media/radio/radio-terratec.c

1 // SPDX-License-Identifier: GPL-2.0-only
9  * 1999-05-21	First preview release
11  *  Notes on the hardware:
13  *  - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf)
14  *  - Philips SAA6588 (http://www-us.semiconductors.philips.com/acrobat/datasheets/SAA6588_1.pdf)
17  *  Frequency control is done digitally -- ie out(port,encodefreq(95.8));
20  * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
31 #include <media/v4l2-device.h>
32 #include <media/v4l2-ioctl.h>
33 #include "radio-isa.h"
41    hardware this is hard to verify. For now, this is the only one we will
44 static int radio_nr = -1;
71 			outb(0x80, isa->io + 1);  in terratec_s_mute_volume()
73 			outb(0x00, isa->io + 1);  in terratec_s_mute_volume()
93 					/* maybe some wise guy (friedhelm?) can comment this stuff */  in terratec_s_frequency()
101 			rest = rest - temp;  in terratec_s_frequency()
103 		i--;  in terratec_s_frequency()
107 	for (i = 24; i > -1; i--) {	/* bit shift the values to the radiocard */  in terratec_s_frequency()
109 			outb(WRT_EN | DATA, isa->io);  in terratec_s_frequency()
110 			outb(WRT_EN | DATA | CLK_ON, isa->io);  in terratec_s_frequency()
111 			outb(WRT_EN | DATA, isa->io);  in terratec_s_frequency()
113 			outb(WRT_EN | 0x00, isa->io);  in terratec_s_frequency()
114 			outb(WRT_EN | 0x00 | CLK_ON, isa->io);  in terratec_s_frequency()
117 	outb(0x00, isa->io);  in terratec_s_frequency()
124 	return (inb(isa->io) & 2) ? 0 : 0xffff;  in terratec_g_signal()
142 			.name	= "radio-terratec",