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-rw-r--r--usr/src/boot/sys/boot/i386/libi386/biospci.c426
1 files changed, 219 insertions, 207 deletions
diff --git a/usr/src/boot/sys/boot/i386/libi386/biospci.c b/usr/src/boot/sys/boot/i386/libi386/biospci.c
index 1f9f86338f..4c75fa310f 100644
--- a/usr/src/boot/sys/boot/i386/libi386/biospci.c
+++ b/usr/src/boot/sys/boot/i386/libi386/biospci.c
@@ -1,4 +1,4 @@
-/*-
+/*
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* Copyright (c) 2016 Netflix, Inc
* All rights reserved.
@@ -48,278 +48,289 @@
* interface.
*/
-struct pci_progif
+struct pci_progif
{
- int pi_code;
- const char *pi_name;
+ int pi_code;
+ const char *pi_name;
};
static struct pci_progif progif_null[] = {
- {0x0, NULL},
- {-1, NULL}
+ {0x0, NULL},
+ {-1, NULL}
};
static struct pci_progif progif_display[] = {
- {0x0, "VGA"},
- {0x1, "8514"},
- {-1, NULL}
+ {0x0, "VGA"},
+ {0x1, "8514"},
+ {-1, NULL}
};
static struct pci_progif progif_ide[] = {
- {0x00, NULL},
- {0x01, NULL},
- {0x02, NULL},
- {0x03, NULL},
- {0x04, NULL},
- {0x05, NULL},
- {0x06, NULL},
- {0x07, NULL},
- {0x08, NULL},
- {0x09, NULL},
- {0x0a, NULL},
- {0x0b, NULL},
- {0x0c, NULL},
- {0x0d, NULL},
- {0x0e, NULL},
- {0x0f, NULL},
- {0x80, NULL},
- {0x81, NULL},
- {0x82, NULL},
- {0x83, NULL},
- {0x84, NULL},
- {0x85, NULL},
- {0x86, NULL},
- {0x87, NULL},
- {0x88, NULL},
- {0x89, NULL},
- {0x8a, NULL},
- {0x8b, NULL},
- {0x8c, NULL},
- {0x8d, NULL},
- {0x8e, NULL},
- {0x8f, NULL},
- {-1, NULL}
+ {0x00, NULL},
+ {0x01, NULL},
+ {0x02, NULL},
+ {0x03, NULL},
+ {0x04, NULL},
+ {0x05, NULL},
+ {0x06, NULL},
+ {0x07, NULL},
+ {0x08, NULL},
+ {0x09, NULL},
+ {0x0a, NULL},
+ {0x0b, NULL},
+ {0x0c, NULL},
+ {0x0d, NULL},
+ {0x0e, NULL},
+ {0x0f, NULL},
+ {0x80, NULL},
+ {0x81, NULL},
+ {0x82, NULL},
+ {0x83, NULL},
+ {0x84, NULL},
+ {0x85, NULL},
+ {0x86, NULL},
+ {0x87, NULL},
+ {0x88, NULL},
+ {0x89, NULL},
+ {0x8a, NULL},
+ {0x8b, NULL},
+ {0x8c, NULL},
+ {0x8d, NULL},
+ {0x8e, NULL},
+ {0x8f, NULL},
+ {-1, NULL}
};
static struct pci_progif progif_serial[] = {
- {0x0, "8250"},
- {0x1, "16450"},
- {0x2, "16550"},
- {-1, NULL}
+ {0x0, "8250"},
+ {0x1, "16450"},
+ {0x2, "16550"},
+ {-1, NULL}
};
static struct pci_progif progif_parallel[] = {
- {0x0, "Standard"},
- {0x1, "Bidirectional"},
- {0x2, "ECP"},
- {-1, NULL}
+ {0x0, "Standard"},
+ {0x1, "Bidirectional"},
+ {0x2, "ECP"},
+ {-1, NULL}
};
static struct pci_progif progif_firewire[] = {
- {0x10, "OHCI"},
- {-1, NULL}
+ {0x10, "OHCI"},
+ {-1, NULL}
};
-struct pci_subclass
+struct pci_subclass
{
- int ps_subclass;
- const char *ps_name;
- struct pci_progif *ps_progif; /* if set, use for programming interface value(s) */
+ int ps_subclass;
+ const char *ps_name;
+ /* if set, use for programming interface value(s) */
+ struct pci_progif *ps_progif;
};
static struct pci_subclass subclass_old[] = {
- {0x0, "Old non-VGA", progif_null},
- {0x1, "Old VGA", progif_null},
- {-1, NULL, NULL}
+ {0x0, "Old non-VGA", progif_null},
+ {0x1, "Old VGA", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_subclass subclass_mass[] = {
- {0x0, "SCSI", progif_null},
- {0x1, "IDE", progif_ide},
- {0x2, "Floppy disk", progif_null},
- {0x3, "IPI", progif_null},
- {0x4, "RAID", progif_null},
- {0x80, "mass storage", progif_null},
- {-1, NULL, NULL}
+ {0x0, "SCSI", progif_null},
+ {0x1, "IDE", progif_ide},
+ {0x2, "Floppy disk", progif_null},
+ {0x3, "IPI", progif_null},
+ {0x4, "RAID", progif_null},
+ {0x80, "mass storage", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_subclass subclass_net[] = {
- {0x0, "Ethernet", progif_null},
- {0x1, "Token ring", progif_null},
- {0x2, "FDDI", progif_null},
- {0x3, "ATM", progif_null},
- {0x80, "network", progif_null},
- {-1, NULL, NULL}
+ {0x0, "Ethernet", progif_null},
+ {0x1, "Token ring", progif_null},
+ {0x2, "FDDI", progif_null},
+ {0x3, "ATM", progif_null},
+ {0x80, "network", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_subclass subclass_display[] = {
- {0x0, NULL, progif_display},
- {0x1, "XGA", progif_null},
- {0x80, "other", progif_null},
- {-1, NULL, NULL}
+ {0x0, NULL, progif_display},
+ {0x1, "XGA", progif_null},
+ {0x80, "other", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_subclass subclass_comms[] = {
- {0x0, "serial", progif_serial},
- {0x1, "parallel", progif_parallel},
- {0x80, "communications", progif_null},
- {-1, NULL, NULL}
+ {0x0, "serial", progif_serial},
+ {0x1, "parallel", progif_parallel},
+ {0x80, "communications", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_subclass subclass_serial[] = {
- {0x0, "FireWire", progif_firewire},
- {0x1, "ACCESS.bus", progif_null},
- {0x2, "SSA", progif_null},
- {0x3, "USB", progif_null},
- {0x4, "Fibrechannel", progif_null},
- {-1, NULL, NULL}
+ {0x0, "FireWire", progif_firewire},
+ {0x1, "ACCESS.bus", progif_null},
+ {0x2, "SSA", progif_null},
+ {0x3, "USB", progif_null},
+ {0x4, "Fibrechannel", progif_null},
+ {-1, NULL, NULL}
};
static struct pci_class
{
- int pc_class;
- const char *pc_name;
- struct pci_subclass *pc_subclass;
+ int pc_class;
+ const char *pc_name;
+ struct pci_subclass *pc_subclass;
} pci_classes[] = {
- {0x0, "device", subclass_old},
- {0x1, "controller", subclass_mass},
- {0x2, "controller", subclass_net},
- {0x3, "display", subclass_display},
- {0x7, "controller", subclass_comms},
- {0xc, "controller", subclass_serial},
- {-1, NULL, NULL}
+ {0x0, "device", subclass_old},
+ {0x1, "controller", subclass_mass},
+ {0x2, "controller", subclass_net},
+ {0x3, "display", subclass_display},
+ {0x7, "controller", subclass_comms},
+ {0xc, "controller", subclass_serial},
+ {-1, NULL, NULL}
};
static void biospci_enumerate(void);
-static void biospci_addinfo(int devid, struct pci_class *pc, struct pci_subclass *psc, struct pci_progif *ppi);
+static void biospci_addinfo(int, struct pci_class *, struct pci_subclass *,
+ struct pci_progif *);
struct pnphandler biospcihandler =
{
- "PCI BIOS",
- biospci_enumerate
+ "PCI BIOS",
+ biospci_enumerate
};
-#define PCI_BIOS_PRESENT 0xb101
-#define FIND_PCI_DEVICE 0xb102
-#define FIND_PCI_CLASS_CODE 0xb103
-#define GENERATE_SPECIAL_CYCLE 0xb106
-#define READ_CONFIG_BYTE 0xb108
-#define READ_CONFIG_WORD 0xb109
-#define READ_CONFIG_DWORD 0xb10a
-#define WRITE_CONFIG_BYTE 0xb10b
-#define WRITE_CONFIG_WORD 0xb10c
-#define WRITE_CONFIG_DWORD 0xb10d
-#define GET_IRQ_ROUTING_OPTIONS 0xb10e
-#define SET_PCI_IRQ 0xb10f
+#define PCI_BIOS_PRESENT 0xb101
+#define FIND_PCI_DEVICE 0xb102
+#define FIND_PCI_CLASS_CODE 0xb103
+#define GENERATE_SPECIAL_CYCLE 0xb106
+#define READ_CONFIG_BYTE 0xb108
+#define READ_CONFIG_WORD 0xb109
+#define READ_CONFIG_DWORD 0xb10a
+#define WRITE_CONFIG_BYTE 0xb10b
+#define WRITE_CONFIG_WORD 0xb10c
+#define WRITE_CONFIG_DWORD 0xb10d
+#define GET_IRQ_ROUTING_OPTIONS 0xb10e
+#define SET_PCI_IRQ 0xb10f
-#define PCI_INT 0x1a
+#define PCI_INT 0x1a
-#define PCI_SIGNATURE 0x20494350 /* AKA "PCI " */
+#define PCI_SIGNATURE 0x20494350 /* AKA "PCI " */
void
biospci_detect(void)
{
- uint16_t version, hwcap, maxbus;
- char buf[24];
-
- /* Find the PCI BIOS */
- v86.ctl = V86_FLAGS;
- v86.addr = PCI_INT;
- v86.eax = PCI_BIOS_PRESENT;
- v86.edi = 0x0;
- v86int();
-
- /* Check for OK response */
- if (V86_CY(v86.efl) || ((v86.eax & 0xff00) != 0) ||
- (v86.edx != PCI_SIGNATURE))
- return;
-
- version = v86.ebx & 0xffff;
- hwcap = v86.eax & 0xff;
- maxbus = v86.ecx & 0xff;
+ uint16_t version, hwcap, maxbus;
+ char buf[24];
+
+ /* Find the PCI BIOS */
+ v86.ctl = V86_FLAGS;
+ v86.addr = PCI_INT;
+ v86.eax = PCI_BIOS_PRESENT;
+ v86.edi = 0x0;
+ v86int();
+
+ /* Check for OK response */
+ if (V86_CY(v86.efl) || ((v86.eax & 0xff00) != 0) ||
+ (v86.edx != PCI_SIGNATURE))
+ return;
+
+ version = v86.ebx & 0xffff;
+ hwcap = v86.eax & 0xff;
+ maxbus = v86.ecx & 0xff;
#if 0
- printf("PCI BIOS %d.%d%s%s maxbus %d\n",
- bcd2bin((version >> 8) & 0xf), bcd2bin(version & 0xf),
- (hwcap & 1) ? " config1" : "", (hwcap & 2) ? " config2" : "",
- maxbus);
+ printf("PCI BIOS %d.%d%s%s maxbus %d\n",
+ bcd2bin((version >> 8) & 0xf), bcd2bin(version & 0xf),
+ (hwcap & 1) ? " config1" : "", (hwcap & 2) ? " config2" : "",
+ maxbus);
#endif
- sprintf(buf, "%d", bcd2bin((version >> 8) & 0xf));
- setenv("pcibios.major", buf, 1);
- sprintf(buf, "%d", bcd2bin(version & 0xf));
- setenv("pcibios.minor", buf, 1);
- sprintf(buf, "%d", !!(hwcap & 1));
- setenv("pcibios.config1", buf, 1);
- sprintf(buf, "%d", !!(hwcap & 2));
- setenv("pcibios.config2", buf, 1);
- sprintf(buf, "%d", maxbus);
- setenv("pcibios.maxbus", buf, 1);
-
+ sprintf(buf, "%d", bcd2bin((version >> 8) & 0xf));
+ setenv("pcibios.major", buf, 1);
+ sprintf(buf, "%d", bcd2bin(version & 0xf));
+ setenv("pcibios.minor", buf, 1);
+ sprintf(buf, "%d", !!(hwcap & 1));
+ setenv("pcibios.config1", buf, 1);
+ sprintf(buf, "%d", !!(hwcap & 2));
+ setenv("pcibios.config2", buf, 1);
+ sprintf(buf, "%d", maxbus);
+ setenv("pcibios.maxbus", buf, 1);
}
static void
biospci_enumerate(void)
{
- int device_index, err;
- uint32_t locator, devid;
- struct pci_class *pc;
- struct pci_subclass *psc;
- struct pci_progif *ppi;
-
- /* Iterate over known classes */
- for (pc = pci_classes; pc->pc_class >= 0; pc++) {
- /* Iterate over subclasses */
- for (psc = pc->pc_subclass; psc->ps_subclass >= 0; psc++) {
- /* Iterate over programming interfaces */
- for (ppi = psc->ps_progif; ppi->pi_code >= 0; ppi++) {
-
- /* Scan for matches */
- for (device_index = 0; ; device_index++) {
- /* Look for a match */
- err = biospci_find_devclass((pc->pc_class << 16)
- + (psc->ps_subclass << 8) + ppi->pi_code,
- device_index, &locator);
- if (err != 0)
- break;
-
- /* Read the device identifier from the nominated device */
- err = biospci_read_config(locator, 0, 2, &devid);
- if (err != 0)
- break;
-
- /* We have the device ID, create a PnP object and save everything */
- biospci_addinfo(devid, pc, psc, ppi);
+ int device_index, err;
+ uint32_t locator, devid;
+ struct pci_class *pc;
+ struct pci_subclass *psc;
+ struct pci_progif *ppi;
+
+ /* Iterate over known classes */
+ for (pc = pci_classes; pc->pc_class >= 0; pc++) {
+ /* Iterate over subclasses */
+ for (psc = pc->pc_subclass; psc->ps_subclass >= 0; psc++) {
+ /* Iterate over programming interfaces */
+ for (ppi = psc->ps_progif; ppi->pi_code >= 0; ppi++) {
+
+ /* Scan for matches */
+ for (device_index = 0; ; device_index++) {
+ /* Look for a match */
+ err = biospci_find_devclass(
+ (pc->pc_class << 16) +
+ (psc->ps_subclass << 8) +
+ ppi->pi_code,
+ device_index, &locator);
+ if (err != 0)
+ break;
+
+ /*
+ * Read the device identifier from
+ * the nominated device
+ */
+ err = biospci_read_config(locator,
+ 0, 2, &devid);
+ if (err != 0)
+ break;
+
+ /*
+ * We have the device ID, create a PnP
+ * object and save everything
+ */
+ biospci_addinfo(devid, pc, psc, ppi);
+ }
+ }
}
- }
}
- }
}
static void
-biospci_addinfo(int devid, struct pci_class *pc, struct pci_subclass *psc, struct pci_progif *ppi)
+biospci_addinfo(int devid, struct pci_class *pc, struct pci_subclass *psc,
+ struct pci_progif *ppi)
{
- struct pnpinfo *pi;
- char desc[80];
-
-
- /* build the description */
- desc[0] = 0;
- if (ppi->pi_name != NULL) {
- strcat(desc, ppi->pi_name);
- strcat(desc, " ");
- }
- if (psc->ps_name != NULL) {
- strcat(desc, psc->ps_name);
- strcat(desc, " ");
- }
- if (pc->pc_name != NULL)
- strcat(desc, pc->pc_name);
-
- pi = pnp_allocinfo();
- pi->pi_desc = strdup(desc);
- sprintf(desc,"0x%08x", devid);
- pnp_addident(pi, desc);
- pnp_addinfo(pi);
+ struct pnpinfo *pi;
+ char desc[80];
+
+
+ /* build the description */
+ desc[0] = 0;
+ if (ppi->pi_name != NULL) {
+ strcat(desc, ppi->pi_name);
+ strcat(desc, " ");
+ }
+ if (psc->ps_name != NULL) {
+ strcat(desc, psc->ps_name);
+ strcat(desc, " ");
+ }
+ if (pc->pc_name != NULL)
+ strcat(desc, pc->pc_name);
+
+ pi = pnp_allocinfo();
+ pi->pi_desc = strdup(desc);
+ sprintf(desc, "0x%08x", devid);
+ pnp_addident(pi, desc);
+ pnp_addinfo(pi);
}
int
@@ -332,7 +343,7 @@ biospci_find_devclass(uint32_t class, int index, uint32_t *locator)
v86.esi = index;
v86int();
- /* error */
+ /* error */
if (V86_CY(v86.efl) || (v86.eax & 0xff00))
return (-1);
@@ -351,7 +362,7 @@ biospci_find_device(uint32_t devid, int index, uint32_t *locator)
v86.esi = index;
v86int();
- /* error */
+ /* error */
if (V86_CY(v86.efl) || (v86.eax & 0xff00))
return (-1);
@@ -373,11 +384,11 @@ biospci_write_config(uint32_t locator, int offset, int width, uint32_t val)
v86.ecx = val;
v86int();
- /* error */
+ /* error */
if (V86_CY(v86.efl) || (v86.eax & 0xff00))
return (-1);
- return(0);
+ return (0);
}
int
@@ -390,7 +401,7 @@ biospci_read_config(uint32_t locator, int offset, int width, uint32_t *val)
v86.edi = offset;
v86int();
- /* error */
+ /* error */
if (V86_CY(v86.efl) || (v86.eax & 0xff00))
return (-1);
@@ -426,7 +437,7 @@ biospci_count_device_type(uint32_t devid)
break;
}
- return i;
+ return (i);
}
/*
@@ -494,7 +505,8 @@ ficlPciBiosReadConfig(ficlVm *pVM)
offset = ficlStackPopInteger(ficlVmGetDataStack(pVM));
locator = ficlStackPopInteger(ficlVmGetDataStack(pVM));
- biospci_read_config(locator, offset, width, &value);
+ value = 0;
+ (void) biospci_read_config(locator, offset, width, &value);
ficlStackPushInteger(ficlVmGetDataStack(pVM), value);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-13 23:26:06 +0000