block/export: Add query-block-exports
[qemu.git] / include / hw / ssi / pl022.h
1 /*
2 * ARM PrimeCell PL022 Synchronous Serial Port
3 *
4 * Copyright (c) 2007 CodeSourcery.
5 * Written by Paul Brook
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 or
9 * (at your option) any later version.
10 */
11
12 /* This is a model of the Arm PrimeCell PL022 synchronous serial port.
13 * The PL022 TRM is:
14 * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0194h/DDI0194H_ssp_pl022_trm.pdf
15 *
16 * QEMU interface:
17 * + sysbus IRQ: SSPINTR combined interrupt line
18 * + sysbus MMIO region 0: MemoryRegion for the device's registers
19 */
20
21 #ifndef HW_SSI_PL022_H
22 #define HW_SSI_PL022_H
23
24 #include "hw/sysbus.h"
25 #include "qom/object.h"
26
27 #define TYPE_PL022 "pl022"
28 OBJECT_DECLARE_SIMPLE_TYPE(PL022State, PL022)
29
30 struct PL022State {
31 SysBusDevice parent_obj;
32
33 MemoryRegion iomem;
34 uint32_t cr0;
35 uint32_t cr1;
36 uint32_t bitmask;
37 uint32_t sr;
38 uint32_t cpsr;
39 uint32_t is;
40 uint32_t im;
41 /* The FIFO head points to the next empty entry. */
42 int tx_fifo_head;
43 int rx_fifo_head;
44 int tx_fifo_len;
45 int rx_fifo_len;
46 uint16_t tx_fifo[8];
47 uint16_t rx_fifo[8];
48 qemu_irq irq;
49 SSIBus *ssi;
50 };
51
52 #endif