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; 227b53f2fa1SBrad Love const u8 fw_hdr[] = { 0x4D, 0x31, 0x10, 0x02, 0x40, 0x00, 0x00, 0x80 }; 228b53f2fa1SBrad Love 229b53f2fa1SBrad Love if (memcmp(buffer, fw_hdr, 8) != 0) { 230b53f2fa1SBrad Love status = -EINVAL; 231b53f2fa1SBrad Love goto err_finish; 232b53f2fa1SBrad Love } 233b53f2fa1SBrad Love 234b53f2fa1SBrad Love local_buf = (__be32 *)(buffer + 8); 235b53f2fa1SBrad Love temp = be32_to_cpu(*local_buf); 236b53f2fa1SBrad Love 237b53f2fa1SBrad Love if ((buf_len - 16) != temp >> 8) { 238b53f2fa1SBrad Love status = -EINVAL; 239b53f2fa1SBrad Love goto err_finish; 240b53f2fa1SBrad Love } 241b53f2fa1SBrad Love 242b53f2fa1SBrad Love for (ix = 16; ix < buf_len; ix++) 243b53f2fa1SBrad Love temp_cksum += buffer[ix]; 244b53f2fa1SBrad Love 245b53f2fa1SBrad Love if (temp_cksum != buffer[11]) 246b53f2fa1SBrad Love status = -EINVAL; 247b53f2fa1SBrad Love 248b53f2fa1SBrad Love err_finish: 249b53f2fa1SBrad Love if (status) 250b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "failed\n"); 251b53f2fa1SBrad Love return status; 252b53f2fa1SBrad Love } 253b53f2fa1SBrad Love 254b53f2fa1SBrad Love static int mxl692_write_fw_block(struct mxl692_dev *dev, const u8 *buffer, 255b53f2fa1SBrad Love u32 buf_len, u32 *index) 256b53f2fa1SBrad Love { 257b53f2fa1SBrad Love int status = 0; 258b53f2fa1SBrad Love u32 ix = 0, total_len = 0, addr = 0, chunk_len = 0, prevchunk_len = 0; 259b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 260b53f2fa1SBrad Love int payload_max = MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE; 261b53f2fa1SBrad Love 262b53f2fa1SBrad Love ix = *index; 263b53f2fa1SBrad Love 264b53f2fa1SBrad Love if (buffer[ix] == 0x53) { 265b53f2fa1SBrad Love total_len = buffer[ix + 1] << 16 | buffer[ix + 2] << 8 | buffer[ix + 3]; 266b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; 267b53f2fa1SBrad Love addr = buffer[ix + 4] << 24 | buffer[ix + 5] << 16 | 268b53f2fa1SBrad Love buffer[ix + 6] << 8 | buffer[ix + 7]; 269b53f2fa1SBrad Love ix += MXL_EAGLE_FW_SEGMENT_HEADER_SIZE; 270b53f2fa1SBrad Love 271b53f2fa1SBrad Love while ((total_len > 0) && (status == 0)) { 272b53f2fa1SBrad Love plocal_buf = local_buf; 273b53f2fa1SBrad Love chunk_len = (total_len < payload_max) ? total_len : payload_max; 274b53f2fa1SBrad Love 275b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 276b53f2fa1SBrad Love *plocal_buf++ = chunk_len + sizeof(u32); 277b53f2fa1SBrad Love 278b53f2fa1SBrad Love *(u32 *)plocal_buf = addr + prevchunk_len; 279b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 280b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 281b53f2fa1SBrad Love #endif 282b53f2fa1SBrad Love plocal_buf += sizeof(u32); 283b53f2fa1SBrad Love 284b53f2fa1SBrad Love memcpy(plocal_buf, &buffer[ix], chunk_len); 285b53f2fa1SBrad Love convert_endian(chunk_len, plocal_buf); 286b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 287b53f2fa1SBrad Love (chunk_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 288b53f2fa1SBrad Love status = -EREMOTEIO; 289b53f2fa1SBrad Love break; 290b53f2fa1SBrad Love } 291b53f2fa1SBrad Love 292b53f2fa1SBrad Love prevchunk_len += chunk_len; 293b53f2fa1SBrad Love total_len -= chunk_len; 294b53f2fa1SBrad Love ix += chunk_len; 295b53f2fa1SBrad Love } 296b53f2fa1SBrad Love *index = ix; 297b53f2fa1SBrad Love } else { 298b53f2fa1SBrad Love status = -EINVAL; 299b53f2fa1SBrad Love } 300b53f2fa1SBrad Love 301b53f2fa1SBrad Love if (status) 302b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 303b53f2fa1SBrad Love 304b53f2fa1SBrad Love return status; 305b53f2fa1SBrad Love } 306b53f2fa1SBrad Love 307b53f2fa1SBrad Love static int mxl692_memwrite(struct mxl692_dev *dev, u32 addr, 308b53f2fa1SBrad Love u8 *buffer, u32 size) 309b53f2fa1SBrad Love { 310b53f2fa1SBrad Love int status = 0, total_len = 0; 311b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 312b53f2fa1SBrad Love 313b53f2fa1SBrad Love total_len = size; 314b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 315b53f2fa1SBrad Love 316b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE)) 317b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 318b53f2fa1SBrad Love 319b53f2fa1SBrad Love plocal_buf = local_buf; 320b53f2fa1SBrad Love 321b53f2fa1SBrad Love *plocal_buf++ = 0xFC; 322b53f2fa1SBrad Love *plocal_buf++ = total_len + sizeof(u32); 323b53f2fa1SBrad Love 324b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 325b53f2fa1SBrad Love plocal_buf += sizeof(u32); 326b53f2fa1SBrad Love 327b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 328b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 329b53f2fa1SBrad Love convert_endian(sizeof(u32) + total_len, local_buf + 2); 330b53f2fa1SBrad Love #endif 331b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 332b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { 333b53f2fa1SBrad Love status = -EREMOTEIO; 334b53f2fa1SBrad Love goto err_finish; 335b53f2fa1SBrad Love } 336b53f2fa1SBrad Love 337b53f2fa1SBrad Love return status; 338b53f2fa1SBrad Love err_finish: 339b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 340b53f2fa1SBrad Love return status; 341b53f2fa1SBrad Love } 342b53f2fa1SBrad Love 343b53f2fa1SBrad Love static int mxl692_memread(struct mxl692_dev *dev, u32 addr, 344b53f2fa1SBrad Love u8 *buffer, u32 size) 345b53f2fa1SBrad Love { 346b53f2fa1SBrad Love int status = 0; 347b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_MHEADER_SIZE] = {}, *plocal_buf = NULL; 348b53f2fa1SBrad Love 349b53f2fa1SBrad Love plocal_buf = local_buf; 350b53f2fa1SBrad Love 351b53f2fa1SBrad Love *plocal_buf++ = 0xFB; 352b53f2fa1SBrad Love *plocal_buf++ = sizeof(u32); 353b53f2fa1SBrad Love *(u32 *)plocal_buf = addr; 354b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 355b53f2fa1SBrad Love convert_endian(sizeof(u32), plocal_buf); 356b53f2fa1SBrad Love #endif 357b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 358b53f2fa1SBrad Love 359b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_MHEADER_SIZE) > 0) { 360b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 361b53f2fa1SBrad Love status = mxl692_i2c_read(dev, buffer, (u16)size) < 0 ? -EREMOTEIO : 0; 362b53f2fa1SBrad Love #ifdef __BIG_ENDIAN 363b53f2fa1SBrad Love if (status == 0) 364b53f2fa1SBrad Love convert_endian(size, buffer); 365b53f2fa1SBrad Love #endif 366b53f2fa1SBrad Love } else { 367b53f2fa1SBrad Love status = -EREMOTEIO; 368b53f2fa1SBrad Love } 369b53f2fa1SBrad Love 370b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 371b53f2fa1SBrad Love 372b53f2fa1SBrad Love if (status) 373b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 374b53f2fa1SBrad Love 375b53f2fa1SBrad Love return status; 376b53f2fa1SBrad Love } 377b53f2fa1SBrad Love 378b53f2fa1SBrad Love static const char *mxl692_opcode_string(u8 opcode) 379b53f2fa1SBrad Love { 380*41033690SJiapeng Chong if (opcode <= MXL_EAGLE_OPCODE_INTERNAL) 381b53f2fa1SBrad Love return MXL_EAGLE_OPCODE_STRING[opcode]; 382b53f2fa1SBrad Love 383b53f2fa1SBrad Love return "invalid opcode"; 384b53f2fa1SBrad Love } 385b53f2fa1SBrad Love 386b53f2fa1SBrad Love static int mxl692_opwrite(struct mxl692_dev *dev, u8 *buffer, 387b53f2fa1SBrad Love u32 size) 388b53f2fa1SBrad Love { 389b53f2fa1SBrad Love int status = 0, total_len = 0; 390b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; 391b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_hdr = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)buffer; 392b53f2fa1SBrad Love 393b53f2fa1SBrad Love total_len = size; 394b53f2fa1SBrad Love total_len = (total_len + 3) & ~3; /* 4 byte alignment */ 395b53f2fa1SBrad Love 396b53f2fa1SBrad Love if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) 397b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); 398b53f2fa1SBrad Love 399b53f2fa1SBrad Love plocal_buf = local_buf; 400b53f2fa1SBrad Love 401b53f2fa1SBrad Love *plocal_buf++ = 0xFE; 402b53f2fa1SBrad Love *plocal_buf++ = (u8)total_len; 403b53f2fa1SBrad Love 404b53f2fa1SBrad Love memcpy(plocal_buf, buffer, total_len); 405b53f2fa1SBrad Love convert_endian(total_len, plocal_buf); 406b53f2fa1SBrad Love 407b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, 408b53f2fa1SBrad Love (total_len + MXL_EAGLE_I2C_PHEADER_SIZE)) < 0) { 409b53f2fa1SBrad Love status = -EREMOTEIO; 410b53f2fa1SBrad Love goto err_finish; 411b53f2fa1SBrad Love } 412b53f2fa1SBrad Love err_finish: 413b53f2fa1SBrad Love if (status) 414b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "opcode %s err %d\n", 415b53f2fa1SBrad Love mxl692_opcode_string(tx_hdr->opcode), status); 416b53f2fa1SBrad Love return status; 417b53f2fa1SBrad Love } 418b53f2fa1SBrad Love 419b53f2fa1SBrad Love static int mxl692_opread(struct mxl692_dev *dev, u8 *buffer, 420b53f2fa1SBrad Love u32 size) 421b53f2fa1SBrad Love { 422b53f2fa1SBrad Love int status = 0; 423b53f2fa1SBrad Love u32 ix = 0; 424b53f2fa1SBrad Love u8 local_buf[MXL_EAGLE_I2C_PHEADER_SIZE] = {}; 425b53f2fa1SBrad Love 426b53f2fa1SBrad Love local_buf[0] = 0xFD; 427b53f2fa1SBrad Love local_buf[1] = 0; 428b53f2fa1SBrad Love 429b53f2fa1SBrad Love if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_PHEADER_SIZE) > 0) { 430b53f2fa1SBrad Love size = (size + 3) & ~3; /* 4 byte alignment */ 431b53f2fa1SBrad Love 432b53f2fa1SBrad Love /* Read in 4 byte chunks */ 433b53f2fa1SBrad Love for (ix = 0; ix < size; ix += 4) { 434b53f2fa1SBrad Love if (mxl692_i2c_read(dev, buffer + ix, 4) < 0) { 435b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "ix=%d size=%d\n", ix, size); 436b53f2fa1SBrad Love status = -EREMOTEIO; 437b53f2fa1SBrad Love goto err_finish; 438b53f2fa1SBrad Love } 439b53f2fa1SBrad Love } 440b53f2fa1SBrad Love convert_endian(size, buffer); 441b53f2fa1SBrad Love } else { 442b53f2fa1SBrad Love status = -EREMOTEIO; 443b53f2fa1SBrad Love } 444b53f2fa1SBrad Love err_finish: 445b53f2fa1SBrad Love if (status) 446b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 447b53f2fa1SBrad Love return status; 448b53f2fa1SBrad Love } 449b53f2fa1SBrad Love 450b53f2fa1SBrad Love static int mxl692_i2c_writeread(struct mxl692_dev *dev, 451b53f2fa1SBrad Love u8 opcode, 452b53f2fa1SBrad Love u8 *tx_payload, 453b53f2fa1SBrad Love u8 tx_payload_size, 454b53f2fa1SBrad Love u8 *rx_payload, 455b53f2fa1SBrad Love u8 rx_payload_expected) 456b53f2fa1SBrad Love { 457b53f2fa1SBrad Love int status = 0, timeout = 40; 458b53f2fa1SBrad Love u8 tx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 459b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 460b53f2fa1SBrad Love u32 resp_checksum = 0, resp_checksum_tmp = 0; 461b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_header; 462b53f2fa1SBrad Love struct MXL_EAGLE_HOST_MSG_HEADER_T *rx_header; 463b53f2fa1SBrad Love 464b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 465b53f2fa1SBrad Love 466b53f2fa1SBrad Love if ((tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE) > 467b53f2fa1SBrad Love (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) { 468b53f2fa1SBrad Love status = -EINVAL; 469b53f2fa1SBrad Love goto err_finish; 470b53f2fa1SBrad Love } 471b53f2fa1SBrad Love 472b53f2fa1SBrad Love tx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)tx_buf; 473b53f2fa1SBrad Love tx_header->opcode = opcode; 474b53f2fa1SBrad Love tx_header->seqnum = dev->seqnum++; 475b53f2fa1SBrad Love tx_header->payload_size = tx_payload_size; 476b53f2fa1SBrad Love tx_header->checksum = 0; 477b53f2fa1SBrad Love 478b53f2fa1SBrad Love if (dev->seqnum == 0) 479b53f2fa1SBrad Love dev->seqnum = 1; 480b53f2fa1SBrad Love 481b53f2fa1SBrad Love if (tx_payload && tx_payload_size > 0) 482b53f2fa1SBrad Love memcpy(&tx_buf[MXL_EAGLE_HOST_MSG_HEADER_SIZE], tx_payload, tx_payload_size); 483b53f2fa1SBrad Love 484b53f2fa1SBrad Love mxl692_tx_swap(opcode, tx_buf); 485b53f2fa1SBrad Love 486b53f2fa1SBrad Love tx_header->checksum = 0; 487b53f2fa1SBrad Love tx_header->checksum = mxl692_checksum(tx_buf, 488b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + tx_payload_size); 489b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 490b53f2fa1SBrad Love convert_endian(4, (u8 *)&tx_header->checksum); /* cksum is big endian */ 491b53f2fa1SBrad Love #endif 492b53f2fa1SBrad Love /* send Tx message */ 493b53f2fa1SBrad Love status = mxl692_opwrite(dev, tx_buf, 494b53f2fa1SBrad Love tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 495b53f2fa1SBrad Love if (status) { 496b53f2fa1SBrad Love status = -EREMOTEIO; 497b53f2fa1SBrad Love goto err_finish; 498b53f2fa1SBrad Love } 499b53f2fa1SBrad Love 500b53f2fa1SBrad Love /* receive Rx message (polling) */ 501b53f2fa1SBrad Love rx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)rx_buf; 502b53f2fa1SBrad Love 503b53f2fa1SBrad Love do { 504b53f2fa1SBrad Love status = mxl692_opread(dev, rx_buf, 505b53f2fa1SBrad Love rx_payload_expected + MXL_EAGLE_HOST_MSG_HEADER_SIZE); 506b53f2fa1SBrad Love usleep_range(1000, 2000); 507b53f2fa1SBrad Love timeout--; 508b53f2fa1SBrad Love } while ((timeout > 0) && (status == 0) && 509b53f2fa1SBrad Love (rx_header->seqnum == 0) && 510b53f2fa1SBrad Love (rx_header->checksum == 0)); 511b53f2fa1SBrad Love 512b53f2fa1SBrad Love if (timeout == 0 || status) { 513b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "timeout=%d status=%d\n", 514b53f2fa1SBrad Love timeout, status); 515b53f2fa1SBrad Love status = -ETIMEDOUT; 516b53f2fa1SBrad Love goto err_finish; 517b53f2fa1SBrad Love } 518b53f2fa1SBrad Love 519b53f2fa1SBrad Love if (rx_header->status) { 520b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx header status code: %d\n", rx_header->status); 521b53f2fa1SBrad Love status = -EREMOTEIO; 522b53f2fa1SBrad Love goto err_finish; 523b53f2fa1SBrad Love } 524b53f2fa1SBrad Love 525b53f2fa1SBrad Love if (rx_header->seqnum != tx_header->seqnum || 526b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode || 527b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected) { 528b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "Something failed seq=%s opcode=%s pSize=%s\n", 529b53f2fa1SBrad Love rx_header->seqnum != tx_header->seqnum ? "X" : "0", 530b53f2fa1SBrad Love rx_header->opcode != tx_header->opcode ? "X" : "0", 531b53f2fa1SBrad Love rx_header->payload_size != rx_payload_expected ? "X" : "0"); 532b53f2fa1SBrad Love if (rx_header->payload_size != rx_payload_expected) 533b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 534b53f2fa1SBrad Love "rx_header->payloadSize=%d rx_payload_expected=%d\n", 535b53f2fa1SBrad Love rx_header->payload_size, rx_payload_expected); 536b53f2fa1SBrad Love status = -EREMOTEIO; 537b53f2fa1SBrad Love goto err_finish; 538b53f2fa1SBrad Love } 539b53f2fa1SBrad Love 540b53f2fa1SBrad Love resp_checksum = rx_header->checksum; 541b53f2fa1SBrad Love rx_header->checksum = 0; 542b53f2fa1SBrad Love 543b53f2fa1SBrad Love resp_checksum_tmp = mxl692_checksum(rx_buf, 544b53f2fa1SBrad Love MXL_EAGLE_HOST_MSG_HEADER_SIZE + rx_header->payload_size); 545b53f2fa1SBrad Love #ifdef __LITTLE_ENDIAN 546b53f2fa1SBrad Love convert_endian(4, (u8 *)&resp_checksum_tmp); /* cksum is big endian */ 547b53f2fa1SBrad Love #endif 548b53f2fa1SBrad Love if (resp_checksum != resp_checksum_tmp) { 549b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "rx checksum failure\n"); 550b53f2fa1SBrad Love status = -EREMOTEIO; 551b53f2fa1SBrad Love goto err_finish; 552b53f2fa1SBrad Love } 553b53f2fa1SBrad Love 554b53f2fa1SBrad Love mxl692_rx_swap(rx_header->opcode, rx_buf); 555b53f2fa1SBrad Love 556b53f2fa1SBrad Love if (rx_header->payload_size > 0) { 557b53f2fa1SBrad Love if (!rx_payload) { 558b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "no rx payload?!?\n"); 559b53f2fa1SBrad Love status = -EREMOTEIO; 560b53f2fa1SBrad Love goto err_finish; 561b53f2fa1SBrad Love } 562b53f2fa1SBrad Love memcpy(rx_payload, rx_buf + MXL_EAGLE_HOST_MSG_HEADER_SIZE, 563b53f2fa1SBrad Love rx_header->payload_size); 564b53f2fa1SBrad Love } 565b53f2fa1SBrad Love err_finish: 566b53f2fa1SBrad Love if (status) 567b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 568b53f2fa1SBrad Love 569b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 570b53f2fa1SBrad Love return status; 571b53f2fa1SBrad Love } 572b53f2fa1SBrad Love 573b53f2fa1SBrad Love static int mxl692_fwdownload(struct mxl692_dev *dev, 574b53f2fa1SBrad Love const u8 *firmware_buf, u32 buf_len) 575b53f2fa1SBrad Love { 576b53f2fa1SBrad Love int status = 0; 577b53f2fa1SBrad Love u32 ix, reg_val = 0x1; 578b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 579b53f2fa1SBrad Love struct MXL_EAGLE_DEV_STATUS_T *dev_status; 580b53f2fa1SBrad Love 581b53f2fa1SBrad Love if (buf_len < MXL_EAGLE_FW_HEADER_SIZE || 582b53f2fa1SBrad Love buf_len > MXL_EAGLE_FW_MAX_SIZE_IN_KB * 1000) 583b53f2fa1SBrad Love return -EINVAL; 584b53f2fa1SBrad Love 585b53f2fa1SBrad Love mutex_lock(&dev->i2c_lock); 586b53f2fa1SBrad Love 587b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 588b53f2fa1SBrad Love 589b53f2fa1SBrad Love status = mxl692_validate_fw_header(dev, firmware_buf, buf_len); 590b53f2fa1SBrad Love if (status) 591b53f2fa1SBrad Love goto err_finish; 592b53f2fa1SBrad Love 593b53f2fa1SBrad Love ix = 16; 594b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* DRAM */ 595b53f2fa1SBrad Love if (status) 596b53f2fa1SBrad Love goto err_finish; 597b53f2fa1SBrad Love 598b53f2fa1SBrad Love status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* IRAM */ 599b53f2fa1SBrad Love if (status) 600b53f2fa1SBrad Love goto err_finish; 601b53f2fa1SBrad Love 602b53f2fa1SBrad Love /* release CPU from reset */ 603b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 604b53f2fa1SBrad Love if (status) 605b53f2fa1SBrad Love goto err_finish; 606b53f2fa1SBrad Love 607b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 608b53f2fa1SBrad Love 609b53f2fa1SBrad Love if (status == 0) { 610b53f2fa1SBrad Love /* verify FW is alive */ 611b53f2fa1SBrad Love usleep_range(MXL_EAGLE_FW_LOAD_TIME * 1000, (MXL_EAGLE_FW_LOAD_TIME + 5) * 1000); 612b53f2fa1SBrad Love dev_status = (struct MXL_EAGLE_DEV_STATUS_T *)&rx_buf; 613b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 614b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_STATUS_GET, 615b53f2fa1SBrad Love NULL, 616b53f2fa1SBrad Love 0, 617b53f2fa1SBrad Love (u8 *)dev_status, 618b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_STATUS_T)); 619b53f2fa1SBrad Love } 620b53f2fa1SBrad Love 621b53f2fa1SBrad Love return status; 622b53f2fa1SBrad Love err_finish: 623b53f2fa1SBrad Love mutex_unlock(&dev->i2c_lock); 624b53f2fa1SBrad Love if (status) 625b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 626b53f2fa1SBrad Love return status; 627b53f2fa1SBrad Love } 628b53f2fa1SBrad Love 629b53f2fa1SBrad Love static int mxl692_get_versions(struct mxl692_dev *dev) 630b53f2fa1SBrad Love { 631b53f2fa1SBrad Love int status = 0; 632b53f2fa1SBrad Love struct MXL_EAGLE_DEV_VER_T dev_ver = {}; 633b53f2fa1SBrad Love static const char * const chip_id[] = {"N/A", "691", "248", "692"}; 634b53f2fa1SBrad Love 635b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, MXL_EAGLE_OPCODE_DEVICE_VERSION_GET, 636b53f2fa1SBrad Love NULL, 637b53f2fa1SBrad Love 0, 638b53f2fa1SBrad Love (u8 *)&dev_ver, 639b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_DEV_VER_T)); 640b53f2fa1SBrad Love if (status) 641b53f2fa1SBrad Love return status; 642b53f2fa1SBrad Love 643b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, "MxL692_DEMOD Chip ID: %s\n", 644b53f2fa1SBrad Love chip_id[dev_ver.chip_id]); 645b53f2fa1SBrad Love 646b53f2fa1SBrad Love dev_info(&dev->i2c_client->dev, 647b53f2fa1SBrad Love "MxL692_DEMOD FW Version: %d.%d.%d.%d_RC%d\n", 648b53f2fa1SBrad Love dev_ver.firmware_ver[0], 649b53f2fa1SBrad Love dev_ver.firmware_ver[1], 650b53f2fa1SBrad Love dev_ver.firmware_ver[2], 651b53f2fa1SBrad Love dev_ver.firmware_ver[3], 652b53f2fa1SBrad Love dev_ver.firmware_ver[4]); 653b53f2fa1SBrad Love 654b53f2fa1SBrad Love return status; 655b53f2fa1SBrad Love } 656b53f2fa1SBrad Love 657b53f2fa1SBrad Love static int mxl692_reset(struct mxl692_dev *dev) 658b53f2fa1SBrad Love { 659b53f2fa1SBrad Love int status = 0; 660b53f2fa1SBrad Love u32 dev_type = MXL_EAGLE_DEVICE_MAX, reg_val = 0x2; 661b53f2fa1SBrad Love 662b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 663b53f2fa1SBrad Love 664b53f2fa1SBrad Love /* legacy i2c override */ 665b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x80000100, (u8 *)®_val, sizeof(u32)); 666b53f2fa1SBrad Love if (status) 667b53f2fa1SBrad Love goto err_finish; 668b53f2fa1SBrad Love 669b53f2fa1SBrad Love /* verify sku */ 670b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000188, (u8 *)&dev_type, sizeof(u32)); 671b53f2fa1SBrad Love if (status) 672b53f2fa1SBrad Love goto err_finish; 673b53f2fa1SBrad Love 674b53f2fa1SBrad Love if (dev_type != dev->device_type) 675b53f2fa1SBrad Love goto err_finish; 676b53f2fa1SBrad Love 677b53f2fa1SBrad Love err_finish: 678b53f2fa1SBrad Love if (status) 679b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 680b53f2fa1SBrad Love return status; 681b53f2fa1SBrad Love } 682b53f2fa1SBrad Love 683b53f2fa1SBrad Love static int mxl692_config_regulators(struct mxl692_dev *dev, 684b53f2fa1SBrad Love enum MXL_EAGLE_POWER_SUPPLY_SOURCE_E power_supply) 685b53f2fa1SBrad Love { 686b53f2fa1SBrad Love int status = 0; 687b53f2fa1SBrad Love u32 reg_val; 688b53f2fa1SBrad Love 689b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 690b53f2fa1SBrad Love 691b53f2fa1SBrad Love /* configure main regulator according to the power supply source */ 692b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 693b53f2fa1SBrad Love if (status) 694b53f2fa1SBrad Love goto err_finish; 695b53f2fa1SBrad Love 696b53f2fa1SBrad Love reg_val &= 0x00FFFFFF; 697b53f2fa1SBrad Love reg_val |= (power_supply == MXL_EAGLE_POWER_SUPPLY_SOURCE_SINGLE) ? 698b53f2fa1SBrad Love 0x14000000 : 0x10000000; 699b53f2fa1SBrad Love 700b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 701b53f2fa1SBrad Love if (status) 702b53f2fa1SBrad Love goto err_finish; 703b53f2fa1SBrad Love 704b53f2fa1SBrad Love /* configure digital regulator to high current mode */ 705b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 706b53f2fa1SBrad Love if (status) 707b53f2fa1SBrad Love goto err_finish; 708b53f2fa1SBrad Love 709b53f2fa1SBrad Love reg_val |= 0x800; 710b53f2fa1SBrad Love 711b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); 712b53f2fa1SBrad Love 713b53f2fa1SBrad Love err_finish: 714b53f2fa1SBrad Love if (status) 715b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 716b53f2fa1SBrad Love return status; 717b53f2fa1SBrad Love } 718b53f2fa1SBrad Love 719b53f2fa1SBrad Love static int mxl692_config_xtal(struct mxl692_dev *dev, 720b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T *dev_xtal) 721b53f2fa1SBrad Love { 722b53f2fa1SBrad Love int status = 0; 723b53f2fa1SBrad Love u32 reg_val, reg_val1; 724b53f2fa1SBrad Love 725b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 726b53f2fa1SBrad Love 727b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 728b53f2fa1SBrad Love if (status) 729b53f2fa1SBrad Love goto err_finish; 730b53f2fa1SBrad Love 731b53f2fa1SBrad Love /* set XTAL capacitance */ 732b53f2fa1SBrad Love reg_val &= 0xFFFFFFE0; 733b53f2fa1SBrad Love reg_val |= dev_xtal->xtal_cap; 734b53f2fa1SBrad Love 735b53f2fa1SBrad Love /* set CLK OUT */ 736b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_enable ? (reg_val | 0x0100) : (reg_val & 0xFFFFFEFF); 737b53f2fa1SBrad Love 738b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 739b53f2fa1SBrad Love if (status) 740b53f2fa1SBrad Love goto err_finish; 741b53f2fa1SBrad Love 742b53f2fa1SBrad Love /* set CLK OUT divider */ 743b53f2fa1SBrad Love reg_val = dev_xtal->clk_out_div_enable ? (reg_val | 0x0200) : (reg_val & 0xFFFFFDFF); 744b53f2fa1SBrad Love 745b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 746b53f2fa1SBrad Love if (status) 747b53f2fa1SBrad Love goto err_finish; 748b53f2fa1SBrad Love 749b53f2fa1SBrad Love /* set XTAL sharing */ 750b53f2fa1SBrad Love reg_val = dev_xtal->xtal_sharing_enable ? (reg_val | 0x010400) : (reg_val & 0xFFFEFBFF); 751b53f2fa1SBrad Love 752b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); 753b53f2fa1SBrad Love if (status) 754b53f2fa1SBrad Love goto err_finish; 755b53f2fa1SBrad Love 756b53f2fa1SBrad Love /* enable/disable XTAL calibration, based on master/slave device */ 757b53f2fa1SBrad Love status = mxl692_memread(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 758b53f2fa1SBrad Love if (status) 759b53f2fa1SBrad Love goto err_finish; 760b53f2fa1SBrad Love 761b53f2fa1SBrad Love if (dev_xtal->xtal_calibration_enable) { 762b53f2fa1SBrad Love /* enable XTAL calibration and set XTAL amplitude to a higher value */ 763b53f2fa1SBrad Love reg_val1 &= 0xFFFFFFFD; 764b53f2fa1SBrad Love reg_val1 |= 0x30; 765b53f2fa1SBrad Love 766b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 767b53f2fa1SBrad Love if (status) 768b53f2fa1SBrad Love goto err_finish; 769b53f2fa1SBrad Love } else { 770b53f2fa1SBrad Love /* disable XTAL calibration */ 771b53f2fa1SBrad Love reg_val1 |= 0x2; 772b53f2fa1SBrad Love 773b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); 774b53f2fa1SBrad Love if (status) 775b53f2fa1SBrad Love goto err_finish; 776b53f2fa1SBrad Love 777b53f2fa1SBrad Love /* set XTAL bias value */ 778b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 779b53f2fa1SBrad Love if (status) 780b53f2fa1SBrad Love goto err_finish; 781b53f2fa1SBrad Love 782b53f2fa1SBrad Love reg_val &= 0xC0FFFFFF; 783b53f2fa1SBrad Love reg_val |= 0xA000000; 784b53f2fa1SBrad Love 785b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); 786b53f2fa1SBrad Love if (status) 787b53f2fa1SBrad Love goto err_finish; 788b53f2fa1SBrad Love } 789b53f2fa1SBrad Love 790b53f2fa1SBrad Love /* start XTAL calibration */ 791b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 792b53f2fa1SBrad Love if (status) 793b53f2fa1SBrad Love goto err_finish; 794b53f2fa1SBrad Love 795b53f2fa1SBrad Love reg_val |= 0x8; 796b53f2fa1SBrad Love 797b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); 798b53f2fa1SBrad Love if (status) 799b53f2fa1SBrad Love goto err_finish; 800b53f2fa1SBrad Love 801b53f2fa1SBrad Love status = mxl692_memread(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 802b53f2fa1SBrad Love if (status) 803b53f2fa1SBrad Love goto err_finish; 804b53f2fa1SBrad Love 805b53f2fa1SBrad Love reg_val |= 0x10; 806b53f2fa1SBrad Love 807b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); 808b53f2fa1SBrad Love if (status) 809b53f2fa1SBrad Love goto err_finish; 810b53f2fa1SBrad Love 811b53f2fa1SBrad Love status = mxl692_memread(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 812b53f2fa1SBrad Love if (status) 813b53f2fa1SBrad Love goto err_finish; 814b53f2fa1SBrad Love 815b53f2fa1SBrad Love reg_val &= 0xFFFFEFFF; 816b53f2fa1SBrad Love 817b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 818b53f2fa1SBrad Love if (status) 819b53f2fa1SBrad Love goto err_finish; 820b53f2fa1SBrad Love 821b53f2fa1SBrad Love reg_val |= 0x1000; 822b53f2fa1SBrad Love 823b53f2fa1SBrad Love status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); 824b53f2fa1SBrad Love if (status) 825b53f2fa1SBrad Love goto err_finish; 826b53f2fa1SBrad Love 827b53f2fa1SBrad Love usleep_range(45000, 55000); 828b53f2fa1SBrad Love 829b53f2fa1SBrad Love err_finish: 830b53f2fa1SBrad Love if (status) 831b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 832b53f2fa1SBrad Love return status; 833b53f2fa1SBrad Love } 834b53f2fa1SBrad Love 835b53f2fa1SBrad Love static int mxl692_powermode(struct mxl692_dev *dev, 836b53f2fa1SBrad Love enum MXL_EAGLE_POWER_MODE_E power_mode) 837b53f2fa1SBrad Love { 838b53f2fa1SBrad Love int status = 0; 839b53f2fa1SBrad Love u8 mode = power_mode; 840b53f2fa1SBrad Love 841b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%s\n", 842b53f2fa1SBrad Love power_mode == MXL_EAGLE_POWER_MODE_SLEEP ? "sleep" : "active"); 843b53f2fa1SBrad Love 844b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 845b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_POWERMODE_SET, 846b53f2fa1SBrad Love &mode, 847b53f2fa1SBrad Love sizeof(u8), 848b53f2fa1SBrad Love NULL, 849b53f2fa1SBrad Love 0); 850b53f2fa1SBrad Love if (status) { 851b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 852b53f2fa1SBrad Love return status; 853b53f2fa1SBrad Love } 854b53f2fa1SBrad Love 855b53f2fa1SBrad Love dev->power_mode = power_mode; 856b53f2fa1SBrad Love 857b53f2fa1SBrad Love return status; 858b53f2fa1SBrad Love } 859b53f2fa1SBrad Love 860b53f2fa1SBrad Love static int mxl692_init(struct dvb_frontend *fe) 861b53f2fa1SBrad Love { 862b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 863b53f2fa1SBrad Love struct i2c_client *client = dev->i2c_client; 864b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 865b53f2fa1SBrad Love int status = 0; 866b53f2fa1SBrad Love const struct firmware *firmware; 867b53f2fa1SBrad Love struct MXL_EAGLE_DEV_XTAL_T xtal_config = {}; 868b53f2fa1SBrad Love 869b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 870b53f2fa1SBrad Love 871b53f2fa1SBrad Love if (dev->init_done) 872b53f2fa1SBrad Love goto warm; 873b53f2fa1SBrad Love 874b53f2fa1SBrad Love dev->seqnum = 1; 875b53f2fa1SBrad Love 876b53f2fa1SBrad Love status = mxl692_reset(dev); 877b53f2fa1SBrad Love if (status) 878b53f2fa1SBrad Love goto err; 879b53f2fa1SBrad Love 880b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 1000! */ 881b53f2fa1SBrad Love 882b53f2fa1SBrad Love status = mxl692_config_regulators(dev, MXL_EAGLE_POWER_SUPPLY_SOURCE_DUAL); 883b53f2fa1SBrad Love if (status) 884b53f2fa1SBrad Love goto err; 885b53f2fa1SBrad Love 886b53f2fa1SBrad Love xtal_config.xtal_cap = 26; 887b53f2fa1SBrad Love xtal_config.clk_out_div_enable = 0; 888b53f2fa1SBrad Love xtal_config.clk_out_enable = 0; 889b53f2fa1SBrad Love xtal_config.xtal_calibration_enable = 0; 890b53f2fa1SBrad Love xtal_config.xtal_sharing_enable = 1; 891b53f2fa1SBrad Love status = mxl692_config_xtal(dev, &xtal_config); 892b53f2fa1SBrad Love if (status) 893b53f2fa1SBrad Love goto err; 894b53f2fa1SBrad Love 895b53f2fa1SBrad Love status = request_firmware(&firmware, MXL692_FIRMWARE, &client->dev); 896b53f2fa1SBrad Love if (status) { 897b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "firmware missing? %s\n", 898b53f2fa1SBrad Love MXL692_FIRMWARE); 899b53f2fa1SBrad Love goto err; 900b53f2fa1SBrad Love } 901b53f2fa1SBrad Love 902b53f2fa1SBrad Love status = mxl692_fwdownload(dev, firmware->data, firmware->size); 903b53f2fa1SBrad Love if (status) 904b53f2fa1SBrad Love goto err_release_firmware; 905b53f2fa1SBrad Love 906b53f2fa1SBrad Love release_firmware(firmware); 907b53f2fa1SBrad Love 908b53f2fa1SBrad Love status = mxl692_get_versions(dev); 909b53f2fa1SBrad Love if (status) 910b53f2fa1SBrad Love goto err; 911b53f2fa1SBrad Love 912b53f2fa1SBrad Love dev->power_mode = MXL_EAGLE_POWER_MODE_SLEEP; 913b53f2fa1SBrad Love warm: 914b53f2fa1SBrad Love /* Config Device Power Mode */ 915b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_ACTIVE) { 916b53f2fa1SBrad Love status = mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_ACTIVE); 917b53f2fa1SBrad Love if (status) 918b53f2fa1SBrad Love goto err; 919b53f2fa1SBrad Love 920b53f2fa1SBrad Love usleep_range(50 * 1000, 60 * 1000); /* was 500! */ 921b53f2fa1SBrad Love } 922b53f2fa1SBrad Love 923b53f2fa1SBrad Love /* Init stats here to indicate which stats are supported */ 924b53f2fa1SBrad Love c->cnr.len = 1; 925b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 926b53f2fa1SBrad Love c->post_bit_error.len = 1; 927b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 928b53f2fa1SBrad Love c->post_bit_count.len = 1; 929b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 930b53f2fa1SBrad Love c->block_error.len = 1; 931b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 932b53f2fa1SBrad Love 933b53f2fa1SBrad Love dev->init_done = 1; 934b53f2fa1SBrad Love return 0; 935b53f2fa1SBrad Love err_release_firmware: 936b53f2fa1SBrad Love release_firmware(firmware); 937b53f2fa1SBrad Love err: 938b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 939b53f2fa1SBrad Love return status; 940b53f2fa1SBrad Love } 941b53f2fa1SBrad Love 942b53f2fa1SBrad Love static int mxl692_sleep(struct dvb_frontend *fe) 943b53f2fa1SBrad Love { 944b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 945b53f2fa1SBrad Love 946b53f2fa1SBrad Love if (dev->power_mode != MXL_EAGLE_POWER_MODE_SLEEP) 947b53f2fa1SBrad Love mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_SLEEP); 948b53f2fa1SBrad Love 949b53f2fa1SBrad Love return 0; 950b53f2fa1SBrad Love } 951b53f2fa1SBrad Love 952b53f2fa1SBrad Love static int mxl692_set_frontend(struct dvb_frontend *fe) 953b53f2fa1SBrad Love { 954b53f2fa1SBrad Love struct dtv_frontend_properties *p = &fe->dtv_property_cache; 955b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 956b53f2fa1SBrad Love 957b53f2fa1SBrad Love int status = 0; 958b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type; 959b53f2fa1SBrad Love struct MXL_EAGLE_MPEGOUT_PARAMS_T mpeg_params = {}; 960b53f2fa1SBrad Love enum MXL_EAGLE_QAM_DEMOD_ANNEX_TYPE_E qam_annex = MXL_EAGLE_QAM_DEMOD_ANNEX_B; 961b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_PARAMS_T qam_params = {}; 962b53f2fa1SBrad Love struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T tuner_params = {}; 963b53f2fa1SBrad Love u8 op_param = 0; 964b53f2fa1SBrad Love 965b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 966b53f2fa1SBrad Love 967b53f2fa1SBrad Love switch (p->modulation) { 968b53f2fa1SBrad Love case VSB_8: 969b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_ATSC; 970b53f2fa1SBrad Love break; 971b53f2fa1SBrad Love case QAM_AUTO: 972b53f2fa1SBrad Love case QAM_64: 973b53f2fa1SBrad Love case QAM_128: 974b53f2fa1SBrad Love case QAM_256: 975b53f2fa1SBrad Love demod_type = MXL_EAGLE_DEMOD_TYPE_QAM; 976b53f2fa1SBrad Love break; 977b53f2fa1SBrad Love default: 978b53f2fa1SBrad Love return -EINVAL; 979b53f2fa1SBrad Love } 980b53f2fa1SBrad Love 981b53f2fa1SBrad Love if (dev->current_frequency == p->frequency && dev->demod_type == demod_type) { 982b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "already set up\n"); 983b53f2fa1SBrad Love return 0; 984b53f2fa1SBrad Love } 985b53f2fa1SBrad Love 986b53f2fa1SBrad Love dev->current_frequency = -1; 987b53f2fa1SBrad Love dev->demod_type = -1; 988b53f2fa1SBrad Love 989b53f2fa1SBrad Love op_param = demod_type; 990b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 991b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_DEMODULATOR_TYPE_SET, 992b53f2fa1SBrad Love &op_param, 993b53f2fa1SBrad Love sizeof(u8), 994b53f2fa1SBrad Love NULL, 995b53f2fa1SBrad Love 0); 996b53f2fa1SBrad Love if (status) { 997b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, 998b53f2fa1SBrad Love "DEVICE_DEMODULATOR_TYPE_SET...FAIL err 0x%x\n", status); 999b53f2fa1SBrad Love goto err; 1000b53f2fa1SBrad Love } 1001b53f2fa1SBrad Love 1002b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1003b53f2fa1SBrad Love 1004b53f2fa1SBrad Love mpeg_params.mpeg_parallel = 0; 1005b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_MSB_1ST; 1006b53f2fa1SBrad Love mpeg_params.mpeg_sync_pulse_width = MXL_EAGLE_DATA_SYNC_WIDTH_BIT; 1007b53f2fa1SBrad Love mpeg_params.mpeg_valid_pol = MXL_EAGLE_CLOCK_POSITIVE; 1008b53f2fa1SBrad Love mpeg_params.mpeg_sync_pol = MXL_EAGLE_CLOCK_POSITIVE; 1009b53f2fa1SBrad Love mpeg_params.mpeg_clk_pol = MXL_EAGLE_CLOCK_NEGATIVE; 1010b53f2fa1SBrad Love mpeg_params.mpeg3wire_mode_enable = 0; 1011b53f2fa1SBrad Love mpeg_params.mpeg_clk_freq = MXL_EAGLE_MPEG_CLOCK_27MHZ; 1012b53f2fa1SBrad Love 1013b53f2fa1SBrad Love switch (demod_type) { 1014b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1015b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1016b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1017b53f2fa1SBrad Love (u8 *)&mpeg_params, 1018b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1019b53f2fa1SBrad Love NULL, 1020b53f2fa1SBrad Love 0); 1021b53f2fa1SBrad Love if (status) 1022b53f2fa1SBrad Love goto err; 1023b53f2fa1SBrad Love break; 1024b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1025b53f2fa1SBrad Love if (qam_annex == MXL_EAGLE_QAM_DEMOD_ANNEX_A) 1026b53f2fa1SBrad Love mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_LSB_1ST; 1027b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1028b53f2fa1SBrad Love MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, 1029b53f2fa1SBrad Love (u8 *)&mpeg_params, 1030b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), 1031b53f2fa1SBrad Love NULL, 1032b53f2fa1SBrad Love 0); 1033b53f2fa1SBrad Love if (status) 1034b53f2fa1SBrad Love goto err; 1035b53f2fa1SBrad Love 1036b53f2fa1SBrad Love qam_params.annex_type = qam_annex; 1037b53f2fa1SBrad Love qam_params.qam_type = MXL_EAGLE_QAM_DEMOD_AUTO; 1038b53f2fa1SBrad Love qam_params.iq_flip = MXL_EAGLE_DEMOD_IQ_AUTO; 1039b53f2fa1SBrad Love if (p->modulation == QAM_64) 1040b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5057000; 1041b53f2fa1SBrad Love else 1042b53f2fa1SBrad Love qam_params.symbol_rate_hz = 5361000; 1043b53f2fa1SBrad Love 1044b53f2fa1SBrad Love qam_params.symbol_rate_256qam_hz = 5361000; 1045b53f2fa1SBrad Love 1046b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1047b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_PARAMS_SET, 1048b53f2fa1SBrad Love (u8 *)&qam_params, 1049b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_PARAMS_T), 1050b53f2fa1SBrad Love NULL, 0); 1051b53f2fa1SBrad Love if (status) 1052b53f2fa1SBrad Love goto err; 1053b53f2fa1SBrad Love 1054b53f2fa1SBrad Love break; 1055b53f2fa1SBrad Love default: 1056b53f2fa1SBrad Love break; 1057b53f2fa1SBrad Love } 1058b53f2fa1SBrad Love 1059b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1060b53f2fa1SBrad Love 1061b53f2fa1SBrad Love tuner_params.freq_hz = p->frequency; 1062b53f2fa1SBrad Love tuner_params.bandwidth = MXL_EAGLE_TUNER_BW_6MHZ; 1063b53f2fa1SBrad Love tuner_params.tune_mode = MXL_EAGLE_TUNER_CHANNEL_TUNE_MODE_VIEW; 1064b53f2fa1SBrad Love 1065b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, " Tuning Freq: %d %s\n", tuner_params.freq_hz, 1066b53f2fa1SBrad Love demod_type == MXL_EAGLE_DEMOD_TYPE_ATSC ? "ATSC" : "QAM"); 1067b53f2fa1SBrad Love 1068b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1069b53f2fa1SBrad Love MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET, 1070b53f2fa1SBrad Love (u8 *)&tuner_params, 1071b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T), 1072b53f2fa1SBrad Love NULL, 1073b53f2fa1SBrad Love 0); 1074b53f2fa1SBrad Love if (status) 1075b53f2fa1SBrad Love goto err; 1076b53f2fa1SBrad Love 1077b53f2fa1SBrad Love usleep_range(20 * 1000, 30 * 1000); /* was 500! */ 1078b53f2fa1SBrad Love 1079b53f2fa1SBrad Love switch (demod_type) { 1080b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1081b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1082b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_INIT_SET, 1083b53f2fa1SBrad Love NULL, 0, NULL, 0); 1084b53f2fa1SBrad Love if (status) 1085b53f2fa1SBrad Love goto err; 1086b53f2fa1SBrad Love break; 1087b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1088b53f2fa1SBrad Love status = mxl692_i2c_writeread(dev, 1089b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_RESTART_SET, 1090b53f2fa1SBrad Love NULL, 0, NULL, 0); 1091b53f2fa1SBrad Love if (status) 1092b53f2fa1SBrad Love goto err; 1093b53f2fa1SBrad Love break; 1094b53f2fa1SBrad Love default: 1095b53f2fa1SBrad Love break; 1096b53f2fa1SBrad Love } 1097b53f2fa1SBrad Love 1098b53f2fa1SBrad Love dev->demod_type = demod_type; 1099b53f2fa1SBrad Love dev->current_frequency = p->frequency; 1100b53f2fa1SBrad Love 1101b53f2fa1SBrad Love return 0; 1102b53f2fa1SBrad Love err: 1103b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", status); 1104b53f2fa1SBrad Love return status; 1105b53f2fa1SBrad Love } 1106b53f2fa1SBrad Love 1107b53f2fa1SBrad Love static int mxl692_get_frontend(struct dvb_frontend *fe, 1108b53f2fa1SBrad Love struct dtv_frontend_properties *p) 1109b53f2fa1SBrad Love { 1110b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1111b53f2fa1SBrad Love 1112b53f2fa1SBrad Love p->modulation = c->modulation; 1113b53f2fa1SBrad Love p->frequency = c->frequency; 1114b53f2fa1SBrad Love 1115b53f2fa1SBrad Love return 0; 1116b53f2fa1SBrad Love } 1117b53f2fa1SBrad Love 1118b53f2fa1SBrad Love static int mxl692_read_snr(struct dvb_frontend *fe, u16 *snr) 1119b53f2fa1SBrad Love { 1120b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1121b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1122b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1123b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1124b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1125b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1126b53f2fa1SBrad Love int mxl_status = 0; 1127b53f2fa1SBrad Love 1128b53f2fa1SBrad Love *snr = 0; 1129b53f2fa1SBrad Love 1130b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1131b53f2fa1SBrad Love 1132b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1133b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1134b53f2fa1SBrad Love 1135b53f2fa1SBrad Love switch (demod_type) { 1136b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1137b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1138b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1139b53f2fa1SBrad Love NULL, 1140b53f2fa1SBrad Love 0, 1141b53f2fa1SBrad Love rx_buf, 1142b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1143b53f2fa1SBrad Love if (!mxl_status) { 1144b53f2fa1SBrad Love *snr = (u16)(atsc_status->snr_db_tenths / 10); 1145b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1146b53f2fa1SBrad Love c->cnr.stat[0].svalue = *snr; 1147b53f2fa1SBrad Love } 1148b53f2fa1SBrad Love break; 1149b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1150b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1151b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1152b53f2fa1SBrad Love NULL, 1153b53f2fa1SBrad Love 0, 1154b53f2fa1SBrad Love rx_buf, 1155b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1156b53f2fa1SBrad Love if (!mxl_status) 1157b53f2fa1SBrad Love *snr = (u16)(qam_status->snr_db_tenths / 10); 1158b53f2fa1SBrad Love break; 1159b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1160b53f2fa1SBrad Love default: 1161b53f2fa1SBrad Love break; 1162b53f2fa1SBrad Love } 1163b53f2fa1SBrad Love 1164b53f2fa1SBrad Love if (mxl_status) 1165b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1166b53f2fa1SBrad Love return mxl_status; 1167b53f2fa1SBrad Love } 1168b53f2fa1SBrad Love 1169b53f2fa1SBrad Love static int mxl692_read_ber_ucb(struct dvb_frontend *fe) 1170b53f2fa1SBrad Love { 1171b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1172b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1173b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1174b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *atsc_errors; 1175b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1176b53f2fa1SBrad Love int mxl_status = 0; 1177b53f2fa1SBrad Love u32 utmp; 1178b53f2fa1SBrad Love 1179b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1180b53f2fa1SBrad Love 1181b53f2fa1SBrad Love atsc_errors = (struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *)&rx_buf; 1182b53f2fa1SBrad Love 1183b53f2fa1SBrad Love switch (demod_type) { 1184b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1185b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1186b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET, 1187b53f2fa1SBrad Love NULL, 1188b53f2fa1SBrad Love 0, 1189b53f2fa1SBrad Love rx_buf, 1190b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T)); 1191b53f2fa1SBrad Love if (!mxl_status) { 1192b53f2fa1SBrad Love if (atsc_errors->error_packets == 0) 1193b53f2fa1SBrad Love utmp = 0; 1194b53f2fa1SBrad Love else 1195b53f2fa1SBrad Love utmp = ((atsc_errors->error_bytes / atsc_errors->error_packets) * 1196b53f2fa1SBrad Love atsc_errors->total_packets); 1197b53f2fa1SBrad Love /* ber */ 1198b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 1199b53f2fa1SBrad Love c->post_bit_error.stat[0].uvalue += atsc_errors->error_bytes; 1200b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 1201b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue += utmp; 1202b53f2fa1SBrad Love /* ucb */ 1203b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_COUNTER; 1204b53f2fa1SBrad Love c->block_error.stat[0].uvalue += atsc_errors->error_packets; 1205b53f2fa1SBrad Love 1206b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "%llu %llu\n", 1207b53f2fa1SBrad Love c->post_bit_count.stat[0].uvalue, c->block_error.stat[0].uvalue); 1208b53f2fa1SBrad Love } 1209b53f2fa1SBrad Love break; 1210b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1211b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1212b53f2fa1SBrad Love default: 1213b53f2fa1SBrad Love break; 1214b53f2fa1SBrad Love } 1215b53f2fa1SBrad Love 1216b53f2fa1SBrad Love if (mxl_status) 1217b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1218b53f2fa1SBrad Love 1219b53f2fa1SBrad Love return mxl_status; 1220b53f2fa1SBrad Love } 1221b53f2fa1SBrad Love 1222b53f2fa1SBrad Love static int mxl692_read_status(struct dvb_frontend *fe, 1223b53f2fa1SBrad Love enum fe_status *status) 1224b53f2fa1SBrad Love { 1225b53f2fa1SBrad Love struct mxl692_dev *dev = fe->demodulator_priv; 1226b53f2fa1SBrad Love struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1227b53f2fa1SBrad Love u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; 1228b53f2fa1SBrad Love struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; 1229b53f2fa1SBrad Love struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; 1230b53f2fa1SBrad Love enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; 1231b53f2fa1SBrad Love int mxl_status = 0; 1232b53f2fa1SBrad Love *status = 0; 1233b53f2fa1SBrad Love 1234b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "\n"); 1235b53f2fa1SBrad Love 1236b53f2fa1SBrad Love atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; 1237b53f2fa1SBrad Love qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; 1238b53f2fa1SBrad Love 1239b53f2fa1SBrad Love switch (demod_type) { 1240b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_ATSC: 1241b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1242b53f2fa1SBrad Love MXL_EAGLE_OPCODE_ATSC_STATUS_GET, 1243b53f2fa1SBrad Love NULL, 1244b53f2fa1SBrad Love 0, 1245b53f2fa1SBrad Love rx_buf, 1246b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); 1247b53f2fa1SBrad Love if (!mxl_status && atsc_status->atsc_lock) { 1248b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1249b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1250b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1251b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1252b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1253b53f2fa1SBrad Love 1254b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1255b53f2fa1SBrad Love c->cnr.stat[0].svalue = atsc_status->snr_db_tenths / 10; 1256b53f2fa1SBrad Love } 1257b53f2fa1SBrad Love break; 1258b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_QAM: 1259b53f2fa1SBrad Love mxl_status = mxl692_i2c_writeread(dev, 1260b53f2fa1SBrad Love MXL_EAGLE_OPCODE_QAM_STATUS_GET, 1261b53f2fa1SBrad Love NULL, 1262b53f2fa1SBrad Love 0, 1263b53f2fa1SBrad Love rx_buf, 1264b53f2fa1SBrad Love sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); 1265b53f2fa1SBrad Love if (!mxl_status && qam_status->qam_locked) { 1266b53f2fa1SBrad Love *status |= FE_HAS_SIGNAL; 1267b53f2fa1SBrad Love *status |= FE_HAS_CARRIER; 1268b53f2fa1SBrad Love *status |= FE_HAS_VITERBI; 1269b53f2fa1SBrad Love *status |= FE_HAS_SYNC; 1270b53f2fa1SBrad Love *status |= FE_HAS_LOCK; 1271b53f2fa1SBrad Love 1272b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 1273b53f2fa1SBrad Love c->cnr.stat[0].svalue = qam_status->snr_db_tenths / 10; 1274b53f2fa1SBrad Love } 1275b53f2fa1SBrad Love break; 1276b53f2fa1SBrad Love case MXL_EAGLE_DEMOD_TYPE_OOB: 1277b53f2fa1SBrad Love default: 1278b53f2fa1SBrad Love break; 1279b53f2fa1SBrad Love } 1280b53f2fa1SBrad Love 1281b53f2fa1SBrad Love if ((*status & FE_HAS_LOCK) == 0) { 1282b53f2fa1SBrad Love /* No lock, reset all statistics */ 1283b53f2fa1SBrad Love c->cnr.len = 1; 1284b53f2fa1SBrad Love c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1285b53f2fa1SBrad Love c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1286b53f2fa1SBrad Love c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1287b53f2fa1SBrad Love c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1288b53f2fa1SBrad Love return 0; 1289b53f2fa1SBrad Love } 1290b53f2fa1SBrad Love 1291b53f2fa1SBrad Love if (mxl_status) 1292b53f2fa1SBrad Love dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); 1293b53f2fa1SBrad Love else 1294b53f2fa1SBrad Love mxl_status = mxl692_read_ber_ucb(fe); 1295b53f2fa1SBrad Love 1296b53f2fa1SBrad Love return mxl_status; 1297b53f2fa1SBrad Love } 1298b53f2fa1SBrad Love 1299b53f2fa1SBrad Love static const struct dvb_frontend_ops mxl692_ops = { 1300b53f2fa1SBrad Love .delsys = { SYS_ATSC }, 1301b53f2fa1SBrad Love .info = { 1302b53f2fa1SBrad Love .name = "MaxLinear MxL692 VSB tuner-demodulator", 1303b53f2fa1SBrad Love .frequency_min_hz = 54000000, 1304b53f2fa1SBrad Love .frequency_max_hz = 858000000, 1305b53f2fa1SBrad Love .frequency_stepsize_hz = 62500, 1306b53f2fa1SBrad Love .caps = FE_CAN_8VSB 1307b53f2fa1SBrad Love }, 1308b53f2fa1SBrad Love 1309b53f2fa1SBrad Love .init = mxl692_init, 1310b53f2fa1SBrad Love .sleep = mxl692_sleep, 1311b53f2fa1SBrad Love .set_frontend = mxl692_set_frontend, 1312b53f2fa1SBrad Love .get_frontend = mxl692_get_frontend, 1313b53f2fa1SBrad Love 1314b53f2fa1SBrad Love .read_status = mxl692_read_status, 1315b53f2fa1SBrad Love .read_snr = mxl692_read_snr, 1316b53f2fa1SBrad Love }; 1317b53f2fa1SBrad Love 1318b53f2fa1SBrad Love static int mxl692_probe(struct i2c_client *client, 1319b53f2fa1SBrad Love const struct i2c_device_id *id) 1320b53f2fa1SBrad Love { 1321b53f2fa1SBrad Love struct mxl692_config *config = client->dev.platform_data; 1322b53f2fa1SBrad Love struct mxl692_dev *dev; 1323b53f2fa1SBrad Love int ret = 0; 1324b53f2fa1SBrad Love 1325b53f2fa1SBrad Love dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1326b53f2fa1SBrad Love if (!dev) { 1327b53f2fa1SBrad Love ret = -ENOMEM; 1328b53f2fa1SBrad Love dev_dbg(&client->dev, "kzalloc() failed\n"); 1329b53f2fa1SBrad Love goto err; 1330b53f2fa1SBrad Love } 1331b53f2fa1SBrad Love 1332b53f2fa1SBrad Love memcpy(&dev->fe.ops, &mxl692_ops, sizeof(struct dvb_frontend_ops)); 1333b53f2fa1SBrad Love dev->fe.demodulator_priv = dev; 1334b53f2fa1SBrad Love dev->i2c_client = client; 1335b53f2fa1SBrad Love *config->fe = &dev->fe; 1336b53f2fa1SBrad Love mutex_init(&dev->i2c_lock); 1337b53f2fa1SBrad Love i2c_set_clientdata(client, dev); 1338b53f2fa1SBrad Love 1339b53f2fa1SBrad Love dev_info(&client->dev, "MaxLinear mxl692 successfully attached\n"); 1340b53f2fa1SBrad Love 1341b53f2fa1SBrad Love return 0; 1342b53f2fa1SBrad Love err: 1343b53f2fa1SBrad Love dev_dbg(&client->dev, "failed %d\n", ret); 1344b53f2fa1SBrad Love return -ENODEV; 1345b53f2fa1SBrad Love } 1346b53f2fa1SBrad Love 1347b53f2fa1SBrad Love static int mxl692_remove(struct i2c_client *client) 1348b53f2fa1SBrad Love { 1349b53f2fa1SBrad Love struct mxl692_dev *dev = i2c_get_clientdata(client); 1350b53f2fa1SBrad Love 1351b53f2fa1SBrad Love dev->fe.demodulator_priv = NULL; 1352b53f2fa1SBrad Love i2c_set_clientdata(client, NULL); 1353b53f2fa1SBrad Love kfree(dev); 1354b53f2fa1SBrad Love 1355b53f2fa1SBrad Love return 0; 1356b53f2fa1SBrad Love } 1357b53f2fa1SBrad Love 1358b53f2fa1SBrad Love static const struct i2c_device_id mxl692_id_table[] = { 1359b53f2fa1SBrad Love {"mxl692", 0}, 1360b53f2fa1SBrad Love {} 1361b53f2fa1SBrad Love }; 1362b53f2fa1SBrad Love MODULE_DEVICE_TABLE(i2c, mxl692_id_table); 1363b53f2fa1SBrad Love 1364b53f2fa1SBrad Love static struct i2c_driver mxl692_driver = { 1365b53f2fa1SBrad Love .driver = { 1366b53f2fa1SBrad Love .name = "mxl692", 1367b53f2fa1SBrad Love }, 1368b53f2fa1SBrad Love .probe = mxl692_probe, 1369b53f2fa1SBrad Love .remove = mxl692_remove, 1370b53f2fa1SBrad Love .id_table = mxl692_id_table, 1371b53f2fa1SBrad Love }; 1372b53f2fa1SBrad Love 1373b53f2fa1SBrad Love module_i2c_driver(mxl692_driver); 1374b53f2fa1SBrad Love 1375b53f2fa1SBrad Love MODULE_AUTHOR("Brad Love <brad@nextdimension.cc>"); 1376b53f2fa1SBrad Love MODULE_DESCRIPTION("MaxLinear MxL692 demodulator/tuner driver"); 1377b53f2fa1SBrad Love MODULE_FIRMWARE(MXL692_FIRMWARE); 1378b53f2fa1SBrad Love MODULE_LICENSE("GPL"); 1379