xref: /linux/drivers/gpu/drm/amd/display/dc/gpio/dce60/hw_factory_dce60.c (revision a460513ed4b6994bfeb7bd86f72853140bc1ac12)
1 /*
2  * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
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 #include "include/gpio_types.h"
28 #include "../hw_factory.h"
29 
30 #include "hw_factory_dce60.h"
31 
32 #include "../hw_gpio.h"
33 #include "../hw_ddc.h"
34 #include "../hw_hpd.h"
35 #include "../hw_generic.h"
36 
37 #include "dce/dce_6_0_d.h"
38 #include "dce/dce_6_0_sh_mask.h"
39 
40 
41 #define REG(reg_name)\
42 		mm ## reg_name
43 
44 #include "reg_helper.h"
45 #include "../hpd_regs.h"
46 
47 #define HPD_REG_LIST_DCE6(id) \
48 	HPD_GPIO_REG_LIST(id), \
49 	.int_status = mmDC_HPD ## id ## _INT_STATUS,\
50 	.toggle_filt_cntl = mmDC_HPD ## id ## _TOGGLE_FILT_CNTL
51 
52 #define HPD_MASK_SH_LIST_DCE6(mask_sh) \
53 		.DC_HPD_SENSE_DELAYED = DC_HPD1_INT_STATUS__DC_HPD1_SENSE_DELAYED ## mask_sh,\
54 		.DC_HPD_SENSE = DC_HPD1_INT_STATUS__DC_HPD1_SENSE ## mask_sh,\
55 		.DC_HPD_CONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_CONNECT_INT_DELAY ## mask_sh,\
56 		.DC_HPD_DISCONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_DISCONNECT_INT_DELAY ## mask_sh
57 
58 #define hpd_regs(id) \
59 {\
60 	HPD_REG_LIST_DCE6(id)\
61 }
62 
63 static const struct hpd_registers hpd_regs[] = {
64 	hpd_regs(1),
65 	hpd_regs(2),
66 	hpd_regs(3),
67 	hpd_regs(4),
68 	hpd_regs(5),
69 	hpd_regs(6)
70 };
71 
72 static const struct hpd_sh_mask hpd_shift = {
73 		HPD_MASK_SH_LIST_DCE6(__SHIFT)
74 };
75 
76 static const struct hpd_sh_mask hpd_mask = {
77 		HPD_MASK_SH_LIST_DCE6(_MASK)
78 };
79 
80 #include "../ddc_regs.h"
81 
82  /* set field name */
83 #define SF_DDC(reg_name, field_name, post_fix)\
84 	.field_name = reg_name ## __ ## field_name ## post_fix
85 
86 static const struct ddc_registers ddc_data_regs[] = {
87 	ddc_data_regs(1),
88 	ddc_data_regs(2),
89 	ddc_data_regs(3),
90 	ddc_data_regs(4),
91 	ddc_data_regs(5),
92 	ddc_data_regs(6),
93 	ddc_vga_data_regs,
94 	ddc_i2c_data_regs
95 };
96 
97 static const struct ddc_registers ddc_clk_regs[] = {
98 	ddc_clk_regs(1),
99 	ddc_clk_regs(2),
100 	ddc_clk_regs(3),
101 	ddc_clk_regs(4),
102 	ddc_clk_regs(5),
103 	ddc_clk_regs(6),
104 	ddc_vga_clk_regs,
105 	ddc_i2c_clk_regs
106 };
107 
108 static const struct ddc_sh_mask ddc_shift = {
109 		DDC_MASK_SH_LIST(__SHIFT)
110 };
111 
112 static const struct ddc_sh_mask ddc_mask = {
113 		DDC_MASK_SH_LIST(_MASK)
114 };
115 
116 static void define_ddc_registers(
117 		struct hw_gpio_pin *pin,
118 		uint32_t en)
119 {
120 	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
121 
122 	switch (pin->id) {
123 	case GPIO_ID_DDC_DATA:
124 		ddc->regs = &ddc_data_regs[en];
125 		ddc->base.regs = &ddc_data_regs[en].gpio;
126 		break;
127 	case GPIO_ID_DDC_CLOCK:
128 		ddc->regs = &ddc_clk_regs[en];
129 		ddc->base.regs = &ddc_clk_regs[en].gpio;
130 		break;
131 	default:
132 		ASSERT_CRITICAL(false);
133 		return;
134 	}
135 
136 	ddc->shifts = &ddc_shift;
137 	ddc->masks = &ddc_mask;
138 
139 }
140 
141 static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
142 {
143 	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
144 
145 	hpd->regs = &hpd_regs[en];
146 	hpd->shifts = &hpd_shift;
147 	hpd->masks = &hpd_mask;
148 	hpd->base.regs = &hpd_regs[en].gpio;
149 }
150 
151 static const struct hw_factory_funcs funcs = {
152 	.init_ddc_data = dal_hw_ddc_init,
153 	.init_generic = NULL,
154 	.init_hpd = dal_hw_hpd_init,
155 	.get_ddc_pin = dal_hw_ddc_get_pin,
156 	.get_hpd_pin = dal_hw_hpd_get_pin,
157 	.get_generic_pin = NULL,
158 	.define_hpd_registers = define_hpd_registers,
159 	.define_ddc_registers = define_ddc_registers
160 };
161 
162 void dal_hw_factory_dce60_init(
163 	struct hw_factory *factory)
164 {
165 	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
166 	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
167 	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
168 	factory->number_of_pins[GPIO_ID_HPD] = 6;
169 	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
170 	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
171 	factory->number_of_pins[GPIO_ID_SYNC] = 2;
172 	factory->number_of_pins[GPIO_ID_GSL] = 4;
173 
174 	factory->funcs = &funcs;
175 }
176