/* $NetBSD: comvar.h,v 1.78.4.1 2016/06/22 08:26:05 snj 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. */ #include "rnd.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 /* 0x04 free for use */ #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 #ifdef COM_REGMAP #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 6 #define COM_REG_EFR 7 #define COM_REG_TLR 7 #define COM_REG_LCR 8 #define COM_REG_MDR1 8 #define COM_REG_MCR 9 #define COM_REG_LSR 10 #define COM_REG_MSR 11 #ifdef COM_16750 #define COM_REG_USR 31 #endif #ifdef COM_AWIN #define COM_REG_USR 31 #define COM_REG_TFL 32 #define COM_REG_RFL 33 #define COM_REG_HALT 41 #endif 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; #ifdef COM_16750 bus_size_t cr_map[32]; #else bus_size_t cr_map[16]; #endif }; #ifdef COM_16750 extern const bus_size_t com_std_map[32]; #else extern const bus_size_t com_std_map[16]; #endif #define COM_INIT_REGS(regs, tag, hdl, addr) \ do { \ regs.cr_iot = tag; \ regs.cr_ioh = hdl; \ regs.cr_iobase = addr; \ regs.cr_nports = COM_NPORTS; \ memcpy(regs.cr_map, com_std_map, sizeof (regs.cr_map)); \ } while (0) #else #define COM_REG_RXDATA com_data #define COM_REG_TXDATA com_data #define COM_REG_DLBL com_dlbl #define COM_REG_DLBH com_dlbh #define COM_REG_IER com_ier #define COM_REG_IIR com_iir #define COM_REG_FIFO com_fifo #define COM_REG_EFR com_efr #define COM_REG_LCR com_lctl #define COM_REG_MCR com_mcr #define COM_REG_LSR com_lsr #define COM_REG_MSR com_msr #define COM_REG_TCR com_msr #define COM_REG_TLR com_scratch #define COM_REG_MDR1 8 #ifdef COM_16750 #define COM_REG_USR com_usr #endif #ifdef COM_AWIN #define COM_REG_USR com_usr #define COM_REG_TFL com_tfl #define COM_REG_RFL com_rfl #define COM_REG_HALT com_halt #endif 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; }; #define COM_INIT_REGS(regs, tag, hdl, addr) \ do { \ regs.cr_iot = tag; \ regs.cr_ioh = hdl; \ regs.cr_iobase = addr; \ regs.cr_nports = COM_NPORTS; \ } while (0) #endif 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; struct callout sc_diag_callout; 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; #ifdef COM_HAYESP u_char sc_prescaler; #endif /* * 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 */ /* power management hooks */ int (*enable)(struct com_softc *); void (*disable)(struct com_softc *); int enabled; /* XXXX: vendor workaround functions */ int (*sc_vendor_workaround)(struct com_softc *); 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