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 /* Depth of UART FIFO in bytes, when FIFO mode is enabled (else depth == 1) */ 31 #define PL011_FIFO_DEPTH 16 32 33 struct PL011State { 34 SysBusDevice parent_obj; 35 36 MemoryRegion iomem; 37 uint32_t readbuff; 38 uint32_t flags; 39 uint32_t lcr; 40 uint32_t rsr; 41 uint32_t cr; 42 uint32_t dmacr; 43 uint32_t int_enabled; 44 uint32_t int_level; 45 uint32_t read_fifo[PL011_FIFO_DEPTH]; 46 uint32_t ilpr; 47 uint32_t ibrd; 48 uint32_t fbrd; 49 uint32_t ifl; 50 int read_pos; 51 int read_count; 52 int read_trigger; 53 CharBackend chr; 54 qemu_irq irq[6]; 55 Clock *clk; 56 bool migrate_clk; 57 const unsigned char *id; 58 }; 59 60 static inline DeviceState *pl011_create(hwaddr addr, 61 qemu_irq irq, 62 Chardev *chr) 63 { 64 DeviceState *dev; 65 SysBusDevice *s; 66 67 dev = qdev_new("pl011"); 68 s = SYS_BUS_DEVICE(dev); 69 qdev_prop_set_chr(dev, "chardev", chr); 70 sysbus_realize_and_unref(s, &error_fatal); 71 sysbus_mmio_map(s, 0, addr); 72 sysbus_connect_irq(s, 0, irq); 73 74 return dev; 75 } 76 77 static inline DeviceState *pl011_luminary_create(hwaddr addr, 78 qemu_irq irq, 79 Chardev *chr) 80 { 81 DeviceState *dev; 82 SysBusDevice *s; 83 84 dev = qdev_new("pl011_luminary"); 85 s = SYS_BUS_DEVICE(dev); 86 qdev_prop_set_chr(dev, "chardev", chr); 87 sysbus_realize_and_unref(s, &error_fatal); 88 sysbus_mmio_map(s, 0, addr); 89 sysbus_connect_irq(s, 0, irq); 90 91 return dev; 92 } 93 94 #endif 95