diff options
Diffstat (limited to 'drivers/staging/media/zoran/zoran_card.c')
| -rw-r--r-- | drivers/staging/media/zoran/zoran_card.c | 1333 |
1 files changed, 1333 insertions, 0 deletions
diff --git a/drivers/staging/media/zoran/zoran_card.c b/drivers/staging/media/zoran/zoran_card.c new file mode 100644 index 000000000000..dfc60e2e9dd7 --- /dev/null +++ b/drivers/staging/media/zoran/zoran_card.c @@ -0,0 +1,1333 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Zoran zr36057/zr36067 PCI controller driver, for the + * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux + * Media Labs LML33/LML33R10. + * + * This part handles card-specific data and detection + * + * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> + */ + +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include <linux/i2c.h> +#include <linux/i2c-algo-bit.h> +#include <linux/videodev2.h> +#include <linux/spinlock.h> + +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <media/v4l2-common.h> +#include <media/i2c/bt819.h> + +#include "videocodec.h" +#include "zoran.h" +#include "zoran_card.h" +#include "zoran_device.h" + +extern const struct zoran_format zoran_formats[]; + +static int card[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 }; +module_param_array(card, int, NULL, 0444); +MODULE_PARM_DESC(card, "Card type"); + +/* + * The video mem address of the video card. The driver has a little database for some videocards + * to determine it from there. If your video card is not in there you have either to give it to + * the driver as a parameter or set in in a VIDIOCSFBUF ioctl + */ + +static unsigned long vidmem; /* default = 0 - Video memory base address */ +module_param_hw(vidmem, ulong, iomem, 0444); +MODULE_PARM_DESC(vidmem, "Default video memory base address"); + +/* Default input and video norm at startup of the driver. */ + +static unsigned int default_input; /* default 0 = Composite, 1 = S-Video */ +module_param(default_input, uint, 0444); +MODULE_PARM_DESC(default_input, + "Default input (0=Composite, 1=S-Video, 2=Internal)"); + +static int default_mux = 1; /* 6 Eyes input selection */ +module_param(default_mux, int, 0644); +MODULE_PARM_DESC(default_mux, + "Default 6 Eyes mux setting (Input selection)"); + +static int default_norm; /* default 0 = PAL, 1 = NTSC 2 = SECAM */ +module_param(default_norm, int, 0444); +MODULE_PARM_DESC(default_norm, "Default norm (0=PAL, 1=NTSC, 2=SECAM)"); + +/* /dev/videoN, -1 for autodetect */ +static int video_nr[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 }; +module_param_array(video_nr, int, NULL, 0444); +MODULE_PARM_DESC(video_nr, "Video device number (-1=Auto)"); + +int v4l_nbufs = 4; +int v4l_bufsize = 864; /* Everybody should be able to work with this setting */ +module_param(v4l_nbufs, int, 0644); +MODULE_PARM_DESC(v4l_nbufs, "Maximum number of V4L buffers to use"); +module_param(v4l_bufsize, int, 0644); +MODULE_PARM_DESC(v4l_bufsize, "Maximum size per V4L buffer (in kB)"); + +int jpg_nbufs = 32; +int jpg_bufsize = 512; /* max size for 100% quality full-PAL frame */ +module_param(jpg_nbufs, int, 0644); +MODULE_PARM_DESC(jpg_nbufs, "Maximum number of JPG buffers to use"); +module_param(jpg_bufsize, int, 0644); +MODULE_PARM_DESC(jpg_bufsize, "Maximum size per JPG buffer (in kB)"); + +/* 1=Pass through TV signal when device is not used */ +/* 0=Show color bar when device is not used (LML33: only if lml33dpath=1) */ +int pass_through; +module_param(pass_through, int, 0644); +MODULE_PARM_DESC(pass_through, + "Pass TV signal through to TV-out when idling"); + +int zr36067_debug = 1; +module_param_named(debug, zr36067_debug, int, 0644); +MODULE_PARM_DESC(debug, "Debug level (0-5)"); + +#define ZORAN_VERSION "0.10.1" + +MODULE_DESCRIPTION("Zoran-36057/36067 JPEG codec driver"); +MODULE_AUTHOR("Serguei Miridonov"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(ZORAN_VERSION); + +#define ZR_DEVICE(subven, subdev, data) { \ + .vendor = PCI_VENDOR_ID_ZORAN, .device = PCI_DEVICE_ID_ZORAN_36057, \ + .subvendor = (subven), .subdevice = (subdev), .driver_data = (data) } + +static const struct pci_device_id zr36067_pci_tbl[] = { + ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC10PLUS, DC10_PLUS), + ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC30PLUS, DC30_PLUS), + ZR_DEVICE(PCI_VENDOR_ID_ELECTRONICDESIGNGMBH, PCI_DEVICE_ID_LML_33R10, LML33R10), + ZR_DEVICE(PCI_VENDOR_ID_IOMEGA, PCI_DEVICE_ID_IOMEGA_BUZ, BUZ), + ZR_DEVICE(PCI_ANY_ID, PCI_ANY_ID, NUM_CARDS), + {0} +}; +MODULE_DEVICE_TABLE(pci, zr36067_pci_tbl); + +static unsigned int zoran_num; /* number of cards found */ + +/* videocodec bus functions ZR36060 */ +static u32 zr36060_read(struct videocodec *codec, u16 reg) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + __u32 data; + + if (post_office_wait(zr) || post_office_write(zr, 0, 1, reg >> 8) || + post_office_write(zr, 0, 2, reg & 0xff)) + return -1; + + data = post_office_read(zr, 0, 3) & 0xff; + return data; +} + +static void zr36060_write(struct videocodec *codec, u16 reg, u32 val) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + + if (post_office_wait(zr) || post_office_write(zr, 0, 1, reg >> 8) || + post_office_write(zr, 0, 2, reg & 0xff)) + return; + + post_office_write(zr, 0, 3, val & 0xff); +} + +/* videocodec bus functions ZR36050 */ +static u32 zr36050_read(struct videocodec *codec, u16 reg) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + __u32 data; + + if (post_office_wait(zr) || post_office_write(zr, 1, 0, reg >> 2)) // reg. HIGHBYTES + return -1; + + data = post_office_read(zr, 0, reg & 0x03) & 0xff; // reg. LOWBYTES + read + return data; +} + +static void zr36050_write(struct videocodec *codec, u16 reg, u32 val) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + + if (post_office_wait(zr) || post_office_write(zr, 1, 0, reg >> 2)) // reg. HIGHBYTES + return; + + post_office_write(zr, 0, reg & 0x03, val & 0xff); // reg. LOWBYTES + wr. data +} + +/* videocodec bus functions ZR36016 */ +static u32 zr36016_read(struct videocodec *codec, u16 reg) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + __u32 data; + + if (post_office_wait(zr)) + return -1; + + data = post_office_read(zr, 2, reg & 0x03) & 0xff; // read + return data; +} + +/* hack for in zoran_device.c */ +void zr36016_write(struct videocodec *codec, u16 reg, u32 val) +{ + struct zoran *zr = (struct zoran *)codec->master_data->data; + + if (post_office_wait(zr)) + return; + + post_office_write(zr, 2, reg & 0x03, val & 0x0ff); // wr. data +} + +/* + * Board specific information + */ + +static void dc10_init(struct zoran *zr) +{ + pci_dbg(zr->pci_dev, "%s\n", __func__); + + /* Pixel clock selection */ + GPIO(zr, 4, 0); + GPIO(zr, 5, 1); + /* Enable the video bus sync signals */ + GPIO(zr, 7, 0); +} + +static void dc10plus_init(struct zoran *zr) +{ + pci_dbg(zr->pci_dev, "%s\n", __func__); +} + +static void buz_init(struct zoran *zr) +{ + pci_dbg(zr->pci_dev, "%s\n", __func__); + + /* some stuff from Iomega */ + pci_write_config_dword(zr->pci_dev, 0xfc, 0x90680f15); + pci_write_config_dword(zr->pci_dev, 0x0c, 0x00012020); + pci_write_config_dword(zr->pci_dev, 0xe8, 0xc0200000); +} + +static void lml33_init(struct zoran *zr) +{ + pci_dbg(zr->pci_dev, "%s\n", __func__); + + GPIO(zr, 2, 1); // Set Composite input/output +} + +static void avs6eyes_init(struct zoran *zr) +{ + // AverMedia 6-Eyes original driver by Christer Weinigel + + // Lifted straight from Christer's old driver and + // modified slightly by Martin Samuelsson. + + int mux = default_mux; /* 1 = BT866, 7 = VID1 */ + + GPIO(zr, 4, 1); /* Bt866 SLEEP on */ + udelay(2); + + GPIO(zr, 0, 1); /* ZR36060 /RESET on */ + GPIO(zr, 1, 0); /* ZR36060 /SLEEP on */ + GPIO(zr, 2, mux & 1); /* MUX S0 */ + GPIO(zr, 3, 0); /* /FRAME on */ + GPIO(zr, 4, 0); /* Bt866 SLEEP off */ + GPIO(zr, 5, mux & 2); /* MUX S1 */ + GPIO(zr, 6, 0); /* ? */ + GPIO(zr, 7, mux & 4); /* MUX S2 */ +} + +static const char *codecid_to_modulename(u16 codecid) +{ + const char *name = NULL; + + switch (codecid) { + case CODEC_TYPE_ZR36060: + name = "zr36060"; + break; + case CODEC_TYPE_ZR36050: + name = "zr36050"; + break; + case CODEC_TYPE_ZR36016: + name = "zr36016"; + break; + } + + return name; +} + +// struct tvnorm { +// u16 wt, wa, h_start, h_sync_start, ht, ha, v_start; +// }; + +static const struct tvnorm f50sqpixel = { 944, 768, 83, 880, 625, 576, 16 }; +static const struct tvnorm f60sqpixel = { 780, 640, 51, 716, 525, 480, 12 }; +static const struct tvnorm f50ccir601 = { 864, 720, 75, 804, 625, 576, 18 }; +static const struct tvnorm f60ccir601 = { 858, 720, 57, 788, 525, 480, 16 }; + +static const struct tvnorm f50ccir601_lml33 = { 864, 720, 75 + 34, 804, 625, 576, 18 }; +static const struct tvnorm f60ccir601_lml33 = { 858, 720, 57 + 34, 788, 525, 480, 16 }; + +/* The DC10 (57/16/50) uses VActive as HSync, so h_start must be 0 */ +static const struct tvnorm f50sqpixel_dc10 = { 944, 768, 0, 880, 625, 576, 0 }; +static const struct tvnorm f60sqpixel_dc10 = { 780, 640, 0, 716, 525, 480, 12 }; + +/* + * FIXME: I cannot swap U and V in saa7114, so i do one pixel left shift in zoran (75 -> 74) + * (Maxim Yevtyushkin <max@linuxmedialabs.com>) + */ +static const struct tvnorm f50ccir601_lm33r10 = { 864, 720, 74 + 54, 804, 625, 576, 18 }; +static const struct tvnorm f60ccir601_lm33r10 = { 858, 720, 56 + 54, 788, 525, 480, 16 }; + +/* + * FIXME: The ks0127 seem incapable of swapping U and V, too, which is why I copy Maxim's left + * shift hack for the 6 Eyes. + * + * Christer's driver used the unshifted norms, though... + * /Sam + */ +static const struct tvnorm f50ccir601_avs6eyes = { 864, 720, 74, 804, 625, 576, 18 }; +static const struct tvnorm f60ccir601_avs6eyes = { 858, 720, 56, 788, 525, 480, 16 }; + +static const unsigned short vpx3220_addrs[] = { 0x43, 0x47, I2C_CLIENT_END }; +static const unsigned short saa7110_addrs[] = { 0x4e, 0x4f, I2C_CLIENT_END }; +static const unsigned short saa7111_addrs[] = { 0x25, 0x24, I2C_CLIENT_END }; +static const unsigned short saa7114_addrs[] = { 0x21, 0x20, I2C_CLIENT_END }; +static const unsigned short adv717x_addrs[] = { 0x6a, 0x6b, 0x2a, 0x2b, I2C_CLIENT_END }; +static const unsigned short ks0127_addrs[] = { 0x6c, 0x6d, I2C_CLIENT_END }; +static const unsigned short saa7185_addrs[] = { 0x44, I2C_CLIENT_END }; +static const unsigned short bt819_addrs[] = { 0x45, I2C_CLIENT_END }; +static const unsigned short bt856_addrs[] = { 0x44, I2C_CLIENT_END }; +static const unsigned short bt866_addrs[] = { 0x44, I2C_CLIENT_END }; + +static struct card_info zoran_cards[NUM_CARDS] = { + { + .type = DC10_OLD, + .name = "DC10(old)", + .i2c_decoder = "vpx3220a", + .addrs_decoder = vpx3220_addrs, + .video_codec = CODEC_TYPE_ZR36050, + .video_vfe = CODEC_TYPE_ZR36016, + + .inputs = 3, + .input = { + { 1, "Composite" }, + { 2, "S-Video" }, + { 0, "Internal/comp" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50sqpixel_dc10, + &f60sqpixel_dc10, + &f50sqpixel_dc10 + }, + .jpeg_int = 0, + .vsync_int = ZR36057_ISR_GIRQ1, + .gpio = { 2, 1, -1, 3, 7, 0, 4, 5 }, + .gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 }, + .gpcs = { -1, 0 }, + .vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gws_not_connected = 0, + .input_mux = 0, + .init = &dc10_init, + }, { + .type = DC10_NEW, + .name = "DC10(new)", + .i2c_decoder = "saa7110", + .addrs_decoder = saa7110_addrs, + .i2c_encoder = "adv7175", + .addrs_encoder = adv717x_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 3, + .input = { + { 0, "Composite" }, + { 7, "S-Video" }, + { 5, "Internal/comp" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50sqpixel, + &f60sqpixel, + &f50sqpixel}, + .jpeg_int = ZR36057_ISR_GIRQ0, + .vsync_int = ZR36057_ISR_GIRQ1, + .gpio = { 3, 0, 6, 1, 2, -1, 4, 5 }, + .gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gpcs = { -1, 1}, + .vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 }, + .gws_not_connected = 0, + .input_mux = 0, + .init = &dc10plus_init, + }, { + .type = DC10_PLUS, + .name = "DC10_PLUS", + .i2c_decoder = "saa7110", + .addrs_decoder = saa7110_addrs, + .i2c_encoder = "adv7175", + .addrs_encoder = adv717x_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 3, + .input = { + { 0, "Composite" }, + { 7, "S-Video" }, + { 5, "Internal/comp" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50sqpixel, + &f60sqpixel, + &f50sqpixel + }, + .jpeg_int = ZR36057_ISR_GIRQ0, + .vsync_int = ZR36057_ISR_GIRQ1, + .gpio = { 3, 0, 6, 1, 2, -1, 4, 5 }, + .gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gpcs = { -1, 1 }, + .vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 }, + .gws_not_connected = 0, + .input_mux = 0, + .init = &dc10plus_init, + }, { + .type = DC30, + .name = "DC30", + .i2c_decoder = "vpx3220a", + .addrs_decoder = vpx3220_addrs, + .i2c_encoder = "adv7175", + .addrs_encoder = adv717x_addrs, + .video_codec = CODEC_TYPE_ZR36050, + .video_vfe = CODEC_TYPE_ZR36016, + + .inputs = 3, + .input = { + { 1, "Composite" }, + { 2, "S-Video" }, + { 0, "Internal/comp" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50sqpixel_dc10, + &f60sqpixel_dc10, + &f50sqpixel_dc10 + }, + .jpeg_int = 0, + .vsync_int = ZR36057_ISR_GIRQ1, + .gpio = { 2, 1, -1, 3, 7, 0, 4, 5 }, + .gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 }, + .gpcs = { -1, 0 }, + .vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gws_not_connected = 0, + .input_mux = 0, + .init = &dc10_init, + }, { + .type = DC30_PLUS, + .name = "DC30_PLUS", + .i2c_decoder = "vpx3220a", + .addrs_decoder = vpx3220_addrs, + .i2c_encoder = "adv7175", + .addrs_encoder = adv717x_addrs, + .video_codec = CODEC_TYPE_ZR36050, + .video_vfe = CODEC_TYPE_ZR36016, + + .inputs = 3, + .input = { + { 1, "Composite" }, + { 2, "S-Video" }, + { 0, "Internal/comp" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50sqpixel_dc10, + &f60sqpixel_dc10, + &f50sqpixel_dc10 + }, + .jpeg_int = 0, + .vsync_int = ZR36057_ISR_GIRQ1, + .gpio = { 2, 1, -1, 3, 7, 0, 4, 5 }, + .gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 }, + .gpcs = { -1, 0 }, + .vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gws_not_connected = 0, + .input_mux = 0, + .init = &dc10_init, + }, { + .type = LML33, + .name = "LML33", + .i2c_decoder = "bt819a", + .addrs_decoder = bt819_addrs, + .i2c_encoder = "bt856", + .addrs_encoder = bt856_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 2, + .input = { + { 0, "Composite" }, + { 7, "S-Video" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL, + .tvn = { + &f50ccir601_lml33, + &f60ccir601_lml33, + NULL + }, + .jpeg_int = ZR36057_ISR_GIRQ1, + .vsync_int = ZR36057_ISR_GIRQ0, + .gpio = { 1, -1, 3, 5, 7, -1, -1, -1 }, + .gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 }, + .gpcs = { 3, 1 }, + .vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 }, + .gws_not_connected = 1, + .input_mux = 0, + .init = &lml33_init, + }, { + .type = LML33R10, + .name = "LML33R10", + .i2c_decoder = "saa7114", + .addrs_decoder = saa7114_addrs, + .i2c_encoder = "adv7170", + .addrs_encoder = adv717x_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 2, + .input = { + { 0, "Composite" }, + { 7, "S-Video" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL, + .tvn = { + &f50ccir601_lm33r10, + &f60ccir601_lm33r10, + NULL + }, + .jpeg_int = ZR36057_ISR_GIRQ1, + .vsync_int = ZR36057_ISR_GIRQ0, + .gpio = { 1, -1, 3, 5, 7, -1, -1, -1 }, + .gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 }, + .gpcs = { 3, 1 }, + .vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 }, + .gws_not_connected = 1, + .input_mux = 0, + .init = &lml33_init, + }, { + .type = BUZ, + .name = "Buz", + .i2c_decoder = "saa7111", + .addrs_decoder = saa7111_addrs, + .i2c_encoder = "saa7185", + .addrs_encoder = saa7185_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 2, + .input = { + { 3, "Composite" }, + { 7, "S-Video" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, + .tvn = { + &f50ccir601, + &f60ccir601, + &f50ccir601 + }, + .jpeg_int = ZR36057_ISR_GIRQ1, + .vsync_int = ZR36057_ISR_GIRQ0, + .gpio = { 1, -1, 3, -1, -1, -1, -1, -1 }, + .gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, + .gpcs = { 3, 1 }, + .vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 }, + .gws_not_connected = 1, + .input_mux = 0, + .init = &buz_init, + }, { + .type = AVS6EYES, + .name = "6-Eyes", +/* AverMedia chose not to brand the 6-Eyes. Thus it can't be autodetected, and requires card=x. */ + .i2c_decoder = "ks0127", + .addrs_decoder = ks0127_addrs, + .i2c_encoder = "bt866", + .addrs_encoder = bt866_addrs, + .video_codec = CODEC_TYPE_ZR36060, + + .inputs = 10, + .input = { + { 0, "Composite 1" }, + { 1, "Composite 2" }, + { 2, "Composite 3" }, + { 4, "Composite 4" }, + { 5, "Composite 5" }, + { 6, "Composite 6" }, + { 8, "S-Video 1" }, + { 9, "S-Video 2" }, + {10, "S-Video 3" }, + {15, "YCbCr" } + }, + .norms = V4L2_STD_NTSC | V4L2_STD_PAL, + .tvn = { + &f50ccir601_avs6eyes, + &f60ccir601_avs6eyes, + NULL + }, + .jpeg_int = ZR36057_ISR_GIRQ1, + .vsync_int = ZR36057_ISR_GIRQ0, + .gpio = { 1, 0, 3, -1, -1, -1, -1, -1 },// Validity unknown /Sam + .gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, // Validity unknown /Sam + .gpcs = { 3, 1 }, // Validity unknown /Sam + .vfe_pol = { 1, 0, 0, 0, 0, 1, 0, 0 }, // Validity unknown /Sam + .gws_not_connected = 1, + .input_mux = 1, + .init = &avs6eyes_init, + } + +}; + +/* + * I2C functions + */ +/* software I2C functions */ +static int zoran_i2c_getsda(void *data) +{ + struct zoran *zr = (struct zoran *)data; + + return (btread(ZR36057_I2CBR) >> 1) & 1; +} + +static int zoran_i2c_getscl(void *data) +{ + struct zoran *zr = (struct zoran *)data; + + return btread(ZR36057_I2CBR) & 1; +} + +static void zoran_i2c_setsda(void *data, int state) +{ + struct zoran *zr = (struct zoran *)data; + + if (state) + zr->i2cbr |= 2; + else + zr->i2cbr &= ~2; + btwrite(zr->i2cbr, ZR36057_I2CBR); +} + +static void zoran_i2c_setscl(void *data, int state) +{ + struct zoran *zr = (struct zoran *)data; + + if (state) + zr->i2cbr |= 1; + else + zr->i2cbr &= ~1; + btwrite(zr->i2cbr, ZR36057_I2CBR); +} + +static const struct i2c_algo_bit_data zoran_i2c_bit_data_template = { + .setsda = zoran_i2c_setsda, + .setscl = zoran_i2c_setscl, + .getsda = zoran_i2c_getsda, + .getscl = zoran_i2c_getscl, + .udelay = 10, + .timeout = 100, +}; + +static int zoran_register_i2c(struct zoran *zr) +{ + zr->i2c_algo = zoran_i2c_bit_data_template; + zr->i2c_algo.data = zr; + strscpy(zr->i2c_adapter.name, ZR_DEVNAME(zr), + sizeof(zr->i2c_adapter.name)); + i2c_set_adapdata(&zr->i2c_adapter, &zr->v4l2_dev); + zr->i2c_adapter.algo_data = &zr->i2c_algo; + zr->i2c_adapter.dev.parent = &zr->pci_dev->dev; + return i2c_bit_add_bus(&zr->i2c_adapter); +} + +static void zoran_unregister_i2c(struct zoran *zr) +{ + i2c_del_adapter(&zr->i2c_adapter); +} + +/* Check a zoran_params struct for correctness, insert default params */ +int zoran_check_jpg_settings(struct zoran *zr, + struct zoran_jpg_settings *settings, int try) +{ + int err = 0, err0 = 0; + + pci_dbg(zr->pci_dev, "%s - dec: %d, Hdcm: %d, Vdcm: %d, Tdcm: %d\n", + __func__, settings->decimation, settings->hor_dcm, + settings->ver_dcm, settings->tmp_dcm); + pci_dbg(zr->pci_dev, "%s - x: %d, y: %d, w: %d, y: %d\n", __func__, + settings->img_x, settings->img_y, + settings->img_width, settings->img_height); + /* Check decimation, set default values for decimation = 1, 2, 4 */ + switch (settings->decimation) { + case 1: + + settings->hor_dcm = 1; + settings->ver_dcm = 1; + settings->tmp_dcm = 1; + settings->field_per_buff = 2; + settings->img_x = 0; + settings->img_y = 0; + settings->img_width = BUZ_MAX_WIDTH; + settings->img_height = BUZ_MAX_HEIGHT / 2; + break; + case 2: + + settings->hor_dcm = 2; + settings->ver_dcm = 1; + settings->tmp_dcm = 2; + settings->field_per_buff = 1; + settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; + settings->img_y = 0; + settings->img_width = + (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; + settings->img_height = BUZ_MAX_HEIGHT / 2; + break; + case 4: + + if (zr->card.type == DC10_NEW) { + pci_dbg(zr->pci_dev, "%s - HDec by 4 is not supported on the DC10\n", __func__); + err0++; + break; + } + + settings->hor_dcm = 4; + settings->ver_dcm = 2; + settings->tmp_dcm = 2; + settings->field_per_buff = 1; + settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; + settings->img_y = 0; + settings->img_width = + (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; + settings->img_height = BUZ_MAX_HEIGHT / 2; + break; + case 0: + + /* We have to check the data the user has set */ + + if (settings->hor_dcm != 1 && settings->hor_dcm != 2 && + (zr->card.type == DC10_NEW || settings->hor_dcm != 4)) { + settings->hor_dcm = clamp(settings->hor_dcm, 1, 2); + err0++; + } + if (settings->ver_dcm != 1 && settings->ver_dcm != 2) { + settings->ver_dcm = clamp(settings->ver_dcm, 1, 2); + err0++; + } + if (settings->tmp_dcm != 1 && settings->tmp_dcm != 2) { + settings->tmp_dcm = clamp(settings->tmp_dcm, 1, 2); + err0++; + } + if (settings->field_per_buff != 1 && + settings->field_per_buff != 2) { + settings->field_per_buff = clamp(settings->field_per_buff, 1, 2); + err0++; + } + if (settings->img_x < 0) { + settings->img_x = 0; + err0++; + } + if (settings->img_y < 0) { + settings->img_y = 0; + err0++; + } + if (settings->img_width < 0 || settings->img_width > BUZ_MAX_WIDTH) { + settings->img_width = clamp(settings->img_width, 0, (int)BUZ_MAX_WIDTH); + err0++; + } + if (settings->img_height < 0 || settings->img_height > BUZ_MAX_HEIGHT / 2) { + settings->img_height = clamp(settings->img_height, 0, BUZ_MAX_HEIGHT / 2); + err0++; + } + if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH) { + settings->img_x = BUZ_MAX_WIDTH - settings->img_width; + err0++; + } + if (settings->img_y + settings->img_height > BUZ_MAX_HEIGHT / 2) { + settings->img_y = BUZ_MAX_HEIGHT / 2 - settings->img_height; + err0++; + } + if (settings->img_width % (16 * settings->hor_dcm) != 0) { + settings->img_width -= settings->img_width % (16 * settings->hor_dcm); + if (settings->img_width == 0) + settings->img_width = 16 * settings->hor_dcm; + err0++; + } + if (settings->img_height % (8 * settings->ver_dcm) != 0) { + settings->img_height -= settings->img_height % (8 * settings->ver_dcm); + if (settings->img_height == 0) + settings->img_height = 8 * settings->ver_dcm; + err0++; + } + + if (!try && err0) { + pci_err(zr->pci_dev, "%s - error in params for decimation = 0\n", __func__); + err++; + } + break; + default: + pci_err(zr->pci_dev, "%s - decimation = %d, must be 0, 1, 2 or 4\n", + __func__, settings->decimation); + err++; + break; + } + + if (settings->jpg_comp.quality > 100) + settings->jpg_comp.quality = 100; + if (settings->jpg_comp.quality < 5) + settings->jpg_comp.quality = 5; + if (settings->jpg_comp.APPn < 0) + settings->jpg_comp.APPn = 0; + if (settings->jpg_comp.APPn > 15) + settings->jpg_comp.APPn = 15; + if (settings->jpg_comp.APP_len < 0) + settings->jpg_comp.APP_len = 0; + if (settings->jpg_comp.APP_len > 60) + settings->jpg_comp.APP_len = 60; + if (settings->jpg_comp.COM_len < 0) + settings->jpg_comp.COM_len = 0; + if (settings->jpg_comp.COM_len > 60) + settings->jpg_comp.COM_len = 60; + if (err) + return -EINVAL; + return 0; +} + +void zoran_open_init_params(struct zoran *zr) +{ + int i; + + zr->v4l_settings.width = 192; + zr->v4l_settings.height = 144; + zr->v4l_settings.format = &zoran_formats[7]; /* YUY2 - YUV-4:2:2 packed */ + zr->v4l_settings.bytesperline = zr->v4l_settings.width * + ((zr->v4l_settings.format->depth + 7) / 8); + + /* Set necessary params and call zoran_check_jpg_settings to set the defaults */ + zr->jpg_settings.decimation = 1; + zr->jpg_settings.jpg_comp.quality = 50; /* default compression factor 8 */ + if (zr->card.type != BUZ) + zr->jpg_settings.odd_even = 1; + else + zr->jpg_settings.odd_even = 0; + zr->jpg_settings.jpg_comp.APPn = 0; + zr->jpg_settings.jpg_comp.APP_len = 0; /* No APPn marker */ + memset(zr->jpg_settings.jpg_comp.APP_data, 0, + sizeof(zr->jpg_settings.jpg_comp.APP_data)); + zr->jpg_settings.jpg_comp.COM_len = 0; /* No COM marker */ + memset(zr->jpg_settings.jpg_comp.COM_data, 0, + sizeof(zr->jpg_settings.jpg_comp.COM_data)); + zr->jpg_settings.jpg_comp.jpeg_markers = + V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT; + i = zoran_check_jpg_settings(zr, &zr->jpg_settings, 0); + if (i) + pci_err(zr->pci_dev, "%s internal error\n", __func__); + + zr->buffer_size = zr->v4l_settings.bytesperline * zr->v4l_settings.height; + + clear_interrupt_counters(zr); +} + +static int zr36057_init(struct zoran *zr) +{ + int j, err; + + pci_info(zr->pci_dev, "initializing card[%d]\n", zr->id); + + /* Avoid nonsense settings from user for default input/norm */ + if (default_norm < 0 || default_norm > 2) + default_norm = 0; + if (default_norm == 0) { + zr->norm = V4L2_STD_PAL; + zr->timing = zr->card.tvn[ZR_NORM_PAL]; + } else if (default_norm == 1) { + zr->norm = V4L2_STD_NTSC; + zr->timing = zr->card.tvn[ZR_NORM_NTSC]; + } else { + zr->norm = V4L2_STD_SECAM; + zr->timing = zr->card.tvn[ZR_NORM_SECAM]; + } + if (!zr->timing) { + pci_warn(zr->pci_dev, "%s - default TV standard not supported by hardware. PAL will be used.\n", __func__); + zr->norm = V4L2_STD_PAL; + zr->timing = zr->card.tvn[ZR_NORM_PAL]; + } + + if (default_input > zr->card.inputs - 1) { + pci_warn(zr->pci_dev, "default_input value %d out of range (0-%d)\n", + default_input, zr->card.inputs - 1); + default_input = 0; + } + zr->input = default_input; + + /* default setup (will be repeated at every open) */ + zoran_open_init_params(zr); + + /* allocate memory *before* doing anything to the hardware in case allocation fails */ + zr->video_dev = video_device_alloc(); + if (!zr->video_dev) { + err = -ENOMEM; + goto exit; + } + zr->stat_com = dma_alloc_coherent(&zr->pci_dev->dev, + BUZ_NUM_STAT_COM * sizeof(u32), + &zr->p_sc, GFP_KERNEL); + if (!zr->stat_com) { + err = -ENOMEM; + goto exit_video; + } + for (j = 0; j < BUZ_NUM_STAT_COM; j++) + zr->stat_com[j] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ + + zr->stat_comb = dma_alloc_coherent(&zr->pci_dev->dev, + BUZ_NUM_STAT_COM * sizeof(u32) * 2, + &zr->p_scb, GFP_KERNEL); + if (!zr->stat_comb) { + err = -ENOMEM; + goto exit_statcom; + } + + /* Now add the template and register the device unit. */ + *zr->video_dev = zoran_template; + zr->video_dev->v4l2_dev = &zr->v4l2_dev; + zr->video_dev->lock = &zr->lock; + zr->video_dev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE; + + strscpy(zr->video_dev->name, ZR_DEVNAME(zr), sizeof(zr->video_dev->name)); + /* + * It's not a mem2mem device, but you can both capture and output from one and the same + * device. This should really be split up into two device nodes, but that's a job for + * another day. + */ + zr->video_dev->vfl_dir = VFL_DIR_M2M; + + zoran_queue_init(zr, &zr->vq); + + err = video_register_device(zr->video_dev, VFL_TYPE_VIDEO, video_nr[zr->id]); + if (err < 0) + goto exit_statcomb; + video_set_drvdata(zr->video_dev, zr); + + zoran_init_hardware(zr); + if (!pass_through) { + decoder_call(zr, video, s_stream, 0); + encoder_call(zr, video, s_routing, 2, 0, 0); + } + + zr->initialized = 1; + return 0; + +exit_statcomb: + dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb); +exit_statcom: + dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc); +exit_video: + kfree(zr->video_dev); +exit: + return err; +} + +static void zoran_remove(struct pci_dev *pdev) +{ + struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev); + struct zoran *zr = to_zoran(v4l2_dev); + + if (!zr->initialized) + goto exit_free; + + zoran_queue_exit(zr); + + /* unregister videocodec bus */ + if (zr->codec) + videocodec_detach(zr->codec); + if (zr->vfe) + videocodec_detach(zr->vfe); + + /* unregister i2c bus */ + zoran_unregister_i2c(zr); + /* disable PCI bus-mastering */ + zoran_set_pci_master(zr, 0); + /* put chip into reset */ + btwrite(0, ZR36057_SPGPPCR); + pci_free_irq(zr->pci_dev, 0, zr); + /* unmap and free memory */ + dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc); + dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb); + pci_release_regions(pdev); + pci_disable_device(zr->pci_dev); + video_unregister_device(zr->video_dev); +exit_free: + v4l2_ctrl_handler_free(&zr->hdl); + v4l2_device_unregister(&zr->v4l2_dev); +} + +void zoran_vdev_release(struct video_device *vdev) +{ + kfree(vdev); +} + +static struct videocodec_master *zoran_setup_videocodec(struct zoran *zr, + int type) +{ + struct videocodec_master *m = NULL; + + m = devm_kmalloc(&zr->pci_dev->dev, sizeof(*m), GFP_KERNEL); + if (!m) + return m; + + /* + * magic and type are unused for master struct. Makes sense only at codec structs. + * In the past, .type were initialized to the old V4L1 .hardware value, + * as VID_HARDWARE_ZR36067 + */ + m->magic = 0L; + m->type = 0; + + m->flags = CODEC_FLAG_ENCODER | CODEC_FLAG_DECODER; + strscpy(m->name, ZR_DEVNAME(zr), sizeof(m->name)); + m->data = zr; + + switch (type) { + case CODEC_TYPE_ZR36060: + m->readreg = zr36060_read; + m->writereg = zr36060_write; + m->flags |= CODEC_FLAG_JPEG | CODEC_FLAG_VFE; + break; + case CODEC_TYPE_ZR36050: + m->readreg = zr36050_read; + m->writereg = zr36050_write; + m->flags |= CODEC_FLAG_JPEG; + break; + case CODEC_TYPE_ZR36016: + m->readreg = zr36016_read; + m->writereg = zr36016_write; + m->flags |= CODEC_FLAG_VFE; + break; + } + + return m; +} + +static void zoran_subdev_notify(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct zoran *zr = to_zoran(sd->v4l2_dev); + + /* + * Bt819 needs to reset its FIFO buffer using #FRST pin and + * LML33 card uses GPIO(7) for that. + */ + if (cmd == BT819_FIFO_RESET_LOW) + GPIO(zr, 7, 0); + else if (cmd == BT819_FIFO_RESET_HIGH) + GPIO(zr, 7, 1); +} + +static int zoran_video_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct zoran *zr = container_of(ctrl->handler, struct zoran, hdl); + + switch (ctrl->id) { + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + zr->jpg_settings.jpg_comp.quality = ctrl->val; + return zoran_check_jpg_settings(zr, &zr->jpg_settings, 0); + default: + return -EINVAL; + } + + return 0; +} + +static const struct v4l2_ctrl_ops zoran_video_ctrl_ops = { + .s_ctrl = zoran_video_set_ctrl, +}; + +/* + * Scan for a Buz card (actually for the PCI controller ZR36057), + * request the irq and map the io memory + */ +static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + unsigned char latency, need_latency; + struct zoran *zr; + int result; + struct videocodec_master *master_vfe = NULL; + struct videocodec_master *master_codec = NULL; + int card_num; + const char *codec_name, *vfe_name; + unsigned int nr; + int err; + + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + return -ENODEV; + vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); + + nr = zoran_num++; + if (nr >= BUZ_MAX) { + pci_err(pdev, "driver limited to %d card(s) maximum\n", BUZ_MAX); + return -ENOENT; + } + + zr = devm_kzalloc(&pdev->dev, sizeof(*zr), GFP_KERNEL); + if (!zr) + return -ENOMEM; + + zr->v4l2_dev.notify = zoran_subdev_notify; + if (v4l2_device_register(&pdev->dev, &zr->v4l2_dev)) + goto zr_free_mem; + zr->pci_dev = pdev; + zr->id = nr; + snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id); + if (v4l2_ctrl_handler_init(&zr->hdl, 10)) + goto zr_unreg; + zr->v4l2_dev.ctrl_handler = &zr->hdl; + v4l2_ctrl_new_std(&zr->hdl, &zoran_video_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, 0, + 100, 1, 50); + spin_lock_init(&zr->spinlock); + mutex_init(&zr->lock); + if (pci_enable_device(pdev)) + goto zr_unreg; + zr->revision = zr->pci_dev->revision; + + pci_info(zr->pci_dev, "Zoran ZR360%c7 (rev %d), irq: %d, memory: 0x%08llx\n", + zr->revision < 2 ? '5' : '6', zr->revision, + zr->pci_dev->irq, (uint64_t)pci_resource_start(zr->pci_dev, 0)); + if (zr->revision >= 2) + pci_info(zr->pci_dev, "Subsystem vendor=0x%04x id=0x%04x\n", + zr->pci_dev->subsystem_vendor, zr->pci_dev->subsystem_device); + + /* Use auto-detected card type? */ + if (card[nr] == -1) { + if (zr->revision < 2) { + pci_err(pdev, "No card type specified, please use the card=X module parameter\n"); + pci_err(pdev, "It is not possible to auto-detect ZR36057 based cards\n"); + goto zr_unreg; + } + + card_num = ent->driver_data; + if (card_num >= NUM_CARDS) { + pci_err(pdev, "Unknown card, try specifying card=X module parameter\n"); + goto zr_unreg; + } + pci_info(zr->pci_dev, "%s() - card %s detected\n", __func__, zoran_cards[card_num].name); + } else { + card_num = card[nr]; + if (card_num >= NUM_CARDS || card_num < 0) { + pci_err(pdev, "User specified card type %d out of range (0 .. %d)\n", + card_num, NUM_CARDS - 1); + goto zr_unreg; + } + } + + /* + * even though we make this a non pointer and thus + * theoretically allow for making changes to this struct + * on a per-individual card basis at runtime, this is + * strongly discouraged. This structure is intended to + * keep general card information, no settings or anything + */ + zr->card = zoran_cards[card_num]; + snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "%s[%u]", + zr->card.name, zr->id); + + err = pci_request_regions(pdev, ZR_DEVNAME(zr)); + if (err) + goto zr_unreg; + + zr->zr36057_mem = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); + if (!zr->zr36057_mem) { + pci_err(pdev, "%s() - ioremap failed\n", __func__); + goto zr_pci_release; + } + + result = pci_request_irq(pdev, 0, zoran_irq, NULL, zr, ZR_DEVNAME(zr)); + if (result < 0) { + if (result == -EINVAL) { + pci_err(pdev, "%s - bad IRQ number or handler\n", __func__); + } else if (result == -EBUSY) { + pci_err(pdev, "%s - IRQ %d busy, change your PnP config in BIOS\n", + __func__, zr->pci_dev->irq); + } else { + pci_err(pdev, "%s - cannot assign IRQ, error code %d\n", __func__, result); + } + goto zr_pci_release; + } + + /* set PCI latency timer */ + pci_read_config_byte(zr->pci_dev, PCI_LATENCY_TIMER, + &latency); + need_latency = zr->revision > 1 ? 32 : 48; + if (latency != need_latency) { + pci_info(zr->pci_dev, "Changing PCI latency from %d to %d\n", latency, need_latency); + pci_write_config_byte(zr->pci_dev, PCI_LATENCY_TIMER, need_latency); + } + + zr36057_restart(zr); + /* i2c */ + pci_info(zr->pci_dev, "Initializing i2c bus...\n"); + + if (zoran_register_i2c(zr) < 0) { + pci_err(pdev, "%s - can't initialize i2c bus\n", __func__); + goto zr_free_irq; + } + + zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter, + zr->card.i2c_decoder, 0, + zr->card.addrs_decoder); + + if (zr->card.i2c_encoder) + zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter, + zr->card.i2c_encoder, 0, + zr->card.addrs_encoder); + + pci_info(zr->pci_dev, "Initializing videocodec bus...\n"); + + if (zr->card.video_codec) { + codec_name = codecid_to_modulename(zr->card.video_codec); + if (codec_name) { + result = request_module(codec_name); + if (result) + pci_err(pdev, "failed to load modules %s: %d\n", codec_name, result); + } + } + if (zr->card.video_vfe) { + vfe_name = codecid_to_modulename(zr->card.video_vfe); + if (vfe_name) { + result = request_module(vfe_name); + if (result < 0) + pci_err(pdev, "failed to load modules %s: %d\n", vfe_name, result); + } + } + + /* reset JPEG codec */ + jpeg_codec_sleep(zr, 1); + jpeg_codec_reset(zr); + /* video bus enabled */ + /* display codec revision */ + if (zr->card.video_codec != 0) { + master_codec = zoran_setup_videocodec(zr, zr->card.video_codec); + if (!master_codec) + goto zr_unreg_i2c; + zr->codec = videocodec_attach(master_codec); + if (!zr->codec) { + pci_err(pdev, "%s - no codec found\n", __func__); + goto zr_unreg_i2c; + } + if (zr->codec->type != zr->card.video_codec) { + pci_err(pdev, "%s - wrong codec\n", __func__); + goto zr_detach_codec; + } + } + if (zr->card.video_vfe != 0) { + master_vfe = zoran_setup_videocodec(zr, zr->card.video_vfe); + if (!master_vfe) + goto zr_detach_codec; + zr->vfe = videocodec_attach(master_vfe); + if (!zr->vfe) { + pci_err(pdev, "%s - no VFE found\n", __func__); + goto zr_detach_codec; + } + if (zr->vfe->type != zr->card.video_vfe) { + pci_err(pdev, "%s = wrong VFE\n", __func__); + goto zr_detach_vfe; + } + } + + /* take care of Natoma chipset and a revision 1 zr36057 */ + if ((pci_pci_problems & PCIPCI_NATOMA) && zr->revision <= 1) + pci_info(zr->pci_dev, "ZR36057/Natoma bug, max. buffer size is 128K\n"); + + if (zr36057_init(zr) < 0) + goto zr_detach_vfe; + + zr->map_mode = ZORAN_MAP_MODE_RAW; + + return 0; + +zr_detach_vfe: + videocodec_detach(zr->vfe); +zr_detach_codec: + videocodec_detach(zr->codec); +zr_unreg_i2c: + zoran_unregister_i2c(zr); +zr_free_irq: + btwrite(0, ZR36057_SPGPPCR); + pci_free_irq(zr->pci_dev, 0, zr); +zr_pci_release: + pci_release_regions(pdev); +zr_unreg: + v4l2_ctrl_handler_free(&zr->hdl); + v4l2_device_unregister(&zr->v4l2_dev); +zr_free_mem: + + return -ENODEV; +} + +static struct pci_driver zoran_driver = { + .name = "zr36067", + .id_table = zr36067_pci_tbl, + .probe = zoran_probe, + .remove = zoran_remove, +}; + +static int __init zoran_init(void) +{ + int res; + + pr_info("Zoran MJPEG board driver version %s\n", ZORAN_VERSION); + + /* check the parameters we have been given, adjust if necessary */ + if (v4l_nbufs < 2) + v4l_nbufs = 2; + if (v4l_nbufs > VIDEO_MAX_FRAME) + v4l_nbufs = VIDEO_MAX_FRAME; + /* The user specifies the in KB, we want them in byte (and page aligned) */ + v4l_bufsize = PAGE_ALIGN(v4l_bufsize * 1024); + if (v4l_bufsize < 32768) + v4l_bufsize = 32768; + /* 2 MB is arbitrary but sufficient for the maximum possible images */ + if (v4l_bufsize > 2048 * 1024) + v4l_bufsize = 2048 * 1024; + if (jpg_nbufs < 4) + jpg_nbufs = 4; + if (jpg_nbufs > BUZ_MAX_FRAME) + jpg_nbufs = BUZ_MAX_FRAME; + jpg_bufsize = PAGE_ALIGN(jpg_bufsize * 1024); + if (jpg_bufsize < 8192) + jpg_bufsize = 8192; + if (jpg_bufsize > (512 * 1024)) + jpg_bufsize = 512 * 1024; + /* Use parameter for vidmem or try to find a video card */ + if (vidmem) + pr_info("%s: Using supplied video memory base address @ 0x%lx\n", ZORAN_NAME, vidmem); + + /* some mainboards might not do PCI-PCI data transfer well */ + if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) + pr_warn("%s: chipset does not support reliable PCI-PCI DMA\n", ZORAN_NAME); + + res = pci_register_driver(&zoran_driver); + if (res) { + pr_err("Unable to register ZR36057 driver\n"); + return res; + } + + return 0; +} + +static void __exit zoran_exit(void) +{ + pci_unregister_driver(&zoran_driver); +} + +module_init(zoran_init); +module_exit(zoran_exit); |