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path: root/drivers/media/dvb/dvb-usb/rtl28xxu.c
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Diffstat (limited to 'drivers/media/dvb/dvb-usb/rtl28xxu.c')
-rw-r--r--drivers/media/dvb/dvb-usb/rtl28xxu.c982
1 files changed, 982 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/rtl28xxu.c b/drivers/media/dvb/dvb-usb/rtl28xxu.c
new file mode 100644
index 00000000000..8f4736a10fc
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/rtl28xxu.c
@@ -0,0 +1,982 @@
+/*
+ * Realtek RTL28xxU DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "rtl28xxu.h"
+
+#include "rtl2830.h"
+
+#include "qt1010.h"
+#include "mt2060.h"
+#include "mxl5005s.h"
+
+/* debug */
+static int dvb_usb_rtl28xxu_debug;
+module_param_named(debug, dvb_usb_rtl28xxu_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
+{
+ int ret;
+ unsigned int pipe;
+ u8 requesttype;
+ u8 *buf;
+
+ buf = kmalloc(req->size, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ if (req->index & CMD_WR_FLAG) {
+ /* write */
+ memcpy(buf, req->data, req->size);
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+ pipe = usb_sndctrlpipe(d->udev, 0);
+ } else {
+ /* read */
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+ pipe = usb_rcvctrlpipe(d->udev, 0);
+ }
+
+ ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
+ req->index, buf, req->size, 1000);
+ if (ret > 0)
+ ret = 0;
+
+ deb_dump(0, requesttype, req->value, req->index, buf, req->size,
+ deb_xfer);
+
+ /* read request, copy returned data to return buf */
+ if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
+ memcpy(req->data, buf, req->size);
+
+ kfree(buf);
+
+ if (ret)
+ goto err;
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl2831_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
+{
+ struct rtl28xxu_req req;
+
+ if (reg < 0x3000)
+ req.index = CMD_USB_WR;
+ else if (reg < 0x4000)
+ req.index = CMD_SYS_WR;
+ else
+ req.index = CMD_IR_WR;
+
+ req.value = reg;
+ req.size = len;
+ req.data = val;
+
+ return rtl28xxu_ctrl_msg(d, &req);
+}
+
+static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
+{
+ struct rtl28xxu_req req;
+
+ if (reg < 0x3000)
+ req.index = CMD_USB_RD;
+ else if (reg < 0x4000)
+ req.index = CMD_SYS_RD;
+ else
+ req.index = CMD_IR_RD;
+
+ req.value = reg;
+ req.size = len;
+ req.data = val;
+
+ return rtl28xxu_ctrl_msg(d, &req);
+}
+
+static int rtl2831_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
+{
+ return rtl2831_wr_regs(d, reg, &val, 1);
+}
+
+static int rtl2831_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
+{
+ return rtl2831_rd_regs(d, reg, val, 1);
+}
+
+/* I2C */
+static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+ int num)
+{
+ int ret;
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ struct rtl28xxu_priv *priv = d->priv;
+ struct rtl28xxu_req req;
+
+ /*
+ * It is not known which are real I2C bus xfer limits, but testing
+ * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
+ * TODO: find out RTL2832U lens
+ */
+
+ /*
+ * I2C adapter logic looks rather complicated due to fact it handles
+ * three different access methods. Those methods are;
+ * 1) integrated demod access
+ * 2) old I2C access
+ * 3) new I2C access
+ *
+ * Used method is selected in order 1, 2, 3. Method 3 can handle all
+ * requests but there is two reasons why not use it always;
+ * 1) It is most expensive, usually two USB messages are needed
+ * 2) At least RTL2831U does not support it
+ *
+ * Method 3 is needed in case of I2C write+read (typical register read)
+ * where write is more than one byte.
+ */
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
+ (msg[1].flags & I2C_M_RD)) {
+ if (msg[0].len > 24 || msg[1].len > 24) {
+ /* TODO: check msg[0].len max */
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ } else if (msg[0].addr == 0x10) {
+ /* method 1 - integrated demod */
+ req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
+ req.index = CMD_DEMOD_RD | priv->page;
+ req.size = msg[1].len;
+ req.data = &msg[1].buf[0];
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ } else if (msg[0].len < 2) {
+ /* method 2 - old I2C */
+ req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
+ req.index = CMD_I2C_RD;
+ req.size = msg[1].len;
+ req.data = &msg[1].buf[0];
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ } else {
+ /* method 3 - new I2C */
+ req.value = (msg[0].addr << 1);
+ req.index = CMD_I2C_DA_WR;
+ req.size = msg[0].len;
+ req.data = msg[0].buf;
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ if (ret)
+ goto err_mutex_unlock;
+
+ req.value = (msg[0].addr << 1);
+ req.index = CMD_I2C_DA_RD;
+ req.size = msg[1].len;
+ req.data = msg[1].buf;
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ }
+ } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
+ if (msg[0].len > 22) {
+ /* TODO: check msg[0].len max */
+ ret = -EOPNOTSUPP;
+ goto err_mutex_unlock;
+ } else if (msg[0].addr == 0x10) {
+ /* method 1 - integrated demod */
+ if (msg[0].buf[0] == 0x00) {
+ /* save demod page for later demod access */
+ priv->page = msg[0].buf[1];
+ ret = 0;
+ } else {
+ req.value = (msg[0].buf[0] << 8) |
+ (msg[0].addr << 1);
+ req.index = CMD_DEMOD_WR | priv->page;
+ req.size = msg[0].len-1;
+ req.data = &msg[0].buf[1];
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ }
+ } else if (msg[0].len < 23) {
+ /* method 2 - old I2C */
+ req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
+ req.index = CMD_I2C_WR;
+ req.size = msg[0].len-1;
+ req.data = &msg[0].buf[1];
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ } else {
+ /* method 3 - new I2C */
+ req.value = (msg[0].addr << 1);
+ req.index = CMD_I2C_DA_WR;
+ req.size = msg[0].len;
+ req.data = msg[0].buf;
+ ret = rtl28xxu_ctrl_msg(d, &req);
+ }
+ } else {
+ ret = -EINVAL;
+ }
+
+err_mutex_unlock:
+ mutex_unlock(&d->i2c_mutex);
+
+ return ret ? ret : num;
+}
+
+static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm rtl28xxu_i2c_algo = {
+ .master_xfer = rtl28xxu_i2c_xfer,
+ .functionality = rtl28xxu_i2c_func,
+};
+
+static struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
+ .i2c_addr = 0x10, /* 0x20 */
+ .xtal = 28800000,
+ .ts_mode = 0,
+ .spec_inv = 1,
+ .if_dvbt = 36150000,
+ .vtop = 0x20,
+ .krf = 0x04,
+ .agc_targ_val = 0x2d,
+
+};
+
+static struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
+ .i2c_addr = 0x10, /* 0x20 */
+ .xtal = 28800000,
+ .ts_mode = 0,
+ .spec_inv = 1,
+ .if_dvbt = 36125000,
+ .vtop = 0x20,
+ .krf = 0x04,
+ .agc_targ_val = 0x2d,
+};
+
+static struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
+ .i2c_addr = 0x10, /* 0x20 */
+ .xtal = 28800000,
+ .ts_mode = 0,
+ .spec_inv = 0,
+ .if_dvbt = 4570000,
+ .vtop = 0x3f,
+ .krf = 0x04,
+ .agc_targ_val = 0x3e,
+};
+
+static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ struct rtl28xxu_priv *priv = adap->dev->priv;
+ u8 buf[1];
+ struct rtl2830_config *rtl2830_config;
+ /* open RTL2831U/RTL2830 I2C gate */
+ struct rtl28xxu_req req_gate = { 0x0120, 0x0011, 0x0001, "\x08" };
+ /* for MT2060 tuner probe */
+ struct rtl28xxu_req req_mt2060 = { 0x00c0, CMD_I2C_RD, 1, buf };
+ /* for QT1010 tuner probe */
+ struct rtl28xxu_req req_qt1010 = { 0x0fc4, CMD_I2C_RD, 1, buf };
+
+ deb_info("%s:\n", __func__);
+
+ /*
+ * RTL2831U GPIOs
+ * =========================================================
+ * GPIO0 | tuner#0 | 0 off | 1 on | MXL5005S (?)
+ * GPIO2 | LED | 0 off | 1 on |
+ * GPIO4 | tuner#1 | 0 on | 1 off | MT2060
+ */
+
+ /* GPIO direction */
+ ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a);
+ if (ret)
+ goto err;
+
+ /* enable as output GPIO0, GPIO2, GPIO4 */
+ ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15);
+ if (ret)
+ goto err;
+
+ /*
+ * Probe used tuner. We need to know used tuner before demod attach
+ * since there is some demod params needed to set according to tuner.
+ */
+
+ /* open demod I2C gate */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate);
+ if (ret)
+ goto err;
+
+ /* check QT1010 ID(?) register; reg=0f val=2c */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_qt1010);
+ if (ret == 0 && buf[0] == 0x2c) {
+ priv->tuner = TUNER_RTL2830_QT1010;
+ rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
+ deb_info("%s: QT1010\n", __func__);
+ goto found;
+ } else {
+ deb_info("%s: QT1010 probe failed=%d - %02x\n",
+ __func__, ret, buf[0]);
+ }
+
+ /* open demod I2C gate */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate);
+ if (ret)
+ goto err;
+
+ /* check MT2060 ID register; reg=00 val=63 */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_mt2060);
+ if (ret == 0 && buf[0] == 0x63) {
+ priv->tuner = TUNER_RTL2830_MT2060;
+ rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
+ deb_info("%s: MT2060\n", __func__);
+ goto found;
+ } else {
+ deb_info("%s: MT2060 probe failed=%d - %02x\n",
+ __func__, ret, buf[0]);
+ }
+
+ /* assume MXL5005S */
+ ret = 0;
+ priv->tuner = TUNER_RTL2830_MXL5005S;
+ rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
+ deb_info("%s: MXL5005S\n", __func__);
+ goto found;
+
+found:
+ /* attach demodulator */
+ adap->fe_adap[0].fe = dvb_attach(rtl2830_attach, rtl2830_config,
+ &adap->dev->i2c_adap);
+ if (adap->fe_adap[0].fe == NULL) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ struct rtl28xxu_priv *priv = adap->dev->priv;
+ u8 buf[1];
+ /* open RTL2832U/RTL2832 I2C gate */
+ struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
+ /* close RTL2832U/RTL2832 I2C gate */
+ struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
+ /* for FC2580 tuner probe */
+ struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
+
+ deb_info("%s:\n", __func__);
+
+ /* GPIO direction */
+ ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a);
+ if (ret)
+ goto err;
+
+ /* enable as output GPIO0, GPIO2, GPIO4 */
+ ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15);
+ if (ret)
+ goto err;
+
+ ret = rtl2831_wr_reg(adap->dev, SYS_DEMOD_CTL, 0xe8);
+ if (ret)
+ goto err;
+
+ /*
+ * Probe used tuner. We need to know used tuner before demod attach
+ * since there is some demod params needed to set according to tuner.
+ */
+
+ /* open demod I2C gate */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_open);
+ if (ret)
+ goto err;
+
+ /* check FC2580 ID register; reg=01 val=56 */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc2580);
+ if (ret == 0 && buf[0] == 0x56) {
+ priv->tuner = TUNER_RTL2832_FC2580;
+ deb_info("%s: FC2580\n", __func__);
+ goto found;
+ } else {
+ deb_info("%s: FC2580 probe failed=%d - %02x\n",
+ __func__, ret, buf[0]);
+ }
+
+ /* close demod I2C gate */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close);
+ if (ret)
+ goto err;
+
+ /* tuner not found */
+ ret = -ENODEV;
+ goto err;
+
+found:
+ /* close demod I2C gate */
+ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close);
+ if (ret)
+ goto err;
+
+ /* attach demodulator */
+ /* TODO: */
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static struct qt1010_config rtl28xxu_qt1010_config = {
+ .i2c_address = 0x62, /* 0xc4 */
+};
+
+static struct mt2060_config rtl28xxu_mt2060_config = {
+ .i2c_address = 0x60, /* 0xc0 */
+ .clock_out = 0,
+};
+
+static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
+ .i2c_address = 0x63, /* 0xc6 */
+ .if_freq = IF_FREQ_4570000HZ,
+ .xtal_freq = CRYSTAL_FREQ_16000000HZ,
+ .agc_mode = MXL_SINGLE_AGC,
+ .tracking_filter = MXL_TF_C_H,
+ .rssi_enable = MXL_RSSI_ENABLE,
+ .cap_select = MXL_CAP_SEL_ENABLE,
+ .div_out = MXL_DIV_OUT_4,
+ .clock_out = MXL_CLOCK_OUT_DISABLE,
+ .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
+ .top = MXL5005S_TOP_25P2,
+ .mod_mode = MXL_DIGITAL_MODE,
+ .if_mode = MXL_ZERO_IF,
+ .AgcMasterByte = 0x00,
+};
+
+static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ struct rtl28xxu_priv *priv = adap->dev->priv;
+ struct i2c_adapter *rtl2830_tuner_i2c;
+ struct dvb_frontend *fe;
+
+ deb_info("%s:\n", __func__);
+
+ /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
+ rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe_adap[0].fe);
+
+ switch (priv->tuner) {
+ case TUNER_RTL2830_QT1010:
+ fe = dvb_attach(qt1010_attach, adap->fe_adap[0].fe,
+ rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
+ break;
+ case TUNER_RTL2830_MT2060:
+ fe = dvb_attach(mt2060_attach, adap->fe_adap[0].fe,
+ rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
+ 1220);
+ break;
+ case TUNER_RTL2830_MXL5005S:
+ fe = dvb_attach(mxl5005s_attach, adap->fe_adap[0].fe,
+ rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
+ break;
+ default:
+ fe = NULL;
+ err("unknown tuner=%d", priv->tuner);
+ }
+
+ if (fe == NULL) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ return 0;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ struct rtl28xxu_priv *priv = adap->dev->priv;
+ struct dvb_frontend *fe;
+
+ deb_info("%s:\n", __func__);
+
+ switch (priv->tuner) {
+ case TUNER_RTL2832_FC2580:
+ /* TODO: */
+ fe = NULL;
+ break;
+ default:
+ fe = NULL;
+ err("unknown tuner=%d", priv->tuner);
+ }
+
+ if (fe == NULL) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ return 0;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl28xxu_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff)
+{
+ int ret;
+ u8 buf[2], gpio;
+
+ deb_info("%s: onoff=%d\n", __func__, onoff);
+
+ ret = rtl2831_rd_reg(adap->dev, SYS_GPIO_OUT_VAL, &gpio);
+ if (ret)
+ goto err;
+
+ if (onoff) {
+ buf[0] = 0x00;
+ buf[1] = 0x00;
+ gpio |= 0x04; /* LED on */
+ } else {
+ buf[0] = 0x10; /* stall EPA */
+ buf[1] = 0x02; /* reset EPA */
+ gpio &= (~0x04); /* LED off */
+ }
+
+ ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, gpio);
+ if (ret)
+ goto err;
+
+ ret = rtl2831_wr_regs(adap->dev, USB_EPA_CTL, buf, 2);
+ if (ret)
+ goto err;
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+ int ret;
+ u8 gpio, sys0;
+
+ deb_info("%s: onoff=%d\n", __func__, onoff);
+
+ /* demod adc */
+ ret = rtl2831_rd_reg(d, SYS_SYS0, &sys0);
+ if (ret)
+ goto err;
+
+ /* tuner power, read GPIOs */
+ ret = rtl2831_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
+ if (ret)
+ goto err;
+
+ deb_info("%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__, sys0, gpio);
+
+ if (onoff) {
+ gpio |= 0x01; /* GPIO0 = 1 */
+ gpio &= (~0x10); /* GPIO4 = 0 */
+ sys0 = sys0 & 0x0f;
+ sys0 |= 0xe0;
+ } else {
+ gpio &= (~0x01); /* GPIO0 = 0 */
+ gpio |= 0x10; /* GPIO4 = 1 */
+ sys0 = sys0 & (~0xc0);
+ }
+
+ deb_info("%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__, sys0, gpio);
+
+ /* demod adc */
+ ret = rtl2831_wr_reg(d, SYS_SYS0, sys0);
+ if (ret)
+ goto err;
+
+ /* tuner power, write GPIOs */
+ ret = rtl2831_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
+ if (ret)
+ goto err;
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl2831u_rc_query(struct dvb_usb_device *d)
+{
+ int ret, i;
+ struct rtl28xxu_priv *priv = d->priv;
+ u8 buf[5];
+ u32 rc_code;
+ struct rtl28xxu_reg_val rc_nec_tab[] = {
+ { 0x3033, 0x80 },
+ { 0x3020, 0x43 },
+ { 0x3021, 0x16 },
+ { 0x3022, 0x16 },
+ { 0x3023, 0x5a },
+ { 0x3024, 0x2d },
+ { 0x3025, 0x16 },
+ { 0x3026, 0x01 },
+ { 0x3028, 0xb0 },
+ { 0x3029, 0x04 },
+ { 0x302c, 0x88 },
+ { 0x302e, 0x13 },
+ { 0x3030, 0xdf },
+ { 0x3031, 0x05 },
+ };
+
+ /* init remote controller */
+ if (!priv->rc_active) {
+ for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
+ ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg,
+ rc_nec_tab[i].val);
+ if (ret)
+ goto err;
+ }
+ priv->rc_active = true;
+ }
+
+ ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
+ if (ret)
+ goto err;
+
+ if (buf[4] & 0x01) {
+ if (buf[2] == (u8) ~buf[3]) {
+ if (buf[0] == (u8) ~buf[1]) {
+ /* NEC standard (16 bit) */
+ rc_code = buf[0] << 8 | buf[2];
+ } else {
+ /* NEC extended (24 bit) */
+ rc_code = buf[0] << 16 |
+ buf[1] << 8 | buf[2];
+ }
+ } else {
+ /* NEC full (32 bit) */
+ rc_code = buf[0] << 24 | buf[1] << 16 |
+ buf[2] << 8 | buf[3];
+ }
+
+ rc_keydown(d->rc_dev, rc_code, 0);
+
+ ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1);
+ if (ret)
+ goto err;
+
+ /* repeated intentionally to avoid extra keypress */
+ ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1);
+ if (ret)
+ goto err;
+ }
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int rtl2832u_rc_query(struct dvb_usb_device *d)
+{
+ int ret, i;
+ struct rtl28xxu_priv *priv = d->priv;
+ u8 buf[128];
+ int len;
+ struct rtl28xxu_reg_val rc_nec_tab[] = {
+ { IR_RX_CTRL, 0x20 },
+ { IR_RX_BUF_CTRL, 0x80 },
+ { IR_RX_IF, 0xff },
+ { IR_RX_IE, 0xff },
+ { IR_MAX_DURATION0, 0xd0 },
+ { IR_MAX_DURATION1, 0x07 },
+ { IR_IDLE_LEN0, 0xc0 },
+ { IR_IDLE_LEN1, 0x00 },
+ { IR_GLITCH_LEN, 0x03 },
+ { IR_RX_CLK, 0x09 },
+ { IR_RX_CFG, 0x1c },
+ { IR_MAX_H_TOL_LEN, 0x1e },
+ { IR_MAX_L_TOL_LEN, 0x1e },
+ { IR_RX_CTRL, 0x80 },
+ };
+
+ /* init remote controller */
+ if (!priv->rc_active) {
+ for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
+ ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg,
+ rc_nec_tab[i].val);
+ if (ret)
+ goto err;
+ }
+ priv->rc_active = true;
+ }
+
+ ret = rtl2831_rd_reg(d, IR_RX_IF, &buf[0]);
+ if (ret)
+ goto err;
+
+ if (buf[0] != 0x83)
+ goto exit;
+
+ ret = rtl2831_rd_reg(d, IR_RX_BC, &buf[0]);
+ if (ret)
+ goto err;
+
+ len = buf[0];
+ ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
+
+ /* TODO: pass raw IR to Kernel IR decoder */
+
+ ret = rtl2831_wr_reg(d, IR_RX_IF, 0x03);
+ ret = rtl2831_wr_reg(d, IR_RX_BUF_CTRL, 0x80);
+ ret = rtl2831_wr_reg(d, IR_RX_CTRL, 0x80);
+
+exit:
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+enum rtl28xxu_usb_table_entry {
+ RTL2831U_0BDA_2831,
+ RTL2831U_14AA_0160,
+ RTL2831U_14AA_0161,
+};
+
+static struct usb_device_id rtl28xxu_table[] = {
+ /* RTL2831U */
+ [RTL2831U_0BDA_2831] = {
+ USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U)},
+ [RTL2831U_14AA_0160] = {
+ USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT)},
+ [RTL2831U_14AA_0161] = {
+ USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2)},
+
+ /* RTL2832U */
+ {} /* terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, rtl28xxu_table);
+
+static struct dvb_usb_device_properties rtl28xxu_properties[] = {
+ {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .no_reconnect = 1,
+
+ .size_of_priv = sizeof(struct rtl28xxu_priv),
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {
+ {
+ .frontend_attach = rtl2831u_frontend_attach,
+ .tuner_attach = rtl2831u_tuner_attach,
+ .streaming_ctrl = rtl28xxu_streaming_ctrl,
+ .stream = {
+ .type = USB_BULK,
+ .count = 6,
+ .endpoint = 0x81,
+ .u = {
+ .bulk = {
+ .buffersize = 8*512,
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+
+ .power_ctrl = rtl28xxu_power_ctrl,
+
+ .rc.core = {
+ .protocol = RC_TYPE_NEC,
+ .module_name = "rtl28xxu",
+ .rc_query = rtl2831u_rc_query,
+ .rc_interval = 400,
+ .allowed_protos = RC_TYPE_NEC,
+ .rc_codes = RC_MAP_EMPTY,
+ },
+
+ .i2c_algo = &rtl28xxu_i2c_algo,
+
+ .num_device_descs = 2,
+ .devices = {
+ {
+ .name = "Realtek RTL2831U reference design",
+ .warm_ids = {
+ &rtl28xxu_table[RTL2831U_0BDA_2831],
+ },
+ },
+ {
+ .name = "Freecom USB2.0 DVB-T",
+ .warm_ids = {
+ &rtl28xxu_table[RTL2831U_14AA_0160],
+ &rtl28xxu_table[RTL2831U_14AA_0161],
+ },
+ },
+ }
+ },
+ {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .no_reconnect = 1,
+
+ .size_of_priv = sizeof(struct rtl28xxu_priv),
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {
+ {
+ .frontend_attach = rtl2832u_frontend_attach,
+ .tuner_attach = rtl2832u_tuner_attach,
+ .streaming_ctrl = rtl28xxu_streaming_ctrl,
+ .stream = {
+ .type = USB_BULK,
+ .count = 6,
+ .endpoint = 0x81,
+ .u = {
+ .bulk = {
+ .buffersize = 8*512,
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+
+ .power_ctrl = rtl28xxu_power_ctrl,
+
+ .rc.core = {
+ .protocol = RC_TYPE_NEC,
+ .module_name = "rtl28xxu",
+ .rc_query = rtl2832u_rc_query,
+ .rc_interval = 400,
+ .allowed_protos = RC_TYPE_NEC,
+ .rc_codes = RC_MAP_EMPTY,
+ },
+
+ .i2c_algo = &rtl28xxu_i2c_algo,
+
+ .num_device_descs = 0, /* disabled as no support for RTL2832 */
+ .devices = {
+ {
+ .name = "Realtek RTL2832U reference design",
+ },
+ }
+ },
+
+};
+
+static int rtl28xxu_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int ret, i;
+ int properties_count = ARRAY_SIZE(rtl28xxu_properties);
+ struct dvb_usb_device *d;
+
+ deb_info("%s: interface=%d\n", __func__,
+ intf->cur_altsetting->desc.bInterfaceNumber);
+
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return 0;
+
+ for (i = 0; i < properties_count; i++) {
+ ret = dvb_usb_device_init(intf, &rtl28xxu_properties[i],
+ THIS_MODULE, &d, adapter_nr);
+ if (ret == 0 || ret != -ENODEV)
+ break;
+ }
+
+ if (ret)
+ goto err;
+
+ /* init USB endpoints */
+ ret = rtl2831_wr_reg(d, USB_SYSCTL_0, 0x09);
+ if (ret)
+ goto err;
+
+ ret = rtl2831_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
+ if (ret)
+ goto err;
+
+ ret = rtl2831_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
+ if (ret)
+ goto err;
+
+ return ret;
+err:
+ deb_info("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static struct usb_driver rtl28xxu_driver = {
+ .name = "dvb_usb_rtl28xxu",
+ .probe = rtl28xxu_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = rtl28xxu_table,
+};
+
+/* module stuff */
+static int __init rtl28xxu_module_init(void)
+{
+ int ret;
+
+ deb_info("%s:\n", __func__);
+
+ ret = usb_register(&rtl28xxu_driver);
+ if (ret)
+ err("usb_register failed=%d", ret);
+
+ return ret;
+}
+
+static void __exit rtl28xxu_module_exit(void)
+{
+ deb_info("%s:\n", __func__);
+
+ /* deregister this driver from the USB subsystem */
+ usb_deregister(&rtl28xxu_driver);
+}
+
+module_init(rtl28xxu_module_init);
+module_exit(rtl28xxu_module_exit);
+
+MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 04:19:30 +0000