1 /* 2 * Device model for Zynq ADC controller 3 * 4 * Copyright (c) 2015 Guenter Roeck <linux@roeck-us.net> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 * 11 * You should have received a copy of the GNU General Public License along 12 * with this program; if not, see <http://www.gnu.org/licenses/>. 13 */ 14 15 #ifndef ZYNQ_XADC_H 16 #define ZYNQ_XADC_H 17 18 #include "hw/sysbus.h" 19 #include "qom/object.h" 20 21 #define ZYNQ_XADC_MMIO_SIZE 0x0020 22 #define ZYNQ_XADC_NUM_IO_REGS (ZYNQ_XADC_MMIO_SIZE / 4) 23 #define ZYNQ_XADC_NUM_ADC_REGS 128 24 #define ZYNQ_XADC_FIFO_DEPTH 15 25 26 #define TYPE_ZYNQ_XADC "xlnx-zynq-xadc" 27 OBJECT_DECLARE_SIMPLE_TYPE(ZynqXADCState, ZYNQ_XADC) 28 29 struct ZynqXADCState { 30 /*< private >*/ 31 SysBusDevice parent_obj; 32 33 /*< public >*/ 34 MemoryRegion iomem; 35 36 uint32_t regs[ZYNQ_XADC_NUM_IO_REGS]; 37 uint16_t xadc_regs[ZYNQ_XADC_NUM_ADC_REGS]; 38 uint16_t xadc_read_reg_previous; 39 uint16_t xadc_dfifo[ZYNQ_XADC_FIFO_DEPTH]; 40 uint16_t xadc_dfifo_entries; 41 42 qemu_irq irq; 43 }; 44 45 #endif /* ZYNQ_XADC_H */ 46