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1378 lines
35 KiB
1378 lines
35 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Driver for the MaxLinear MxL69x family of combo tuners/demods |
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* |
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* Copyright (C) 2020 Brad Love <[email protected]> |
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* |
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* based on code: |
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* Copyright (c) 2016 MaxLinear, Inc. All rights reserved |
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* which was released under GPL V2 |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* version 2, as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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|
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#include <linux/mutex.h> |
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#include <linux/i2c-mux.h> |
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#include <linux/string.h> |
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#include <linux/firmware.h> |
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|
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#include "mxl692.h" |
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#include "mxl692_defs.h" |
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|
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static const struct dvb_frontend_ops mxl692_ops; |
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struct mxl692_dev { |
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struct dvb_frontend fe; |
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struct i2c_client *i2c_client; |
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struct mutex i2c_lock; /* i2c command mutex */ |
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enum MXL_EAGLE_DEMOD_TYPE_E demod_type; |
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enum MXL_EAGLE_POWER_MODE_E power_mode; |
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u32 current_frequency; |
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int device_type; |
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int seqnum; |
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int init_done; |
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}; |
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|
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static int mxl692_i2c_write(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) |
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{ |
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int ret = 0; |
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struct i2c_msg msg = { |
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.addr = dev->i2c_client->addr, |
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.flags = 0, |
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.buf = buffer, |
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.len = buf_len |
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}; |
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|
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ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); |
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if (ret != 1) |
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dev_dbg(&dev->i2c_client->dev, "i2c write error!\n"); |
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|
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return ret; |
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} |
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|
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static int mxl692_i2c_read(struct mxl692_dev *dev, u8 *buffer, u16 buf_len) |
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{ |
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int ret = 0; |
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struct i2c_msg msg = { |
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.addr = dev->i2c_client->addr, |
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.flags = I2C_M_RD, |
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.buf = buffer, |
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.len = buf_len |
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}; |
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|
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ret = i2c_transfer(dev->i2c_client->adapter, &msg, 1); |
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if (ret != 1) |
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dev_dbg(&dev->i2c_client->dev, "i2c read error!\n"); |
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|
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return ret; |
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} |
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|
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static int convert_endian(u32 size, u8 *d) |
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{ |
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u32 i; |
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|
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for (i = 0; i < (size & ~3); i += 4) { |
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d[i + 0] ^= d[i + 3]; |
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d[i + 3] ^= d[i + 0]; |
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d[i + 0] ^= d[i + 3]; |
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|
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d[i + 1] ^= d[i + 2]; |
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d[i + 2] ^= d[i + 1]; |
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d[i + 1] ^= d[i + 2]; |
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} |
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|
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switch (size & 3) { |
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case 0: |
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case 1: |
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/* do nothing */ |
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break; |
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case 2: |
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d[i + 0] ^= d[i + 1]; |
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d[i + 1] ^= d[i + 0]; |
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d[i + 0] ^= d[i + 1]; |
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break; |
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|
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case 3: |
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d[i + 0] ^= d[i + 2]; |
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d[i + 2] ^= d[i + 0]; |
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d[i + 0] ^= d[i + 2]; |
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break; |
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} |
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return size; |
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} |
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|
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static int convert_endian_n(int n, u32 size, u8 *d) |
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{ |
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int i, count = 0; |
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|
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for (i = 0; i < n; i += size) |
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count += convert_endian(size, d + i); |
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return count; |
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} |
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static void mxl692_tx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) |
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{ |
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#ifdef __BIG_ENDIAN |
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return; |
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#endif |
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buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ |
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|
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switch (opcode) { |
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case MXL_EAGLE_OPCODE_DEVICE_INTR_MASK_SET: |
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case MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET: |
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case MXL_EAGLE_OPCODE_SMA_TRANSMIT_SET: |
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buffer += convert_endian(sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_PARAMS_SET: |
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buffer += 5; |
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buffer += convert_endian(2 * sizeof(u32), buffer); |
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break; |
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default: |
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/* no swapping - all get opcodes */ |
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/* ATSC/OOB no swapping */ |
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break; |
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} |
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} |
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static void mxl692_rx_swap(enum MXL_EAGLE_OPCODE_E opcode, u8 *buffer) |
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{ |
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#ifdef __BIG_ENDIAN |
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return; |
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#endif |
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buffer += MXL_EAGLE_HOST_MSG_HEADER_SIZE; /* skip API header */ |
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|
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switch (opcode) { |
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case MXL_EAGLE_OPCODE_TUNER_AGC_STATUS_GET: |
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buffer++; |
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buffer += convert_endian(2 * sizeof(u16), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_ATSC_STATUS_GET: |
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buffer += convert_endian_n(2, sizeof(u16), buffer); |
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buffer += convert_endian(sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET: |
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buffer += convert_endian(3 * sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_ATSC_EQUALIZER_FILTER_FFE_TAPS_GET: |
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buffer += convert_endian_n(24, sizeof(u16), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_STATUS_GET: |
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buffer += 8; |
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buffer += convert_endian_n(2, sizeof(u16), buffer); |
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buffer += convert_endian(sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_ERROR_COUNTERS_GET: |
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buffer += convert_endian(7 * sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_CONSTELLATION_VALUE_GET: |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_START_GET: |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_MIDDLE_GET: |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_DFE_END_GET: |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_START_GET: |
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buffer += convert_endian_n(24, sizeof(u16), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_SPUR_END_GET: |
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buffer += convert_endian_n(8, sizeof(u16), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_QAM_EQUALIZER_FILTER_FFE_GET: |
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buffer += convert_endian_n(17, sizeof(u16), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_OOB_ERROR_COUNTERS_GET: |
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buffer += convert_endian(3 * sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_OOB_STATUS_GET: |
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buffer += convert_endian_n(2, sizeof(u16), buffer); |
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buffer += convert_endian(sizeof(u32), buffer); |
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break; |
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case MXL_EAGLE_OPCODE_SMA_RECEIVE_GET: |
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buffer += convert_endian(sizeof(u32), buffer); |
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break; |
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default: |
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/* no swapping - all set opcodes */ |
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break; |
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} |
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} |
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static u32 mxl692_checksum(u8 *buffer, u32 size) |
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{ |
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u32 ix, div_size; |
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u32 cur_cksum = 0; |
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__be32 *buf; |
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div_size = DIV_ROUND_UP(size, 4); |
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buf = (__be32 *)buffer; |
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for (ix = 0; ix < div_size; ix++) |
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cur_cksum += be32_to_cpu(buf[ix]); |
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cur_cksum ^= 0xDEADBEEF; |
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return cur_cksum; |
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} |
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static int mxl692_validate_fw_header(struct mxl692_dev *dev, |
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const u8 *buffer, u32 buf_len) |
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{ |
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int status = 0; |
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u32 ix, temp; |
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__be32 *local_buf = NULL; |
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u8 temp_cksum = 0; |
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const u8 fw_hdr[] = { 0x4D, 0x31, 0x10, 0x02, 0x40, 0x00, 0x00, 0x80 }; |
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if (memcmp(buffer, fw_hdr, 8) != 0) { |
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status = -EINVAL; |
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goto err_finish; |
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} |
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local_buf = (__be32 *)(buffer + 8); |
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temp = be32_to_cpu(*local_buf); |
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if ((buf_len - 16) != temp >> 8) { |
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status = -EINVAL; |
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goto err_finish; |
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} |
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for (ix = 16; ix < buf_len; ix++) |
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temp_cksum += buffer[ix]; |
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if (temp_cksum != buffer[11]) |
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status = -EINVAL; |
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err_finish: |
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if (status) |
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dev_dbg(&dev->i2c_client->dev, "failed\n"); |
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return status; |
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} |
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static int mxl692_write_fw_block(struct mxl692_dev *dev, const u8 *buffer, |
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u32 buf_len, u32 *index) |
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{ |
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int status = 0; |
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u32 ix = 0, total_len = 0, addr = 0, chunk_len = 0, prevchunk_len = 0; |
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u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; |
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int payload_max = MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE; |
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ix = *index; |
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if (buffer[ix] == 0x53) { |
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total_len = buffer[ix + 1] << 16 | buffer[ix + 2] << 8 | buffer[ix + 3]; |
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total_len = (total_len + 3) & ~3; |
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addr = buffer[ix + 4] << 24 | buffer[ix + 5] << 16 | |
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buffer[ix + 6] << 8 | buffer[ix + 7]; |
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ix += MXL_EAGLE_FW_SEGMENT_HEADER_SIZE; |
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while ((total_len > 0) && (status == 0)) { |
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plocal_buf = local_buf; |
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chunk_len = (total_len < payload_max) ? total_len : payload_max; |
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*plocal_buf++ = 0xFC; |
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*plocal_buf++ = chunk_len + sizeof(u32); |
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*(u32 *)plocal_buf = addr + prevchunk_len; |
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#ifdef __BIG_ENDIAN |
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convert_endian(sizeof(u32), plocal_buf); |
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#endif |
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plocal_buf += sizeof(u32); |
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memcpy(plocal_buf, &buffer[ix], chunk_len); |
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convert_endian(chunk_len, plocal_buf); |
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if (mxl692_i2c_write(dev, local_buf, |
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(chunk_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { |
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status = -EREMOTEIO; |
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break; |
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} |
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prevchunk_len += chunk_len; |
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total_len -= chunk_len; |
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ix += chunk_len; |
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} |
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*index = ix; |
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} else { |
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status = -EINVAL; |
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} |
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if (status) |
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dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
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return status; |
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} |
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static int mxl692_memwrite(struct mxl692_dev *dev, u32 addr, |
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u8 *buffer, u32 size) |
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{ |
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int status = 0, total_len = 0; |
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u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; |
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total_len = size; |
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total_len = (total_len + 3) & ~3; /* 4 byte alignment */ |
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if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_MHEADER_SIZE)) |
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dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); |
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plocal_buf = local_buf; |
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*plocal_buf++ = 0xFC; |
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*plocal_buf++ = total_len + sizeof(u32); |
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*(u32 *)plocal_buf = addr; |
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plocal_buf += sizeof(u32); |
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|
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memcpy(plocal_buf, buffer, total_len); |
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#ifdef __BIG_ENDIAN |
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convert_endian(sizeof(u32) + total_len, local_buf + 2); |
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#endif |
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if (mxl692_i2c_write(dev, local_buf, |
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(total_len + MXL_EAGLE_I2C_MHEADER_SIZE)) < 0) { |
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status = -EREMOTEIO; |
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goto err_finish; |
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} |
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|
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return status; |
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err_finish: |
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dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
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return status; |
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} |
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|
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static int mxl692_memread(struct mxl692_dev *dev, u32 addr, |
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u8 *buffer, u32 size) |
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{ |
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int status = 0; |
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u8 local_buf[MXL_EAGLE_I2C_MHEADER_SIZE] = {}, *plocal_buf = NULL; |
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plocal_buf = local_buf; |
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|
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*plocal_buf++ = 0xFB; |
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*plocal_buf++ = sizeof(u32); |
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*(u32 *)plocal_buf = addr; |
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#ifdef __BIG_ENDIAN |
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convert_endian(sizeof(u32), plocal_buf); |
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#endif |
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mutex_lock(&dev->i2c_lock); |
|
|
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if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_MHEADER_SIZE) > 0) { |
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size = (size + 3) & ~3; /* 4 byte alignment */ |
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status = mxl692_i2c_read(dev, buffer, (u16)size) < 0 ? -EREMOTEIO : 0; |
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#ifdef __BIG_ENDIAN |
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if (status == 0) |
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convert_endian(size, buffer); |
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#endif |
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} else { |
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status = -EREMOTEIO; |
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} |
|
|
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mutex_unlock(&dev->i2c_lock); |
|
|
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if (status) |
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dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
|
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return status; |
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} |
|
|
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static const char *mxl692_opcode_string(u8 opcode) |
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{ |
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if (opcode >= 0 && opcode <= MXL_EAGLE_OPCODE_INTERNAL) |
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return MXL_EAGLE_OPCODE_STRING[opcode]; |
|
|
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return "invalid opcode"; |
|
} |
|
|
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static int mxl692_opwrite(struct mxl692_dev *dev, u8 *buffer, |
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u32 size) |
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{ |
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int status = 0, total_len = 0; |
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u8 local_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}, *plocal_buf = NULL; |
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struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_hdr = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)buffer; |
|
|
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total_len = size; |
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total_len = (total_len + 3) & ~3; /* 4 byte alignment */ |
|
|
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if (total_len > (MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) |
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dev_dbg(&dev->i2c_client->dev, "hrmph?\n"); |
|
|
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plocal_buf = local_buf; |
|
|
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*plocal_buf++ = 0xFE; |
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*plocal_buf++ = (u8)total_len; |
|
|
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memcpy(plocal_buf, buffer, total_len); |
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convert_endian(total_len, plocal_buf); |
|
|
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if (mxl692_i2c_write(dev, local_buf, |
|
(total_len + MXL_EAGLE_I2C_PHEADER_SIZE)) < 0) { |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "opcode %s err %d\n", |
|
mxl692_opcode_string(tx_hdr->opcode), status); |
|
return status; |
|
} |
|
|
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static int mxl692_opread(struct mxl692_dev *dev, u8 *buffer, |
|
u32 size) |
|
{ |
|
int status = 0; |
|
u32 ix = 0; |
|
u8 local_buf[MXL_EAGLE_I2C_PHEADER_SIZE] = {}; |
|
|
|
local_buf[0] = 0xFD; |
|
local_buf[1] = 0; |
|
|
|
if (mxl692_i2c_write(dev, local_buf, MXL_EAGLE_I2C_PHEADER_SIZE) > 0) { |
|
size = (size + 3) & ~3; /* 4 byte alignment */ |
|
|
|
/* Read in 4 byte chunks */ |
|
for (ix = 0; ix < size; ix += 4) { |
|
if (mxl692_i2c_read(dev, buffer + ix, 4) < 0) { |
|
dev_dbg(&dev->i2c_client->dev, "ix=%d size=%d\n", ix, size); |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
} |
|
convert_endian(size, buffer); |
|
} else { |
|
status = -EREMOTEIO; |
|
} |
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_i2c_writeread(struct mxl692_dev *dev, |
|
u8 opcode, |
|
u8 *tx_payload, |
|
u8 tx_payload_size, |
|
u8 *rx_payload, |
|
u8 rx_payload_expected) |
|
{ |
|
int status = 0, timeout = 40; |
|
u8 tx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
u32 resp_checksum = 0, resp_checksum_tmp = 0; |
|
struct MXL_EAGLE_HOST_MSG_HEADER_T *tx_header; |
|
struct MXL_EAGLE_HOST_MSG_HEADER_T *rx_header; |
|
|
|
mutex_lock(&dev->i2c_lock); |
|
|
|
if ((tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE) > |
|
(MXL_EAGLE_MAX_I2C_PACKET_SIZE - MXL_EAGLE_I2C_PHEADER_SIZE)) { |
|
status = -EINVAL; |
|
goto err_finish; |
|
} |
|
|
|
tx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)tx_buf; |
|
tx_header->opcode = opcode; |
|
tx_header->seqnum = dev->seqnum++; |
|
tx_header->payload_size = tx_payload_size; |
|
tx_header->checksum = 0; |
|
|
|
if (dev->seqnum == 0) |
|
dev->seqnum = 1; |
|
|
|
if (tx_payload && tx_payload_size > 0) |
|
memcpy(&tx_buf[MXL_EAGLE_HOST_MSG_HEADER_SIZE], tx_payload, tx_payload_size); |
|
|
|
mxl692_tx_swap(opcode, tx_buf); |
|
|
|
tx_header->checksum = 0; |
|
tx_header->checksum = mxl692_checksum(tx_buf, |
|
MXL_EAGLE_HOST_MSG_HEADER_SIZE + tx_payload_size); |
|
#ifdef __LITTLE_ENDIAN |
|
convert_endian(4, (u8 *)&tx_header->checksum); /* cksum is big endian */ |
|
#endif |
|
/* send Tx message */ |
|
status = mxl692_opwrite(dev, tx_buf, |
|
tx_payload_size + MXL_EAGLE_HOST_MSG_HEADER_SIZE); |
|
if (status) { |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
|
|
/* receive Rx message (polling) */ |
|
rx_header = (struct MXL_EAGLE_HOST_MSG_HEADER_T *)rx_buf; |
|
|
|
do { |
|
status = mxl692_opread(dev, rx_buf, |
|
rx_payload_expected + MXL_EAGLE_HOST_MSG_HEADER_SIZE); |
|
usleep_range(1000, 2000); |
|
timeout--; |
|
} while ((timeout > 0) && (status == 0) && |
|
(rx_header->seqnum == 0) && |
|
(rx_header->checksum == 0)); |
|
|
|
if (timeout == 0 || status) { |
|
dev_dbg(&dev->i2c_client->dev, "timeout=%d status=%d\n", |
|
timeout, status); |
|
status = -ETIMEDOUT; |
|
goto err_finish; |
|
} |
|
|
|
if (rx_header->status) { |
|
dev_dbg(&dev->i2c_client->dev, "rx header status code: %d\n", rx_header->status); |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
|
|
if (rx_header->seqnum != tx_header->seqnum || |
|
rx_header->opcode != tx_header->opcode || |
|
rx_header->payload_size != rx_payload_expected) { |
|
dev_dbg(&dev->i2c_client->dev, "Something failed seq=%s opcode=%s pSize=%s\n", |
|
rx_header->seqnum != tx_header->seqnum ? "X" : "0", |
|
rx_header->opcode != tx_header->opcode ? "X" : "0", |
|
rx_header->payload_size != rx_payload_expected ? "X" : "0"); |
|
if (rx_header->payload_size != rx_payload_expected) |
|
dev_dbg(&dev->i2c_client->dev, |
|
"rx_header->payloadSize=%d rx_payload_expected=%d\n", |
|
rx_header->payload_size, rx_payload_expected); |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
|
|
resp_checksum = rx_header->checksum; |
|
rx_header->checksum = 0; |
|
|
|
resp_checksum_tmp = mxl692_checksum(rx_buf, |
|
MXL_EAGLE_HOST_MSG_HEADER_SIZE + rx_header->payload_size); |
|
#ifdef __LITTLE_ENDIAN |
|
convert_endian(4, (u8 *)&resp_checksum_tmp); /* cksum is big endian */ |
|
#endif |
|
if (resp_checksum != resp_checksum_tmp) { |
|
dev_dbg(&dev->i2c_client->dev, "rx checksum failure\n"); |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
|
|
mxl692_rx_swap(rx_header->opcode, rx_buf); |
|
|
|
if (rx_header->payload_size > 0) { |
|
if (!rx_payload) { |
|
dev_dbg(&dev->i2c_client->dev, "no rx payload?!?\n"); |
|
status = -EREMOTEIO; |
|
goto err_finish; |
|
} |
|
memcpy(rx_payload, rx_buf + MXL_EAGLE_HOST_MSG_HEADER_SIZE, |
|
rx_header->payload_size); |
|
} |
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
|
|
mutex_unlock(&dev->i2c_lock); |
|
return status; |
|
} |
|
|
|
static int mxl692_fwdownload(struct mxl692_dev *dev, |
|
const u8 *firmware_buf, u32 buf_len) |
|
{ |
|
int status = 0; |
|
u32 ix, reg_val = 0x1; |
|
u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
struct MXL_EAGLE_DEV_STATUS_T *dev_status; |
|
|
|
if (buf_len < MXL_EAGLE_FW_HEADER_SIZE || |
|
buf_len > MXL_EAGLE_FW_MAX_SIZE_IN_KB * 1000) |
|
return -EINVAL; |
|
|
|
mutex_lock(&dev->i2c_lock); |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
status = mxl692_validate_fw_header(dev, firmware_buf, buf_len); |
|
if (status) |
|
goto err_finish; |
|
|
|
ix = 16; |
|
status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* DRAM */ |
|
if (status) |
|
goto err_finish; |
|
|
|
status = mxl692_write_fw_block(dev, firmware_buf, buf_len, &ix); /* IRAM */ |
|
if (status) |
|
goto err_finish; |
|
|
|
/* release CPU from reset */ |
|
status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
mutex_unlock(&dev->i2c_lock); |
|
|
|
if (status == 0) { |
|
/* verify FW is alive */ |
|
usleep_range(MXL_EAGLE_FW_LOAD_TIME * 1000, (MXL_EAGLE_FW_LOAD_TIME + 5) * 1000); |
|
dev_status = (struct MXL_EAGLE_DEV_STATUS_T *)&rx_buf; |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_DEVICE_STATUS_GET, |
|
NULL, |
|
0, |
|
(u8 *)dev_status, |
|
sizeof(struct MXL_EAGLE_DEV_STATUS_T)); |
|
} |
|
|
|
return status; |
|
err_finish: |
|
mutex_unlock(&dev->i2c_lock); |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_get_versions(struct mxl692_dev *dev) |
|
{ |
|
int status = 0; |
|
struct MXL_EAGLE_DEV_VER_T dev_ver = {}; |
|
static const char * const chip_id[] = {"N/A", "691", "248", "692"}; |
|
|
|
status = mxl692_i2c_writeread(dev, MXL_EAGLE_OPCODE_DEVICE_VERSION_GET, |
|
NULL, |
|
0, |
|
(u8 *)&dev_ver, |
|
sizeof(struct MXL_EAGLE_DEV_VER_T)); |
|
if (status) |
|
return status; |
|
|
|
dev_info(&dev->i2c_client->dev, "MxL692_DEMOD Chip ID: %s\n", |
|
chip_id[dev_ver.chip_id]); |
|
|
|
dev_info(&dev->i2c_client->dev, |
|
"MxL692_DEMOD FW Version: %d.%d.%d.%d_RC%d\n", |
|
dev_ver.firmware_ver[0], |
|
dev_ver.firmware_ver[1], |
|
dev_ver.firmware_ver[2], |
|
dev_ver.firmware_ver[3], |
|
dev_ver.firmware_ver[4]); |
|
|
|
return status; |
|
} |
|
|
|
static int mxl692_reset(struct mxl692_dev *dev) |
|
{ |
|
int status = 0; |
|
u32 dev_type = MXL_EAGLE_DEVICE_MAX, reg_val = 0x2; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
/* legacy i2c override */ |
|
status = mxl692_memwrite(dev, 0x80000100, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* verify sku */ |
|
status = mxl692_memread(dev, 0x70000188, (u8 *)&dev_type, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
if (dev_type != dev->device_type) |
|
goto err_finish; |
|
|
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_config_regulators(struct mxl692_dev *dev, |
|
enum MXL_EAGLE_POWER_SUPPLY_SOURCE_E power_supply) |
|
{ |
|
int status = 0; |
|
u32 reg_val; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
/* configure main regulator according to the power supply source */ |
|
status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val &= 0x00FFFFFF; |
|
reg_val |= (power_supply == MXL_EAGLE_POWER_SUPPLY_SOURCE_SINGLE) ? |
|
0x14000000 : 0x10000000; |
|
|
|
status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* configure digital regulator to high current mode */ |
|
status = mxl692_memread(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val |= 0x800; |
|
|
|
status = mxl692_memwrite(dev, 0x90000018, (u8 *)®_val, sizeof(u32)); |
|
|
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_config_xtal(struct mxl692_dev *dev, |
|
struct MXL_EAGLE_DEV_XTAL_T *dev_xtal) |
|
{ |
|
int status = 0; |
|
u32 reg_val, reg_val1; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
status = mxl692_memread(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* set XTAL capacitance */ |
|
reg_val &= 0xFFFFFFE0; |
|
reg_val |= dev_xtal->xtal_cap; |
|
|
|
/* set CLK OUT */ |
|
reg_val = dev_xtal->clk_out_enable ? (reg_val | 0x0100) : (reg_val & 0xFFFFFEFF); |
|
|
|
status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* set CLK OUT divider */ |
|
reg_val = dev_xtal->clk_out_div_enable ? (reg_val | 0x0200) : (reg_val & 0xFFFFFDFF); |
|
|
|
status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* set XTAL sharing */ |
|
reg_val = dev_xtal->xtal_sharing_enable ? (reg_val | 0x010400) : (reg_val & 0xFFFEFBFF); |
|
|
|
status = mxl692_memwrite(dev, 0x90000000, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* enable/disable XTAL calibration, based on master/slave device */ |
|
status = mxl692_memread(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
if (dev_xtal->xtal_calibration_enable) { |
|
/* enable XTAL calibration and set XTAL amplitude to a higher value */ |
|
reg_val1 &= 0xFFFFFFFD; |
|
reg_val1 |= 0x30; |
|
|
|
status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
} else { |
|
/* disable XTAL calibration */ |
|
reg_val1 |= 0x2; |
|
|
|
status = mxl692_memwrite(dev, 0x90000030, (u8 *)®_val1, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
/* set XTAL bias value */ |
|
status = mxl692_memread(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val &= 0xC0FFFFFF; |
|
reg_val |= 0xA000000; |
|
|
|
status = mxl692_memwrite(dev, 0x9000002c, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
} |
|
|
|
/* start XTAL calibration */ |
|
status = mxl692_memread(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val |= 0x8; |
|
|
|
status = mxl692_memwrite(dev, 0x70000010, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
status = mxl692_memread(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val |= 0x10; |
|
|
|
status = mxl692_memwrite(dev, 0x70000018, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
status = mxl692_memread(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val &= 0xFFFFEFFF; |
|
|
|
status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
reg_val |= 0x1000; |
|
|
|
status = mxl692_memwrite(dev, 0x9001014c, (u8 *)®_val, sizeof(u32)); |
|
if (status) |
|
goto err_finish; |
|
|
|
usleep_range(45000, 55000); |
|
|
|
err_finish: |
|
if (status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_powermode(struct mxl692_dev *dev, |
|
enum MXL_EAGLE_POWER_MODE_E power_mode) |
|
{ |
|
int status = 0; |
|
u8 mode = power_mode; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "%s\n", |
|
power_mode == MXL_EAGLE_POWER_MODE_SLEEP ? "sleep" : "active"); |
|
|
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_DEVICE_POWERMODE_SET, |
|
&mode, |
|
sizeof(u8), |
|
NULL, |
|
0); |
|
if (status) { |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
dev->power_mode = power_mode; |
|
|
|
return status; |
|
} |
|
|
|
static int mxl692_init(struct dvb_frontend *fe) |
|
{ |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
struct i2c_client *client = dev->i2c_client; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
int status = 0; |
|
const struct firmware *firmware; |
|
struct MXL_EAGLE_DEV_XTAL_T xtal_config = {}; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
if (dev->init_done) |
|
goto warm; |
|
|
|
dev->seqnum = 1; |
|
|
|
status = mxl692_reset(dev); |
|
if (status) |
|
goto err; |
|
|
|
usleep_range(50 * 1000, 60 * 1000); /* was 1000! */ |
|
|
|
status = mxl692_config_regulators(dev, MXL_EAGLE_POWER_SUPPLY_SOURCE_DUAL); |
|
if (status) |
|
goto err; |
|
|
|
xtal_config.xtal_cap = 26; |
|
xtal_config.clk_out_div_enable = 0; |
|
xtal_config.clk_out_enable = 0; |
|
xtal_config.xtal_calibration_enable = 0; |
|
xtal_config.xtal_sharing_enable = 1; |
|
status = mxl692_config_xtal(dev, &xtal_config); |
|
if (status) |
|
goto err; |
|
|
|
status = request_firmware(&firmware, MXL692_FIRMWARE, &client->dev); |
|
if (status) { |
|
dev_dbg(&dev->i2c_client->dev, "firmware missing? %s\n", |
|
MXL692_FIRMWARE); |
|
goto err; |
|
} |
|
|
|
status = mxl692_fwdownload(dev, firmware->data, firmware->size); |
|
if (status) |
|
goto err_release_firmware; |
|
|
|
release_firmware(firmware); |
|
|
|
status = mxl692_get_versions(dev); |
|
if (status) |
|
goto err; |
|
|
|
dev->power_mode = MXL_EAGLE_POWER_MODE_SLEEP; |
|
warm: |
|
/* Config Device Power Mode */ |
|
if (dev->power_mode != MXL_EAGLE_POWER_MODE_ACTIVE) { |
|
status = mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_ACTIVE); |
|
if (status) |
|
goto err; |
|
|
|
usleep_range(50 * 1000, 60 * 1000); /* was 500! */ |
|
} |
|
|
|
/* Init stats here to indicate which stats are supported */ |
|
c->cnr.len = 1; |
|
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->post_bit_error.len = 1; |
|
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->post_bit_count.len = 1; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->block_error.len = 1; |
|
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
|
|
dev->init_done = 1; |
|
return 0; |
|
err_release_firmware: |
|
release_firmware(firmware); |
|
err: |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_sleep(struct dvb_frontend *fe) |
|
{ |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
|
|
if (dev->power_mode != MXL_EAGLE_POWER_MODE_SLEEP) |
|
mxl692_powermode(dev, MXL_EAGLE_POWER_MODE_SLEEP); |
|
|
|
return 0; |
|
} |
|
|
|
static int mxl692_set_frontend(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
|
|
int status = 0; |
|
enum MXL_EAGLE_DEMOD_TYPE_E demod_type; |
|
struct MXL_EAGLE_MPEGOUT_PARAMS_T mpeg_params = {}; |
|
enum MXL_EAGLE_QAM_DEMOD_ANNEX_TYPE_E qam_annex = MXL_EAGLE_QAM_DEMOD_ANNEX_B; |
|
struct MXL_EAGLE_QAM_DEMOD_PARAMS_T qam_params = {}; |
|
struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T tuner_params = {}; |
|
u8 op_param = 0; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
switch (p->modulation) { |
|
case VSB_8: |
|
demod_type = MXL_EAGLE_DEMOD_TYPE_ATSC; |
|
break; |
|
case QAM_AUTO: |
|
case QAM_64: |
|
case QAM_128: |
|
case QAM_256: |
|
demod_type = MXL_EAGLE_DEMOD_TYPE_QAM; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
if (dev->current_frequency == p->frequency && dev->demod_type == demod_type) { |
|
dev_dbg(&dev->i2c_client->dev, "already set up\n"); |
|
return 0; |
|
} |
|
|
|
dev->current_frequency = -1; |
|
dev->demod_type = -1; |
|
|
|
op_param = demod_type; |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_DEVICE_DEMODULATOR_TYPE_SET, |
|
&op_param, |
|
sizeof(u8), |
|
NULL, |
|
0); |
|
if (status) { |
|
dev_dbg(&dev->i2c_client->dev, |
|
"DEVICE_DEMODULATOR_TYPE_SET...FAIL err 0x%x\n", status); |
|
goto err; |
|
} |
|
|
|
usleep_range(20 * 1000, 30 * 1000); /* was 500! */ |
|
|
|
mpeg_params.mpeg_parallel = 0; |
|
mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_MSB_1ST; |
|
mpeg_params.mpeg_sync_pulse_width = MXL_EAGLE_DATA_SYNC_WIDTH_BIT; |
|
mpeg_params.mpeg_valid_pol = MXL_EAGLE_CLOCK_POSITIVE; |
|
mpeg_params.mpeg_sync_pol = MXL_EAGLE_CLOCK_POSITIVE; |
|
mpeg_params.mpeg_clk_pol = MXL_EAGLE_CLOCK_NEGATIVE; |
|
mpeg_params.mpeg3wire_mode_enable = 0; |
|
mpeg_params.mpeg_clk_freq = MXL_EAGLE_MPEG_CLOCK_27MHZ; |
|
|
|
switch (demod_type) { |
|
case MXL_EAGLE_DEMOD_TYPE_ATSC: |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, |
|
(u8 *)&mpeg_params, |
|
sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), |
|
NULL, |
|
0); |
|
if (status) |
|
goto err; |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_QAM: |
|
if (qam_annex == MXL_EAGLE_QAM_DEMOD_ANNEX_A) |
|
mpeg_params.msb_first = MXL_EAGLE_DATA_SERIAL_LSB_1ST; |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_DEVICE_MPEG_OUT_PARAMS_SET, |
|
(u8 *)&mpeg_params, |
|
sizeof(struct MXL_EAGLE_MPEGOUT_PARAMS_T), |
|
NULL, |
|
0); |
|
if (status) |
|
goto err; |
|
|
|
qam_params.annex_type = qam_annex; |
|
qam_params.qam_type = MXL_EAGLE_QAM_DEMOD_AUTO; |
|
qam_params.iq_flip = MXL_EAGLE_DEMOD_IQ_AUTO; |
|
if (p->modulation == QAM_64) |
|
qam_params.symbol_rate_hz = 5057000; |
|
else |
|
qam_params.symbol_rate_hz = 5361000; |
|
|
|
qam_params.symbol_rate_256qam_hz = 5361000; |
|
|
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_QAM_PARAMS_SET, |
|
(u8 *)&qam_params, |
|
sizeof(struct MXL_EAGLE_QAM_DEMOD_PARAMS_T), |
|
NULL, 0); |
|
if (status) |
|
goto err; |
|
|
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
usleep_range(20 * 1000, 30 * 1000); /* was 500! */ |
|
|
|
tuner_params.freq_hz = p->frequency; |
|
tuner_params.bandwidth = MXL_EAGLE_TUNER_BW_6MHZ; |
|
tuner_params.tune_mode = MXL_EAGLE_TUNER_CHANNEL_TUNE_MODE_VIEW; |
|
|
|
dev_dbg(&dev->i2c_client->dev, " Tuning Freq: %d %s\n", tuner_params.freq_hz, |
|
demod_type == MXL_EAGLE_DEMOD_TYPE_ATSC ? "ATSC" : "QAM"); |
|
|
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_TUNER_CHANNEL_TUNE_SET, |
|
(u8 *)&tuner_params, |
|
sizeof(struct MXL_EAGLE_TUNER_CHANNEL_PARAMS_T), |
|
NULL, |
|
0); |
|
if (status) |
|
goto err; |
|
|
|
usleep_range(20 * 1000, 30 * 1000); /* was 500! */ |
|
|
|
switch (demod_type) { |
|
case MXL_EAGLE_DEMOD_TYPE_ATSC: |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_ATSC_INIT_SET, |
|
NULL, 0, NULL, 0); |
|
if (status) |
|
goto err; |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_QAM: |
|
status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_QAM_RESTART_SET, |
|
NULL, 0, NULL, 0); |
|
if (status) |
|
goto err; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
dev->demod_type = demod_type; |
|
dev->current_frequency = p->frequency; |
|
|
|
return 0; |
|
err: |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", status); |
|
return status; |
|
} |
|
|
|
static int mxl692_get_frontend(struct dvb_frontend *fe, |
|
struct dtv_frontend_properties *p) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
|
|
p->modulation = c->modulation; |
|
p->frequency = c->frequency; |
|
|
|
return 0; |
|
} |
|
|
|
static int mxl692_read_snr(struct dvb_frontend *fe, u16 *snr) |
|
{ |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; |
|
struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; |
|
enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; |
|
int mxl_status = 0; |
|
|
|
*snr = 0; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; |
|
qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; |
|
|
|
switch (demod_type) { |
|
case MXL_EAGLE_DEMOD_TYPE_ATSC: |
|
mxl_status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_ATSC_STATUS_GET, |
|
NULL, |
|
0, |
|
rx_buf, |
|
sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); |
|
if (!mxl_status) { |
|
*snr = (u16)(atsc_status->snr_db_tenths / 10); |
|
c->cnr.stat[0].scale = FE_SCALE_DECIBEL; |
|
c->cnr.stat[0].svalue = *snr; |
|
} |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_QAM: |
|
mxl_status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_QAM_STATUS_GET, |
|
NULL, |
|
0, |
|
rx_buf, |
|
sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); |
|
if (!mxl_status) |
|
*snr = (u16)(qam_status->snr_db_tenths / 10); |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_OOB: |
|
default: |
|
break; |
|
} |
|
|
|
if (mxl_status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); |
|
return mxl_status; |
|
} |
|
|
|
static int mxl692_read_ber_ucb(struct dvb_frontend *fe) |
|
{ |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *atsc_errors; |
|
enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; |
|
int mxl_status = 0; |
|
u32 utmp; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
atsc_errors = (struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T *)&rx_buf; |
|
|
|
switch (demod_type) { |
|
case MXL_EAGLE_DEMOD_TYPE_ATSC: |
|
mxl_status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_ATSC_ERROR_COUNTERS_GET, |
|
NULL, |
|
0, |
|
rx_buf, |
|
sizeof(struct MXL_EAGLE_ATSC_DEMOD_ERROR_COUNTERS_T)); |
|
if (!mxl_status) { |
|
if (atsc_errors->error_packets == 0) |
|
utmp = 0; |
|
else |
|
utmp = ((atsc_errors->error_bytes / atsc_errors->error_packets) * |
|
atsc_errors->total_packets); |
|
/* ber */ |
|
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[0].uvalue += atsc_errors->error_bytes; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[0].uvalue += utmp; |
|
/* ucb */ |
|
c->block_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_error.stat[0].uvalue += atsc_errors->error_packets; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "%llu %llu\n", |
|
c->post_bit_count.stat[0].uvalue, c->block_error.stat[0].uvalue); |
|
} |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_QAM: |
|
case MXL_EAGLE_DEMOD_TYPE_OOB: |
|
default: |
|
break; |
|
} |
|
|
|
if (mxl_status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); |
|
|
|
return mxl_status; |
|
} |
|
|
|
static int mxl692_read_status(struct dvb_frontend *fe, |
|
enum fe_status *status) |
|
{ |
|
struct mxl692_dev *dev = fe->demodulator_priv; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
u8 rx_buf[MXL_EAGLE_MAX_I2C_PACKET_SIZE] = {}; |
|
struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *atsc_status; |
|
struct MXL_EAGLE_QAM_DEMOD_STATUS_T *qam_status; |
|
enum MXL_EAGLE_DEMOD_TYPE_E demod_type = dev->demod_type; |
|
int mxl_status = 0; |
|
*status = 0; |
|
|
|
dev_dbg(&dev->i2c_client->dev, "\n"); |
|
|
|
atsc_status = (struct MXL_EAGLE_ATSC_DEMOD_STATUS_T *)&rx_buf; |
|
qam_status = (struct MXL_EAGLE_QAM_DEMOD_STATUS_T *)&rx_buf; |
|
|
|
switch (demod_type) { |
|
case MXL_EAGLE_DEMOD_TYPE_ATSC: |
|
mxl_status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_ATSC_STATUS_GET, |
|
NULL, |
|
0, |
|
rx_buf, |
|
sizeof(struct MXL_EAGLE_ATSC_DEMOD_STATUS_T)); |
|
if (!mxl_status && atsc_status->atsc_lock) { |
|
*status |= FE_HAS_SIGNAL; |
|
*status |= FE_HAS_CARRIER; |
|
*status |= FE_HAS_VITERBI; |
|
*status |= FE_HAS_SYNC; |
|
*status |= FE_HAS_LOCK; |
|
|
|
c->cnr.stat[0].scale = FE_SCALE_DECIBEL; |
|
c->cnr.stat[0].svalue = atsc_status->snr_db_tenths / 10; |
|
} |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_QAM: |
|
mxl_status = mxl692_i2c_writeread(dev, |
|
MXL_EAGLE_OPCODE_QAM_STATUS_GET, |
|
NULL, |
|
0, |
|
rx_buf, |
|
sizeof(struct MXL_EAGLE_QAM_DEMOD_STATUS_T)); |
|
if (!mxl_status && qam_status->qam_locked) { |
|
*status |= FE_HAS_SIGNAL; |
|
*status |= FE_HAS_CARRIER; |
|
*status |= FE_HAS_VITERBI; |
|
*status |= FE_HAS_SYNC; |
|
*status |= FE_HAS_LOCK; |
|
|
|
c->cnr.stat[0].scale = FE_SCALE_DECIBEL; |
|
c->cnr.stat[0].svalue = qam_status->snr_db_tenths / 10; |
|
} |
|
break; |
|
case MXL_EAGLE_DEMOD_TYPE_OOB: |
|
default: |
|
break; |
|
} |
|
|
|
if ((*status & FE_HAS_LOCK) == 0) { |
|
/* No lock, reset all statistics */ |
|
c->cnr.len = 1; |
|
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
return 0; |
|
} |
|
|
|
if (mxl_status) |
|
dev_dbg(&dev->i2c_client->dev, "err %d\n", mxl_status); |
|
else |
|
mxl_status = mxl692_read_ber_ucb(fe); |
|
|
|
return mxl_status; |
|
} |
|
|
|
static const struct dvb_frontend_ops mxl692_ops = { |
|
.delsys = { SYS_ATSC }, |
|
.info = { |
|
.name = "MaxLinear MxL692 VSB tuner-demodulator", |
|
.frequency_min_hz = 54000000, |
|
.frequency_max_hz = 858000000, |
|
.frequency_stepsize_hz = 62500, |
|
.caps = FE_CAN_8VSB |
|
}, |
|
|
|
.init = mxl692_init, |
|
.sleep = mxl692_sleep, |
|
.set_frontend = mxl692_set_frontend, |
|
.get_frontend = mxl692_get_frontend, |
|
|
|
.read_status = mxl692_read_status, |
|
.read_snr = mxl692_read_snr, |
|
}; |
|
|
|
static int mxl692_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct mxl692_config *config = client->dev.platform_data; |
|
struct mxl692_dev *dev; |
|
int ret = 0; |
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
|
if (!dev) { |
|
ret = -ENOMEM; |
|
dev_dbg(&client->dev, "kzalloc() failed\n"); |
|
goto err; |
|
} |
|
|
|
memcpy(&dev->fe.ops, &mxl692_ops, sizeof(struct dvb_frontend_ops)); |
|
dev->fe.demodulator_priv = dev; |
|
dev->i2c_client = client; |
|
*config->fe = &dev->fe; |
|
mutex_init(&dev->i2c_lock); |
|
i2c_set_clientdata(client, dev); |
|
|
|
dev_info(&client->dev, "MaxLinear mxl692 successfully attached\n"); |
|
|
|
return 0; |
|
err: |
|
dev_dbg(&client->dev, "failed %d\n", ret); |
|
return -ENODEV; |
|
} |
|
|
|
static int mxl692_remove(struct i2c_client *client) |
|
{ |
|
struct mxl692_dev *dev = i2c_get_clientdata(client); |
|
|
|
dev->fe.demodulator_priv = NULL; |
|
i2c_set_clientdata(client, NULL); |
|
kfree(dev); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id mxl692_id_table[] = { |
|
{"mxl692", 0}, |
|
{} |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, mxl692_id_table); |
|
|
|
static struct i2c_driver mxl692_driver = { |
|
.driver = { |
|
.name = "mxl692", |
|
}, |
|
.probe = mxl692_probe, |
|
.remove = mxl692_remove, |
|
.id_table = mxl692_id_table, |
|
}; |
|
|
|
module_i2c_driver(mxl692_driver); |
|
|
|
MODULE_AUTHOR("Brad Love <[email protected]>"); |
|
MODULE_DESCRIPTION("MaxLinear MxL692 demodulator/tuner driver"); |
|
MODULE_FIRMWARE(MXL692_FIRMWARE); |
|
MODULE_LICENSE("GPL");
|
|
|