1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright © 2023 Dmitry Salychev
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/types.h>
29 #include <sys/param.h>
30 #include <sys/systm.h>
31
32 #include <machine/bus.h>
33
34 #include "dpaa2_types.h"
35
36 #define COMPARE_TYPE(t, v) (strncmp((v), (t), strlen((v))) == 0)
37
38 /**
39 * @brief Convert DPAA2 device type to string.
40 */
41 const char *
dpaa2_ttos(enum dpaa2_dev_type type)42 dpaa2_ttos(enum dpaa2_dev_type type)
43 {
44 switch (type) {
45 case DPAA2_DEV_MC:
46 return ("mc"); /* NOTE: to print as information only. */
47 case DPAA2_DEV_RC:
48 return ("dprc");
49 case DPAA2_DEV_IO:
50 return ("dpio");
51 case DPAA2_DEV_NI:
52 return ("dpni");
53 case DPAA2_DEV_MCP:
54 return ("dpmcp");
55 case DPAA2_DEV_BP:
56 return ("dpbp");
57 case DPAA2_DEV_CON:
58 return ("dpcon");
59 case DPAA2_DEV_MAC:
60 return ("dpmac");
61 case DPAA2_DEV_MUX:
62 return ("dpdmux");
63 case DPAA2_DEV_SW:
64 return ("dpsw");
65 default:
66 break;
67 }
68
69 return ("notype");
70 }
71
72 /**
73 * @brief Convert string to DPAA2 device type.
74 */
75 enum dpaa2_dev_type
dpaa2_stot(const char * str)76 dpaa2_stot(const char *str)
77 {
78 if (COMPARE_TYPE(str, "dprc")) {
79 return (DPAA2_DEV_RC);
80 } else if (COMPARE_TYPE(str, "dpio")) {
81 return (DPAA2_DEV_IO);
82 } else if (COMPARE_TYPE(str, "dpni")) {
83 return (DPAA2_DEV_NI);
84 } else if (COMPARE_TYPE(str, "dpmcp")) {
85 return (DPAA2_DEV_MCP);
86 } else if (COMPARE_TYPE(str, "dpbp")) {
87 return (DPAA2_DEV_BP);
88 } else if (COMPARE_TYPE(str, "dpcon")) {
89 return (DPAA2_DEV_CON);
90 } else if (COMPARE_TYPE(str, "dpmac")) {
91 return (DPAA2_DEV_MAC);
92 } else if (COMPARE_TYPE(str, "dpdmux")) {
93 return (DPAA2_DEV_MUX);
94 } else if (COMPARE_TYPE(str, "dpsw")) {
95 return (DPAA2_DEV_SW);
96 }
97
98 return (DPAA2_DEV_NOTYPE);
99 }
100
101 /**
102 * @brief Callback to obtain a physical address of the only DMA segment mapped.
103 */
104 void
dpaa2_dmamap_oneseg_cb(void * arg,bus_dma_segment_t * segs,int nseg,int error)105 dpaa2_dmamap_oneseg_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
106 {
107 if (error == 0) {
108 KASSERT(nseg == 1, ("%s: too many segments: nseg=%d\n",
109 __func__, nseg));
110 *(bus_addr_t *)arg = segs[0].ds_addr;
111 } else {
112 panic("%s: error=%d\n", __func__, error);
113 }
114 }
115