/* * include/asm-powerpc/qe_ic.h * * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved. * * Authors: Shlomi Gridish <gridish@freescale.com> * Li Yang <leoli@freescale.com> * * Description: * QE IC external definitions and structure. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #ifndef _ASM_POWERPC_QE_IC_H #define _ASM_POWERPC_QE_IC_H #include <linux/irq.h> #define NUM_OF_QE_IC_GROUPS 6 /* Flags when we init the QE IC */ #define QE_IC_SPREADMODE_GRP_W 0x00000001 #define QE_IC_SPREADMODE_GRP_X 0x00000002 #define QE_IC_SPREADMODE_GRP_Y 0x00000004 #define QE_IC_SPREADMODE_GRP_Z 0x00000008 #define QE_IC_SPREADMODE_GRP_RISCA 0x00000010 #define QE_IC_SPREADMODE_GRP_RISCB 0x00000020 #define QE_IC_LOW_SIGNAL 0x00000100 #define QE_IC_HIGH_SIGNAL 0x00000200 #define QE_IC_GRP_W_PRI0_DEST_SIGNAL_HIGH 0x00001000 #define QE_IC_GRP_W_PRI1_DEST_SIGNAL_HIGH 0x00002000 #define QE_IC_GRP_X_PRI0_DEST_SIGNAL_HIGH 0x00004000 #define QE_IC_GRP_X_PRI1_DEST_SIGNAL_HIGH 0x00008000 #define QE_IC_GRP_Y_PRI0_DEST_SIGNAL_HIGH 0x00010000 #define QE_IC_GRP_Y_PRI1_DEST_SIGNAL_HIGH 0x00020000 #define QE_IC_GRP_Z_PRI0_DEST_SIGNAL_HIGH 0x00040000 #define QE_IC_GRP_Z_PRI1_DEST_SIGNAL_HIGH 0x00080000 #define QE_IC_GRP_RISCA_PRI0_DEST_SIGNAL_HIGH 0x00100000 #define QE_IC_GRP_RISCA_PRI1_DEST_SIGNAL_HIGH 0x00200000 #define QE_IC_GRP_RISCB_PRI0_DEST_SIGNAL_HIGH 0x00400000 #define QE_IC_GRP_RISCB_PRI1_DEST_SIGNAL_HIGH 0x00800000 #define QE_IC_GRP_W_DEST_SIGNAL_SHIFT (12) /* QE interrupt sources groups */ enum qe_ic_grp_id { QE_IC_GRP_W = 0, /* QE interrupt controller group W */ QE_IC_GRP_X, /* QE interrupt controller group X */ QE_IC_GRP_Y, /* QE interrupt controller group Y */ QE_IC_GRP_Z, /* QE interrupt controller group Z */ QE_IC_GRP_RISCA, /* QE interrupt controller RISC group A */ QE_IC_GRP_RISCB /* QE interrupt controller RISC group B */ }; void qe_ic_init(struct device_node *node, unsigned int flags, void (*low_handler)(unsigned int irq, struct irq_desc *desc), void (*high_handler)(unsigned int irq, struct irq_desc *desc)); void qe_ic_set_highest_priority(unsigned int virq, int high); int qe_ic_set_priority(unsigned int virq, unsigned int priority); int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high); struct qe_ic; unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic); unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic); static inline void qe_ic_cascade_low_ipic(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); } static inline void qe_ic_cascade_high_ipic(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); } static inline void qe_ic_cascade_low_mpic(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); desc->chip->eoi(irq); } static inline void qe_ic_cascade_high_mpic(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); desc->chip->eoi(irq); } static inline void qe_ic_cascade_muxed_mpic(unsigned int irq, struct irq_desc *desc) { struct qe_ic *qe_ic = desc->handler_data; unsigned int cascade_irq; cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq == NO_IRQ) cascade_irq = qe_ic_get_low_irq(qe_ic); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); desc->chip->eoi(irq); } #endif /* _ASM_POWERPC_QE_IC_H */