diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/ce6230.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/ce6230.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/ce6230.c b/drivers/media/usb/dvb-usb-v2/ce6230.c new file mode 100644 index 0000000000..d3b5cb4a24 --- /dev/null +++ b/drivers/media/usb/dvb-usb-v2/ce6230.c @@ -0,0 +1,286 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Intel CE6230 DVB USB driver + * + * Copyright (C) 2009 Antti Palosaari <crope@iki.fi> + */ + +#include "ce6230.h" + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req) +{ + int ret; + unsigned int pipe; + u8 request; + u8 requesttype; + u16 value; + u16 index; + u8 *buf; + + request = req->cmd; + value = req->value; + index = req->index; + + switch (req->cmd) { + case I2C_READ: + case DEMOD_READ: + case REG_READ: + requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); + break; + case I2C_WRITE: + case DEMOD_WRITE: + case REG_WRITE: + requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); + break; + default: + dev_err(&d->udev->dev, "%s: unknown command=%02x\n", + KBUILD_MODNAME, req->cmd); + ret = -EINVAL; + goto error; + } + + buf = kmalloc(req->data_len, GFP_KERNEL); + if (!buf) { + ret = -ENOMEM; + goto error; + } + + if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) { + /* write */ + memcpy(buf, req->data, req->data_len); + pipe = usb_sndctrlpipe(d->udev, 0); + } else { + /* read */ + pipe = usb_rcvctrlpipe(d->udev, 0); + } + + msleep(1); /* avoid I2C errors */ + + ret = usb_control_msg(d->udev, pipe, request, requesttype, value, index, + buf, req->data_len, CE6230_USB_TIMEOUT); + + dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, value, index, + buf, req->data_len); + + if (ret < 0) + dev_err(&d->udev->dev, "%s: usb_control_msg() failed=%d\n", + KBUILD_MODNAME, ret); + else + ret = 0; + + /* read request, copy returned data to return buf */ + if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN)) + memcpy(req->data, buf, req->data_len); + + kfree(buf); +error: + return ret; +} + +/* I2C */ +static struct zl10353_config ce6230_zl10353_config; + +static int ce6230_i2c_master_xfer(struct i2c_adapter *adap, + struct i2c_msg msg[], int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int ret = 0, i = 0; + struct usb_req req; + + if (num > 2) + return -EOPNOTSUPP; + + memset(&req, 0, sizeof(req)); + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + while (i < num) { + if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) { + if (msg[i].addr == + ce6230_zl10353_config.demod_address) { + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } + req.cmd = DEMOD_READ; + req.value = msg[i].addr >> 1; + req.index = msg[i].buf[0]; + req.data_len = msg[i+1].len; + req.data = &msg[i+1].buf[0]; + ret = ce6230_ctrl_msg(d, &req); + } else { + dev_err(&d->udev->dev, "%s: I2C read not " \ + "implemented\n", + KBUILD_MODNAME); + ret = -EOPNOTSUPP; + } + i += 2; + } else { + if (msg[i].addr == + ce6230_zl10353_config.demod_address) { + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } + req.cmd = DEMOD_WRITE; + req.value = msg[i].addr >> 1; + req.index = msg[i].buf[0]; + req.data_len = msg[i].len-1; + req.data = &msg[i].buf[1]; + ret = ce6230_ctrl_msg(d, &req); + } else { + req.cmd = I2C_WRITE; + req.value = 0x2000 + (msg[i].addr >> 1); + req.index = 0x0000; + req.data_len = msg[i].len; + req.data = &msg[i].buf[0]; + ret = ce6230_ctrl_msg(d, &req); + } + i += 1; + } + if (ret) + break; + } + + mutex_unlock(&d->i2c_mutex); + return ret ? ret : i; +} + +static u32 ce6230_i2c_functionality(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm ce6230_i2c_algorithm = { + .master_xfer = ce6230_i2c_master_xfer, + .functionality = ce6230_i2c_functionality, +}; + +/* Callbacks for DVB USB */ +static struct zl10353_config ce6230_zl10353_config = { + .demod_address = 0x1e, + .adc_clock = 450000, + .if2 = 45700, + .no_tuner = 1, + .parallel_ts = 1, + .clock_ctl_1 = 0x34, + .pll_0 = 0x0e, +}; + +static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap) +{ + struct dvb_usb_device *d = adap_to_d(adap); + + dev_dbg(&d->udev->dev, "%s:\n", __func__); + + adap->fe[0] = dvb_attach(zl10353_attach, &ce6230_zl10353_config, + &d->i2c_adap); + if (adap->fe[0] == NULL) + return -ENODEV; + + return 0; +} + +static struct mxl5005s_config ce6230_mxl5003s_config = { + .i2c_address = 0xc6, + .if_freq = IF_FREQ_4570000HZ, + .xtal_freq = CRYSTAL_FREQ_16000000HZ, + .agc_mode = MXL_SINGLE_AGC, + .tracking_filter = MXL_TF_DEFAULT, + .rssi_enable = MXL_RSSI_ENABLE, + .cap_select = MXL_CAP_SEL_ENABLE, + .div_out = MXL_DIV_OUT_4, + .clock_out = MXL_CLOCK_OUT_DISABLE, + .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM, + .top = MXL5005S_TOP_25P2, + .mod_mode = MXL_DIGITAL_MODE, + .if_mode = MXL_ZERO_IF, + .AgcMasterByte = 0x00, +}; + +static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap) +{ + struct dvb_usb_device *d = adap_to_d(adap); + int ret; + + dev_dbg(&d->udev->dev, "%s:\n", __func__); + + ret = dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap, + &ce6230_mxl5003s_config) == NULL ? -ENODEV : 0; + return ret; +} + +static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + int ret; + + dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff); + + /* InterfaceNumber 1 / AlternateSetting 0 idle + InterfaceNumber 1 / AlternateSetting 1 streaming */ + ret = usb_set_interface(d->udev, 1, onoff); + if (ret) + dev_err(&d->udev->dev, "%s: usb_set_interface() failed=%d\n", + KBUILD_MODNAME, ret); + + return ret; +} + +/* DVB USB Driver stuff */ +static struct dvb_usb_device_properties ce6230_props = { + .driver_name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .adapter_nr = adapter_nr, + .bInterfaceNumber = 1, + + .i2c_algo = &ce6230_i2c_algorithm, + .power_ctrl = ce6230_power_ctrl, + .frontend_attach = ce6230_zl10353_frontend_attach, + .tuner_attach = ce6230_mxl5003s_tuner_attach, + + .num_adapters = 1, + .adapter = { + { + .stream = { + .type = USB_BULK, + .count = 6, + .endpoint = 0x82, + .u = { + .bulk = { + .buffersize = (16 * 512), + } + } + }, + } + }, +}; + +static const struct usb_device_id ce6230_id_table[] = { + { DVB_USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500, + &ce6230_props, "Intel CE9500 reference design", NULL) }, + { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310, + &ce6230_props, "AVerMedia A310 USB 2.0 DVB-T tuner", NULL) }, + { } +}; +MODULE_DEVICE_TABLE(usb, ce6230_id_table); + +static struct usb_driver ce6230_usb_driver = { + .name = KBUILD_MODNAME, + .id_table = ce6230_id_table, + .probe = dvb_usbv2_probe, + .disconnect = dvb_usbv2_disconnect, + .suspend = dvb_usbv2_suspend, + .resume = dvb_usbv2_resume, + .reset_resume = dvb_usbv2_reset_resume, + .no_dynamic_id = 1, + .soft_unbind = 1, +}; + +module_usb_driver(ce6230_usb_driver); + +MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); +MODULE_DESCRIPTION("Intel CE6230 driver"); +MODULE_LICENSE("GPL"); |