/* $NetBSD: comvar.h,v 1.98 2022/10/08 07:27:03 riastradh Exp $ */ /* * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SYS_DEV_IC_COMVAR_H_ #define _SYS_DEV_IC_COMVAR_H_ #include "opt_multiprocessor.h" #include "opt_lockdebug.h" #include "opt_com.h" #include "opt_kgdb.h" #ifdef RND_COM #include #endif #include #include #include #include #include /* for COM_NPORTS */ struct com_regs; int comcnattach(bus_space_tag_t, bus_addr_t, int, int, int, tcflag_t); int comcnattach1(struct com_regs *, int, int, int, tcflag_t); #ifdef KGDB int com_kgdb_attach(bus_space_tag_t, bus_addr_t, int, int, int, tcflag_t); int com_kgdb_attach1(struct com_regs *, int, int, int, tcflag_t); #endif int com_is_console(bus_space_tag_t, bus_addr_t, bus_space_handle_t *); /* Hardware flag masks */ #define COM_HW_NOIEN 0x01 #define COM_HW_FIFO 0x02 #define COM_HW_BROKEN_ETXRDY 0x04 #define COM_HW_FLOW 0x08 #define COM_HW_DEV_OK 0x20 #define COM_HW_CONSOLE 0x40 #define COM_HW_KGDB 0x80 #define COM_HW_TXFIFO_DISABLE 0x100 #define COM_HW_NO_TXPRELOAD 0x200 #define COM_HW_AFE 0x400 /* Buffer size for character buffer */ #ifndef COM_RING_SIZE #define COM_RING_SIZE 2048 #endif #define COM_REG_RXDATA 0 #define COM_REG_TXDATA 1 #define COM_REG_DLBL 2 #define COM_REG_DLBH 3 #define COM_REG_IER 4 #define COM_REG_IIR 5 #define COM_REG_FIFO 6 #define COM_REG_TCR 7 #define COM_REG_EFR 8 #define COM_REG_TLR 9 #define COM_REG_LCR 10 #define COM_REG_MCR 11 #define COM_REG_LSR 12 #define COM_REG_MSR 13 #define COM_REG_MDR1 14 /* TI OMAP */ #define COM_REG_USR 15 /* 16750/DW APB */ #define COM_REG_TFL 16 /* DW APB */ #define COM_REG_RFL 17 /* DW APB */ #define COM_REG_HALT 18 /* DW APB */ #define COM_REGMAP_NENTRIES 19 struct com_regs { bus_space_tag_t cr_iot; bus_space_handle_t cr_ioh; bus_addr_t cr_iobase; bus_size_t cr_nports; bus_size_t cr_map[COM_REGMAP_NENTRIES]; uint8_t (*cr_read)(struct com_regs *, u_int); void (*cr_write)(struct com_regs *, u_int, uint8_t); void (*cr_write_multi)(struct com_regs *, u_int, const uint8_t *, bus_size_t); }; void com_init_regs(struct com_regs *, bus_space_tag_t, bus_space_handle_t, bus_addr_t); void com_init_regs_stride(struct com_regs *, bus_space_tag_t, bus_space_handle_t, bus_addr_t, u_int); void com_init_regs_stride_width(struct com_regs *, bus_space_tag_t, bus_space_handle_t, bus_addr_t, u_int, u_int); struct comcons_info { struct com_regs regs; int rate; int frequency; int type; tcflag_t cflag; }; struct com_softc { device_t sc_dev; void *sc_si; struct tty *sc_tty; callout_t sc_diag_callout; callout_t sc_poll_callout; struct timeval sc_hup_pending; int sc_frequency; struct com_regs sc_regs; bus_space_handle_t sc_hayespioh; u_int sc_overflows, sc_floods, sc_errors; int sc_hwflags, sc_swflags; u_int sc_fifolen; u_int sc_r_hiwat, sc_r_lowat; u_char *volatile sc_rbget, *volatile sc_rbput; volatile u_int sc_rbavail; u_char *sc_rbuf, *sc_ebuf; u_char *sc_tba; u_int sc_tbc, sc_heldtbc; volatile u_char sc_rx_flags, #define RX_TTY_BLOCKED 0x01 #define RX_TTY_OVERFLOWED 0x02 #define RX_IBUF_BLOCKED 0x04 #define RX_IBUF_OVERFLOWED 0x08 #define RX_ANY_BLOCK 0x0f sc_tx_busy, sc_tx_done, sc_tx_stopped, sc_st_check, sc_rx_ready; volatile u_char sc_heldchange; volatile u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr, sc_mcr_active, sc_lcr, sc_ier, sc_fifo, sc_dlbl, sc_dlbh, sc_efr; u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd; u_char sc_prescaler; /* for COM_TYPE_HAYESP */ /* * There are a great many almost-ns16550-compatible UARTs out * there, which have minor differences. The type field here * lets us distinguish between them. */ int sc_type; #define COM_TYPE_NORMAL 0 /* normal 16x50 */ #define COM_TYPE_HAYESP 1 /* Hayes ESP modem */ #define COM_TYPE_PXA2x0 2 /* Intel PXA2x0 processor built-in */ #define COM_TYPE_AU1x00 3 /* AMD/Alchemy Au1x000 proc. built-in */ #define COM_TYPE_OMAP 4 /* TI OMAP processor built-in */ #define COM_TYPE_16550_NOERS 5 /* like a 16550, no ERS */ #define COM_TYPE_INGENIC 6 /* JZ4780 built-in */ #define COM_TYPE_TEGRA 7 /* NVIDIA Tegra built-in */ #define COM_TYPE_BCMAUXUART 8 /* BCM2835 AUX UART */ #define COM_TYPE_16650 9 #define COM_TYPE_16750 10 #define COM_TYPE_DW_APB 11 /* DesignWare APB UART */ int sc_poll_ticks; /* power management hooks */ int (*enable)(struct com_softc *); void (*disable)(struct com_softc *); int enabled; struct pps_state sc_pps_state; /* pps state */ #ifdef RND_COM krndsource_t rnd_source; #endif kmutex_t sc_lock; }; int comprobe1(bus_space_tag_t, bus_space_handle_t); int comintr(void *); void com_attach_subr(struct com_softc *); int com_probe_subr(struct com_regs *); int com_detach(device_t, int); bool com_resume(device_t, const pmf_qual_t *); bool com_cleanup(device_t, int); bool com_suspend(device_t, const pmf_qual_t *); #ifndef IPL_SERIAL #define IPL_SERIAL IPL_TTY #define splserial() spltty() #endif #endif /* _SYS_DEV_IC_COMVAR_H_ */