[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/media/radio/radio-aztech.c b/src/kernel/linux/v4.14/drivers/media/radio/radio-aztech.c
new file mode 100644
index 0000000..f445327
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/media/radio/radio-aztech.c
@@ -0,0 +1,160 @@
+/*
+ * 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 };
+
+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);
+}
+
+static struct radio_isa_card *aztech_alloc(void)
+{
+ struct aztech *az = kzalloc(sizeof(*az), GFP_KERNEL);
+
+ return az ? &az->isa : NULL;
+}
+
+static int aztech_s_frequency(struct radio_isa_card *isa, u32 freq)
+{
+ lm7000_set_freq(freq, isa, aztech_set_pins);
+
+ return 0;
+}
+
+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;
+}
+
+static u32 aztech_g_signal(struct radio_isa_card *isa)
+{
+ return (inb(isa->io) & AZTECH_BIT_NOT_TUNED) ? 0 : 0xffff;
+}
+
+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;
+}
+
+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);
+}
+
+static void __exit aztech_exit(void)
+{
+ isa_unregister_driver(&aztech_driver.driver);
+}
+
+module_init(aztech_init);
+module_exit(aztech_exit);