1b53f2fa1SBrad Love // SPDX-License-Identifier: GPL-2.0 2b53f2fa1SBrad Love /* 3b53f2fa1SBrad Love * Driver for the MaxLinear MxL69x family of combo tuners/demods 4b53f2fa1SBrad Love * 5b53f2fa1SBrad Love * Copyright (C) 2020 Brad Love <brad@nextdimension.cc> 6b53f2fa1SBrad Love * 7b53f2fa1SBrad Love * based on code: 8b53f2fa1SBrad Love * Copyright (c) 2016 MaxLinear, Inc. All rights reserved 9b53f2fa1SBrad Love * which was released under GPL V2 10b53f2fa1SBrad Love * 11b53f2fa1SBrad Love * This program is free software; you can redistribute it and/or 12b53f2fa1SBrad Love * modify it under the terms of the GNU General Public License 13b53f2fa1SBrad Love * version 2, as published by the Free Software Foundation. 14b53f2fa1SBrad Love * 15b53f2fa1SBrad Love * This program is distributed in the hope that it will be useful, 16b53f2fa1SBrad Love * but WITHOUT ANY WARRANTY; without even the implied warranty of 17b53f2fa1SBrad Love * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18b53f2fa1SBrad Love * GNU General Public License for more details. 19b53f2fa1SBrad Love */ 20b53f2fa1SBrad Love 21b53f2fa1SBrad Love #include <linux/mutex.h> 22b53f2fa1SBrad Love #include <linux/i2c-mux.h> 23b53f2fa1SBrad Love #include <linux/string.h> 24b53f2fa1SBrad Love #include <linux/firmware.h> 25b53f2fa1SBrad Love 26b53f2fa1SBrad Love #include "mxl692.h" 27b53f2fa1SBrad Love #include "mxl692_defs.h" 28b53f2fa1SBrad Love 29b53f2fa1SBrad Love static const struct dvb_frontend_ops mxl692_ops; 30b53f2fa1SBrad Love 31b53f2fa1SBrad Love struct mxl692_dev { 32b53f2fa1SBrad Love struct dvb_frontend fe; 33b53f2fa1SBrad Love struct i2c_client *i2c_client; 34b53f2fa1SBrad Love struct mutex i2c_lock; /* i2c command mutex */ 35b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type; 36b53f2fa1SBrad Love enum MXL_EAGLE_POWER_MODE_E power_mode; 37b53f2fa1SBrad Love u32 current_frequency; 38b53f2fa1SBrad Love int device_type; 39b53f2fa1SBrad Love int seqnum; 40b53f2fa1SBrad Love int init_done; 41b53f2fa1SBrad Love }; 42b53f2fa1SBrad Love 43b53f2fa1SBrad Love static int mxl692_i2c_write(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) 44b53f2fa1SBrad Love { 45b53f2fa1SBrad Love int ret = 0; 46b53f2fa1SBrad Love struct i2c_msg msg = { 47b53f2fa1SBrad Love .addr = dev->i2c_client->addr, 48b53f2fa1SBrad Love .flags = 0, 49b53f2fa1SBrad Love .buf = buffer, 50b53f2fa1SBrad Love .len = buf_len 51b53f2fa1SBrad Love }; 52b53f2fa1SBrad Love 53b53f2fa1SBrad Love ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); 54b53f2fa1SBrad Love if (ret != 1) 55b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "i2c write error!\n"); 56b53f2fa1SBrad Love 57b53f2fa1SBrad Love return ret; 58b53f2fa1SBrad Love } 59b53f2fa1SBrad Love 60b53f2fa1SBrad Love static int mxl692_i2c_read(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) 61b53f2fa1SBrad Love { 62b53f2fa1SBrad Love int ret = 0; 63b53f2fa1SBrad Love struct i2c_msg msg = { 64b53f2fa1SBrad Love .addr = dev->i2c_client->addr, 65b53f2fa1SBrad Love .flags = I2C_M_RD, 66b53f2fa1SBrad Love .buf = buffer, 67b53f2fa1SBrad Love .len = buf_len 68b53f2fa1SBrad Love }; 69b53f2fa1SBrad Love 70b53f2fa1SBrad Love ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); 71b53f2fa1SBrad Love if (ret != 1) 72b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "i2c read error!\n"); 73b53f2fa1SBrad Love 74b53f2fa1SBrad Love return ret; 75b53f2fa1SBrad Love } 76b53f2fa1SBrad Love 77b53f2fa1SBrad Love static int convert_endian(u32 size, u8 *d) 78b53f2fa1SBrad Love { 79b53f2fa1SBrad Love u32 i; 80b53f2fa1SBrad Love 81b53f2fa1SBrad Love for (i = 0; i < (size & ~3); i += 4) { 82b53f2fa1SBrad Love d[i + 0] ^= d[i + 3]; 83b53f2fa1SBrad Love d[i + 3] ^= d[i + 0]; 84b53f2fa1SBrad Love d[i + 0] ^= d[i + 3]; 85b53f2fa1SBrad Love 86b53f2fa1SBrad Love d[i + 1] ^= d[i + 2]; 87b53f2fa1SBrad Love d[i + 2] ^= d[i + 1]; 88b53f2fa1SBrad Love d[i + 1] ^= d[i + 2]; 89b53f2fa1SBrad Love } 90b53f2fa1SBrad Love 91b53f2fa1SBrad Love switch (size & 3) { 92b53f2fa1SBrad Love case 0: 93b53f2fa1SBrad Love case 1: 94b53f2fa1SBrad Love /* do nothing */ 95b53f2fa1SBrad Love break; 96b53f2fa1SBrad Love case 2: 97b53f2fa1SBrad Love d[i + 0] ^= d[i + 1]; 98b53f2fa1SBrad Love d[i + 1] ^= d[i + 0]; 99b53f2fa1SBrad Love d[i + 0] ^= d[i + 1]; 100b53f2fa1SBrad Love break; 101b53f2fa1SBrad Love 102b53f2fa1SBrad Love case 3: 103b53f2fa1SBrad Love d[i + 0] ^= d[i + 2]; 104b53f2fa1SBrad Love d[i + 2] ^= d[i + 0]; 105b53f2fa1SBrad Love d[i + 0] ^= d[i + 2]; 106b53f2fa1SBrad Love break; 107b53f2fa1SBrad Love } 108b53f2fa1SBrad Love return size; 109b53f2fa1SBrad Love } 110b53f2fa1SBrad Love 111b53f2fa1SBrad Love static int convert_endian_n(int n, u32 size, u8 *d) 112b53f2fa1SBrad Love { 113b53f2fa1SBrad Love int i, count = 0; 114b53f2fa1SBrad Love 115b53f2fa1SBrad Love for (i = 0; i < n; i += size) 116b53f2fa1SBrad Love count += convert_endian(size, d + i); 117b53f2fa1SBrad Love return count; 118b53f2fa1SBrad Love } 119b53f2fa1SBrad Love 120b53f2fa1SBrad Love static void mxl692_tx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) 121b53f2fa1SBrad Love { 122b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 123b53f2fa1SBrad Love return; 124b53f2fa1SBrad Love #endif 125b53f2fa1SBrad Love buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ 126b53f2fa1SBrad Love 127b53f2fa1SBrad Love switch (opcode) { 128b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_DEVICE_INTR_MASK_SET: 129b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET: 130b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_SMA_TRANSMIT_SET: 131b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 132b53f2fa1SBrad Love break; 133b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_PARAMS_SET: 134b53f2fa1SBrad Love buffer += 5; 135b53f2fa1SBrad Love buffer += convert_endian(2 * sizeof(u32), buffer); 136b53f2fa1SBrad Love break; 137b53f2fa1SBrad Love default: 138b53f2fa1SBrad Love /* no swapping - all get opcodes */ 139b53f2fa1SBrad Love /* ATSC/OOB no swapping */ 140b53f2fa1SBrad Love break; 141b53f2fa1SBrad Love } 142b53f2fa1SBrad Love } 143b53f2fa1SBrad Love 144b53f2fa1SBrad Love static void mxl692_rx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) 145b53f2fa1SBrad Love { 146b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 147b53f2fa1SBrad Love return; 148b53f2fa1SBrad Love #endif 149b53f2fa1SBrad Love buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ 150b53f2fa1SBrad Love 151b53f2fa1SBrad Love switch (opcode) { 152b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_TUNER_AGC_STATUS_GET: 153b53f2fa1SBrad Love buffer++; 154b53f2fa1SBrad Love buffer += convert_endian(2 * sizeof(u16), buffer); 155b53f2fa1SBrad Love break; 156b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_STATUS_GET: 157b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 158b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 159b53f2fa1SBrad Love break; 160b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET: 161b53f2fa1SBrad Love buffer += convert_endian(3 * sizeof(u32), buffer); 162b53f2fa1SBrad Love break; 163b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_ATSC_EQUALIZER_FILTER_FFE_TAPS_GET: 164b53f2fa1SBrad Love buffer += convert_endian_n(24, sizeof(u16), buffer); 165b53f2fa1SBrad Love break; 166b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_STATUS_GET: 167b53f2fa1SBrad Love buffer += 8; 168b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 169b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 170b53f2fa1SBrad Love break; 171b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_ERROR_COUNTERS_GET: 172b53f2fa1SBrad Love buffer += convert_endian(7 * sizeof(u32), buffer); 173b53f2fa1SBrad Love break; 174b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_CONSTELLATION_VALUE_GET: 175b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_START_GET: 176b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_MIDDLE_GET: 177b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_END_GET: 178b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_START_GET: 179b53f2fa1SBrad Love buffer += convert_endian_n(24, sizeof(u16), buffer); 180b53f2fa1SBrad Love break; 181b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_END_GET: 182b53f2fa1SBrad Love buffer += convert_endian_n(8, sizeof(u16), buffer); 183b53f2fa1SBrad Love break; 184b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_FFE_GET: 185b53f2fa1SBrad Love buffer += convert_endian_n(17, sizeof(u16), buffer); 186b53f2fa1SBrad Love break; 187b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_OOB_ERROR_COUNTERS_GET: 188b53f2fa1SBrad Love buffer += convert_endian(3 * sizeof(u32), buffer); 189b53f2fa1SBrad Love break; 190b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_OOB_STATUS_GET: 191b53f2fa1SBrad Love buffer += convert_endian_n(2, sizeof(u16), buffer); 192b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 193b53f2fa1SBrad Love break; 194b53f2fa1SBrad Love case MXL_EAGLE_OPCODE_SMA_RECEIVE_GET: 195b53f2fa1SBrad Love buffer += convert_endian(sizeof(u32), buffer); 196b53f2fa1SBrad Love break; 197b53f2fa1SBrad Love default: 198b53f2fa1SBrad Love /* no swapping - all set opcodes */ 199b53f2fa1SBrad Love break; 200b53f2fa1SBrad Love } 201b53f2fa1SBrad Love } 202b53f2fa1SBrad Love 203b53f2fa1SBrad Love static u32 mxl692_checksum(u8 *buffer, u32 size) 204b53f2fa1SBrad Love { 205b53f2fa1SBrad Love u32 ix, div_size; 206b53f2fa1SBrad Love u32 cur_cksum = 0; 207b53f2fa1SBrad Love __be32 *buf; 208b53f2fa1SBrad Love 209b53f2fa1SBrad Love div_size = DIV_ROUND_UP(size, 4); 210b53f2fa1SBrad Love 211b53f2fa1SBrad Love buf = (__be32 *)buffer; 212b53f2fa1SBrad Love for (ix = 0; ix < div_size; ix++) 213b53f2fa1SBrad Love cur_cksum += be32_to_cpu(buf[ix]); 214b53f2fa1SBrad Love 215b53f2fa1SBrad Love cur_cksum ^= 0xDEADBEEF; 216b53f2fa1SBrad Love 217b53f2fa1SBrad Love return cur_cksum; 218b53f2fa1SBrad Love } 219b53f2fa1SBrad Love 220b53f2fa1SBrad Love static int mxl692_validate_fw_header(struct mxl692_dev *dev, 221b53f2fa1SBrad Love const u8 *buffer, u32 buf_len) 222b53f2fa1SBrad Love { 223b53f2fa1SBrad Love int status = 0; 224b53f2fa1SBrad Love u32 ix, temp; 225b53f2fa1SBrad Love __be32 *local_buf = NULL; 226b53f2fa1SBrad Love u8 temp_cksum = 0; 227*bc4f21fcSColin Ian King static const u8 fw_hdr[] = { 228*bc4f21fcSColin Ian King 0x4D, 0x31, 0x10, 0x02, 0x40, 0x00, 0x00, 0x80 229*bc4f21fcSColin Ian King }; 230b53f2fa1SBrad Love 231b53f2fa1SBrad Love if (memcmp(buffer, fw_hdr, 8) != 0) { 232b53f2fa1SBrad Love status = -EINVAL; 233b53f2fa1SBrad Love goto err_finish; 234b53f2fa1SBrad Love } 235b53f2fa1SBrad Love 236b53f2fa1SBrad Love local_buf = (__be32 *)(buffer + 8); 237b53f2fa1SBrad Love temp = be32_to_cpu(*local_buf); 238b53f2fa1SBrad Love 239b53f2fa1SBrad Love if ((buf_len - 16) != temp >> 8) { 240b53f2fa1SBrad Love status = -EINVAL; 241b53f2fa1SBrad Love goto err_finish; 242b53f2fa1SBrad Love } 243b53f2fa1SBrad Love 244b53f2fa1SBrad Love for (ix = 16; ix < buf_len; ix++) 245b53f2fa1SBrad Love temp_cksum += buffer[ix]; 246b53f2fa1SBrad Love 247b53f2fa1SBrad Love if (temp_cksum != buffer[11]) 248b53f2fa1SBrad Love status = -EINVAL; 249b53f2fa1SBrad Love 250b53f2fa1SBrad Love err_finish: 251b53f2fa1SBrad Love if (status) 252b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "failed\n"); 253b53f2fa1SBrad Love return status; 254b53f2fa1SBrad Love } 255b53f2fa1SBrad Love 256b53f2fa1SBrad Love static int mxl692_write_fw_block(struct mxl692_dev *dev, const u8 *buffer, 257b53f2fa1SBrad Love u32 buf_len, u32 *index) 258b53f2fa1SBrad Love { 259b53f2fa1SBrad Love int status = 0; 260b53f2fa1SBrad Love u32 ix = 0, total_len = 0, addr = 0, chunk_len = 0, prevchunk_len = 0; 261b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 262b53f2fa1SBrad Love int payload_max = MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE; 263b53f2fa1SBrad Love 264b53f2fa1SBrad Love ix = *index; 265b53f2fa1SBrad Love 266b53f2fa1SBrad Love if (buffer[ix] == 0x53) { 267b53f2fa1SBrad Love total_len = buffer[ix + 1] << 16 | buffer[ix + 2] << 8 | buffer[ix + 3]; 268b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; 269b53f2fa1SBrad Love addr = buffer[ix + 4] << 24 | buffer[ix + 5] << 16 | 270b53f2fa1SBrad Love buffer[ix + 6] << 8 | buffer[ix + 7]; 271b53f2fa1SBrad Love ix += MXL_EAGLE_FW_SEGMENT_HEADER_SIZE; 272b53f2fa1SBrad Love 273b53f2fa1SBrad Love while ((total_len > 0) && (status == 0)) { 274b53f2fa1SBrad Love plocal_buf = local_buf; 275b53f2fa1SBrad Love chunk_len = (total_len < payload_max) ? total_len : payload_max; 276b53f2fa1SBrad Love 277b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 278b53f2fa1SBrad Love *plocal_buf++ = chunk_len + sizeof(u32); 279b53f2fa1SBrad Love 280b53f2fa1SBrad Love *(u32 *)plocal_buf = addr + prevchunk_len; 281b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 282b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 283b53f2fa1SBrad Love #endif 284b53f2fa1SBrad Love plocal_buf += sizeof(u32); 285b53f2fa1SBrad Love 286b53f2fa1SBrad Love memcpy(plocal_buf, &buffer[ix], chunk_len); 287b53f2fa1SBrad Love convert_endian(chunk_len, plocal_buf); 288b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 289b53f2fa1SBrad Love (chunk_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 290b53f2fa1SBrad Love status = -EREMOTEIO; 291b53f2fa1SBrad Love break; 292b53f2fa1SBrad Love } 293b53f2fa1SBrad Love 294b53f2fa1SBrad Love prevchunk_len += chunk_len; 295b53f2fa1SBrad Love total_len -= chunk_len; 296b53f2fa1SBrad Love ix += chunk_len; 297b53f2fa1SBrad Love } 298b53f2fa1SBrad Love *index = ix; 299b53f2fa1SBrad Love } else { 300b53f2fa1SBrad Love status = -EINVAL; 301b53f2fa1SBrad Love } 302b53f2fa1SBrad Love 303b53f2fa1SBrad Love if (status) 304b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 305b53f2fa1SBrad Love 306b53f2fa1SBrad Love return status; 307b53f2fa1SBrad Love } 308b53f2fa1SBrad Love 309b53f2fa1SBrad Love static int mxl692_memwrite(struct mxl692_dev *dev, u32 addr, 310b53f2fa1SBrad Love u8 *buffer, u32 size) 311b53f2fa1SBrad Love { 312b53f2fa1SBrad Love int status = 0, total_len = 0; 313b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 314b53f2fa1SBrad Love 315b53f2fa1SBrad Love total_len = size; 316b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 317b53f2fa1SBrad Love 318b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE)) 319b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 320b53f2fa1SBrad Love 321b53f2fa1SBrad Love plocal_buf = local_buf; 322b53f2fa1SBrad Love 323b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 324b53f2fa1SBrad Love *plocal_buf++ = total_len + sizeof(u32); 325b53f2fa1SBrad Love 326b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 327b53f2fa1SBrad Love plocal_buf += sizeof(u32); 328b53f2fa1SBrad Love 329b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 330b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 331b53f2fa1SBrad Love convert_endian(sizeof(u32) + total_len, local_buf + 2); 332b53f2fa1SBrad Love #endif 333b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 334b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 335b53f2fa1SBrad Love status = -EREMOTEIO; 336b53f2fa1SBrad Love goto err_finish; 337b53f2fa1SBrad Love } 338b53f2fa1SBrad Love 339b53f2fa1SBrad Love return status; 340b53f2fa1SBrad Love err_finish: 341b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 342b53f2fa1SBrad Love return status; 343b53f2fa1SBrad Love } 344b53f2fa1SBrad Love 345b53f2fa1SBrad Love static int mxl692_memread(struct mxl692_dev *dev, u32 addr, 346b53f2fa1SBrad Love u8 *buffer, u32 size) 347b53f2fa1SBrad Love { 348b53f2fa1SBrad Love int status = 0; 349b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_MHEADER_SIZE] = {}, *plocal_buf = NULL; 350b53f2fa1SBrad Love 351b53f2fa1SBrad Love plocal_buf = local_buf; 352b53f2fa1SBrad Love 353b53f2fa1SBrad Love *plocal_buf++ = 0xFB; 354b53f2fa1SBrad Love *plocal_buf++ = sizeof(u32); 355b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 356b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 357b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 358b53f2fa1SBrad Love #endif 359b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 360b53f2fa1SBrad Love 361b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_MHEADER_SIZE) > 0) { 362b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 363b53f2fa1SBrad Love status = mxl692_i2c_read(dev, buffer, (u16)size) < 0 ? -EREMOTEIO : 0; 364b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 365b53f2fa1SBrad Love if (status == 0) 366b53f2fa1SBrad Love convert_endian(size, buffer); 367b53f2fa1SBrad Love #endif 368b53f2fa1SBrad Love } else { 369b53f2fa1SBrad Love status = -EREMOTEIO; 370b53f2fa1SBrad Love } 371b53f2fa1SBrad Love 372b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 373b53f2fa1SBrad Love 374b53f2fa1SBrad Love if (status) 375b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 376b53f2fa1SBrad Love 377b53f2fa1SBrad Love return status; 378b53f2fa1SBrad Love } 379b53f2fa1SBrad Love 380b53f2fa1SBrad Love static const char *mxl692_opcode_string(u8 opcode) 381b53f2fa1SBrad Love { 38241033690SJiapeng Chong if (opcode <= MXL_EAGLE_OPCODE_INTERNAL) 383b53f2fa1SBrad Love return MXL_EAGLE_OPCODE_STRING[opcode]; 384b53f2fa1SBrad Love 385b53f2fa1SBrad Love return "invalid opcode"; 386b53f2fa1SBrad Love } 387b53f2fa1SBrad Love 388b53f2fa1SBrad Love static int mxl692_opwrite(struct mxl692_dev *dev, u8 *buffer, 389b53f2fa1SBrad Love u32 size) 390b53f2fa1SBrad Love { 391b53f2fa1SBrad Love int status = 0, total_len = 0; 392b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 393b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_hdr = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)buffer; 394b53f2fa1SBrad Love 395b53f2fa1SBrad Love total_len = size; 396b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 397b53f2fa1SBrad Love 398b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) 399b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 400b53f2fa1SBrad Love 401b53f2fa1SBrad Love plocal_buf = local_buf; 402b53f2fa1SBrad Love 403b53f2fa1SBrad Love *plocal_buf++ = 0xFE; 404b53f2fa1SBrad Love *plocal_buf++ = (u8)total_len; 405b53f2fa1SBrad Love 406b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 407b53f2fa1SBrad Love convert_endian(total_len, plocal_buf); 408b53f2fa1SBrad Love 409b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 410b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_PHEADER_SIZE)) < 0) { 411b53f2fa1SBrad Love status = -EREMOTEIO; 412b53f2fa1SBrad Love goto err_finish; 413b53f2fa1SBrad Love } 414b53f2fa1SBrad Love err_finish: 415b53f2fa1SBrad Love if (status) 416b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "opcode %s err %d\n", 417b53f2fa1SBrad Love mxl692_opcode_string(tx_hdr->opcode), status); 418b53f2fa1SBrad Love return status; 419b53f2fa1SBrad Love } 420b53f2fa1SBrad Love 421b53f2fa1SBrad Love static int mxl692_opread(struct mxl692_dev *dev, u8 *buffer, 422b53f2fa1SBrad Love u32 size) 423b53f2fa1SBrad Love { 424b53f2fa1SBrad Love int status = 0; 425b53f2fa1SBrad Love u32 ix = 0; 426b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_PHEADER_SIZE] = {}; 427b53f2fa1SBrad Love 428b53f2fa1SBrad Love local_buf[0] = 0xFD; 429b53f2fa1SBrad Love local_buf[1] = 0; 430b53f2fa1SBrad Love 431b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_PHEADER_SIZE) > 0) { 432b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 433b53f2fa1SBrad Love 434b53f2fa1SBrad Love /* Read in 4 byte chunks */ 435b53f2fa1SBrad Love for (ix = 0; ix < size; ix += 4) { 436b53f2fa1SBrad Love if (mxl692_i2c_read(dev, buffer + ix, 4) < 0) { 437b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "ix=%d size=%d\n", ix, size); 438b53f2fa1SBrad Love status = -EREMOTEIO; 439b53f2fa1SBrad Love goto err_finish; 440b53f2fa1SBrad Love } 441b53f2fa1SBrad Love } 442b53f2fa1SBrad Love convert_endian(size, buffer); 443b53f2fa1SBrad Love } else { 444b53f2fa1SBrad Love status = -EREMOTEIO; 445b53f2fa1SBrad Love } 446b53f2fa1SBrad Love err_finish: 447b53f2fa1SBrad Love if (status) 448b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 449b53f2fa1SBrad Love return status; 450b53f2fa1SBrad Love } 451b53f2fa1SBrad Love 452b53f2fa1SBrad Love static int mxl692_i2c_writeread(struct mxl692_dev *dev, 453b53f2fa1SBrad Love u8 opcode, 454b53f2fa1SBrad Love u8 *tx_payload, 455b53f2fa1SBrad Love u8 tx_payload_size, 456b53f2fa1SBrad Love u8 *rx_payload, 457b53f2fa1SBrad Love u8 rx_payload_expected) 458b53f2fa1SBrad Love { 459b53f2fa1SBrad Love int status = 0, timeout = 40; 460b53f2fa1SBrad Love u8 tx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 461b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 462b53f2fa1SBrad Love u32 resp_checksum = 0, resp_checksum_tmp = 0; 463b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_header; 464b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *rx_header; 465b53f2fa1SBrad Love 466b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 467b53f2fa1SBrad Love 468b53f2fa1SBrad Love if ((tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE) > 469b53f2fa1SBrad Love (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) { 470b53f2fa1SBrad Love status = -EINVAL; 471b53f2fa1SBrad Love goto err_finish; 472b53f2fa1SBrad Love } 473b53f2fa1SBrad Love 474b53f2fa1SBrad Love tx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)tx_buf; 475b53f2fa1SBrad Love tx_header->opcode = opcode; 476b53f2fa1SBrad Love tx_header->seqnum = dev->seqnum++; 477b53f2fa1SBrad Love tx_header->payload_size = tx_payload_size; 478b53f2fa1SBrad Love tx_header->checksum = 0; 479b53f2fa1SBrad Love 480b53f2fa1SBrad Love if (dev->seqnum == 0) 481b53f2fa1SBrad Love dev->seqnum = 1; 482b53f2fa1SBrad Love 483b53f2fa1SBrad Love if (tx_payload && tx_payload_size > 0) 484b53f2fa1SBrad Love memcpy(&tx_buf[MXL_EAGLE_HOST_MSG_HEADER_SIZE], tx_payload, tx_payload_size); 485b53f2fa1SBrad Love 486b53f2fa1SBrad Love mxl692_tx_swap(opcode, tx_buf); 487b53f2fa1SBrad Love 488b53f2fa1SBrad Love tx_header->checksum = 0; 489b53f2fa1SBrad Love tx_header->checksum = mxl692_checksum(tx_buf, 490b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + tx_payload_size); 491b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 492b53f2fa1SBrad Love convert_endian(4, (u8 *)&tx_header->checksum); /* cksum is big endian */ 493b53f2fa1SBrad Love #endif 494b53f2fa1SBrad Love /* send Tx message */ 495b53f2fa1SBrad Love status = mxl692_opwrite(dev, tx_buf, 496b53f2fa1SBrad Love tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 497b53f2fa1SBrad Love if (status) { 498b53f2fa1SBrad Love status = -EREMOTEIO; 499b53f2fa1SBrad Love goto err_finish; 500b53f2fa1SBrad Love } 501b53f2fa1SBrad Love 502b53f2fa1SBrad Love /* receive Rx message (polling) */ 503b53f2fa1SBrad Love rx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)rx_buf; 504b53f2fa1SBrad Love 505b53f2fa1SBrad Love do { 506b53f2fa1SBrad Love status = mxl692_opread(dev, rx_buf, 507b53f2fa1SBrad Love rx_payload_expected + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 508b53f2fa1SBrad Love usleep_range(1000, 2000); 509b53f2fa1SBrad Love timeout--; 510b53f2fa1SBrad Love } while ((timeout > 0) && (status == 0) && 511b53f2fa1SBrad Love (rx_header->seqnum == 0) && 512b53f2fa1SBrad Love (rx_header->checksum == 0)); 513b53f2fa1SBrad Love 514b53f2fa1SBrad Love if (timeout == 0 || status) { 515b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "timeout=%d status=%d\n", 516b53f2fa1SBrad Love timeout, status); 517b53f2fa1SBrad Love status = -ETIMEDOUT; 518b53f2fa1SBrad Love goto err_finish; 519b53f2fa1SBrad Love } 520b53f2fa1SBrad Love 521b53f2fa1SBrad Love if (rx_header->status) { 522b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx header status code: %d\n", rx_header->status); 523b53f2fa1SBrad Love status = -EREMOTEIO; 524b53f2fa1SBrad Love goto err_finish; 525b53f2fa1SBrad Love } 526b53f2fa1SBrad Love 527b53f2fa1SBrad Love if (rx_header->seqnum != tx_header->seqnum || 528b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode || 529b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected) { 530b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "Something failed seq=%s opcode=%s pSize=%s\n", 531b53f2fa1SBrad Love rx_header->seqnum != tx_header->seqnum ? "X" : "0", 532b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode ? "X" : "0", 533b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected ? "X" : "0"); 534b53f2fa1SBrad Love if (rx_header->payload_size != rx_payload_expected) 535b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 536b53f2fa1SBrad Love "rx_header->payloadSize=%d rx_payload_expected=%d\n", 537b53f2fa1SBrad Love rx_header->payload_size, rx_payload_expected); 538b53f2fa1SBrad Love status = -EREMOTEIO; 539b53f2fa1SBrad Love goto err_finish; 540b53f2fa1SBrad Love } 541b53f2fa1SBrad Love 542b53f2fa1SBrad Love resp_checksum = rx_header->checksum; 543b53f2fa1SBrad Love rx_header->checksum = 0; 544b53f2fa1SBrad Love 545b53f2fa1SBrad Love resp_checksum_tmp = mxl692_checksum(rx_buf, 546b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + rx_header->payload_size); 547b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 548b53f2fa1SBrad Love convert_endian(4, (u8 *)&resp_checksum_tmp); /* cksum is big endian */ 549b53f2fa1SBrad Love #endif 550b53f2fa1SBrad Love if (resp_checksum != resp_checksum_tmp) { 551b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx checksum failure\n"); 552b53f2fa1SBrad Love status = -EREMOTEIO; 553b53f2fa1SBrad Love goto err_finish; 554b53f2fa1SBrad Love } 555b53f2fa1SBrad Love 556b53f2fa1SBrad Love mxl692_rx_swap(rx_header->opcode, rx_buf); 557b53f2fa1SBrad Love 558b53f2fa1SBrad Love if (rx_header->payload_size > 0) { 559b53f2fa1SBrad Love if (!rx_payload) { 560b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "no rx payload?!?\n"); 561b53f2fa1SBrad Love status = -EREMOTEIO; 562b53f2fa1SBrad Love goto err_finish; 563b53f2fa1SBrad Love } 564b53f2fa1SBrad Love memcpy(rx_payload, rx_buf + MXL_EAGLE_HOST_MSG_HEADER_SIZE, 565b53f2fa1SBrad Love rx_header->payload_size); 566b53f2fa1SBrad Love } 567b53f2fa1SBrad Love err_finish: 568b53f2fa1SBrad Love if (status) 569b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 570b53f2fa1SBrad Love 571b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 572b53f2fa1SBrad Love return status; 573b53f2fa1SBrad Love } 574b53f2fa1SBrad Love 575b53f2fa1SBrad Love static int mxl692_fwdownload(struct mxl692_dev *dev, 576b53f2fa1SBrad Love const u8 *firmware_buf, u32 buf_len) 577b53f2fa1SBrad Love { 578b53f2fa1SBrad Love int status = 0; 579b53f2fa1SBrad Love u32 ix, reg_val = 0x1; 580b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 581b53f2fa1SBrad Love struct MXL_EAGLE_DEV_STATUS_T *dev_status; 582b53f2fa1SBrad Love 583b53f2fa1SBrad Love if (buf_len < MXL_EAGLE_FW_HEADER_SIZE || 584b53f2fa1SBrad Love buf_len > MXL_EAGLE_FW_MAX_SIZE_IN_KB * 1000) 585b53f2fa1SBrad Love return -EINVAL; 586b53f2fa1SBrad Love 587b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 588b53f2fa1SBrad Love 589b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 590b53f2fa1SBrad Love 591b53f2fa1SBrad Love status = mxl692_validate_fw_header(dev, firmware_buf, buf_len); 592b53f2fa1SBrad Love if (status) 593b53f2fa1SBrad Love goto err_finish; 594b53f2fa1SBrad Love 595b53f2fa1SBrad Love ix = 16; 596b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* DRAM */ 597b53f2fa1SBrad Love if (status) 598b53f2fa1SBrad Love goto err_finish; 599b53f2fa1SBrad Love 600b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* IRAM */ 601b53f2fa1SBrad Love if (status) 602b53f2fa1SBrad Love goto err_finish; 603b53f2fa1SBrad Love 604b53f2fa1SBrad Love /* release CPU from reset */ 605b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 606b53f2fa1SBrad Love if (status) 607b53f2fa1SBrad Love goto err_finish; 608b53f2fa1SBrad Love 609b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 610b53f2fa1SBrad Love 611b53f2fa1SBrad Love if (status == 0) { 612b53f2fa1SBrad Love /* verify FW is alive */ 613b53f2fa1SBrad Love usleep_range(MXL_EAGLE_FW_LOAD_TIME * 1000, (MXL_EAGLE_FW_LOAD_TIME + 5) * 1000); 614b53f2fa1SBrad Love dev_status = (struct MXL_EAGLE_DEV_STATUS_T *)&rx_buf; 615b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 616b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_STATUS_GET, 617b53f2fa1SBrad Love NULL, 618b53f2fa1SBrad Love 0, 619b53f2fa1SBrad Love (u8 *)dev_status, 620b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_STATUS_T)); 621b53f2fa1SBrad Love } 622b53f2fa1SBrad Love 623b53f2fa1SBrad Love return status; 624b53f2fa1SBrad Love err_finish: 625b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 626b53f2fa1SBrad Love if (status) 627b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 628b53f2fa1SBrad Love return status; 629b53f2fa1SBrad Love } 630b53f2fa1SBrad Love 631b53f2fa1SBrad Love static int mxl692_get_versions(struct mxl692_dev *dev) 632b53f2fa1SBrad Love { 633b53f2fa1SBrad Love int status = 0; 634b53f2fa1SBrad Love struct MXL_EAGLE_DEV_VER_T dev_ver = {}; 635b53f2fa1SBrad Love static const char * const chip_id[] = {"N/A", "691", "248", "692"}; 636b53f2fa1SBrad Love 637b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, MXL_EAGLE_OPCODE_DEVICE_VERSION_GET, 638b53f2fa1SBrad Love NULL, 639b53f2fa1SBrad Love 0, 640b53f2fa1SBrad Love (u8 *)&dev_ver, 641b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_VER_T)); 642b53f2fa1SBrad Love if (status) 643b53f2fa1SBrad Love return status; 644b53f2fa1SBrad Love 645b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, "MxL692_DEMOD Chip ID: %s\n", 646b53f2fa1SBrad Love chip_id[dev_ver.chip_id]); 647b53f2fa1SBrad Love 648b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, 649b53f2fa1SBrad Love "MxL692_DEMOD FW Version: %d.%d.%d.%d_RC%d\n", 650b53f2fa1SBrad Love dev_ver.firmware_ver[0], 651b53f2fa1SBrad Love dev_ver.firmware_ver[1], 652b53f2fa1SBrad Love dev_ver.firmware_ver[2], 653b53f2fa1SBrad Love dev_ver.firmware_ver[3], 654b53f2fa1SBrad Love dev_ver.firmware_ver[4]); 655b53f2fa1SBrad Love 656b53f2fa1SBrad Love return status; 657b53f2fa1SBrad Love } 658b53f2fa1SBrad Love 659b53f2fa1SBrad Love static int mxl692_reset(struct mxl692_dev *dev) 660b53f2fa1SBrad Love { 661b53f2fa1SBrad Love int status = 0; 662b53f2fa1SBrad Love u32 dev_type = MXL_EAGLE_DEVICE_MAX, reg_val = 0x2; 663b53f2fa1SBrad Love 664b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 665b53f2fa1SBrad Love 666b53f2fa1SBrad Love /* legacy i2c override */ 667b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x80000100, (u8 *)®_val, sizeof(u32)); 668b53f2fa1SBrad Love if (status) 669b53f2fa1SBrad Love goto err_finish; 670b53f2fa1SBrad Love 671b53f2fa1SBrad Love /* verify sku */ 672b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000188, (u8 *)&dev_type, sizeof(u32)); 673b53f2fa1SBrad Love if (status) 674b53f2fa1SBrad Love goto err_finish; 675b53f2fa1SBrad Love 676b53f2fa1SBrad Love if (dev_type != dev->device_type) 677b53f2fa1SBrad Love goto err_finish; 678b53f2fa1SBrad Love 679b53f2fa1SBrad Love err_finish: 680b53f2fa1SBrad Love if (status) 681b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 682b53f2fa1SBrad Love return status; 683b53f2fa1SBrad Love } 684b53f2fa1SBrad Love 685b53f2fa1SBrad Love static int mxl692_config_regulators(struct mxl692_dev *dev, 686b53f2fa1SBrad Love enum MXL_EAGLE_POWER_SUPPLY_SOURCE_E power_supply) 687b53f2fa1SBrad Love { 688b53f2fa1SBrad Love int status = 0; 689b53f2fa1SBrad Love u32 reg_val; 690b53f2fa1SBrad Love 691b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 692b53f2fa1SBrad Love 693b53f2fa1SBrad Love /* configure main regulator according to the power supply source */ 694b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 695b53f2fa1SBrad Love if (status) 696b53f2fa1SBrad Love goto err_finish; 697b53f2fa1SBrad Love 698b53f2fa1SBrad Love reg_val &= 0x00FFFFFF; 699b53f2fa1SBrad Love reg_val |= (power_supply == MXL_EAGLE_POWER_SUPPLY_SOURCE_SINGLE) ? 700b53f2fa1SBrad Love 0x14000000 : 0x10000000; 701b53f2fa1SBrad Love 702b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 703b53f2fa1SBrad Love if (status) 704b53f2fa1SBrad Love goto err_finish; 705b53f2fa1SBrad Love 706b53f2fa1SBrad Love /* configure digital regulator to high current mode */ 707b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 708b53f2fa1SBrad Love if (status) 709b53f2fa1SBrad Love goto err_finish; 710b53f2fa1SBrad Love 711b53f2fa1SBrad Love reg_val |= 0x800; 712b53f2fa1SBrad Love 713b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 714b53f2fa1SBrad Love 715b53f2fa1SBrad Love err_finish: 716b53f2fa1SBrad Love if (status) 717b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 718b53f2fa1SBrad Love return status; 719b53f2fa1SBrad Love } 720b53f2fa1SBrad Love 721b53f2fa1SBrad Love static int mxl692_config_xtal(struct mxl692_dev *dev, 722b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T *dev_xtal) 723b53f2fa1SBrad Love { 724b53f2fa1SBrad Love int status = 0; 725b53f2fa1SBrad Love u32 reg_val, reg_val1; 726b53f2fa1SBrad Love 727b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 728b53f2fa1SBrad Love 729b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 730b53f2fa1SBrad Love if (status) 731b53f2fa1SBrad Love goto err_finish; 732b53f2fa1SBrad Love 733b53f2fa1SBrad Love /* set XTAL capacitance */ 734b53f2fa1SBrad Love reg_val &= 0xFFFFFFE0; 735b53f2fa1SBrad Love reg_val |= dev_xtal->xtal_cap; 736b53f2fa1SBrad Love 737b53f2fa1SBrad Love /* set CLK OUT */ 738b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_enable ? (reg_val | 0x0100) : (reg_val & 0xFFFFFEFF); 739b53f2fa1SBrad Love 740b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 741b53f2fa1SBrad Love if (status) 742b53f2fa1SBrad Love goto err_finish; 743b53f2fa1SBrad Love 744b53f2fa1SBrad Love /* set CLK OUT divider */ 745b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_div_enable ? (reg_val | 0x0200) : (reg_val & 0xFFFFFDFF); 746b53f2fa1SBrad Love 747b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 748b53f2fa1SBrad Love if (status) 749b53f2fa1SBrad Love goto err_finish; 750b53f2fa1SBrad Love 751b53f2fa1SBrad Love /* set XTAL sharing */ 752b53f2fa1SBrad Love reg_val = dev_xtal->xtal_sharing_enable ? (reg_val | 0x010400) : (reg_val & 0xFFFEFBFF); 753b53f2fa1SBrad Love 754b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 755b53f2fa1SBrad Love if (status) 756b53f2fa1SBrad Love goto err_finish; 757b53f2fa1SBrad Love 758b53f2fa1SBrad Love /* enable/disable XTAL calibration, based on master/slave device */ 759b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 760b53f2fa1SBrad Love if (status) 761b53f2fa1SBrad Love goto err_finish; 762b53f2fa1SBrad Love 763b53f2fa1SBrad Love if (dev_xtal->xtal_calibration_enable) { 764b53f2fa1SBrad Love /* enable XTAL calibration and set XTAL amplitude to a higher value */ 765b53f2fa1SBrad Love reg_val1 &= 0xFFFFFFFD; 766b53f2fa1SBrad Love reg_val1 |= 0x30; 767b53f2fa1SBrad Love 768b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 769b53f2fa1SBrad Love if (status) 770b53f2fa1SBrad Love goto err_finish; 771b53f2fa1SBrad Love } else { 772b53f2fa1SBrad Love /* disable XTAL calibration */ 773b53f2fa1SBrad Love reg_val1 |= 0x2; 774b53f2fa1SBrad Love 775b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 776b53f2fa1SBrad Love if (status) 777b53f2fa1SBrad Love goto err_finish; 778b53f2fa1SBrad Love 779b53f2fa1SBrad Love /* set XTAL bias value */ 780b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 781b53f2fa1SBrad Love if (status) 782b53f2fa1SBrad Love goto err_finish; 783b53f2fa1SBrad Love 784b53f2fa1SBrad Love reg_val &= 0xC0FFFFFF; 785b53f2fa1SBrad Love reg_val |= 0xA000000; 786b53f2fa1SBrad Love 787b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 788b53f2fa1SBrad Love if (status) 789b53f2fa1SBrad Love goto err_finish; 790b53f2fa1SBrad Love } 791b53f2fa1SBrad Love 792b53f2fa1SBrad Love /* start XTAL calibration */ 793b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 794b53f2fa1SBrad Love if (status) 795b53f2fa1SBrad Love goto err_finish; 796b53f2fa1SBrad Love 797b53f2fa1SBrad Love reg_val |= 0x8; 798b53f2fa1SBrad Love 799b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 800b53f2fa1SBrad Love if (status) 801b53f2fa1SBrad Love goto err_finish; 802b53f2fa1SBrad Love 803b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 804b53f2fa1SBrad Love if (status) 805b53f2fa1SBrad Love goto err_finish; 806b53f2fa1SBrad Love 807b53f2fa1SBrad Love reg_val |= 0x10; 808b53f2fa1SBrad Love 809b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 810b53f2fa1SBrad Love if (status) 811b53f2fa1SBrad Love goto err_finish; 812b53f2fa1SBrad Love 813b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 814b53f2fa1SBrad Love if (status) 815b53f2fa1SBrad Love goto err_finish; 816b53f2fa1SBrad Love 817b53f2fa1SBrad Love reg_val &= 0xFFFFEFFF; 818b53f2fa1SBrad Love 819b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 820b53f2fa1SBrad Love if (status) 821b53f2fa1SBrad Love goto err_finish; 822b53f2fa1SBrad Love 823b53f2fa1SBrad Love reg_val |= 0x1000; 824b53f2fa1SBrad Love 825b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 826b53f2fa1SBrad Love if (status) 827b53f2fa1SBrad Love goto err_finish; 828b53f2fa1SBrad Love 829b53f2fa1SBrad Love usleep_range(45000, 55000); 830b53f2fa1SBrad Love 831b53f2fa1SBrad Love err_finish: 832b53f2fa1SBrad Love if (status) 833b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 834b53f2fa1SBrad Love return status; 835b53f2fa1SBrad Love } 836b53f2fa1SBrad Love 837b53f2fa1SBrad Love static int mxl692_powermode(struct mxl692_dev *dev, 838b53f2fa1SBrad Love enum MXL_EAGLE_POWER_MODE_E power_mode) 839b53f2fa1SBrad Love { 840b53f2fa1SBrad Love int status = 0; 841b53f2fa1SBrad Love u8 mode = power_mode; 842b53f2fa1SBrad Love 843b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%s\n", 844b53f2fa1SBrad Love power_mode == MXL_EAGLE_POWER_MODE_SLEEP ? "sleep" : "active"); 845b53f2fa1SBrad Love 846b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 847b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_POWERMODE_SET, 848b53f2fa1SBrad Love &mode, 849b53f2fa1SBrad Love sizeof(u8), 850b53f2fa1SBrad Love NULL, 851b53f2fa1SBrad Love 0); 852b53f2fa1SBrad Love if (status) { 853b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 854b53f2fa1SBrad Love return status; 855b53f2fa1SBrad Love } 856b53f2fa1SBrad Love 857b53f2fa1SBrad Love dev->power_mode = power_mode; 858b53f2fa1SBrad Love 859b53f2fa1SBrad Love return status; 860b53f2fa1SBrad Love } 861b53f2fa1SBrad Love 862b53f2fa1SBrad Love static int mxl692_init(struct dvb_frontend *fe) 863b53f2fa1SBrad Love { 864b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 865b53f2fa1SBrad Love struct i2c_client *client = dev->i2c_client; 866b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 867b53f2fa1SBrad Love int status = 0; 868b53f2fa1SBrad Love const struct firmware *firmware; 869b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T xtal_config = {}; 870b53f2fa1SBrad Love 871b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 872b53f2fa1SBrad Love 873b53f2fa1SBrad Love if (dev->init_done) 874b53f2fa1SBrad Love goto warm; 875b53f2fa1SBrad Love 876b53f2fa1SBrad Love dev->seqnum = 1; 877b53f2fa1SBrad Love 878b53f2fa1SBrad Love status = mxl692_reset(dev); 879b53f2fa1SBrad Love if (status) 880b53f2fa1SBrad Love goto err; 881b53f2fa1SBrad Love 882b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 1000! */ 883b53f2fa1SBrad Love 884b53f2fa1SBrad Love status = mxl692_config_regulators(dev, MXL_EAGLE_POWER_SUPPLY_SOURCE_DUAL); 885b53f2fa1SBrad Love if (status) 886b53f2fa1SBrad Love goto err; 887b53f2fa1SBrad Love 888b53f2fa1SBrad Love xtal_config.xtal_cap = 26; 889b53f2fa1SBrad Love xtal_config.clk_out_div_enable = 0; 890b53f2fa1SBrad Love xtal_config.clk_out_enable = 0; 891b53f2fa1SBrad Love xtal_config.xtal_calibration_enable = 0; 892b53f2fa1SBrad Love xtal_config.xtal_sharing_enable = 1; 893b53f2fa1SBrad Love status = mxl692_config_xtal(dev, &xtal_config); 894b53f2fa1SBrad Love if (status) 895b53f2fa1SBrad Love goto err; 896b53f2fa1SBrad Love 897b53f2fa1SBrad Love status = request_firmware(&firmware, MXL692_FIRMWARE, &client->dev); 898b53f2fa1SBrad Love if (status) { 899b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "firmware missing? %s\n", 900b53f2fa1SBrad Love MXL692_FIRMWARE); 901b53f2fa1SBrad Love goto err; 902b53f2fa1SBrad Love } 903b53f2fa1SBrad Love 904b53f2fa1SBrad Love status = mxl692_fwdownload(dev, firmware->data, firmware->size); 905b53f2fa1SBrad Love if (status) 906b53f2fa1SBrad Love goto err_release_firmware; 907b53f2fa1SBrad Love 908b53f2fa1SBrad Love release_firmware(firmware); 909b53f2fa1SBrad Love 910b53f2fa1SBrad Love status = mxl692_get_versions(dev); 911b53f2fa1SBrad Love if (status) 912b53f2fa1SBrad Love goto err; 913b53f2fa1SBrad Love 914b53f2fa1SBrad Love dev->power_mode = MXL_EAGLE_POWER_MODE_SLEEP; 915b53f2fa1SBrad Love warm: 916b53f2fa1SBrad Love /* Config Device Power Mode */ 917b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_ACTIVE) { 918b53f2fa1SBrad Love status = mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_ACTIVE); 919b53f2fa1SBrad Love if (status) 920b53f2fa1SBrad Love goto err; 921b53f2fa1SBrad Love 922b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 500! */ 923b53f2fa1SBrad Love } 924b53f2fa1SBrad Love 925b53f2fa1SBrad Love /* Init stats here to indicate which stats are supported */ 926b53f2fa1SBrad Love c->cnr.len = 1; 927b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 928b53f2fa1SBrad Love c->post_bit_error.len = 1; 929b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 930b53f2fa1SBrad Love c->post_bit_count.len = 1; 931b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 932b53f2fa1SBrad Love c->block_error.len = 1; 933b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 934b53f2fa1SBrad Love 935b53f2fa1SBrad Love dev->init_done = 1; 936b53f2fa1SBrad Love return 0; 937b53f2fa1SBrad Love err_release_firmware: 938b53f2fa1SBrad Love release_firmware(firmware); 939b53f2fa1SBrad Love err: 940b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 941b53f2fa1SBrad Love return status; 942b53f2fa1SBrad Love } 943b53f2fa1SBrad Love 944b53f2fa1SBrad Love static int mxl692_sleep(struct dvb_frontend *fe) 945b53f2fa1SBrad Love { 946b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 947b53f2fa1SBrad Love 948b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_SLEEP) 949b53f2fa1SBrad Love mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_SLEEP); 950b53f2fa1SBrad Love 951b53f2fa1SBrad Love return 0; 952b53f2fa1SBrad Love } 953b53f2fa1SBrad Love 954b53f2fa1SBrad Love static int mxl692_set_frontend(struct dvb_frontend *fe) 955b53f2fa1SBrad Love { 956b53f2fa1SBrad Love struct dtv_frontend_properties *p = &fe->dtv_property_cache; 957b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 958b53f2fa1SBrad Love 959b53f2fa1SBrad Love int status = 0; 960b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type; 961b53f2fa1SBrad Love struct MXL_EAGLE_MPEGOUT_PARAMS_T mpeg_params = {}; 962b53f2fa1SBrad Love enum MXL_EAGLE_QAM_DEMOD_ANNEX_TYPE_E qam_annex = MXL_EAGLE_QAM_DEMOD_ANNEX_B; 963b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_PARAMS_T qam_params = {}; 964b53f2fa1SBrad Love struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T tuner_params = {}; 965b53f2fa1SBrad Love u8 op_param = 0; 966b53f2fa1SBrad Love 967b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 968b53f2fa1SBrad Love 969b53f2fa1SBrad Love switch (p->modulation) { 970b53f2fa1SBrad Love case VSB_8: 971b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_ATSC; 972b53f2fa1SBrad Love break; 973b53f2fa1SBrad Love case QAM_AUTO: 974b53f2fa1SBrad Love case QAM_64: 975b53f2fa1SBrad Love case QAM_128: 976b53f2fa1SBrad Love case QAM_256: 977b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_QAM; 978b53f2fa1SBrad Love break; 979b53f2fa1SBrad Love default: 980b53f2fa1SBrad Love return -EINVAL; 981b53f2fa1SBrad Love } 982b53f2fa1SBrad Love 983b53f2fa1SBrad Love if (dev->current_frequency == p->frequency && dev->demod_type == demod_type) { 984b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "already set up\n"); 985b53f2fa1SBrad Love return 0; 986b53f2fa1SBrad Love } 987b53f2fa1SBrad Love 988b53f2fa1SBrad Love dev->current_frequency = -1; 989b53f2fa1SBrad Love dev->demod_type = -1; 990b53f2fa1SBrad Love 991b53f2fa1SBrad Love op_param = demod_type; 992b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 993b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_DEMODULATOR_TYPE_SET, 994b53f2fa1SBrad Love &op_param, 995b53f2fa1SBrad Love sizeof(u8), 996b53f2fa1SBrad Love NULL, 997b53f2fa1SBrad Love 0); 998b53f2fa1SBrad Love if (status) { 999b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 1000b53f2fa1SBrad Love "DEVICE_DEMODULATOR_TYPE_SET...FAIL err 0x%x\n", status); 1001b53f2fa1SBrad Love goto err; 1002b53f2fa1SBrad Love } 1003b53f2fa1SBrad Love 1004b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1005b53f2fa1SBrad Love 1006b53f2fa1SBrad Love mpeg_params.mpeg_parallel = 0; 1007b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_MSB_1ST; 1008b53f2fa1SBrad Love mpeg_params.mpeg_sync_pulse_width = MXL_EAGLE_DATA_SYNC_WIDTH_BIT; 1009b53f2fa1SBrad Love mpeg_params.mpeg_valid_pol = MXL_EAGLE_CLOCK_POSITIVE; 1010b53f2fa1SBrad Love mpeg_params.mpeg_sync_pol = MXL_EAGLE_CLOCK_POSITIVE; 1011b53f2fa1SBrad Love mpeg_params.mpeg_clk_pol = MXL_EAGLE_CLOCK_NEGATIVE; 1012b53f2fa1SBrad Love mpeg_params.mpeg3wire_mode_enable = 0; 1013b53f2fa1SBrad Love mpeg_params.mpeg_clk_freq = MXL_EAGLE_MPEG_CLOCK_27MHZ; 1014b53f2fa1SBrad Love 1015b53f2fa1SBrad Love switch (demod_type) { 1016b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1017b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1018b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1019b53f2fa1SBrad Love (u8 *)&mpeg_params, 1020b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1021b53f2fa1SBrad Love NULL, 1022b53f2fa1SBrad Love 0); 1023b53f2fa1SBrad Love if (status) 1024b53f2fa1SBrad Love goto err; 1025b53f2fa1SBrad Love break; 1026b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1027b53f2fa1SBrad Love if (qam_annex == MXL_EAGLE_QAM_DEMOD_ANNEX_A) 1028b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_LSB_1ST; 1029b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1030b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1031b53f2fa1SBrad Love (u8 *)&mpeg_params, 1032b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1033b53f2fa1SBrad Love NULL, 1034b53f2fa1SBrad Love 0); 1035b53f2fa1SBrad Love if (status) 1036b53f2fa1SBrad Love goto err; 1037b53f2fa1SBrad Love 1038b53f2fa1SBrad Love qam_params.annex_type = qam_annex; 1039b53f2fa1SBrad Love qam_params.qam_type = MXL_EAGLE_QAM_DEMOD_AUTO; 1040b53f2fa1SBrad Love qam_params.iq_flip = MXL_EAGLE_DEMOD_IQ_AUTO; 1041b53f2fa1SBrad Love if (p->modulation == QAM_64) 1042b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5057000; 1043b53f2fa1SBrad Love else 1044b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5361000; 1045b53f2fa1SBrad Love 1046b53f2fa1SBrad Love qam_params.symbol_rate_256qam_hz = 5361000; 1047b53f2fa1SBrad Love 1048b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1049b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_PARAMS_SET, 1050b53f2fa1SBrad Love (u8 *)&qam_params, 1051b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_PARAMS_T), 1052b53f2fa1SBrad Love NULL, 0); 1053b53f2fa1SBrad Love if (status) 1054b53f2fa1SBrad Love goto err; 1055b53f2fa1SBrad Love 1056b53f2fa1SBrad Love break; 1057b53f2fa1SBrad Love default: 1058b53f2fa1SBrad Love break; 1059b53f2fa1SBrad Love } 1060b53f2fa1SBrad Love 1061b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1062b53f2fa1SBrad Love 1063b53f2fa1SBrad Love tuner_params.freq_hz = p->frequency; 1064b53f2fa1SBrad Love tuner_params.bandwidth = MXL_EAGLE_TUNER_BW_6MHZ; 1065b53f2fa1SBrad Love tuner_params.tune_mode = MXL_EAGLE_TUNER_CHANNEL_TUNE_MODE_VIEW; 1066b53f2fa1SBrad Love 1067b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, " Tuning Freq: %d %s\n", tuner_params.freq_hz, 1068b53f2fa1SBrad Love demod_type == MXL_EAGLE_DEMOD_TYPE_ATSC ? "ATSC" : "QAM"); 1069b53f2fa1SBrad Love 1070b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1071b53f2fa1SBrad Love MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET, 1072b53f2fa1SBrad Love (u8 *)&tuner_params, 1073b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T), 1074b53f2fa1SBrad Love NULL, 1075b53f2fa1SBrad Love 0); 1076b53f2fa1SBrad Love if (status) 1077b53f2fa1SBrad Love goto err; 1078b53f2fa1SBrad Love 1079b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1080b53f2fa1SBrad Love 1081b53f2fa1SBrad Love switch (demod_type) { 1082b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1083b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1084b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_INIT_SET, 1085b53f2fa1SBrad Love NULL, 0, NULL, 0); 1086b53f2fa1SBrad Love if (status) 1087b53f2fa1SBrad Love goto err; 1088b53f2fa1SBrad Love break; 1089b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1090b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1091b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_RESTART_SET, 1092b53f2fa1SBrad Love NULL, 0, NULL, 0); 1093b53f2fa1SBrad Love if (status) 1094b53f2fa1SBrad Love goto err; 1095b53f2fa1SBrad Love break; 1096b53f2fa1SBrad Love default: 1097b53f2fa1SBrad Love break; 1098b53f2fa1SBrad Love } 1099b53f2fa1SBrad Love 1100b53f2fa1SBrad Love dev->demod_type = demod_type; 1101b53f2fa1SBrad Love dev->current_frequency = p->frequency; 1102b53f2fa1SBrad Love 1103b53f2fa1SBrad Love return 0; 1104b53f2fa1SBrad Love err: 1105b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 1106b53f2fa1SBrad Love return status; 1107b53f2fa1SBrad Love } 1108b53f2fa1SBrad Love 1109b53f2fa1SBrad Love static int mxl692_get_frontend(struct dvb_frontend *fe, 1110b53f2fa1SBrad Love struct dtv_frontend_properties *p) 1111b53f2fa1SBrad Love { 1112b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1113b53f2fa1SBrad Love 1114b53f2fa1SBrad Love p->modulation = c->modulation; 1115b53f2fa1SBrad Love p->frequency = c->frequency; 1116b53f2fa1SBrad Love 1117b53f2fa1SBrad Love return 0; 1118b53f2fa1SBrad Love } 1119b53f2fa1SBrad Love 1120b53f2fa1SBrad Love static int mxl692_read_snr(struct dvb_frontend *fe, u16 *snr) 1121b53f2fa1SBrad Love { 1122b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1123b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1124b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1125b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1126b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1127b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1128b53f2fa1SBrad Love int mxl_status = 0; 1129b53f2fa1SBrad Love 1130b53f2fa1SBrad Love *snr = 0; 1131b53f2fa1SBrad Love 1132b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1133b53f2fa1SBrad Love 1134b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1135b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1136b53f2fa1SBrad Love 1137b53f2fa1SBrad Love switch (demod_type) { 1138b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1139b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1140b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1141b53f2fa1SBrad Love NULL, 1142b53f2fa1SBrad Love 0, 1143b53f2fa1SBrad Love rx_buf, 1144b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1145b53f2fa1SBrad Love if (!mxl_status) { 1146b53f2fa1SBrad Love *snr = (u16)(atsc_status->snr_db_tenths / 10); 1147b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1148b53f2fa1SBrad Love c->cnr.stat[0].svalue = *snr; 1149b53f2fa1SBrad Love } 1150b53f2fa1SBrad Love break; 1151b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1152b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1153b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1154b53f2fa1SBrad Love NULL, 1155b53f2fa1SBrad Love 0, 1156b53f2fa1SBrad Love rx_buf, 1157b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1158b53f2fa1SBrad Love if (!mxl_status) 1159b53f2fa1SBrad Love *snr = (u16)(qam_status->snr_db_tenths / 10); 1160b53f2fa1SBrad Love break; 1161b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1162b53f2fa1SBrad Love default: 1163b53f2fa1SBrad Love break; 1164b53f2fa1SBrad Love } 1165b53f2fa1SBrad Love 1166b53f2fa1SBrad Love if (mxl_status) 1167b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1168b53f2fa1SBrad Love return mxl_status; 1169b53f2fa1SBrad Love } 1170b53f2fa1SBrad Love 1171b53f2fa1SBrad Love static int mxl692_read_ber_ucb(struct dvb_frontend *fe) 1172b53f2fa1SBrad Love { 1173b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1174b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1175b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1176b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *atsc_errors; 1177b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1178b53f2fa1SBrad Love int mxl_status = 0; 1179b53f2fa1SBrad Love u32 utmp; 1180b53f2fa1SBrad Love 1181b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1182b53f2fa1SBrad Love 1183b53f2fa1SBrad Love atsc_errors = (struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *)&rx_buf; 1184b53f2fa1SBrad Love 1185b53f2fa1SBrad Love switch (demod_type) { 1186b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1187b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1188b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET, 1189b53f2fa1SBrad Love NULL, 1190b53f2fa1SBrad Love 0, 1191b53f2fa1SBrad Love rx_buf, 1192b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T)); 1193b53f2fa1SBrad Love if (!mxl_status) { 1194b53f2fa1SBrad Love if (atsc_errors->error_packets == 0) 1195b53f2fa1SBrad Love utmp = 0; 1196b53f2fa1SBrad Love else 1197b53f2fa1SBrad Love utmp = ((atsc_errors->error_bytes / atsc_errors->error_packets) * 1198b53f2fa1SBrad Love atsc_errors->total_packets); 1199b53f2fa1SBrad Love /* ber */ 1200b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 1201b53f2fa1SBrad Love c->post_bit_error.stat[0].uvalue += atsc_errors->error_bytes; 1202b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 1203b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue += utmp; 1204b53f2fa1SBrad Love /* ucb */ 1205b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_COUNTER; 1206b53f2fa1SBrad Love c->block_error.stat[0].uvalue += atsc_errors->error_packets; 1207b53f2fa1SBrad Love 1208b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%llu %llu\n", 1209b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue, c->block_error.stat[0].uvalue); 1210b53f2fa1SBrad Love } 1211b53f2fa1SBrad Love break; 1212b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1213b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1214b53f2fa1SBrad Love default: 1215b53f2fa1SBrad Love break; 1216b53f2fa1SBrad Love } 1217b53f2fa1SBrad Love 1218b53f2fa1SBrad Love if (mxl_status) 1219b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1220b53f2fa1SBrad Love 1221b53f2fa1SBrad Love return mxl_status; 1222b53f2fa1SBrad Love } 1223b53f2fa1SBrad Love 1224b53f2fa1SBrad Love static int mxl692_read_status(struct dvb_frontend *fe, 1225b53f2fa1SBrad Love enum fe_status *status) 1226b53f2fa1SBrad Love { 1227b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1228b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1229b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1230b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1231b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1232b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1233b53f2fa1SBrad Love int mxl_status = 0; 1234b53f2fa1SBrad Love *status = 0; 1235b53f2fa1SBrad Love 1236b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1237b53f2fa1SBrad Love 1238b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1239b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1240b53f2fa1SBrad Love 1241b53f2fa1SBrad Love switch (demod_type) { 1242b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1243b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1244b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1245b53f2fa1SBrad Love NULL, 1246b53f2fa1SBrad Love 0, 1247b53f2fa1SBrad Love rx_buf, 1248b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1249b53f2fa1SBrad Love if (!mxl_status && atsc_status->atsc_lock) { 1250b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1251b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1252b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1253b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1254b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1255b53f2fa1SBrad Love 1256b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1257b53f2fa1SBrad Love c->cnr.stat[0].svalue = atsc_status->snr_db_tenths / 10; 1258b53f2fa1SBrad Love } 1259b53f2fa1SBrad Love break; 1260b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1261b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1262b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1263b53f2fa1SBrad Love NULL, 1264b53f2fa1SBrad Love 0, 1265b53f2fa1SBrad Love rx_buf, 1266b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1267b53f2fa1SBrad Love if (!mxl_status && qam_status->qam_locked) { 1268b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1269b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1270b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1271b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1272b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1273b53f2fa1SBrad Love 1274b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1275b53f2fa1SBrad Love c->cnr.stat[0].svalue = qam_status->snr_db_tenths / 10; 1276b53f2fa1SBrad Love } 1277b53f2fa1SBrad Love break; 1278b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1279b53f2fa1SBrad Love default: 1280b53f2fa1SBrad Love break; 1281b53f2fa1SBrad Love } 1282b53f2fa1SBrad Love 1283b53f2fa1SBrad Love if ((*status & FE_HAS_LOCK) == 0) { 1284b53f2fa1SBrad Love /* No lock, reset all statistics */ 1285b53f2fa1SBrad Love c->cnr.len = 1; 1286b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1287b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1288b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1289b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1290b53f2fa1SBrad Love return 0; 1291b53f2fa1SBrad Love } 1292b53f2fa1SBrad Love 1293b53f2fa1SBrad Love if (mxl_status) 1294b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1295b53f2fa1SBrad Love else 1296b53f2fa1SBrad Love mxl_status = mxl692_read_ber_ucb(fe); 1297b53f2fa1SBrad Love 1298b53f2fa1SBrad Love return mxl_status; 1299b53f2fa1SBrad Love } 1300b53f2fa1SBrad Love 1301b53f2fa1SBrad Love static const struct dvb_frontend_ops mxl692_ops = { 1302b53f2fa1SBrad Love .delsys = { SYS_ATSC }, 1303b53f2fa1SBrad Love .info = { 1304b53f2fa1SBrad Love .name = "MaxLinear MxL692 VSB tuner-demodulator", 1305b53f2fa1SBrad Love .frequency_min_hz = 54000000, 1306b53f2fa1SBrad Love .frequency_max_hz = 858000000, 1307b53f2fa1SBrad Love .frequency_stepsize_hz = 62500, 1308b53f2fa1SBrad Love .caps = FE_CAN_8VSB 1309b53f2fa1SBrad Love }, 1310b53f2fa1SBrad Love 1311b53f2fa1SBrad Love .init = mxl692_init, 1312b53f2fa1SBrad Love .sleep = mxl692_sleep, 1313b53f2fa1SBrad Love .set_frontend = mxl692_set_frontend, 1314b53f2fa1SBrad Love .get_frontend = mxl692_get_frontend, 1315b53f2fa1SBrad Love 1316b53f2fa1SBrad Love .read_status = mxl692_read_status, 1317b53f2fa1SBrad Love .read_snr = mxl692_read_snr, 1318b53f2fa1SBrad Love }; 1319b53f2fa1SBrad Love 1320b53f2fa1SBrad Love static int mxl692_probe(struct i2c_client *client, 1321b53f2fa1SBrad Love const struct i2c_device_id *id) 1322b53f2fa1SBrad Love { 1323b53f2fa1SBrad Love struct mxl692_config *config = client->dev.platform_data; 1324b53f2fa1SBrad Love struct mxl692_dev *dev; 1325b53f2fa1SBrad Love int ret = 0; 1326b53f2fa1SBrad Love 1327b53f2fa1SBrad Love dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1328b53f2fa1SBrad Love if (!dev) { 1329b53f2fa1SBrad Love ret = -ENOMEM; 1330b53f2fa1SBrad Love dev_dbg(&client->dev, "kzalloc() failed\n"); 1331b53f2fa1SBrad Love goto err; 1332b53f2fa1SBrad Love } 1333b53f2fa1SBrad Love 1334b53f2fa1SBrad Love memcpy(&dev->fe.ops, &mxl692_ops, sizeof(struct dvb_frontend_ops)); 1335b53f2fa1SBrad Love dev->fe.demodulator_priv = dev; 1336b53f2fa1SBrad Love dev->i2c_client = client; 1337b53f2fa1SBrad Love *config->fe = &dev->fe; 1338b53f2fa1SBrad Love mutex_init(&dev->i2c_lock); 1339b53f2fa1SBrad Love i2c_set_clientdata(client, dev); 1340b53f2fa1SBrad Love 1341b53f2fa1SBrad Love dev_info(&client->dev, "MaxLinear mxl692 successfully attached\n"); 1342b53f2fa1SBrad Love 1343b53f2fa1SBrad Love return 0; 1344b53f2fa1SBrad Love err: 1345b53f2fa1SBrad Love dev_dbg(&client->dev, "failed %d\n", ret); 1346b53f2fa1SBrad Love return -ENODEV; 1347b53f2fa1SBrad Love } 1348b53f2fa1SBrad Love 1349b53f2fa1SBrad Love static int mxl692_remove(struct i2c_client *client) 1350b53f2fa1SBrad Love { 1351b53f2fa1SBrad Love struct mxl692_dev *dev = i2c_get_clientdata(client); 1352b53f2fa1SBrad Love 1353b53f2fa1SBrad Love dev->fe.demodulator_priv = NULL; 1354b53f2fa1SBrad Love i2c_set_clientdata(client, NULL); 1355b53f2fa1SBrad Love kfree(dev); 1356b53f2fa1SBrad Love 1357b53f2fa1SBrad Love return 0; 1358b53f2fa1SBrad Love } 1359b53f2fa1SBrad Love 1360b53f2fa1SBrad Love static const struct i2c_device_id mxl692_id_table[] = { 1361b53f2fa1SBrad Love {"mxl692", 0}, 1362b53f2fa1SBrad Love {} 1363b53f2fa1SBrad Love }; 1364b53f2fa1SBrad Love MODULE_DEVICE_TABLE(i2c, mxl692_id_table); 1365b53f2fa1SBrad Love 1366b53f2fa1SBrad Love static struct i2c_driver mxl692_driver = { 1367b53f2fa1SBrad Love .driver = { 1368b53f2fa1SBrad Love .name = "mxl692", 1369b53f2fa1SBrad Love }, 1370b53f2fa1SBrad Love .probe = mxl692_probe, 1371b53f2fa1SBrad Love .remove = mxl692_remove, 1372b53f2fa1SBrad Love .id_table = mxl692_id_table, 1373b53f2fa1SBrad Love }; 1374b53f2fa1SBrad Love 1375b53f2fa1SBrad Love module_i2c_driver(mxl692_driver); 1376b53f2fa1SBrad Love 1377b53f2fa1SBrad Love MODULE_AUTHOR("Brad Love <brad@nextdimension.cc>"); 1378b53f2fa1SBrad Love MODULE_DESCRIPTION("MaxLinear MxL692 demodulator/tuner driver"); 1379b53f2fa1SBrad Love MODULE_FIRMWARE(MXL692_FIRMWARE); 1380b53f2fa1SBrad Love MODULE_LICENSE("GPL"); 1381