From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- drivers/tty/ipwireless/hardware.h | 63 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 drivers/tty/ipwireless/hardware.h (limited to 'drivers/tty/ipwireless/hardware.h') diff --git a/drivers/tty/ipwireless/hardware.h b/drivers/tty/ipwireless/hardware.h new file mode 100644 index 000000000..e524a8fcc --- /dev/null +++ b/drivers/tty/ipwireless/hardware.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * IPWireless 3G PCMCIA Network Driver + * + * Original code + * by Stephen Blackheath , + * Ben Martel + * + * Copyrighted as follows: + * Copyright (C) 2004 by Symmetric Systems Ltd (NZ) + * + * Various driver changes and rewrites, port to new kernels + * Copyright (C) 2006-2007 Jiri Kosina + * + * Misc code cleanups and updates + * Copyright (C) 2007 David Sterba + */ + +#ifndef _IPWIRELESS_CS_HARDWARE_H_ +#define _IPWIRELESS_CS_HARDWARE_H_ + +#include +#include +#include + +#define IPW_CONTROL_LINE_CTS 0x0001 +#define IPW_CONTROL_LINE_DCD 0x0002 +#define IPW_CONTROL_LINE_DSR 0x0004 +#define IPW_CONTROL_LINE_RI 0x0008 +#define IPW_CONTROL_LINE_DTR 0x0010 +#define IPW_CONTROL_LINE_RTS 0x0020 + +struct ipw_hardware; +struct ipw_network; + +struct ipw_hardware *ipwireless_hardware_create(void); +void ipwireless_hardware_free(struct ipw_hardware *hw); +irqreturn_t ipwireless_interrupt(int irq, void *dev_id); +int ipwireless_set_DTR(struct ipw_hardware *hw, unsigned int channel_idx, + int state); +int ipwireless_set_RTS(struct ipw_hardware *hw, unsigned int channel_idx, + int state); +int ipwireless_send_packet(struct ipw_hardware *hw, + unsigned int channel_idx, + const unsigned char *data, + unsigned int length, + void (*packet_sent_callback) (void *cb, + unsigned int length), + void *sent_cb_data); +void ipwireless_associate_network(struct ipw_hardware *hw, + struct ipw_network *net); +void ipwireless_stop_interrupts(struct ipw_hardware *hw); +void ipwireless_init_hardware_v1(struct ipw_hardware *hw, + unsigned int base_port, + void __iomem *attr_memory, + void __iomem *common_memory, + int is_v2_card, + void (*reboot_cb) (void *data), + void *reboot_cb_data); +void ipwireless_init_hardware_v2_v3(struct ipw_hardware *hw); +void ipwireless_sleep(unsigned int tenths); + +#endif -- cgit v1.3.1