#define to_cycles(ns) ((ns)/120)
#define to_ns(cycles) ((cycles)*120)
+/**
+ * yenta PCI irq probing.
+ * currently only used in the TI/EnE initialization code
+ */
+#ifdef CONFIG_YENTA_TI
static int yenta_probe_cb_irq(struct yenta_socket *socket);
+#endif
static unsigned int override_bios;
return 0;
}
-static void yenta_get_power(struct yenta_socket *socket, socket_state_t *state)
-{
- if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
- (socket->flags & YENTA_16BIT_POWER_EXCA)) {
- u8 reg, vcc, vpp;
-
- reg = exca_readb(socket, I365_POWER);
- vcc = reg & I365_VCC_MASK;
- vpp = reg & I365_VPP1_MASK;
- state->Vcc = state->Vpp = 0;
-
- if (socket->flags & YENTA_16BIT_POWER_DF) {
- if (vcc == I365_VCC_3V)
- state->Vcc = 33;
- if (vcc == I365_VCC_5V)
- state->Vcc = 50;
- if (vpp == I365_VPP1_5V)
- state->Vpp = state->Vcc;
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
- } else {
- if (reg & I365_VCC_5V) {
- state->Vcc = 50;
- if (vpp == I365_VPP1_5V)
- state->Vpp = 50;
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
- }
- }
- } else {
- u32 control;
-
- control = cb_readl(socket, CB_SOCKET_CONTROL);
-
- switch (control & CB_SC_VCC_MASK) {
- case CB_SC_VCC_5V: state->Vcc = 50; break;
- case CB_SC_VCC_3V: state->Vcc = 33; break;
- default: state->Vcc = 0;
- }
-
- switch (control & CB_SC_VPP_MASK) {
- case CB_SC_VPP_12V: state->Vpp = 120; break;
- case CB_SC_VPP_5V: state->Vpp = 50; break;
- case CB_SC_VPP_3V: state->Vpp = 33; break;
- default: state->Vpp = 0;
- }
- }
-}
-
-static int yenta_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
- u8 reg;
- u32 control;
-
- control = cb_readl(socket, CB_SOCKET_CONTROL);
-
- yenta_get_power(socket, state);
- state->io_irq = socket->io_irq;
-
- if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
- u16 bridge = config_readw(socket, CB_BRIDGE_CONTROL);
- if (bridge & CB_BRIDGE_CRST)
- state->flags |= SS_RESET;
- return 0;
- }
-
- /* 16-bit card state.. */
- reg = exca_readb(socket, I365_POWER);
- state->flags = (reg & I365_PWR_AUTO) ? SS_PWR_AUTO : 0;
- state->flags |= (reg & I365_PWR_OUT) ? SS_OUTPUT_ENA : 0;
-
- reg = exca_readb(socket, I365_INTCTL);
- state->flags |= (reg & I365_PC_RESET) ? 0 : SS_RESET;
- state->flags |= (reg & I365_PC_IOCARD) ? SS_IOCARD : 0;
-
- reg = exca_readb(socket, I365_CSCINT);
- state->csc_mask = (reg & I365_CSC_DETECT) ? SS_DETECT : 0;
- if (state->flags & SS_IOCARD) {
- state->csc_mask |= (reg & I365_CSC_STSCHG) ? SS_STSCHG : 0;
- } else {
- state->csc_mask |= (reg & I365_CSC_BVD1) ? SS_BATDEAD : 0;
- state->csc_mask |= (reg & I365_CSC_BVD2) ? SS_BATWARN : 0;
- state->csc_mask |= (reg & I365_CSC_READY) ? SS_READY : 0;
- }
-
- return 0;
-}
-
static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
{
/* some birdges require to use the ExCA registers to power 16bit cards */
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
u16 bridge;
- yenta_set_power(socket, state);
+ /* if powering down: do it immediately */
+ if (state->Vcc == 0)
+ yenta_set_power(socket, state);
+
socket->io_irq = state->io_irq;
bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
/* Socket event mask: get card insert/remove events.. */
cb_writel(socket, CB_SOCKET_EVENT, -1);
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
+
+ /* if powering up: do it as the last step when the socket is configured */
+ if (state->Vcc != 0)
+ yenta_set_power(socket, state);
return 0;
}
csc = exca_readb(socket, I365_CSC);
+ if (!(cb_event || csc))
+ return IRQ_NONE;
+
events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
if (events)
pcmcia_parse_events(&socket->socket, events);
- if (cb_event || csc)
- return IRQ_HANDLED;
-
- return IRQ_NONE;
+ return IRQ_HANDLED;
}
static void yenta_interrupt_wrapper(unsigned long data)
.init = yenta_sock_init,
.suspend = yenta_sock_suspend,
.get_status = yenta_get_status,
- .get_socket = yenta_get_socket,
.set_socket = yenta_set_socket,
.set_io_map = yenta_set_io_map,
.set_mem_map = yenta_set_mem_map,
};
+#ifdef CONFIG_YENTA_TI
#include "ti113x.h"
+#endif
+#ifdef CONFIG_YENTA_RICOH
#include "ricoh.h"
+#endif
+#ifdef CONFIG_YENTA_TOSHIBA
#include "topic.h"
+#endif
+#ifdef CONFIG_YENTA_O2
#include "o2micro.h"
+#endif
enum {
CARDBUS_TYPE_DEFAULT = -1,
* initialization sequences etc details. List them here..
*/
static struct cardbus_type cardbus_type[] = {
+#ifdef CONFIG_YENTA_TI
[CARDBUS_TYPE_TI] = {
.override = ti_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
+#endif
+#ifdef CONFIG_YENTA_RICOH
[CARDBUS_TYPE_RICOH] = {
.override = ricoh_override,
.save_state = ricoh_save_state,
.restore_state = ricoh_restore_state,
},
+#endif
+#ifdef CONFIG_YENTA_TOSHIBA
[CARDBUS_TYPE_TOPIC95] = {
.override = topic95_override,
},
[CARDBUS_TYPE_TOPIC97] = {
.override = topic97_override,
},
+#endif
+#ifdef CONFIG_YENTA_O2
[CARDBUS_TYPE_O2MICRO] = {
.override = o2micro_override,
.restore_state = o2micro_restore_state,
},
+#endif
+#ifdef CONFIG_YENTA_TI
[CARDBUS_TYPE_ENE] = {
.override = ene_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
+#endif
};
}
+/**
+ * yenta PCI irq probing.
+ * currently only used in the TI/EnE initialization code
+ */
+#ifdef CONFIG_YENTA_TI
+
/* interrupt handler, only used during probing */
static irqreturn_t yenta_probe_handler(int irq, void *dev_id, struct pt_regs *regs)
{
socket->probe_status = 0;
- if (request_irq(socket->cb_irq, yenta_probe_handler, SA_SHIRQ, "yenta", socket)) {
+ if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n");
return -1;
}
return (int) socket->probe_status;
}
+#endif /* CONFIG_YENTA_TI */
/*
config_writew(socket, CB_BRIDGE_CONTROL, bridge);
}
+/**
+ * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
+ * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
+ *
+ * Checks if devices on the bus which the CardBus bridge bridges to would be
+ * invisible during PCI scans because of a misconfigured subordinate number
+ * of the parent brige - some BIOSes seem to be too lazy to set it right.
+ * Does the fixup carefully by checking how far it can go without conflicts.
+ * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
+ */
+static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
+{
+ struct list_head *tmp;
+ unsigned char upper_limit;
+ /*
+ * We only check and fix the parent bridge: All systems which need
+ * this fixup that have been reviewed are laptops and the only bridge
+ * which needed fixing was the parent bridge of the CardBus bridge:
+ */
+ struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
+
+ /* Check bus numbers are already set up correctly: */
+ if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate)
+ return; /* The subordinate number is ok, nothing to do */
+
+ if (!bridge_to_fix->parent)
+ return; /* Root bridges are ok */
+
+ /* stay within the limits of the bus range of the parent: */
+ upper_limit = bridge_to_fix->parent->subordinate;
+
+ /* check the bus ranges of all silbling bridges to prevent overlap */
+ list_for_each(tmp, &bridge_to_fix->parent->children) {
+ struct pci_bus * silbling = pci_bus_b(tmp);
+ /*
+ * If the silbling has a higher secondary bus number
+ * and it's secondary is equal or smaller than our
+ * current upper limit, set the new upper limit to
+ * the bus number below the silbling's range:
+ */
+ if (silbling->secondary > bridge_to_fix->subordinate
+ && silbling->secondary <= upper_limit)
+ upper_limit = silbling->secondary - 1;
+ }
+
+ /* Show that the wanted subordinate number is not possible: */
+ if (cardbus_bridge->subordinate > upper_limit)
+ printk(KERN_WARNING "Yenta: Upper limit for fixing this "
+ "bridge's parent bridge: #%02x\n", upper_limit);
+
+ /* If we have room to increase the bridge's subordinate number, */
+ if (bridge_to_fix->subordinate < upper_limit) {
+
+ /* use the highest number of the hidden bus, within limits */
+ unsigned char subordinate_to_assign =
+ min(cardbus_bridge->subordinate, upper_limit);
+
+ printk(KERN_INFO "Yenta: Raising subordinate bus# of parent "
+ "bus (#%02x) from #%02x to #%02x\n",
+ bridge_to_fix->number,
+ bridge_to_fix->subordinate, subordinate_to_assign);
+
+ /* Save the new subordinate in the bus struct of the bridge */
+ bridge_to_fix->subordinate = subordinate_to_assign;
+
+ /* and update the PCI config space with the new subordinate */
+ pci_write_config_byte(bridge_to_fix->self,
+ PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
+ }
+}
+
/*
* Initialize a cardbus controller. Make sure we have a usable
* interrupt, and that we can map the cardbus area. Fill in the
return -ENODEV;
}
- socket = kmalloc(sizeof(struct yenta_socket), GFP_KERNEL);
+ socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
if (!socket)
return -ENOMEM;
- memset(socket, 0, sizeof(*socket));
/* prepare pcmcia_socket */
socket->socket.ops = ¥ta_socket_operations;
/* We must finish initialization here */
- if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, SA_SHIRQ, "yenta", socket)) {
+ if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
/* No IRQ or request_irq failed. Poll */
socket->cb_irq = 0; /* But zero is a valid IRQ number. */
init_timer(&socket->poll_timer);
yenta_get_socket_capabilities(socket, isa_interrupts);
printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
+ yenta_fixup_parent_bridge(dev->subordinate);
+
/* Register it with the pcmcia layer.. */
ret = pcmcia_register_socket(&socket->socket);
if (ret == 0) {
* advanced overrides instead. (I can't get the
* data sheets for these devices. --rmk)
*/
+#ifdef CONFIG_YENTA_TI
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
+ CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
+#endif /* CONFIG_YENTA_TI */
+#ifdef CONFIG_YENTA_RICOH
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
+#endif
+#ifdef CONFIG_YENTA_TOSHIBA
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
+#endif
+#ifdef CONFIG_YENTA_O2
CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
+#endif
/* match any cardbus bridge */
CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
git.openpandora.org / pandora-kernel.git / blobdiff