diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/it913x.c')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/it913x.c | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/it913x.c b/drivers/media/dvb/dvb-usb/it913x.c new file mode 100644 index 000000000000..f027a2c1c3e8 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/it913x.c @@ -0,0 +1,651 @@ +/* DVB USB compliant linux driver for IT9137 + * + * Copyright (C) 2011 Malcolm Priestley (tvboxspy@gmail.com) + * IT9137 (C) ITE Tech Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License Version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * see Documentation/dvb/README.dvb-usb for more information + * see Documentation/dvb/it9137.txt for firmware information + * + */ +#define DVB_USB_LOG_PREFIX "it913x" + +#include <linux/usb.h> +#include <linux/usb/input.h> +#include <media/rc-core.h> + +#include "dvb-usb.h" +#include "it913x-fe.h" + +/* debug */ +static int dvb_usb_it913x_debug; +#define l_dprintk(var, level, args...) do { \ + if ((var >= level)) \ + printk(KERN_DEBUG DVB_USB_LOG_PREFIX ": " args); \ +} while (0) + +#define deb_info(level, args...) l_dprintk(dvb_usb_it913x_debug, level, args) +#define debug_data_snipet(level, name, p) \ + deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \ + *p, *(p+1), *(p+2), *(p+3), *(p+4), \ + *(p+5), *(p+6), *(p+7)); + + +module_param_named(debug, dvb_usb_it913x_debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))." + DVB_USB_DEBUG_STATUS); + +static int pid_filter; +module_param_named(pid, pid_filter, int, 0644); +MODULE_PARM_DESC(pid, "set default 0=on 1=off"); + +int cmd_counter; + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +struct it913x_state { + u8 id; +}; + +static int it913x_bulk_write(struct usb_device *dev, + u8 *snd, int len, u8 pipe) +{ + int ret, actual_l; + + ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe), + snd, len , &actual_l, 100); + return ret; +} + +static int it913x_bulk_read(struct usb_device *dev, + u8 *rev, int len, u8 pipe) +{ + int ret, actual_l; + + ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe), + rev, len , &actual_l, 200); + return ret; +} + +static u16 check_sum(u8 *p, u8 len) +{ + u16 sum = 0; + u8 i = 1; + while (i < len) + sum += (i++ & 1) ? (*p++) << 8 : *p++; + return ~sum; +} + +static int it913x_io(struct usb_device *udev, u8 mode, u8 pro, + u8 cmd, u32 reg, u8 addr, u8 *data, u8 len) +{ + int ret = 0, i, buf_size = 1; + u8 *buff; + u8 rlen; + u16 chk_sum; + + buff = kzalloc(256, GFP_KERNEL); + if (!buff) { + info("USB Buffer Failed"); + return -ENOMEM; + } + + buff[buf_size++] = pro; + buff[buf_size++] = cmd; + buff[buf_size++] = cmd_counter; + + switch (mode) { + case READ_LONG: + case WRITE_LONG: + buff[buf_size++] = len; + buff[buf_size++] = 2; + buff[buf_size++] = (reg >> 24); + buff[buf_size++] = (reg >> 16) & 0xff; + buff[buf_size++] = (reg >> 8) & 0xff; + buff[buf_size++] = reg & 0xff; + break; + case READ_SHORT: + buff[buf_size++] = addr; + break; + case WRITE_SHORT: + buff[buf_size++] = len; + buff[buf_size++] = addr; + buff[buf_size++] = (reg >> 8) & 0xff; + buff[buf_size++] = reg & 0xff; + break; + case READ_DATA: + case WRITE_DATA: + break; + case WRITE_CMD: + mode = 7; + break; + default: + kfree(buff); + return -EINVAL; + } + + if (mode & 1) { + for (i = 0; i < len ; i++) + buff[buf_size++] = data[i]; + } + chk_sum = check_sum(&buff[1], buf_size); + + buff[buf_size++] = chk_sum >> 8; + buff[0] = buf_size; + buff[buf_size++] = (chk_sum & 0xff); + + ret = it913x_bulk_write(udev, buff, buf_size , 0x02); + + ret |= it913x_bulk_read(udev, buff, (mode & 1) ? + 5 : len + 5 , 0x01); + + rlen = (mode & 0x1) ? 0x1 : len; + + if (mode & 1) + ret |= buff[2]; + else + memcpy(data, &buff[3], rlen); + + cmd_counter++; + + kfree(buff); + + return (ret < 0) ? -ENODEV : 0; +} + +static int it913x_wr_reg(struct usb_device *udev, u8 pro, u32 reg , u8 data) +{ + int ret; + u8 b[1]; + b[0] = data; + ret = it913x_io(udev, WRITE_LONG, pro, + CMD_DEMOD_WRITE, reg, 0, b, sizeof(b)); + + return ret; +} + +static int it913x_read_reg(struct usb_device *udev, u32 reg) +{ + int ret; + u8 data[1]; + + ret = it913x_io(udev, READ_LONG, DEV_0, + CMD_DEMOD_READ, reg, 0, &data[0], 1); + + return (ret < 0) ? ret : data[0]; +} + +static u32 it913x_query(struct usb_device *udev, u8 pro) +{ + int ret; + u32 res = 0; + u8 data[4]; + ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ, + 0x1222, 0, &data[0], 1); + if (data[0] == 0x1) { + ret = it913x_io(udev, READ_SHORT, pro, + CMD_QUERYINFO, 0, 0x1, &data[0], 4); + res = (data[0] << 24) + (data[1] << 16) + + (data[2] << 8) + data[3]; + } + + return (ret < 0) ? 0 : res; +} + +static int it913x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + int ret = 0; + u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD; + + if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0) + return -EAGAIN; + deb_info(1, "PID_C (%02x)", onoff); + + if (!onoff) + ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1); + + mutex_unlock(&adap->dev->i2c_mutex); + return ret; +} + +static int it913x_pid_filter(struct dvb_usb_adapter *adap, + int index, u16 pid, int onoff) +{ + struct usb_device *udev = adap->dev->udev; + int ret = 0; + u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD; + + if (pid_filter > 0) + return 0; + + if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0) + return -EAGAIN; + deb_info(1, "PID_F (%02x)", onoff); + if (onoff) { + ret = it913x_wr_reg(udev, pro, PID_EN, 0x1); + + ret |= it913x_wr_reg(udev, pro, PID_LSB, (u8)(pid & 0xff)); + + ret |= it913x_wr_reg(udev, pro, PID_MSB, (u8)(pid >> 8)); + + ret |= it913x_wr_reg(udev, pro, PID_INX_EN, (u8)onoff); + + ret |= it913x_wr_reg(udev, pro, PID_INX, (u8)(index & 0x1f)); + + } + + mutex_unlock(&adap->dev->i2c_mutex); + return 0; +} + + +static int it913x_return_status(struct usb_device *udev) +{ + u32 firm = 0; + + firm = it913x_query(udev, DEV_0); + if (firm > 0) + info("Firmware Version %d", firm); + + return (firm > 0) ? firm : 0; +} + +static int it913x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], + int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + static u8 data[256]; + int ret; + u32 reg; + u8 pro; + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + debug_data_snipet(1, "Message out", msg[0].buf); + deb_info(2, "num of messages %d address %02x", num, msg[0].addr); + + pro = (msg[0].addr & 0x2) ? DEV_0_DMOD : 0x0; + pro |= (msg[0].addr & 0x20) ? DEV_1 : DEV_0; + memcpy(data, msg[0].buf, msg[0].len); + reg = (data[0] << 24) + (data[1] << 16) + + (data[2] << 8) + data[3]; + if (num == 2) { + ret = it913x_io(d->udev, READ_LONG, pro, + CMD_DEMOD_READ, reg, 0, data, msg[1].len); + memcpy(msg[1].buf, data, msg[1].len); + } else + ret = it913x_io(d->udev, WRITE_LONG, pro, CMD_DEMOD_WRITE, + reg, 0, &data[4], msg[0].len - 4); + + mutex_unlock(&d->i2c_mutex); + + return ret; +} + +static u32 it913x_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm it913x_i2c_algo = { + .master_xfer = it913x_i2c_xfer, + .functionality = it913x_i2c_func, +}; + +/* Callbacks for DVB USB */ +#define IT913X_POLL 250 +static int it913x_rc_query(struct dvb_usb_device *d) +{ + u8 ibuf[4]; + int ret; + u32 key; + /* Avoid conflict with frontends*/ + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + ret = it913x_io(d->udev, READ_LONG, PRO_LINK, CMD_IR_GET, + 0, 0, &ibuf[0], sizeof(ibuf)); + + if ((ibuf[2] + ibuf[3]) == 0xff) { + key = ibuf[2]; + key += ibuf[0] << 8; + deb_info(1, "INT Key =%08x", key); + if (d->rc_dev != NULL) + rc_keydown(d->rc_dev, key, 0); + } + mutex_unlock(&d->i2c_mutex); + + return ret; +} +static int it913x_identify_state(struct usb_device *udev, + struct dvb_usb_device_properties *props, + struct dvb_usb_device_description **desc, + int *cold) +{ + int ret = 0, firm_no; + u8 reg, adap, ep, tun0, tun1; + + firm_no = it913x_return_status(udev); + + ep = it913x_read_reg(udev, 0x49ac); + adap = it913x_read_reg(udev, 0x49c5); + tun0 = it913x_read_reg(udev, 0x49d0); + info("No. Adapters=%x Endpoints=%x Tuner Type=%x", adap, ep, tun0); + + if (firm_no > 0) { + *cold = 0; + return 0; + } + + if (adap > 2) { + tun1 = it913x_read_reg(udev, 0x49e0); + ret = it913x_wr_reg(udev, DEV_0, GPIOH1_EN, 0x1); + ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_ON, 0x1); + ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1); + msleep(50); /* Delay noticed reset cycle ? */ + ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x0); + msleep(50); + reg = it913x_read_reg(udev, GPIOH1_O); + if (reg == 0) { + ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1); + ret |= it913x_return_status(udev); + if (ret != 0) + ret = it913x_wr_reg(udev, DEV_0, + GPIOH1_O, 0x0); + } + } else + props->num_adapters = 1; + + reg = it913x_read_reg(udev, IO_MUX_POWER_CLK); + + ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, CHIP2_I2C_ADDR); + + ret |= it913x_wr_reg(udev, DEV_0, CLK_O_EN, 0x1); + + *cold = 1; + + return (ret < 0) ? -ENODEV : 0; +} + +static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + int ret = 0; + u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD; + + if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0) + return -EAGAIN; + deb_info(1, "STM (%02x)", onoff); + + if (!onoff) + ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1); + + + mutex_unlock(&adap->dev->i2c_mutex); + + return ret; +} + + +static int it913x_download_firmware(struct usb_device *udev, + const struct firmware *fw) +{ + int ret = 0, i; + u8 packet_size, dlen, tun1; + u8 *fw_data; + + packet_size = 0x29; + + tun1 = it913x_read_reg(udev, 0x49e0); + + ret = it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_100); + + info("FRM Starting Firmware Download"); + /* This uses scatter write firmware headers follow */ + /* 03 XX 00 XX = chip number? */ + + for (i = 0; i < fw->size; i += packet_size) { + if (i > 0) + packet_size = 0x39; + fw_data = (u8 *)(fw->data + i); + dlen = ((i + packet_size) > fw->size) + ? (fw->size - i) : packet_size; + ret |= it913x_io(udev, WRITE_DATA, DEV_0, + CMD_SCATTER_WRITE, 0, 0, fw_data, dlen); + udelay(1000); + } + + ret |= it913x_io(udev, WRITE_CMD, DEV_0, + CMD_BOOT, 0, 0, NULL, 0); + + msleep(100); + + if (ret < 0) + info("FRM Firmware Download Failed (%04x)" , ret); + else + info("FRM Firmware Download Completed - Resetting Device"); + + ret |= it913x_return_status(udev); + + msleep(30); + + ret |= it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_400); + + /* Tuner function */ + ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0xa0); + + ret |= it913x_wr_reg(udev, DEV_0, PADODPU, 0x0); + ret |= it913x_wr_reg(udev, DEV_0, AGC_O_D, 0x0); + if (tun1 > 0) { + ret |= it913x_wr_reg(udev, DEV_1, PADODPU, 0x0); + ret |= it913x_wr_reg(udev, DEV_1, AGC_O_D, 0x0); + } + + return (ret < 0) ? -ENODEV : 0; +} + +static int it913x_name(struct dvb_usb_adapter *adap) +{ + const char *desc = adap->dev->desc->name; + char *fe_name[] = {"_1", "_2", "_3", "_4"}; + char *name = adap->fe_adap[0].fe->ops.info.name; + + strlcpy(name, desc, 128); + strlcat(name, fe_name[adap->id], 128); + + return 0; +} + +static int it913x_frontend_attach(struct dvb_usb_adapter *adap) +{ + struct usb_device *udev = adap->dev->udev; + int ret = 0; + u8 adf = it913x_read_reg(udev, IO_MUX_POWER_CLK); + u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5); + u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize; + + adap->fe_adap[0].fe = dvb_attach(it913x_fe_attach, + &adap->dev->i2c_adap, adap_addr, adf, IT9137); + + if (adap->id == 0 && adap->fe_adap[0].fe) { + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x1); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x1); + ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x0f); + ret = it913x_wr_reg(udev, DEV_0, EP0_TX_NAK, 0x1b); + ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x2f); + ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB, + ep_size & 0xff); + ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8); + ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, 0x80); + } else if (adap->id == 1 && adap->fe_adap[0].fe) { + ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f); + ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB, + ep_size & 0xff); + ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8); + ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, 0x80); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1); + ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1); + ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1); + ret = it913x_wr_reg(udev, DEV_0_DMOD, TSIS_ENABLE, 0x1); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x0); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x0); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_HALF_PSB, 0x0); + ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF_STOP_EN, 0x1); + ret = it913x_wr_reg(udev, DEV_1_DMOD, MPEG_FULL_SPEED, 0x0); + ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_STOP_EN, 0x0); + } else + return -ENODEV; + + ret = it913x_name(adap); + + return ret; +} + +/* DVB USB Driver */ +static struct dvb_usb_device_properties it913x_properties; + +static int it913x_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + cmd_counter = 0; + if (0 == dvb_usb_device_init(intf, &it913x_properties, + THIS_MODULE, NULL, adapter_nr)) { + info("DEV registering device driver"); + return 0; + } + + info("DEV it913x Error"); + return -ENODEV; + +} + +static struct usb_device_id it913x_table[] = { + { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09) }, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, it913x_table); + +static struct dvb_usb_device_properties it913x_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + .usb_ctrl = DEVICE_SPECIFIC, + .download_firmware = it913x_download_firmware, + .firmware = "dvb-usb-it9137-01.fw", + .no_reconnect = 1, + .size_of_priv = sizeof(struct it913x_state), + .num_adapters = 2, + .adapter = { + { + .num_frontends = 1, + .fe = {{ + .caps = DVB_USB_ADAP_HAS_PID_FILTER| + DVB_USB_ADAP_NEED_PID_FILTERING| + DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, + .streaming_ctrl = it913x_streaming_ctrl, + .pid_filter_count = 31, + .pid_filter = it913x_pid_filter, + .pid_filter_ctrl = it913x_pid_filter_ctrl, + .frontend_attach = it913x_frontend_attach, + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 10, + .endpoint = 0x04, + .u = {/* Keep Low if PID filter on */ + .bulk = { + .buffersize = 3584, + + } + } + } + }}, + }, + { + .num_frontends = 1, + .fe = {{ + .caps = DVB_USB_ADAP_HAS_PID_FILTER| + DVB_USB_ADAP_NEED_PID_FILTERING| + DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, + .streaming_ctrl = it913x_streaming_ctrl, + .pid_filter_count = 31, + .pid_filter = it913x_pid_filter, + .pid_filter_ctrl = it913x_pid_filter_ctrl, + .frontend_attach = it913x_frontend_attach, + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 5, + .endpoint = 0x05, + .u = { + .bulk = { + .buffersize = 3584, + + } + } + } + }}, + } + }, + .identify_state = it913x_identify_state, + .rc.core = { + .protocol = RC_TYPE_NEC, + .module_name = "it913x", + .rc_query = it913x_rc_query, + .rc_interval = IT913X_POLL, + .allowed_protos = RC_TYPE_NEC, + .rc_codes = RC_MAP_KWORLD_315U, + }, + .i2c_algo = &it913x_i2c_algo, + .num_device_descs = 1, + .devices = { + { "Kworld UB499-2T T09(IT9137)", + { &it913x_table[0], NULL }, + }, + + } +}; + +static struct usb_driver it913x_driver = { + .name = "it913x", + .probe = it913x_probe, + .disconnect = dvb_usb_device_exit, + .id_table = it913x_table, +}; + +/* module stuff */ +static int __init it913x_module_init(void) +{ + int result = usb_register(&it913x_driver); + if (result) { + err("usb_register failed. Error number %d", result); + return result; + } + + return 0; +} + +static void __exit it913x_module_exit(void) +{ + /* deregister this driver from the USB subsystem */ + usb_deregister(&it913x_driver); +} + +module_init(it913x_module_init); +module_exit(it913x_module_exit); + +MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>"); +MODULE_DESCRIPTION("it913x USB 2 Driver"); +MODULE_VERSION("1.06"); +MODULE_LICENSE("GPL"); |
