^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) bt866 - BT866 Digital Video Encoder (Rockwell Part)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) Copyright (C) 1999 Mike Bernson <mike@mlb.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Copyright (C) 1998 Dave Perks <dperks@ibm.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) Modifications for LML33/DC10plus unified driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) This code was modify/ported from the saa7111 driver written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) by Dave Perks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) This code was adapted for the bt866 by Christer Weinigel and ported
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) to 2.6 by Martin Samuelsson.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/videodev2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) MODULE_AUTHOR("Mike Bernson & Dave Perks");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static int debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) module_param(debug, int, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) MODULE_PARM_DESC(debug, "Debug level (0-1)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* ----------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct bt866 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct v4l2_subdev sd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u8 reg[256];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static inline struct bt866 *to_bt866(struct v4l2_subdev *sd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return container_of(sd, struct bt866, sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u8 buffer[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) buffer[0] = subaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) buffer[1] = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) encoder->reg[subaddr] = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) v4l_dbg(1, debug, client, "write 0x%02x = 0x%02x\n", subaddr, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) for (err = 0; err < 3;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (i2c_master_send(client, buffer, 2) == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) err++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) v4l_warn(client, "error #%d writing to 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) err, subaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) schedule_timeout_interruptible(msecs_to_jiffies(100));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (err == 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) v4l_warn(client, "giving up\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int bt866_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* Only PAL supported by this driver at the moment! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (!(std & V4L2_STD_NTSC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static int bt866_s_routing(struct v4l2_subdev *sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) u32 input, u32 output, u32 config)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static const __u8 init[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 0xc8, 0xcc, /* CRSCALE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 0xca, 0x91, /* CBSCALE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 0xcc, 0x24, /* YC16 | OSDNUM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 0xda, 0x00, /* */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) 0xdc, 0x24, /* SETMODE | PAL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) 0xde, 0x02, /* EACTIVE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /* overlay colors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct bt866 *encoder = to_bt866(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) bt866_write(encoder, init[i], init[i+1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) val = encoder->reg[0xdc];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (input == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) val |= 0x40; /* CBSWAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) val &= ~0x40; /* !CBSWAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) bt866_write(encoder, 0xdc, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) val = encoder->reg[0xcc];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (input == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) val |= 0x01; /* OSDBAR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) val &= ~0x01; /* !OSDBAR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) bt866_write(encoder, 0xcc, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) v4l2_dbg(1, debug, sd, "set input %d\n", input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) switch (input) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* Code to setup square pixels, might be of some use in the future,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) but is currently unused. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) val = encoder->reg[0xdc];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (*iarg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) val |= 1; /* SQUARE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) val &= ~1; /* !SQUARE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) bt866_write(client, 0xdc, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* ----------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static const struct v4l2_subdev_video_ops bt866_video_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .s_std_output = bt866_s_std_output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .s_routing = bt866_s_routing,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static const struct v4l2_subdev_ops bt866_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .video = &bt866_video_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static int bt866_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct bt866 *encoder;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct v4l2_subdev *sd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) v4l_info(client, "chip found @ 0x%x (%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) client->addr << 1, client->adapter->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (encoder == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) sd = &encoder->sd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) v4l2_i2c_subdev_init(sd, client, &bt866_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int bt866_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct v4l2_subdev *sd = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) v4l2_device_unregister_subdev(sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static const struct i2c_device_id bt866_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) { "bt866", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) MODULE_DEVICE_TABLE(i2c, bt866_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static struct i2c_driver bt866_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) .name = "bt866",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .probe = bt866_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) .remove = bt866_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .id_table = bt866_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) module_i2c_driver(bt866_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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