e310/e320: Move E310 to MPM architecture and refactor

- Turns the E310 into an MPM device (like N3xx, E320)
- Factor out common code between E320 and E310, maximize sharing between
  the two devices
- Remove all pre-MPM E310 code that is no longer needed
- Modify MPM to remove all existing overlays before applying new ones
  (this is necessary to enable idle image mode for E310)

Co-authored-by: Virendra Kakade <virendra.kakade@ni.com>
Signed-off-by: Virendra Kakade <virendra.kakade@ni.com>

1 files changed, 0 insertions, 119 deletions

diff --git a/host/lib/usrp/e300/e300_spi.cpp b/host/lib/usrp/e300/e300_spi.cpp
deleted file mode 100644
index e0f25c22f..000000000
--- a/host/lib/usrp/e300/e300_spi.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright 2014 Ettus Research LLC
-// Copyright 2018 Ettus Research, a National Instruments Company
-//
-// SPDX-License-Identifier: GPL-3.0-or-later
-//
-
-#include <uhd/config.hpp>
-#include <uhd/exception.hpp>
-#include "e300_spi.hpp"
-
-#ifdef E300_NATIVE
-#include <boost/thread.hpp>
-#include <boost/format.hpp>
-
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <linux/types.h>
-#include <linux/spi/spidev.h>
-
-namespace uhd { namespace usrp { namespace e300 {
-
-class spidev_impl : public spi
-{
-public:
-
-    spidev_impl(const std::string &device)
-                          : _mode(SPI_CPHA),
-                            _speed(2000000),
-                            _bits(8),
-                            _delay(0)
-    {
-        int ret;
-        _fd = open(device.c_str(), O_RDWR);
-        if (_fd < 0)
-            throw uhd::runtime_error(str(boost::format("Could not open spidev device %s") % device));
-
-        ret = ioctl(_fd, SPI_IOC_WR_MODE, &_mode);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not set spidev mode");
-
-        ret = ioctl(_fd, SPI_IOC_RD_MODE, &_mode);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not get spidev mode");
-
-        ret = ioctl(_fd, SPI_IOC_WR_BITS_PER_WORD, &_bits);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not set spidev bits per word");
-
-        ret = ioctl(_fd, SPI_IOC_RD_BITS_PER_WORD, &_bits);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not get spidev bits per word");
-
-        ret = ioctl(_fd, SPI_IOC_WR_MAX_SPEED_HZ, &_speed);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not set spidev max speed");
-
-        ret = ioctl(_fd, SPI_IOC_RD_MAX_SPEED_HZ, &_speed);
-        if (ret == -1)
-            throw uhd::runtime_error("Could not get spidev max speed");
-    }
-
-    virtual ~spidev_impl()
-    {
-        close(_fd);
-    }
-
-    uint32_t transact_spi(int, const uhd::spi_config_t &,
-                                 uint32_t data, size_t num_bits,
-                                 bool)
-    {
-        int ret(0);
-        struct spi_ioc_transfer tr;
-
-        uint8_t *tx_data = reinterpret_cast<uint8_t *>(&data);
-
-
-        UHD_ASSERT_THROW(num_bits == 24);
-        uint8_t tx[] = {tx_data[2], tx_data[1], tx_data[0]};
-
-        uint8_t rx[3];
-        tr.tx_buf = (unsigned long) &tx[0];
-        tr.rx_buf = (unsigned long) &rx[0];
-        tr.len = num_bits >> 3;
-        tr.bits_per_word = _bits;
-        tr.tx_nbits = 1;
-        tr.rx_nbits = 1;
-        tr.speed_hz = _speed;
-        tr.delay_usecs = _delay;
-
-        ret = ioctl(_fd, SPI_IOC_MESSAGE(1), &tr);
-        if (ret < 1)
-            throw uhd::runtime_error("Could not send spidev message");
-
-        return rx[2];
-    }
-
-private:
-    int _fd;
-    uint8_t _mode;
-    uint32_t _speed;
-    uint8_t _bits;
-    uint16_t _delay;
-};
-
-spi::sptr spi::make(const std::string &device)
-{
-    return spi::sptr(new spidev_impl(device));
-}
-}}};
-#else
-namespace uhd { namespace usrp { namespace e300 {
-
-spi::sptr spi::make(const std::string &)
-{
-    throw uhd::assertion_error("spi::make() !E300_NATIVE");
-}
-}}};
-#endif //E300_NATIVE