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//
// Copyright 2010 Ettus Research 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 3 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, see <http://www.gnu.org/licenses/>.
//
#ifndef INCLUDED_USRP2_REGS_HPP
#define INCLUDED_USRP2_REGS_HPP
////////////////////////////////////////////////////
// Settings Bus, Slave #7, Not Byte Addressable!
//
// Output-only from processor point-of-view.
// 1KB of address space (== 256 32-bit write-only regs)
#define MISC_OUTPUT_BASE 0xD400
//#define TX_PROTOCOL_ENGINE_BASE 0xD480
//#define RX_PROTOCOL_ENGINE_BASE 0xD4C0
//#define BUFFER_POOL_CTRL_BASE 0xD500
//#define LAST_SETTING_REG 0xD7FC // last valid setting register
#define SR_MISC 0
#define SR_TX_PROT_ENG 32
#define SR_RX_PROT_ENG 48
#define SR_BUFFER_POOL_CTRL 64
#define SR_UDP_SM 96
#define SR_TX_DSP 208
#define SR_TX_CTRL 224
#define SR_RX_DSP 160
#define SR_RX_CTRL 176
#define SR_TIME64 192
#define SR_SIMTIMER 198
#define SR_LAST 255
#define _SR_ADDR(sr) ((MISC_OUTPUT_BASE) + (4*(sr)))
/////////////////////////////////////////////////
// SPI Slave Constants
////////////////////////////////////////////////
// Masks for controlling different peripherals
#define SPI_SS_AD9510 1
#define SPI_SS_AD9777 2
#define SPI_SS_RX_DAC 4
#define SPI_SS_RX_ADC 8
#define SPI_SS_RX_DB 16
#define SPI_SS_TX_DAC 32
#define SPI_SS_TX_ADC 64
#define SPI_SS_TX_DB 128
/////////////////////////////////////////////////
// Misc Control
////////////////////////////////////////////////
#define U2_REG_MISC_CTRL_CLOCK _SR_ADDR(0)
#define U2_REG_MISC_CTRL_SERDES _SR_ADDR(1)
#define U2_REG_MISC_CTRL_ADC _SR_ADDR(2)
#define U2_REG_MISC_CTRL_LEDS _SR_ADDR(3)
#define U2_REG_MISC_CTRL_PHY _SR_ADDR(4) // LSB is reset line to eth phy
#define U2_REG_MISC_CTRL_DBG_MUX _SR_ADDR(5)
#define U2_REG_MISC_CTRL_RAM_PAGE _SR_ADDR(6) // FIXME should go somewhere else...
#define U2_REG_MISC_CTRL_FLUSH_ICACHE _SR_ADDR(7) // Flush the icache
#define U2_REG_MISC_CTRL_LED_SRC _SR_ADDR(8) // HW or SW control for LEDs
#define U2_FLAG_MISC_CTRL_SERDES_ENABLE 8
#define U2_FLAG_MISC_CTRL_SERDES_PRBSEN 4
#define U2_FLAG_MISC_CTRL_SERDES_LOOPEN 2
#define U2_FLAG_MISC_CTRL_SERDES_RXEN 1
#define U2_FLAG_MISC_CTRL_ADC_ON 0x0F
#define U2_FLAG_MISC_CTRL_ADC_OFF 0x00
/////////////////////////////////////////////////
// VITA49 64 bit time (write only)
////////////////////////////////////////////////
/*!
* \brief Time 64 flags
*
* <pre>
*
* 3 2 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +-----------------------------------------------------------+-+-+
* | |S|P|
* +-----------------------------------------------------------+-+-+
*
* P - PPS edge selection (0=negedge, 1=posedge, default=0)
* S - Source (0=sma, 1=mimo, 0=default)
*
* </pre>
*/
#define U2_REG_TIME64_SECS _SR_ADDR(SR_TIME64 + 0) // value to set absolute secs to on next PPS
#define U2_REG_TIME64_TICKS _SR_ADDR(SR_TIME64 + 1) // value to set absolute ticks to on next PPS
#define U2_REG_TIME64_FLAGS _SR_ADDR(SR_TIME64 + 2) // flags - see chart above
#define U2_REG_TIME64_IMM _SR_ADDR(SR_TIME64 + 3) // set immediate (0=latch on next pps, 1=latch immediate, default=0)
#define U2_REG_TIME64_TPS _SR_ADDR(SR_TIME64 + 4) // the ticks per second rollover count
#define U2_REG_TIME64_SECS_RB (0xCC00 + 4*10)
#define U2_REG_TIME64_TICKS_RB (0xCC00 + 4*11)
//pps flags (see above)
#define U2_FLAG_TIME64_PPS_NEGEDGE (0 << 0)
#define U2_FLAG_TIME64_PPS_POSEDGE (1 << 0)
#define U2_FLAG_TIME64_PPS_SMA (0 << 1)
#define U2_FLAG_TIME64_PPS_MIMO (1 << 1)
#define U2_FLAG_TIME64_LATCH_NOW 1
#define U2_FLAG_TIME64_LATCH_NEXT_PPS 0
/////////////////////////////////////////////////
// DSP TX Regs
////////////////////////////////////////////////
#define U2_REG_DSP_TX_FREQ _SR_ADDR(SR_TX_DSP + 0)
#define U2_REG_DSP_TX_SCALE_IQ _SR_ADDR(SR_TX_DSP + 1) // {scale_i,scale_q}
#define U2_REG_DSP_TX_INTERP_RATE _SR_ADDR(SR_TX_DSP + 2)
/*!
* \brief output mux configuration.
*
* <pre>
* 3 2 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +-------------------------------+-------+-------+-------+-------+
* | | DAC1 | DAC0 |
* +-------------------------------+-------+-------+-------+-------+
*
* There are N DUCs (1 now) with complex inputs and outputs.
* There are two DACs.
*
* Each 4-bit DACx field specifies the source for the DAC
* Each subfield is coded like this:
*
* 3 2 1 0
* +-------+
* | N |
* +-------+
*
* N specifies which DUC output is connected to this DAC.
*
* N which interp output
* --- -------------------
* 0 DUC 0 I
* 1 DUC 0 Q
* 2 DUC 1 I
* 3 DUC 1 Q
* F All Zeros
*
* The default value is 0x10
* </pre>
*/
#define U2_REG_DSP_TX_MUX _SR_ADDR(SR_TX_DSP + 4)
/////////////////////////////////////////////////
// DSP RX Regs
////////////////////////////////////////////////
#define U2_REG_DSP_RX_FREQ _SR_ADDR(SR_RX_DSP + 0)
#define U2_REG_DSP_RX_SCALE_IQ _SR_ADDR(SR_RX_DSP + 1) // {scale_i,scale_q}
#define U2_REG_DSP_RX_DECIM_RATE _SR_ADDR(SR_RX_DSP + 2)
#define U2_REG_DSP_RX_DCOFFSET_I _SR_ADDR(SR_RX_DSP + 3) // Bit 31 high sets fixed offset mode, using lower 14 bits,
// otherwise it is automatic
#define U2_REG_DSP_RX_DCOFFSET_Q _SR_ADDR(SR_RX_DSP + 4) // Bit 31 high sets fixed offset mode, using lower 14 bits
/*!
* \brief input mux configuration.
*
* This determines which ADC (or constant zero) is connected to
* each DDC input. There are N DDCs (1 now). Each has two inputs.
*
* <pre>
* Mux value:
*
* 3 2 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +-------+-------+-------+-------+-------+-------+-------+-------+
* | |Q0 |I0 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
*
* Each 2-bit I field is either 00 (A/D A), 01 (A/D B) or 1X (const zero)
* Each 2-bit Q field is either 00 (A/D A), 01 (A/D B) or 1X (const zero)
*
* The default value is 0x4
* </pre>
*/
#define U2_REG_DSP_RX_MUX _SR_ADDR(SR_RX_DSP + 5) // called adc_mux in dsp_core_rx.v
////////////////////////////////////////////////
// GPIO, Slave 4
////////////////////////////////////////////////
//
// These go to the daughterboard i/o pins
//
#define U2_REG_GPIO_BASE 0xC800
#define U2_REG_GPIO_IO U2_REG_GPIO_BASE + 0 // 32 bits, gpio io pins (tx high 16 bits, rx low 16 bits)
#define U2_REG_GPIO_DDR U2_REG_GPIO_BASE + 4 // 32 bits, gpio ddr, 1 means output (tx high 16 bits, rx low 16 bits)
#define U2_REG_GPIO_TX_SEL U2_REG_GPIO_BASE + 8 // 16 2-bit fields select which source goes to TX DB
#define U2_REG_GPIO_RX_SEL U2_REG_GPIO_BASE + 12 // 16 2-bit fields select which source goes to RX DB
// each 2-bit sel field is layed out this way
#define U2_FLAG_GPIO_SEL_GPIO 0 // if pin is an output, set by GPIO register
#define U2_FLAG_GPIO_SEL_ATR 1 // if pin is an output, set by ATR logic
#define U2_FLAG_GPIO_SEL_DEBUG_0 2 // if pin is an output, debug lines from FPGA fabric
#define U2_FLAG_GPIO_SEL_DEBUG_1 3 // if pin is an output, debug lines from FPGA fabric
///////////////////////////////////////////////////
// ATR Controller, Slave 11
////////////////////////////////////////////////
#define U2_REG_ATR_BASE 0xE400
#define U2_REG_ATR_IDLE_TXSIDE U2_REG_ATR_BASE + 0
#define U2_REG_ATR_IDLE_RXSIDE U2_REG_ATR_BASE + 2
#define U2_REG_ATR_INTX_TXSIDE U2_REG_ATR_BASE + 4
#define U2_REG_ATR_INTX_RXSIDE U2_REG_ATR_BASE + 6
#define U2_REG_ATR_INRX_TXSIDE U2_REG_ATR_BASE + 8
#define U2_REG_ATR_INRX_RXSIDE U2_REG_ATR_BASE + 10
#define U2_REG_ATR_FULL_TXSIDE U2_REG_ATR_BASE + 12
#define U2_REG_ATR_FULL_RXSIDE U2_REG_ATR_BASE + 14
///////////////////////////////////////////////////
// RX CTRL regs
///////////////////////////////////////////////////
// The following 3 are logically a single command register.
// They are clocked into the underlying fifo when time_ticks is written.
#define U2_REG_RX_CTRL_STREAM_CMD _SR_ADDR(SR_RX_CTRL + 0) // {now, chain, num_samples(30)
#define U2_REG_RX_CTRL_TIME_SECS _SR_ADDR(SR_RX_CTRL + 1)
#define U2_REG_RX_CTRL_TIME_TICKS _SR_ADDR(SR_RX_CTRL + 2)
#define U2_REG_RX_CTRL_CLEAR_OVERRUN _SR_ADDR(SR_RX_CTRL + 3) // write anything to clear overrun
#define U2_REG_RX_CTRL_VRT_HEADER _SR_ADDR(SR_RX_CTRL + 4) // word 0 of packet. FPGA fills in packet counter
#define U2_REG_RX_CTRL_VRT_STREAM_ID _SR_ADDR(SR_RX_CTRL + 5) // word 1 of packet.
#define U2_REG_RX_CTRL_VRT_TRAILER _SR_ADDR(SR_RX_CTRL + 6)
#define U2_REG_RX_CTRL_NSAMPS_PER_PKT _SR_ADDR(SR_RX_CTRL + 7)
#define U2_REG_RX_CTRL_NCHANNELS _SR_ADDR(SR_RX_CTRL + 8) // 1 in basic case, up to 4 for vector sources
///////////////////////////////////////////////////
// TX CTRL regs
///////////////////////////////////////////////////
#define U2_REG_TX_CTRL_NUM_CHAN _SR_ADDR(SR_TX_CTRL + 0)
#define U2_REG_TX_CTRL_CLEAR_STATE _SR_ADDR(SR_TX_CTRL + 1)
#define U2_REG_TX_CTRL_REPORT_SID _SR_ADDR(SR_TX_CTRL + 2)
#endif /* INCLUDED_USRP2_REGS_HPP */
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