| /* |
| * Generic Broadcom Home Networking Division (HND) PIO engine HW interface |
| * This supports the following chips: BCM42xx, 44xx, 47xx . |
| * |
| * Copyright (C) 2020, Broadcom. |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2 (the "GPL"), |
| * available at http://www.broadcom.com/licenses/GPLv2.php, with the |
| * following added to such license: |
| * |
| * As a special exception, the copyright holders of this software give you |
| * permission to link this software with independent modules, and to copy and |
| * distribute the resulting executable under terms of your choice, provided that |
| * you also meet, for each linked independent module, the terms and conditions of |
| * the license of that module. An independent module is a module which is not |
| * derived from this software. The special exception does not apply to any |
| * modifications of the software. |
| * |
| * |
| * <<Broadcom-WL-IPTag/Dual:>> |
| */ |
| |
| #ifndef _sbhndpio_h_ |
| #define _sbhndpio_h_ |
| |
| /* PIO structure, |
| * support two PIO format: 2 bytes access and 4 bytes access |
| * basic FIFO register set is per channel(transmit or receive) |
| * a pair of channels is defined for convenience |
| */ |
| |
| /* 2byte-wide pio register set per channel(xmt or rcv) */ |
| typedef volatile struct { |
| uint16 fifocontrol; |
| uint16 fifodata; |
| uint16 fifofree; /* only valid in xmt channel, not in rcv channel */ |
| uint16 PAD; |
| } pio2regs_t; |
| |
| /* a pair of pio channels(tx and rx) */ |
| typedef volatile struct { |
| pio2regs_t tx; |
| pio2regs_t rx; |
| } pio2regp_t; |
| |
| /* 4byte-wide pio register set per channel(xmt or rcv) */ |
| typedef volatile struct { |
| uint32 fifocontrol; |
| uint32 fifodata; |
| } pio4regs_t; |
| |
| /* a pair of pio channels(tx and rx) */ |
| typedef volatile struct { |
| pio4regs_t tx; |
| pio4regs_t rx; |
| } pio4regp_t; |
| |
| #endif /* _sbhndpio_h_ */ |
