/*
 * This file is part of the bladeRF project
 *
 * Copyright (C) 2013 Nuand LLC
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#include <limits.h>
#include <stdint.h>
#include <string.h>
#include "host_config.h"
#include "cmd.h"
#include "conversions.h"

#define PRINTSET_DECL(x) int print_##x(struct cli_state *, int, char **); int set_##x(struct cli_state *, int, char **);
#define PRINTSET_ENTRY(x) { \
        FIELD_INIT(.print, print_##x), \
        FIELD_INIT(.set, set_##x), \
        FIELD_INIT(.name, #x) \
}

/* An entry in the printset table */
struct printset_entry {
    int (*print)(struct cli_state *s, int argc, char **argv);  /*<< Function pointer to thing that prints parameter */
    int (*set)(struct cli_state *s, int argc, char **argv);    /*<< Function pointer to setter */
    const char *name;                   /*<< String associated with parameter */
};

/* Declarations */
PRINTSET_DECL(bandwidth)
PRINTSET_DECL(frequency)
PRINTSET_DECL(gpio)
PRINTSET_DECL(loopback)
PRINTSET_DECL(lnagain)
PRINTSET_DECL(rxvga1)
PRINTSET_DECL(rxvga2)
PRINTSET_DECL(txvga1)
PRINTSET_DECL(txvga2)
PRINTSET_DECL(sampling)
PRINTSET_DECL(samplerate)
PRINTSET_DECL(trimdac)
PRINTSET_DECL(xb_spi)
PRINTSET_DECL(xb_gpio)
PRINTSET_DECL(xb_gpio_dir)

/* print/set parameter table */
struct printset_entry printset_table[] = {
    PRINTSET_ENTRY(bandwidth),
    PRINTSET_ENTRY(frequency),
    PRINTSET_ENTRY(gpio),
    PRINTSET_ENTRY(loopback),
    PRINTSET_ENTRY(lnagain),
    PRINTSET_ENTRY(rxvga1),
    PRINTSET_ENTRY(rxvga2),
    PRINTSET_ENTRY(txvga1),
    PRINTSET_ENTRY(txvga2),
    PRINTSET_ENTRY(sampling),
    PRINTSET_ENTRY(samplerate),
    PRINTSET_ENTRY(trimdac),
    PRINTSET_ENTRY(xb_spi),
    PRINTSET_ENTRY(xb_gpio),
    PRINTSET_ENTRY(xb_gpio_dir),

    /* End of table marked by entry with NULL/empty fields */
    { FIELD_INIT(.print, NULL), FIELD_INIT(.set, NULL), FIELD_INIT(.name, "") }
};

bladerf_module get_module( char *mod, bool *ok )
{
    bladerf_module rv = BLADERF_MODULE_RX;
    *ok = true;
    if( strcasecmp( mod, "rx" ) == 0 ) {
        rv = BLADERF_MODULE_RX;
    } else if( strcasecmp( mod, "tx" ) == 0 ) {
        rv = BLADERF_MODULE_TX;
    } else {
        *ok = false;
    }
    return rv;
}

static inline void invalid_module(struct cli_state *s, const char *cmd,
                                  const char *module)
{
    cli_err(s, cmd, "Invalid module (%s)", module);
}

static inline void invalid_gain(struct cli_state *s, const char *cmd,
                                const char *param, const char *gain)
{
    cli_err(s, cmd, "Invalid gain setting for %s (%s)", param, gain);
}

static int is_fpga_configured(struct cli_state *state, const char *cmd)
{
    int status;

    status = bladerf_is_fpga_configured(state->dev);
    if (status < 0) {
        cli_err(state, cmd, "Failed to determine if the FPGA is "
                            "configured. Is the FX3 programmed?");

        state->last_lib_error = status;
        status = CLI_RET_LIBBLADERF;
    }

    return status;
}

int print_bandwidth(struct cli_state *state, int argc, char **argv)
{
    /* Usage: print bandwidth [rx|tx]*/
    int rv = CLI_RET_OK, status;
    bladerf_module module = BLADERF_MODULE_RX ;
    unsigned int bw ;

    if( argc == 3 ) {
        bool ok;
        module = get_module( argv[2], &ok );
        if( !ok ) {
            invalid_module(state, argv[0], argv[2]);
            return CLI_RET_INVPARAM;
        }
    } else if (argc != 2) {
        /* Assume both RX & TX if not specified */
        return CLI_RET_NARGS;
    }

    printf( "\n" ) ;

    if( argc == 2 || module == BLADERF_MODULE_RX ) {
        status =  bladerf_get_bandwidth( state->dev, BLADERF_MODULE_RX, &bw );
        if (status < 0) {
            state->last_lib_error = status;
            rv = CLI_RET_LIBBLADERF;
        } else {
            printf( "  RX Bandwidth: %9uHz\n", bw );
        }
    }

    if( argc == 2 || module == BLADERF_MODULE_TX ) {
        status = bladerf_get_bandwidth( state->dev, BLADERF_MODULE_TX, &bw );
        if (status < 0) {
            state->last_lib_error = status;
            rv = CLI_RET_LIBBLADERF;
        } else {
            printf( "  TX Bandwidth: %9uHz\n", bw );
        }
    }

    printf( "\n" );

    return rv;
}

int set_bandwidth(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set bandwidth [rx|tx] <bandwidth in Hz> */
    int rv = CLI_RET_OK;
    int status;
    bladerf_module module = BLADERF_MODULE_RX;
    unsigned int bw = 28000000, actual;

    /* Check for extended help */
    if( argc == 2 ) {
        printf( "\n" );
        printf( "Usage: set bandwidth [module] <bandwidth>\n" );
        printf( "\n" );
        printf( "    module         Optional argument to set single module bandwidth\n" );
        printf( "    bandwidth      Bandwidth in Hz - will be rounded up to closest bandwidth\n" );
        printf( "\n" );
    }

    /* Check for optional module */
    else if( argc == 4 ) {
        /* Parse module */
        bool ok;
        module = get_module( argv[2], &ok );
        if( !ok ) {
            invalid_module(state, argv[0], argv[2]);
            rv = CLI_RET_INVPARAM;
        }

        /* Parse bandwidth */
        bw = str2uint_suffix( argv[3],
                              BLADERF_BANDWIDTH_MIN, BLADERF_BANDWIDTH_MAX,
                              freq_suffixes, NUM_FREQ_SUFFIXES, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid bandwidth (%s)", argv[3]);
            rv = CLI_RET_INVPARAM;
        }
    }

    /* No module, just bandwidth */
    else if( argc == 3 ) {
        bool ok;
        bw = str2uint_suffix( argv[2],
                              BLADERF_BANDWIDTH_MIN, BLADERF_BANDWIDTH_MAX,
                              freq_suffixes, NUM_FREQ_SUFFIXES, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid bandwidth (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        }
    }

    /* Weird number of arguments */
    else {
        rv = CLI_RET_NARGS;
    }

    /* Problem parsing arguments? */
    if( argc > 2 && rv == CLI_RET_OK ) {

        printf( "\n" );

        /* Lack of option, so set both or RX only */
        if( argc == 3 || module == BLADERF_MODULE_RX ) {
            status = bladerf_set_bandwidth( state->dev, BLADERF_MODULE_RX,
                                            bw, &actual );

            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            } else {
                printf( "  Set RX bandwidth - req:%9uHz actual:%9uHz\n",
                        bw, actual );
            }
        }

        /* Lack of option, so set both or TX only */
        if( argc == 3 || module == BLADERF_MODULE_TX ) {
            status = bladerf_set_bandwidth( state->dev, BLADERF_MODULE_TX,
                                            bw, &actual );

            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            } else {
                printf( "  Set TX bandwidth - req:%9uHz actual:%9uHz\n",
                        bw, actual );
            }
        }

        printf( "\n" );
    }


    return rv;
}

int print_frequency(struct cli_state *state, int argc, char **argv)
{
    /* Usage: print frequency [<rx|tx>] */
    int rv = CLI_RET_OK;
    int status;
    unsigned int freq;
    bladerf_module module = BLADERF_MODULE_RX;
    if( argc == 3 ) {
        /* Parse module */
        bool ok;
        module = get_module( argv[2], &ok );
        if( !ok ) {
            invalid_module(state, argv[0], argv[2]);
            rv = CLI_RET_INVPARAM;
        }
    } else if( argc != 2 ) {
        /* Assume both RX & TX if not specified */
        rv = CLI_RET_NARGS;
    }

    if( rv == CLI_RET_OK ) {
        if( argc == 2 || module == BLADERF_MODULE_RX ) {
            status = bladerf_get_frequency( state->dev, BLADERF_MODULE_RX, &freq );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            } else {
                printf( "\n" );
                printf( "  RX Frequency: %10uHz\n", freq );
                if( argc == 3 ) {
                    printf( "\n" );
                }
            }
        }

        if( argc == 2 || module == BLADERF_MODULE_TX ) {
            status = bladerf_get_frequency( state->dev, BLADERF_MODULE_TX, &freq );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            } else {
                if( argc == 3 ) {
                    printf( "\n" );
                }
                printf( "  TX Frequency: %10uHz\n", freq );
                printf( "\n" );
            }
        }
    }

    return rv;
}

int set_frequency(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set frequency [<rx|tx>] <frequency in Hz> */
    int rv = CLI_RET_OK;
    int status;
    unsigned int freq;
    bladerf_module module = BLADERF_MODULE_RX;

    if( argc == 4 ) {
        /* Parse module */
        bool ok;
        module = get_module( argv[2], &ok );
        if( !ok ) {
            invalid_module(state, argv[0], argv[2]);
            rv = CLI_RET_INVPARAM;
        }
    } else if( argc != 3 ) {
        /* Assume both RX & TX if not specified */
        rv = CLI_RET_NARGS;
    }

    if( argc > 2 && rv == CLI_RET_OK ) {
        bool ok;
        /* Parse out frequency */
        freq = str2uint_suffix( argv[argc-1],
                                0, BLADERF_FREQUENCY_MAX,
                                freq_suffixes, NUM_FREQ_SUFFIXES, &ok );

        if( !ok ) {
            cli_err(state, argv[0], "Invalid frequency (%s)", argv[argc - 1]);
            rv = CLI_RET_INVPARAM;
        } else {

            printf( "\n" );

            /* Change RX frequency */
            if( argc == 3 || module == BLADERF_MODULE_RX ) {
                int status = bladerf_set_frequency( state->dev,
                                                    BLADERF_MODULE_RX, freq );

                if (status < 0) {
                    state->last_lib_error = status;
                    rv = CLI_RET_LIBBLADERF;
                } else {
                    status = bladerf_get_frequency( state->dev,
                                                    BLADERF_MODULE_RX, &freq );
                    if (status < 0) {
                        state->last_lib_error = status;
                        rv = CLI_RET_LIBBLADERF;
                    } else {
                        printf( "  Set RX frequency: %10uHz\n", freq );
                    }
                }
            }

            /* Change TX frequency */
            if( argc == 3 || module == BLADERF_MODULE_TX ) {
                status = bladerf_set_frequency( state->dev,
                                                BLADERF_MODULE_TX, freq );

                if (status < 0) {
                    state->last_lib_error = status;
                    rv = CLI_RET_LIBBLADERF;
                } else {
                    status = bladerf_get_frequency( state->dev,
                                                    BLADERF_MODULE_TX, &freq );
                    if (status < 0) {
                        state->last_lib_error = status;
                        rv = CLI_RET_LIBBLADERF;
                    } else {
                        printf( "  Set TX frequency: %10uHz\n", freq );
                    }
                }
            }

            printf( "\n" );
        }
    }

    return rv;
}

int print_gpio(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, status;
    unsigned int val;

    status = bladerf_config_gpio_read( state->dev, &val );

    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "  GPIO: 0x%8.8x\n", val );
        printf( "\n" );
        printf( "    %-20s%-10s\n", "LMS Enable:", val&0x01 ? "Enabled" : "Reset" ); // Active low
        printf( "    %-20s%-10s\n", "LMS RX Enable:", val&0x02 ? "Enabled" : "Disabled" );
        printf( "    %-20s%-10s\n", "LMS TX Enable:", val&0x04 ? "Enabled" : "Disabled" );
        printf( "    %-20s", "TX Band:" );
        if( ((val>>3)&3) == 2 ) {
            printf( "Low Band (300M - 1.5GHz)\n" );
        } else if( ((val>>3)&3) == 1 ) {
            printf( "High Band (1.5GHz - 3.8GHz)\n" );
        } else {
            printf( "Invalid Band Selection!\n" );
        }
        printf( "    %-20s", "RX Band:" );
        if( ((val>>5)&3) == 2 ) {
            printf( "Low Band (300M - 1.5GHz)\n" );
        } else if( ((val>>5)&3) == 1 ) {
            printf( "High Band (1.5GHz - 3.8GHz)\n" );
        } else {
            printf( "Invalid Band Selection!\n" );
        }
        printf( "    %-20s", "RX Source:" );
        switch((val&0x300)>>8) {
            case 0: printf( "LMS6002D\n" ); break;
            case 1: printf( "Internal 12-bit counter\n" ); break;
            case 2: printf( "Internal 32-bit counter\n" ); break;
            case 3: printf( "Whitened Entropy\n" ); break;
            default : printf( "????\n" ); break;
        }
        printf( "\n" );
    }

    return rv;
}

int set_gpio(struct cli_state *state, int argc, char **argv)
{
    /* set gpio <value> */
    int rv = CLI_RET_OK;
    uint32_t val;
    bool ok;

    if( argc == 3 ) {
        val = str2uint( argv[2], 0, UINT_MAX, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid gpio value (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            bladerf_config_gpio_write( state->dev,val );
        }
    } else {
        rv = CLI_RET_NARGS;
    }
    return rv;
}

int print_xb_gpio(struct cli_state *state, int argc, char **argv) {
    int rv = CLI_RET_OK, status;
    unsigned int val;

    status = bladerf_expansion_gpio_read( state->dev, &val );

    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "Expansion GPIO: 0x%8.8x\n", val );
        printf( "\n" );
    }
    return rv;
}

int set_xb_gpio(struct cli_state *state, int argc, char **argv)
{
    /* set gpio <value> */
    int rv = CLI_RET_OK;
    uint32_t val;
    bool ok;

    if( argc == 3 ) {
        val = str2uint( argv[2], 0, UINT_MAX, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid xb gpio value (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            bladerf_expansion_gpio_write ( state->dev,val );
        }
    } else {
        rv = CLI_RET_NARGS;
    }
    return rv;
}

int print_xb_gpio_dir(struct cli_state *state, int argc, char **argv) {
    int rv = CLI_RET_OK, status;
    unsigned int val;

    status = bladerf_expansion_gpio_dir_read( state->dev, &val );

    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "Expansion GPIO direction (1=output): 0x%8.8x\n", val );
        printf( "\n" );
    }
    return rv;
}

int set_xb_gpio_dir(struct cli_state *state, int argc, char **argv)
{
    /* set gpio <value> */
    int rv = CLI_RET_OK;
    uint32_t val;
    bool ok;

    if( argc == 3 ) {
        val = str2uint( argv[2], 0, UINT_MAX, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid xb gpio dir value (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            bladerf_expansion_gpio_dir_write ( state->dev,val );
        }
    } else {
        rv = CLI_RET_NARGS;
    }
    return rv;
}

int print_lnagain(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, status;
    bladerf_lna_gain gain;

    status = bladerf_get_lna_gain( state->dev, &gain );
    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        switch(gain) {
            case BLADERF_LNA_GAIN_UNKNOWN:
                    printf("LNA Gain: Unknown\n");
                    break;

            case BLADERF_LNA_GAIN_MAX:
                    printf("LNA Gain: 6 dB\n");
                    break;

            case BLADERF_LNA_GAIN_MID:
                    printf("LNA Gain: 3 dB\n");
                    break;

            case BLADERF_LNA_GAIN_BYPASS:
                    printf("LNA Gain: 0 dB\n");
                    break;
        }
        printf( "\n" ) ;
    }

    return rv;
}

int set_lnagain(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK;
    int status;

    if( argc != 3 ) {
        rv = CLI_RET_NARGS;
    } else {
        bladerf_lna_gain gain = BLADERF_LNA_GAIN_UNKNOWN;
        if( strcasecmp( argv[2], "6" ) == 0 ) {
            gain = BLADERF_LNA_GAIN_MAX;
        } else if( strcasecmp( argv[2], "3" ) == 0 ) {
            gain = BLADERF_LNA_GAIN_MID;
        } else if( strcasecmp( argv[2], "0" ) == 0 ) {
            gain = BLADERF_LNA_GAIN_BYPASS;
        } else {
            invalid_gain(state, argv[0], argv[1], argv[2]);
        }

        if (gain != BLADERF_LNA_GAIN_UNKNOWN) {
            status = bladerf_set_lna_gain( state->dev, gain );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        } else {
            rv = CLI_RET_INVPARAM;
        }
    }

    return rv;
}

int print_loopback(struct cli_state *state, int argc, char **argv)
{
    int status;
    bladerf_loopback loopback;

    status = bladerf_get_loopback(state->dev, &loopback);
    if (status != 0) {
        state->last_lib_error = status;
        return CLI_RET_LIBBLADERF;
    }

    switch (loopback) {
        case BLADERF_LB_BB_TXLPF_RXVGA2:
            printf("Loopback mode: bb_txlpf_rxvga2\n");
            break;

        case BLADERF_LB_BB_TXLPF_RXLPF:
            printf("Loopback mode: bb_txlpf_rxlpf\n");
            break;

        case BLADERF_LB_BB_TXVGA1_RXVGA2:
            printf("Loopback mode: bb_txvga1_rxvga2\n");
            break;

        case BLADERF_LB_BB_TXVGA1_RXLPF:
            printf("Loopback mode: bb_txvga1_rxlpf\n");
            break;

        case BLADERF_LB_RF_LNA1:
            printf("Loopback mode: rf_lna1\n");
            break;

        case BLADERF_LB_RF_LNA2:
            printf("Loopback mode: rf_lna2\n");
            break;

        case BLADERF_LB_RF_LNA3:
            printf("Loopback mode: rf_lna3\n");
            break;

        case BLADERF_LB_FIRMWARE:
            printf("Loopback mode: firmware\n");
            break;

        case BLADERF_LB_NONE:
            printf("Loopback mode: none\n");
            break;

        default:
            cli_err(state, argv[0], "Read back unexpected loopback mode: %d\n",
                    (int)loopback);
            return CLI_RET_INVPARAM;
    }

    return 0;
}

int set_loopback(struct cli_state *state, int argc, char **argv)
{
    int status;
    bladerf_loopback loopback;

    if (argc == 2) {
        printf("\n");
        printf("Usage: %s %s <mode>, where <mode> is one of the following:\n",
               argv[0], argv[1]);
        printf("\n");
        printf("  bb_txlpf_rxvga2   Baseband loopback: TXLPF output --> RXVGA2 input\n");
        printf("  bb_txlpf_rxlpf    Baseband loopback: TXLPF output --> RXLPF input\n");
        printf("  bb_txvga1_rxvga2  Baseband loopback: TXVGA1 output --> RXVGA2 input.\n");
        printf("  bb_txvga1_rxlpf   Baseband loopback: TXVGA1 output --> RXLPF input\n");
        printf("  rf_lna1           RF loopback: TXMIX --> RXMIX via LNA1 path.\n");
        printf("  rf_lna2           RF loopback: TXMIX --> RXMIX via LNA2 path.\n");
        printf("  rf_lna3           RF loopback: TXMIX --> RXMIX via LNA3 path.\n");
        printf("  firmware          Firmware-based sample loopback.\n");
        printf("  none              Loopback disabled - Normal operation.\n");
        printf("\n");

        return CLI_RET_INVPARAM;

    } else if (argc != 3) {
        return CLI_RET_NARGS;
    }

    if (!strcasecmp(argv[2], "bb_txlpf_rxvga2")) {
        loopback = BLADERF_LB_BB_TXLPF_RXVGA2;
    } else if (!strcasecmp(argv[2], "bb_txlpf_rxlpf")) {
        loopback = BLADERF_LB_BB_TXLPF_RXLPF;
    } else if (!strcasecmp(argv[2], "bb_txvga1_rxvga2")) {
        loopback = BLADERF_LB_BB_TXVGA1_RXVGA2;
    } else if (!strcasecmp(argv[2], "bb_txvga1_rxlpf")) {
        loopback = BLADERF_LB_BB_TXVGA1_RXLPF;
    } else if (!strcasecmp(argv[2], "rf_lna1")) {
        loopback = BLADERF_LB_RF_LNA1;
    } else if (!strcasecmp(argv[2], "rf_lna2")) {
        loopback = BLADERF_LB_RF_LNA2;
    } else if (!strcasecmp(argv[2], "rf_lna3")) {
        loopback = BLADERF_LB_RF_LNA3;
    } else if (!strcasecmp(argv[2], "firmware")) {
        loopback = BLADERF_LB_FIRMWARE;
    } else if (!strcasecmp(argv[2], "none")) {
        loopback = BLADERF_LB_NONE;
    } else {
        cli_err(state, argv[0],
                "Invalid loopback mode provided: %s\n", argv[2]);
        return CLI_RET_INVPARAM;
    }

    status = bladerf_set_loopback(state->dev, loopback);
    if (status != 0) {
        state->last_lib_error = status;
        return CLI_RET_LIBBLADERF;
    } else {
        return CLI_RET_OK;
    }
}

int print_rxvga1(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, gain, status;

    status = bladerf_get_rxvga1( state->dev, &gain );
    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "  RXVGA1 Gain: %3ddB\n", gain );
        printf( "\n" );
    }

    return rv;
}

int set_rxvga1(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, gain, status;
    if( argc != 3 ) {
        rv = CLI_RET_NARGS;
    } else {
        bool ok;
        gain = str2int( argv[2], BLADERF_RXVGA1_GAIN_MIN,
                        BLADERF_RXVGA1_GAIN_MAX, &ok );
        if( !ok ) {
            invalid_gain(state, argv[0], argv[1], argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            status = bladerf_set_rxvga1( state->dev, gain );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    }
    return rv;
}

int print_rxvga2(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, gain, status;

    status = bladerf_get_rxvga2( state->dev, &gain );
    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "  RXVGA2 Gain: %3ddB\n", gain );
        printf( "\n" );
    }

    return rv;
}

int set_rxvga2(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, gain, status;

    if( argc != 3 ) {
        rv = CLI_RET_NARGS;
    } else {
        bool ok;
        gain = str2int( argv[2], BLADERF_RXVGA2_GAIN_MIN,
                        BLADERF_RXVGA2_GAIN_MAX, &ok );

        if( !ok ) {
            invalid_gain(state, argv[0], argv[1], argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            status = bladerf_set_rxvga2( state->dev, gain );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    }
    return rv;
}

int print_samplerate(struct cli_state *state, int argc, char **argv)
{
    int status;
    struct bladerf_rational_rate rate;
    bladerf_module module;
    bool ok;

    if (argc == 3) {
        module = get_module(argv[2], &ok);
        if (!ok) {
            invalid_module(state, argv[0], argv[2]);
            status = CLI_RET_INVPARAM;
        } else {
            status = bladerf_get_rational_sample_rate(state->dev, module, &rate);
            printf("  %s sample rate: %"PRIu64" %"PRIu64"/%"PRIu64"\n",
                    module == BLADERF_MODULE_RX ? "RX" : "TX", rate.integer, rate.num, rate.den);
        }
    } else if (argc == 2) {
        struct bladerf_rational_rate tx_rate;
        status = bladerf_get_rational_sample_rate(state->dev, BLADERF_MODULE_RX, &rate);

        if (!status) {
            status = bladerf_get_rational_sample_rate(state->dev,
                                                BLADERF_MODULE_TX, &tx_rate);

            if (!status) {
                printf("  RX sample rate: %"PRIu64" %"PRIu64"/%"PRIu64"\n", rate.integer, rate.num, rate.den);
                printf("  TX sample rate: %"PRIu64" %"PRIu64"/%"PRIu64"\n", tx_rate.integer, tx_rate.num, tx_rate.den);
            } else {
                state->last_lib_error = status;
                status = CLI_RET_LIBBLADERF;
            }
        } else {
            state->last_lib_error = status;
            status = CLI_RET_LIBBLADERF;
        }

    } else {
        return CLI_RET_NARGS;
    }

    return status;
}

int set_samplerate(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set samplerate [rx|tx] [integer [numerator denominator]]*/
    int rv = CLI_RET_OK;
    bladerf_module module = BLADERF_MODULE_RX;

    if( argc == 4 || argc == 6 ) {
        /* Parse module */
        bool ok;
        module = get_module( argv[2], &ok );
        if( !ok ) {
            invalid_module(state, argv[0], argv[2]);
            rv = CLI_RET_INVPARAM;
        }
    } else if( argc != 3 && argc != 5 ) {
        printf( "Usage:\n" );
        printf( "\n" );
        printf( "  set samplerate [rx|tx] [integer [numerator denominator]]\n" );
        printf( "\n" );
        printf( "Setting the sample rate first addresses an optional RX or TX module.\n" );
        printf( "Omitting the module will set both of the modules.\n" );
        printf( "\n" );
        printf( "In the case of a whole integer sample rate, only the integer portion\n" );
        printf( "is required in the command.  In the case of a fractional rate, the\n" );
        printf( "numerator follows the integer portion followed by the denominator.\n" );
        printf( "\n" );
        printf( "Examples:\n" );
        printf( "\n" );
        printf( "  Set the sample rate for both RX and TX to 4MHz\n" );
        printf( "\n" );
        printf( "    set samplerate 4M\n" );
        printf( "\n" );
        printf( "  Set the sample rate for both RX and TX to GSM 270833 1/3Hz.\n" );
        printf( "\n" );
        printf( "    set samplerate 270833 1 3\n" );
        printf( "\n" );
        printf( "  Set the sample rate for RX to 40MHz\n" );
        printf( "\n" );
        printf( "    set samplerate rx 40M\n" );
        printf( "\n" );
        rv = CLI_RET_NARGS;
    }

    if( argc > 2 && rv == CLI_RET_OK ) {
        bool ok;
        uint8_t idx = 0;
        struct bladerf_rational_rate rate, actual;

        /* Initialize the samplerate */
        rate.integer = 0;
        rate.num = 0;
        rate.den = 1;

        /* Figure out the integer index */
        if( argc == 3 || argc == 5 ) {
            idx = 2;
        } else {
            idx = 3;
        }

        rate.integer = str2uint_suffix( argv[idx],
                                        BLADERF_SAMPLERATE_MIN,
                                        UINT_MAX,
                                        freq_suffixes, NUM_FREQ_SUFFIXES, &ok );

        /* Integer portion didn't make it */
        if( !ok ) {
            cli_err(state, argv[0], "Invalid sample rate (%s)", argv[idx]);
            rv = CLI_RET_INVPARAM;
        }

        /* Take in num/den if they are present */
        if( rv == CLI_RET_OK && (argc == 5 || argc == 6) ) {
            idx++;
            rate.num = str2uint_suffix( argv[idx], 0, 999999999,
                freq_suffixes, NUM_FREQ_SUFFIXES, &ok );
            if( !ok ) {
                cli_err(state, argv[0], "Invalid sample rate (%s %s/%s)",
                    argv[idx-1], argv[idx], argv[idx+1] );
                rv = CLI_RET_INVPARAM;
            }

            if( ok ) {
                idx++;
                rate.den = str2uint_suffix( argv[idx], 1, 1000000000,
                    freq_suffixes, NUM_FREQ_SUFFIXES, &ok );
                if( !ok ) {
                    cli_err(state, argv[0], "Invalid sample rate (%s %s/%s)",
                        argv[idx-2], argv[idx-1], argv[idx] ) ;
                    rv = CLI_RET_INVPARAM;
                }
            }
        }
        if( rv == CLI_RET_OK ) {
            int status;
            bladerf_dev_speed usb_speed = bladerf_device_speed(state->dev);

            /* Discontinuities have been reported for 2.0 on Intel controllers
             * above 6MHz. */
            if (usb_speed != BLADERF_DEVICE_SPEED_SUPER && rate.integer > 6000000) {
                printf("\n  Warning: The provided sample rate may "
                       "result in timeouts with the current\n"
                       "           %s connection. "
                       "A SuperSpeed connection or a lower sample\n"
                       "           rate are recommended.\n",
                       devspeed2str(usb_speed));
            }

            printf( "\n" );

            if( argc == 3 || argc == 5 || module == BLADERF_MODULE_RX ) {
                status = bladerf_set_rational_sample_rate( state->dev,
                                                           BLADERF_MODULE_RX,
                                                           &rate, &actual );

                if (status < 0) {
                    state->last_lib_error = status;
                    rv = CLI_RET_LIBBLADERF;
                } else {
                    printf( "  Setting RX sample rate - req: %9"PRIu64" %"PRIu64"/%"PRIu64"Hz, "
                            "actual: %9"PRIu64" %"PRIu64"/%"PRIu64"Hz\n", rate.integer, rate.num, rate.den, actual.integer, actual.num, actual.den );
                }
            }

            if( argc == 3 || argc == 5 || module == BLADERF_MODULE_TX ) {
                status = bladerf_set_rational_sample_rate( state->dev,
                                                           BLADERF_MODULE_TX,
                                                           &rate, &actual );
                if (status < 0) {
                    state->last_lib_error = status;
                    rv = CLI_RET_LIBBLADERF;
                } else {
                    printf( "  Setting TX sample rate - req: %9"PRIu64" %"PRIu64"/%"PRIu64"Hz, "
                            "actual: %9"PRIu64" %"PRIu64"/%"PRIu64"Hz\n", rate.integer, rate.num, rate.den, actual.integer, actual.num, actual.den );
                }
            }
            printf( "\n" );

        }
    }

    return rv;
}

int set_sampling(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set sampling [internal|external] */
    int rv = CLI_RET_OK;
    int status = 0;
    if( argc != 3 ) {
        rv = CLI_RET_NARGS ;
    } else {
        if( strcasecmp( "internal", argv[2] ) == 0 ) {
            status = bladerf_set_sampling( state->dev, BLADERF_SAMPLING_INTERNAL );
            if (status) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        } else if( strcasecmp( "external", argv[2] ) == 0 ) {
            status = bladerf_set_sampling( state->dev, BLADERF_SAMPLING_EXTERNAL );
            if (status) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        } else {
            cli_err(state, argv[0], "Invalid sampling mode (%s)", argv[2] );
            rv = CLI_RET_INVPARAM;
        }
    }
    return rv;
}

int print_sampling( struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK, status = 0;
    bladerf_sampling mode;
    if( argc != 2 ) {
        rv = CLI_RET_NARGS;
    } else {
        /* Read the ADC input mux */
        status = bladerf_get_sampling( state->dev, &mode);
        if (status) {
            state->last_lib_error = status;
            rv = CLI_RET_LIBBLADERF;
        } else {
            switch (mode) {
                case BLADERF_SAMPLING_EXTERNAL:
                    printf("Sampling: External\n");
                    break;

                case BLADERF_SAMPLING_INTERNAL:
                    printf("Sampling: Internal\n");
                    break;

                default:
                    printf("Sampling: Unknown\n");
            }
        }
    }

    return rv;
}

int print_trimdac(struct cli_state *state, int argc, char **argv)
{
    /* TODO cache values in firmware */
    printf("VCTCXO readback is not currently supported.\n");
    return CLI_RET_OK;
}

int set_trimdac(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK;
    unsigned int val;

    if( argc != 3 ) {
        rv = CLI_RET_NARGS;
    } else {
        bool ok;
        val = str2uint( argv[2], 0, 65535, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid VCTCXO DAC value (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            int status = bladerf_dac_write( state->dev, val );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    }
    return rv;
}

int print_xb_spi(struct cli_state *state, int argc, char **argv)
{
    /* All of the SPI devices so far are write-only */
    return CLI_RET_OK;
}

int set_xb_spi(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK;
    unsigned int val;

    if( argc != 3) {
        rv = CLI_RET_NARGS;
    } else {
        bool ok;
        val = str2uint( argv[2], 0, -1, &ok );
        if( !ok ) {
            cli_err(state, argv[0], "Invalid XB SPI value (%s)", argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            int status = bladerf_xb_spi_write( state->dev, val );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    }
    return rv;
}

int print_txvga1(struct cli_state *state, int argc, char **argv)
{
    /* Usage: print txvga1 */
    int rv = CLI_RET_OK, gain, status;

    status = bladerf_get_txvga1( state->dev, &gain );
    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "  TXVGA1 Gain: %ddB\n", gain ) ;
        printf( "\n" );
    }

    return rv;
}

int set_txvga1(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set txvga1 <gain> */
    int rv = CLI_RET_OK, gain;

    if( argc == 3 ) {
        bool ok ;
        gain = str2int( argv[2], BLADERF_TXVGA1_GAIN_MIN,
                        BLADERF_TXVGA1_GAIN_MAX, &ok );

        if( !ok ) {
            invalid_gain(state, argv[0], argv[1], argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            int status = bladerf_set_txvga1( state->dev, gain );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    } else {
        rv = CLI_RET_NARGS;
    }

    return rv;
}

int print_txvga2(struct cli_state *state, int argc, char **argv)
{
    /* Usage: print txvga2 */
    int rv = CLI_RET_OK;
    int status, gain;

    status = bladerf_get_txvga2( state->dev, &gain );
    if (status < 0) {
        state->last_lib_error = status;
        rv = CLI_RET_LIBBLADERF;
    } else {
        printf( "\n" );
        printf( "  TXVGA2 Gain: %ddB\n", gain );
        printf( "\n" );
    }
    return rv;
}

int set_txvga2(struct cli_state *state, int argc, char **argv)
{
    /* Usage: set txvga2 <gain> */
    int rv = CLI_RET_OK;

    if( argc != 3 ) {
        rv = CLI_RET_NARGS;
    } else {
        bool ok;
        int gain;
        gain = str2int( argv[2], BLADERF_TXVGA2_GAIN_MIN,
                        BLADERF_TXVGA2_GAIN_MAX, &ok );
        if( !ok ) {
            invalid_gain(state, argv[0], argv[1], argv[2]);
            rv = CLI_RET_INVPARAM;
        } else {
            int status = bladerf_set_txvga2( state->dev, gain );
            if (status < 0) {
                state->last_lib_error = status;
                rv = CLI_RET_LIBBLADERF;
            }
        }
    }
    return rv;
}

struct printset_entry *get_printset_entry( char *name)
{
    int i;
    struct printset_entry *entry = NULL;
    for( i = 0; entry == NULL && printset_table[i].print != NULL; ++i ) {
        if( strcasecmp( name, printset_table[i].name ) == 0 ) {
            entry = &(printset_table[i]);
        }
    }
    return entry;
}

/* Set command */
int cmd_set(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK;
    int fpga_configured;

    if (!cli_device_is_opened(state)) {
        return  CLI_RET_NODEV;
    }

    fpga_configured = is_fpga_configured(state, argv[0]);

    if ( fpga_configured < 0) {
        rv = fpga_configured;
    } else if ( !fpga_configured ) {
        rv = CLI_RET_NOFPGA;
    } else if( argc > 1 ) {
        struct printset_entry *entry = NULL;

        entry = get_printset_entry( argv[1] );

        if( entry ) {
            /* Call the parameter setting function */
            rv = entry->set(state, argc, argv);
        } else {
            /* Incorrect parameter to print */
            cli_err(state, argv[0], "Invalid parameter (%s)", argv[1]);
            rv = CLI_RET_INVPARAM;
        }
    } else {
        rv = CLI_RET_NARGS;
    }
    return rv;
}

/* Print command */
int cmd_print(struct cli_state *state, int argc, char **argv)
{
    int rv = CLI_RET_OK;
    struct printset_entry *entry = NULL;
    int fpga_configured;

    if (!cli_device_is_opened(state)) {
        return  CLI_RET_NODEV;
    }

    fpga_configured = is_fpga_configured( state, argv[0] );

    if ( fpga_configured < 0 ) {
        rv = fpga_configured;
    } else if( !fpga_configured ) {
        rv = CLI_RET_NOFPGA;
    } else if( argc > 1 ) {

        entry = get_printset_entry( argv[1] );

        if( entry ) {
            /* Call the parameter printing function */
            rv = entry->print(state, argc, argv);
        } else {
            /* Incorrect parameter to print */
            cli_err(state, argv[0], "Invalid parameter (%s)", argv[1]);
            rv = CLI_RET_INVPARAM;
        }
    } else {
        rv = CLI_RET_NARGS;
    }
    return rv;
}

