include/hw/char/pl011.h

   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/sysbus.h"
  19 #include "chardev/char-fe.h"
  20 #include "qom/object.h"
  21
  22 #define TYPE_PL011 "pl011"
  23 OBJECT_DECLARE_SIMPLE_TYPE(PL011State, PL011)
  24
  25 /* This shares the same struct (and cast macro) as the base pl011 device */
  26 #define TYPE_PL011_LUMINARY "pl011_luminary"
  27
  28 /* Depth of UART FIFO in bytes, when FIFO mode is enabled (else depth == 1) */
  29 #define PL011_FIFO_DEPTH 16
  30
  31 struct PL011State {
  32     SysBusDevice parent_obj;
  33
  34     MemoryRegion iomem;
  35     uint32_t readbuff;
  36     uint32_t flags;
  37     uint32_t lcr;
  38     uint32_t rsr;
  39     uint32_t cr;
  40     uint32_t dmacr;
  41     uint32_t int_enabled;
  42     uint32_t int_level;
  43     uint32_t read_fifo[PL011_FIFO_DEPTH];
  44     uint32_t ilpr;
  45     uint32_t ibrd;
  46     uint32_t fbrd;
  47     uint32_t ifl;
  48     int read_pos;
  49     int read_count;
  50     int read_trigger;
  51     CharBackend chr;
  52     qemu_irq irq[6];
  53     Clock *clk;
  54     bool migrate_clk;
  55     const unsigned char *id;
  56 };
  57
  58 DeviceState *pl011_create(hwaddr addr, qemu_irq irq, Chardev *chr);
  59
  60 #endif