*
*/
-#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>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
-#define IN_CARD_SERVICES
#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"
/* Access speed for IO windows */
-static int io_speed = 0;
+static int io_speed;
module_param(io_speed, int, 0444);
#ifdef CONFIG_PCMCIA_PROBE
+#include <asm/irq.h>
/* mask of IRQs already reserved by other cards, we should avoid using them */
static u8 pcmcia_used_irq[NR_IRQS];
#endif
+static int pcmcia_adjust_io_region(struct resource *res, unsigned long start,
+ unsigned long end, struct pcmcia_socket *s)
+{
+ if (s->resource_ops->adjust_io_region)
+ return s->resource_ops->adjust_io_region(res, start, end, s);
+ return -ENOMEM;
+}
-#ifdef DEBUG
-extern int ds_pc_debug;
-#define cs_socket_name(skt) ((skt)->dev.class_id)
+static struct resource *pcmcia_find_io_region(unsigned long base, int num,
+ unsigned long align,
+ struct pcmcia_socket *s)
+{
+ if (s->resource_ops->find_io)
+ return s->resource_ops->find_io(base, num, align, s);
+ return NULL;
+}
-#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
+int pcmcia_validate_mem(struct pcmcia_socket *s)
+{
+ if (s->resource_ops->validate_mem)
+ return s->resource_ops->validate_mem(s);
+ /* if there is no callback, we can assume that everything is OK */
+ return 0;
+}
+struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
+ int low, struct pcmcia_socket *s)
+{
+ if (s->resource_ops->find_mem)
+ return s->resource_ops->find_mem(base, num, align, low, s);
+ return NULL;
+}
/** 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)
+static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
+ unsigned int *base, unsigned int num, u_int lines)
{
int i;
- kio_addr_t try, align;
+ unsigned int 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",
+ dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n",
num, align);
align = 0;
} else
- while (align && (align < num)) align <<= 1;
+ while (align && (align < num))
+ align <<= 1;
}
if (*base & ~(align-1)) {
- ds_dbg(s, 0, "odd IO request: base %#x align %#lx\n",
+ dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n",
*base, align);
align = 0;
}
if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) {
*base = s->io_offset | (*base & 0x0fff);
- s->io[0].Attributes = attr;
return 0;
}
/* Check for an already-allocated window that must conflict with
* 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))
+ if ((s->io[i].res) && *base &&
+ ((s->io[i].res->start & (align-1)) == *base))
return 1;
for (i = 0; i < MAX_IO_WIN; i++) {
- if (s->io[i].NumPorts == 0) {
+ if (!s->io[i].res) {
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;
+ *base = s->io[i].res->start;
+ s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS);
+ s->io[i].InUse = num;
break;
} else
return 1;
- } else if (s->io[i].Attributes != attr)
+ } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS))
continue;
/* Try to extend top of window */
- try = s->io[i].BasePort + s->io[i].NumPorts;
+ try = s->io[i].res->end + 1;
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;
+ try = s->io[i].res->start - 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;
+ *base = try;
s->io[i].InUse += num;
break;
}
} /* alloc_io_space */
-static void release_io_space(struct pcmcia_socket *s, ioaddr_t base,
- ioaddr_t num)
+static void release_io_space(struct pcmcia_socket *s, unsigned int base,
+ unsigned int 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)) {
+ if (!s->io[i].res)
+ continue;
+ if ((s->io[i].res->start <= base) &&
+ (s->io[i].res->end >= base+num-1)) {
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;
* this and the tuple reading services.
*/
-int pccard_access_configuration_register(struct pcmcia_socket *s,
- unsigned int function,
+int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
conf_reg_t *reg)
{
+ struct pcmcia_socket *s;
config_t *c;
int addr;
u_char val;
- if (!s || !s->config)
- return CS_NO_CARD;
+ if (!p_dev || !p_dev->function_config)
+ return -EINVAL;
- c = &s->config[function];
+ s = p_dev->socket;
- if (c == NULL)
- return CS_NO_CARD;
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
- if (!(c->state & CONFIG_LOCKED))
- return CS_CONFIGURATION_LOCKED;
+ if (!(c->state & CONFIG_LOCKED)) {
+ dev_dbg(&s->dev, "Configuration isnt't locked\n");
+ mutex_unlock(&s->ops_mutex);
+ return -EACCES;
+ }
addr = (c->ConfigBase + reg->Offset) >> 1;
+ mutex_unlock(&s->ops_mutex);
switch (reg->Action) {
case CS_READ:
pcmcia_write_cis_mem(s, 1, addr, 1, &val);
break;
default:
- return CS_BAD_ARGS;
+ dev_dbg(&s->dev, "Invalid conf register request\n");
+ return -EINVAL;
break;
}
- return CS_SUCCESS;
-} /* pccard_access_configuration_register */
-
-int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
- conf_reg_t *reg)
-{
- return pccard_access_configuration_register(p_dev->socket,
- p_dev->func, reg);
-}
+ return 0;
+} /* pcmcia_access_configuration_register */
EXPORT_SYMBOL(pcmcia_access_configuration_register);
-
-int pccard_get_configuration_info(struct pcmcia_socket *s,
- unsigned int function,
- config_info_t *config)
+int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
+ memreq_t *req)
{
- 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;
+ struct pcmcia_socket *s = p_dev->socket;
+ int ret;
+
+ wh--;
+ if (wh >= MAX_WIN)
+ return -EINVAL;
+ if (req->Page != 0) {
+ dev_dbg(&s->dev, "failure: requested page is zero\n");
+ return -EINVAL;
}
-#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 */
-
-int pcmcia_get_configuration_info(struct pcmcia_device *p_dev,
- config_info_t *config)
-{
- return pccard_get_configuration_info(p_dev->socket, p_dev->func,
- config);
-}
-EXPORT_SYMBOL(pcmcia_get_configuration_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 */
-
-int pcmcia_get_status(client_handle_t handle, cs_status_t *status)
-{
- struct pcmcia_socket *s;
- s = SOCKET(handle);
- return pccard_get_status(s, handle->func, status);
-}
-EXPORT_SYMBOL(pcmcia_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;
+ mutex_lock(&s->ops_mutex);
+ s->win[wh].card_start = req->CardOffset;
+ ret = s->ops->set_mem_map(s, &s->win[wh]);
+ if (ret)
+ dev_warn(&s->dev, "failed to set_mem_map\n");
+ mutex_unlock(&s->ops_mutex);
+ return ret;
} /* pcmcia_map_mem_page */
EXPORT_SYMBOL(pcmcia_map_mem_page);
{
struct pcmcia_socket *s;
config_t *c;
+ int ret;
s = p_dev->socket;
- c = CONFIG(p_dev);
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (!(c->state & CONFIG_LOCKED))
- return CS_CONFIGURATION_LOCKED;
+
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
+
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
+ ret = -ENODEV;
+ goto unlock;
+ }
+ if (!(c->state & CONFIG_LOCKED)) {
+ dev_dbg(&s->dev, "Configuration isnt't locked\n");
+ ret = -EACCES;
+ goto unlock;
+ }
if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
if (mod->Attributes & CONF_ENABLE_IRQ) {
s->ops->set_socket(s, &s->socket);
}
- if (mod->Attributes & CONF_VCC_CHANGE_VALID)
- return CS_BAD_VCC;
+ if (mod->Attributes & CONF_VCC_CHANGE_VALID) {
+ dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
+ ret = -EINVAL;
+ goto unlock;
+ }
/* 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;
+ if (mod->Vpp1 != mod->Vpp2) {
+ dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
+ ret = -EINVAL;
+ goto unlock;
+ }
+ s->socket.Vpp = mod->Vpp1;
+ if (s->ops->set_socket(s, &s->socket)) {
+ dev_printk(KERN_WARNING, &s->dev,
+ "Unable to set VPP\n");
+ ret = -EIO;
+ goto unlock;
+ }
} else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
- (mod->Attributes & CONF_VPP2_CHANGE_VALID))
- return CS_BAD_VPP;
+ (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
+ dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
+ ret = -EINVAL;
+ goto unlock;
+ }
+
+ if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
+ pccard_io_map io_off = { 0, 0, 0, 0, 1 };
+ pccard_io_map io_on;
+ int i;
+
+ io_on.speed = io_speed;
+ for (i = 0; i < MAX_IO_WIN; i++) {
+ if (!s->io[i].res)
+ continue;
+ io_off.map = i;
+ io_on.map = i;
- return CS_SUCCESS;
+ io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
+ io_on.start = s->io[i].res->start;
+ io_on.stop = s->io[i].res->end;
+
+ s->ops->set_io_map(s, &io_off);
+ mdelay(40);
+ s->ops->set_io_map(s, &io_on);
+ }
+ }
+ ret = 0;
+unlock:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* modify_configuration */
EXPORT_SYMBOL(pcmcia_modify_configuration);
{
pccard_io_map io = { 0, 0, 0, 0, 1 };
struct pcmcia_socket *s = p_dev->socket;
+ config_t *c;
int i;
- if (!(p_dev->state & CLIENT_CONFIG_LOCKED))
- return CS_BAD_HANDLE;
- p_dev->state &= ~CLIENT_CONFIG_LOCKED;
-
- if (!(p_dev->state & CLIENT_STALE)) {
- config_t *c = CONFIG(p_dev);
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
+ if (p_dev->_locked) {
+ p_dev->_locked = 0;
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_LOCKED) {
+ c->state &= ~CONFIG_LOCKED;
if (c->state & CONFIG_IO_REQ)
for (i = 0; i < MAX_IO_WIN; i++) {
- if (s->io[i].NumPorts == 0)
+ if (!s->io[i].res)
continue;
s->io[i].Config--;
if (s->io[i].Config != 0)
io.map = i;
s->ops->set_io_map(s, &io);
}
- c->state &= ~CONFIG_LOCKED;
}
+ mutex_unlock(&s->ops_mutex);
- return CS_SUCCESS;
+ return 0;
} /* pcmcia_release_configuration */
-EXPORT_SYMBOL(pcmcia_release_configuration);
/** pcmcia_release_io
* don't bother checking the port ranges against the current socket
* values.
*/
-int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
+static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
+ int ret = -EINVAL;
+ config_t *c;
- if (!(p_dev->state & CLIENT_IO_REQ))
- return CS_BAD_HANDLE;
- p_dev->state &= ~CLIENT_IO_REQ;
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
- if (!(p_dev->state & CLIENT_STALE)) {
- config_t *c = CONFIG(p_dev);
- 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;
- }
+ if (!p_dev->_io)
+ goto out;
+
+ p_dev->_io = 0;
+
+ if ((c->io.BasePort1 != req->BasePort1) ||
+ (c->io.NumPorts1 != req->NumPorts1) ||
+ (c->io.BasePort2 != req->BasePort2) ||
+ (c->io.NumPorts2 != req->NumPorts2))
+ goto out;
+
+ 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;
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_release_io */
-EXPORT_SYMBOL(pcmcia_release_io);
-int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
+static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
- if (!(p_dev->state & CLIENT_IRQ_REQ))
- return CS_BAD_HANDLE;
- p_dev->state &= ~CLIENT_IRQ_REQ;
-
- if (!(p_dev->state & CLIENT_STALE)) {
- config_t *c = CONFIG(p_dev);
- 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;
- }
- }
+ config_t *c;
+ int ret = -EINVAL;
+
+ mutex_lock(&s->ops_mutex);
+
+ c = p_dev->function_config;
- if (req->Attributes & IRQ_HANDLE_PRESENT) {
- free_irq(req->AssignedIRQ, req->Instance);
+ if (!p_dev->_irq)
+ goto out;
+
+ p_dev->_irq = 0;
+
+ if (c->state & CONFIG_LOCKED)
+ goto out;
+
+ if (c->irq.Attributes != req->Attributes) {
+ dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
+ goto out;
+ }
+ if (s->irq.AssignedIRQ != req->AssignedIRQ) {
+ dev_dbg(&s->dev, "IRQ must match assigned one\n");
+ goto out;
}
+ if (--s->irq.Config == 0) {
+ c->state &= ~CONFIG_IRQ_REQ;
+ s->irq.AssignedIRQ = 0;
+ }
+
+ if (req->Handler)
+ free_irq(req->AssignedIRQ, p_dev->priv);
#ifdef CONFIG_PCMCIA_PROBE
pcmcia_used_irq[req->AssignedIRQ]--;
#endif
+ ret = 0;
- return CS_SUCCESS;
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_release_irq */
-EXPORT_SYMBOL(pcmcia_release_irq);
-int pcmcia_release_window(window_handle_t win)
+int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
{
- struct pcmcia_socket *s;
+ struct pcmcia_socket *s = p_dev->socket;
+ pccard_mem_map *win;
- 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;
+ wh--;
+ if (wh >= MAX_WIN)
+ return -EINVAL;
+
+ mutex_lock(&s->ops_mutex);
+ win = &s->win[wh];
+
+ if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
+ dev_dbg(&s->dev, "not releasing unknown window\n");
+ mutex_unlock(&s->ops_mutex);
+ return -EINVAL;
+ }
/* Shut down memory window */
- win->ctl.flags &= ~MAP_ACTIVE;
- s->ops->set_mem_map(s, &win->ctl);
- s->state &= ~SOCKET_WIN_REQ(win->index);
+ win->flags &= ~MAP_ACTIVE;
+ s->ops->set_mem_map(s, win);
+ s->state &= ~SOCKET_WIN_REQ(wh);
/* Release system memory */
- if (win->ctl.res) {
- release_resource(win->ctl.res);
- kfree(win->ctl.res);
- win->ctl.res = NULL;
+ if (win->res) {
+ release_resource(win->res);
+ kfree(win->res);
+ win->res = NULL;
}
- win->handle->state &= ~CLIENT_WIN_REQ(win->index);
+ p_dev->_win &= ~CLIENT_WIN_REQ(wh);
+ mutex_unlock(&s->ops_mutex);
- win->magic = 0;
-
- return CS_SUCCESS;
+ return 0;
} /* pcmcia_release_window */
EXPORT_SYMBOL(pcmcia_release_window);
pccard_io_map iomap;
if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
+ return -ENODEV;
- if (req->IntType & INT_CARDBUS)
- return CS_UNSUPPORTED_MODE;
- c = CONFIG(p_dev);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
+ if (req->IntType & INT_CARDBUS) {
+ dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
+ return -EINVAL;
+ }
- /* 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;
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
+ if (c->state & CONFIG_LOCKED) {
+ mutex_unlock(&s->ops_mutex);
+ dev_dbg(&s->dev, "Configuration is locked\n");
+ return -EACCES;
+ }
- c->Vcc = req->Vcc; c->Vpp1 = c->Vpp2 = req->Vpp1;
+ /* Do power control. We don't allow changes in Vcc. */
+ s->socket.Vpp = req->Vpp;
+ if (s->ops->set_socket(s, &s->socket)) {
+ mutex_unlock(&s->ops_mutex);
+ dev_printk(KERN_WARNING, &s->dev,
+ "Unable to set socket state\n");
+ return -EINVAL;
+ }
/* Pick memory or I/O card, DMA mode, interrupt */
c->IntType = req->IntType;
s->socket.io_irq = 0;
s->ops->set_socket(s, &s->socket);
s->lock_count++;
+ mutex_unlock(&s->ops_mutex);
/* Set up CIS configuration registers */
base = c->ConfigBase = req->ConfigBase;
- c->Present = c->CardValues = req->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);
/* Configure I/O windows */
if (c->state & CONFIG_IO_REQ) {
+ mutex_lock(&s->ops_mutex);
iomap.speed = io_speed;
for (i = 0; i < MAX_IO_WIN; i++)
- if (s->io[i].NumPorts != 0) {
+ if (s->io[i].res) {
iomap.map = i;
iomap.flags = MAP_ACTIVE;
- switch (s->io[i].Attributes & IO_DATA_PATH_WIDTH) {
+ switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
case IO_DATA_PATH_WIDTH_16:
iomap.flags |= MAP_16BIT; break;
case IO_DATA_PATH_WIDTH_AUTO:
default:
break;
}
- iomap.start = s->io[i].BasePort;
- iomap.stop = iomap.start + s->io[i].NumPorts - 1;
+ iomap.start = s->io[i].res->start;
+ iomap.stop = s->io[i].res->end;
s->ops->set_io_map(s, &iomap);
s->io[i].Config++;
}
+ mutex_unlock(&s->ops_mutex);
}
c->state |= CONFIG_LOCKED;
- p_dev->state |= CLIENT_CONFIG_LOCKED;
- return CS_SUCCESS;
+ p_dev->_locked = 1;
+ return 0;
} /* pcmcia_request_configuration */
EXPORT_SYMBOL(pcmcia_request_configuration);
{
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
+ int ret = -EINVAL;
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
+ mutex_lock(&s->ops_mutex);
+
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
+ goto out;
+ }
if (!req)
- return CS_UNSUPPORTED_MODE;
- c = CONFIG(p_dev);
- 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;
+ goto out;
+
+ c = p_dev->function_config;
+ if (c->state & CONFIG_LOCKED) {
+ dev_dbg(&s->dev, "Configuration is locked\n");
+ goto out;
+ }
+ if (c->state & CONFIG_IO_REQ) {
+ dev_dbg(&s->dev, "IO already configured\n");
+ goto out;
+ }
+ if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
+ dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
+ goto out;
+ }
if ((req->NumPorts2 > 0) &&
- (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)))
- return CS_BAD_ATTRIBUTE;
+ (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
+ dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
+ goto out;
+ }
- if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
- req->NumPorts1, req->IOAddrLines))
- return CS_IN_USE;
+ dev_dbg(&s->dev, "trying to allocate resource 1\n");
+ ret = alloc_io_space(s, req->Attributes1, &req->BasePort1,
+ req->NumPorts1, req->IOAddrLines);
+ if (ret) {
+ dev_dbg(&s->dev, "allocation of resource 1 failed\n");
+ goto out;
+ }
if (req->NumPorts2) {
- if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
- req->NumPorts2, req->IOAddrLines)) {
+ dev_dbg(&s->dev, "trying to allocate resource 2\n");
+ ret = alloc_io_space(s, req->Attributes2, &req->BasePort2,
+ req->NumPorts2, req->IOAddrLines);
+ if (ret) {
+ dev_dbg(&s->dev, "allocation of resource 2 failed\n");
release_io_space(s, req->BasePort1, req->NumPorts1);
- return CS_IN_USE;
+ goto out;
}
}
c->io = *req;
c->state |= CONFIG_IO_REQ;
- p_dev->state |= CLIENT_IO_REQ;
- return CS_SUCCESS;
+ p_dev->_io = 1;
+ dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret);
+
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_request_io */
EXPORT_SYMBOL(pcmcia_request_io);
*/
#ifdef CONFIG_PCMCIA_PROBE
-static irqreturn_t test_action(int cpl, void *dev_id, struct pt_regs *regs)
+static irqreturn_t test_action(int cpl, void *dev_id)
{
return IRQ_NONE;
}
{
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
- int ret = CS_IN_USE, irq = 0;
+ int ret = -EINVAL, irq = 0;
+ int type;
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- c = CONFIG(p_dev);
- if (c->state & CONFIG_LOCKED)
- return CS_CONFIGURATION_LOCKED;
- if (c->state & CONFIG_IRQ_REQ)
- return CS_IN_USE;
+ mutex_lock(&s->ops_mutex);
-#ifdef CONFIG_PCMCIA_PROBE
- if (s->irq.AssignedIRQ != 0) {
- /* If the interrupt is already assigned, it must be the same */
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
+ goto out;
+ }
+ c = p_dev->function_config;
+ if (c->state & CONFIG_LOCKED) {
+ dev_dbg(&s->dev, "Configuration is locked\n");
+ goto out;
+ }
+ if (c->state & CONFIG_IRQ_REQ) {
+ dev_dbg(&s->dev, "IRQ already configured\n");
+ goto out;
+ }
+
+ /* Decide what type of interrupt we are registering */
+ type = 0;
+ if (s->functions > 1) /* All of this ought to be handled higher up */
+ type = IRQF_SHARED;
+ else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
+ type = IRQF_SHARED;
+ else
+ printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
+
+ /* If the interrupt is already assigned, it must be the same */
+ if (s->irq.AssignedIRQ != 0)
irq = s->irq.AssignedIRQ;
- } else {
+
+#ifdef CONFIG_PCMCIA_PROBE
+ if (!irq) {
int try;
u32 mask = s->irq_mask;
- void *data = NULL;
+ void *data = p_dev; /* something unique to this device */
for (try = 0; try < 64; try++) {
irq = try % 32;
* 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);
+ (req->Handler) ? req->Handler : test_action,
+ type,
+ p_dev->devname,
+ (req->Handler) ? p_dev->priv : data);
if (!ret) {
- if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+ if (!req->Handler)
free_irq(irq, data);
break;
}
}
}
#endif
- if (ret) {
- if (!s->pci_irq)
- return ret;
+ /* only assign PCI irq if no IRQ already assigned */
+ if (ret && !s->irq.AssignedIRQ) {
+ if (!s->pci_irq) {
+ dev_printk(KERN_INFO, &s->dev, "no IRQ found\n");
+ goto out;
+ }
+ type = IRQF_SHARED;
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;
+ if (ret && req->Handler) {
+ ret = request_irq(irq, req->Handler, type,
+ p_dev->devname, p_dev->priv);
+ if (ret) {
+ dev_printk(KERN_INFO, &s->dev,
+ "request_irq() failed\n");
+ goto out;
+ }
}
+ /* Make sure the fact the request type was overridden is passed back */
+ if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
+ req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
+ dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
+ "request for exclusive IRQ could not be fulfilled.\n");
+ dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
+ "needs updating to supported shared IRQ lines.\n");
+ }
c->irq.Attributes = req->Attributes;
s->irq.AssignedIRQ = req->AssignedIRQ = irq;
s->irq.Config++;
c->state |= CONFIG_IRQ_REQ;
- p_dev->state |= CLIENT_IRQ_REQ;
+ p_dev->_irq = 1;
#ifdef CONFIG_PCMCIA_PROBE
pcmcia_used_irq[irq]++;
#endif
- return CS_SUCCESS;
+ ret = 0;
+out:
+ mutex_unlock(&s->ops_mutex);
+ return ret;
} /* pcmcia_request_irq */
EXPORT_SYMBOL(pcmcia_request_irq);
* Request_window() establishes a mapping between card memory space
* and system memory space.
*/
-int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
+int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh)
{
- struct pcmcia_socket *s = (*p_dev)->socket;
- window_t *win;
+ struct pcmcia_socket *s = p_dev->socket;
+ pccard_mem_map *win;
u_long align;
int w;
- if (!(s->state & SOCKET_PRESENT))
- return CS_NO_CARD;
- if (req->Attributes & (WIN_PAGED | WIN_SHARED))
- return CS_BAD_ATTRIBUTE;
+ if (!(s->state & SOCKET_PRESENT)) {
+ dev_dbg(&s->dev, "No card present\n");
+ return -ENODEV;
+ }
+ if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
+ dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
+ return -EINVAL;
+ }
/* Window size defaults to smallest available */
if (req->Size == 0)
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->Size & (s->map_size-1)) {
+ dev_dbg(&s->dev, "invalid map size\n");
+ return -EINVAL;
+ }
if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
- (req->Base & (align-1)))
- return CS_BAD_BASE;
+ (req->Base & (align-1))) {
+ dev_dbg(&s->dev, "invalid base address\n");
+ return -EINVAL;
+ }
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;
+ if (!(s->state & SOCKET_WIN_REQ(w)))
+ break;
+ if (w == MAX_WIN) {
+ dev_dbg(&s->dev, "all windows are used already\n");
+ return -EINVAL;
+ }
+ mutex_lock(&s->ops_mutex);
win = &s->win[w];
- win->magic = WINDOW_MAGIC;
- win->index = w;
- win->handle = *p_dev;
- win->sock = s;
if (!(s->features & SS_CAP_STATIC_MAP)) {
- win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align,
+ win->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;
+ if (!win->res) {
+ dev_dbg(&s->dev, "allocating mem region failed\n");
+ mutex_unlock(&s->ops_mutex);
+ return -EINVAL;
+ }
}
- (*p_dev)->state |= CLIENT_WIN_REQ(w);
+ p_dev->_win |= CLIENT_WIN_REQ(w);
/* Configure the socket controller */
- win->ctl.map = w+1;
- win->ctl.flags = 0;
- win->ctl.speed = req->AccessSpeed;
+ win->map = w+1;
+ win->flags = 0;
+ win->speed = req->AccessSpeed;
if (req->Attributes & WIN_MEMORY_TYPE)
- win->ctl.flags |= MAP_ATTRIB;
+ win->flags |= MAP_ATTRIB;
if (req->Attributes & WIN_ENABLE)
- win->ctl.flags |= MAP_ACTIVE;
+ win->flags |= MAP_ACTIVE;
if (req->Attributes & WIN_DATA_WIDTH_16)
- win->ctl.flags |= MAP_16BIT;
+ win->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;
+ win->flags |= MAP_USE_WAIT;
+ win->card_start = 0;
+
+ if (s->ops->set_mem_map(s, win) != 0) {
+ dev_dbg(&s->dev, "failed to set memory mapping\n");
+ mutex_unlock(&s->ops_mutex);
+ return -EIO;
+ }
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;
+ if (s->features & SS_CAP_STATIC_MAP)
+ req->Base = win->static_start;
+ else
+ req->Base = win->res->start;
+
+ mutex_unlock(&s->ops_mutex);
+ *wh = w + 1;
- return CS_SUCCESS;
+ return 0;
} /* pcmcia_request_window */
EXPORT_SYMBOL(pcmcia_request_window);
+
+void pcmcia_disable_device(struct pcmcia_device *p_dev)
+{
+ pcmcia_release_configuration(p_dev);
+ pcmcia_release_io(p_dev, &p_dev->io);
+ pcmcia_release_irq(p_dev, &p_dev->irq);
+ if (p_dev->win)
+ pcmcia_release_window(p_dev, p_dev->win);
+}
+EXPORT_SYMBOL(pcmcia_disable_device);
+
+
+struct pcmcia_cfg_mem {
+ struct pcmcia_device *p_dev;
+ void *priv_data;
+ int (*conf_check) (struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ cistpl_cftable_entry_t *dflt,
+ unsigned int vcc,
+ void *priv_data);
+ cisparse_t parse;
+ cistpl_cftable_entry_t dflt;
+};
+
+/**
+ * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_config() is the internal callback for the call from
+ * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+ cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
+ struct pcmcia_cfg_mem *cfg_mem = priv;
+
+ /* default values */
+ cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+ cfg_mem->dflt = *cfg;
+
+ return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
+ cfg_mem->p_dev->socket->socket.Vcc,
+ cfg_mem->priv_data);
+}
+
+/**
+ * pcmcia_loop_config() - loop over configuration options
+ * @p_dev: the struct pcmcia_device which we need to loop for.
+ * @conf_check: function to call for each configuration option.
+ * It gets passed the struct pcmcia_device, the CIS data
+ * describing the configuration option, and private data
+ * being passed to pcmcia_loop_config()
+ * @priv_data: private data to be passed to the conf_check function.
+ *
+ * pcmcia_loop_config() loops over all configuration options, and calls
+ * the driver-specific conf_check() for each one, checking whether
+ * it is a valid one. Returns 0 on success or errorcode otherwise.
+ */
+int pcmcia_loop_config(struct pcmcia_device *p_dev,
+ int (*conf_check) (struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ cistpl_cftable_entry_t *dflt,
+ unsigned int vcc,
+ void *priv_data),
+ void *priv_data)
+{
+ struct pcmcia_cfg_mem *cfg_mem;
+ int ret;
+
+ cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
+ if (cfg_mem == NULL)
+ return -ENOMEM;
+
+ cfg_mem->p_dev = p_dev;
+ cfg_mem->conf_check = conf_check;
+ cfg_mem->priv_data = priv_data;
+
+ ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
+ CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
+ cfg_mem, pcmcia_do_loop_config);
+
+ kfree(cfg_mem);
+ return ret;
+}
+EXPORT_SYMBOL(pcmcia_loop_config);
+
+
+struct pcmcia_loop_mem {
+ struct pcmcia_device *p_dev;
+ void *priv_data;
+ int (*loop_tuple) (struct pcmcia_device *p_dev,
+ tuple_t *tuple,
+ void *priv_data);
+};
+
+/**
+ * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_tuple() is the internal callback for the call from
+ * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+ struct pcmcia_loop_mem *loop = priv;
+
+ return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
+};
+
+/**
+ * pcmcia_loop_tuple() - loop over tuples in the CIS
+ * @p_dev: the struct pcmcia_device which we need to loop for.
+ * @code: which CIS code shall we look for?
+ * @priv_data: private data to be passed to the loop_tuple function.
+ * @loop_tuple: function to call for each CIS entry of type @function. IT
+ * gets passed the raw tuple and @priv_data.
+ *
+ * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
+ * calls the @loop_tuple function for each entry. If the call to @loop_tuple
+ * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
+ */
+int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+ int (*loop_tuple) (struct pcmcia_device *p_dev,
+ tuple_t *tuple,
+ void *priv_data),
+ void *priv_data)
+{
+ struct pcmcia_loop_mem loop = {
+ .p_dev = p_dev,
+ .loop_tuple = loop_tuple,
+ .priv_data = priv_data};
+
+ return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
+ &loop, pcmcia_do_loop_tuple);
+}
+EXPORT_SYMBOL(pcmcia_loop_tuple);
+
+
+struct pcmcia_loop_get {
+ size_t len;
+ cisdata_t **buf;
+};
+
+/**
+ * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
+ *
+ * pcmcia_do_get_tuple() is the internal callback for the call from
+ * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
+ * the first tuple, return 0 unconditionally. Create a memory buffer large
+ * enough to hold the content of the tuple, and fill it with the tuple data.
+ * The caller is responsible to free the buffer.
+ */
+static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
+ void *priv)
+{
+ struct pcmcia_loop_get *get = priv;
+
+ *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
+ if (*get->buf) {
+ get->len = tuple->TupleDataLen;
+ memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
+ } else
+ dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
+ return 0;
+}
+
+/**
+ * pcmcia_get_tuple() - get first tuple from CIS
+ * @p_dev: the struct pcmcia_device which we need to loop for.
+ * @code: which CIS code shall we look for?
+ * @buf: pointer to store the buffer to.
+ *
+ * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
+ * It returns the buffer length (or zero). The caller is responsible to free
+ * the buffer passed in @buf.
+ */
+size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+ unsigned char **buf)
+{
+ struct pcmcia_loop_get get = {
+ .len = 0,
+ .buf = buf,
+ };
+
+ *get.buf = NULL;
+ pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
+
+ return get.len;
+}
+EXPORT_SYMBOL(pcmcia_get_tuple);
+
+
+/**
+ * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
+ *
+ * pcmcia_do_get_mac() is the internal callback for the call from
+ * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
+ * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
+ * to struct net_device->dev_addr[i].
+ */
+static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
+ void *priv)
+{
+ struct net_device *dev = priv;
+ int i;
+
+ if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
+ return -EINVAL;
+ if (tuple->TupleDataLen < ETH_ALEN + 2) {
+ dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
+ "LAN_NODE_ID\n");
+ return -EINVAL;
+ }
+
+ if (tuple->TupleData[1] != ETH_ALEN) {
+ dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = tuple->TupleData[i+2];
+ return 0;
+}
+
+/**
+ * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
+ * @p_dev: the struct pcmcia_device for which we want the address.
+ * @dev: a properly prepared struct net_device to store the info to.
+ *
+ * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
+ * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
+ * must be set up properly by the driver (see examples!).
+ */
+int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
+{
+ return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
+}
+EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff