/*====================================================================== Device driver for Databook TCIC-2 PCMCIA controller tcic.c 1.117 2000/10/02 20:27:49 The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. The initial developer of the original code is David A. Hinds . Portions created by David A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights Reserved. Alternatively, the contents of this file may be used under the terms of the GNU Public License version 2 (the "GPL"), in which case the provisions of the GPL are applicable instead of the above. If you wish to allow the use of your version of this file only under the terms of the GPL and not to allow others to use your version of this file under the MPL, indicate your decision by deleting the provisions above and replace them with the notice and other provisions required by the GPL. If you do not delete the provisions above, a recipient may use your version of this file under either the MPL or the GPL. ======================================================================*/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tcic.h" #ifdef PCMCIA_DEBUG static int pc_debug = PCMCIA_DEBUG; MODULE_PARM(pc_debug, "i"); static const char *version = "tcic.c 1.117 2000/10/02 20:27:49 (David Hinds)"; #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) #else #define DEBUG(n, args...) #endif MODULE_AUTHOR("David Hinds "); MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver"); /*====================================================================*/ /* Parameters that can be set with 'insmod' */ /* The base port address of the TCIC-2 chip */ static int tcic_base = TCIC_BASE; /* Specify a socket number to ignore */ static int ignore = -1; /* Probe for safe interrupts? */ static int do_scan = 1; /* Bit map of interrupts to choose from */ static u_int irq_mask = 0xffff; static int irq_list[16] = { -1 }; /* The card status change interrupt -- 0 means autoselect */ static int cs_irq = 0; /* Poll status interval -- 0 means default to interrupt */ static int poll_interval = 0; /* Delay for card status double-checking */ static int poll_quick = HZ/20; /* CCLK external clock time, in nanoseconds. 70 ns = 14.31818 MHz */ static int cycle_time = 70; MODULE_PARM(tcic_base, "i"); MODULE_PARM(ignore, "i"); MODULE_PARM(do_scan, "i"); MODULE_PARM(irq_mask, "i"); MODULE_PARM(irq_list, "1-16i"); MODULE_PARM(cs_irq, "i"); MODULE_PARM(poll_interval, "i"); MODULE_PARM(poll_quick, "i"); MODULE_PARM(cycle_time, "i"); /*====================================================================*/ static void tcic_interrupt(int irq, void *dev, struct pt_regs *regs); static void tcic_timer(u_long data); static int tcic_service(u_int sock, u_int cmd, void *arg); typedef struct socket_info_t { u_short psock; void (*handler)(void *info, u_int events); void *info; u_char last_sstat; u_char id; } socket_info_t; static int sockets; static socket_info_t socket_table[2]; static struct timer_list poll_timer = { function: tcic_timer }; static socket_cap_t tcic_cap = { /* only 16-bit cards, memory windows must be size-aligned */ SS_CAP_PCCARD | SS_CAP_MEM_ALIGN, 0x4cf8, /* irq 14, 11, 10, 7, 6, 5, 4, 3 */ 0x1000, /* 4K minimum window size */ 0, 0 /* No PCI or CardBus support */ }; /*====================================================================*/ /* Trick when selecting interrupts: the TCIC sktirq pin is supposed to map to irq 11, but is coded as 0 or 1 in the irq registers. */ #define TCIC_IRQ(x) ((x) ? (((x) == 11) ? 1 : (x)) : 15) #ifdef PCMCIA_DEBUG_X static u_char tcic_getb(u_char reg) { u_char val = inb(tcic_base+reg); printk(KERN_DEBUG "tcic_getb(%#x) = %#x\n", tcic_base+reg, val); return val; } static u_short tcic_getw(u_char reg) { u_short val = inw(tcic_base+reg); printk(KERN_DEBUG "tcic_getw(%#x) = %#x\n", tcic_base+reg, val); return val; } static void tcic_setb(u_char reg, u_char data) { printk(KERN_DEBUG "tcic_setb(%#x, %#x)\n", tcic_base+reg, data); outb(data, tcic_base+reg); } static void tcic_setw(u_char reg, u_short data) { printk(KERN_DEBUG "tcic_setw(%#x, %#x)\n", tcic_base+reg, data); outw(data, tcic_base+reg); } #else #define tcic_getb(reg) inb(tcic_base+reg) #define tcic_getw(reg) inw(tcic_base+reg) #define tcic_setb(reg, data) outb(data, tcic_base+reg) #define tcic_setw(reg, data) outw(data, tcic_base+reg) #endif static void tcic_setl(u_char reg, u_int data) { #ifdef PCMCIA_DEBUG_X printk(KERN_DEBUG "tcic_setl(%#x, %#lx)\n", tcic_base+reg, data); #endif outw(data & 0xffff, tcic_base+reg); outw(data >> 16, tcic_base+reg+2); } static u_char tcic_aux_getb(u_short reg) { u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; tcic_setb(TCIC_MODE, mode); return tcic_getb(TCIC_AUX); } static void tcic_aux_setb(u_short reg, u_char data) { u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; tcic_setb(TCIC_MODE, mode); tcic_setb(TCIC_AUX, data); } static u_short tcic_aux_getw(u_short reg) { u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; tcic_setb(TCIC_MODE, mode); return tcic_getw(TCIC_AUX); } static void tcic_aux_setw(u_short reg, u_short data) { u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; tcic_setb(TCIC_MODE, mode); tcic_setw(TCIC_AUX, data); } /*====================================================================*/ /* Time conversion functions */ static int to_cycles(int ns) { if (ns < 14) return 0; else return 2*(ns-14)/cycle_time; } static int to_ns(int cycles) { return (cycles*cycle_time)/2 + 14; } /*====================================================================*/ static volatile u_int irq_hits; static void __init irq_count(int irq, void *dev, struct pt_regs *regs) { irq_hits++; } static u_int __init try_irq(int irq) { u_short cfg; irq_hits = 0; if (request_irq(irq, irq_count, 0, "irq scan", irq_count) != 0) return -1; mdelay(10); if (irq_hits) { free_irq(irq, irq_count); return -1; } /* Generate one interrupt */ cfg = TCIC_SYSCFG_AUTOBUSY | 0x0a00; tcic_aux_setw(TCIC_AUX_SYSCFG, cfg | TCIC_IRQ(irq)); tcic_setb(TCIC_IENA, TCIC_IENA_ERR | TCIC_IENA_CFG_HIGH); tcic_setb(TCIC_ICSR, TCIC_ICSR_ERR | TCIC_ICSR_JAM); mdelay(1); free_irq(irq, irq_count); /* Turn off interrupts */ tcic_setb(TCIC_IENA, TCIC_IENA_CFG_OFF); while (tcic_getb(TCIC_ICSR)) tcic_setb(TCIC_ICSR, TCIC_ICSR_JAM); tcic_aux_setw(TCIC_AUX_SYSCFG, cfg); return (irq_hits != 1); } static u_int __init irq_scan(u_int mask0) { u_int mask1; int i; #ifdef CONFIG_PCI mask0 &= ~pci_irq_mask; #endif mask1 = 0; if (do_scan) { for (i = 0; i < 16; i++) if ((mask0 & (1 << i)) && (try_irq(i) == 0)) mask1 |= (1 << i); for (i = 0; i < 16; i++) if ((mask1 & (1 << i)) && (try_irq(i) != 0)) { mask1 ^= (1 << i); } } if (mask1) { printk("scanned"); } else { /* Fallback: just find interrupts that aren't in use */ for (i = 0; i < 16; i++) if ((mask0 & (1 << i)) && (request_irq(i, irq_count, 0, "x", irq_count) == 0)) { mask1 |= (1 << i); free_irq(i, irq_count); } printk("default"); } printk(") = "); for (i = 0; i < 16; i++) if (mask1 & (1<> TCIC_ILOCKTEST_ID_SH; tcic_aux_setw(TCIC_AUX_TEST, 0); return id; } /*====================================================================*/ static int __init init_tcic(void) { int i, sock; u_int mask, scan; servinfo_t serv; DEBUG(0, "%s\n", version); CardServices(GetCardServicesInfo, &serv); if (serv.Revision != CS_RELEASE_CODE) { printk(KERN_NOTICE "tcic: Card Services release " "does not match!\n"); return -1; } printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: "); sock = 0; if (check_region(tcic_base, 16) == 0) { tcic_setw(TCIC_ADDR, 0); if (tcic_getw(TCIC_ADDR) == 0) { tcic_setw(TCIC_ADDR, 0xc3a5); if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2; } if (sock == 0) { /* See if resetting the controller does any good */ tcic_setb(TCIC_SCTRL, TCIC_SCTRL_RESET); tcic_setb(TCIC_SCTRL, 0); tcic_setw(TCIC_ADDR, 0); if (tcic_getw(TCIC_ADDR) == 0) { tcic_setw(TCIC_ADDR, 0xc3a5); if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2; } } } else printk("could not allocate ports, "); if (sock == 0) { printk("not found.\n"); return -ENODEV; } request_region(tcic_base, 16, "tcic-2"); sockets = 0; for (i = 0; i < sock; i++) { if ((i == ignore) || is_active(i)) continue; socket_table[sockets].psock = i; socket_table[sockets].handler = NULL; socket_table[sockets].info = NULL; socket_table[sockets].id = get_tcic_id(); sockets++; } switch (socket_table[0].id) { case TCIC_ID_DB86082: printk("DB86082"); break; case TCIC_ID_DB86082A: printk("DB86082A"); break; case TCIC_ID_DB86084: printk("DB86084"); break; case TCIC_ID_DB86084A: printk("DB86084A"); break; case TCIC_ID_DB86072: printk("DB86072"); break; case TCIC_ID_DB86184: printk("DB86184"); break; case TCIC_ID_DB86082B: printk("DB86082B"); break; default: printk("Unknown ID 0x%02x", socket_table[0].id); } /* Build interrupt mask */ printk(", %d sockets\n" KERN_INFO " irq list (", sockets); if (irq_list[0] == -1) mask = irq_mask; else for (i = mask = 0; i < 16; i++) mask |= (1< 0; i--) if ((cs_mask & (1 << i)) && (request_irq(i, tcic_interrupt, 0, "tcic", tcic_interrupt) == 0)) break; cs_irq = i; if (cs_irq == 0) poll_interval = HZ; } if (tcic_cap.irq_mask & (1 << 11)) printk("sktirq is irq 11, "); if (cs_irq != 0) printk("status change on irq %d\n", cs_irq); else printk("polled status, interval = %d ms\n", poll_interval * 1000 / HZ); for (i = 0; i < sockets; i++) { tcic_setw(TCIC_ADDR+2, socket_table[i].psock << TCIC_SS_SHFT); socket_table[i].last_sstat = tcic_getb(TCIC_SSTAT); } /* jump start interrupt handler, if needed */ tcic_interrupt(0, NULL, NULL); if (register_ss_entry(sockets, &tcic_service) != 0) { printk(KERN_NOTICE "tcic: register_ss_entry() failed\n"); release_region(tcic_base, 16); if (cs_irq != 0) free_irq(cs_irq, tcic_interrupt); return -ENODEV; } return 0; } /* init_tcic */ /*====================================================================*/ static void __exit exit_tcic(void) { u_long flags; unregister_ss_entry(&tcic_service); save_flags(flags); cli(); if (cs_irq != 0) { tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00); free_irq(cs_irq, tcic_interrupt); } del_timer(&poll_timer); restore_flags(flags); release_region(tcic_base, 16); } /* exit_tcic */ /*====================================================================*/ static void tcic_interrupt(int irq, void *dev, struct pt_regs *regs) { int i, quick = 0; u_char latch, sstat; u_short psock; u_int events; static volatile int active = 0; if (active) { printk(KERN_NOTICE "tcic: reentered interrupt handler!\n"); return; } else active = 1; DEBUG(2, "tcic: tcic_interrupt()\n"); for (i = 0; i < sockets; i++) { psock = socket_table[i].psock; tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT) | TCIC_ADDR_INDREG | TCIC_SCF1(psock)); sstat = tcic_getb(TCIC_SSTAT); latch = sstat ^ socket_table[psock].last_sstat; socket_table[i].last_sstat = sstat; if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) { tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR); quick = 1; } if ((latch == 0) || (socket_table[psock].handler == NULL)) continue; events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0; events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0; if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) { events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0; } else { events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0; events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0; events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0; } DEBUG(1, "tcic: socket %d event 0x%04x\n", i, events); if (events) socket_table[i].handler(socket_table[i].info, events); } /* Schedule next poll, if needed */ if (((cs_irq == 0) || quick) && !timer_pending(&poll_timer)) { poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval); add_timer(&poll_timer); } active = 0; DEBUG(2, "tcic: interrupt done\n"); } /* tcic_interrupt */ static void tcic_timer(u_long data) { DEBUG(2, "tcic: tcic_timer()\n"); tcic_interrupt(0, NULL, NULL); } /*====================================================================*/ static int tcic_register_callback(u_short lsock, ss_callback_t *call) { if (call == NULL) { socket_table[lsock].handler = NULL; MOD_DEC_USE_COUNT; } else { MOD_INC_USE_COUNT; socket_table[lsock].handler = call->handler; socket_table[lsock].info = call->info; } return 0; } /* tcic_register_callback */ /*====================================================================*/ static int tcic_get_status(u_short lsock, u_int *value) { u_short psock = socket_table[lsock].psock; u_char reg; tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT) | TCIC_ADDR_INDREG | TCIC_SCF1(psock)); reg = tcic_getb(TCIC_SSTAT); *value = (reg & TCIC_SSTAT_CD) ? SS_DETECT : 0; *value |= (reg & TCIC_SSTAT_WP) ? SS_WRPROT : 0; if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) { *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0; } else { *value |= (reg & TCIC_SSTAT_RDY) ? SS_READY : 0; *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0; *value |= (reg & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0; } reg = tcic_getb(TCIC_PWR); if (reg & (TCIC_PWR_VCC(psock)|TCIC_PWR_VPP(psock))) *value |= SS_POWERON; DEBUG(1, "tcic: GetStatus(%d) = %#2.2x\n", lsock, *value); return 0; } /* tcic_get_status */ /*====================================================================*/ static int tcic_inquire_socket(u_short lsock, socket_cap_t *cap) { *cap = tcic_cap; return 0; } /* tcic_inquire_socket */ /*====================================================================*/ static int tcic_get_socket(u_short lsock, socket_state_t *state) { u_short psock = socket_table[lsock].psock; u_char reg; u_short scf1, scf2; tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT) | TCIC_ADDR_INDREG | TCIC_SCF1(psock)); scf1 = tcic_getw(TCIC_DATA); state->flags = (scf1 & TCIC_SCF1_IOSTS) ? SS_IOCARD : 0; state->flags |= (scf1 & TCIC_SCF1_DMA_MASK) ? SS_DMA_MODE : 0; state->flags |= (scf1 & TCIC_SCF1_SPKR) ? SS_SPKR_ENA : 0; if (tcic_getb(TCIC_SCTRL) & TCIC_SCTRL_ENA) state->flags |= SS_OUTPUT_ENA; state->io_irq = scf1 & TCIC_SCF1_IRQ_MASK; if (state->io_irq == 1) state->io_irq = 11; reg = tcic_getb(TCIC_PWR); state->Vcc = state->Vpp = 0; if (reg & TCIC_PWR_VCC(psock)) { if (reg & TCIC_PWR_VPP(psock)) state->Vcc = 50; else state->Vcc = state->Vpp = 50; } else { if (reg & TCIC_PWR_VPP(psock)) { state->Vcc = 50; state->Vpp = 120; } } reg = tcic_aux_getb(TCIC_AUX_ILOCK); state->flags |= (reg & TCIC_ILOCK_CRESET) ? SS_RESET : 0; /* Card status change interrupt mask */ tcic_setw(TCIC_ADDR, TCIC_SCF2(psock)); scf2 = tcic_getw(TCIC_DATA); state->csc_mask = (scf2 & TCIC_SCF2_MCD) ? 0 : SS_DETECT; if (state->flags & SS_IOCARD) { state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT1) ? 0 : SS_STSCHG; } else { state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT1) ? 0 : SS_BATDEAD; state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT2) ? 0 : SS_BATWARN; state->csc_mask |= (scf2 & TCIC_SCF2_MRDY) ? 0 : SS_READY; } DEBUG(1, "tcic: GetSocket(%d) = flags %#3.3x, Vcc %d, Vpp %d, " "io_irq %d, csc_mask %#2.2x\n", lsock, state->flags, state->Vcc, state->Vpp, state->io_irq, state->csc_mask); return 0; } /* tcic_get_socket */ /*====================================================================*/ static int tcic_set_socket(u_short lsock, socket_state_t *state) { u_short psock = socket_table[lsock].psock; u_char reg; u_short scf1, scf2; DEBUG(1, "tcic: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags, state->Vcc, state->Vpp, state->io_irq, state->csc_mask); tcic_setw(TCIC_ADDR+2, (psock << TCIC_SS_SHFT) | TCIC_ADR2_INDREG); reg = tcic_getb(TCIC_PWR); reg &= ~(TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock)); if (state->Vcc == 50) { switch (state->Vpp) { case 0: reg |= TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock); break; case 50: reg |= TCIC_PWR_VCC(psock); break; case 120: reg |= TCIC_PWR_VPP(psock); break; default: return -EINVAL; } } else if (state->Vcc != 0) return -EINVAL; if (reg != tcic_getb(TCIC_PWR)) tcic_setb(TCIC_PWR, reg); reg = TCIC_ILOCK_HOLD_CCLK | TCIC_ILOCK_CWAIT; if (state->flags & SS_OUTPUT_ENA) { tcic_setb(TCIC_SCTRL, TCIC_SCTRL_ENA); reg |= TCIC_ILOCK_CRESENA; } else tcic_setb(TCIC_SCTRL, 0); if (state->flags & SS_RESET) reg |= TCIC_ILOCK_CRESET; tcic_aux_setb(TCIC_AUX_ILOCK, reg); tcic_setw(TCIC_ADDR, TCIC_SCF1(psock)); scf1 = TCIC_SCF1_FINPACK; scf1 |= TCIC_IRQ(state->io_irq); if (state->flags & SS_IOCARD) { scf1 |= TCIC_SCF1_IOSTS; if (state->flags & SS_SPKR_ENA) scf1 |= TCIC_SCF1_SPKR; if (state->flags & SS_DMA_MODE) scf1 |= TCIC_SCF1_DREQ2 << TCIC_SCF1_DMA_SHIFT; } tcic_setw(TCIC_DATA, scf1); /* Some general setup stuff, and configure status interrupt */ reg = TCIC_WAIT_ASYNC | TCIC_WAIT_SENSE | to_cycles(250); tcic_aux_setb(TCIC_AUX_WCTL, reg); tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00| TCIC_IRQ(cs_irq)); /* Card status change interrupt mask */ tcic_setw(TCIC_ADDR, TCIC_SCF2(psock)); scf2 = TCIC_SCF2_MALL; if (state->csc_mask & SS_DETECT) scf2 &= ~TCIC_SCF2_MCD; if (state->flags & SS_IOCARD) { if (state->csc_mask & SS_STSCHG) reg &= ~TCIC_SCF2_MLBAT1; } else { if (state->csc_mask & SS_BATDEAD) reg &= ~TCIC_SCF2_MLBAT1; if (state->csc_mask & SS_BATWARN) reg &= ~TCIC_SCF2_MLBAT2; if (state->csc_mask & SS_READY) reg &= ~TCIC_SCF2_MRDY; } tcic_setw(TCIC_DATA, scf2); /* For the ISA bus, the irq should be active-high totem-pole */ tcic_setb(TCIC_IENA, TCIC_IENA_CDCHG | TCIC_IENA_CFG_HIGH); return 0; } /* tcic_set_socket */ /*====================================================================*/ static int tcic_get_io_map(u_short lsock, struct pccard_io_map *io) { u_short psock = socket_table[lsock].psock; u_short base, ioctl; u_int addr; if (io->map > 1) return -EINVAL; tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); addr = TCIC_IWIN(psock, io->map); tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X); base = tcic_getw(TCIC_DATA); tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X); ioctl = tcic_getw(TCIC_DATA); if (ioctl & TCIC_ICTL_TINY) io->start = io->stop = base; else { io->start = base & (base-1); io->stop = io->start + (base ^ (base-1)); } io->speed = to_ns(ioctl & TCIC_ICTL_WSCNT_MASK); io->flags = (ioctl & TCIC_ICTL_ENA) ? MAP_ACTIVE : 0; switch (ioctl & TCIC_ICTL_BW_MASK) { case TCIC_ICTL_BW_DYN: io->flags |= MAP_AUTOSZ; break; case TCIC_ICTL_BW_16: io->flags |= MAP_16BIT; break; default: break; } DEBUG(3, "tcic: GetIOMap(%d, %d) = %#2.2x, %d ns, " "%#4.4x-%#4.4x\n", lsock, io->map, io->flags, io->speed, io->start, io->stop); return 0; } /* tcic_get_io_map */ /*====================================================================*/ static int tcic_set_io_map(u_short lsock, struct pccard_io_map *io) { u_short psock = socket_table[lsock].psock; u_int addr; u_short base, len, ioctl; DEBUG(3, "tcic: SetIOMap(%d, %d, %#2.2x, %d ns, " "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags, io->speed, io->start, io->stop); if ((io->map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) || (io->stop < io->start)) return -EINVAL; tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); addr = TCIC_IWIN(psock, io->map); base = io->start; len = io->stop - io->start; /* Check to see that len+1 is power of two, etc */ if ((len & (len+1)) || (base & len)) return -EINVAL; base |= (len+1)>>1; tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X); tcic_setw(TCIC_DATA, base); ioctl = (psock << TCIC_ICTL_SS_SHFT); ioctl |= (len == 0) ? TCIC_ICTL_TINY : 0; ioctl |= (io->flags & MAP_ACTIVE) ? TCIC_ICTL_ENA : 0; ioctl |= to_cycles(io->speed) & TCIC_ICTL_WSCNT_MASK; if (!(io->flags & MAP_AUTOSZ)) { ioctl |= TCIC_ICTL_QUIET; ioctl |= (io->flags & MAP_16BIT) ? TCIC_ICTL_BW_16 : TCIC_ICTL_BW_8; } tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X); tcic_setw(TCIC_DATA, ioctl); return 0; } /* tcic_set_io_map */ /*====================================================================*/ static int tcic_get_mem_map(u_short lsock, struct pccard_mem_map *mem) { u_short psock = socket_table[lsock].psock; u_short addr, ctl; u_long base, mmap; if (mem->map > 3) return -EINVAL; tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); addr = TCIC_MWIN(psock, mem->map); tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X); base = tcic_getw(TCIC_DATA); if (base & TCIC_MBASE_4K_BIT) { mem->sys_start = base & TCIC_MBASE_HA_MASK; mem->sys_stop = mem->sys_start; } else { base &= TCIC_MBASE_HA_MASK; mem->sys_start = (base & (base-1)); mem->sys_stop = mem->sys_start + (base ^ (base-1)); } mem->sys_start = mem->sys_start << TCIC_MBASE_HA_SHFT; mem->sys_stop = (mem->sys_stop << TCIC_MBASE_HA_SHFT) + 0x0fff; tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X); mmap = tcic_getw(TCIC_DATA); mem->flags = (mmap & TCIC_MMAP_REG) ? MAP_ATTRIB : 0; mmap &= TCIC_MMAP_CA_MASK; mem->card_start = mem->sys_start + (mmap << TCIC_MMAP_CA_SHFT); mem->card_start &= 0x3ffffff; tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X); ctl = tcic_getw(TCIC_DATA); mem->flags |= (ctl & TCIC_MCTL_ENA) ? MAP_ACTIVE : 0; mem->flags |= (ctl & TCIC_MCTL_B8) ? 0 : MAP_16BIT; mem->flags |= (ctl & TCIC_MCTL_WP) ? MAP_WRPROT : 0; mem->speed = to_ns(ctl & TCIC_MCTL_WSCNT_MASK); DEBUG(3, "tcic: GetMemMap(%d, %d) = %#2.2x, %d ns, " "%#5.5lx-%#5.5lx, %#5.5x\n", lsock, mem->map, mem->flags, mem->speed, mem->sys_start, mem->sys_stop, mem->card_start); return 0; } /* tcic_get_mem_map */ /*====================================================================*/ static int tcic_set_mem_map(u_short lsock, struct pccard_mem_map *mem) { u_short psock = socket_table[lsock].psock; u_short addr, ctl; u_long base, len, mmap; DEBUG(3, "tcic: SetMemMap(%d, %d, %#2.2x, %d ns, " "%#5.5lx-%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags, mem->speed, mem->sys_start, mem->sys_stop, mem->card_start); if ((mem->map > 3) || (mem->card_start > 0x3ffffff) || (mem->sys_start > 0xffffff) || (mem->sys_stop > 0xffffff) || (mem->sys_start > mem->sys_stop) || (mem->speed > 1000)) return -EINVAL; tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); addr = TCIC_MWIN(psock, mem->map); base = mem->sys_start; len = mem->sys_stop - mem->sys_start; if ((len & (len+1)) || (base & len)) return -EINVAL; if (len == 0x0fff) base = (base >> TCIC_MBASE_HA_SHFT) | TCIC_MBASE_4K_BIT; else base = (base | (len+1)>>1) >> TCIC_MBASE_HA_SHFT; tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X); tcic_setw(TCIC_DATA, base); mmap = mem->card_start - mem->sys_start; mmap = (mmap >> TCIC_MMAP_CA_SHFT) & TCIC_MMAP_CA_MASK; if (mem->flags & MAP_ATTRIB) mmap |= TCIC_MMAP_REG; tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X); tcic_setw(TCIC_DATA, mmap); ctl = TCIC_MCTL_QUIET | (psock << TCIC_MCTL_SS_SHFT); ctl |= to_cycles(mem->speed) & TCIC_MCTL_WSCNT_MASK; ctl |= (mem->flags & MAP_16BIT) ? 0 : TCIC_MCTL_B8; ctl |= (mem->flags & MAP_WRPROT) ? TCIC_MCTL_WP : 0; ctl |= (mem->flags & MAP_ACTIVE) ? TCIC_MCTL_ENA : 0; tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X); tcic_setw(TCIC_DATA, ctl); return 0; } /* tcic_set_mem_map */ /*====================================================================*/ typedef int (*subfn_t)(u_short, void *); static subfn_t service_table[] = { (subfn_t)&tcic_register_callback, (subfn_t)&tcic_inquire_socket, (subfn_t)&tcic_get_status, (subfn_t)&tcic_get_socket, (subfn_t)&tcic_set_socket, (subfn_t)&tcic_get_io_map, (subfn_t)&tcic_set_io_map, (subfn_t)&tcic_get_mem_map, (subfn_t)&tcic_set_mem_map, }; #define NFUNC (sizeof(service_table)/sizeof(subfn_t)) static int tcic_service(u_int lsock, u_int cmd, void *arg) { return (cmd < NFUNC) ? service_table[cmd](lsock, arg) : -EINVAL; } /*====================================================================*/ module_init(init_tcic); module_exit(exit_tcic);