1*5113495bSYour Name /*
2*5113495bSYour Name * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
3*5113495bSYour Name * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
4*5113495bSYour Name *
5*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for any
6*5113495bSYour Name * purpose with or without fee is hereby granted, provided that the above
7*5113495bSYour Name * copyright notice and this permission notice appear in all copies.
8*5113495bSYour Name *
9*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10*5113495bSYour Name * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11*5113495bSYour Name * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12*5113495bSYour Name * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13*5113495bSYour Name * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14*5113495bSYour Name * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15*5113495bSYour Name * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16*5113495bSYour Name */
17*5113495bSYour Name
18*5113495bSYour Name #include <osdep.h>
19*5113495bSYour Name #include <wmi.h>
20*5113495bSYour Name #include <wmi_unified_priv.h>
21*5113495bSYour Name #include <wmi_unified_gpio_api.h>
22*5113495bSYour Name
23*5113495bSYour Name /**
24*5113495bSYour Name * convert_gpio_direction() - Function to convert unified gpio direction
25*5113495bSYour Name * @dir: pointer to enum gpio_direction
26*5113495bSYour Name *
27*5113495bSYour Name * Convert the wmi unified gpio direction to FW TLV WMI gpio direction
28*5113495bSYour Name *
29*5113495bSYour Name * Return:
30*5113495bSYour Name * 0 - Output
31*5113495bSYour Name * 1 - Input
32*5113495bSYour Name */
33*5113495bSYour Name static uint32_t
convert_gpio_direction(enum gpio_direction dir)34*5113495bSYour Name convert_gpio_direction(enum gpio_direction dir)
35*5113495bSYour Name {
36*5113495bSYour Name switch (dir) {
37*5113495bSYour Name case WMI_HOST_GPIO_INPUT:
38*5113495bSYour Name return WMI_FW_GPIO_INPUT;
39*5113495bSYour Name case WMI_HOST_GPIO_OUTPUT:
40*5113495bSYour Name return WMI_FW_GPIO_OUTPUT;
41*5113495bSYour Name default:
42*5113495bSYour Name return WMI_FW_GPIO_OUTPUT;
43*5113495bSYour Name }
44*5113495bSYour Name }
45*5113495bSYour Name
46*5113495bSYour Name /**
47*5113495bSYour Name * convert_gpio_pull_type() - Function to convert unified pull type
48*5113495bSYour Name * @pull_type: pointer to enum gpio_pull_type
49*5113495bSYour Name *
50*5113495bSYour Name * Convert the wmi unified pull type to FW TLV WMI gpio pull type
51*5113495bSYour Name *
52*5113495bSYour Name * Return: FW TLV WMI gpio pull type
53*5113495bSYour Name */
54*5113495bSYour Name static uint32_t
convert_gpio_pull_type(enum gpio_pull_type pull_type)55*5113495bSYour Name convert_gpio_pull_type(enum gpio_pull_type pull_type)
56*5113495bSYour Name {
57*5113495bSYour Name switch (pull_type) {
58*5113495bSYour Name case WMI_HOST_GPIO_PULL_NONE:
59*5113495bSYour Name return WMI_GPIO_PULL_NONE;
60*5113495bSYour Name case WMI_HOST_GPIO_PULL_UP:
61*5113495bSYour Name return WMI_GPIO_PULL_UP;
62*5113495bSYour Name case WMI_HOST_GPIO_PULL_DOWN:
63*5113495bSYour Name return WMI_GPIO_PULL_DOWN;
64*5113495bSYour Name default:
65*5113495bSYour Name return WMI_GPIO_PULL_NONE;
66*5113495bSYour Name }
67*5113495bSYour Name }
68*5113495bSYour Name
69*5113495bSYour Name /**
70*5113495bSYour Name * convert_gpio_interrupt_mode() - Function to convert unified interrupt mode
71*5113495bSYour Name * @intr_mode: pointer to enum gpio_interrupt_mode
72*5113495bSYour Name *
73*5113495bSYour Name * Convert the wmi unified interrupt mode to FW TLV WMI gpio interrupt mode
74*5113495bSYour Name *
75*5113495bSYour Name * Return: FW TLV WMI gpio interrupt mode
76*5113495bSYour Name */
77*5113495bSYour Name static uint32_t
convert_gpio_interrupt_mode(enum gpio_interrupt_mode intr_mode)78*5113495bSYour Name convert_gpio_interrupt_mode(enum gpio_interrupt_mode intr_mode)
79*5113495bSYour Name {
80*5113495bSYour Name switch (intr_mode) {
81*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_DISABLE:
82*5113495bSYour Name return WMI_GPIO_INTTYPE_DISABLE;
83*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_RISING_EDGE:
84*5113495bSYour Name return WMI_GPIO_INTTYPE_RISING_EDGE;
85*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_FALLING_EDGE:
86*5113495bSYour Name return WMI_GPIO_INTTYPE_FALLING_EDGE;
87*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_BOTH_EDGE:
88*5113495bSYour Name return WMI_GPIO_INTTYPE_BOTH_EDGE;
89*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_LEVEL_LOW:
90*5113495bSYour Name return WMI_GPIO_INTTYPE_LEVEL_LOW;
91*5113495bSYour Name case WMI_HOST_GPIO_INTMODE_LEVEL_HIGH:
92*5113495bSYour Name return WMI_GPIO_INTTYPE_LEVEL_HIGH;
93*5113495bSYour Name default:
94*5113495bSYour Name return WMI_GPIO_INTTYPE_DISABLE;
95*5113495bSYour Name }
96*5113495bSYour Name }
97*5113495bSYour Name
98*5113495bSYour Name /**
99*5113495bSYour Name * convert_gpio_output_value() - Function to convert unified gpio output value
100*5113495bSYour Name * @value: pointer to enum gpio_value
101*5113495bSYour Name *
102*5113495bSYour Name * Convert the wmi unified gpio output value to FW TLV WMI gpio output value
103*5113495bSYour Name *
104*5113495bSYour Name * Return:
105*5113495bSYour Name * 0 - Output low level
106*5113495bSYour Name * 1 - Output high level
107*5113495bSYour Name */
108*5113495bSYour Name static uint32_t
convert_gpio_output_value(enum gpio_value value)109*5113495bSYour Name convert_gpio_output_value(enum gpio_value value)
110*5113495bSYour Name {
111*5113495bSYour Name switch (value) {
112*5113495bSYour Name case WMI_HOST_GPIO_LEVEL_LOW:
113*5113495bSYour Name return 0;
114*5113495bSYour Name case WMI_HOST_GPIO_LEVEL_HIGH:
115*5113495bSYour Name return 1;
116*5113495bSYour Name default:
117*5113495bSYour Name return 0;
118*5113495bSYour Name }
119*5113495bSYour Name }
120*5113495bSYour Name
121*5113495bSYour Name /**
122*5113495bSYour Name * send_gpio_config_cmd_tlv() - send gpio config to fw
123*5113495bSYour Name * @wmi_handle: wmi handle
124*5113495bSYour Name * @param: pointer to hold gpio config params
125*5113495bSYour Name *
126*5113495bSYour Name * Send gpio configuration to firmware.
127*5113495bSYour Name *
128*5113495bSYour Name * Return: QDF_STATUS_SUCCESS on success and QDF_STATUS_E_FAILURE for failure
129*5113495bSYour Name */
130*5113495bSYour Name static QDF_STATUS
send_gpio_config_cmd_tlv(wmi_unified_t wmi_handle,struct gpio_config_params * param)131*5113495bSYour Name send_gpio_config_cmd_tlv(wmi_unified_t wmi_handle,
132*5113495bSYour Name struct gpio_config_params *param)
133*5113495bSYour Name {
134*5113495bSYour Name wmi_gpio_config_cmd_fixed_param *cmd;
135*5113495bSYour Name wmi_buf_t buf;
136*5113495bSYour Name int32_t len;
137*5113495bSYour Name QDF_STATUS ret;
138*5113495bSYour Name
139*5113495bSYour Name len = sizeof(*cmd);
140*5113495bSYour Name
141*5113495bSYour Name /* Sanity Checks */
142*5113495bSYour Name if (param->pin_pull_type >= WMI_HOST_GPIO_PULL_MAX ||
143*5113495bSYour Name param->pin_intr_mode >= WMI_HOST_GPIO_INTMODE_MAX ||
144*5113495bSYour Name param->pin_dir >= WMI_HOST_GPIO_DIR_MAX) {
145*5113495bSYour Name return QDF_STATUS_E_FAILURE;
146*5113495bSYour Name }
147*5113495bSYour Name
148*5113495bSYour Name buf = wmi_buf_alloc(wmi_handle, len);
149*5113495bSYour Name if (!buf)
150*5113495bSYour Name return QDF_STATUS_E_FAILURE;
151*5113495bSYour Name
152*5113495bSYour Name cmd = (wmi_gpio_config_cmd_fixed_param *)wmi_buf_data(buf);
153*5113495bSYour Name WMITLV_SET_HDR(&cmd->tlv_header,
154*5113495bSYour Name WMITLV_TAG_STRUC_wmi_gpio_config_cmd_fixed_param,
155*5113495bSYour Name WMITLV_GET_STRUCT_TLVLEN(
156*5113495bSYour Name wmi_gpio_config_cmd_fixed_param));
157*5113495bSYour Name cmd->gpio_num = param->pin_num;
158*5113495bSYour Name cmd->input = convert_gpio_direction(param->pin_dir);
159*5113495bSYour Name cmd->pull_type = convert_gpio_pull_type(param->pin_pull_type);
160*5113495bSYour Name cmd->intr_mode = convert_gpio_interrupt_mode(param->pin_intr_mode);
161*5113495bSYour Name cmd->mux_config_val = param->mux_config_val;
162*5113495bSYour Name cmd->drive = param->drive;
163*5113495bSYour Name cmd->init_enable = param->init_enable;
164*5113495bSYour Name
165*5113495bSYour Name wmi_debug("GPIO num %d, input-dir %d, pull_type %d, intr_mode %d"
166*5113495bSYour Name " mux_config_val %d drive %d init_enable %d",
167*5113495bSYour Name cmd->gpio_num, cmd->input, cmd->pull_type, cmd->intr_mode,
168*5113495bSYour Name cmd->mux_config_val, cmd->drive, cmd->init_enable);
169*5113495bSYour Name
170*5113495bSYour Name wmi_mtrace(WMI_GPIO_CONFIG_CMDID, NO_SESSION, 0);
171*5113495bSYour Name ret = wmi_unified_cmd_send(wmi_handle, buf, sizeof(*cmd),
172*5113495bSYour Name WMI_GPIO_CONFIG_CMDID);
173*5113495bSYour Name
174*5113495bSYour Name if (QDF_IS_STATUS_ERROR(ret)) {
175*5113495bSYour Name wmi_err("Sending GPIO config cmd failed");
176*5113495bSYour Name wmi_buf_free(buf);
177*5113495bSYour Name }
178*5113495bSYour Name
179*5113495bSYour Name return ret;
180*5113495bSYour Name }
181*5113495bSYour Name
182*5113495bSYour Name /**
183*5113495bSYour Name * send_gpio_output_cmd_tlv() - send gpio output to fw
184*5113495bSYour Name * @wmi_handle: wmi handle
185*5113495bSYour Name * @param: pointer to hold gpio output param
186*5113495bSYour Name *
187*5113495bSYour Name * Send gpio output value to firmware.
188*5113495bSYour Name *
189*5113495bSYour Name * Return: QDF_STATUS_SUCCESS on success and QDF_STATUS_E_FAILURE for failure
190*5113495bSYour Name */
191*5113495bSYour Name static QDF_STATUS
send_gpio_output_cmd_tlv(wmi_unified_t wmi_handle,struct gpio_output_params * param)192*5113495bSYour Name send_gpio_output_cmd_tlv(wmi_unified_t wmi_handle,
193*5113495bSYour Name struct gpio_output_params *param)
194*5113495bSYour Name {
195*5113495bSYour Name wmi_gpio_output_cmd_fixed_param *cmd;
196*5113495bSYour Name wmi_buf_t buf;
197*5113495bSYour Name int32_t len;
198*5113495bSYour Name QDF_STATUS ret;
199*5113495bSYour Name
200*5113495bSYour Name len = sizeof(*cmd);
201*5113495bSYour Name
202*5113495bSYour Name /* Sanity Checks */
203*5113495bSYour Name if (param->pin_set >= WMI_HOST_GPIO_LEVEL_MAX)
204*5113495bSYour Name return QDF_STATUS_E_FAILURE;
205*5113495bSYour Name
206*5113495bSYour Name buf = wmi_buf_alloc(wmi_handle, len);
207*5113495bSYour Name if (!buf)
208*5113495bSYour Name return QDF_STATUS_E_FAILURE;
209*5113495bSYour Name
210*5113495bSYour Name cmd = (wmi_gpio_output_cmd_fixed_param *)wmi_buf_data(buf);
211*5113495bSYour Name WMITLV_SET_HDR(&cmd->tlv_header,
212*5113495bSYour Name WMITLV_TAG_STRUC_wmi_gpio_output_cmd_fixed_param,
213*5113495bSYour Name WMITLV_GET_STRUCT_TLVLEN(
214*5113495bSYour Name wmi_gpio_output_cmd_fixed_param));
215*5113495bSYour Name cmd->gpio_num = param->pin_num;
216*5113495bSYour Name cmd->set = convert_gpio_output_value(param->pin_set);
217*5113495bSYour Name
218*5113495bSYour Name wmi_debug("GPIO num %d, set %d", cmd->gpio_num, cmd->set);
219*5113495bSYour Name wmi_mtrace(WMI_GPIO_OUTPUT_CMDID, NO_SESSION, 0);
220*5113495bSYour Name ret = wmi_unified_cmd_send(wmi_handle, buf, sizeof(*cmd),
221*5113495bSYour Name WMI_GPIO_OUTPUT_CMDID);
222*5113495bSYour Name
223*5113495bSYour Name if (QDF_IS_STATUS_ERROR(ret)) {
224*5113495bSYour Name wmi_err("Sending GPIO output cmd failed");
225*5113495bSYour Name wmi_buf_free(buf);
226*5113495bSYour Name }
227*5113495bSYour Name
228*5113495bSYour Name return ret;
229*5113495bSYour Name }
230*5113495bSYour Name
wmi_gpio_attach_tlv(wmi_unified_t wmi_handle)231*5113495bSYour Name void wmi_gpio_attach_tlv(wmi_unified_t wmi_handle)
232*5113495bSYour Name {
233*5113495bSYour Name struct wmi_ops *ops = wmi_handle->ops;
234*5113495bSYour Name
235*5113495bSYour Name ops->send_gpio_config_cmd = send_gpio_config_cmd_tlv;
236*5113495bSYour Name ops->send_gpio_output_cmd = send_gpio_output_cmd_tlv;
237*5113495bSYour Name }
238*5113495bSYour Name
239