--- /dev/null
+/* 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 */
+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[0]->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.stream.u.bulk.buffersize;
+
+ adap->fe[0] = dvb_attach(it913x_fe_attach,
+ &adap->dev->i2c_adap, adap_addr, adf, IT9137);
+
+ if (adap->id == 0 && adap->fe[0]) {
+ 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[0]) {
+ 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 = {
+ {
+ .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,
+
+ }
+ }
+ }
+ },
+ {
+ .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,
+ .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("1.05");
+MODULE_LICENSE("GPL");
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff