Revision 4b816985 hw/etraxfs_ser.c
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* THE SOFTWARE. |
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*/ |
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#include <stdio.h> |
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#include <ctype.h> |
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#include "hw.h" |
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#include "sysbus.h" |
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#include "qemu-char.h" |
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#include "etraxfs.h" |
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#define D(x) |
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struct etrax_serial |
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{
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CPUState *env;
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SysBusDevice busdev;
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CharDriverState *chr; |
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qemu_irq *irq;
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qemu_irq irq; |
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/* This pending thing is a hack. */ |
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int pending_tx; |
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s->regs[R_INTR] &= ~(s->regs[RW_ACK_INTR]); |
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s->regs[R_MASKED_INTR] = s->regs[R_INTR] & s->regs[RW_INTR_MASK]; |
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qemu_set_irq(s->irq[0], !!s->regs[R_MASKED_INTR]);
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qemu_set_irq(s->irq, !!s->regs[R_MASKED_INTR]); |
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s->regs[RW_ACK_INTR] = 0; |
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} |
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| ... | ... | |
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} |
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void etraxfs_ser_init(CPUState *env, qemu_irq *irq, CharDriverState *chr, |
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target_phys_addr_t base) |
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static void etraxfs_ser_init(SysBusDevice *dev) |
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{
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struct etrax_serial *s; |
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struct etrax_serial *s = FROM_SYSBUS(typeof (*s), dev);
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int ser_regs; |
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s = qemu_mallocz(sizeof *s); |
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s->env = env; |
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s->irq = irq; |
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s->chr = chr; |
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/* transmitter begins ready and idle. */ |
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s->regs[RS_STAT_DIN] |= (1 << STAT_TR_RDY); |
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s->regs[RS_STAT_DIN] |= (1 << STAT_TR_IDLE); |
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qemu_chr_add_handlers(chr, serial_can_receive, serial_receive, |
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serial_event, s); |
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sysbus_init_irq(dev, &s->irq); |
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ser_regs = cpu_register_io_memory(0, ser_read, ser_write, s); |
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cpu_register_physical_memory (base, R_MAX * 4, ser_regs); |
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sysbus_init_mmio(dev, R_MAX * 4, ser_regs); |
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s->chr = qdev_init_chardev(&dev->qdev); |
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if (s->chr) |
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qemu_chr_add_handlers(s->chr, |
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serial_can_receive, serial_receive, |
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serial_event, s); |
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} |
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static void etraxfs_serial_register(void) |
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{
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sysbus_register_dev("etraxfs,serial", sizeof (struct etrax_serial),
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etraxfs_ser_init); |
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} |
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device_init(etraxfs_serial_register) |
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