diff options
Diffstat (limited to 'drivers/media/video/arv.c')
| -rw-r--r-- | drivers/media/video/arv.c | 885 |
1 files changed, 0 insertions, 885 deletions
diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c deleted file mode 100644 index e346d32d..0000000 --- a/drivers/media/video/arv.c +++ /dev/null @@ -1,885 +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/videodev2.h> -#include <media/v4l2-common.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-fh.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(KERN_INFO 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 "0.0.5" - -#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 { - struct v4l2_device v4l2_dev; - 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 struct ar ardev; - -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 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 void wait_acknowledge(void) -{ - int i; - - for (i = 0; i < 1000; i++) - cpu_relax(); - while (ar_inl(PLDI2CSTS) & PLDI2CSTS_NOACK) - cpu_relax(); -} - -/******************************************************************* - * I2C functions - *******************************************************************/ -static 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(); -} - - -static 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 void wait_for_vertical_sync(struct ar *ar, 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) - v4l2_err(&ar->v4l2_dev, "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 ar *ar = video_drvdata(file); - 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) */ - - /* - * Okay, kick 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(KERN_ERR "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(ar, 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(ar, 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)) { - v4l2_err(&ar->v4l2_dev, "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_querycap(struct file *file, void *priv, - struct v4l2_capability *vcap) -{ - struct ar *ar = video_drvdata(file); - - strlcpy(vcap->driver, ar->vdev.name, sizeof(vcap->driver)); - strlcpy(vcap->card, "Colour AR VGA", sizeof(vcap->card)); - strlcpy(vcap->bus_info, "Platform", sizeof(vcap->bus_info)); - vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; - vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; - return 0; -} - -static int ar_enum_input(struct file *file, void *fh, struct v4l2_input *vin) -{ - if (vin->index > 0) - return -EINVAL; - strlcpy(vin->name, "Camera", sizeof(vin->name)); - vin->type = V4L2_INPUT_TYPE_CAMERA; - vin->audioset = 0; - vin->tuner = 0; - vin->std = V4L2_STD_ALL; - vin->status = 0; - return 0; -} - -static int ar_g_input(struct file *file, void *fh, unsigned int *inp) -{ - *inp = 0; - return 0; -} - -static int ar_s_input(struct file *file, void *fh, unsigned int inp) -{ - return inp ? -EINVAL : 0; -} - -static int ar_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) -{ - struct ar *ar = video_drvdata(file); - struct v4l2_pix_format *pix = &fmt->fmt.pix; - - pix->width = ar->width; - pix->height = ar->height; - pix->pixelformat = V4L2_PIX_FMT_YUV422P; - pix->field = (ar->mode == AR_MODE_NORMAL) ? V4L2_FIELD_NONE : V4L2_FIELD_INTERLACED; - pix->bytesperline = ar->width; - pix->sizeimage = 2 * ar->width * ar->height; - /* Just a guess */ - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - return 0; -} - -static int ar_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) -{ - struct ar *ar = video_drvdata(file); - struct v4l2_pix_format *pix = &fmt->fmt.pix; - - if (pix->height <= AR_HEIGHT_QVGA || pix->width <= AR_WIDTH_QVGA) { - pix->height = AR_HEIGHT_QVGA; - pix->width = AR_WIDTH_QVGA; - pix->field = V4L2_FIELD_INTERLACED; - } else { - pix->height = AR_HEIGHT_VGA; - pix->width = AR_WIDTH_VGA; - pix->field = vga_interlace ? V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE; - } - pix->pixelformat = V4L2_PIX_FMT_YUV422P; - pix->bytesperline = ar->width; - pix->sizeimage = 2 * ar->width * ar->height; - /* Just a guess */ - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - return 0; -} - -static int ar_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) -{ - struct ar *ar = video_drvdata(file); - struct v4l2_pix_format *pix = &fmt->fmt.pix; - int ret = ar_try_fmt_vid_cap(file, fh, fmt); - - if (ret) - return ret; - mutex_lock(&ar->lock); - ar->width = pix->width; - ar->height = pix->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; - } - /* Ok we figured out what to use from our wide choice */ - mutex_unlock(&ar->lock); - return 0; -} - -static int ar_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) -{ - static struct v4l2_fmtdesc formats[] = { - { 0, 0, 0, - "YUV 4:2:2 Planar", V4L2_PIX_FMT_YUV422P, - { 0, 0, 0, 0 } - }, - }; - enum v4l2_buf_type type = fmt->type; - - if (fmt->index > 0) - return -EINVAL; - - *fmt = formats[fmt->index]; - fmt->type = type; - return 0; -} - -#if USE_INT -/* - * Interrupt handler - */ -static void ar_interrupt(int irq, void *dev) -{ - struct ar *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 ar *ar) -{ - 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; - - v4l2_info(&ar->v4l2_dev, "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(KERN_CONT "."); - 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(KERN_CONT "."); - 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(KERN_CONT "."); - 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(KERN_CONT "."); - 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(KERN_CONT "."); - 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(KERN_CONT "."); - - /* 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(KERN_CONT "."); - iic(2, 0x78, 0x11, 0x00, 0x00); /* end */ - printk(KERN_CONT " done\n"); - return 0; -} - - -/**************************************************************************** - * - * Video4Linux Module functions - * - ****************************************************************************/ - -static const struct v4l2_file_operations ar_fops = { - .owner = THIS_MODULE, - .open = v4l2_fh_open, - .release = v4l2_fh_release, - .read = ar_read, - .unlocked_ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops ar_ioctl_ops = { - .vidioc_querycap = ar_querycap, - .vidioc_g_input = ar_g_input, - .vidioc_s_input = ar_s_input, - .vidioc_enum_input = ar_enum_input, - .vidioc_enum_fmt_vid_cap = ar_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = ar_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = ar_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = ar_try_fmt_vid_cap, -}; - -#define ALIGN4(x) ((((int)(x)) & 0x3) == 0) - -static int __init ar_init(void) -{ - struct ar *ar; - struct v4l2_device *v4l2_dev; - int ret; - int i; - - ar = &ardev; - v4l2_dev = &ar->v4l2_dev; - strlcpy(v4l2_dev->name, "arv", sizeof(v4l2_dev->name)); - v4l2_info(v4l2_dev, "Colour AR VGA driver %s\n", VERSION); - - ret = v4l2_device_register(NULL, v4l2_dev); - if (ret < 0) { - v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); - return ret; - } - ret = -EIO; - -#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)) { - v4l2_err(v4l2_dev, "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])) { - v4l2_err(v4l2_dev, "buffer allocation failed for frame.\n"); - ret = -ENOMEM; - goto out_line_buff; - } - } - - strlcpy(ar->vdev.name, "Colour AR VGA", sizeof(ar->vdev.name)); - ar->vdev.v4l2_dev = v4l2_dev; - ar->vdev.fops = &ar_fops; - ar->vdev.ioctl_ops = &ar_ioctl_ops; - ar->vdev.release = video_device_release_empty; - set_bit(V4L2_FL_USE_FH_PRIO, &ar->vdev.flags); - video_set_drvdata(&ar->vdev, 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)) { - v4l2_err("request_irq(%d) failed.\n", M32R_IRQ_INT3); - ret = -EIO; - goto out_irq; - } -#endif - - if (ar_initialize(ar) != 0) { - v4l2_err(v4l2_dev, "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 */ - v4l2_err(v4l2_dev, "register video (Colour AR) failed.\n"); - ret = -ENODEV; - goto out_dev; - } - - v4l2_info(v4l2_dev, "%s: Found M64278 VGA (IRQ %d, Freq %dMHz).\n", - video_device_node_name(&ar->vdev), 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 - v4l2_device_unregister(&ar->v4l2_dev); - return ret; -} - - -static int __init ar_init_module(void) -{ - freq = (boot_cpu_data.bus_clock / 1000000); - printk(KERN_INFO "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 *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 - v4l2_device_unregister(&ar->v4l2_dev); -} - -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"); -MODULE_VERSION(VERSION); |
