^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) * Driver for the Conexant CX23885/7/8 PCIe bridge
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Various common ioctl() support functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2009 Andy Walls <awalls@md.metrocast.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "cx23885.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "cx23885-ioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifdef CONFIG_VIDEO_ADV_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) int cx23885_g_chip_info(struct file *file, void *fh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct v4l2_dbg_chip_info *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct cx23885_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) if (chip->match.addr > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) if (chip->match.addr == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) if (dev->v4l_device == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) strscpy(chip->name, "cx23417", sizeof(chip->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) strscpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static int cx23417_g_register(struct cx23885_dev *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u32 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (dev->v4l_device == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if ((reg->reg & 0x3) != 0 || reg->reg >= 0x10000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (mc417_register_read(dev, (u16) reg->reg, &value))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return -EINVAL; /* V4L2 spec, but -EREMOTEIO really */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) reg->size = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) reg->val = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int cx23885_g_register(struct file *file, void *fh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct cx23885_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (reg->match.addr > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) if (reg->match.addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return cx23417_g_register(dev, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if ((reg->reg & 0x3) != 0 || reg->reg >= pci_resource_len(dev->pci, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) reg->size = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) reg->val = cx_read(reg->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static int cx23417_s_register(struct cx23885_dev *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) const struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (dev->v4l_device == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if ((reg->reg & 0x3) != 0 || reg->reg >= 0x10000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (mc417_register_write(dev, (u16) reg->reg, (u32) reg->val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return -EINVAL; /* V4L2 spec, but -EREMOTEIO really */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) int cx23885_s_register(struct file *file, void *fh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) const struct v4l2_dbg_register *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct cx23885_dev *dev = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (reg->match.addr > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (reg->match.addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return cx23417_s_register(dev, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if ((reg->reg & 0x3) != 0 || reg->reg >= pci_resource_len(dev->pci, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) cx_write(reg->reg, reg->val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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