From 00212abe1c16a1cd1fdef6f0fddb2a67e48af934 Mon Sep 17 00:00:00 2001
From: Hugo Santos <hugosantos@nowhere.fake>
Date: Sat, 5 May 2007 00:47:20 +0000
Subject: [PATCH] freebsd compat. layer: a few more methods, preparing for
 pcnet

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21026 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/libs/compat/freebsd_network/compat.c      |  46 +++++++-
 .../freebsd_network/compat/dev/pci/pcireg.h   |   3 +
 .../freebsd_network/compat/dev/pci/pcivar.h   |   1 +
 .../compat/freebsd_network/compat/net/if.h    |   8 ++
 .../freebsd_network/compat/net/if_var.h       |   8 +-
 .../compat/freebsd_network/compat/sys/bus.h   |  14 +++
 .../freebsd_network/compat/sys/haiku-module.h |  17 ++-
 .../freebsd_network/compat/sys/kernel.h       |   3 +-
 .../compat/freebsd_network/compat/sys/mbuf.h  |   7 ++
 .../compat/freebsd_network/compat/sys/mutex.h |   7 ++
 .../compat/freebsd_network/compat/sys/param.h |   3 +
 src/libs/compat/freebsd_network/device.c      |  19 +++-
 src/libs/compat/freebsd_network/if.c          | 104 ++++++++++++++++++
 src/libs/compat/freebsd_network/mbuf.c        |   9 ++
 14 files changed, 241 insertions(+), 8 deletions(-)

diff --git a/src/libs/compat/freebsd_network/compat.c b/src/libs/compat/freebsd_network/compat.c
index 6dc4673a56..37d4e89a41 100644
--- a/src/libs/compat/freebsd_network/compat.c
+++ b/src/libs/compat/freebsd_network/compat.c
@@ -14,6 +14,7 @@
 
 #include <KernelExport.h>
 
+#include <compat/machine/resource.h>
 #include <compat/dev/pci/pcivar.h>
 #include <compat/sys/bus.h>
 
@@ -91,6 +92,34 @@ pci_enable_busmaster(device_t dev)
 }
 
 
+int
+pci_enable_io(device_t dev, int space)
+{
+	/* adapted from FreeBSD's pci_enable_io_method */
+	uint16_t command;
+	int bit = 0;
+
+	switch (space) {
+	case SYS_RES_IOPORT:
+		bit = PCI_command_io;
+		break;
+	case SYS_RES_MEMORY:
+		bit = PCI_command_memory;
+		break;
+	default:
+		return EINVAL;
+	}
+
+	pci_set_command_bit(dev, bit);
+	if (pci_read_config(dev, PCI_command, 2) & bit)
+		return 0;
+
+	device_printf(dev, "pci_enable_io(%d) failed.\n", space);
+
+	return ENXIO;
+}
+
+
 int
 device_printf(device_t dev, const char *format, ...)
 {
@@ -100,7 +129,7 @@ device_printf(device_t dev, const char *format, ...)
 	vsnprintf(buf, sizeof(buf), format, vl);
 	va_end(vl);
 
-	dprintf("[...] %s", buf);
+	dprintf("[%s...] %s", gDriverName, buf);
 	return 0;
 }
 
@@ -165,6 +194,21 @@ printf(const char *format, ...)
 }
 
 
+int
+ffs(int value)
+{
+	int i = 1;
+
+	if (value == 0)
+		return 0;
+
+	for (; !(value & 1); i++)
+		value >>= 1;
+
+	return i;
+}
+
+
 int resource_int_value(const char *name, int unit, const char *resname,
 	int *result)
 {
diff --git a/src/libs/compat/freebsd_network/compat/dev/pci/pcireg.h b/src/libs/compat/freebsd_network/compat/dev/pci/pcireg.h
index c5044cd7ec..d24511b7a9 100644
--- a/src/libs/compat/freebsd_network/compat/dev/pci/pcireg.h
+++ b/src/libs/compat/freebsd_network/compat/dev/pci/pcireg.h
@@ -11,4 +11,7 @@
 #define PCIM_CMD_MEMEN		0x0002
 #define PCIM_CMD_MWRICEN	0x0010
 
+#define PCIR_BARS		0x10
+#define PCIR_BAR(x)		(PCIR_BARS + (x) * 4)
+
 #endif
diff --git a/src/libs/compat/freebsd_network/compat/dev/pci/pcivar.h b/src/libs/compat/freebsd_network/compat/dev/pci/pcivar.h
index 9c1fbb79e7..9c37c88c15 100644
--- a/src/libs/compat/freebsd_network/compat/dev/pci/pcivar.h
+++ b/src/libs/compat/freebsd_network/compat/dev/pci/pcivar.h
@@ -4,6 +4,7 @@
 #include <sys/bus.h>
 
 int pci_enable_busmaster(device_t dev);
+int pci_enable_io(device_t dev, int reg);
 
 uint32_t pci_get_devid(device_t dev);
 void pci_set_intpin(device_t dev, uint8_t pin);
diff --git a/src/libs/compat/freebsd_network/compat/net/if.h b/src/libs/compat/freebsd_network/compat/net/if.h
index 6740ac83a7..4476c3bbce 100644
--- a/src/libs/compat/freebsd_network/compat/net/if.h
+++ b/src/libs/compat/freebsd_network/compat/net/if.h
@@ -28,6 +28,14 @@
 #define IFF_LINK0			0x40000
 
 
+#define LINK_STATE_UNKNOWN	0
+#define LINK_STATE_DOWN		1
+#define LINK_STATE_UP		2
+
+
+#define IFQ_MAXLEN			50
+
+
 struct ifmediareq {
 	char	ifm_name[IFNAMSIZ];	/* if name, e.g. "en0" */
 	int	ifm_current;		/* current media options */
diff --git a/src/libs/compat/freebsd_network/compat/net/if_var.h b/src/libs/compat/freebsd_network/compat/net/if_var.h
index 52338089d5..ba7b067fd6 100644
--- a/src/libs/compat/freebsd_network/compat/net/if_var.h
+++ b/src/libs/compat/freebsd_network/compat/net/if_var.h
@@ -86,6 +86,8 @@ struct	carp_if;
 
 #include <altq/if_altq.h>
 
+#include <net/if_dl.h> /* for sockaddr_dl */
+
 TAILQ_HEAD(ifnethead, ifnet);	/* we use TAILQs so that the order of */
 TAILQ_HEAD(ifaddrhead, ifaddr);	/* instantiation is preserved in the list */
 TAILQ_HEAD(ifprefixhead, ifprefix);
@@ -180,6 +182,9 @@ struct ifnet {
 	struct	task if_starttask;	/* task for IFF_NEEDSGIANT */
 	struct	task if_linktask;	/* task for link change events */
 	struct	mtx if_addr_mtx;	/* mutex to protect address lists */
+
+	/* Haiku additions */
+	struct sockaddr_dl if_lladdr;
 };
 
 typedef void if_init_f_t(void *);
@@ -657,8 +662,7 @@ typedef	void if_com_free_t(void *com, u_char type);
 void	if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
 void	if_deregister_com_alloc(u_char type);
 
-#define IF_LLADDR(ifp)							\
-    LLADDR((struct sockaddr_dl *) ifaddr_byindex((ifp)->if_index)->ifa_addr)
+#define IF_LLADDR(ifp)		LLADDR(&ifp->if_lladdr)
 
 #ifdef DEVICE_POLLING
 enum poll_cmd {	POLL_ONLY, POLL_AND_CHECK_STATUS };
diff --git a/src/libs/compat/freebsd_network/compat/sys/bus.h b/src/libs/compat/freebsd_network/compat/sys/bus.h
index e124e73952..dfa0fcb0d8 100644
--- a/src/libs/compat/freebsd_network/compat/sys/bus.h
+++ b/src/libs/compat/freebsd_network/compat/sys/bus.h
@@ -87,6 +87,20 @@ bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t handle,
 }
 
 
+#define BUS_SPACE_BARRIER_READ		1
+#define BUS_SPACE_BARRIER_WRITE		2
+
+static inline void
+bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t handle,
+	bus_size_t offset, bus_size_t len, int flags)
+{
+	if (flags & BUS_SPACE_BARRIER_READ)
+		__asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory");
+	else
+		__asm__ __volatile__ ("" : : : "memory");
+}
+
+
 enum intr_type {
 	INTR_TYPE_NET	= 4,
 	INTR_MPSAFE		= 512,
diff --git a/src/libs/compat/freebsd_network/compat/sys/haiku-module.h b/src/libs/compat/freebsd_network/compat/sys/haiku-module.h
index bdfe50347c..5de2914227 100644
--- a/src/libs/compat/freebsd_network/compat/sys/haiku-module.h
+++ b/src/libs/compat/freebsd_network/compat/sys/haiku-module.h
@@ -15,6 +15,12 @@ typedef struct devclass *devclass_t;
 
 typedef int (*device_method_signature_t)(device_t dev);
 
+typedef int device_probe_t(device_t dev);
+typedef int device_attach_t(device_t dev);
+typedef int device_detach_t(device_t dev);
+typedef int device_resume_t(device_t dev);
+typedef int device_suspend_t(device_t dev);
+
 struct device_method {
 	const char *name;
 	device_method_signature_t method;
@@ -22,7 +28,7 @@ struct device_method {
 
 typedef struct device_method device_method_t;
 
-#define DEVMETHOD(name, func)	{ #name, (device_method_signature_t)func }
+#define DEVMETHOD(name, func)	{ #name, (device_method_signature_t)&func }
 
 typedef struct {
 	const char *name;
@@ -30,6 +36,7 @@ typedef struct {
 	size_t size;
 } driver_t;
 
+#define BUS_PROBE_LOW_PRIORITY	10
 #define BUS_PROBE_DEFAULT		20
 
 #define DRIVER_MODULE_NAME(name, busname) \
@@ -39,15 +46,18 @@ status_t _fbsd_init_hardware(driver_t *);
 status_t _fbsd_init_driver(driver_t *);
 void _fbsd_uninit_driver(driver_t *);
 
+extern const char gDriverName[];
+
 /* we define the driver methods with HAIKU_FBSD_DRIVER_GLUE to
  * force the rest of the stuff to be linked back with the driver.
  * While gcc 2.95 packs everything from the static library onto
  * the final binary, gcc 4.x rightfuly doesn't. */
 
-#define HAIKU_FBSD_DRIVER_GLUE(name, busname) \
+#define HAIKU_FBSD_DRIVER_GLUE(publicname, name, busname) \
 	extern char *gDevNameList[]; \
 	extern device_hooks gDeviceHooks; \
 	extern driver_t *DRIVER_MODULE_NAME(name, busname); \
+	const char gDriverName[] = #publicname; \
 	int32 api_version = B_CUR_DRIVER_API_VERSION; \
 	status_t init_hardware() \
 	{ \
@@ -64,6 +74,9 @@ void _fbsd_uninit_driver(driver_t *);
 	const char **publish_devices() { return (const char **)gDevNameList; } \
 	device_hooks *find_device(const char *name) { return &gDeviceHooks; }
 
+#define DEFINE_CLASS_0(name, driver, methods, size) \
+	driver_t driver = { #name, methods, size }
+
 #define DRIVER_MODULE(name, busname, driver, devclass, evh, arg) \
 	driver_t *DRIVER_MODULE_NAME(name, busname) = &(driver)
 
diff --git a/src/libs/compat/freebsd_network/compat/sys/kernel.h b/src/libs/compat/freebsd_network/compat/sys/kernel.h
index 7d77ccd8be..715ea1086a 100644
--- a/src/libs/compat/freebsd_network/compat/sys/kernel.h
+++ b/src/libs/compat/freebsd_network/compat/sys/kernel.h
@@ -28,7 +28,8 @@ struct __system_init {
 #define SYSINIT(uniquifier, subsystem, order, func, ident) \
 	struct __system_init __init_##uniquifier = { func }
 
-#define __printflike(a, b) __attribute__ ((format (__printf__, a, b)))
+#define __packed			__attribute__ ((packed))
+#define __printflike(a, b)	__attribute__ ((format (__printf__, a, b)))
 
 int printf(const char *format, ...) __printflike(1, 2);
 
diff --git a/src/libs/compat/freebsd_network/compat/sys/mbuf.h b/src/libs/compat/freebsd_network/compat/sys/mbuf.h
index bca639d086..643080a828 100644
--- a/src/libs/compat/freebsd_network/compat/sys/mbuf.h
+++ b/src/libs/compat/freebsd_network/compat/sys/mbuf.h
@@ -7,6 +7,8 @@
 #define MLEN		((int)(MSIZE - sizeof(struct m_hdr)))
 #define MHLEN		((int)(MSIZE - sizeof(struct pkthdr)))
 
+#define MINCLSIZE	(MHLEN + 1)
+
 #ifdef _KERNEL
 
 struct m_hdr {
@@ -82,6 +84,10 @@ struct mbuf {
 #define CSUM_PSEUDO_HDR	0x0800
 #define CSUM_DELAY_DATA	(CSUM_TCP | CSUM_UDP)
 
+#define MGET(m, how, type)		((m) = m_get((how), (type)))
+#define MGETHDR(m, how, type)	((m) = m_gethdr((how), (type)))
+#define MCLGET(m, how)			m_clget((m), (how))
+
 struct mbuf *m_getcl(int how, short type, int flags);
 void m_freem(struct mbuf *mbuf);
 struct mbuf *m_free(struct mbuf *m);
@@ -94,6 +100,7 @@ void m_copydata(const struct mbuf *m, int off, int len, caddr_t cp);
 
 struct mbuf *m_get(int how, short type);
 struct mbuf *m_gethdr(int how, short type);
+void m_clget(struct mbuf *m, int how);
 
 #define mtod(m, type)	(type)((m)->m_data)
 
diff --git a/src/libs/compat/freebsd_network/compat/sys/mutex.h b/src/libs/compat/freebsd_network/compat/sys/mutex.h
index 54d84df786..d7be3d34ec 100644
--- a/src/libs/compat/freebsd_network/compat/sys/mutex.h
+++ b/src/libs/compat/freebsd_network/compat/sys/mutex.h
@@ -43,6 +43,13 @@ static inline void mtx_unlock(struct mtx *mtx)
 }
 
 
+static inline int mtx_initialized(struct mtx *mtx)
+{
+	/* XXX */
+	return 1;
+}
+
+
 void mtx_init(struct mtx *m, const char *name, const char *type, int opts);
 void mtx_destroy(struct mtx *m);
 
diff --git a/src/libs/compat/freebsd_network/compat/sys/param.h b/src/libs/compat/freebsd_network/compat/sys/param.h
index f5d99e9cd3..10dfecf593 100644
--- a/src/libs/compat/freebsd_network/compat/sys/param.h
+++ b/src/libs/compat/freebsd_network/compat/sys/param.h
@@ -30,4 +30,7 @@
 
 #define MCLBYTES	(1 << MCLSHIFT)
 
+#define ALIGN_BYTES		(sizeof(int) - 1)
+#define ALIGN(x)		((((unsigned)x) + ALIGN_BYTES) & ~ALIGN_BYTES)
+
 #endif
diff --git a/src/libs/compat/freebsd_network/device.c b/src/libs/compat/freebsd_network/device.c
index 63537d2c5f..1b0d8e8a40 100644
--- a/src/libs/compat/freebsd_network/device.c
+++ b/src/libs/compat/freebsd_network/device.c
@@ -122,13 +122,18 @@ _fbsd_init_hardware(driver_t *driver)
 	pci_info info;
 	int i;
 
+	dprintf("%s: init_hardware(%p)\n", gDriverName, driver);
+
+	if (get_module(B_PCI_MODULE_NAME, (module_info **)&gPci) < B_OK)
+		return B_ERROR;
+
 	for (i = 0; probe == NULL && driver->methods[i].name != NULL; i++) {
 		if (strcmp(driver->methods[i].name, "device_probe") == 0)
 			probe = driver->methods[i].method;
 	}
 
 	if (probe == NULL) {
-		dprintf("_fbsd_init_hardware: driver has no device_probe method.\n");
+		dprintf("%s: driver has no device_probe method.\n", gDriverName);
 		return B_ERROR;
 	}
 
@@ -136,10 +141,17 @@ _fbsd_init_hardware(driver_t *driver)
 	fakeDevice.pciInfo = &info;
 
 	for (i = 0; gPci->get_nth_pci_info(i, &info) == B_OK; i++) {
-		if (probe(&fakeDevice) >= 0)
+		if (probe(&fakeDevice) >= 0) {
+			dprintf("%s, found %s at %i\n", gDriverName,
+				fakeDevice.description, i);
+			put_module(B_PCI_MODULE_NAME);
 			return B_OK;
+		}
 	}
 
+	dprintf("%s: no hardware found.\n", gDriverName);
+	put_module(B_PCI_MODULE_NAME);
+
 	return B_ERROR;
 }
 
@@ -147,6 +159,8 @@ _fbsd_init_hardware(driver_t *driver)
 status_t
 _fbsd_init_driver(driver_t *driver)
 {
+	dprintf("%s: init_driver(%p)\n", gDriverName, driver);
+
 	return B_ERROR;
 }
 
@@ -154,4 +168,5 @@ _fbsd_init_driver(driver_t *driver)
 void
 _fbsd_uninit_driver(driver_t *driver)
 {
+	dprintf("%s: uninit_driver(%p)\n", gDriverName, driver);
 }
diff --git a/src/libs/compat/freebsd_network/if.c b/src/libs/compat/freebsd_network/if.c
index eea124dc50..5b1ced2e12 100644
--- a/src/libs/compat/freebsd_network/if.c
+++ b/src/libs/compat/freebsd_network/if.c
@@ -85,6 +85,33 @@ if_start(struct ifnet *ifp)
 }
 
 
+int
+if_printf(struct ifnet *ifp, const char *format, ...)
+{
+	char buf[256];
+	va_list vl;
+	va_start(vl, format);
+	vsnprintf(buf, sizeof(buf), format, vl);
+	va_end(vl);
+
+	dprintf("[%s] %s", ifp->if_xname, buf);
+	return 0;
+}
+
+
+void
+if_link_state_change(struct ifnet *ifp, int link_state)
+{
+	if (ifp->if_link_state == link_state)
+		return;
+
+	ifp->if_link_state = link_state;
+
+	/* XXX */
+	/* wake network stack's link state sem */
+}
+
+
 int
 ether_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst,
 	struct rtentry *rt0)
@@ -116,6 +143,9 @@ ether_ifattach(struct ifnet *ifp, const uint8_t *mac_address)
 	ifp->if_input = ether_input;
 	ifp->if_resolvemulti = NULL; /* done in the stack */
 
+	ifp->if_lladdr.sdl_family = AF_LINK;
+	memcpy(IF_LLADDR(ifp), mac_address, ETHER_ADDR_LEN);
+
 	ifp->if_init(ifp->if_softc);
 }
 
@@ -127,6 +157,80 @@ ether_ifdetach(struct ifnet *ifp)
 }
 
 
+#if 0
+/*
+ * This is for reference.  We have a table-driven version
+ * of the little-endian crc32 generator, which is faster
+ * than the double-loop.
+ */
+uint32_t
+ether_crc32_le(const uint8_t *buf, size_t len)
+{
+	size_t i;
+	uint32_t crc;
+	int bit;
+	uint8_t data;
+
+	crc = 0xffffffff;	/* initial value */
+
+	for (i = 0; i < len; i++) {
+		for (data = *buf++, bit = 0; bit < 8; bit++, data >>= 1)
+			carry = (crc ^ data) & 1;
+			crc >>= 1;
+			if (carry)
+				crc = (crc ^ ETHER_CRC_POLY_LE);
+	}
+
+	return (crc);
+}
+#else
+uint32_t
+ether_crc32_le(const uint8_t *buf, size_t len)
+{
+	static const uint32_t crctab[] = {
+		0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac,
+		0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
+		0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c,
+		0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c
+	};
+	size_t i;
+	uint32_t crc;
+
+	crc = 0xffffffff;	/* initial value */
+
+	for (i = 0; i < len; i++) {
+		crc ^= buf[i];
+		crc = (crc >> 4) ^ crctab[crc & 0xf];
+		crc = (crc >> 4) ^ crctab[crc & 0xf];
+	}
+
+	return (crc);
+}
+#endif
+
+uint32_t
+ether_crc32_be(const uint8_t *buf, size_t len)
+{
+	size_t i;
+	uint32_t crc, carry;
+	int bit;
+	uint8_t data;
+
+	crc = 0xffffffff;	/* initial value */
+
+	for (i = 0; i < len; i++) {
+		for (data = *buf++, bit = 0; bit < 8; bit++, data >>= 1) {
+			carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
+			crc <<= 1;
+			if (carry)
+				crc = (crc ^ ETHER_CRC_POLY_BE) | carry;
+		}
+	}
+
+	return (crc);
+}
+
+
 int
 ether_ioctl(struct ifnet *ifp, int command, caddr_t data)
 {
diff --git a/src/libs/compat/freebsd_network/mbuf.c b/src/libs/compat/freebsd_network/mbuf.c
index 5f5f4985d9..6f06396766 100644
--- a/src/libs/compat/freebsd_network/mbuf.c
+++ b/src/libs/compat/freebsd_network/mbuf.c
@@ -146,6 +146,15 @@ m_gethdr(int how, short type)
 }
 
 
+void
+m_clget(struct mbuf *m, int how)
+{
+	m->m_ext.ext_buf = NULL;
+	/* called checks for errors by looking for M_EXT */
+	construct_ext_mbuf(m, how);
+}
+
+
 void
 m_freem(struct mbuf *mb)
 {