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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Intel CE6230 DVB USB driver4 *5 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>6 */7 8#include "ce6230.h"9 10DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);11 12static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)13{14 int ret;15 unsigned int pipe;16 u8 request;17 u8 requesttype;18 u16 value;19 u16 index;20 u8 *buf;21 22 request = req->cmd;23 value = req->value;24 index = req->index;25 26 switch (req->cmd) {27 case I2C_READ:28 case DEMOD_READ:29 case REG_READ:30 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);31 break;32 case I2C_WRITE:33 case DEMOD_WRITE:34 case REG_WRITE:35 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);36 break;37 default:38 dev_err(&d->udev->dev, "%s: unknown command=%02x\n",39 KBUILD_MODNAME, req->cmd);40 ret = -EINVAL;41 goto error;42 }43 44 buf = kmalloc(req->data_len, GFP_KERNEL);45 if (!buf) {46 ret = -ENOMEM;47 goto error;48 }49 50 if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {51 /* write */52 memcpy(buf, req->data, req->data_len);53 pipe = usb_sndctrlpipe(d->udev, 0);54 } else {55 /* read */56 pipe = usb_rcvctrlpipe(d->udev, 0);57 }58 59 msleep(1); /* avoid I2C errors */60 61 ret = usb_control_msg(d->udev, pipe, request, requesttype, value, index,62 buf, req->data_len, CE6230_USB_TIMEOUT);63 64 dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, value, index,65 buf, req->data_len);66 67 if (ret < 0)68 dev_err(&d->udev->dev, "%s: usb_control_msg() failed=%d\n",69 KBUILD_MODNAME, ret);70 else71 ret = 0;72 73 /* read request, copy returned data to return buf */74 if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))75 memcpy(req->data, buf, req->data_len);76 77 kfree(buf);78error:79 return ret;80}81 82/* I2C */83static struct zl10353_config ce6230_zl10353_config;84 85static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,86 struct i2c_msg msg[], int num)87{88 struct dvb_usb_device *d = i2c_get_adapdata(adap);89 int ret = 0, i = 0;90 struct usb_req req;91 92 if (num > 2)93 return -EOPNOTSUPP;94 95 memset(&req, 0, sizeof(req));96 97 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)98 return -EAGAIN;99 100 while (i < num) {101 if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {102 if (msg[i].addr ==103 ce6230_zl10353_config.demod_address) {104 if (msg[i].len < 1) {105 i = -EOPNOTSUPP;106 break;107 }108 req.cmd = DEMOD_READ;109 req.value = msg[i].addr >> 1;110 req.index = msg[i].buf[0];111 req.data_len = msg[i+1].len;112 req.data = &msg[i+1].buf[0];113 ret = ce6230_ctrl_msg(d, &req);114 } else {115 dev_err(&d->udev->dev, "%s: I2C read not " \116 "implemented\n",117 KBUILD_MODNAME);118 ret = -EOPNOTSUPP;119 }120 i += 2;121 } else {122 if (msg[i].addr ==123 ce6230_zl10353_config.demod_address) {124 if (msg[i].len < 1) {125 i = -EOPNOTSUPP;126 break;127 }128 req.cmd = DEMOD_WRITE;129 req.value = msg[i].addr >> 1;130 req.index = msg[i].buf[0];131 req.data_len = msg[i].len-1;132 req.data = &msg[i].buf[1];133 ret = ce6230_ctrl_msg(d, &req);134 } else {135 req.cmd = I2C_WRITE;136 req.value = 0x2000 + (msg[i].addr >> 1);137 req.index = 0x0000;138 req.data_len = msg[i].len;139 req.data = &msg[i].buf[0];140 ret = ce6230_ctrl_msg(d, &req);141 }142 i += 1;143 }144 if (ret)145 break;146 }147 148 mutex_unlock(&d->i2c_mutex);149 return ret ? ret : i;150}151 152static u32 ce6230_i2c_functionality(struct i2c_adapter *adapter)153{154 return I2C_FUNC_I2C;155}156 157static struct i2c_algorithm ce6230_i2c_algorithm = {158 .master_xfer = ce6230_i2c_master_xfer,159 .functionality = ce6230_i2c_functionality,160};161 162/* Callbacks for DVB USB */163static struct zl10353_config ce6230_zl10353_config = {164 .demod_address = 0x1e,165 .adc_clock = 450000,166 .if2 = 45700,167 .no_tuner = 1,168 .parallel_ts = 1,169 .clock_ctl_1 = 0x34,170 .pll_0 = 0x0e,171};172 173static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)174{175 struct dvb_usb_device *d = adap_to_d(adap);176 177 dev_dbg(&d->udev->dev, "%s:\n", __func__);178 179 adap->fe[0] = dvb_attach(zl10353_attach, &ce6230_zl10353_config,180 &d->i2c_adap);181 if (adap->fe[0] == NULL)182 return -ENODEV;183 184 return 0;185}186 187static struct mxl5005s_config ce6230_mxl5003s_config = {188 .i2c_address = 0xc6,189 .if_freq = IF_FREQ_4570000HZ,190 .xtal_freq = CRYSTAL_FREQ_16000000HZ,191 .agc_mode = MXL_SINGLE_AGC,192 .tracking_filter = MXL_TF_DEFAULT,193 .rssi_enable = MXL_RSSI_ENABLE,194 .cap_select = MXL_CAP_SEL_ENABLE,195 .div_out = MXL_DIV_OUT_4,196 .clock_out = MXL_CLOCK_OUT_DISABLE,197 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,198 .top = MXL5005S_TOP_25P2,199 .mod_mode = MXL_DIGITAL_MODE,200 .if_mode = MXL_ZERO_IF,201 .AgcMasterByte = 0x00,202};203 204static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)205{206 struct dvb_usb_device *d = adap_to_d(adap);207 int ret;208 209 dev_dbg(&d->udev->dev, "%s:\n", __func__);210 211 ret = dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,212 &ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;213 return ret;214}215 216static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)217{218 int ret;219 220 dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);221 222 /* InterfaceNumber 1 / AlternateSetting 0 idle223 InterfaceNumber 1 / AlternateSetting 1 streaming */224 ret = usb_set_interface(d->udev, 1, onoff);225 if (ret)226 dev_err(&d->udev->dev, "%s: usb_set_interface() failed=%d\n",227 KBUILD_MODNAME, ret);228 229 return ret;230}231 232/* DVB USB Driver stuff */233static struct dvb_usb_device_properties ce6230_props = {234 .driver_name = KBUILD_MODNAME,235 .owner = THIS_MODULE,236 .adapter_nr = adapter_nr,237 .bInterfaceNumber = 1,238 239 .i2c_algo = &ce6230_i2c_algorithm,240 .power_ctrl = ce6230_power_ctrl,241 .frontend_attach = ce6230_zl10353_frontend_attach,242 .tuner_attach = ce6230_mxl5003s_tuner_attach,243 244 .num_adapters = 1,245 .adapter = {246 {247 .stream = {248 .type = USB_BULK,249 .count = 6,250 .endpoint = 0x82,251 .u = {252 .bulk = {253 .buffersize = (16 * 512),254 }255 }256 },257 }258 },259};260 261static const struct usb_device_id ce6230_id_table[] = {262 { DVB_USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500,263 &ce6230_props, "Intel CE9500 reference design", NULL) },264 { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310,265 &ce6230_props, "AVerMedia A310 USB 2.0 DVB-T tuner", NULL) },266 { }267};268MODULE_DEVICE_TABLE(usb, ce6230_id_table);269 270static struct usb_driver ce6230_usb_driver = {271 .name = KBUILD_MODNAME,272 .id_table = ce6230_id_table,273 .probe = dvb_usbv2_probe,274 .disconnect = dvb_usbv2_disconnect,275 .suspend = dvb_usbv2_suspend,276 .resume = dvb_usbv2_resume,277 .reset_resume = dvb_usbv2_reset_resume,278 .no_dynamic_id = 1,279 .soft_unbind = 1,280};281 282module_usb_driver(ce6230_usb_driver);283 284MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");285MODULE_DESCRIPTION("Intel CE6230 driver");286MODULE_LICENSE("GPL");287