1 files changed, 541 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c
new file mode 100644
index 000000000000..d48b24d9abf4
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/m920x.c
@@ -0,0 +1,541 @@
+/* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
+ *
+ * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
+ *
+ *      This program is free software; you can redistribute it and/or modify it
+ *      under the terms of the GNU General Public License as published by the Free
+ *      Software Foundation, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+
+#include "m920x.h"
+
+#include "mt352.h"
+#include "mt352_priv.h"
+#include "qt1010.h"
+
+/* debug */
+static int dvb_usb_m920x_debug;
+module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
+
+static struct dvb_usb_rc_key megasky_rc_keys [] = {
+        { 0x0, 0x12, KEY_POWER },
+        { 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
+        { 0x0, 0x02, KEY_CHANNELUP },
+        { 0x0, 0x05, KEY_CHANNELDOWN },
+        { 0x0, 0x03, KEY_VOLUMEUP },
+        { 0x0, 0x06, KEY_VOLUMEDOWN },
+        { 0x0, 0x04, KEY_MUTE },
+        { 0x0, 0x07, KEY_OK }, /* TS */
+        { 0x0, 0x08, KEY_STOP },
+        { 0x0, 0x09, KEY_MENU }, /* swap */
+        { 0x0, 0x0a, KEY_REWIND },
+        { 0x0, 0x1b, KEY_PAUSE },
+        { 0x0, 0x1f, KEY_FASTFORWARD },
+        { 0x0, 0x0c, KEY_RECORD },
+        { 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
+        { 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
+};
+
+static inline int m9206_read(struct usb_device *udev, u8 request, u16 value,\
+                             u16 index, void *data, int size)
+{
+        int ret;
+
+        ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+                              request, USB_TYPE_VENDOR | USB_DIR_IN,
+                              value, index, data, size, 2000);
+        if (ret < 0)
+                return ret;
+
+        if (ret != size)
+                return -EIO;
+
+        return 0;
+}
+
+static inline int m9206_write(struct usb_device *udev, u8 request,
+                              u16 value, u16 index)
+{
+        int ret;
+
+        ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+                              request, USB_TYPE_VENDOR | USB_DIR_OUT,
+                              value, index, NULL, 0, 2000);
+        return ret;
+}
+
+static int m9206_rc_init(struct usb_device *udev)
+{
+        int ret = 0;
+
+        /* Remote controller init. */
+        if ((ret = m9206_write(udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
+                return ret;
+
+        if ((ret = m9206_write(udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
+                return ret;
+
+        return ret;
+}
+
+static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+        struct m9206_state *m = d->priv;
+        int i, ret = 0;
+        u8 rc_state[2];
+
+
+        if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
+                goto unlock;
+
+        if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
+                goto unlock;
+
+        for (i = 0; i < ARRAY_SIZE(megasky_rc_keys); i++)
+                if (megasky_rc_keys[i].data == rc_state[1]) {
+                        *event = megasky_rc_keys[i].event;
+
+                        switch(rc_state[0]) {
+                        case 0x80:
+                                *state = REMOTE_NO_KEY_PRESSED;
+                                goto unlock;
+
+                        case 0x93:
+                        case 0x92:
+                                m->rep_count = 0;
+                                *state = REMOTE_KEY_PRESSED;
+                                goto unlock;
+
+                        case 0x91:
+                                /* For comfort. */
+                                if (++m->rep_count > 2)
+                                        *state = REMOTE_KEY_REPEAT;
+                                goto unlock;
+
+                        default:
+                                deb_rc("Unexpected rc response %x\n", rc_state[0]);
+                                *state = REMOTE_NO_KEY_PRESSED;
+                                goto unlock;
+                        }
+                }
+
+        if (rc_state[1] != 0)
+                deb_rc("Unknown rc key %x\n", rc_state[1]);
+
+        *state = REMOTE_NO_KEY_PRESSED;
+
+        unlock:
+
+        return ret;
+}
+
+/* I2C */
+static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+                          int num)
+{
+        struct dvb_usb_device *d = i2c_get_adapdata(adap);
+        struct m9206_state *m = d->priv;
+        int i;
+        int ret = 0;
+
+        if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+                return -EAGAIN;
+
+        if (num > 2)
+                return -EINVAL;
+
+        for (i = 0; i < num; i++) {
+                if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr, 0x80)) != 0)
+                        goto unlock;
+
+                if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[0], 0x0)) != 0)
+                        goto unlock;
+
+                if (i + 1 < num && msg[i + 1].flags & I2C_M_RD) {
+                        int i2c_i;
+
+                        for (i2c_i = 0; i2c_i < M9206_I2C_MAX; i2c_i++)
+                                if (msg[i].addr == m->i2c_r[i2c_i].addr)
+                                        break;
+
+                        if (i2c_i >= M9206_I2C_MAX) {
+                                deb_rc("No magic for i2c addr!\n");
+                                ret = -EINVAL;
+                                goto unlock;
+                        }
+
+                        if ((ret = m9206_write(d->udev, M9206_I2C, m->i2c_r[i2c_i].magic, 0x80)) != 0)
+                                goto unlock;
+
+                        if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, msg[i + 1].buf, msg[i + 1].len)) != 0)
+                                goto unlock;
+
+                        i++;
+                } else {
+                        if (msg[i].len != 2)
+                                return -EINVAL;
+
+                        if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[1], 0x40)) != 0)
+                                goto unlock;
+                }
+        }
+        ret = i;
+        unlock:
+        mutex_unlock(&d->i2c_mutex);
+
+        return ret;
+}
+
+static u32 m9206_i2c_func(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm m9206_i2c_algo = {
+        .master_xfer   = m9206_i2c_xfer,
+        .functionality = m9206_i2c_func,
+};
+
+
+static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx,
+                            int pid)
+{
+        int ret = 0;
+
+        if (pid >= 0x8000)
+                return -EINVAL;
+
+        pid |= 0x8000;
+
+        if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
+                return ret;
+
+        if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
+                return ret;
+
+        return ret;
+}
+
+static int m9206_update_filters(struct dvb_usb_adapter *adap)
+{
+        struct m9206_state *m = adap->dev->priv;
+        int enabled = m->filtering_enabled;
+        int i, ret = 0, filter = 0;
+
+        for (i = 0; i < M9206_MAX_FILTERS; i++)
+                if (m->filters[i] == 8192)
+                        enabled = 0;
+
+        /* Disable all filters */
+        if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
+                return ret;
+
+        for (i = 0; i < M9206_MAX_FILTERS; i++)
+                if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
+                        return ret;
+
+        if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
+                return ret;
+
+        /* Set */
+        if (enabled) {
+                for (i = 0; i < M9206_MAX_FILTERS; i++) {
+                        if (m->filters[i] == 0)
+                                continue;
+
+                        if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
+                                return ret;
+
+                        filter++;
+                }
+        }
+
+        if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
+                return ret;
+
+        return ret;
+}
+
+static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+        struct m9206_state *m = adap->dev->priv;
+
+        m->filtering_enabled = onoff ? 1 : 0;
+
+        return m9206_update_filters(adap);
+}
+
+static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
+                            int onoff)
+{
+        struct m9206_state *m = adap->dev->priv;
+
+        m->filters[index] = onoff ? pid : 0;
+
+        return m9206_update_filters(adap);
+}
+
+static int m9206_firmware_download(struct usb_device *udev,
+                                   const struct firmware *fw)
+{
+        u16 value, index, size;
+        u8 read[4], *buff;
+        int i, pass, ret = 0;
+
+        buff = kmalloc(65536, GFP_KERNEL);
+
+        if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
+                goto done;
+        deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);
+
+        if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
+                goto done;
+        deb_rc("%x\n", read[0]);
+
+        for (pass = 0; pass < 2; pass++) {
+                for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
+                        value = le16_to_cpu(*(u16 *)(fw->data + i));
+                        i += sizeof(u16);
+
+                        index = le16_to_cpu(*(u16 *)(fw->data + i));
+                        i += sizeof(u16);
+
+                        size = le16_to_cpu(*(u16 *)(fw->data + i));
+                        i += sizeof(u16);
+
+                        if (pass == 1) {
+                                /* Will stall if using fw->data ... */
+                                memcpy(buff, fw->data + i, size);
+
+                                ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
+                                            M9206_FW,
+                                            USB_TYPE_VENDOR | USB_DIR_OUT,
+                                            value, index, buff, size, 20);
+                                if (ret != size) {
+                                        deb_rc("error while uploading fw!\n");
+                                        ret = -EIO;
+                                        goto done;
+                                }
+                                msleep(3);
+                        }
+                        i += size;
+                }
+                if (i != fw->size) {
+                        ret = -EINVAL;
+                        goto done;
+                }
+        }
+
+        msleep(36);
+
+        /* m9206 will disconnect itself from the bus after this. */
+        (void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
+        deb_rc("firmware uploaded!\n");
+
+        done:
+        kfree(buff);
+
+        return ret;
+}
+
+/* Callbacks for DVB USB */
+static int megasky_identify_state(struct usb_device *udev,
+                                  struct dvb_usb_device_properties *props,
+                                  struct dvb_usb_device_description **desc,
+                                  int *cold)
+{
+        struct usb_host_interface *alt;
+
+        alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
+        *cold = (alt == NULL) ? 1 : 0;
+
+        return 0;
+}
+
+static int megasky_mt352_demod_init(struct dvb_frontend *fe)
+{
+        u8 config[] = { CONFIG, 0x3d };
+        u8 clock[] = { CLOCK_CTL, 0x30 };
+        u8 reset[] = { RESET, 0x80 };
+        u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
+        u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
+        u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
+        u8 unk1[] = { 0x93, 0x1a };
+        u8 unk2[] = { 0xb5, 0x7a };
+
+        mt352_write(fe, config, ARRAY_SIZE(config));
+        mt352_write(fe, clock, ARRAY_SIZE(clock));
+        mt352_write(fe, reset, ARRAY_SIZE(reset));
+        mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
+        mt352_write(fe, agc, ARRAY_SIZE(agc));
+        mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
+        mt352_write(fe, unk1, ARRAY_SIZE(unk1));
+        mt352_write(fe, unk2, ARRAY_SIZE(unk2));
+
+        deb_rc("Demod init!\n");
+
+        return 0;
+}
+
+static struct mt352_config megasky_mt352_config = {
+        .demod_address = 0x1e,
+        .no_tuner = 1,
+        .demod_init = megasky_mt352_demod_init,
+};
+
+static int megasky_mt352_frontend_attach(struct dvb_usb_adapter *adap)
+{
+        struct m9206_state *m = adap->dev->priv;
+
+        deb_rc("megasky_frontend_attach!\n");
+
+        m->i2c_r[M9206_I2C_DEMOD].addr = megasky_mt352_config.demod_address;
+        m->i2c_r[M9206_I2C_DEMOD].magic = 0x1f;
+
+        if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) == NULL)
+                return -EIO;
+
+        return 0;
+}
+
+static struct qt1010_config megasky_qt1010_config = {
+        .i2c_address = 0xc4
+};
+
+static int megasky_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
+{
+        struct m9206_state *m = adap->dev->priv;
+
+        m->i2c_r[M9206_I2C_TUNER].addr = megasky_qt1010_config.i2c_address;
+        m->i2c_r[M9206_I2C_TUNER].magic = 0xc5;
+
+        if (dvb_attach(qt1010_attach, adap->fe, &adap->dev->i2c_adap,
+                       &megasky_qt1010_config) == NULL)
+                return -ENODEV;
+
+        return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties megasky_properties;
+
+static int m920x_probe(struct usb_interface *intf,
+                       const struct usb_device_id *id)
+{
+        struct dvb_usb_device *d;
+        struct usb_host_interface *alt;
+        int ret;
+
+        if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0) {
+                deb_rc("probed!\n");
+
+                alt = usb_altnum_to_altsetting(intf, 1);
+                if (alt == NULL) {
+                        deb_rc("not alt found!\n");
+                        return -ENODEV;
+                }
+
+                ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
+                                        alt->desc.bAlternateSetting);
+                if (ret < 0)
+                        return ret;
+
+                deb_rc("Changed to alternate setting!\n");
+
+                if ((ret = m9206_rc_init(d->udev)) != 0)
+                        return ret;
+        }
+        return ret;
+}
+
+static struct usb_device_id m920x_table [] = {
+                { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
+                { }             /* Terminating entry */
+};
+MODULE_DEVICE_TABLE (usb, m920x_table);
+
+static struct dvb_usb_device_properties megasky_properties = {
+        .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+        .usb_ctrl = DEVICE_SPECIFIC,
+        .firmware = "dvb-usb-megasky-02.fw",
+        .download_firmware = m9206_firmware_download,
+
+        .rc_interval      = 100,
+        .rc_key_map       = megasky_rc_keys,
+        .rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
+        .rc_query         = m9206_rc_query,
+
+        .size_of_priv     = sizeof(struct m9206_state),
+
+        .identify_state   = megasky_identify_state,
+        .num_adapters = 1,
+        .adapter = {{
+                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
+                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
+
+                .pid_filter_count = 8,
+                .pid_filter       = m9206_pid_filter,
+                .pid_filter_ctrl  = m9206_pid_filter_ctrl,
+
+                .frontend_attach  = megasky_mt352_frontend_attach,
+                .tuner_attach     = megasky_qt1010_tuner_attach,
+
+                .stream = {
+                        .type = USB_BULK,
+                        .count = 8,
+                        .endpoint = 0x81,
+                        .u = {
+                                .bulk = {
+                                        .buffersize = 512,
+                                }
+                        }
+                },
+        }},
+        .i2c_algo         = &m9206_i2c_algo,
+
+        .num_device_descs = 1,
+        .devices = {
+                {   "MSI Mega Sky 580 DVB-T USB2.0",
+                        { &m920x_table[0], NULL },
+                        { NULL },
+                },
+        }
+};
+
+static struct usb_driver m920x_driver = {
+        .name           = "dvb_usb_m920x",
+        .probe          = m920x_probe,
+        .disconnect     = dvb_usb_device_exit,
+        .id_table       = m920x_table,
+};
+
+/* module stuff */
+static int __init m920x_module_init(void)
+{
+        int ret;
+
+        if ((ret = usb_register(&m920x_driver))) {
+                err("usb_register failed. Error number %d", ret);
+                return ret;
+        }
+
+        return 0;
+}
+
+static void __exit m920x_module_exit(void)
+{
+        /* deregister this driver from the USB subsystem */
+        usb_deregister(&m920x_driver);
+}
+
+module_init (m920x_module_init);
+module_exit (m920x_module_exit);
+
+MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
+MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");