1 /*
2  * Copyright 2012-15 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 
28 #include "include/irq_service_interface.h"
29 #include "include/logger_interface.h"
30 
31 #include "dce110/irq_service_dce110.h"
32 
33 
34 #include "dce80/irq_service_dce80.h"
35 
36 #include "dce120/irq_service_dce120.h"
37 
38 #include "reg_helper.h"
39 #include "irq_service.h"
40 
41 
42 
43 #define CTX \
44 		irq_service->ctx
45 
46 bool dal_irq_service_construct(
47 	struct irq_service *irq_service,
48 	struct irq_service_init_data *init_data)
49 {
50 	if (!init_data || !init_data->ctx)
51 		return false;
52 
53 	irq_service->ctx = init_data->ctx;
54 	return true;
55 }
56 
57 void dal_irq_service_destroy(struct irq_service **irq_service)
58 {
59 	if (!irq_service || !*irq_service) {
60 		BREAK_TO_DEBUGGER();
61 		return;
62 	}
63 
64 	dm_free(*irq_service);
65 
66 	*irq_service = NULL;
67 }
68 
69 const struct irq_source_info *find_irq_source_info(
70 	struct irq_service *irq_service,
71 	enum dc_irq_source source)
72 {
73 	if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
74 		return NULL;
75 
76 	return &irq_service->info[source];
77 }
78 
79 void dal_irq_service_set_generic(
80 	struct irq_service *irq_service,
81 	const struct irq_source_info *info,
82 	bool enable)
83 {
84 	uint32_t addr = info->enable_reg;
85 	uint32_t value = dm_read_reg(irq_service->ctx, addr);
86 
87 	value = (value & ~info->enable_mask) |
88 		(info->enable_value[enable ? 0 : 1] & info->enable_mask);
89 	dm_write_reg(irq_service->ctx, addr, value);
90 }
91 
92 bool dal_irq_service_set(
93 	struct irq_service *irq_service,
94 	enum dc_irq_source source,
95 	bool enable)
96 {
97 	const struct irq_source_info *info =
98 		find_irq_source_info(irq_service, source);
99 
100 	if (!info) {
101 		dm_logger_write(
102 			irq_service->ctx->logger, LOG_ERROR,
103 			"%s: cannot find irq info table entry for %d\n",
104 			__func__,
105 			source);
106 		return false;
107 	}
108 
109 	dal_irq_service_ack(irq_service, source);
110 
111 	if (info->funcs->set)
112 		return info->funcs->set(irq_service, info, enable);
113 
114 	dal_irq_service_set_generic(irq_service, info, enable);
115 
116 	return true;
117 }
118 
119 void dal_irq_service_ack_generic(
120 	struct irq_service *irq_service,
121 	const struct irq_source_info *info)
122 {
123 	uint32_t addr = info->ack_reg;
124 	uint32_t value = dm_read_reg(irq_service->ctx, addr);
125 
126 	value = (value & ~info->ack_mask) |
127 		(info->ack_value & info->ack_mask);
128 	dm_write_reg(irq_service->ctx, addr, value);
129 }
130 
131 bool dal_irq_service_ack(
132 	struct irq_service *irq_service,
133 	enum dc_irq_source source)
134 {
135 	const struct irq_source_info *info =
136 		find_irq_source_info(irq_service, source);
137 
138 	if (!info) {
139 		dm_logger_write(
140 			irq_service->ctx->logger, LOG_ERROR,
141 			"%s: cannot find irq info table entry for %d\n",
142 			__func__,
143 			source);
144 		return false;
145 	}
146 
147 	if (info->funcs->ack)
148 		return info->funcs->ack(irq_service, info);
149 
150 	dal_irq_service_ack_generic(irq_service, info);
151 
152 	return true;
153 }
154 
155 enum dc_irq_source dal_irq_service_to_irq_source(
156 		struct irq_service *irq_service,
157 		uint32_t src_id,
158 		uint32_t ext_id)
159 {
160 	return irq_service->funcs->to_dal_irq_source(
161 		irq_service,
162 		src_id,
163 		ext_id);
164 }
165