^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * RadioTrack II driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright 1998 Ben Pfaff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Fully tested with actual hardware and the v4l2-compliance tool.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h> /* Modules */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/init.h> /* Initdata */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/ioport.h> /* request_region */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/delay.h> /* udelay */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/videodev2.h> /* kernel radio structs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/io.h> /* outb, outb_p */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <media/v4l2-ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "radio-isa.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) MODULE_AUTHOR("Ben Pfaff");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) MODULE_VERSION("0.1.99");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #ifndef CONFIG_RADIO_RTRACK2_PORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CONFIG_RADIO_RTRACK2_PORT -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define RTRACK2_MAX 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static int io[RTRACK2_MAX] = { [0] = CONFIG_RADIO_RTRACK2_PORT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) [1 ... (RTRACK2_MAX - 1)] = -1 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static int radio_nr[RTRACK2_MAX] = { [0 ... (RTRACK2_MAX - 1)] = -1 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) module_param_array(io, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) MODULE_PARM_DESC(io, "I/O addresses of the RadioTrack card (0x20f or 0x30f)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) module_param_array(radio_nr, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) MODULE_PARM_DESC(radio_nr, "Radio device numbers");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static struct radio_isa_card *rtrack2_alloc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static void zero(struct radio_isa_card *isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) outb_p(1, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) outb_p(3, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) outb_p(1, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static void one(struct radio_isa_card *isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) outb_p(5, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) outb_p(7, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) outb_p(5, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int rtrack2_s_frequency(struct radio_isa_card *isa, u32 freq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) freq = freq / 200 + 856;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) outb_p(0xc8, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) outb_p(0xc9, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) outb_p(0xc9, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) for (i = 0; i < 10; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) zero(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) for (i = 14; i >= 0; i--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (freq & (1 << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) one(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) zero(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) outb_p(0xc8, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) outb_p(v4l2_ctrl_g_ctrl(isa->mute), isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static u32 rtrack2_g_signal(struct radio_isa_card *isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* bit set = no signal present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return (inb(isa->io) & 2) ? 0 : 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static int rtrack2_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) outb(mute, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static const struct radio_isa_ops rtrack2_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .alloc = rtrack2_alloc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .s_mute_volume = rtrack2_s_mute_volume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .s_frequency = rtrack2_s_frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .g_signal = rtrack2_g_signal,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static const int rtrack2_ioports[] = { 0x20f, 0x30f };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static struct radio_isa_driver rtrack2_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .match = radio_isa_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .probe = radio_isa_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .remove = radio_isa_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .name = "radio-rtrack2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .io_params = io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .radio_nr_params = radio_nr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .io_ports = rtrack2_ioports,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .num_of_io_ports = ARRAY_SIZE(rtrack2_ioports),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .region_size = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .card = "AIMSlab RadioTrack II",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .ops = &rtrack2_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .has_stereo = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int __init rtrack2_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return isa_register_driver(&rtrack2_driver.driver, RTRACK2_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void __exit rtrack2_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) isa_unregister_driver(&rtrack2_driver.driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) module_init(rtrack2_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) module_exit(rtrack2_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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