", exp_line, l);
-#else
- while (ar_inl(ARVHCOUNT) != exp_line)
- cpu_relax();
-#endif
-}
-
-static ssize_t ar_read(struct file *file, char *buf, size_t count, loff_t *ppos)
-{
- struct video_device *v = video_devdata(file);
- struct ar_device *ar = v->priv;
- long ret = ar->frame_bytes; /* return read bytes */
- unsigned long arvcr1 = 0;
- unsigned long flags;
- unsigned char *p;
- int h, w;
- unsigned char *py, *pu, *pv;
-#if ! USE_INT
- int l;
-#endif
-
- DEBUG(1, "ar_read()\n");
-
- if (ar->size == AR_SIZE_QVGA)
- arvcr1 |= ARVCR1_QVGA;
- if (ar->mode == AR_MODE_NORMAL)
- arvcr1 |= ARVCR1_NORMAL;
-
- mutex_lock(&ar->lock);
-
-#if USE_INT
- local_irq_save(flags);
- disable_dma();
- ar_outl(0xa1871300, M32R_DMA0CR0_PORTL);
- ar_outl(0x01000000, M32R_DMA0CR1_PORTL);
-
- /* set AR FIFO address as source(BSEL5) */
- ar_outl(ARDATA32, M32R_DMA0CSA_PORTL);
- ar_outl(ARDATA32, M32R_DMA0RSA_PORTL);
- ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL); /* destination addr. */
- ar_outl(ar->line_buff, M32R_DMA0RDA_PORTL); /* reload address */
- ar_outl(ar->line_bytes, M32R_DMA0CBCUT_PORTL); /* byte count (bytes) */
- ar_outl(ar->line_bytes, M32R_DMA0RBCUT_PORTL); /* reload count (bytes) */
-
- /*
- * Okey , kicks AR LSI to invoke an interrupt
- */
- ar->start_capture = 0;
- ar_outl(arvcr1 | ARVCR1_HIEN, ARVCR1);
- local_irq_restore(flags);
- /* .... AR interrupts .... */
- interruptible_sleep_on(&ar->wait);
- if (signal_pending(current)) {
- printk("arv: interrupted while get frame data.\n");
- ret = -EINTR;
- goto out_up;
- }
-#else /* ! USE_INT */
- /* polling */
- ar_outl(arvcr1, ARVCR1);
- disable_dma();
- ar_outl(0x8000, M32R_DMAEDET_PORTL);
- ar_outl(0xa0861300, M32R_DMA0CR0_PORTL);
- ar_outl(0x01000000, M32R_DMA0CR1_PORTL);
- ar_outl(ARDATA32, M32R_DMA0CSA_PORTL);
- ar_outl(ARDATA32, M32R_DMA0RSA_PORTL);
- ar_outl(ar->line_bytes, M32R_DMA0CBCUT_PORTL);
- ar_outl(ar->line_bytes, M32R_DMA0RBCUT_PORTL);
-
- local_irq_save(flags);
- while (ar_inl(ARVHCOUNT) != 0) /* wait for 0 */
- cpu_relax();
- if (ar->mode == AR_MODE_INTERLACE && ar->size == AR_SIZE_VGA) {
- for (h = 0; h < ar->height; h++) {
- wait_for_vertical_sync(h);
- if (h < (AR_HEIGHT_VGA/2))
- l = h << 1;
- else
- l = (((h - (AR_HEIGHT_VGA/2)) << 1) + 1);
- ar_outl(virt_to_phys(ar->frame[l]), M32R_DMA0CDA_PORTL);
- enable_dma();
- while (!(ar_inl(M32R_DMAEDET_PORTL) & 0x8000))
- cpu_relax();
- disable_dma();
- clear_dma_status();
- ar_outl(0xa0861300, M32R_DMA0CR0_PORTL);
- }
- } else {
- for (h = 0; h < ar->height; h++) {
- wait_for_vertical_sync(h);
- ar_outl(virt_to_phys(ar->frame[h]), M32R_DMA0CDA_PORTL);
- enable_dma();
- while (!(ar_inl(M32R_DMAEDET_PORTL) & 0x8000))
- cpu_relax();
- disable_dma();
- clear_dma_status();
- ar_outl(0xa0861300, M32R_DMA0CR0_PORTL);
- }
- }
- local_irq_restore(flags);
-#endif /* ! USE_INT */
-
- /*
- * convert YUV422 to YUV422P
- * +--------------------+
- * | Y0,Y1,... |
- * | ..............Yn |
- * +--------------------+
- * | U0,U1,........Un |
- * +--------------------+
- * | V0,V1,........Vn |
- * +--------------------+
- */
- py = yuv;
- pu = py + (ar->frame_bytes / 2);
- pv = pu + (ar->frame_bytes / 4);
- for (h = 0; h < ar->height; h++) {
- p = ar->frame[h];
- for (w = 0; w < ar->line_bytes; w += 4) {
- *py++ = *p++;
- *pu++ = *p++;
- *py++ = *p++;
- *pv++ = *p++;
- }
- }
- if (copy_to_user(buf, yuv, ar->frame_bytes)) {
- printk("arv: failed while copy_to_user yuv.\n");
- ret = -EFAULT;
- goto out_up;
- }
- DEBUG(1, "ret = %d\n", ret);
-out_up:
- mutex_unlock(&ar->lock);
- return ret;
-}
-
-static int ar_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
-{
- struct video_device *dev = video_devdata(file);
- struct ar_device *ar = dev->priv;
-
- DEBUG(1, "ar_ioctl()\n");
- switch(cmd) {
- case VIDIOCGCAP:
- {
- struct video_capability *b = arg;
- DEBUG(1, "VIDIOCGCAP:\n");
- strcpy(b->name, ar->vdev->name);
- b->type = VID_TYPE_CAPTURE;
- b->channels = 0;
- b->audios = 0;
- b->maxwidth = MAX_AR_WIDTH;
- b->maxheight = MAX_AR_HEIGHT;
- b->minwidth = MIN_AR_WIDTH;
- b->minheight = MIN_AR_HEIGHT;
- return 0;
- }
- case VIDIOCGCHAN:
- DEBUG(1, "VIDIOCGCHAN:\n");
- return 0;
- case VIDIOCSCHAN:
- DEBUG(1, "VIDIOCSCHAN:\n");
- return 0;
- case VIDIOCGTUNER:
- DEBUG(1, "VIDIOCGTUNER:\n");
- return 0;
- case VIDIOCSTUNER:
- DEBUG(1, "VIDIOCSTUNER:\n");
- return 0;
- case VIDIOCGPICT:
- DEBUG(1, "VIDIOCGPICT:\n");
- return 0;
- case VIDIOCSPICT:
- DEBUG(1, "VIDIOCSPICT:\n");
- return 0;
- case VIDIOCCAPTURE:
- DEBUG(1, "VIDIOCCAPTURE:\n");
- return -EINVAL;
- case VIDIOCGWIN:
- {
- struct video_window *w = arg;
- DEBUG(1, "VIDIOCGWIN:\n");
- memset(w, 0, sizeof(*w));
- w->width = ar->width;
- w->height = ar->height;
- return 0;
- }
- case VIDIOCSWIN:
- {
- struct video_window *w = arg;
- DEBUG(1, "VIDIOCSWIN:\n");
- if ((w->width != AR_WIDTH_VGA || w->height != AR_HEIGHT_VGA) &&
- (w->width != AR_WIDTH_QVGA || w->height != AR_HEIGHT_QVGA))
- return -EINVAL;
-
- mutex_lock(&ar->lock);
- ar->width = w->width;
- ar->height = w->height;
- if (ar->width == AR_WIDTH_VGA) {
- ar->size = AR_SIZE_VGA;
- ar->frame_bytes = AR_FRAME_BYTES_VGA;
- ar->line_bytes = AR_LINE_BYTES_VGA;
- if (vga_interlace)
- ar->mode = AR_MODE_INTERLACE;
- else
- ar->mode = AR_MODE_NORMAL;
- } else {
- ar->size = AR_SIZE_QVGA;
- ar->frame_bytes = AR_FRAME_BYTES_QVGA;
- ar->line_bytes = AR_LINE_BYTES_QVGA;
- ar->mode = AR_MODE_INTERLACE;
- }
- mutex_unlock(&ar->lock);
- return 0;
- }
- case VIDIOCGFBUF:
- DEBUG(1, "VIDIOCGFBUF:\n");
- return -EINVAL;
- case VIDIOCSFBUF:
- DEBUG(1, "VIDIOCSFBUF:\n");
- return -EINVAL;
- case VIDIOCKEY:
- DEBUG(1, "VIDIOCKEY:\n");
- return 0;
- case VIDIOCGFREQ:
- DEBUG(1, "VIDIOCGFREQ:\n");
- return -EINVAL;
- case VIDIOCSFREQ:
- DEBUG(1, "VIDIOCSFREQ:\n");
- return -EINVAL;
- case VIDIOCGAUDIO:
- DEBUG(1, "VIDIOCGAUDIO:\n");
- return -EINVAL;
- case VIDIOCSAUDIO:
- DEBUG(1, "VIDIOCSAUDIO:\n");
- return -EINVAL;
- case VIDIOCSYNC:
- DEBUG(1, "VIDIOCSYNC:\n");
- return -EINVAL;
- case VIDIOCMCAPTURE:
- DEBUG(1, "VIDIOCMCAPTURE:\n");
- return -EINVAL;
- case VIDIOCGMBUF:
- DEBUG(1, "VIDIOCGMBUF:\n");
- return -EINVAL;
- case VIDIOCGUNIT:
- DEBUG(1, "VIDIOCGUNIT:\n");
- return -EINVAL;
- case VIDIOCGCAPTURE:
- DEBUG(1, "VIDIOCGCAPTURE:\n");
- return -EINVAL;
- case VIDIOCSCAPTURE:
- DEBUG(1, "VIDIOCSCAPTURE:\n");
- return -EINVAL;
- case VIDIOCSPLAYMODE:
- DEBUG(1, "VIDIOCSPLAYMODE:\n");
- return -EINVAL;
- case VIDIOCSWRITEMODE:
- DEBUG(1, "VIDIOCSWRITEMODE:\n");
- return -EINVAL;
- case VIDIOCGPLAYINFO:
- DEBUG(1, "VIDIOCGPLAYINFO:\n");
- return -EINVAL;
- case VIDIOCSMICROCODE:
- DEBUG(1, "VIDIOCSMICROCODE:\n");
- return -EINVAL;
- case VIDIOCGVBIFMT:
- DEBUG(1, "VIDIOCGVBIFMT:\n");
- return -EINVAL;
- case VIDIOCSVBIFMT:
- DEBUG(1, "VIDIOCSVBIFMT:\n");
- return -EINVAL;
- default:
- DEBUG(1, "Unknown ioctl(0x%08x)\n", cmd);
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int ar_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- return video_usercopy(inode, file, cmd, arg, ar_do_ioctl);
-}
-
-#if USE_INT
-/*
- * Interrupt handler
- */
-static void ar_interrupt(int irq, void *dev)
-{
- struct ar_device *ar = dev;
- unsigned int line_count;
- unsigned int line_number;
- unsigned int arvcr1;
-
- line_count = ar_inl(ARVHCOUNT); /* line number */
- if (ar->mode == AR_MODE_INTERLACE && ar->size == AR_SIZE_VGA) {
- /* operations for interlace mode */
- if ( line_count < (AR_HEIGHT_VGA/2) ) /* even line */
- line_number = (line_count << 1);
- else /* odd line */
- line_number =
- (((line_count - (AR_HEIGHT_VGA/2)) << 1) + 1);
- } else {
- line_number = line_count;
- }
-
- if (line_number == 0) {
- /*
- * It is an interrupt for line 0.
- * we have to start capture.
- */
- disable_dma();
-#if 0
- ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL); /* needless? */
-#endif
- memcpy(ar->frame[0], ar->line_buff, ar->line_bytes);
-#if 0
- ar_outl(0xa1861300, M32R_DMA0CR0_PORTL);
-#endif
- enable_dma();
- ar->start_capture = 1; /* during capture */
- return;
- }
-
- if (ar->start_capture == 1 && line_number <= (ar->height - 1)) {
- disable_dma();
- memcpy(ar->frame[line_number], ar->line_buff, ar->line_bytes);
-
- /*
- * if captured all line of a frame, disable AR interrupt
- * and wake a process up.
- */
- if (line_number == (ar->height - 1)) { /* end of line */
-
- ar->start_capture = 0;
-
- /* disable AR interrupt request */
- arvcr1 = ar_inl(ARVCR1);
- arvcr1 &= ~ARVCR1_HIEN; /* clear int. flag */
- ar_outl(arvcr1, ARVCR1); /* disable */
- wake_up_interruptible(&ar->wait);
- } else {
-#if 0
- ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL);
- ar_outl(0xa1861300, M32R_DMA0CR0_PORTL);
-#endif
- enable_dma();
- }
- }
-}
-#endif
-
-/*
- * ar_initialize()
- * ar_initialize() is called by video_register_device() and
- * initializes AR LSI and peripherals.
- *
- * -1 is returned in all failures.
- * 0 is returned in success.
- *
- */
-static int ar_initialize(struct video_device *dev)
-{
- struct ar_device *ar = dev->priv;
- unsigned long cr = 0;
- int i,found=0;
-
- DEBUG(1, "ar_initialize:\n");
-
- /*
- * initialize AR LSI
- */
- ar_outl(0, ARVCR0); /* assert reset of AR LSI */
- for (i = 0; i < 0x18; i++) /* wait for over 10 cycles @ 27MHz */
- cpu_relax();
- ar_outl(ARVCR0_RST, ARVCR0); /* negate reset of AR LSI (enable) */
- for (i = 0; i < 0x40d; i++) /* wait for over 420 cycles @ 27MHz */
- cpu_relax();
-
- /* AR uses INT3 of CPU as interrupt pin. */
- ar_outl(ARINTSEL_INT3, ARINTSEL);
-
- if (ar->size == AR_SIZE_QVGA)
- cr |= ARVCR1_QVGA;
- if (ar->mode == AR_MODE_NORMAL)
- cr |= ARVCR1_NORMAL;
- ar_outl(cr, ARVCR1);
-
- /*
- * Initialize IIC so that CPU can communicate with AR LSI,
- * and send boot commands to AR LSI.
- */
- init_iic();
-
- for (i = 0; i < 0x100000; i++) { /* > 0xa1d10, 56ms */
- if ((ar_inl(ARVCR0) & ARVCR0_VDS)) { /* VSYNC */
- found = 1;
- break;
- }
- }
-
- if (found == 0)
- return -ENODEV;
-
- printk("arv: Initializing ");
-
- iic(2,0x78,0x11,0x01,0x00); /* start */
- iic(3,0x78,0x12,0x00,0x06);
- iic(3,0x78,0x12,0x12,0x30);
- iic(3,0x78,0x12,0x15,0x58);
- iic(3,0x78,0x12,0x17,0x30);
- printk(".");
- iic(3,0x78,0x12,0x1a,0x97);
- iic(3,0x78,0x12,0x1b,0xff);
- iic(3,0x78,0x12,0x1c,0xff);
- iic(3,0x78,0x12,0x26,0x10);
- iic(3,0x78,0x12,0x27,0x00);
- printk(".");
- iic(2,0x78,0x34,0x02,0x00);
- iic(2,0x78,0x7a,0x10,0x00);
- iic(2,0x78,0x80,0x39,0x00);
- iic(2,0x78,0x81,0xe6,0x00);
- iic(2,0x78,0x8d,0x00,0x00);
- printk(".");
- iic(2,0x78,0x8e,0x0c,0x00);
- iic(2,0x78,0x8f,0x00,0x00);
-#if 0
- iic(2,0x78,0x90,0x00,0x00); /* AWB on=1 off=0 */
-#endif
- iic(2,0x78,0x93,0x01,0x00);
- iic(2,0x78,0x94,0xcd,0x00);
- iic(2,0x78,0x95,0x00,0x00);
- printk(".");
- iic(2,0x78,0x96,0xa0,0x00);
- iic(2,0x78,0x97,0x00,0x00);
- iic(2,0x78,0x98,0x60,0x00);
- iic(2,0x78,0x99,0x01,0x00);
- iic(2,0x78,0x9a,0x19,0x00);
- printk(".");
- iic(2,0x78,0x9b,0x02,0x00);
- iic(2,0x78,0x9c,0xe8,0x00);
- iic(2,0x78,0x9d,0x02,0x00);
- iic(2,0x78,0x9e,0x2e,0x00);
- iic(2,0x78,0xb8,0x78,0x00);
- iic(2,0x78,0xba,0x05,0x00);
-#if 0
- iic(2,0x78,0x83,0x8c,0x00); /* brightness */
-#endif
- printk(".");
-
- /* color correction */
- iic(3,0x78,0x49,0x00,0x95); /* a */
- iic(3,0x78,0x49,0x01,0x96); /* b */
- iic(3,0x78,0x49,0x03,0x85); /* c */
- iic(3,0x78,0x49,0x04,0x97); /* d */
- iic(3,0x78,0x49,0x02,0x7e); /* e(Lo) */
- iic(3,0x78,0x49,0x05,0xa4); /* f(Lo) */
- iic(3,0x78,0x49,0x06,0x04); /* e(Hi) */
- iic(3,0x78,0x49,0x07,0x04); /* e(Hi) */
- iic(2,0x78,0x48,0x01,0x00); /* on=1 off=0 */
-
- printk(".");
- iic(2,0x78,0x11,0x00,0x00); /* end */
- printk(" done\n");
- return 0;
-}
-
-
-void ar_release(struct video_device *vfd)
-{
- struct ar_device *ar = vfd->priv;
- mutex_lock(&ar->lock);
- video_device_release(vfd);
-}
-
-/****************************************************************************
- *
- * Video4Linux Module functions
- *
- ****************************************************************************/
-static const struct file_operations ar_fops = {
- .owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .read = ar_read,
- .ioctl = ar_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = v4l_compat_ioctl32,
-#endif
- .llseek = no_llseek,
-};
-
-static struct video_device ar_template = {
- .name = "Colour AR VGA",
- .type = VID_TYPE_CAPTURE,
- .fops = &ar_fops,
- .release = ar_release,
- .minor = -1,
-};
-
-#define ALIGN4(x) ((((int)(x)) & 0x3) == 0)
-static struct ar_device ardev;
-
-static int __init ar_init(void)
-{
- struct ar_device *ar;
- int ret;
- int i;
-
- DEBUG(1, "ar_init:\n");
- ret = -EIO;
- printk(KERN_INFO "arv: Colour AR VGA driver %s\n", VERSION);
-
- ar = &ardev;
- memset(ar, 0, sizeof(struct ar_device));
-
-#if USE_INT
- /* allocate a DMA buffer for 1 line. */
- ar->line_buff = kmalloc(MAX_AR_LINE_BYTES, GFP_KERNEL | GFP_DMA);
- if (ar->line_buff == NULL || ! ALIGN4(ar->line_buff)) {
- printk("arv: buffer allocation failed for DMA.\n");
- ret = -ENOMEM;
- goto out_end;
- }
-#endif
- /* allocate buffers for a frame */
- for (i = 0; i < MAX_AR_HEIGHT; i++) {
- ar->frame[i] = kmalloc(MAX_AR_LINE_BYTES, GFP_KERNEL);
- if (ar->frame[i] == NULL || ! ALIGN4(ar->frame[i])) {
- printk("arv: buffer allocation failed for frame.\n");
- ret = -ENOMEM;
- goto out_line_buff;
- }
- }
-
- ar->vdev = video_device_alloc();
- if (!ar->vdev) {
- printk(KERN_ERR "arv: video_device_alloc() failed\n");
- return -ENOMEM;
- }
- memcpy(ar->vdev, &ar_template, sizeof(ar_template));
- ar->vdev->priv = ar;
-
- if (vga) {
- ar->width = AR_WIDTH_VGA;
- ar->height = AR_HEIGHT_VGA;
- ar->size = AR_SIZE_VGA;
- ar->frame_bytes = AR_FRAME_BYTES_VGA;
- ar->line_bytes = AR_LINE_BYTES_VGA;
- if (vga_interlace)
- ar->mode = AR_MODE_INTERLACE;
- else
- ar->mode = AR_MODE_NORMAL;
- } else {
- ar->width = AR_WIDTH_QVGA;
- ar->height = AR_HEIGHT_QVGA;
- ar->size = AR_SIZE_QVGA;
- ar->frame_bytes = AR_FRAME_BYTES_QVGA;
- ar->line_bytes = AR_LINE_BYTES_QVGA;
- ar->mode = AR_MODE_INTERLACE;
- }
- mutex_init(&ar->lock);
- init_waitqueue_head(&ar->wait);
-
-#if USE_INT
- if (request_irq(M32R_IRQ_INT3, ar_interrupt, 0, "arv", ar)) {
- printk("arv: request_irq(%d) failed.\n", M32R_IRQ_INT3);
- ret = -EIO;
- goto out_irq;
- }
-#endif
-
- if (ar_initialize(ar->vdev) != 0) {
- printk("arv: M64278 not found.\n");
- ret = -ENODEV;
- goto out_dev;
- }
-
- /*
- * ok, we can initialize h/w according to parameters,
- * so register video device as a frame grabber type.
- * device is named "video[0-64]".
- * video_register_device() initializes h/w using ar_initialize().
- */
- if (video_register_device(ar->vdev, VFL_TYPE_GRABBER, video_nr) != 0) {
- /* return -1, -ENFILE(full) or others */
- printk("arv: register video (Colour AR) failed.\n");
- ret = -ENODEV;
- goto out_dev;
- }
-
- printk("video%d: Found M64278 VGA (IRQ %d, Freq %dMHz).\n",
- ar->vdev->minor, M32R_IRQ_INT3, freq);
-
- return 0;
-
-out_dev:
-#if USE_INT
- free_irq(M32R_IRQ_INT3, ar);
-
-out_irq:
-#endif
- for (i = 0; i < MAX_AR_HEIGHT; i++)
- kfree(ar->frame[i]);
-
-out_line_buff:
-#if USE_INT
- kfree(ar->line_buff);
-
-out_end:
-#endif
- return ret;
-}
-
-
-static int __init ar_init_module(void)
-{
- freq = (boot_cpu_data.bus_clock / 1000000);
- printk("arv: Bus clock %d\n", freq);
- if (freq != 50 && freq != 75)
- freq = DEFAULT_FREQ;
- return ar_init();
-}
-
-static void __exit ar_cleanup_module(void)
-{
- struct ar_device *ar;
- int i;
-
- ar = &ardev;
- video_unregister_device(ar->vdev);
-#if USE_INT
- free_irq(M32R_IRQ_INT3, ar);
-#endif
- for (i = 0; i < MAX_AR_HEIGHT; i++)
- kfree(ar->frame[i]);
-#if USE_INT
- kfree(ar->line_buff);
-#endif
-}
-
-module_init(ar_init_module);
-module_exit(ar_cleanup_module);
-
-MODULE_AUTHOR("Takeo Takahashi <takahashi.takeo@renesas.com>");
-MODULE_DESCRIPTION("Colour AR M64278(VGA) for Video4Linux");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-09 19:33:54 +0000