[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/media/radio/radio-trust.c b/src/kernel/linux/v4.14/drivers/media/radio/radio-trust.c
new file mode 100644
index 0000000..26a8c60
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/media/radio/radio-trust.c
@@ -0,0 +1,243 @@
+/* radio-trust.c - Trust FM Radio card driver for Linux 2.2
+ * by Eric Lammerts <eric@scintilla.utwente.nl>
+ *
+ * Based on radio-aztech.c. Original notes:
+ *
+ * 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)
+ *
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
+ */
+
+#include <stdarg.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/videodev2.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "radio-isa.h"
+
+MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1.99");
+
+/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
+
+#ifndef CONFIG_RADIO_TRUST_PORT
+#define CONFIG_RADIO_TRUST_PORT -1
+#endif
+
+#define TRUST_MAX 2
+
+static int io[TRUST_MAX] = { [0] = CONFIG_RADIO_TRUST_PORT,
+ [1 ... (TRUST_MAX - 1)] = -1 };
+static int radio_nr[TRUST_MAX] = { [0 ... (TRUST_MAX - 1)] = -1 };
+
+module_param_array(io, int, NULL, 0444);
+MODULE_PARM_DESC(io, "I/O addresses of the Trust FM Radio card (0x350 or 0x358)");
+module_param_array(radio_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio device numbers");
+
+struct trust {
+ struct radio_isa_card isa;
+ int ioval;
+};
+
+static struct radio_isa_card *trust_alloc(void)
+{
+ struct trust *tr = kzalloc(sizeof(*tr), GFP_KERNEL);
+
+ return tr ? &tr->isa : NULL;
+}
+
+/* i2c addresses */
+#define TDA7318_ADDR 0x88
+#define TSA6060T_ADDR 0xc4
+
+#define TR_DELAY do { inb(tr->isa.io); inb(tr->isa.io); inb(tr->isa.io); } while (0)
+#define TR_SET_SCL outb(tr->ioval |= 2, tr->isa.io)
+#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->isa.io)
+#define TR_SET_SDA outb(tr->ioval |= 1, tr->isa.io)
+#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->isa.io)
+
+static void write_i2c(struct trust *tr, int n, ...)
+{
+ unsigned char val, mask;
+ va_list args;
+
+ va_start(args, n);
+
+ /* start condition */
+ TR_SET_SDA;
+ TR_SET_SCL;
+ TR_DELAY;
+ TR_CLR_SDA;
+ TR_CLR_SCL;
+ TR_DELAY;
+
+ for (; n; n--) {
+ val = va_arg(args, unsigned);
+ for (mask = 0x80; mask; mask >>= 1) {
+ if (val & mask)
+ TR_SET_SDA;
+ else
+ TR_CLR_SDA;
+ TR_SET_SCL;
+ TR_DELAY;
+ TR_CLR_SCL;
+ TR_DELAY;
+ }
+ /* acknowledge bit */
+ TR_SET_SDA;
+ TR_SET_SCL;
+ TR_DELAY;
+ TR_CLR_SCL;
+ TR_DELAY;
+ }
+
+ /* stop condition */
+ TR_CLR_SDA;
+ TR_DELAY;
+ TR_SET_SCL;
+ TR_DELAY;
+ TR_SET_SDA;
+ TR_DELAY;
+
+ va_end(args);
+}
+
+static int trust_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
+{
+ struct trust *tr = container_of(isa, struct trust, isa);
+
+ tr->ioval = (tr->ioval & 0xf7) | (mute << 3);
+ outb(tr->ioval, isa->io);
+ write_i2c(tr, 2, TDA7318_ADDR, vol ^ 0x1f);
+ return 0;
+}
+
+static int trust_s_stereo(struct radio_isa_card *isa, bool stereo)
+{
+ struct trust *tr = container_of(isa, struct trust, isa);
+
+ tr->ioval = (tr->ioval & 0xfb) | (!stereo << 2);
+ outb(tr->ioval, isa->io);
+ return 0;
+}
+
+static u32 trust_g_signal(struct radio_isa_card *isa)
+{
+ int i, v;
+
+ for (i = 0, v = 0; i < 100; i++)
+ v |= inb(isa->io);
+ return (v & 1) ? 0 : 0xffff;
+}
+
+static int trust_s_frequency(struct radio_isa_card *isa, u32 freq)
+{
+ struct trust *tr = container_of(isa, struct trust, isa);
+
+ freq /= 160; /* Convert to 10 kHz units */
+ freq += 1070; /* Add 10.7 MHz IF */
+ write_i2c(tr, 5, TSA6060T_ADDR, (freq << 1) | 1,
+ freq >> 7, 0x60 | ((freq >> 15) & 1), 0);
+ return 0;
+}
+
+static int basstreble2chip[15] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8
+};
+
+static int trust_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct radio_isa_card *isa =
+ container_of(ctrl->handler, struct radio_isa_card, hdl);
+ struct trust *tr = container_of(isa, struct trust, isa);
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_BASS:
+ write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[ctrl->val]);
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[ctrl->val]);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static const struct v4l2_ctrl_ops trust_ctrl_ops = {
+ .s_ctrl = trust_s_ctrl,
+};
+
+static int trust_initialize(struct radio_isa_card *isa)
+{
+ struct trust *tr = container_of(isa, struct trust, isa);
+
+ tr->ioval = 0xf;
+ write_i2c(tr, 2, TDA7318_ADDR, 0x80); /* speaker att. LF = 0 dB */
+ write_i2c(tr, 2, TDA7318_ADDR, 0xa0); /* speaker att. RF = 0 dB */
+ write_i2c(tr, 2, TDA7318_ADDR, 0xc0); /* speaker att. LR = 0 dB */
+ write_i2c(tr, 2, TDA7318_ADDR, 0xe0); /* speaker att. RR = 0 dB */
+ write_i2c(tr, 2, TDA7318_ADDR, 0x40); /* stereo 1 input, gain = 18.75 dB */
+
+ v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops,
+ V4L2_CID_AUDIO_BASS, 0, 15, 1, 8);
+ v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops,
+ V4L2_CID_AUDIO_TREBLE, 0, 15, 1, 8);
+ return isa->hdl.error;
+}
+
+static const struct radio_isa_ops trust_ops = {
+ .init = trust_initialize,
+ .alloc = trust_alloc,
+ .s_mute_volume = trust_s_mute_volume,
+ .s_frequency = trust_s_frequency,
+ .s_stereo = trust_s_stereo,
+ .g_signal = trust_g_signal,
+};
+
+static const int trust_ioports[] = { 0x350, 0x358 };
+
+static struct radio_isa_driver trust_driver = {
+ .driver = {
+ .match = radio_isa_match,
+ .probe = radio_isa_probe,
+ .remove = radio_isa_remove,
+ .driver = {
+ .name = "radio-trust",
+ },
+ },
+ .io_params = io,
+ .radio_nr_params = radio_nr,
+ .io_ports = trust_ioports,
+ .num_of_io_ports = ARRAY_SIZE(trust_ioports),
+ .region_size = 2,
+ .card = "Trust FM Radio",
+ .ops = &trust_ops,
+ .has_stereo = true,
+ .max_volume = 31,
+};
+
+static int __init trust_init(void)
+{
+ return isa_register_driver(&trust_driver.driver, TRUST_MAX);
+}
+
+static void __exit trust_exit(void)
+{
+ isa_unregister_driver(&trust_driver.driver);
+}
+
+module_init(trust_init);
+module_exit(trust_exit);