Release 4.7 drivers/media/radio/radio-aztech.c
/*
* radio-aztech.c - Aztech radio card driver
*
* Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@xs4all.nl>
* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
* Adapted to support the Video for Linux API by
* Russell Kroll <rkroll@exploits.org>. Based on original tuner code by:
*
* Quay Ly
* Donald Song
* Jason Lewis (jlewis@twilight.vtc.vsc.edu)
* Scott McGrath (smcgrath@twilight.vtc.vsc.edu)
* William McGrath (wmcgrath@twilight.vtc.vsc.edu)
*
* Fully tested with the Keene USB FM Transmitter and the v4l2-compliance tool.
*/
#include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */
#include <linux/videodev2.h> /* kernel radio structs */
#include <linux/io.h> /* outb, outb_p */
#include <linux/slab.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include "radio-isa.h"
#include "lm7000.h"
MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
MODULE_DESCRIPTION("A driver for the Aztech radio card.");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.0.0");
/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
#ifndef CONFIG_RADIO_AZTECH_PORT
#define CONFIG_RADIO_AZTECH_PORT -1
#endif
#define AZTECH_MAX 2
static int io[AZTECH_MAX] = { [0] = CONFIG_RADIO_AZTECH_PORT,
[1 ... (AZTECH_MAX - 1)] = -1 };
static int radio_nr[AZTECH_MAX] = { [0 ... (AZTECH_MAX - 1)] = -1 };
static const int radio_wait_time = 1000;
module_param_array(io, int, NULL, 0444);
MODULE_PARM_DESC(io, "I/O addresses of the Aztech card (0x350 or 0x358)");
module_param_array(radio_nr, int, NULL, 0444);
MODULE_PARM_DESC(radio_nr, "Radio device numbers");
struct aztech {
struct radio_isa_card isa;
int curvol;
};
/* bit definitions for register read */
#define AZTECH_BIT_NOT_TUNED (1 << 0)
#define AZTECH_BIT_MONO (1 << 1)
/* bit definitions for register write */
#define AZTECH_BIT_TUN_CE (1 << 1)
#define AZTECH_BIT_TUN_CLK (1 << 6)
#define AZTECH_BIT_TUN_DATA (1 << 7)
/* bits 0 and 2 are volume control, bits 3..5 are not connected */
static void aztech_set_pins(void *handle, u8 pins)
{
struct radio_isa_card *isa = handle;
struct aztech *az = container_of(isa, struct aztech, isa);
u8 bits = az->curvol;
if (pins & LM7000_DATA)
bits |= AZTECH_BIT_TUN_DATA;
if (pins & LM7000_CLK)
bits |= AZTECH_BIT_TUN_CLK;
if (pins & LM7000_CE)
bits |= AZTECH_BIT_TUN_CE;
outb_p(bits, az->isa.io);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ondrej zary | ondrej zary | 55 | 66.27% | 1 | 25.00% |
| pre-git | pre-git | 20 | 24.10% | 1 | 25.00% |
| hans verkuil | hans verkuil | 8 | 9.64% | 2 | 50.00% |
| Total | 83 | 100.00% | 4 | 100.00% |
static struct radio_isa_card *aztech_alloc(void)
{
struct aztech *az = kzalloc(sizeof(*az), GFP_KERNEL);
return az ? &az->isa : NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hans verkuil | hans verkuil | 25 | 69.44% | 2 | 66.67% |
| pre-git | pre-git | 11 | 30.56% | 1 | 33.33% |
| Total | 36 | 100.00% | 3 | 100.00% |
static int aztech_s_frequency(struct radio_isa_card *isa, u32 freq)
{
lm7000_set_freq(freq, isa, aztech_set_pins);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 15 | 57.69% | 1 | 33.33% |
| hans verkuil | hans verkuil | 8 | 30.77% | 1 | 33.33% |
| ondrej zary | ondrej zary | 3 | 11.54% | 1 | 33.33% |
| Total | 26 | 100.00% | 3 | 100.00% |
static u32 aztech_g_rxsubchans(struct radio_isa_card *isa)
{
if (inb(isa->io) & AZTECH_BIT_MONO)
return V4L2_TUNER_SUB_MONO;
return V4L2_TUNER_SUB_STEREO;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hans verkuil | hans verkuil | 12 | 42.86% | 2 | 28.57% |
| mauro carvalho chehab | mauro carvalho chehab | 7 | 25.00% | 2 | 28.57% |
| pre-git | pre-git | 6 | 21.43% | 1 | 14.29% |
| gerd knorr | gerd knorr | 2 | 7.14% | 1 | 14.29% |
| ondrej zary | ondrej zary | 1 | 3.57% | 1 | 14.29% |
| Total | 28 | 100.00% | 7 | 100.00% |
static u32 aztech_g_signal(struct radio_isa_card *isa)
{
return (inb(isa->io) & AZTECH_BIT_NOT_TUNED) ? 0 : 0xffff;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ondrej zary | ondrej zary | 12 | 44.44% | 1 | 25.00% |
| mauro carvalho chehab | mauro carvalho chehab | 9 | 33.33% | 1 | 25.00% |
| hans verkuil | hans verkuil | 6 | 22.22% | 2 | 50.00% |
| Total | 27 | 100.00% | 4 | 100.00% |
static int aztech_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
{
struct aztech *az = container_of(isa, struct aztech, isa);
if (mute)
vol = 0;
az->curvol = (vol & 1) + ((vol & 2) << 1);
outb(az->curvol, isa->io);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hans verkuil | hans verkuil | 36 | 48.65% | 3 | 42.86% |
| mauro carvalho chehab | mauro carvalho chehab | 23 | 31.08% | 3 | 42.86% |
| pre-git | pre-git | 15 | 20.27% | 1 | 14.29% |
| Total | 74 | 100.00% | 7 | 100.00% |
static const struct radio_isa_ops aztech_ops = {
.alloc = aztech_alloc,
.s_mute_volume = aztech_s_mute_volume,
.s_frequency = aztech_s_frequency,
.g_rxsubchans = aztech_g_rxsubchans,
.g_signal = aztech_g_signal,
};
static const int aztech_ioports[] = { 0x350, 0x358 };
static struct radio_isa_driver aztech_driver = {
.driver = {
.match = radio_isa_match,
.probe = radio_isa_probe,
.remove = radio_isa_remove,
.driver = {
.name = "radio-aztech",
},
},
.io_params = io,
.radio_nr_params = radio_nr,
.io_ports = aztech_ioports,
.num_of_io_ports = ARRAY_SIZE(aztech_ioports),
.region_size = 8,
.card = "Aztech Radio",
.ops = &aztech_ops,
.has_stereo = true,
.max_volume = 3,
};
static int __init aztech_init(void)
{
return isa_register_driver(&aztech_driver.driver, AZTECH_MAX);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hans verkuil | hans verkuil | 17 | 85.00% | 3 | 75.00% |
| pre-git | pre-git | 3 | 15.00% | 1 | 25.00% |
| Total | 20 | 100.00% | 4 | 100.00% |
static void __exit aztech_exit(void)
{
isa_unregister_driver(&aztech_driver.driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 10 | 58.82% | 2 | 50.00% |
| hans verkuil | hans verkuil | 7 | 41.18% | 2 | 50.00% |
| Total | 17 | 100.00% | 4 | 100.00% |
module_init(aztech_init);
module_exit(aztech_exit);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hans verkuil | hans verkuil | 310 | 47.18% | 7 | 31.82% |
| pre-git | pre-git | 145 | 22.07% | 3 | 13.64% |
| ondrej zary | ondrej zary | 102 | 15.53% | 2 | 9.09% |
| mauro carvalho chehab | mauro carvalho chehab | 77 | 11.72% | 5 | 22.73% |
| gerd knorr | gerd knorr | 9 | 1.37% | 1 | 4.55% |
| linus torvalds | linus torvalds | 7 | 1.07% | 1 | 4.55% |
| art haas | art haas | 5 | 0.76% | 1 | 4.55% |
| peter osterlund | peter osterlund | 1 | 0.15% | 1 | 4.55% |
| arjan van de ven | arjan van de ven | 1 | 0.15% | 1 | 4.55% |
| Total | 657 | 100.00% | 22 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.