Date: Sat, 9 Jul 2011 14:30:13 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r223885 - head/sys/dev/pci Message-ID: <201107091430.p69EUDf8003975@svn.freebsd.org>
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Author: kib Date: Sat Jul 9 14:30:13 2011 New Revision: 223885 URL: http://svn.freebsd.org/changeset/base/223885 Log: Implement pci_find_class(9), the function to find a pci device by its class. Sponsored by: The FreeBSD Foundation Reviewed by: jhb MFC after: 1 week Modified: head/sys/dev/pci/pci.c head/sys/dev/pci/pcivar.h Modified: head/sys/dev/pci/pci.c ============================================================================== --- head/sys/dev/pci/pci.c Sat Jul 9 14:29:23 2011 (r223884) +++ head/sys/dev/pci/pci.c Sat Jul 9 14:30:13 2011 (r223885) @@ -347,6 +347,21 @@ pci_find_device(uint16_t vendor, uint16_ return (NULL); } +device_t +pci_find_class(uint8_t class, uint8_t subclass) +{ + struct pci_devinfo *dinfo; + + STAILQ_FOREACH(dinfo, &pci_devq, pci_links) { + if (dinfo->cfg.baseclass == class && + dinfo->cfg.subclass == subclass) { + return (dinfo->cfg.dev); + } + } + + return (NULL); +} + static int pci_printf(pcicfgregs *cfg, const char *fmt, ...) { Modified: head/sys/dev/pci/pcivar.h ============================================================================== --- head/sys/dev/pci/pcivar.h Sat Jul 9 14:29:23 2011 (r223884) +++ head/sys/dev/pci/pcivar.h Sat Jul 9 14:30:13 2011 (r223885) @@ -457,6 +457,7 @@ pci_msix_count(device_t dev) device_t pci_find_bsf(uint8_t, uint8_t, uint8_t); device_t pci_find_dbsf(uint32_t, uint8_t, uint8_t, uint8_t); device_t pci_find_device(uint16_t, uint16_t); +device_t pci_find_class(uint8_t class, uint8_t subclass); /* Can be used by drivers to manage the MSI-X table. */ int pci_pending_msix(device_t dev, u_int index);
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