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 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/types.h> 33 #include <sys/kernel.h> 34 #include <sys/malloc.h> 35 36 #include <linux/kernel.h> /* pr_debug */ 37 #include <linux/mhi.h> 38 39 static MALLOC_DEFINE(M_LKPIMHI, "lkpimhi", "LinuxKPI MHI compat"); 40 41 struct mhi_controller * 42 linuxkpi_mhi_alloc_controller(void) 43 { 44 struct mhi_controller *mhi_ctrl; 45 46 mhi_ctrl = malloc(sizeof(*mhi_ctrl), M_LKPIMHI, M_NOWAIT | M_ZERO); 47 48 return (mhi_ctrl); 49 } 50 51 void 52 linuxkpi_mhi_free_controller(struct mhi_controller *mhi_ctrl) 53 { 54 55 /* What else do we need to check that it is gone? */ 56 free(mhi_ctrl, M_LKPIMHI); 57 } 58 59 int 60 linuxkpi_mhi_register_controller(struct mhi_controller *mhi_ctrl, 61 const struct mhi_controller_config *cfg) 62 { 63 64 if (mhi_ctrl == NULL || cfg == NULL) 65 return (-EINVAL); 66 67 #define CHECK_FIELD(_f) \ 68 if (!mhi_ctrl->_f) \ 69 return (-ENXIO); 70 CHECK_FIELD(cntrl_dev); 71 CHECK_FIELD(regs); 72 CHECK_FIELD(irq); 73 CHECK_FIELD(reg_len); 74 CHECK_FIELD(nr_irqs); 75 76 CHECK_FIELD(runtime_get); 77 CHECK_FIELD(runtime_put); 78 CHECK_FIELD(status_cb); 79 CHECK_FIELD(read_reg); 80 CHECK_FIELD(write_reg); 81 #undef CHECK_FIELD 82 83 printf("%s: XXX-BZ TODO\n", __func__); 84 return (0); 85 } 86 87 void 88 linuxkpi_mhi_unregister_controller(struct mhi_controller *mhi_ctrl) 89 { 90 91 pr_debug("%s: TODO\n", __func__); 92 } 93