diff options
Diffstat (limited to 'sys/i386/isa/sio.c')
| -rw-r--r-- | sys/i386/isa/sio.c | 166 |
1 files changed, 164 insertions, 2 deletions
diff --git a/sys/i386/isa/sio.c b/sys/i386/isa/sio.c index 99f913f..70eb097 100644 --- a/sys/i386/isa/sio.c +++ b/sys/i386/isa/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.50 1994/08/23 07:52:23 paul Exp $ + * $Id: sio.c,v 1.51 1994/08/25 10:15:28 bde Exp $ */ #include "sio.h" @@ -278,6 +278,10 @@ static void comstart __P((struct tty *tp)); static timeout_t comwakeup; static int tiocm_xxx2mcr __P((int tiocm_xxx)); +#ifdef DSI_SOFT_MODEM +static int LoadSoftModem __P((int unit,int base_io, u_long size, u_char *ptr)); +#endif /* DSI_SOFT_MODEM */ + /* table and macro for fast conversion from a unit number to its com struct */ static struct com_s *p_com_addr[NSIO]; #define com_addr(unit) (p_com_addr[unit]) @@ -592,6 +596,14 @@ sioattach(isdp) /* attempt to determine UART type */ printf("sio%d: type", unit); + +#ifdef DSI_SOFT_MODEM + if((inb(iobase+7) ^ inb(iobase+7)) & 0x80) { + printf(" Digicom Systems, Inc. SoftModem"); + goto determined_type; + } +#endif /* DSI_SOFT_MODEM */ + #ifdef COM_MULTIPORT if (!COM_ISMULTIPORT(isdp)) #endif @@ -931,6 +943,7 @@ siowrite(dev, uio, flag) mynor = minor(dev); if (mynor & CONTROL_MASK) return (ENODEV); + unit = MINOR_TO_UNIT(mynor); tp = com_addr(unit)->tp; /* @@ -1156,6 +1169,7 @@ sioioctl(dev, cmd, data, flag, p) mynor = minor(dev); com = com_addr(MINOR_TO_UNIT(mynor)); + iobase = com->iobase; if (mynor & CONTROL_MASK) { struct termios *ct; @@ -1185,6 +1199,34 @@ sioioctl(dev, cmd, data, flag, p) case TIOCGWINSZ: bzero(data, sizeof(struct winsize)); return (0); +#ifdef DSI_SOFT_MODEM + /* + * Download micro-code to Digicom modem. + */ + case TIOCDSIMICROCODE: + { + u_long l; + u_char *p,*pi; + + pi = (u_char*)(*(caddr_t*)data); + error = copyin(pi,&l,sizeof l); + if(error) + {return error;}; + pi += sizeof l; + + p = malloc(l,M_TEMP,M_NOWAIT); + if(!p) + {return ENOBUFS;} + error = copyin(pi,p,l); + if(error) + {free(p,M_TEMP); return error;}; + if(error = LoadSoftModem( + MINOR_TO_UNIT(mynor),iobase,l,p)) + {free(p,M_TEMP); return error;} + free(p,M_TEMP); + return(0); + } +#endif /* DSI_SOFT_MODEM */ default: return (ENOTTY); } @@ -1218,7 +1260,6 @@ sioioctl(dev, cmd, data, flag, p) error = ttioctl(tp, cmd, data, flag); if (error >= 0) return (error); - iobase = com->iobase; s = spltty(); switch (cmd) { case TIOCSBRK: @@ -1954,4 +1995,125 @@ siocnputc(dev, c) splx(s); } +#ifdef DSI_SOFT_MODEM +/* + * The magic code to download microcode to a "Connection 14.4+Fax" + * modem from Digicom Systems Inc. Very magic. + */ + +#define DSI_ERROR(str) { ptr = str; goto error; } +static int +LoadSoftModem(int unit, int base_io, u_long size, u_char *ptr) +{ + int int_c,int_k; + int data_0188, data_0187; + + /* + * First see if it is a DSI SoftModem + */ + if(!((inb(base_io+7) ^ inb(base_io+7) & 0x80))) + return ENODEV; + + data_0188 = inb(base_io+4); + data_0187 = inb(base_io+3); + outb(base_io+3,0x80); + outb(base_io+4,0x0C); + outb(base_io+0,0x31); + outb(base_io+1,0x8C); + outb(base_io+7,0x10); + outb(base_io+7,0x19); + + if(0x18 != (inb(base_io+7) & 0x1A)) + DSI_ERROR("dsp bus not granted"); + + if(0x01 != (inb(base_io+7) & 0x01)) { + outb(base_io+7,0x18); + outb(base_io+7,0x19); + if(0x01 != (inb(base_io+7) & 0x01)) + DSI_ERROR("program mem not granted"); + } + + int_c = 0; + + while(1) { + if(int_c >= 7 || size <= 0x1800) + break; + + for(int_k = 0 ; int_k < 0x800; int_k++) { + outb(base_io+0,*ptr++); + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + + size -= 0x1800; + int_c++; + } + + if(size > 0x1800) { + outb(base_io+7,0x18); + outb(base_io+7,0x19); + if(0x00 != (inb(base_io+7) & 0x01)) + DSI_ERROR("program data not granted"); + + for(int_k = 0 ; int_k < 0x800; int_k++) { + outb(base_io+1,*ptr++); + outb(base_io+2,0); + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + + size -= 0x1800; + + while(size > 0x1800) { + for(int_k = 0 ; int_k < 0xC00; int_k++) { + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + size -= 0x1800; + } + + if(size < 0x1800) { + for(int_k=0;int_k<size/2;int_k++) { + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + } + + } else if (size > 0) { + if(int_c == 7) { + outb(base_io+7,0x18); + outb(base_io+7,0x19); + if(0x00 != (inb(base_io+7) & 0x01)) + DSI_ERROR("program data not granted"); + for(int_k = 0 ; int_k < size/3; int_k++) { + outb(base_io+1,*ptr++); + outb(base_io+2,0); + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + } else { + for(int_k = 0 ; int_k < size/3; int_k++) { + outb(base_io+0,*ptr++); + outb(base_io+1,*ptr++); + outb(base_io+2,*ptr++); + } + } + } + outb(base_io+7,0x11); + outb(base_io+7,3); + + outb(base_io+4,data_0188 & 0xfb); + + outb(base_io+3,data_0187); + + return 0; +error: + printf("sio%d: DSI SoftModem microcode load failed: <%s>\n",ptr); + outb(base_io+7,0x00); \ + outb(base_io+3,data_0187); \ + outb(base_io+4,data_0188); \ + return EIO; +} +#endif /* DSI_SOFT_MODEM */ + #endif /* NSIO > 0 */ |
