diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/Makefile | 2 | ||||
| -rw-r--r-- | drivers/pcmcia/cistpl.c | 4 | ||||
| -rw-r--r-- | drivers/pcmcia/cs.c | 935 | ||||
| -rw-r--r-- | drivers/pcmcia/pcmcia_resource.c | 989 | ||||
| -rw-r--r-- | drivers/pcmcia/rsrc_mgr.c | 3 |
5 files changed, 997 insertions, 936 deletions
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 195e8104ae6..ef694c74dfb 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -10,7 +10,7 @@ pcmcia_core-y += cs.o cistpl.o rsrc_mgr.o socket_sysfs.o pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o obj-$(CONFIG_PCCARD) += pcmcia_core.o -pcmcia-y += ds.o pcmcia_compat.o +pcmcia-y += ds.o pcmcia_compat.o pcmcia_resource.o pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o obj-$(CONFIG_PCMCIA) += pcmcia.o diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index af4ff08d6dc..a8aa7b9cf64 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -182,6 +182,8 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, *(u_char *)(ptr+2), *(u_char *)(ptr+3)); return 0; } +EXPORT_SYMBOL(pcmcia_read_cis_mem); + void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr) @@ -239,6 +241,8 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, } } } +EXPORT_SYMBOL(pcmcia_write_cis_mem); + /*====================================================================== diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 574706e7479..6a35a4a9f93 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -89,9 +89,6 @@ INT_MODULE_PARM(unreset_limit, 30); /* unreset_check's */ /* Access speed for attribute memory windows */ INT_MODULE_PARM(cis_speed, 300); /* ns */ -/* Access speed for IO windows */ -INT_MODULE_PARM(io_speed, 0); /* ns */ - #ifdef DEBUG static int pc_debug; @@ -117,11 +114,6 @@ EXPORT_SYMBOL(pcmcia_socket_list); EXPORT_SYMBOL(pcmcia_socket_list_rwsem); -#ifdef CONFIG_PCMCIA_PROBE -/* mask ofIRQs already reserved by other cards, we should avoid using them */ -static u8 pcmcia_used_irq[NR_IRQS]; -#endif - /*==================================================================== Low-level PC Card interface drivers need to register with Card @@ -748,260 +740,6 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events) } /* pcmcia_parse_events */ -/*====================================================================== - - Special stuff for managing IO windows, because they are scarce. - -======================================================================*/ - -static int alloc_io_space(struct pcmcia_socket *s, u_int attr, ioaddr_t *base, - ioaddr_t num, u_int lines) -{ - int i; - kio_addr_t try, align; - - align = (*base) ? (lines ? 1<<lines : 0) : 1; - if (align && (align < num)) { - if (*base) { - cs_dbg(s, 0, "odd IO request: num %#x align %#lx\n", - num, align); - align = 0; - } else - while (align && (align < num)) align <<= 1; - } - if (*base & ~(align-1)) { - cs_dbg(s, 0, "odd IO request: base %#x align %#lx\n", - *base, align); - align = 0; - } - if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { - *base = s->io_offset | (*base & 0x0fff); - return 0; - } - /* Check for an already-allocated window that must conflict with - what was asked for. It is a hack because it does not catch all - potential conflicts, just the most obvious ones. */ - for (i = 0; i < MAX_IO_WIN; i++) - if ((s->io[i].NumPorts != 0) && - ((s->io[i].BasePort & (align-1)) == *base)) - return 1; - for (i = 0; i < MAX_IO_WIN; i++) { - if (s->io[i].NumPorts == 0) { - s->io[i].res = pcmcia_find_io_region(*base, num, align, s); - if (s->io[i].res) { - s->io[i].Attributes = attr; - s->io[i].BasePort = *base = s->io[i].res->start; - s->io[i].NumPorts = s->io[i].InUse = num; - break; - } else - return 1; - } else if (s->io[i].Attributes != attr) - continue; - /* Try to extend top of window */ - try = s->io[i].BasePort + s->io[i].NumPorts; - if ((*base == 0) || (*base == try)) - if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, - s->io[i].res->end + num, s) == 0) { - *base = try; - s->io[i].NumPorts += num; - s->io[i].InUse += num; - break; - } - /* Try to extend bottom of window */ - try = s->io[i].BasePort - num; - if ((*base == 0) || (*base == try)) - if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, - s->io[i].res->end, s) == 0) { - s->io[i].BasePort = *base = try; - s->io[i].NumPorts += num; - s->io[i].InUse += num; - break; - } - } - return (i == MAX_IO_WIN); -} /* alloc_io_space */ - -static void release_io_space(struct pcmcia_socket *s, ioaddr_t base, - ioaddr_t num) -{ - int i; - - for (i = 0; i < MAX_IO_WIN; i++) { - if ((s->io[i].BasePort <= base) && - (s->io[i].BasePort+s->io[i].NumPorts >= base+num)) { - s->io[i].InUse -= num; - /* Free the window if no one else is using it */ - if (s->io[i].InUse == 0) { - s->io[i].NumPorts = 0; - release_resource(s->io[i].res); - kfree(s->io[i].res); - s->io[i].res = NULL; - } - } - } -} - -/*====================================================================== - - Access_configuration_register() reads and writes configuration - registers in attribute memory. Memory window 0 is reserved for - this and the tuple reading services. - -======================================================================*/ - -int pccard_access_configuration_register(struct pcmcia_socket *s, - unsigned int function, - conf_reg_t *reg) -{ - config_t *c; - int addr; - u_char val; - - if (!s || !s->config) - return CS_NO_CARD; - - c = &s->config[function]; - - if (c == NULL) - return CS_NO_CARD; - - if (!(c->state & CONFIG_LOCKED)) - return CS_CONFIGURATION_LOCKED; - - addr = (c->ConfigBase + reg->Offset) >> 1; - - switch (reg->Action) { - case CS_READ: - pcmcia_read_cis_mem(s, 1, addr, 1, &val); - reg->Value = val; - break; - case CS_WRITE: - val = reg->Value; - pcmcia_write_cis_mem(s, 1, addr, 1, &val); - break; - default: - return CS_BAD_ARGS; - break; - } - return CS_SUCCESS; -} /* access_configuration_register */ -EXPORT_SYMBOL(pccard_access_configuration_register); - - -/*====================================================================*/ - -int pccard_get_configuration_info(struct pcmcia_socket *s, - unsigned int function, - config_info_t *config) -{ - config_t *c; - - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - - config->Function = function; - -#ifdef CONFIG_CARDBUS - if (s->state & SOCKET_CARDBUS) { - memset(config, 0, sizeof(config_info_t)); - config->Vcc = s->socket.Vcc; - config->Vpp1 = config->Vpp2 = s->socket.Vpp; - config->Option = s->cb_dev->subordinate->number; - if (s->state & SOCKET_CARDBUS_CONFIG) { - config->Attributes = CONF_VALID_CLIENT; - config->IntType = INT_CARDBUS; - config->AssignedIRQ = s->irq.AssignedIRQ; - if (config->AssignedIRQ) - config->Attributes |= CONF_ENABLE_IRQ; - config->BasePort1 = s->io[0].BasePort; - config->NumPorts1 = s->io[0].NumPorts; - } - return CS_SUCCESS; - } -#endif - - c = (s->config != NULL) ? &s->config[function] : NULL; - - if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { - config->Attributes = 0; - config->Vcc = s->socket.Vcc; - config->Vpp1 = config->Vpp2 = s->socket.Vpp; - return CS_SUCCESS; - } - - /* !!! This is a hack !!! */ - memcpy(&config->Attributes, &c->Attributes, sizeof(config_t)); - config->Attributes |= CONF_VALID_CLIENT; - config->CardValues = c->CardValues; - config->IRQAttributes = c->irq.Attributes; - config->AssignedIRQ = s->irq.AssignedIRQ; - config->BasePort1 = c->io.BasePort1; - config->NumPorts1 = c->io.NumPorts1; - config->Attributes1 = c->io.Attributes1; - config->BasePort2 = c->io.BasePort2; - config->NumPorts2 = c->io.NumPorts2; - config->Attributes2 = c->io.Attributes2; - config->IOAddrLines = c->io.IOAddrLines; - - return CS_SUCCESS; -} /* get_configuration_info */ -EXPORT_SYMBOL(pccard_get_configuration_info); - -/*====================================================================== - - Return information about this version of Card Services. - -======================================================================*/ - -int pcmcia_get_card_services_info(servinfo_t *info) -{ - unsigned int socket_count = 0; - struct list_head *tmp; - info->Signature[0] = 'C'; - info->Signature[1] = 'S'; - down_read(&pcmcia_socket_list_rwsem); - list_for_each(tmp, &pcmcia_socket_list) - socket_count++; - up_read(&pcmcia_socket_list_rwsem); - info->Count = socket_count; - info->Revision = CS_RELEASE_CODE; - info->CSLevel = 0x0210; - info->VendorString = (char *)release; - return CS_SUCCESS; -} /* get_card_services_info */ - - -/*====================================================================*/ - -int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req) -{ - window_t *win; - int w; - - if (!s || !(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - for (w = idx; w < MAX_WIN; w++) - if (s->state & SOCKET_WIN_REQ(w)) break; - if (w == MAX_WIN) - return CS_NO_MORE_ITEMS; - win = &s->win[w]; - req->Base = win->ctl.res->start; - req->Size = win->ctl.res->end - win->ctl.res->start + 1; - req->AccessSpeed = win->ctl.speed; - req->Attributes = 0; - if (win->ctl.flags & MAP_ATTRIB) - req->Attributes |= WIN_MEMORY_TYPE_AM; - if (win->ctl.flags & MAP_ACTIVE) - req->Attributes |= WIN_ENABLE; - if (win->ctl.flags & MAP_16BIT) - req->Attributes |= WIN_DATA_WIDTH_16; - if (win->ctl.flags & MAP_USE_WAIT) - req->Attributes |= WIN_USE_WAIT; - *handle = win; - return CS_SUCCESS; -} /* get_window */ -EXPORT_SYMBOL(pcmcia_get_window); - /*===================================================================== Return the PCI device associated with a card.. @@ -1022,143 +760,6 @@ EXPORT_SYMBOL(pcmcia_lookup_bus); #endif -/*====================================================================== - - Get the current socket state bits. We don't support the latched - SocketState yet: I haven't seen any point for it. - -======================================================================*/ - -int pccard_get_status(struct pcmcia_socket *s, unsigned int function, cs_status_t *status) -{ - config_t *c; - int val; - - s->ops->get_status(s, &val); - status->CardState = status->SocketState = 0; - status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0; - status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0; - status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0; - status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0; - if (s->state & SOCKET_SUSPEND) - status->CardState |= CS_EVENT_PM_SUSPEND; - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - - c = (s->config != NULL) ? &s->config[function] : NULL; - if ((c != NULL) && (c->state & CONFIG_LOCKED) && - (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { - u_char reg; - if (c->Present & PRESENT_PIN_REPLACE) { - pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); - status->CardState |= - (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; - status->CardState |= - (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0; - status->CardState |= - (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0; - status->CardState |= - (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0; - } else { - /* No PRR? Then assume we're always ready */ - status->CardState |= CS_EVENT_READY_CHANGE; - } - if (c->Present & PRESENT_EXT_STATUS) { - pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); - status->CardState |= - (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; - } - return CS_SUCCESS; - } - status->CardState |= - (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0; - status->CardState |= - (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0; - status->CardState |= - (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0; - status->CardState |= - (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0; - return CS_SUCCESS; -} /* get_status */ -EXPORT_SYMBOL(pccard_get_status); - -/*====================================================================== - - Change the card address of an already open memory window. - -======================================================================*/ - -int pcmcia_get_mem_page(window_handle_t win, memreq_t *req) -{ - if ((win == NULL) || (win->magic != WINDOW_MAGIC)) - return CS_BAD_HANDLE; - req->Page = 0; - req->CardOffset = win->ctl.card_start; - return CS_SUCCESS; -} /* get_mem_page */ - -int pcmcia_map_mem_page(window_handle_t win, memreq_t *req) -{ - struct pcmcia_socket *s; - if ((win == NULL) || (win->magic != WINDOW_MAGIC)) - return CS_BAD_HANDLE; - if (req->Page != 0) - return CS_BAD_PAGE; - s = win->sock; - win->ctl.card_start = req->CardOffset; - if (s->ops->set_mem_map(s, &win->ctl) != 0) - return CS_BAD_OFFSET; - return CS_SUCCESS; -} /* map_mem_page */ - -/*====================================================================== - - Modify a locked socket configuration - -======================================================================*/ - -int pcmcia_modify_configuration(client_handle_t handle, - modconf_t *mod) -{ - struct pcmcia_socket *s; - config_t *c; - - if (CHECK_HANDLE(handle)) - return CS_BAD_HANDLE; - s = SOCKET(handle); c = CONFIG(handle); - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - if (!(c->state & CONFIG_LOCKED)) - return CS_CONFIGURATION_LOCKED; - - if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { - if (mod->Attributes & CONF_ENABLE_IRQ) { - c->Attributes |= CONF_ENABLE_IRQ; - s->socket.io_irq = s->irq.AssignedIRQ; - } else { - c->Attributes &= ~CONF_ENABLE_IRQ; - s->socket.io_irq = 0; - } - s->ops->set_socket(s, &s->socket); - } - - if (mod->Attributes & CONF_VCC_CHANGE_VALID) - return CS_BAD_VCC; - - /* We only allow changing Vpp1 and Vpp2 to the same value */ - if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && - (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { - if (mod->Vpp1 != mod->Vpp2) - return CS_BAD_VPP; - c->Vpp1 = c->Vpp2 = s->socket.Vpp = mod->Vpp1; - if (s->ops->set_socket(s, &s->socket)) - return CS_BAD_VPP; - } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || - (mod->Attributes & CONF_VPP2_CHANGE_VALID)) - return CS_BAD_VPP; - - return CS_SUCCESS; -} /* modify_configuration */ /* register pcmcia_callback */ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c) @@ -1188,530 +789,6 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c) } EXPORT_SYMBOL(pccard_register_pcmcia); -/*====================================================================*/ - -int pcmcia_release_configuration(client_handle_t handle) -{ - pccard_io_map io = { 0, 0, 0, 0, 1 }; - struct pcmcia_socket *s; - int i; - - if (CHECK_HANDLE(handle) || - !(handle->state & CLIENT_CONFIG_LOCKED)) - return CS_BAD_HANDLE; - handle->state &= ~CLIENT_CONFIG_LOCKED; - s = SOCKET(handle); - -#ifdef CONFIG_CARDBUS - if (handle->state & CLIENT_CARDBUS) - return CS_SUCCESS; -#endif - - if (!(handle->state & CLIENT_STALE)) { - config_t *c = CONFIG(handle); - if (--(s->lock_count) == 0) { - s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ - s->socket.Vpp = 0; - s->socket.io_irq = 0; - s->ops->set_socket(s, &s->socket); - } - if (c->state & CONFIG_IO_REQ) - for (i = 0; i < MAX_IO_WIN; i++) { - if (s->io[i].NumPorts == 0) - continue; - s->io[i].Config--; - if (s->io[i].Config != 0) - continue; - io.map = i; - s->ops->set_io_map(s, &io); - } - c->state &= ~CONFIG_LOCKED; - } - - return CS_SUCCESS; -} /* release_configuration */ - -/*====================================================================== - - Release_io() releases the I/O ranges allocated by a client. This - may be invoked some time after a card ejection has already dumped - the actual socket configuration, so if the client is "stale", we - don't bother checking the port ranges against the current socket - values. - -======================================================================*/ - -int pcmcia_release_io(client_handle_t handle, io_req_t *req) -{ - struct pcmcia_socket *s; - - if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IO_REQ)) - return CS_BAD_HANDLE; - handle->state &= ~CLIENT_IO_REQ; - s = SOCKET(handle); - -#ifdef CONFIG_CARDBUS - if (handle->state & CLIENT_CARDBUS) - return CS_SUCCESS; -#endif - - if (!(handle->state & CLIENT_STALE)) { - config_t *c = CONFIG(handle); - if (c->state & CONFIG_LOCKED) - return CS_CONFIGURATION_LOCKED; - if ((c->io.BasePort1 != req->BasePort1) || - (c->io.NumPorts1 != req->NumPorts1) || - (c->io.BasePort2 != req->BasePort2) || - (c->io.NumPorts2 != req->NumPorts2)) - return CS_BAD_ARGS; - c->state &= ~CONFIG_IO_REQ; - } - - release_io_space(s, req->BasePort1, req->NumPorts1); - if (req->NumPorts2) - release_io_space(s, req->BasePort2, req->NumPorts2); - - return CS_SUCCESS; -} /* release_io */ - -/*====================================================================*/ - -int pcmcia_release_irq(client_handle_t handle, irq_req_t *req) -{ - struct pcmcia_socket *s; - if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IRQ_REQ)) - return CS_BAD_HANDLE; - handle->state &= ~CLIENT_IRQ_REQ; - s = SOCKET(handle); - - if (!(handle->state & CLIENT_STALE)) { - config_t *c = CONFIG(handle); - if (c->state & CONFIG_LOCKED) - return CS_CONFIGURATION_LOCKED; - if (c->irq.Attributes != req->Attributes) - return CS_BAD_ATTRIBUTE; - if (s->irq.AssignedIRQ != req->AssignedIRQ) - return CS_BAD_IRQ; - if (--s->irq.Config == 0) { - c->state &= ~CONFIG_IRQ_REQ; - s->irq.AssignedIRQ = 0; - } - } - - if (req->Attributes & IRQ_HANDLE_PRESENT) { - free_irq(req->AssignedIRQ, req->Instance); - } - -#ifdef CONFIG_PCMCIA_PROBE - pcmcia_used_irq[req->AssignedIRQ]--; -#endif - - return CS_SUCCESS; -} /* cs_release_irq */ - -/*====================================================================*/ - -int pcmcia_release_window(window_handle_t win) -{ - struct pcmcia_socket *s; - - if ((win == NULL) || (win->magic != WINDOW_MAGIC)) - return CS_BAD_HANDLE; - s = win->sock; - if (!(win->handle->state & CLIENT_WIN_REQ(win->index))) - return CS_BAD_HANDLE; - - /* Shut down memory window */ - win->ctl.flags &= ~MAP_ACTIVE; - s->ops->set_mem_map(s, &win->ctl); - s->state &= ~SOCKET_WIN_REQ(win->index); - - /* Release system memory */ - if (win->ctl.res) { - release_resource(win->ctl.res); - kfree(win->ctl.res); - win->ctl.res = NULL; - } - win->handle->state &= ~CLIENT_WIN_REQ(win->index); - - win->magic = 0; - - return CS_SUCCESS; -} /* release_window */ - -/*====================================================================*/ - -int pcmcia_request_configuration(client_handle_t handle, - config_req_t *req) -{ - int i; - u_int base; - struct pcmcia_socket *s; - config_t *c; - pccard_io_map iomap; - - if (CHECK_HANDLE(handle)) - return CS_BAD_HANDLE; - s = SOCKET(handle); - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - -#ifdef CONFIG_CARDBUS - if (handle->state & CLIENT_CARDBUS) - return CS_UNSUPPORTED_MODE; -#endif - - if (req->IntType & INT_CARDBUS) - return CS_UNSUPPORTED_MODE; - c = CONFIG(handle); - if (c->state & CONFIG_LOCKED) - return CS_CONFIGURATION_LOCKED; - - /* Do power control. We don't allow changes in Vcc. */ - if (s->socket.Vcc != req->Vcc) - return CS_BAD_VCC; - if (req->Vpp1 != req->Vpp2) - return CS_BAD_VPP; - s->socket.Vpp = req->Vpp1; - if (s->ops->set_socket(s, &s->socket)) - return CS_BAD_VPP; - - c->Vcc = req->Vcc; c->Vpp1 = c->Vpp2 = req->Vpp1; - - /* Pick memory or I/O card, DMA mode, interrupt */ - c->IntType = req->IntType; - c->Attributes = req->Attributes; - if (req->IntType & INT_MEMORY_AND_IO) - s->socket.flags |= SS_IOCARD; - if (req->IntType & INT_ZOOMED_VIDEO) - s->socket.flags |= SS_ZVCARD | SS_IOCARD; - if (req->Attributes & CONF_ENABLE_DMA) - s->socket.flags |= SS_DMA_MODE; - if (req->Attributes & CONF_ENABLE_SPKR) - s->socket.flags |= SS_SPKR_ENA; - if (req->Attributes & CONF_ENABLE_IRQ) - s->socket.io_irq = s->irq.AssignedIRQ; - else - s->socket.io_irq = 0; - s->ops->set_socket(s, &s->socket); - s->lock_count++; - - /* Set up CIS configuration registers */ - base = c->ConfigBase = req->ConfigBase; - c->Present = c->CardValues = req->Present; - if (req->Present & PRESENT_COPY) { - c->Copy = req->Copy; - pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); - } - if (req->Present & PRESENT_OPTION) { - if (s->functions == 1) { - c->Option = req->ConfigIndex & COR_CONFIG_MASK; - } else { - c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; - c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; - if (req->Present & PRESENT_IOBASE_0) - c->Option |= COR_ADDR_DECODE; - } - if (c->state & CONFIG_IRQ_REQ) - if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) - c->Option |= COR_LEVEL_REQ; - pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); - mdelay(40); - } - if (req->Present & PRESENT_STATUS) { - c->Status = req->Status; - pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); - } - if (req->Present & PRESENT_PIN_REPLACE) { - c->Pin = req->Pin; - pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); - } - if (req->Present & PRESENT_EXT_STATUS) { - c->ExtStatus = req->ExtStatus; - pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); - } - if (req->Present & PRESENT_IOBASE_0) { - u_char b = c->io.BasePort1 & 0xff; - pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); - b = (c->io.BasePort1 >> 8) & 0xff; - pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); - } - if (req->Present & PRESENT_IOSIZE) { - u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; - pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); - } - - /* Configure I/O windows */ - if (c->state & CONFIG_IO_REQ) { - iomap.speed = io_speed; - for (i = 0; i < MAX_IO_WIN; i++) - if (s->io[i].NumPorts != 0) { - iomap.map = i; - iomap.flags = MAP_ACTIVE; - switch (s->io[i].Attributes & IO_DATA_PATH_WIDTH) { - case IO_DATA_PATH_WIDTH_16: - iomap.flags |= MAP_16BIT; break; - case IO_DATA_PATH_WIDTH_AUTO: - iomap.flags |= MAP_AUTOSZ; break; - default: - break; - } - iomap.start = s->io[i].BasePort; - iomap.stop = iomap.start + s->io[i].NumPorts - 1; - s->ops->set_io_map(s, &iomap); - s->io[i].Config++; - } - } - - c->state |= CONFIG_LOCKED; - handle->state |= CLIENT_CONFIG_LOCKED; - return CS_SUCCESS; -} /* request_configuration */ - -/*====================================================================== - - Request_io() reserves ranges of port addresses for a socket. - I have not implemented range sharing or alias addressing. - -======================================================================*/ - -int pcmcia_request_io(client_handle_t handle, io_req_t *req) -{ - struct pcmcia_socket *s; - config_t *c; - - if (CHECK_HANDLE(handle)) - return CS_BAD_HANDLE; - s = SOCKET(handle); - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - - if (handle->state & CLIENT_CARDBUS) { -#ifdef CONFIG_CARDBUS - handle->state |= CLIENT_IO_REQ; - return CS_SUCCESS; -#else - return CS_UNSUPPORTED_FUNCTION; -#endif - } - - if (!req) - return CS_UNSUPPORTED_MODE; - c = CONFIG(handle); - if (c->state & CONFIG_LOCKED) - return CS_CONFIGURATION_LOCKED; - if (c->state & CONFIG_IO_REQ) - return CS_IN_USE; - if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) - return CS_BAD_ATTRIBUTE; - if ((req->NumPorts2 > 0) && - (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) - return CS_BAD_ATTRIBUTE; - - if (alloc_io_space(s, req->Attributes1, &req->BasePort1, - req->NumPorts1, req->IOAddrLines)) - return CS_IN_USE; - - if (req->NumPorts2) { - if (alloc_io_space(s, req->Attributes2, &req->BasePort2, - req->NumPorts2, req->IOAddrLines)) { - release_io_space(s, req->BasePort1, req->NumPorts1); - return CS_IN_USE; - } - } - - c->io = *req; - c->state |= CONFIG_IO_REQ; - handle->state |= CLIENT_IO_REQ; - return CS_SUCCESS; -} /* request_io */ - -/*====================================================================== - - Request_irq() reserves an irq for this client. - - Also, since Linux only reserves irq's when they are actually - hooked, we don't guarantee that an irq will still be available - when the configuration is locked. Now that I think about it, - there might be a way to fix this using a dummy handler. - -======================================================================*/ - -#ifdef CONFIG_PCMCIA_PROBE -static irqreturn_t test_action(int cpl, void *dev_id, struct pt_regs *regs) -{ - return IRQ_NONE; -} -#endif - -int pcmcia_request_irq(client_handle_t handle, irq_req_t *req) -{ - struct pcmcia_socket *s; - config_t *c; - int ret = CS_IN_USE, irq = 0; - struct pcmcia_device *p_dev = handle_to_pdev(handle); - - if (CHECK_HANDLE(handle)) - return CS_BAD_HANDLE; - s = SOCKET(handle); - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - c = CONFIG(handle); - if (c->state & CONFIG_LOCKED) - return CS_CONFIGURATION_LOCKED; - if (c->state & CONFIG_IRQ_REQ) - return CS_IN_USE; - -#ifdef CONFIG_PCMCIA_PROBE - if (s->irq.AssignedIRQ != 0) { - /* If the interrupt is already assigned, it must be the same */ - irq = s->irq.AssignedIRQ; - } else { - int try; - u32 mask = s->irq_mask; - void *data = NULL; - - for (try = 0; try < 64; try++) { - irq = try % 32; - - /* marked as available by driver, and not blocked by userspace? */ - if (!((mask >> irq) & 1)) - continue; - - /* avoid an IRQ which is already used by a PCMCIA card */ - if ((try < 32) && pcmcia_used_irq[irq]) - continue; - - /* register the correct driver, if possible, of check whether - * registering a dummy handle works, i.e. if the IRQ isn't - * marked as used by the kernel resource management core */ - ret = request_irq(irq, - (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action, - ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || - (s->functions > 1) || - (irq == s->pci_irq)) ? SA_SHIRQ : 0, - p_dev->dev.bus_id, - (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data); - if (!ret) { - if (!(req->Attributes & IRQ_HANDLE_PRESENT)) - free_irq(irq, data); - break; - } - } - } -#endif - if (ret) { - if (!s->pci_irq) - return ret; - irq = s->pci_irq; - } - - if (ret && req->Attributes & IRQ_HANDLE_PRESENT) { - if (request_irq(irq, req->Handler, - ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || - (s->functions > 1) || - (irq == s->pci_irq)) ? SA_SHIRQ : 0, - p_dev->dev.bus_id, req->Instance)) - return CS_IN_USE; - } - - c->irq.Attributes = req->Attributes; - s->irq.AssignedIRQ = req->AssignedIRQ = irq; - s->irq.Config++; - - c->state |= CONFIG_IRQ_REQ; - handle->state |= CLIENT_IRQ_REQ; - -#ifdef CONFIG_PCMCIA_PROBE - pcmcia_used_irq[irq]++; -#endif - - return CS_SUCCESS; -} /* pcmcia_request_irq */ - -/*====================================================================== - - Request_window() establishes a mapping between card memory space - and system memory space. - -======================================================================*/ - -int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle_t *wh) -{ - struct pcmcia_socket *s; - window_t *win; - u_long align; - int w; - - if (CHECK_HANDLE(*handle)) - return CS_BAD_HANDLE; - s = (*handle)->Socket; - if (!(s->state & SOCKET_PRESENT)) - return CS_NO_CARD; - if (req->Attributes & (WIN_PAGED | WIN_SHARED)) - return CS_BAD_ATTRIBUTE; - - /* Window size defaults to smallest available */ - if (req->Size == 0) - req->Size = s->map_size; - align = (((s->features & SS_CAP_MEM_ALIGN) || - (req->Attributes & WIN_STRICT_ALIGN)) ? - req->Size : s->map_size); - if (req->Size & (s->map_size-1)) - return CS_BAD_SIZE; - if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || - (req->Base & (align-1))) - return CS_BAD_BASE; - if (req->Base) - align = 0; - - /* Allocate system memory window */ - for (w = 0; w < MAX_WIN; w++) - if (!(s->state & SOCKET_WIN_REQ(w))) break; - if (w == MAX_WIN) - return CS_OUT_OF_RESOURCE; - - win = &s->win[w]; - win->magic = WINDOW_MAGIC; - win->index = w; - win->handle = *handle; - win->sock = s; - - if (!(s->features & SS_CAP_STATIC_MAP)) { - win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align, - (req->Attributes & WIN_MAP_BELOW_1MB), s); - if (!win->ctl.res) - return CS_IN_USE; - } - (*handle)->state |= CLIENT_WIN_REQ(w); - - /* Configure the socket controller */ - win->ctl.map = w+1; - win->ctl.flags = 0; - win->ctl.speed = req->AccessSpeed; - if (req->Attributes & WIN_MEMORY_TYPE) - win->ctl.flags |= MAP_ATTRIB; - if (req->Attributes & WIN_ENABLE) - win->ctl.flags |= MAP_ACTIVE; - if (req->Attributes & WIN_DATA_WIDTH_16) - win->ctl.flags |= MAP_16BIT; - if (req->Attributes & WIN_USE_WAIT) - win->ctl.flags |= MAP_USE_WAIT; - win->ctl.card_start = 0; - if (s->ops->set_mem_map(s, &win->ctl) != 0) - return CS_BAD_ARGS; - s->state |= SOCKET_WIN_REQ(w); - - /* Return window handle */ - if (s->features & SS_CAP_STATIC_MAP) { - req->Base = win->ctl.static_start; - } else { - req->Base = win->ctl.res->start; - } - *wh = win; - - return CS_SUCCESS; -} /* request_window */ /*====================================================================== @@ -1888,20 +965,8 @@ static int pcmcia_socket_hotplug(struct class_device *dev, char **envp, ======================================================================*/ /* in alpha order */ EXPORT_SYMBOL(pcmcia_eject_card); -EXPORT_SYMBOL(pcmcia_get_card_services_info); -EXPORT_SYMBOL(pcmcia_get_mem_page); EXPORT_SYMBOL(pcmcia_insert_card); -EXPORT_SYMBOL(pcmcia_map_mem_page); -EXPORT_SYMBOL(pcmcia_modify_configuration); -EXPORT_SYMBOL(pcmcia_release_configuration); -EXPORT_SYMBOL(pcmcia_release_io); -EXPORT_SYMBOL(pcmcia_release_irq); -EXPORT_SYMBOL(pcmcia_release_window); EXPORT_SYMBOL(pcmcia_replace_cis); -EXPORT_SYMBOL(pcmcia_request_configuration); -EXPORT_SYMBOL(pcmcia_request_io); -EXPORT_SYMBOL(pcmcia_request_irq); -EXPORT_SYMBOL(pcmcia_request_window); EXPORT_SYMBOL(pcmcia_resume_card); EXPORT_SYMBOL(pcmcia_suspend_card); diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c new file mode 100644 index 00000000000..cf66b997894 --- /dev/null +++ b/drivers/pcmcia/pcmcia_resource.c @@ -0,0 +1,989 @@ +/* + * PCMCIA 16-bit resource management functions + * + * The initial developer of the original code is David A. Hinds + * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds + * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + * + * Copyright (C) 1999 David A. Hinds + * Copyright (C) 2004-2005 Dominik Brodowski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/device.h> + +#define IN_CARD_SERVICES +#include <pcmcia/version.h> +#include <pcmcia/cs_types.h> +#include <pcmcia/ss.h> +#include <pcmcia/cs.h> +#include <pcmcia/bulkmem.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ds.h> + +#include "cs_internal.h" +#include "ds_internal.h" + + +static const char *release = "Linux Kernel Card Services"; + +/* Access speed for IO windows */ +static int io_speed = 0; +module_param(io_speed, int, 0444); + + +#ifdef CONFIG_PCMCIA_PROBE +/* mask of IRQs already reserved by other cards, we should avoid using them */ +static u8 pcmcia_used_irq[NR_IRQS]; +#endif + + +#ifdef DEBUG +extern int ds_pc_debug; +#define cs_socket_name(skt) ((skt)->dev.class_id) + +#define ds_dbg(skt, lvl, fmt, arg...) do { \ + if (ds_pc_debug >= lvl) \ + printk(KERN_DEBUG "pcmcia_resource: %s: " fmt, \ + cs_socket_name(skt) , ## arg); \ +} while (0) +#else +#define ds_dbg(lvl, fmt, arg...) do { } while (0) +#endif + + + +/** alloc_io_space + * + * Special stuff for managing IO windows, because they are scarce + */ + +static int alloc_io_space(struct pcmcia_socket *s, u_int attr, ioaddr_t *base, + ioaddr_t num, u_int lines) +{ + int i; + kio_addr_t try, align; + + align = (*base) ? (lines ? 1<<lines : 0) : 1; + if (align && (align < num)) { + if (*base) { + ds_dbg(s, 0, "odd IO request: num %#x align %#lx\n", + num, align); + align = 0; + } else + while (align && (align < num)) align <<= 1; + } + if (*base & ~(align-1)) { + ds_dbg(s, 0, "odd IO request: base %#x align %#lx\n", + *base, align); + align = 0; + } + if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { + *base = s->io_offset | (*base & 0x0fff); + return 0; + } + /* Check for an already-allocated window that must conflict with + * what was asked for. It is a hack because it does not catch all + * potential conflicts, just the most obvious ones. + */ + for (i = 0; i < MAX_IO_WIN; i++) + if ((s->io[i].NumPorts != 0) && + ((s->io[i].BasePort & (align-1)) == *base)) + return 1; + for (i = 0; i < MAX_IO_WIN; i++) { + if (s->io[i].NumPorts == 0) { + s->io[i].res = pcmcia_find_io_region(*base, num, align, s); + if (s->io[i].res) { + s->io[i].Attributes = attr; + s->io[i].BasePort = *base = s->io[i].res->start; + s->io[i].NumPorts = s->io[i].InUse = num; + break; + } else + return 1; + } else if (s->io[i].Attributes != attr) + continue; + /* Try to extend top of window */ + try = s->io[i].BasePort + s->io[i].NumPorts; + if ((*base == 0) || (*base == try)) + if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, + s->io[i].res->end + num, s) == 0) { + *base = try; + s->io[i].NumPorts += num; + s->io[i].InUse += num; + break; + } + /* Try to extend bottom of window */ + try = s->io[i].BasePort - num; + if ((*base == 0) || (*base == try)) + if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, + s->io[i].res->end, s) == 0) { + s->io[i].BasePort = *base = try; + s->io[i].NumPorts += num; + s->io[i].InUse += num; + break; + } + } + return (i == MAX_IO_WIN); +} /* alloc_io_space */ + + +static void release_io_space(struct pcmcia_socket *s, ioaddr_t base, + ioaddr_t num) +{ + int i; + + for (i = 0; i < MAX_IO_WIN; i++) { + if ((s->io[i].BasePort <= base) && + (s->io[i].BasePort+s->io[i].NumPorts >= base+num)) { + s->io[i].InUse -= num; + /* Free the window if no one else is using it */ + if (s->io[i].InUse == 0) { + s->io[i].NumPorts = 0; + release_resource(s->io[i].res); + kfree(s->io[i].res); + s->io[i].res = NULL; + } + } + } +} /* release_io_space */ + + +/** pccard_access_configuration_register + * + * Access_configuration_register() reads and writes configuration + * registers in attribute memory. Memory window 0 is reserved for + * this and the tuple reading services. + */ + +int pccard_access_configuration_register(struct pcmcia_socket *s, + unsigned int function, + conf_reg_t *reg) +{ + config_t *c; + int addr; + u_char val; + + if (!s || !s->config) + return CS_NO_CARD; + + c = &s->config[function]; + + if (c == NULL) + return CS_NO_CARD; + + if (!(c->state & CONFIG_LOCKED)) + return CS_CONFIGURATION_LOCKED; + + addr = (c->ConfigBase + reg->Offset) >> 1; + + switch (reg->Action) { + case CS_READ: + pcmcia_read_cis_mem(s, 1, addr, 1, &val); + reg->Value = val; + break; + case CS_WRITE: + val = reg->Value; + pcmcia_write_cis_mem(s, 1, addr, 1, &val); + break; + default: + return CS_BAD_ARGS; + break; + } + return CS_SUCCESS; +} /* pccard_access_configuration_register */ +EXPORT_SYMBOL(pccard_access_configuration_register); + + +int pccard_get_configuration_info(struct pcmcia_socket *s, + unsigned int function, + config_info_t *config) +{ + config_t *c; + + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + + config->Function = function; + +#ifdef CONFIG_CARDBUS + if (s->state & SOCKET_CARDBUS) { + memset(config, 0, sizeof(config_info_t)); + config->Vcc = s->socket.Vcc; + config->Vpp1 = config->Vpp2 = s->socket.Vpp; + config->Option = s->cb_dev->subordinate->number; + if (s->state & SOCKET_CARDBUS_CONFIG) { + config->Attributes = CONF_VALID_CLIENT; + config->IntType = INT_CARDBUS; + config->AssignedIRQ = s->irq.AssignedIRQ; + if (config->AssignedIRQ) + config->Attributes |= CONF_ENABLE_IRQ; + config->BasePort1 = s->io[0].BasePort; + config->NumPorts1 = s->io[0].NumPorts; + } + return CS_SUCCESS; + } +#endif + + c = (s->config != NULL) ? &s->config[function] : NULL; + + if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { + config->Attributes = 0; + config->Vcc = s->socket.Vcc; + config->Vpp1 = config->Vpp2 = s->socket.Vpp; + return CS_SUCCESS; + } + + /* !!! This is a hack !!! */ + memcpy(&config->Attributes, &c->Attributes, sizeof(config_t)); + config->Attributes |= CONF_VALID_CLIENT; + config->CardValues = c->CardValues; + config->IRQAttributes = c->irq.Attributes; + config->AssignedIRQ = s->irq.AssignedIRQ; + config->BasePort1 = c->io.BasePort1; + config->NumPorts1 = c->io.NumPorts1; + config->Attributes1 = c->io.Attributes1; + config->BasePort2 = c->io.BasePort2; + config->NumPorts2 = c->io.NumPorts2; + config->Attributes2 = c->io.Attributes2; + config->IOAddrLines = c->io.IOAddrLines; + + return CS_SUCCESS; +} /* pccard_get_configuration_info */ +EXPORT_SYMBOL(pccard_get_configuration_info); + + +/** pcmcia_get_card_services_info + * + * Return information about this version of Card Services + */ + +int pcmcia_get_card_services_info(servinfo_t *info) +{ + unsigned int socket_count = 0; + struct list_head *tmp; + info->Signature[0] = 'C'; + info->Signature[1] = 'S'; + down_read(&pcmcia_socket_list_rwsem); + list_for_each(tmp, &pcmcia_socket_list) + socket_count++; + up_read(&pcmcia_socket_list_rwsem); + info->Count = socket_count; + info->Revision = CS_RELEASE_CODE; + info->CSLevel = 0x0210; + info->VendorString = (char *)release; + return CS_SUCCESS; +} /* get_card_services_info */ +EXPORT_SYMBOL(pcmcia_get_card_services_info); + + +/** pcmcia_get_window + */ +int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, + int idx, win_req_t *req) +{ + window_t *win; + int w; + + if (!s || !(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + for (w = idx; w < MAX_WIN; w++) + if (s->state & SOCKET_WIN_REQ(w)) + break; + if (w == MAX_WIN) + return CS_NO_MORE_ITEMS; + win = &s->win[w]; + req->Base = win->ctl.res->start; + req->Size = win->ctl.res->end - win->ctl.res->start + 1; + req->AccessSpeed = win->ctl.speed; + req->Attributes = 0; + if (win->ctl.flags & MAP_ATTRIB) + req->Attributes |= WIN_MEMORY_TYPE_AM; + if (win->ctl.flags & MAP_ACTIVE) + req->Attributes |= WIN_ENABLE; + if (win->ctl.flags & MAP_16BIT) + req->Attributes |= WIN_DATA_WIDTH_16; + if (win->ctl.flags & MAP_USE_WAIT) + req->Attributes |= WIN_USE_WAIT; + *handle = win; + return CS_SUCCESS; +} /* pcmcia_get_window */ +EXPORT_SYMBOL(pcmcia_get_window); + + +/** pccard_get_status + * + * Get the current socket state bits. We don't support the latched + * SocketState yet: I haven't seen any point for it. + */ + +int pccard_get_status(struct pcmcia_socket *s, unsigned int function, + cs_status_t *status) +{ + config_t *c; + int val; + + s->ops->get_status(s, &val); + status->CardState = status->SocketState = 0; + status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0; + status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0; + status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0; + status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0; + if (s->state & SOCKET_SUSPEND) + status->CardState |= CS_EVENT_PM_SUSPEND; + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + + c = (s->config != NULL) ? &s->config[function] : NULL; + if ((c != NULL) && (c->state & CONFIG_LOCKED) && + (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { + u_char reg; + if (c->Present & PRESENT_PIN_REPLACE) { + pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); + status->CardState |= + (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; + status->CardState |= + (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0; + status->CardState |= + (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0; + status->CardState |= + (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0; + } else { + /* No PRR? Then assume we're always ready */ + status->CardState |= CS_EVENT_READY_CHANGE; + } + if (c->Present & PRESENT_EXT_STATUS) { + pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); + status->CardState |= + (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; + } + return CS_SUCCESS; + } + status->CardState |= + (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0; + status->CardState |= + (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0; + status->CardState |= + (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0; + status->CardState |= + (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0; + return CS_SUCCESS; +} /* pccard_get_status */ +EXPORT_SYMBOL(pccard_get_status); + + +/** pcmcia_get_mem_page + * + * Change the card address of an already open memory window. + */ +int pcmcia_get_mem_page(window_handle_t win, memreq_t *req) +{ + if ((win == NULL) || (win->magic != WINDOW_MAGIC)) + return CS_BAD_HANDLE; + req->Page = 0; + req->CardOffset = win->ctl.card_start; + return CS_SUCCESS; +} /* pcmcia_get_mem_page */ +EXPORT_SYMBOL(pcmcia_get_mem_page); + + +int pcmcia_map_mem_page(window_handle_t win, memreq_t *req) +{ + struct pcmcia_socket *s; + if ((win == NULL) || (win->magic != WINDOW_MAGIC)) + return CS_BAD_HANDLE; + if (req->Page != 0) + return CS_BAD_PAGE; + s = win->sock; + win->ctl.card_start = req->CardOffset; + if (s->ops->set_mem_map(s, &win->ctl) != 0) + return CS_BAD_OFFSET; + return CS_SUCCESS; +} /* pcmcia_map_mem_page */ +EXPORT_SYMBOL(pcmcia_map_mem_page); + + +/** pcmcia_modify_configuration + * + * Modify a locked socket configuration + */ +int pcmcia_modify_configuration(client_handle_t handle, + modconf_t *mod) +{ + struct pcmcia_socket *s; + config_t *c; + + if (CHECK_HANDLE(handle)) + return CS_BAD_HANDLE; + s = SOCKET(handle); + c = CONFIG(handle); + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + if (!(c->state & CONFIG_LOCKED)) + return CS_CONFIGURATION_LOCKED; + + if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { + if (mod->Attributes & CONF_ENABLE_IRQ) { + c->Attributes |= CONF_ENABLE_IRQ; + s->socket.io_irq = s->irq.AssignedIRQ; + } else { + c->Attributes &= ~CONF_ENABLE_IRQ; + s->socket.io_irq = 0; + } + s->ops->set_socket(s, &s->socket); + } + + if (mod->Attributes & CONF_VCC_CHANGE_VALID) + return CS_BAD_VCC; + + /* We only allow changing Vpp1 and Vpp2 to the same value */ + if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && + (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { + if (mod->Vpp1 != mod->Vpp2) + return CS_BAD_VPP; + c->Vpp1 = c->Vpp2 = s->socket.Vpp = mod->Vpp1; + if (s->ops->set_socket(s, &s->socket)) + return CS_BAD_VPP; + } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || + (mod->Attributes & CONF_VPP2_CHANGE_VALID)) + return CS_BAD_VPP; + + return CS_SUCCESS; +} /* modify_configuration */ +EXPORT_SYMBOL(pcmcia_modify_configuration); + + +int pcmcia_release_configuration(client_handle_t handle) +{ + pccard_io_map io = { 0, 0, 0, 0, 1 }; + struct pcmcia_socket *s; + int i; + + if (CHECK_HANDLE(handle) || + !(handle->state & CLIENT_CONFIG_LOCKED)) + return CS_BAD_HANDLE; + handle->state &= ~CLIENT_CONFIG_LOCKED; + s = SOCKET(handle); + +#ifdef CONFIG_CARDBUS + if (handle->state & CLIENT_CARDBUS) + return CS_SUCCESS; +#endif + + if (!(handle->state & CLIENT_STALE)) { + config_t *c = CONFIG(handle); + if (--(s->lock_count) == 0) { + s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ + s->socket.Vpp = 0; + s->socket.io_irq = 0; + s->ops->set_socket(s, &s->socket); + } + if (c->state & CONFIG_IO_REQ) + for (i = 0; i < MAX_IO_WIN; i++) { + if (s->io[i].NumPorts == 0) + continue; + s->io[i].Config--; + if (s->io[i].Config != 0) + continue; + io.map = i; + s->ops->set_io_map(s, &io); + } + c->state &= ~CONFIG_LOCKED; + } + + return CS_SUCCESS; +} /* pcmcia_release_configuration */ +EXPORT_SYMBOL(pcmcia_release_configuration); + + +/** pcmcia_release_io + * + * Release_io() releases the I/O ranges allocated by a client. This + * may be invoked some time after a card ejection has already dumped + * the actual socket configuration, so if the client is "stale", we + * don't bother checking the port ranges against the current socket + * values. + */ +int pcmcia_release_io(client_handle_t handle, io_req_t *req) +{ + struct pcmcia_socket *s; + + if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IO_REQ)) + return CS_BAD_HANDLE; + handle->state &= ~CLIENT_IO_REQ; + s = SOCKET(handle); + +#ifdef CONFIG_CARDBUS + if (handle->state & CLIENT_CARDBUS) + return CS_SUCCESS; +#endif + + if (!(handle->state & CLIENT_STALE)) { + config_t *c = CONFIG(handle); + if (c->state & CONFIG_LOCKED) + return CS_CONFIGURATION_LOCKED; + if ((c->io.BasePort1 != req->BasePort1) || + (c->io.NumPorts1 != req->NumPorts1) || + (c->io.BasePort2 != req->BasePort2) || + (c->io.NumPorts2 != req->NumPorts2)) + return CS_BAD_ARGS; + c->state &= ~CONFIG_IO_REQ; + } + + release_io_space(s, req->BasePort1, req->NumPorts1); + if (req->NumPorts2) + release_io_space(s, req->BasePort2, req->NumPorts2); + + return CS_SUCCESS; +} /* pcmcia_release_io */ +EXPORT_SYMBOL(pcmcia_release_io); + + +int pcmcia_release_irq(client_handle_t handle, irq_req_t *req) +{ + struct pcmcia_socket *s; + if (CHECK_HANDLE(handle) || !(handle->state & CLIENT_IRQ_REQ)) + return CS_BAD_HANDLE; + handle->state &= ~CLIENT_IRQ_REQ; + s = SOCKET(handle); + + if (!(handle->state & CLIENT_STALE)) { + config_t *c = CONFIG(handle); + if (c->state & CONFIG_LOCKED) + return CS_CONFIGURATION_LOCKED; + if (c->irq.Attributes != req->Attributes) + return CS_BAD_ATTRIBUTE; + if (s->irq.AssignedIRQ != req->AssignedIRQ) + return CS_BAD_IRQ; + if (--s->irq.Config == 0) { + c->state &= ~CONFIG_IRQ_REQ; + s->irq.AssignedIRQ = 0; + } + } + + if (req->Attributes & IRQ_HANDLE_PRESENT) { + free_irq(req->AssignedIRQ, req->Instance); + } + +#ifdef CONFIG_PCMCIA_PROBE + pcmcia_used_irq[req->AssignedIRQ]--; +#endif + + return CS_SUCCESS; +} /* pcmcia_release_irq */ +EXPORT_SYMBOL(pcmcia_release_irq); + + +int pcmcia_release_window(window_handle_t win) +{ + struct pcmcia_socket *s; + + if ((win == NULL) || (win->magic != WINDOW_MAGIC)) + return CS_BAD_HANDLE; + s = win->sock; + if (!(win->handle->state & CLIENT_WIN_REQ(win->index))) + return CS_BAD_HANDLE; + + /* Shut down memory window */ + win->ctl.flags &= ~MAP_ACTIVE; + s->ops->set_mem_map(s, &win->ctl); + s->state &= ~SOCKET_WIN_REQ(win->index); + + /* Release system memory */ + if (win->ctl.res) { + release_resource(win->ctl.res); + kfree(win->ctl.res); + win->ctl.res = NULL; + } + win->handle->state &= ~CLIENT_WIN_REQ(win->index); + + win->magic = 0; + + return CS_SUCCESS; +} /* pcmcia_release_window */ +EXPORT_SYMBOL(pcmcia_release_window); + + +int pcmcia_request_configuration(client_handle_t handle, + config_req_t *req) +{ + int i; + u_int base; + struct pcmcia_socket *s; + config_t *c; + pccard_io_map iomap; + + if (CHECK_HANDLE(handle)) + return CS_BAD_HANDLE; + s = SOCKET(handle); + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + +#ifdef CONFIG_CARDBUS + if (handle->state & CLIENT_CARDBUS) + return CS_UNSUPPORTED_MODE; +#endif + + if (req->IntType & INT_CARDBUS) + return CS_UNSUPPORTED_MODE; + c = CONFIG(handle); + if (c->state & CONFIG_LOCKED) + return CS_CONFIGURATION_LOCKED; + + /* Do power control. We don't allow changes in Vcc. */ + if (s->socket.Vcc != req->Vcc) + return CS_BAD_VCC; + if (req->Vpp1 != req->Vpp2) + return CS_BAD_VPP; + s->socket.Vpp = req->Vpp1; + if (s->ops->set_socket(s, &s->socket)) + return CS_BAD_VPP; + + c->Vcc = req->Vcc; c->Vpp1 = c->Vpp2 = req->Vpp1; + + /* Pick memory or I/O card, DMA mode, interrupt */ + c->IntType = req->IntType; + c->Attributes = req->Attributes; + if (req->IntType & INT_MEMORY_AND_IO) + s->socket.flags |= SS_IOCARD; + if (req->IntType & INT_ZOOMED_VIDEO) + s->socket.flags |= SS_ZVCARD | SS_IOCARD; + if (req->Attributes & CONF_ENABLE_DMA) + s->socket.flags |= SS_DMA_MODE; + if (req->Attributes & CONF_ENABLE_SPKR) + s->socket.flags |= SS_SPKR_ENA; + if (req->Attributes & CONF_ENABLE_IRQ) + s->socket.io_irq = s->irq.AssignedIRQ; + else + s->socket.io_irq = 0; + s->ops->set_socket(s, &s->socket); + s->lock_count++; + + /* Set up CIS configuration registers */ + base = c->ConfigBase = req->ConfigBase; + c->Present = c->CardValues = req->Present; + if (req->Present & PRESENT_COPY) { + c->Copy = req->Copy; + pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); + } + if (req->Present & PRESENT_OPTION) { + if (s->functions == 1) { + c->Option = req->ConfigIndex & COR_CONFIG_MASK; + } else { + c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; + c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; + if (req->Present & PRESENT_IOBASE_0) + c->Option |= COR_ADDR_DECODE; + } + if (c->state & CONFIG_IRQ_REQ) + if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) + c->Option |= COR_LEVEL_REQ; + pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); + mdelay(40); + } + if (req->Present & PRESENT_STATUS) { + c->Status = req->Status; + pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); + } + if (req->Present & PRESENT_PIN_REPLACE) { + c->Pin = req->Pin; + pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); + } + if (req->Present & PRESENT_EXT_STATUS) { + c->ExtStatus = req->ExtStatus; + pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); + } + if (req->Present & PRESENT_IOBASE_0) { + u_char b = c->io.BasePort1 & 0xff; + pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); + b = (c->io.BasePort1 >> 8) & 0xff; + pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); + } + if (req->Present & PRESENT_IOSIZE) { + u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; + pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); + } + + /* Configure I/O windows */ + if (c->state & CONFIG_IO_REQ) { + iomap.speed = io_speed; + for (i = 0; i < MAX_IO_WIN; i++) + if (s->io[i].NumPorts != 0) { + iomap.map = i; + iomap.flags = MAP_ACTIVE; + switch (s->io[i].Attributes & IO_DATA_PATH_WIDTH) { + case IO_DATA_PATH_WIDTH_16: + iomap.flags |= MAP_16BIT; break; + case IO_DATA_PATH_WIDTH_AUTO: + iomap.flags |= MAP_AUTOSZ; break; + default: + break; + } + iomap.start = s->io[i].BasePort; + iomap.stop = iomap.start + s->io[i].NumPorts - 1; + s->ops->set_io_map(s, &iomap); + s->io[i].Config++; + } + } + + c->state |= CONFIG_LOCKED; + handle->state |= CLIENT_CONFIG_LOCKED; + return CS_SUCCESS; +} /* pcmcia_request_configuration */ +EXPORT_SYMBOL(pcmcia_request_configuration); + + +/** pcmcia_request_io + * + * Request_io() reserves ranges of port addresses for a socket. + * I have not implemented range sharing or alias addressing. + */ +int pcmcia_request_io(client_handle_t handle, io_req_t *req) +{ + struct pcmcia_socket *s; + config_t *c; + + if (CHECK_HANDLE(handle)) + return CS_BAD_HANDLE; + s = SOCKET(handle); + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + + if (handle->state & CLIENT_CARDBUS) { +#ifdef CONFIG_CARDBUS + handle->state |= CLIENT_IO_REQ; + return CS_SUCCESS; +#else + return CS_UNSUPPORTED_FUNCTION; +#endif + } + + if (!req) + return CS_UNSUPPORTED_MODE; + c = CONFIG(handle); + if (c->state & CONFIG_LOCKED) + return CS_CONFIGURATION_LOCKED; + if (c->state & CONFIG_IO_REQ) + return CS_IN_USE; + if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) + return CS_BAD_ATTRIBUTE; + if ((req->NumPorts2 > 0) && + (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) + return CS_BAD_ATTRIBUTE; + + if (alloc_io_space(s, req->Attributes1, &req->BasePort1, + req->NumPorts1, req->IOAddrLines)) + return CS_IN_USE; + + if (req->NumPorts2) { + if (alloc_io_space(s, req->Attributes2, &req->BasePort2, + req->NumPorts2, req->IOAddrLines)) { + release_io_space(s, req->BasePort1, req->NumPorts1); + return CS_IN_USE; + } + } + + c->io = *req; + c->state |= CONFIG_IO_REQ; + handle->state |= CLIENT_IO_REQ; + return CS_SUCCESS; +} /* pcmcia_request_io */ +EXPORT_SYMBOL(pcmcia_request_io); + + +/** pcmcia_request_irq + * + * Request_irq() reserves an irq for this client. + * + * Also, since Linux only reserves irq's when they are actually + * hooked, we don't guarantee that an irq will still be available + * when the configuration is locked. Now that I think about it, + * there might be a way to fix this using a dummy handler. + */ + +#ifdef CONFIG_PCMCIA_PROBE +static irqreturn_t test_action(int cpl, void *dev_id, struct pt_regs *regs) +{ + return IRQ_NONE; +} +#endif + +int pcmcia_request_irq(client_handle_t handle, irq_req_t *req) +{ + struct pcmcia_socket *s; + config_t *c; + int ret = CS_IN_USE, irq = 0; + struct pcmcia_device *p_dev = handle_to_pdev(handle); + + if (CHECK_HANDLE(handle)) + return CS_BAD_HANDLE; + s = SOCKET(handle); + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + c = CONFIG(handle); + if (c->state & CONFIG_LOCKED) + return CS_CONFIGURATION_LOCKED; + if (c->state & CONFIG_IRQ_REQ) + return CS_IN_USE; + +#ifdef CONFIG_PCMCIA_PROBE + if (s->irq.AssignedIRQ != 0) { + /* If the interrupt is already assigned, it must be the same */ + irq = s->irq.AssignedIRQ; + } else { + int try; + u32 mask = s->irq_mask; + void *data = NULL; + + for (try = 0; try < 64; try++) { + irq = try % 32; + + /* marked as available by driver, and not blocked by userspace? */ + if (!((mask >> irq) & 1)) + continue; + + /* avoid an IRQ which is already used by a PCMCIA card */ + if ((try < 32) && pcmcia_used_irq[irq]) + continue; + + /* register the correct driver, if possible, of check whether + * registering a dummy handle works, i.e. if the IRQ isn't + * marked as used by the kernel resource management core */ + ret = request_irq(irq, + (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action, + ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || + (s->functions > 1) || + (irq == s->pci_irq)) ? SA_SHIRQ : 0, + p_dev->dev.bus_id, + (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data); + if (!ret) { + if (!(req->Attributes & IRQ_HANDLE_PRESENT)) + free_irq(irq, data); + break; + } + } + } +#endif + if (ret) { + if (!s->pci_irq) + return ret; + irq = s->pci_irq; + } + + if (ret && req->Attributes & IRQ_HANDLE_PRESENT) { + if (request_irq(irq, req->Handler, + ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || + (s->functions > 1) || + (irq == s->pci_irq)) ? SA_SHIRQ : 0, + p_dev->dev.bus_id, req->Instance)) + return CS_IN_USE; + } + + c->irq.Attributes = req->Attributes; + s->irq.AssignedIRQ = req->AssignedIRQ = irq; + s->irq.Config++; + + c->state |= CONFIG_IRQ_REQ; + handle->state |= CLIENT_IRQ_REQ; + +#ifdef CONFIG_PCMCIA_PROBE + pcmcia_used_irq[irq]++; +#endif + + return CS_SUCCESS; +} /* pcmcia_request_irq */ +EXPORT_SYMBOL(pcmcia_request_irq); + + +/** pcmcia_request_window + * + * Request_window() establishes a mapping between card memory space + * and system memory space. + */ +int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle_t *wh) +{ + struct pcmcia_socket *s; + window_t *win; + u_long align; + int w; + + if (CHECK_HANDLE(*handle)) + return CS_BAD_HANDLE; + s = (*handle)->Socket; + if (!(s->state & SOCKET_PRESENT)) + return CS_NO_CARD; + if (req->Attributes & (WIN_PAGED | WIN_SHARED)) + return CS_BAD_ATTRIBUTE; + + /* Window size defaults to smallest available */ + if (req->Size == 0) + req->Size = s->map_size; + align = (((s->features & SS_CAP_MEM_ALIGN) || + (req->Attributes & WIN_STRICT_ALIGN)) ? + req->Size : s->map_size); + if (req->Size & (s->map_size-1)) + return CS_BAD_SIZE; + if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || + (req->Base & (align-1))) + return CS_BAD_BASE; + if (req->Base) + align = 0; + + /* Allocate system memory window */ + for (w = 0; w < MAX_WIN; w++) + if (!(s->state & SOCKET_WIN_REQ(w))) break; + if (w == MAX_WIN) + return CS_OUT_OF_RESOURCE; + + win = &s->win[w]; + win->magic = WINDOW_MAGIC; + win->index = w; + win->handle = *handle; + win->sock = s; + + if (!(s->features & SS_CAP_STATIC_MAP)) { + win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align, + (req->Attributes & WIN_MAP_BELOW_1MB), s); + if (!win->ctl.res) + return CS_IN_USE; + } + (*handle)->state |= CLIENT_WIN_REQ(w); + + /* Configure the socket controller */ + win->ctl.map = w+1; + win->ctl.flags = 0; + win->ctl.speed = req->AccessSpeed; + if (req->Attributes & WIN_MEMORY_TYPE) + win->ctl.flags |= MAP_ATTRIB; + if (req->Attributes & WIN_ENABLE) + win->ctl.flags |= MAP_ACTIVE; + if (req->Attributes & WIN_DATA_WIDTH_16) + win->ctl.flags |= MAP_16BIT; + if (req->Attributes & WIN_USE_WAIT) + win->ctl.flags |= MAP_USE_WAIT; + win->ctl.card_start = 0; + if (s->ops->set_mem_map(s, &win->ctl) != 0) + return CS_BAD_ARGS; + s->state |= SOCKET_WIN_REQ(w); + + /* Return window handle */ + if (s->features & SS_CAP_STATIC_MAP) { + req->Base = win->ctl.static_start; + } else { + req->Base = win->ctl.res->start; + } + *wh = win; + + return CS_SUCCESS; +} /* pcmcia_request_window */ +EXPORT_SYMBOL(pcmcia_request_window); diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c index fca10a1a56d..0668384ebc8 100644 --- a/drivers/pcmcia/rsrc_mgr.c +++ b/drivers/pcmcia/rsrc_mgr.c @@ -112,6 +112,7 @@ int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start, return s->resource_ops->adjust_io_region(res, r_start, r_end, s); return -ENOMEM; } +EXPORT_SYMBOL(pcmcia_adjust_io_region); struct resource *pcmcia_find_io_region(unsigned long base, int num, unsigned long align, struct pcmcia_socket *s) @@ -120,6 +121,7 @@ struct resource *pcmcia_find_io_region(unsigned long base, int num, return s->resource_ops->find_io(base, num, align, s); return NULL; } +EXPORT_SYMBOL(pcmcia_find_io_region); struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, int low, struct pcmcia_socket *s) @@ -128,6 +130,7 @@ struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, return s->resource_ops->find_mem(base, num, align, low, s); return NULL; } +EXPORT_SYMBOL(pcmcia_find_mem_region); void release_resource_db(struct pcmcia_socket *s) { |