1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2022 Bjoern A. Zeeb 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/types.h> 35 #include <sys/kernel.h> 36 #include <sys/malloc.h> 37 38 #include <linux/kernel.h> /* pr_debug */ 39 #include <linux/mhi.h> 40 41 static MALLOC_DEFINE(M_LKPIMHI, "lkpimhi", "LinuxKPI MHI compat"); 42 43 struct mhi_controller * 44 linuxkpi_mhi_alloc_controller(void) 45 { 46 struct mhi_controller *mhi_ctrl; 47 48 mhi_ctrl = malloc(sizeof(*mhi_ctrl), M_LKPIMHI, M_NOWAIT | M_ZERO); 49 50 return (mhi_ctrl); 51 } 52 53 void 54 linuxkpi_mhi_free_controller(struct mhi_controller *mhi_ctrl) 55 { 56 57 /* What else do we need to check that it is gone? */ 58 free(mhi_ctrl, M_LKPIMHI); 59 } 60 61 int 62 linuxkpi_mhi_register_controller(struct mhi_controller *mhi_ctrl, 63 const struct mhi_controller_config *cfg) 64 { 65 66 if (mhi_ctrl == NULL || cfg == NULL) 67 return (-EINVAL); 68 69 #define CHECK_FIELD(_f) \ 70 if (!mhi_ctrl->_f) \ 71 return (-ENXIO); 72 CHECK_FIELD(cntrl_dev); 73 CHECK_FIELD(regs); 74 CHECK_FIELD(irq); 75 CHECK_FIELD(reg_len); 76 CHECK_FIELD(nr_irqs); 77 78 CHECK_FIELD(runtime_get); 79 CHECK_FIELD(runtime_put); 80 CHECK_FIELD(status_cb); 81 CHECK_FIELD(read_reg); 82 CHECK_FIELD(write_reg); 83 #undef CHECK_FIELD 84 85 printf("%s: XXX-BZ TODO\n", __func__); 86 return (0); 87 } 88 89 void 90 linuxkpi_mhi_unregister_controller(struct mhi_controller *mhi_ctrl) 91 { 92 93 pr_debug("%s: TODO\n", __func__); 94 } 95