xref: /openbmc/qemu/include/hw/char/pl011.h (revision a6e03739)
1 /*
2  * This program is free software; you can redistribute it and/or modify it
3  * under the terms and conditions of the GNU General Public License,
4  * version 2 or later, as published by the Free Software Foundation.
5  *
6  * This program is distributed in the hope it will be useful, but WITHOUT
7  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
9  * more details.
10  *
11  * You should have received a copy of the GNU General Public License along with
12  * this program.  If not, see <http://www.gnu.org/licenses/>.
13  */
14 
15 #ifndef HW_PL011_H
16 #define HW_PL011_H
17 
18 #include "hw/qdev-properties.h"
19 #include "hw/sysbus.h"
20 #include "chardev/char-fe.h"
21 #include "qapi/error.h"
22 #include "qom/object.h"
23 
24 #define TYPE_PL011 "pl011"
25 OBJECT_DECLARE_SIMPLE_TYPE(PL011State, PL011)
26 
27 /* This shares the same struct (and cast macro) as the base pl011 device */
28 #define TYPE_PL011_LUMINARY "pl011_luminary"
29 
30 struct PL011State {
31     SysBusDevice parent_obj;
32 
33     MemoryRegion iomem;
34     uint32_t readbuff;
35     uint32_t flags;
36     uint32_t lcr;
37     uint32_t rsr;
38     uint32_t cr;
39     uint32_t dmacr;
40     uint32_t int_enabled;
41     uint32_t int_level;
42     uint32_t read_fifo[16];
43     uint32_t ilpr;
44     uint32_t ibrd;
45     uint32_t fbrd;
46     uint32_t ifl;
47     int read_pos;
48     int read_count;
49     int read_trigger;
50     CharBackend chr;
51     qemu_irq irq[6];
52     Clock *clk;
53     const unsigned char *id;
54 };
55 
56 static inline DeviceState *pl011_create(hwaddr addr,
57                                         qemu_irq irq,
58                                         Chardev *chr)
59 {
60     DeviceState *dev;
61     SysBusDevice *s;
62 
63     dev = qdev_new("pl011");
64     s = SYS_BUS_DEVICE(dev);
65     qdev_prop_set_chr(dev, "chardev", chr);
66     sysbus_realize_and_unref(s, &error_fatal);
67     sysbus_mmio_map(s, 0, addr);
68     sysbus_connect_irq(s, 0, irq);
69 
70     return dev;
71 }
72 
73 static inline DeviceState *pl011_luminary_create(hwaddr addr,
74                                                  qemu_irq irq,
75                                                  Chardev *chr)
76 {
77     DeviceState *dev;
78     SysBusDevice *s;
79 
80     dev = qdev_new("pl011_luminary");
81     s = SYS_BUS_DEVICE(dev);
82     qdev_prop_set_chr(dev, "chardev", chr);
83     sysbus_realize_and_unref(s, &error_fatal);
84     sysbus_mmio_map(s, 0, addr);
85     sysbus_connect_irq(s, 0, irq);
86 
87     return dev;
88 }
89 
90 #endif
91