1 /* DVB USB compliant linux driver for IT9137
3 * Copyright (C) 2011 Malcolm Priestley (tvboxspy@gmail.com)
4 * IT9137 (C) ITE Tech Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License Version 2, as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * see Documentation/dvb/README.dvb-usb for more information
21 * see Documentation/dvb/it9137.txt for firmware information
24 #define DVB_USB_LOG_PREFIX "it913x"
26 #include <linux/usb.h>
27 #include <linux/usb/input.h>
28 #include <media/rc-core.h>
31 #include "it913x-fe.h"
34 static int dvb_usb_it913x_debug;
35 #define l_dprintk(var, level, args...) do { \
37 printk(KERN_DEBUG DVB_USB_LOG_PREFIX ": " args); \
40 #define deb_info(level, args...) l_dprintk(dvb_usb_it913x_debug, level, args)
41 #define debug_data_snipet(level, name, p) \
42 deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \
43 *p, *(p+1), *(p+2), *(p+3), *(p+4), \
44 *(p+5), *(p+6), *(p+7));
47 module_param_named(debug, dvb_usb_it913x_debug, int, 0644);
48 MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))."
49 DVB_USB_DEBUG_STATUS);
51 static int pid_filter;
52 module_param_named(pid, pid_filter, int, 0644);
53 MODULE_PARM_DESC(pid, "set default 0=on 1=off");
57 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
72 struct ite_config it913x_config;
74 static int it913x_bulk_write(struct usb_device *dev,
75 u8 *snd, int len, u8 pipe)
79 ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe),
80 snd, len , &actual_l, 100);
84 static int it913x_bulk_read(struct usb_device *dev,
85 u8 *rev, int len, u8 pipe)
89 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe),
90 rev, len , &actual_l, 200);
94 static u16 check_sum(u8 *p, u8 len)
99 sum += (i++ & 1) ? (*p++) << 8 : *p++;
103 static int it913x_io(struct usb_device *udev, u8 mode, u8 pro,
104 u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
106 int ret = 0, i, buf_size = 1;
111 buff = kzalloc(256, GFP_KERNEL);
113 info("USB Buffer Failed");
117 buff[buf_size++] = pro;
118 buff[buf_size++] = cmd;
119 buff[buf_size++] = cmd_counter;
124 buff[buf_size++] = len;
125 buff[buf_size++] = 2;
126 buff[buf_size++] = (reg >> 24);
127 buff[buf_size++] = (reg >> 16) & 0xff;
128 buff[buf_size++] = (reg >> 8) & 0xff;
129 buff[buf_size++] = reg & 0xff;
132 buff[buf_size++] = addr;
135 buff[buf_size++] = len;
136 buff[buf_size++] = addr;
137 buff[buf_size++] = (reg >> 8) & 0xff;
138 buff[buf_size++] = reg & 0xff;
152 for (i = 0; i < len ; i++)
153 buff[buf_size++] = data[i];
155 chk_sum = check_sum(&buff[1], buf_size);
157 buff[buf_size++] = chk_sum >> 8;
159 buff[buf_size++] = (chk_sum & 0xff);
161 ret = it913x_bulk_write(udev, buff, buf_size , 0x02);
163 ret |= it913x_bulk_read(udev, buff, (mode & 1) ?
166 rlen = (mode & 0x1) ? 0x1 : len;
171 memcpy(data, &buff[3], rlen);
177 return (ret < 0) ? -ENODEV : 0;
180 static int it913x_wr_reg(struct usb_device *udev, u8 pro, u32 reg , u8 data)
185 ret = it913x_io(udev, WRITE_LONG, pro,
186 CMD_DEMOD_WRITE, reg, 0, b, sizeof(b));
191 static int it913x_read_reg(struct usb_device *udev, u32 reg)
196 ret = it913x_io(udev, READ_LONG, DEV_0,
197 CMD_DEMOD_READ, reg, 0, &data[0], 1);
199 return (ret < 0) ? ret : data[0];
202 static u32 it913x_query(struct usb_device *udev, u8 pro)
206 ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ,
207 0x1222, 0, &data[0], 3);
209 it913x_config.chip_ver = data[0];
210 it913x_config.chip_type = (u16)(data[2] << 8) + data[1];
212 info("Chip Version=%02x Chip Type=%04x", it913x_config.chip_ver,
213 it913x_config.chip_type);
215 ret |= it913x_io(udev, READ_SHORT, pro,
216 CMD_QUERYINFO, 0, 0x1, &data[0], 4);
218 it913x_config.firmware = (data[0] << 24) + (data[1] << 16) +
219 (data[2] << 8) + data[3];
221 return (ret < 0) ? 0 : it913x_config.firmware;
224 static int it913x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
227 u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
229 if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
231 deb_info(1, "PID_C (%02x)", onoff);
234 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
236 mutex_unlock(&adap->dev->i2c_mutex);
240 static int it913x_pid_filter(struct dvb_usb_adapter *adap,
241 int index, u16 pid, int onoff)
243 struct usb_device *udev = adap->dev->udev;
245 u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
250 if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
252 deb_info(1, "PID_F (%02x)", onoff);
254 ret = it913x_wr_reg(udev, pro, PID_EN, 0x1);
256 ret |= it913x_wr_reg(udev, pro, PID_LSB, (u8)(pid & 0xff));
258 ret |= it913x_wr_reg(udev, pro, PID_MSB, (u8)(pid >> 8));
260 ret |= it913x_wr_reg(udev, pro, PID_INX_EN, (u8)onoff);
262 ret |= it913x_wr_reg(udev, pro, PID_INX, (u8)(index & 0x1f));
266 mutex_unlock(&adap->dev->i2c_mutex);
271 static int it913x_return_status(struct usb_device *udev)
275 firm = it913x_query(udev, DEV_0);
277 info("Firmware Version %d", firm);
279 return (firm > 0) ? firm : 0;
282 static int it913x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
285 struct dvb_usb_device *d = i2c_get_adapdata(adap);
290 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
293 debug_data_snipet(1, "Message out", msg[0].buf);
294 deb_info(2, "num of messages %d address %02x", num, msg[0].addr);
296 pro = (msg[0].addr & 0x2) ? DEV_0_DMOD : 0x0;
297 pro |= (msg[0].addr & 0x20) ? DEV_1 : DEV_0;
298 memcpy(data, msg[0].buf, msg[0].len);
299 reg = (data[0] << 24) + (data[1] << 16) +
300 (data[2] << 8) + data[3];
302 ret = it913x_io(d->udev, READ_LONG, pro,
303 CMD_DEMOD_READ, reg, 0, data, msg[1].len);
304 memcpy(msg[1].buf, data, msg[1].len);
306 ret = it913x_io(d->udev, WRITE_LONG, pro, CMD_DEMOD_WRITE,
307 reg, 0, &data[4], msg[0].len - 4);
309 mutex_unlock(&d->i2c_mutex);
314 static u32 it913x_i2c_func(struct i2c_adapter *adapter)
319 static struct i2c_algorithm it913x_i2c_algo = {
320 .master_xfer = it913x_i2c_xfer,
321 .functionality = it913x_i2c_func,
324 /* Callbacks for DVB USB */
325 #define IT913X_POLL 250
326 static int it913x_rc_query(struct dvb_usb_device *d)
331 /* Avoid conflict with frontends*/
332 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
335 ret = it913x_io(d->udev, READ_LONG, PRO_LINK, CMD_IR_GET,
336 0, 0, &ibuf[0], sizeof(ibuf));
338 if ((ibuf[2] + ibuf[3]) == 0xff) {
341 deb_info(1, "INT Key =%08x", key);
342 if (d->rc_dev != NULL)
343 rc_keydown(d->rc_dev, key, 0);
345 mutex_unlock(&d->i2c_mutex);
349 static int it913x_identify_state(struct usb_device *udev,
350 struct dvb_usb_device_properties *props,
351 struct dvb_usb_device_description **desc,
354 int ret = 0, firm_no;
357 firm_no = it913x_return_status(udev);
359 /* checnk for dual mode */
360 it913x_config.dual_mode = it913x_read_reg(udev, 0x49c5);
362 /* TODO different remotes */
363 remote = it913x_read_reg(udev, 0x49ac); /* Remote */
365 props->rc.core.rc_codes = NULL;
367 /* TODO at the moment tuner_id is always assigned to 0x38 */
368 it913x_config.tuner_id_0 = it913x_read_reg(udev, 0x49d0);
370 info("Dual mode=%x Remote=%x Tuner Type=%x", it913x_config.dual_mode
371 , remote, it913x_config.tuner_id_0);
378 if (it913x_config.dual_mode) {
379 it913x_config.tuner_id_1 = it913x_read_reg(udev, 0x49e0);
380 ret = it913x_wr_reg(udev, DEV_0, GPIOH1_EN, 0x1);
381 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_ON, 0x1);
382 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1);
384 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x0);
386 reg = it913x_read_reg(udev, GPIOH1_O);
388 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1);
389 ret |= it913x_return_status(udev);
391 ret = it913x_wr_reg(udev, DEV_0,
394 props->num_adapters = 2;
396 props->num_adapters = 1;
398 reg = it913x_read_reg(udev, IO_MUX_POWER_CLK);
400 if (it913x_config.dual_mode) {
401 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, CHIP2_I2C_ADDR);
402 ret |= it913x_wr_reg(udev, DEV_0, CLK_O_EN, 0x1);
404 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, 0x0);
405 ret |= it913x_wr_reg(udev, DEV_0, CLK_O_EN, 0x0);
410 return (ret < 0) ? -ENODEV : 0;
413 static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
416 u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
418 if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
420 deb_info(1, "STM (%02x)", onoff);
423 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
426 mutex_unlock(&adap->dev->i2c_mutex);
432 static int it913x_download_firmware(struct usb_device *udev,
433 const struct firmware *fw)
436 u8 packet_size, dlen;
441 ret = it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_100);
443 info("FRM Starting Firmware Download");
444 /* This uses scatter write firmware headers follow */
445 /* 03 XX 00 XX = chip number? */
447 for (i = 0; i < fw->size; i += packet_size) {
450 fw_data = (u8 *)(fw->data + i);
451 dlen = ((i + packet_size) > fw->size)
452 ? (fw->size - i) : packet_size;
453 ret |= it913x_io(udev, WRITE_DATA, DEV_0,
454 CMD_SCATTER_WRITE, 0, 0, fw_data, dlen);
458 ret |= it913x_io(udev, WRITE_CMD, DEV_0,
459 CMD_BOOT, 0, 0, NULL, 0);
464 info("FRM Firmware Download Failed (%04x)" , ret);
466 info("FRM Firmware Download Completed - Resetting Device");
468 ret |= it913x_return_status(udev);
472 ret |= it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_400);
475 if (it913x_config.dual_mode)
476 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0xa0);
478 ret |= it913x_wr_reg(udev, DEV_0, PADODPU, 0x0);
479 ret |= it913x_wr_reg(udev, DEV_0, AGC_O_D, 0x0);
480 if (it913x_config.dual_mode) {
481 ret |= it913x_wr_reg(udev, DEV_1, PADODPU, 0x0);
482 ret |= it913x_wr_reg(udev, DEV_1, AGC_O_D, 0x0);
485 return (ret < 0) ? -ENODEV : 0;
488 static int it913x_name(struct dvb_usb_adapter *adap)
490 const char *desc = adap->dev->desc->name;
491 char *fe_name[] = {"_1", "_2", "_3", "_4"};
492 char *name = adap->fe_adap[0].fe->ops.info.name;
494 strlcpy(name, desc, 128);
495 strlcat(name, fe_name[adap->id], 128);
500 static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
502 struct usb_device *udev = adap->dev->udev;
504 u8 adf = it913x_read_reg(udev, IO_MUX_POWER_CLK);
505 u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5);
506 u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize;
507 u8 tuner_id, tuner_type;
510 tuner_id = it913x_config.tuner_id_0;
512 tuner_id = it913x_config.tuner_id_1;
514 /* TODO we always use IT9137 possible references here*/
515 /* Documentation suggests don't care */
527 adap->fe_adap[0].fe = dvb_attach(it913x_fe_attach,
528 &adap->dev->i2c_adap, adap_addr, adf, tuner_type);
530 if (adap->id == 0 && adap->fe_adap[0].fe) {
531 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x1);
532 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x1);
533 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x0f);
534 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_NAK, 0x1b);
535 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x2f);
536 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB,
538 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8);
539 ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, 0x80);
540 } else if (adap->id == 1 && adap->fe_adap[0].fe) {
541 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f);
542 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB,
544 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8);
545 ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, 0x80);
546 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1);
547 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1);
548 ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1);
549 ret = it913x_wr_reg(udev, DEV_0_DMOD, TSIS_ENABLE, 0x1);
550 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x0);
551 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x0);
552 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_HALF_PSB, 0x0);
553 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF_STOP_EN, 0x1);
554 ret = it913x_wr_reg(udev, DEV_1_DMOD, MPEG_FULL_SPEED, 0x0);
555 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_STOP_EN, 0x0);
559 ret = it913x_name(adap);
565 static struct dvb_usb_device_properties it913x_properties;
567 static int it913x_probe(struct usb_interface *intf,
568 const struct usb_device_id *id)
571 if (0 == dvb_usb_device_init(intf, &it913x_properties,
572 THIS_MODULE, NULL, adapter_nr)) {
573 info("DEV registering device driver");
577 info("DEV it913x Error");
582 static struct usb_device_id it913x_table[] = {
583 { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09) },
584 { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135) },
585 {} /* Terminating entry */
588 MODULE_DEVICE_TABLE(usb, it913x_table);
590 static struct dvb_usb_device_properties it913x_properties = {
591 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
592 .usb_ctrl = DEVICE_SPECIFIC,
593 .download_firmware = it913x_download_firmware,
594 .firmware = "dvb-usb-it9137-01.fw",
596 .size_of_priv = sizeof(struct it913x_state),
602 .caps = DVB_USB_ADAP_HAS_PID_FILTER|
603 DVB_USB_ADAP_NEED_PID_FILTERING|
604 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
605 .streaming_ctrl = it913x_streaming_ctrl,
606 .pid_filter_count = 31,
607 .pid_filter = it913x_pid_filter,
608 .pid_filter_ctrl = it913x_pid_filter_ctrl,
609 .frontend_attach = it913x_frontend_attach,
610 /* parameter for the MPEG2-data transfer */
615 .u = {/* Keep Low if PID filter on */
627 .caps = DVB_USB_ADAP_HAS_PID_FILTER|
628 DVB_USB_ADAP_NEED_PID_FILTERING|
629 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
630 .streaming_ctrl = it913x_streaming_ctrl,
631 .pid_filter_count = 31,
632 .pid_filter = it913x_pid_filter,
633 .pid_filter_ctrl = it913x_pid_filter_ctrl,
634 .frontend_attach = it913x_frontend_attach,
635 /* parameter for the MPEG2-data transfer */
650 .identify_state = it913x_identify_state,
652 .protocol = RC_TYPE_NEC,
653 .module_name = "it913x",
654 .rc_query = it913x_rc_query,
655 .rc_interval = IT913X_POLL,
656 .allowed_protos = RC_TYPE_NEC,
657 .rc_codes = RC_MAP_KWORLD_315U,
659 .i2c_algo = &it913x_i2c_algo,
660 .num_device_descs = 2,
662 { "Kworld UB499-2T T09(IT9137)",
663 { &it913x_table[0], NULL },
665 { "ITE 9135 Generic",
666 { &it913x_table[1], NULL },
671 static struct usb_driver it913x_driver = {
673 .probe = it913x_probe,
674 .disconnect = dvb_usb_device_exit,
675 .id_table = it913x_table,
678 module_usb_driver(it913x_driver);
680 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
681 MODULE_DESCRIPTION("it913x USB 2 Driver");
682 MODULE_VERSION("1.07");
683 MODULE_LICENSE("GPL");