Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Afatech AF9035 DVB USB driver
0004  *
0005  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
0006  * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
0007  */
0008 
0009 #include "af9035.h"
0010 
0011 /* Max transfer size done by I2C transfer functions */
0012 #define MAX_XFER_SIZE  64
0013 
0014 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
0015 
0016 static u16 af9035_checksum(const u8 *buf, size_t len)
0017 {
0018     size_t i;
0019     u16 checksum = 0;
0020 
0021     for (i = 1; i < len; i++) {
0022         if (i % 2)
0023             checksum += buf[i] << 8;
0024         else
0025             checksum += buf[i];
0026     }
0027     checksum = ~checksum;
0028 
0029     return checksum;
0030 }
0031 
0032 static int af9035_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
0033 {
0034 #define REQ_HDR_LEN 4 /* send header size */
0035 #define ACK_HDR_LEN 3 /* rece header size */
0036 #define CHECKSUM_LEN 2
0037 #define USB_TIMEOUT 2000
0038     struct state *state = d_to_priv(d);
0039     struct usb_interface *intf = d->intf;
0040     int ret, wlen, rlen;
0041     u16 checksum, tmp_checksum;
0042 
0043     mutex_lock(&d->usb_mutex);
0044 
0045     /* buffer overflow check */
0046     if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
0047             req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
0048         dev_err(&intf->dev, "too much data wlen=%d rlen=%d\n",
0049             req->wlen, req->rlen);
0050         ret = -EINVAL;
0051         goto exit;
0052     }
0053 
0054     state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
0055     state->buf[1] = req->mbox;
0056     state->buf[2] = req->cmd;
0057     state->buf[3] = state->seq++;
0058     memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
0059 
0060     wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
0061     rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
0062 
0063     /* calc and add checksum */
0064     checksum = af9035_checksum(state->buf, state->buf[0] - 1);
0065     state->buf[state->buf[0] - 1] = (checksum >> 8);
0066     state->buf[state->buf[0] - 0] = (checksum & 0xff);
0067 
0068     /* no ack for these packets */
0069     if (req->cmd == CMD_FW_DL)
0070         rlen = 0;
0071 
0072     ret = dvb_usbv2_generic_rw_locked(d,
0073             state->buf, wlen, state->buf, rlen);
0074     if (ret)
0075         goto exit;
0076 
0077     /* no ack for those packets */
0078     if (req->cmd == CMD_FW_DL)
0079         goto exit;
0080 
0081     /* verify checksum */
0082     checksum = af9035_checksum(state->buf, rlen - 2);
0083     tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
0084     if (tmp_checksum != checksum) {
0085         dev_err(&intf->dev, "command=%02x checksum mismatch (%04x != %04x)\n",
0086             req->cmd, tmp_checksum, checksum);
0087         ret = -EIO;
0088         goto exit;
0089     }
0090 
0091     /* check status */
0092     if (state->buf[2]) {
0093         /* fw returns status 1 when IR code was not received */
0094         if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
0095             ret = 1;
0096             goto exit;
0097         }
0098 
0099         dev_dbg(&intf->dev, "command=%02x failed fw error=%d\n",
0100             req->cmd, state->buf[2]);
0101         ret = -EIO;
0102         goto exit;
0103     }
0104 
0105     /* read request, copy returned data to return buf */
0106     if (req->rlen)
0107         memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
0108 exit:
0109     mutex_unlock(&d->usb_mutex);
0110     return ret;
0111 }
0112 
0113 /* write multiple registers */
0114 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
0115 {
0116     struct usb_interface *intf = d->intf;
0117     u8 wbuf[MAX_XFER_SIZE];
0118     u8 mbox = (reg >> 16) & 0xff;
0119     struct usb_req req = { CMD_MEM_WR, mbox, 6 + len, wbuf, 0, NULL };
0120 
0121     if (6 + len > sizeof(wbuf)) {
0122         dev_warn(&intf->dev, "i2c wr: len=%d is too big!\n", len);
0123         return -EOPNOTSUPP;
0124     }
0125 
0126     wbuf[0] = len;
0127     wbuf[1] = 2;
0128     wbuf[2] = 0;
0129     wbuf[3] = 0;
0130     wbuf[4] = (reg >> 8) & 0xff;
0131     wbuf[5] = (reg >> 0) & 0xff;
0132     memcpy(&wbuf[6], val, len);
0133 
0134     return af9035_ctrl_msg(d, &req);
0135 }
0136 
0137 /* read multiple registers */
0138 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
0139 {
0140     u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
0141     u8 mbox = (reg >> 16) & 0xff;
0142     struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
0143 
0144     return af9035_ctrl_msg(d, &req);
0145 }
0146 
0147 /* write single register */
0148 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
0149 {
0150     return af9035_wr_regs(d, reg, &val, 1);
0151 }
0152 
0153 /* read single register */
0154 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
0155 {
0156     return af9035_rd_regs(d, reg, val, 1);
0157 }
0158 
0159 /* write single register with mask */
0160 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
0161         u8 mask)
0162 {
0163     int ret;
0164     u8 tmp;
0165 
0166     /* no need for read if whole reg is written */
0167     if (mask != 0xff) {
0168         ret = af9035_rd_regs(d, reg, &tmp, 1);
0169         if (ret)
0170             return ret;
0171 
0172         val &= mask;
0173         tmp &= ~mask;
0174         val |= tmp;
0175     }
0176 
0177     return af9035_wr_regs(d, reg, &val, 1);
0178 }
0179 
0180 static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type,
0181         u8 addr, void *platform_data, struct i2c_adapter *adapter)
0182 {
0183     int ret, num;
0184     struct state *state = d_to_priv(d);
0185     struct usb_interface *intf = d->intf;
0186     struct i2c_client *client;
0187     struct i2c_board_info board_info = {
0188         .addr = addr,
0189         .platform_data = platform_data,
0190     };
0191 
0192     strscpy(board_info.type, type, I2C_NAME_SIZE);
0193 
0194     /* find first free client */
0195     for (num = 0; num < AF9035_I2C_CLIENT_MAX; num++) {
0196         if (state->i2c_client[num] == NULL)
0197             break;
0198     }
0199 
0200     dev_dbg(&intf->dev, "num=%d\n", num);
0201 
0202     if (num == AF9035_I2C_CLIENT_MAX) {
0203         dev_err(&intf->dev, "I2C client out of index\n");
0204         ret = -ENODEV;
0205         goto err;
0206     }
0207 
0208     request_module("%s", board_info.type);
0209 
0210     /* register I2C device */
0211     client = i2c_new_client_device(adapter, &board_info);
0212     if (!i2c_client_has_driver(client)) {
0213         dev_err(&intf->dev, "failed to bind i2c device to %s driver\n", type);
0214         ret = -ENODEV;
0215         goto err;
0216     }
0217 
0218     /* increase I2C driver usage count */
0219     if (!try_module_get(client->dev.driver->owner)) {
0220         i2c_unregister_device(client);
0221         ret = -ENODEV;
0222         goto err;
0223     }
0224 
0225     state->i2c_client[num] = client;
0226     return 0;
0227 err:
0228     dev_dbg(&intf->dev, "failed=%d\n", ret);
0229     return ret;
0230 }
0231 
0232 static void af9035_del_i2c_dev(struct dvb_usb_device *d)
0233 {
0234     int num;
0235     struct state *state = d_to_priv(d);
0236     struct usb_interface *intf = d->intf;
0237     struct i2c_client *client;
0238 
0239     /* find last used client */
0240     num = AF9035_I2C_CLIENT_MAX;
0241     while (num--) {
0242         if (state->i2c_client[num] != NULL)
0243             break;
0244     }
0245 
0246     dev_dbg(&intf->dev, "num=%d\n", num);
0247 
0248     if (num == -1) {
0249         dev_err(&intf->dev, "I2C client out of index\n");
0250         goto err;
0251     }
0252 
0253     client = state->i2c_client[num];
0254 
0255     /* decrease I2C driver usage count */
0256     module_put(client->dev.driver->owner);
0257 
0258     /* unregister I2C device */
0259     i2c_unregister_device(client);
0260 
0261     state->i2c_client[num] = NULL;
0262     return;
0263 err:
0264     dev_dbg(&intf->dev, "failed\n");
0265 }
0266 
0267 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
0268         struct i2c_msg msg[], int num)
0269 {
0270     struct dvb_usb_device *d = i2c_get_adapdata(adap);
0271     struct state *state = d_to_priv(d);
0272     int ret;
0273 
0274     if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
0275         return -EAGAIN;
0276 
0277     /*
0278      * AF9035 I2C sub header is 5 bytes long. Meaning of those bytes are:
0279      * 0: data len
0280      * 1: I2C addr << 1
0281      * 2: reg addr len
0282      *    byte 3 and 4 can be used as reg addr
0283      * 3: reg addr MSB
0284      *    used when reg addr len is set to 2
0285      * 4: reg addr LSB
0286      *    used when reg addr len is set to 1 or 2
0287      *
0288      * For the simplify we do not use register addr at all.
0289      * NOTE: As a firmware knows tuner type there is very small possibility
0290      * there could be some tuner I2C hacks done by firmware and this may
0291      * lead problems if firmware expects those bytes are used.
0292      *
0293      * TODO: Here is few hacks. AF9035 chip integrates AF9033 demodulator.
0294      * IT9135 chip integrates AF9033 demodulator and RF tuner. For dual
0295      * tuner devices, there is also external AF9033 demodulator connected
0296      * via external I2C bus. All AF9033 demod I2C traffic, both single and
0297      * dual tuner configuration, is covered by firmware - actual USB IO
0298      * looks just like a memory access.
0299      * In case of IT913x chip, there is own tuner driver. It is implemented
0300      * currently as a I2C driver, even tuner IP block is likely build
0301      * directly into the demodulator memory space and there is no own I2C
0302      * bus. I2C subsystem does not allow register multiple devices to same
0303      * bus, having same slave address. Due to that we reuse demod address,
0304      * shifted by one bit, on that case.
0305      *
0306      * For IT930x we use a different command and the sub header is
0307      * different as well:
0308      * 0: data len
0309      * 1: I2C bus (0x03 seems to be only value used)
0310      * 2: I2C addr << 1
0311      */
0312 #define AF9035_IS_I2C_XFER_WRITE_READ(_msg, _num) \
0313     (_num == 2 && !(_msg[0].flags & I2C_M_RD) && (_msg[1].flags & I2C_M_RD))
0314 #define AF9035_IS_I2C_XFER_WRITE(_msg, _num) \
0315     (_num == 1 && !(_msg[0].flags & I2C_M_RD))
0316 #define AF9035_IS_I2C_XFER_READ(_msg, _num) \
0317     (_num == 1 && (_msg[0].flags & I2C_M_RD))
0318 
0319     if (AF9035_IS_I2C_XFER_WRITE_READ(msg, num)) {
0320         if (msg[0].len > 40 || msg[1].len > 40) {
0321             /* TODO: correct limits > 40 */
0322             ret = -EOPNOTSUPP;
0323         } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
0324                (msg[0].addr == state->af9033_i2c_addr[1])) {
0325             /* demod access via firmware interface */
0326             u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
0327                     msg[0].buf[2];
0328 
0329             if (msg[0].addr == state->af9033_i2c_addr[1])
0330                 reg |= 0x100000;
0331 
0332             ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
0333                     msg[1].len);
0334         } else if (state->no_read) {
0335             memset(msg[1].buf, 0, msg[1].len);
0336             ret = 0;
0337         } else {
0338             /* I2C write + read */
0339             u8 buf[MAX_XFER_SIZE];
0340             struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
0341                     buf, msg[1].len, msg[1].buf };
0342 
0343             if (state->chip_type == 0x9306) {
0344                 req.cmd = CMD_GENERIC_I2C_RD;
0345                 req.wlen = 3 + msg[0].len;
0346             }
0347             req.mbox |= ((msg[0].addr & 0x80)  >>  3);
0348 
0349             buf[0] = msg[1].len;
0350             if (state->chip_type == 0x9306) {
0351                 buf[1] = 0x03; /* I2C bus */
0352                 buf[2] = msg[0].addr << 1;
0353                 memcpy(&buf[3], msg[0].buf, msg[0].len);
0354             } else {
0355                 buf[1] = msg[0].addr << 1;
0356                 buf[3] = 0x00; /* reg addr MSB */
0357                 buf[4] = 0x00; /* reg addr LSB */
0358 
0359                 /* Keep prev behavior for write req len > 2*/
0360                 if (msg[0].len > 2) {
0361                     buf[2] = 0x00; /* reg addr len */
0362                     memcpy(&buf[5], msg[0].buf, msg[0].len);
0363 
0364                 /* Use reg addr fields if write req len <= 2 */
0365                 } else {
0366                     req.wlen = 5;
0367                     buf[2] = msg[0].len;
0368                     if (msg[0].len == 2) {
0369                         buf[3] = msg[0].buf[0];
0370                         buf[4] = msg[0].buf[1];
0371                     } else if (msg[0].len == 1) {
0372                         buf[4] = msg[0].buf[0];
0373                     }
0374                 }
0375             }
0376             ret = af9035_ctrl_msg(d, &req);
0377         }
0378     } else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) {
0379         if (msg[0].len > 40) {
0380             /* TODO: correct limits > 40 */
0381             ret = -EOPNOTSUPP;
0382         } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
0383                (msg[0].addr == state->af9033_i2c_addr[1])) {
0384             /* demod access via firmware interface */
0385             u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
0386                     msg[0].buf[2];
0387 
0388             if (msg[0].addr == state->af9033_i2c_addr[1])
0389                 reg |= 0x100000;
0390 
0391             ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
0392                                      &msg[0].buf[3],
0393                                      msg[0].len - 3)
0394                             : -EOPNOTSUPP;
0395         } else {
0396             /* I2C write */
0397             u8 buf[MAX_XFER_SIZE];
0398             struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
0399                     buf, 0, NULL };
0400 
0401             if (state->chip_type == 0x9306) {
0402                 req.cmd = CMD_GENERIC_I2C_WR;
0403                 req.wlen = 3 + msg[0].len;
0404             }
0405 
0406             req.mbox |= ((msg[0].addr & 0x80)  >>  3);
0407             buf[0] = msg[0].len;
0408             if (state->chip_type == 0x9306) {
0409                 buf[1] = 0x03; /* I2C bus */
0410                 buf[2] = msg[0].addr << 1;
0411                 memcpy(&buf[3], msg[0].buf, msg[0].len);
0412             } else {
0413                 buf[1] = msg[0].addr << 1;
0414                 buf[2] = 0x00; /* reg addr len */
0415                 buf[3] = 0x00; /* reg addr MSB */
0416                 buf[4] = 0x00; /* reg addr LSB */
0417                 memcpy(&buf[5], msg[0].buf, msg[0].len);
0418             }
0419             ret = af9035_ctrl_msg(d, &req);
0420         }
0421     } else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
0422         if (msg[0].len > 40) {
0423             /* TODO: correct limits > 40 */
0424             ret = -EOPNOTSUPP;
0425         } else if (state->no_read) {
0426             memset(msg[0].buf, 0, msg[0].len);
0427             ret = 0;
0428         } else {
0429             /* I2C read */
0430             u8 buf[5];
0431             struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
0432                         buf, msg[0].len, msg[0].buf };
0433 
0434             if (state->chip_type == 0x9306) {
0435                 req.cmd = CMD_GENERIC_I2C_RD;
0436                 req.wlen = 3;
0437             }
0438             req.mbox |= ((msg[0].addr & 0x80)  >>  3);
0439             buf[0] = msg[0].len;
0440             if (state->chip_type == 0x9306) {
0441                 buf[1] = 0x03; /* I2C bus */
0442                 buf[2] = msg[0].addr << 1;
0443             } else {
0444                 buf[1] = msg[0].addr << 1;
0445                 buf[2] = 0x00; /* reg addr len */
0446                 buf[3] = 0x00; /* reg addr MSB */
0447                 buf[4] = 0x00; /* reg addr LSB */
0448             }
0449             ret = af9035_ctrl_msg(d, &req);
0450         }
0451     } else {
0452         /*
0453          * We support only three kind of I2C transactions:
0454          * 1) 1 x write + 1 x read (repeated start)
0455          * 2) 1 x write
0456          * 3) 1 x read
0457          */
0458         ret = -EOPNOTSUPP;
0459     }
0460 
0461     mutex_unlock(&d->i2c_mutex);
0462 
0463     if (ret < 0)
0464         return ret;
0465     else
0466         return num;
0467 }
0468 
0469 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
0470 {
0471     return I2C_FUNC_I2C;
0472 }
0473 
0474 static struct i2c_algorithm af9035_i2c_algo = {
0475     .master_xfer = af9035_i2c_master_xfer,
0476     .functionality = af9035_i2c_functionality,
0477 };
0478 
0479 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
0480 {
0481     struct state *state = d_to_priv(d);
0482     struct usb_interface *intf = d->intf;
0483     int ret, i, ts_mode_invalid;
0484     unsigned int utmp, eeprom_addr;
0485     u8 tmp;
0486     u8 wbuf[1] = { 1 };
0487     u8 rbuf[4];
0488     struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
0489             sizeof(rbuf), rbuf };
0490 
0491     ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
0492     if (ret < 0)
0493         goto err;
0494 
0495     state->chip_version = rbuf[0];
0496     state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
0497 
0498     ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
0499     if (ret < 0)
0500         goto err;
0501 
0502     dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
0503          state->prechip_version, state->chip_version, state->chip_type);
0504 
0505     if (state->chip_type == 0x9135) {
0506         if (state->chip_version == 0x02) {
0507             *name = AF9035_FIRMWARE_IT9135_V2;
0508             utmp = 0x00461d;
0509         } else {
0510             *name = AF9035_FIRMWARE_IT9135_V1;
0511             utmp = 0x00461b;
0512         }
0513 
0514         /* Check if eeprom exists */
0515         ret = af9035_rd_reg(d, utmp, &tmp);
0516         if (ret < 0)
0517             goto err;
0518 
0519         if (tmp == 0x00) {
0520             dev_dbg(&intf->dev, "no eeprom\n");
0521             state->no_eeprom = true;
0522             goto check_firmware_status;
0523         }
0524 
0525         eeprom_addr = EEPROM_BASE_IT9135;
0526     } else if (state->chip_type == 0x9306) {
0527         *name = AF9035_FIRMWARE_IT9303;
0528         state->no_eeprom = true;
0529         goto check_firmware_status;
0530     } else {
0531         *name = AF9035_FIRMWARE_AF9035;
0532         eeprom_addr = EEPROM_BASE_AF9035;
0533     }
0534 
0535     /* Read and store eeprom */
0536     for (i = 0; i < 256; i += 32) {
0537         ret = af9035_rd_regs(d, eeprom_addr + i, &state->eeprom[i], 32);
0538         if (ret < 0)
0539             goto err;
0540     }
0541 
0542     dev_dbg(&intf->dev, "eeprom dump:\n");
0543     for (i = 0; i < 256; i += 16)
0544         dev_dbg(&intf->dev, "%*ph\n", 16, &state->eeprom[i]);
0545 
0546     /* check for dual tuner mode */
0547     tmp = state->eeprom[EEPROM_TS_MODE];
0548     ts_mode_invalid = 0;
0549     switch (tmp) {
0550     case 0:
0551         break;
0552     case 1:
0553     case 3:
0554         state->dual_mode = true;
0555         break;
0556     case 5:
0557         if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
0558             state->dual_mode = true;    /* AF9035 */
0559         else
0560             ts_mode_invalid = 1;
0561         break;
0562     default:
0563         ts_mode_invalid = 1;
0564     }
0565 
0566     dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
0567 
0568     if (ts_mode_invalid)
0569         dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
0570 
0571 check_firmware_status:
0572     ret = af9035_ctrl_msg(d, &req);
0573     if (ret < 0)
0574         goto err;
0575 
0576     dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
0577     if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
0578         ret = WARM;
0579     else
0580         ret = COLD;
0581 
0582     return ret;
0583 
0584 err:
0585     dev_dbg(&intf->dev, "failed=%d\n", ret);
0586 
0587     return ret;
0588 }
0589 
0590 static int af9035_download_firmware_old(struct dvb_usb_device *d,
0591         const struct firmware *fw)
0592 {
0593     struct usb_interface *intf = d->intf;
0594     int ret, i, j, len;
0595     u8 wbuf[1];
0596     struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
0597     struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
0598     u8 hdr_core;
0599     u16 hdr_addr, hdr_data_len, hdr_checksum;
0600     #define MAX_DATA 58
0601     #define HDR_SIZE 7
0602 
0603     /*
0604      * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
0605      *
0606      * byte 0: MCS 51 core
0607      *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
0608      *  address spaces
0609      * byte 1-2: Big endian destination address
0610      * byte 3-4: Big endian number of data bytes following the header
0611      * byte 5-6: Big endian header checksum, apparently ignored by the chip
0612      *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
0613      */
0614 
0615     for (i = fw->size; i > HDR_SIZE;) {
0616         hdr_core = fw->data[fw->size - i + 0];
0617         hdr_addr = fw->data[fw->size - i + 1] << 8;
0618         hdr_addr |= fw->data[fw->size - i + 2] << 0;
0619         hdr_data_len = fw->data[fw->size - i + 3] << 8;
0620         hdr_data_len |= fw->data[fw->size - i + 4] << 0;
0621         hdr_checksum = fw->data[fw->size - i + 5] << 8;
0622         hdr_checksum |= fw->data[fw->size - i + 6] << 0;
0623 
0624         dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
0625             hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
0626 
0627         if (((hdr_core != 1) && (hdr_core != 2)) ||
0628                 (hdr_data_len > i)) {
0629             dev_dbg(&intf->dev, "bad firmware\n");
0630             break;
0631         }
0632 
0633         /* download begin packet */
0634         req.cmd = CMD_FW_DL_BEGIN;
0635         ret = af9035_ctrl_msg(d, &req);
0636         if (ret < 0)
0637             goto err;
0638 
0639         /* download firmware packet(s) */
0640         for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
0641             len = j;
0642             if (len > MAX_DATA)
0643                 len = MAX_DATA;
0644             req_fw_dl.wlen = len;
0645             req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
0646                     HDR_SIZE + hdr_data_len - j];
0647             ret = af9035_ctrl_msg(d, &req_fw_dl);
0648             if (ret < 0)
0649                 goto err;
0650         }
0651 
0652         /* download end packet */
0653         req.cmd = CMD_FW_DL_END;
0654         ret = af9035_ctrl_msg(d, &req);
0655         if (ret < 0)
0656             goto err;
0657 
0658         i -= hdr_data_len + HDR_SIZE;
0659 
0660         dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
0661     }
0662 
0663     /* print warn if firmware is bad, continue and see what happens */
0664     if (i)
0665         dev_warn(&intf->dev, "bad firmware\n");
0666 
0667     return 0;
0668 
0669 err:
0670     dev_dbg(&intf->dev, "failed=%d\n", ret);
0671 
0672     return ret;
0673 }
0674 
0675 static int af9035_download_firmware_new(struct dvb_usb_device *d,
0676         const struct firmware *fw)
0677 {
0678     struct usb_interface *intf = d->intf;
0679     int ret, i, i_prev;
0680     struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
0681     #define HDR_SIZE 7
0682 
0683     /*
0684      * There seems to be following firmware header. Meaning of bytes 0-3
0685      * is unknown.
0686      *
0687      * 0: 3
0688      * 1: 0, 1
0689      * 2: 0
0690      * 3: 1, 2, 3
0691      * 4: addr MSB
0692      * 5: addr LSB
0693      * 6: count of data bytes ?
0694      */
0695     for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
0696         if (i == fw->size ||
0697                 (fw->data[i + 0] == 0x03 &&
0698                 (fw->data[i + 1] == 0x00 ||
0699                 fw->data[i + 1] == 0x01) &&
0700                 fw->data[i + 2] == 0x00)) {
0701             req_fw_dl.wlen = i - i_prev;
0702             req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
0703             i_prev = i;
0704             ret = af9035_ctrl_msg(d, &req_fw_dl);
0705             if (ret < 0)
0706                 goto err;
0707 
0708             dev_dbg(&intf->dev, "data uploaded=%d\n", i);
0709         }
0710     }
0711 
0712     return 0;
0713 
0714 err:
0715     dev_dbg(&intf->dev, "failed=%d\n", ret);
0716 
0717     return ret;
0718 }
0719 
0720 static int af9035_download_firmware(struct dvb_usb_device *d,
0721         const struct firmware *fw)
0722 {
0723     struct usb_interface *intf = d->intf;
0724     struct state *state = d_to_priv(d);
0725     int ret;
0726     u8 wbuf[1];
0727     u8 rbuf[4];
0728     u8 tmp;
0729     struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
0730     struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
0731 
0732     dev_dbg(&intf->dev, "\n");
0733 
0734     /*
0735      * In case of dual tuner configuration we need to do some extra
0736      * initialization in order to download firmware to slave demod too,
0737      * which is done by master demod.
0738      * Master feeds also clock and controls power via GPIO.
0739      */
0740     if (state->dual_mode) {
0741         /* configure gpioh1, reset & power slave demod */
0742         ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
0743         if (ret < 0)
0744             goto err;
0745 
0746         ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
0747         if (ret < 0)
0748             goto err;
0749 
0750         ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
0751         if (ret < 0)
0752             goto err;
0753 
0754         usleep_range(10000, 50000);
0755 
0756         ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
0757         if (ret < 0)
0758             goto err;
0759 
0760         /* tell the slave I2C address */
0761         tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
0762 
0763         /* Use default I2C address if eeprom has no address set */
0764         if (!tmp)
0765             tmp = 0x1d << 1; /* 8-bit format used by chip */
0766 
0767         if ((state->chip_type == 0x9135) ||
0768                 (state->chip_type == 0x9306)) {
0769             ret = af9035_wr_reg(d, 0x004bfb, tmp);
0770             if (ret < 0)
0771                 goto err;
0772         } else {
0773             ret = af9035_wr_reg(d, 0x00417f, tmp);
0774             if (ret < 0)
0775                 goto err;
0776 
0777             /* enable clock out */
0778             ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
0779             if (ret < 0)
0780                 goto err;
0781         }
0782     }
0783 
0784     if (fw->data[0] == 0x01)
0785         ret = af9035_download_firmware_old(d, fw);
0786     else
0787         ret = af9035_download_firmware_new(d, fw);
0788     if (ret < 0)
0789         goto err;
0790 
0791     /* firmware loaded, request boot */
0792     req.cmd = CMD_FW_BOOT;
0793     ret = af9035_ctrl_msg(d, &req);
0794     if (ret < 0)
0795         goto err;
0796 
0797     /* ensure firmware starts */
0798     wbuf[0] = 1;
0799     ret = af9035_ctrl_msg(d, &req_fw_ver);
0800     if (ret < 0)
0801         goto err;
0802 
0803     if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
0804         dev_err(&intf->dev, "firmware did not run\n");
0805         ret = -ENODEV;
0806         goto err;
0807     }
0808 
0809     dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
0810          rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
0811 
0812     return 0;
0813 
0814 err:
0815     dev_dbg(&intf->dev, "failed=%d\n", ret);
0816 
0817     return ret;
0818 }
0819 
0820 static int af9035_read_config(struct dvb_usb_device *d)
0821 {
0822     struct usb_interface *intf = d->intf;
0823     struct state *state = d_to_priv(d);
0824     int ret, i;
0825     u8 tmp;
0826     u16 tmp16;
0827 
0828     /* Demod I2C address */
0829     state->af9033_i2c_addr[0] = 0x1c;
0830     state->af9033_i2c_addr[1] = 0x1d;
0831     state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
0832     state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
0833     state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
0834     state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
0835     state->it930x_addresses = 0;
0836 
0837     if (state->chip_type == 0x9135) {
0838         /* feed clock for integrated RF tuner */
0839         state->af9033_config[0].dyn0_clk = true;
0840         state->af9033_config[1].dyn0_clk = true;
0841 
0842         if (state->chip_version == 0x02) {
0843             state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
0844             state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
0845         } else {
0846             state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
0847             state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
0848         }
0849 
0850         if (state->no_eeprom) {
0851             /* Remote controller to NEC polling by default */
0852             state->ir_mode = 0x05;
0853             state->ir_type = 0x00;
0854 
0855             goto skip_eeprom;
0856         }
0857     } else if (state->chip_type == 0x9306) {
0858         /*
0859          * IT930x is an USB bridge, only single demod-single tuner
0860          * configurations seen so far.
0861          */
0862         if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA) &&
0863             (le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_AVERMEDIA_TD310)) {
0864             state->it930x_addresses = 1;
0865         }
0866         return 0;
0867     }
0868 
0869     /* Remote controller */
0870     state->ir_mode = state->eeprom[EEPROM_IR_MODE];
0871     state->ir_type = state->eeprom[EEPROM_IR_TYPE];
0872 
0873     if (state->dual_mode) {
0874         /* Read 2nd demodulator I2C address. 8-bit format on eeprom */
0875         tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
0876         if (tmp)
0877             state->af9033_i2c_addr[1] = tmp >> 1;
0878 
0879         dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n",
0880             state->af9033_i2c_addr[1]);
0881     }
0882 
0883     for (i = 0; i < state->dual_mode + 1; i++) {
0884         unsigned int eeprom_offset = 0;
0885 
0886         /* tuner */
0887         tmp = state->eeprom[EEPROM_1_TUNER_ID + eeprom_offset];
0888         dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
0889 
0890         /* tuner sanity check */
0891         if (state->chip_type == 0x9135) {
0892             if (state->chip_version == 0x02) {
0893                 /* IT9135 BX (v2) */
0894                 switch (tmp) {
0895                 case AF9033_TUNER_IT9135_60:
0896                 case AF9033_TUNER_IT9135_61:
0897                 case AF9033_TUNER_IT9135_62:
0898                     state->af9033_config[i].tuner = tmp;
0899                     break;
0900                 }
0901             } else {
0902                 /* IT9135 AX (v1) */
0903                 switch (tmp) {
0904                 case AF9033_TUNER_IT9135_38:
0905                 case AF9033_TUNER_IT9135_51:
0906                 case AF9033_TUNER_IT9135_52:
0907                     state->af9033_config[i].tuner = tmp;
0908                     break;
0909                 }
0910             }
0911         } else {
0912             /* AF9035 */
0913             state->af9033_config[i].tuner = tmp;
0914         }
0915 
0916         if (state->af9033_config[i].tuner != tmp) {
0917             dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
0918                  i, tmp, state->af9033_config[i].tuner);
0919         }
0920 
0921         switch (state->af9033_config[i].tuner) {
0922         case AF9033_TUNER_TUA9001:
0923         case AF9033_TUNER_FC0011:
0924         case AF9033_TUNER_MXL5007T:
0925         case AF9033_TUNER_TDA18218:
0926         case AF9033_TUNER_FC2580:
0927         case AF9033_TUNER_FC0012:
0928             state->af9033_config[i].spec_inv = 1;
0929             break;
0930         case AF9033_TUNER_IT9135_38:
0931         case AF9033_TUNER_IT9135_51:
0932         case AF9033_TUNER_IT9135_52:
0933         case AF9033_TUNER_IT9135_60:
0934         case AF9033_TUNER_IT9135_61:
0935         case AF9033_TUNER_IT9135_62:
0936             break;
0937         default:
0938             dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
0939                  tmp);
0940         }
0941 
0942         /* disable dual mode if driver does not support it */
0943         if (i == 1)
0944             switch (state->af9033_config[i].tuner) {
0945             case AF9033_TUNER_FC0012:
0946             case AF9033_TUNER_IT9135_38:
0947             case AF9033_TUNER_IT9135_51:
0948             case AF9033_TUNER_IT9135_52:
0949             case AF9033_TUNER_IT9135_60:
0950             case AF9033_TUNER_IT9135_61:
0951             case AF9033_TUNER_IT9135_62:
0952             case AF9033_TUNER_MXL5007T:
0953                 break;
0954             default:
0955                 state->dual_mode = false;
0956                 dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
0957         }
0958 
0959         /* tuner IF frequency */
0960         tmp = state->eeprom[EEPROM_1_IF_L + eeprom_offset];
0961         tmp16 = tmp << 0;
0962         tmp = state->eeprom[EEPROM_1_IF_H + eeprom_offset];
0963         tmp16 |= tmp << 8;
0964         dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
0965 
0966         eeprom_offset += 0x10; /* shift for the 2nd tuner params */
0967     }
0968 
0969 skip_eeprom:
0970     /* get demod clock */
0971     ret = af9035_rd_reg(d, 0x00d800, &tmp);
0972     if (ret < 0)
0973         goto err;
0974 
0975     tmp = (tmp >> 0) & 0x0f;
0976 
0977     for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
0978         if (state->chip_type == 0x9135)
0979             state->af9033_config[i].clock = clock_lut_it9135[tmp];
0980         else
0981             state->af9033_config[i].clock = clock_lut_af9035[tmp];
0982     }
0983 
0984     state->no_read = false;
0985     /* Some MXL5007T devices cannot properly handle tuner I2C read ops. */
0986     if (state->af9033_config[0].tuner == AF9033_TUNER_MXL5007T &&
0987         le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA)
0988 
0989         switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
0990         case USB_PID_AVERMEDIA_A867:
0991         case USB_PID_AVERMEDIA_TWINSTAR:
0992             dev_info(&intf->dev,
0993                  "Device may have issues with I2C read operations. Enabling fix.\n");
0994             state->no_read = true;
0995             break;
0996         }
0997 
0998     return 0;
0999 
1000 err:
1001     dev_dbg(&intf->dev, "failed=%d\n", ret);
1002 
1003     return ret;
1004 }
1005 
1006 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
1007         int cmd, int arg)
1008 {
1009     struct usb_interface *intf = d->intf;
1010     int ret;
1011     u8 val;
1012 
1013     dev_dbg(&intf->dev, "cmd=%d arg=%d\n", cmd, arg);
1014 
1015     /*
1016      * CEN     always enabled by hardware wiring
1017      * RESETN  GPIOT3
1018      * RXEN    GPIOT2
1019      */
1020 
1021     switch (cmd) {
1022     case TUA9001_CMD_RESETN:
1023         if (arg)
1024             val = 0x00;
1025         else
1026             val = 0x01;
1027 
1028         ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
1029         if (ret < 0)
1030             goto err;
1031         break;
1032     case TUA9001_CMD_RXEN:
1033         if (arg)
1034             val = 0x01;
1035         else
1036             val = 0x00;
1037 
1038         ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
1039         if (ret < 0)
1040             goto err;
1041         break;
1042     }
1043 
1044     return 0;
1045 
1046 err:
1047     dev_dbg(&intf->dev, "failed=%d\n", ret);
1048 
1049     return ret;
1050 }
1051 
1052 
1053 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
1054         int cmd, int arg)
1055 {
1056     struct usb_interface *intf = d->intf;
1057     int ret;
1058 
1059     switch (cmd) {
1060     case FC0011_FE_CALLBACK_POWER:
1061         /* Tuner enable */
1062         ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
1063         if (ret < 0)
1064             goto err;
1065 
1066         ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
1067         if (ret < 0)
1068             goto err;
1069 
1070         ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
1071         if (ret < 0)
1072             goto err;
1073 
1074         /* LED */
1075         ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
1076         if (ret < 0)
1077             goto err;
1078 
1079         ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
1080         if (ret < 0)
1081             goto err;
1082 
1083         usleep_range(10000, 50000);
1084         break;
1085     case FC0011_FE_CALLBACK_RESET:
1086         ret = af9035_wr_reg(d, 0xd8e9, 1);
1087         if (ret < 0)
1088             goto err;
1089 
1090         ret = af9035_wr_reg(d, 0xd8e8, 1);
1091         if (ret < 0)
1092             goto err;
1093 
1094         ret = af9035_wr_reg(d, 0xd8e7, 1);
1095         if (ret < 0)
1096             goto err;
1097 
1098         usleep_range(10000, 20000);
1099 
1100         ret = af9035_wr_reg(d, 0xd8e7, 0);
1101         if (ret < 0)
1102             goto err;
1103 
1104         usleep_range(10000, 20000);
1105         break;
1106     default:
1107         ret = -EINVAL;
1108         goto err;
1109     }
1110 
1111     return 0;
1112 
1113 err:
1114     dev_dbg(&intf->dev, "failed=%d\n", ret);
1115 
1116     return ret;
1117 }
1118 
1119 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
1120 {
1121     struct state *state = d_to_priv(d);
1122 
1123     switch (state->af9033_config[0].tuner) {
1124     case AF9033_TUNER_FC0011:
1125         return af9035_fc0011_tuner_callback(d, cmd, arg);
1126     case AF9033_TUNER_TUA9001:
1127         return af9035_tua9001_tuner_callback(d, cmd, arg);
1128     default:
1129         break;
1130     }
1131 
1132     return 0;
1133 }
1134 
1135 static int af9035_frontend_callback(void *adapter_priv, int component,
1136                     int cmd, int arg)
1137 {
1138     struct i2c_adapter *adap = adapter_priv;
1139     struct dvb_usb_device *d = i2c_get_adapdata(adap);
1140     struct usb_interface *intf = d->intf;
1141 
1142     dev_dbg(&intf->dev, "component=%d cmd=%d arg=%d\n",
1143         component, cmd, arg);
1144 
1145     switch (component) {
1146     case DVB_FRONTEND_COMPONENT_TUNER:
1147         return af9035_tuner_callback(d, cmd, arg);
1148     default:
1149         break;
1150     }
1151 
1152     return 0;
1153 }
1154 
1155 static int af9035_get_adapter_count(struct dvb_usb_device *d)
1156 {
1157     struct state *state = d_to_priv(d);
1158 
1159     return state->dual_mode + 1;
1160 }
1161 
1162 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
1163 {
1164     struct state *state = adap_to_priv(adap);
1165     struct dvb_usb_device *d = adap_to_d(adap);
1166     struct usb_interface *intf = d->intf;
1167     int ret;
1168 
1169     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1170 
1171     if (!state->af9033_config[adap->id].tuner) {
1172         /* unsupported tuner */
1173         ret = -ENODEV;
1174         goto err;
1175     }
1176 
1177     state->af9033_config[adap->id].fe = &adap->fe[0];
1178     state->af9033_config[adap->id].ops = &state->ops;
1179     ret = af9035_add_i2c_dev(d, "af9033", state->af9033_i2c_addr[adap->id],
1180             &state->af9033_config[adap->id], &d->i2c_adap);
1181     if (ret)
1182         goto err;
1183 
1184     if (adap->fe[0] == NULL) {
1185         ret = -ENODEV;
1186         goto err;
1187     }
1188 
1189     /* disable I2C-gate */
1190     adap->fe[0]->ops.i2c_gate_ctrl = NULL;
1191     adap->fe[0]->callback = af9035_frontend_callback;
1192 
1193     return 0;
1194 
1195 err:
1196     dev_dbg(&intf->dev, "failed=%d\n", ret);
1197 
1198     return ret;
1199 }
1200 
1201 /*
1202  * The I2C speed register is calculated with:
1203  *  I2C speed register = (1000000000 / (24.4 * 16 * I2C_speed))
1204  *
1205  * The default speed register for it930x is 7, with means a
1206  * speed of ~366 kbps
1207  */
1208 #define I2C_SPEED_366K 7
1209 
1210 static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
1211 {
1212     struct state *state = adap_to_priv(adap);
1213     struct dvb_usb_device *d = adap_to_d(adap);
1214     struct usb_interface *intf = d->intf;
1215     int ret;
1216     struct si2168_config si2168_config;
1217     struct i2c_adapter *adapter;
1218 
1219     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1220 
1221     /* I2C master bus 2 clock speed 366k */
1222     ret = af9035_wr_reg(d, 0x00f6a7, I2C_SPEED_366K);
1223     if (ret < 0)
1224         goto err;
1225 
1226     /* I2C master bus 1,3 clock speed 366k */
1227     ret = af9035_wr_reg(d, 0x00f103, I2C_SPEED_366K);
1228     if (ret < 0)
1229         goto err;
1230 
1231     /* set gpio11 low */
1232     ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1233     if (ret < 0)
1234         goto err;
1235 
1236     ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1237     if (ret < 0)
1238         goto err;
1239 
1240     ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1241     if (ret < 0)
1242         goto err;
1243 
1244     /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1245     ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1246     if (ret < 0)
1247         goto err;
1248 
1249     ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1250     if (ret < 0)
1251         goto err;
1252 
1253     ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1254     if (ret < 0)
1255         goto err;
1256 
1257     msleep(200);
1258 
1259     ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1260     if (ret < 0)
1261         goto err;
1262 
1263     memset(&si2168_config, 0, sizeof(si2168_config));
1264     si2168_config.i2c_adapter = &adapter;
1265     si2168_config.fe = &adap->fe[0];
1266     si2168_config.ts_mode = SI2168_TS_SERIAL;
1267 
1268     state->af9033_config[adap->id].fe = &adap->fe[0];
1269     state->af9033_config[adap->id].ops = &state->ops;
1270     ret = af9035_add_i2c_dev(d, "si2168",
1271                  it930x_addresses_table[state->it930x_addresses].frontend_i2c_addr,
1272                  &si2168_config, &d->i2c_adap);
1273     if (ret)
1274         goto err;
1275 
1276     if (adap->fe[0] == NULL) {
1277         ret = -ENODEV;
1278         goto err;
1279     }
1280     state->i2c_adapter_demod = adapter;
1281 
1282     return 0;
1283 
1284 err:
1285     dev_dbg(&intf->dev, "failed=%d\n", ret);
1286 
1287     return ret;
1288 }
1289 
1290 static int af9035_frontend_detach(struct dvb_usb_adapter *adap)
1291 {
1292     struct state *state = adap_to_priv(adap);
1293     struct dvb_usb_device *d = adap_to_d(adap);
1294     struct usb_interface *intf = d->intf;
1295 
1296     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1297 
1298     if (adap->id == 1) {
1299         if (state->i2c_client[1])
1300             af9035_del_i2c_dev(d);
1301     } else if (adap->id == 0) {
1302         if (state->i2c_client[0])
1303             af9035_del_i2c_dev(d);
1304     }
1305 
1306     return 0;
1307 }
1308 
1309 static const struct fc0011_config af9035_fc0011_config = {
1310     .i2c_address = 0x60,
1311 };
1312 
1313 static struct mxl5007t_config af9035_mxl5007t_config[] = {
1314     {
1315         .xtal_freq_hz = MxL_XTAL_24_MHZ,
1316         .if_freq_hz = MxL_IF_4_57_MHZ,
1317         .invert_if = 0,
1318         .loop_thru_enable = 0,
1319         .clk_out_enable = 0,
1320         .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1321     }, {
1322         .xtal_freq_hz = MxL_XTAL_24_MHZ,
1323         .if_freq_hz = MxL_IF_4_57_MHZ,
1324         .invert_if = 0,
1325         .loop_thru_enable = 1,
1326         .clk_out_enable = 1,
1327         .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1328     }
1329 };
1330 
1331 static struct tda18218_config af9035_tda18218_config = {
1332     .i2c_address = 0x60,
1333     .i2c_wr_max = 21,
1334 };
1335 
1336 static const struct fc0012_config af9035_fc0012_config[] = {
1337     {
1338         .i2c_address = 0x63,
1339         .xtal_freq = FC_XTAL_36_MHZ,
1340         .dual_master = true,
1341         .loop_through = true,
1342         .clock_out = true,
1343     }, {
1344         .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1345         .xtal_freq = FC_XTAL_36_MHZ,
1346         .dual_master = true,
1347     }
1348 };
1349 
1350 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1351 {
1352     struct state *state = adap_to_priv(adap);
1353     struct dvb_usb_device *d = adap_to_d(adap);
1354     struct usb_interface *intf = d->intf;
1355     int ret;
1356     struct dvb_frontend *fe;
1357     struct i2c_msg msg[1];
1358     u8 tuner_addr;
1359 
1360     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1361 
1362     /*
1363      * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1364      * to carry info about used I2C bus for dual tuner configuration.
1365      */
1366 
1367     switch (state->af9033_config[adap->id].tuner) {
1368     case AF9033_TUNER_TUA9001: {
1369         struct tua9001_platform_data tua9001_pdata = {
1370             .dvb_frontend = adap->fe[0],
1371         };
1372 
1373         /*
1374          * AF9035 gpiot3 = TUA9001 RESETN
1375          * AF9035 gpiot2 = TUA9001 RXEN
1376          */
1377 
1378         /* configure gpiot2 and gpiot2 as output */
1379         ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1380         if (ret < 0)
1381             goto err;
1382 
1383         ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1384         if (ret < 0)
1385             goto err;
1386 
1387         ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1388         if (ret < 0)
1389             goto err;
1390 
1391         ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1392         if (ret < 0)
1393             goto err;
1394 
1395         /* attach tuner */
1396         ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1397                      &d->i2c_adap);
1398         if (ret)
1399             goto err;
1400 
1401         fe = adap->fe[0];
1402         break;
1403     }
1404     case AF9033_TUNER_FC0011:
1405         fe = dvb_attach(fc0011_attach, adap->fe[0],
1406                 &d->i2c_adap, &af9035_fc0011_config);
1407         break;
1408     case AF9033_TUNER_MXL5007T:
1409         if (adap->id == 0) {
1410             ret = af9035_wr_reg(d, 0x00d8e0, 1);
1411             if (ret < 0)
1412                 goto err;
1413 
1414             ret = af9035_wr_reg(d, 0x00d8e1, 1);
1415             if (ret < 0)
1416                 goto err;
1417 
1418             ret = af9035_wr_reg(d, 0x00d8df, 0);
1419             if (ret < 0)
1420                 goto err;
1421 
1422             msleep(30);
1423 
1424             ret = af9035_wr_reg(d, 0x00d8df, 1);
1425             if (ret < 0)
1426                 goto err;
1427 
1428             msleep(300);
1429 
1430             ret = af9035_wr_reg(d, 0x00d8c0, 1);
1431             if (ret < 0)
1432                 goto err;
1433 
1434             ret = af9035_wr_reg(d, 0x00d8c1, 1);
1435             if (ret < 0)
1436                 goto err;
1437 
1438             ret = af9035_wr_reg(d, 0x00d8bf, 0);
1439             if (ret < 0)
1440                 goto err;
1441 
1442             ret = af9035_wr_reg(d, 0x00d8b4, 1);
1443             if (ret < 0)
1444                 goto err;
1445 
1446             ret = af9035_wr_reg(d, 0x00d8b5, 1);
1447             if (ret < 0)
1448                 goto err;
1449 
1450             ret = af9035_wr_reg(d, 0x00d8b3, 1);
1451             if (ret < 0)
1452                 goto err;
1453 
1454             tuner_addr = 0x60;
1455         } else {
1456             tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1457         }
1458 
1459         /* attach tuner */
1460         fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1461                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1462         break;
1463     case AF9033_TUNER_TDA18218:
1464         /* attach tuner */
1465         fe = dvb_attach(tda18218_attach, adap->fe[0],
1466                 &d->i2c_adap, &af9035_tda18218_config);
1467         break;
1468     case AF9033_TUNER_FC2580: {
1469         struct fc2580_platform_data fc2580_pdata = {
1470             .dvb_frontend = adap->fe[0],
1471         };
1472 
1473         /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1474         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1475         if (ret < 0)
1476             goto err;
1477 
1478         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1479         if (ret < 0)
1480             goto err;
1481 
1482         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1483         if (ret < 0)
1484             goto err;
1485 
1486         usleep_range(10000, 50000);
1487         /* attach tuner */
1488         ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1489                      &d->i2c_adap);
1490         if (ret)
1491             goto err;
1492 
1493         fe = adap->fe[0];
1494         break;
1495     }
1496     case AF9033_TUNER_FC0012:
1497         /*
1498          * AF9035 gpiot2 = FC0012 enable
1499          * XXX: there seems to be something on gpioh8 too, but on my
1500          * my test I didn't find any difference.
1501          */
1502 
1503         if (adap->id == 0) {
1504             /* configure gpiot2 as output and high */
1505             ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1506             if (ret < 0)
1507                 goto err;
1508 
1509             ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1510             if (ret < 0)
1511                 goto err;
1512 
1513             ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1514             if (ret < 0)
1515                 goto err;
1516         } else {
1517             /*
1518              * FIXME: That belongs for the FC0012 driver.
1519              * Write 02 to FC0012 master tuner register 0d directly
1520              * in order to make slave tuner working.
1521              */
1522             msg[0].addr = 0x63;
1523             msg[0].flags = 0;
1524             msg[0].len = 2;
1525             msg[0].buf = "\x0d\x02";
1526             ret = i2c_transfer(&d->i2c_adap, msg, 1);
1527             if (ret < 0)
1528                 goto err;
1529         }
1530 
1531         usleep_range(10000, 50000);
1532 
1533         fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1534                 &af9035_fc0012_config[adap->id]);
1535         break;
1536     case AF9033_TUNER_IT9135_38:
1537     case AF9033_TUNER_IT9135_51:
1538     case AF9033_TUNER_IT9135_52:
1539     case AF9033_TUNER_IT9135_60:
1540     case AF9033_TUNER_IT9135_61:
1541     case AF9033_TUNER_IT9135_62:
1542     {
1543         struct platform_device *pdev;
1544         const char *name;
1545         struct it913x_platform_data it913x_pdata = {
1546             .regmap = state->af9033_config[adap->id].regmap,
1547             .fe = adap->fe[0],
1548         };
1549 
1550         switch (state->af9033_config[adap->id].tuner) {
1551         case AF9033_TUNER_IT9135_38:
1552         case AF9033_TUNER_IT9135_51:
1553         case AF9033_TUNER_IT9135_52:
1554             name = "it9133ax-tuner";
1555             break;
1556         case AF9033_TUNER_IT9135_60:
1557         case AF9033_TUNER_IT9135_61:
1558         case AF9033_TUNER_IT9135_62:
1559             name = "it9133bx-tuner";
1560             break;
1561         default:
1562             ret = -ENODEV;
1563             goto err;
1564         }
1565 
1566         if (state->dual_mode) {
1567             if (adap->id == 0)
1568                 it913x_pdata.role = IT913X_ROLE_DUAL_MASTER;
1569             else
1570                 it913x_pdata.role = IT913X_ROLE_DUAL_SLAVE;
1571         } else {
1572             it913x_pdata.role = IT913X_ROLE_SINGLE;
1573         }
1574 
1575         request_module("%s", "it913x");
1576         pdev = platform_device_register_data(&d->intf->dev, name,
1577                              PLATFORM_DEVID_AUTO,
1578                              &it913x_pdata,
1579                              sizeof(it913x_pdata));
1580         if (IS_ERR(pdev) || !pdev->dev.driver) {
1581             ret = -ENODEV;
1582             goto err;
1583         }
1584         if (!try_module_get(pdev->dev.driver->owner)) {
1585             platform_device_unregister(pdev);
1586             ret = -ENODEV;
1587             goto err;
1588         }
1589 
1590         state->platform_device_tuner[adap->id] = pdev;
1591         fe = adap->fe[0];
1592         break;
1593     }
1594     default:
1595         fe = NULL;
1596     }
1597 
1598     if (fe == NULL) {
1599         ret = -ENODEV;
1600         goto err;
1601     }
1602 
1603     return 0;
1604 
1605 err:
1606     dev_dbg(&intf->dev, "failed=%d\n", ret);
1607 
1608     return ret;
1609 }
1610 
1611 static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1612 {
1613     struct state *state = adap_to_priv(adap);
1614     struct dvb_usb_device *d = adap_to_d(adap);
1615     struct usb_interface *intf = d->intf;
1616     int ret;
1617     struct si2157_config si2157_config;
1618 
1619     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1620 
1621     memset(&si2157_config, 0, sizeof(si2157_config));
1622     si2157_config.fe = adap->fe[0];
1623 
1624     /*
1625      * HACK: The Logilink VG0022A and TerraTec TC2 Stick have
1626      * a bug: when the si2157 firmware that came with the device
1627      * is replaced by a new one, the I2C transfers to the tuner
1628      * will return just 0xff.
1629      *
1630      * Probably, the vendor firmware has some patch specifically
1631      * designed for this device. So, we can't replace by the
1632      * generic firmware. The right solution would be to extract
1633      * the si2157 firmware from the original driver and ask the
1634      * driver to load the specifically designed firmware, but,
1635      * while we don't have that, the next best solution is to just
1636      * keep the original firmware at the device.
1637      */
1638     if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_DEXATEK &&
1639          le16_to_cpu(d->udev->descriptor.idProduct) == 0x0100) ||
1640         (le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_TERRATEC &&
1641          le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_TERRATEC_CINERGY_TC2_STICK))
1642         si2157_config.dont_load_firmware = true;
1643 
1644     si2157_config.if_port = it930x_addresses_table[state->it930x_addresses].tuner_if_port;
1645     ret = af9035_add_i2c_dev(d, "si2157",
1646                  it930x_addresses_table[state->it930x_addresses].tuner_i2c_addr,
1647                  &si2157_config, state->i2c_adapter_demod);
1648     if (ret)
1649         goto err;
1650 
1651     return 0;
1652 
1653 err:
1654     dev_dbg(&intf->dev, "failed=%d\n", ret);
1655 
1656     return ret;
1657 }
1658 
1659 
1660 static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1661 {
1662     struct state *state = adap_to_priv(adap);
1663     struct dvb_usb_device *d = adap_to_d(adap);
1664     struct usb_interface *intf = d->intf;
1665 
1666     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1667 
1668     if (adap->id == 1) {
1669         if (state->i2c_client[3])
1670             af9035_del_i2c_dev(d);
1671     } else if (adap->id == 0) {
1672         if (state->i2c_client[1])
1673             af9035_del_i2c_dev(d);
1674     }
1675 
1676     return 0;
1677 }
1678 
1679 
1680 static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1681 {
1682     struct state *state = adap_to_priv(adap);
1683     struct dvb_usb_device *d = adap_to_d(adap);
1684     struct usb_interface *intf = d->intf;
1685 
1686     dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1687 
1688     switch (state->af9033_config[adap->id].tuner) {
1689     case AF9033_TUNER_TUA9001:
1690     case AF9033_TUNER_FC2580:
1691         if (adap->id == 1) {
1692             if (state->i2c_client[3])
1693                 af9035_del_i2c_dev(d);
1694         } else if (adap->id == 0) {
1695             if (state->i2c_client[1])
1696                 af9035_del_i2c_dev(d);
1697         }
1698         break;
1699     case AF9033_TUNER_IT9135_38:
1700     case AF9033_TUNER_IT9135_51:
1701     case AF9033_TUNER_IT9135_52:
1702     case AF9033_TUNER_IT9135_60:
1703     case AF9033_TUNER_IT9135_61:
1704     case AF9033_TUNER_IT9135_62:
1705     {
1706         struct platform_device *pdev;
1707 
1708         pdev = state->platform_device_tuner[adap->id];
1709         if (pdev) {
1710             module_put(pdev->dev.driver->owner);
1711             platform_device_unregister(pdev);
1712         }
1713         break;
1714     }
1715     }
1716 
1717     return 0;
1718 }
1719 
1720 static int af9035_init(struct dvb_usb_device *d)
1721 {
1722     struct state *state = d_to_priv(d);
1723     struct usb_interface *intf = d->intf;
1724     int ret, i;
1725     u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1726     u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1727     struct reg_val_mask tab[] = {
1728         { 0x80f99d, 0x01, 0x01 },
1729         { 0x80f9a4, 0x01, 0x01 },
1730         { 0x00dd11, 0x00, 0x20 },
1731         { 0x00dd11, 0x00, 0x40 },
1732         { 0x00dd13, 0x00, 0x20 },
1733         { 0x00dd13, 0x00, 0x40 },
1734         { 0x00dd11, 0x20, 0x20 },
1735         { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1736         { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1737         { 0x00dd0c, packet_size, 0xff},
1738         { 0x00dd11, state->dual_mode << 6, 0x40 },
1739         { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1740         { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1741         { 0x00dd0d, packet_size, 0xff },
1742         { 0x80f9a3, state->dual_mode, 0x01 },
1743         { 0x80f9cd, state->dual_mode, 0x01 },
1744         { 0x80f99d, 0x00, 0x01 },
1745         { 0x80f9a4, 0x00, 0x01 },
1746     };
1747 
1748     dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1749         d->udev->speed, frame_size, packet_size);
1750 
1751     /* init endpoints */
1752     for (i = 0; i < ARRAY_SIZE(tab); i++) {
1753         ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1754                 tab[i].mask);
1755         if (ret < 0)
1756             goto err;
1757     }
1758 
1759     return 0;
1760 
1761 err:
1762     dev_dbg(&intf->dev, "failed=%d\n", ret);
1763 
1764     return ret;
1765 }
1766 
1767 static int it930x_init(struct dvb_usb_device *d)
1768 {
1769     struct state *state = d_to_priv(d);
1770     struct usb_interface *intf = d->intf;
1771     int ret, i;
1772     u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4;
1773     u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1774     struct reg_val_mask tab[] = {
1775         { 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */
1776         { 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */
1777         { 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */
1778         { 0x00f41a, 0x01, 0x01 }, /* dvbt_en */
1779         { 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */
1780         { 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */
1781         { 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */
1782         { 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */
1783         { 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */
1784         { 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */
1785         { 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */
1786         { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1787         { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1788         { 0x00dd0c, packet_size, 0xff},
1789         { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1790         { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1791         { 0x00dd0d, packet_size, 0xff },
1792         { 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */
1793         { 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */
1794         { 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */
1795         { 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */
1796         { 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */
1797 
1798         /* suspend gpio1 for TS-C */
1799         { 0x00d8b0, 0x01, 0xff }, /* gpio1 */
1800         { 0x00d8b1, 0x01, 0xff }, /* gpio1 */
1801         { 0x00d8af, 0x00, 0xff }, /* gpio1 */
1802 
1803         /* suspend gpio7 for TS-D */
1804         { 0x00d8c4, 0x01, 0xff }, /* gpio7 */
1805         { 0x00d8c5, 0x01, 0xff }, /* gpio7 */
1806         { 0x00d8c3, 0x00, 0xff }, /* gpio7 */
1807 
1808         /* suspend gpio13 for TS-B */
1809         { 0x00d8dc, 0x01, 0xff }, /* gpio13 */
1810         { 0x00d8dd, 0x01, 0xff }, /* gpio13 */
1811         { 0x00d8db, 0x00, 0xff }, /* gpio13 */
1812 
1813         /* suspend gpio14 for TS-E */
1814         { 0x00d8e4, 0x01, 0xff }, /* gpio14 */
1815         { 0x00d8e5, 0x01, 0xff }, /* gpio14 */
1816         { 0x00d8e3, 0x00, 0xff }, /* gpio14 */
1817 
1818         /* suspend gpio15 for TS-A */
1819         { 0x00d8e8, 0x01, 0xff }, /* gpio15 */
1820         { 0x00d8e9, 0x01, 0xff }, /* gpio15 */
1821         { 0x00d8e7, 0x00, 0xff }, /* gpio15 */
1822 
1823         { 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */
1824         { 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */
1825         { 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */
1826         { 0x00da4c, 0x01, 0xff }, /* ts0_en */
1827         { 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */
1828     };
1829 
1830     dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1831         d->udev->speed, frame_size, packet_size);
1832 
1833     /* init endpoints */
1834     for (i = 0; i < ARRAY_SIZE(tab); i++) {
1835         ret = af9035_wr_reg_mask(d, tab[i].reg,
1836                 tab[i].val, tab[i].mask);
1837 
1838         if (ret < 0)
1839             goto err;
1840     }
1841 
1842     return 0;
1843 err:
1844     dev_dbg(&intf->dev, "failed=%d\n", ret);
1845 
1846     return ret;
1847 }
1848 
1849 
1850 #if IS_ENABLED(CONFIG_RC_CORE)
1851 static int af9035_rc_query(struct dvb_usb_device *d)
1852 {
1853     struct usb_interface *intf = d->intf;
1854     int ret;
1855     enum rc_proto proto;
1856     u32 key;
1857     u8 buf[4];
1858     struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1859 
1860     ret = af9035_ctrl_msg(d, &req);
1861     if (ret == 1)
1862         return 0;
1863     else if (ret < 0)
1864         goto err;
1865 
1866     if ((buf[2] + buf[3]) == 0xff) {
1867         if ((buf[0] + buf[1]) == 0xff) {
1868             /* NEC standard 16bit */
1869             key = RC_SCANCODE_NEC(buf[0], buf[2]);
1870             proto = RC_PROTO_NEC;
1871         } else {
1872             /* NEC extended 24bit */
1873             key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1874             proto = RC_PROTO_NECX;
1875         }
1876     } else {
1877         /* NEC full code 32bit */
1878         key = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1879                     buf[2] << 8  | buf[3]);
1880         proto = RC_PROTO_NEC32;
1881     }
1882 
1883     dev_dbg(&intf->dev, "%*ph\n", 4, buf);
1884 
1885     rc_keydown(d->rc_dev, proto, key, 0);
1886 
1887     return 0;
1888 
1889 err:
1890     dev_dbg(&intf->dev, "failed=%d\n", ret);
1891 
1892     return ret;
1893 }
1894 
1895 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1896 {
1897     struct state *state = d_to_priv(d);
1898     struct usb_interface *intf = d->intf;
1899 
1900     dev_dbg(&intf->dev, "ir_mode=%02x ir_type=%02x\n",
1901         state->ir_mode, state->ir_type);
1902 
1903     /* don't activate rc if in HID mode or if not available */
1904     if (state->ir_mode == 0x05) {
1905         switch (state->ir_type) {
1906         case 0: /* NEC */
1907         default:
1908             rc->allowed_protos = RC_PROTO_BIT_NEC |
1909                     RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32;
1910             break;
1911         case 1: /* RC6 */
1912             rc->allowed_protos = RC_PROTO_BIT_RC6_MCE;
1913             break;
1914         }
1915 
1916         rc->query = af9035_rc_query;
1917         rc->interval = 500;
1918 
1919         /* load empty to enable rc */
1920         if (!rc->map_name)
1921             rc->map_name = RC_MAP_EMPTY;
1922     }
1923 
1924     return 0;
1925 }
1926 #else
1927     #define af9035_get_rc_config NULL
1928 #endif
1929 
1930 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1931         struct usb_data_stream_properties *stream)
1932 {
1933     struct dvb_usb_device *d = fe_to_d(fe);
1934     struct usb_interface *intf = d->intf;
1935 
1936     dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1937 
1938     if (d->udev->speed == USB_SPEED_FULL)
1939         stream->u.bulk.buffersize = 5 * 188;
1940 
1941     return 0;
1942 }
1943 
1944 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1945 {
1946     struct state *state = adap_to_priv(adap);
1947 
1948     return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1949 }
1950 
1951 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1952         int onoff)
1953 {
1954     struct state *state = adap_to_priv(adap);
1955 
1956     return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1957 }
1958 
1959 static int af9035_probe(struct usb_interface *intf,
1960         const struct usb_device_id *id)
1961 {
1962     struct usb_device *udev = interface_to_usbdev(intf);
1963     char manufacturer[sizeof("Afatech")];
1964 
1965     memset(manufacturer, 0, sizeof(manufacturer));
1966     usb_string(udev, udev->descriptor.iManufacturer,
1967             manufacturer, sizeof(manufacturer));
1968     /*
1969      * There is two devices having same ID but different chipset. One uses
1970      * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1971      * is iManufacturer string.
1972      *
1973      * idVendor           0x0ccd TerraTec Electronic GmbH
1974      * idProduct          0x0099
1975      * bcdDevice            2.00
1976      * iManufacturer           1 Afatech
1977      * iProduct                2 DVB-T 2
1978      *
1979      * idVendor           0x0ccd TerraTec Electronic GmbH
1980      * idProduct          0x0099
1981      * bcdDevice            2.00
1982      * iManufacturer           1 ITE Technologies, Inc.
1983      * iProduct                2 DVB-T TV Stick
1984      */
1985     if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1986             (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1987         if (!strcmp("Afatech", manufacturer)) {
1988             dev_dbg(&udev->dev, "rejecting device\n");
1989             return -ENODEV;
1990         }
1991     }
1992 
1993     return dvb_usbv2_probe(intf, id);
1994 }
1995 
1996 /* interface 0 is used by DVB-T receiver and
1997    interface 1 is for remote controller (HID) */
1998 static const struct dvb_usb_device_properties af9035_props = {
1999     .driver_name = KBUILD_MODNAME,
2000     .owner = THIS_MODULE,
2001     .adapter_nr = adapter_nr,
2002     .size_of_priv = sizeof(struct state),
2003 
2004     .generic_bulk_ctrl_endpoint = 0x02,
2005     .generic_bulk_ctrl_endpoint_response = 0x81,
2006 
2007     .identify_state = af9035_identify_state,
2008     .download_firmware = af9035_download_firmware,
2009 
2010     .i2c_algo = &af9035_i2c_algo,
2011     .read_config = af9035_read_config,
2012     .frontend_attach = af9035_frontend_attach,
2013     .frontend_detach = af9035_frontend_detach,
2014     .tuner_attach = af9035_tuner_attach,
2015     .tuner_detach = af9035_tuner_detach,
2016     .init = af9035_init,
2017     .get_rc_config = af9035_get_rc_config,
2018     .get_stream_config = af9035_get_stream_config,
2019 
2020     .get_adapter_count = af9035_get_adapter_count,
2021     .adapter = {
2022         {
2023             .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2024                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2025 
2026             .pid_filter_count = 32,
2027             .pid_filter_ctrl = af9035_pid_filter_ctrl,
2028             .pid_filter = af9035_pid_filter,
2029 
2030             .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2031         }, {
2032             .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2033                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2034 
2035             .pid_filter_count = 32,
2036             .pid_filter_ctrl = af9035_pid_filter_ctrl,
2037             .pid_filter = af9035_pid_filter,
2038 
2039             .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2040         },
2041     },
2042 };
2043 
2044 static const struct dvb_usb_device_properties it930x_props = {
2045     .driver_name = KBUILD_MODNAME,
2046     .owner = THIS_MODULE,
2047     .adapter_nr = adapter_nr,
2048     .size_of_priv = sizeof(struct state),
2049 
2050     .generic_bulk_ctrl_endpoint = 0x02,
2051     .generic_bulk_ctrl_endpoint_response = 0x81,
2052 
2053     .identify_state = af9035_identify_state,
2054     .download_firmware = af9035_download_firmware,
2055 
2056     .i2c_algo = &af9035_i2c_algo,
2057     .read_config = af9035_read_config,
2058     .frontend_attach = it930x_frontend_attach,
2059     .frontend_detach = af9035_frontend_detach,
2060     .tuner_attach = it930x_tuner_attach,
2061     .tuner_detach = it930x_tuner_detach,
2062     .init = it930x_init,
2063     .get_stream_config = af9035_get_stream_config,
2064 
2065     .get_adapter_count = af9035_get_adapter_count,
2066     .adapter = {
2067         {
2068             .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2069         }, {
2070             .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2071         },
2072     },
2073 };
2074 
2075 static const struct usb_device_id af9035_id_table[] = {
2076     /* AF9035 devices */
2077     { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2078         &af9035_props, "Afatech AF9035 reference design", NULL) },
2079     { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2080         &af9035_props, "Afatech AF9035 reference design", NULL) },
2081     { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2082         &af9035_props, "Afatech AF9035 reference design", NULL) },
2083     { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2084         &af9035_props, "Afatech AF9035 reference design", NULL) },
2085     { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2086         &af9035_props, "Afatech AF9035 reference design", NULL) },
2087     { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2088         &af9035_props, "TerraTec Cinergy T Stick", NULL) },
2089     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2090         &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2091     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2092         &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2093     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2094         &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2095     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2096         &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2097     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2098         &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2099     { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2100         &af9035_props, "Asus U3100Mini Plus", NULL) },
2101     { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2102         &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2103     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2104         &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2105        { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_EVOLVEO_XTRATV_STICK,
2106            &af9035_props, "EVOLVEO XtraTV stick", NULL) },
2107 
2108     /* IT9135 devices */
2109     { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2110         &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2111     { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2112         &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2113     { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2114         &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2115     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2116         &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2117     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2118         &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2119     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2120         &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2121     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2122         &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
2123     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2124         &af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2125     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2126         &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2127     { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2128         &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2129     { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2130         &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2131                             RC_MAP_IT913X_V1) },
2132     { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2133         &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2134                             RC_MAP_IT913X_V1) },
2135     { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_T1,
2136         &af9035_props, "TerraTec T1", RC_MAP_IT913X_V1) },
2137     /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2138     { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2139         &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2140         NULL) },
2141     { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2142         &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2143     { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2144         &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2145     { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2146         &af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2147     { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2148         &af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2149 
2150     /* IT930x devices */
2151     { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2152         &it930x_props, "ITE 9303 Generic", NULL) },
2153     { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD310,
2154         &it930x_props, "AVerMedia TD310 DVB-T2", NULL) },
2155     { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x0100,
2156         &it930x_props, "Logilink VG0022A", NULL) },
2157     { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_TC2_STICK,
2158         &it930x_props, "TerraTec Cinergy TC2 Stick", NULL) },
2159     { }
2160 };
2161 MODULE_DEVICE_TABLE(usb, af9035_id_table);
2162 
2163 static struct usb_driver af9035_usb_driver = {
2164     .name = KBUILD_MODNAME,
2165     .id_table = af9035_id_table,
2166     .probe = af9035_probe,
2167     .disconnect = dvb_usbv2_disconnect,
2168     .suspend = dvb_usbv2_suspend,
2169     .resume = dvb_usbv2_resume,
2170     .reset_resume = dvb_usbv2_reset_resume,
2171     .no_dynamic_id = 1,
2172     .soft_unbind = 1,
2173 };
2174 
2175 module_usb_driver(af9035_usb_driver);
2176 
2177 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2178 MODULE_DESCRIPTION("Afatech AF9035 driver");
2179 MODULE_LICENSE("GPL");
2180 MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035);
2181 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1);
2182 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2);
2183 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9303);
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!