[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/media/radio/radio-sf16fmr2.c b/src/kernel/linux/v4.14/drivers/media/radio/radio-sf16fmr2.c
new file mode 100644
index 0000000..de79d55
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/media/radio/radio-sf16fmr2.c
@@ -0,0 +1,346 @@
+/* SF16-FMR2 and SF16-FMD2 radio driver for Linux
+ * Copyright (c) 2011 Ondrej Zary
+ *
+ * Original driver was (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
+ * but almost nothing remained here after conversion to generic TEA575x
+ * implementation
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h> /* Modules */
+#include <linux/init.h> /* Initdata */
+#include <linux/slab.h>
+#include <linux/ioport.h> /* request_region */
+#include <linux/io.h> /* outb, outb_p */
+#include <linux/isa.h>
+#include <linux/pnp.h>
+#include <media/drv-intf/tea575x.h>
+
+MODULE_AUTHOR("Ondrej Zary");
+MODULE_DESCRIPTION("MediaForte SF16-FMR2 and SF16-FMD2 FM radio card driver");
+MODULE_LICENSE("GPL");
+
+/* these cards can only use two different ports (0x384 and 0x284) */
+#define FMR2_MAX 2
+
+static int radio_nr[FMR2_MAX] = { [0 ... (FMR2_MAX - 1)] = -1 };
+module_param_array(radio_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio device numbers");
+
+struct fmr2 {
+ int io;
+ struct v4l2_device v4l2_dev;
+ struct snd_tea575x tea;
+ struct v4l2_ctrl *volume;
+ struct v4l2_ctrl *balance;
+ bool is_fmd2;
+};
+
+static int num_fmr2_cards;
+static struct fmr2 *fmr2_cards[FMR2_MAX];
+static bool isa_registered;
+static bool pnp_registered;
+
+/* the port is hardwired on SF16-FMR2 */
+#define FMR2_PORT 0x384
+
+/* TEA575x tuner pins */
+#define STR_DATA (1 << 0)
+#define STR_CLK (1 << 1)
+#define STR_WREN (1 << 2)
+#define STR_MOST (1 << 3)
+/* PT2254A/TC9154A volume control pins */
+#define PT_ST (1 << 4)
+#define PT_CK (1 << 5)
+#define PT_DATA (1 << 6)
+/* volume control presence pin */
+#define FMR2_HASVOL (1 << 7)
+
+static void fmr2_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
+{
+ struct fmr2 *fmr2 = tea->private_data;
+ u8 bits = 0;
+
+ bits |= (pins & TEA575X_DATA) ? STR_DATA : 0;
+ bits |= (pins & TEA575X_CLK) ? STR_CLK : 0;
+ /* WRITE_ENABLE is inverted, DATA must be high during read */
+ bits |= (pins & TEA575X_WREN) ? 0 : STR_WREN | STR_DATA;
+
+ outb(bits, fmr2->io);
+}
+
+static u8 fmr2_tea575x_get_pins(struct snd_tea575x *tea)
+{
+ struct fmr2 *fmr2 = tea->private_data;
+ u8 bits = inb(fmr2->io);
+
+ return ((bits & STR_DATA) ? TEA575X_DATA : 0) |
+ ((bits & STR_MOST) ? TEA575X_MOST : 0);
+}
+
+static void fmr2_tea575x_set_direction(struct snd_tea575x *tea, bool output)
+{
+}
+
+static const struct snd_tea575x_ops fmr2_tea_ops = {
+ .set_pins = fmr2_tea575x_set_pins,
+ .get_pins = fmr2_tea575x_get_pins,
+ .set_direction = fmr2_tea575x_set_direction,
+};
+
+/* TC9154A/PT2254A volume control */
+
+/* 18-bit shift register bit definitions */
+#define TC9154A_ATT_MAJ_0DB (1 << 0)
+#define TC9154A_ATT_MAJ_10DB (1 << 1)
+#define TC9154A_ATT_MAJ_20DB (1 << 2)
+#define TC9154A_ATT_MAJ_30DB (1 << 3)
+#define TC9154A_ATT_MAJ_40DB (1 << 4)
+#define TC9154A_ATT_MAJ_50DB (1 << 5)
+#define TC9154A_ATT_MAJ_60DB (1 << 6)
+
+#define TC9154A_ATT_MIN_0DB (1 << 7)
+#define TC9154A_ATT_MIN_2DB (1 << 8)
+#define TC9154A_ATT_MIN_4DB (1 << 9)
+#define TC9154A_ATT_MIN_6DB (1 << 10)
+#define TC9154A_ATT_MIN_8DB (1 << 11)
+/* bit 12 is ignored */
+#define TC9154A_CHANNEL_LEFT (1 << 13)
+#define TC9154A_CHANNEL_RIGHT (1 << 14)
+/* bits 15, 16, 17 must be 0 */
+
+#define TC9154A_ATT_MAJ(x) (1 << x)
+#define TC9154A_ATT_MIN(x) (1 << (7 + x))
+
+static void tc9154a_set_pins(struct fmr2 *fmr2, u8 pins)
+{
+ if (!fmr2->tea.mute)
+ pins |= STR_WREN;
+
+ outb(pins, fmr2->io);
+}
+
+static void tc9154a_set_attenuation(struct fmr2 *fmr2, int att, u32 channel)
+{
+ int i;
+ u32 reg;
+ u8 bit;
+
+ reg = TC9154A_ATT_MAJ(att / 10) | TC9154A_ATT_MIN((att % 10) / 2);
+ reg |= channel;
+ /* write 18-bit shift register, LSB first */
+ for (i = 0; i < 18; i++) {
+ bit = reg & (1 << i) ? PT_DATA : 0;
+ tc9154a_set_pins(fmr2, bit);
+ udelay(5);
+ tc9154a_set_pins(fmr2, bit | PT_CK);
+ udelay(5);
+ tc9154a_set_pins(fmr2, bit);
+ }
+
+ /* latch register data */
+ udelay(5);
+ tc9154a_set_pins(fmr2, PT_ST);
+ udelay(5);
+ tc9154a_set_pins(fmr2, 0);
+}
+
+static int fmr2_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler);
+ struct fmr2 *fmr2 = tea->private_data;
+ int volume, balance, left, right;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_VOLUME:
+ volume = ctrl->val;
+ balance = fmr2->balance->cur.val;
+ break;
+ case V4L2_CID_AUDIO_BALANCE:
+ balance = ctrl->val;
+ volume = fmr2->volume->cur.val;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ left = right = volume;
+ if (balance < 0)
+ right = max(0, right + balance);
+ if (balance > 0)
+ left = max(0, left - balance);
+
+ tc9154a_set_attenuation(fmr2, abs(left - 68), TC9154A_CHANNEL_LEFT);
+ tc9154a_set_attenuation(fmr2, abs(right - 68), TC9154A_CHANNEL_RIGHT);
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops fmr2_ctrl_ops = {
+ .s_ctrl = fmr2_s_ctrl,
+};
+
+static int fmr2_tea_ext_init(struct snd_tea575x *tea)
+{
+ struct fmr2 *fmr2 = tea->private_data;
+
+ /* FMR2 can have volume control, FMD2 can't (uses SB16 mixer) */
+ if (!fmr2->is_fmd2 && inb(fmr2->io) & FMR2_HASVOL) {
+ fmr2->volume = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 68, 2, 56);
+ fmr2->balance = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_BALANCE, -68, 68, 2, 0);
+ if (tea->ctrl_handler.error) {
+ printk(KERN_ERR "radio-sf16fmr2: can't initialize controls\n");
+ return tea->ctrl_handler.error;
+ }
+ }
+
+ return 0;
+}
+
+static const struct pnp_device_id fmr2_pnp_ids[] = {
+ { .id = "MFRad13" }, /* tuner subdevice of SF16-FMD2 */
+ { .id = "" }
+};
+MODULE_DEVICE_TABLE(pnp, fmr2_pnp_ids);
+
+static int fmr2_probe(struct fmr2 *fmr2, struct device *pdev, int io)
+{
+ int err, i;
+ char *card_name = fmr2->is_fmd2 ? "SF16-FMD2" : "SF16-FMR2";
+
+ /* avoid errors if a card was already registered at given port */
+ for (i = 0; i < num_fmr2_cards; i++)
+ if (io == fmr2_cards[i]->io)
+ return -EBUSY;
+
+ strlcpy(fmr2->v4l2_dev.name, "radio-sf16fmr2",
+ sizeof(fmr2->v4l2_dev.name)),
+ fmr2->io = io;
+
+ if (!request_region(fmr2->io, 2, fmr2->v4l2_dev.name)) {
+ printk(KERN_ERR "radio-sf16fmr2: I/O port 0x%x already in use\n", fmr2->io);
+ return -EBUSY;
+ }
+
+ dev_set_drvdata(pdev, fmr2);
+ err = v4l2_device_register(pdev, &fmr2->v4l2_dev);
+ if (err < 0) {
+ v4l2_err(&fmr2->v4l2_dev, "Could not register v4l2_device\n");
+ release_region(fmr2->io, 2);
+ return err;
+ }
+ fmr2->tea.v4l2_dev = &fmr2->v4l2_dev;
+ fmr2->tea.private_data = fmr2;
+ fmr2->tea.radio_nr = radio_nr[num_fmr2_cards];
+ fmr2->tea.ops = &fmr2_tea_ops;
+ fmr2->tea.ext_init = fmr2_tea_ext_init;
+ strlcpy(fmr2->tea.card, card_name, sizeof(fmr2->tea.card));
+ snprintf(fmr2->tea.bus_info, sizeof(fmr2->tea.bus_info), "%s:%s",
+ fmr2->is_fmd2 ? "PnP" : "ISA", dev_name(pdev));
+
+ if (snd_tea575x_init(&fmr2->tea, THIS_MODULE)) {
+ printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n");
+ release_region(fmr2->io, 2);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "radio-sf16fmr2: %s radio card at 0x%x.\n",
+ card_name, fmr2->io);
+ return 0;
+}
+
+static int fmr2_isa_match(struct device *pdev, unsigned int ndev)
+{
+ struct fmr2 *fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL);
+ if (!fmr2)
+ return 0;
+
+ if (fmr2_probe(fmr2, pdev, FMR2_PORT)) {
+ kfree(fmr2);
+ return 0;
+ }
+ dev_set_drvdata(pdev, fmr2);
+ fmr2_cards[num_fmr2_cards++] = fmr2;
+
+ return 1;
+}
+
+static int fmr2_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *id)
+{
+ int ret;
+ struct fmr2 *fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL);
+ if (!fmr2)
+ return -ENOMEM;
+
+ fmr2->is_fmd2 = true;
+ ret = fmr2_probe(fmr2, &pdev->dev, pnp_port_start(pdev, 0));
+ if (ret) {
+ kfree(fmr2);
+ return ret;
+ }
+ pnp_set_drvdata(pdev, fmr2);
+ fmr2_cards[num_fmr2_cards++] = fmr2;
+
+ return 0;
+}
+
+static void fmr2_remove(struct fmr2 *fmr2)
+{
+ snd_tea575x_exit(&fmr2->tea);
+ release_region(fmr2->io, 2);
+ v4l2_device_unregister(&fmr2->v4l2_dev);
+ kfree(fmr2);
+}
+
+static int fmr2_isa_remove(struct device *pdev, unsigned int ndev)
+{
+ fmr2_remove(dev_get_drvdata(pdev));
+
+ return 0;
+}
+
+static void fmr2_pnp_remove(struct pnp_dev *pdev)
+{
+ fmr2_remove(pnp_get_drvdata(pdev));
+ pnp_set_drvdata(pdev, NULL);
+}
+
+static struct isa_driver fmr2_isa_driver = {
+ .match = fmr2_isa_match,
+ .remove = fmr2_isa_remove,
+ .driver = {
+ .name = "radio-sf16fmr2",
+ },
+};
+
+static struct pnp_driver fmr2_pnp_driver = {
+ .name = "radio-sf16fmr2",
+ .id_table = fmr2_pnp_ids,
+ .probe = fmr2_pnp_probe,
+ .remove = fmr2_pnp_remove,
+};
+
+static int __init fmr2_init(void)
+{
+ int ret;
+
+ ret = pnp_register_driver(&fmr2_pnp_driver);
+ if (!ret)
+ pnp_registered = true;
+ ret = isa_register_driver(&fmr2_isa_driver, 1);
+ if (!ret)
+ isa_registered = true;
+
+ return (pnp_registered || isa_registered) ? 0 : ret;
+}
+
+static void __exit fmr2_exit(void)
+{
+ if (pnp_registered)
+ pnp_unregister_driver(&fmr2_pnp_driver);
+ if (isa_registered)
+ isa_unregister_driver(&fmr2_isa_driver);
+}
+
+module_init(fmr2_init);
+module_exit(fmr2_exit);