1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Abilis Systems Single DVB-T Receiver
4 * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
5 */
6
7#include <linux/kernel.h>
8#include "as102_drv.h"
9#include "as10x_cmd.h"
10
11/**
12 * as10x_cmd_add_PID_filter - send add filter command to AS10x
13 * @adap: pointer to AS10x bus adapter
14 * @filter: TSFilter filter for DVB-T
15 *
16 * Return 0 on success or negative value in case of error.
17 */
18int as10x_cmd_add_PID_filter(struct as10x_bus_adapter_t *adap,
19 struct as10x_ts_filter *filter)
20{
21 int error;
22 struct as10x_cmd_t *pcmd, *prsp;
23
24 pcmd = adap->cmd;
25 prsp = adap->rsp;
26
27 /* prepare command */
28 as10x_cmd_build(pcmd, proc_id: (++adap->cmd_xid),
29 cmd_len: sizeof(pcmd->body.add_pid_filter.req));
30
31 /* fill command */
32 pcmd->body.add_pid_filter.req.proc_id =
33 cpu_to_le16(CONTROL_PROC_SETFILTER);
34 pcmd->body.add_pid_filter.req.pid = cpu_to_le16(filter->pid);
35 pcmd->body.add_pid_filter.req.stream_type = filter->type;
36
37 if (filter->idx < 16)
38 pcmd->body.add_pid_filter.req.idx = filter->idx;
39 else
40 pcmd->body.add_pid_filter.req.idx = 0xFF;
41
42 /* send command */
43 if (adap->ops->xfer_cmd) {
44 error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
45 sizeof(pcmd->body.add_pid_filter.req)
46 + HEADER_SIZE, (uint8_t *) prsp,
47 sizeof(prsp->body.add_pid_filter.rsp)
48 + HEADER_SIZE);
49 } else {
50 error = AS10X_CMD_ERROR;
51 }
52
53 if (error < 0)
54 goto out;
55
56 /* parse response */
57 error = as10x_rsp_parse(r: prsp, proc_id: CONTROL_PROC_SETFILTER_RSP);
58
59 if (error == 0) {
60 /* Response OK -> get response data */
61 filter->idx = prsp->body.add_pid_filter.rsp.filter_id;
62 }
63
64out:
65 return error;
66}
67
68/**
69 * as10x_cmd_del_PID_filter - Send delete filter command to AS10x
70 * @adap: pointer to AS10x bus adapte
71 * @pid_value: PID to delete
72 *
73 * Return 0 on success or negative value in case of error.
74 */
75int as10x_cmd_del_PID_filter(struct as10x_bus_adapter_t *adap,
76 uint16_t pid_value)
77{
78 int error;
79 struct as10x_cmd_t *pcmd, *prsp;
80
81 pcmd = adap->cmd;
82 prsp = adap->rsp;
83
84 /* prepare command */
85 as10x_cmd_build(pcmd, proc_id: (++adap->cmd_xid),
86 cmd_len: sizeof(pcmd->body.del_pid_filter.req));
87
88 /* fill command */
89 pcmd->body.del_pid_filter.req.proc_id =
90 cpu_to_le16(CONTROL_PROC_REMOVEFILTER);
91 pcmd->body.del_pid_filter.req.pid = cpu_to_le16(pid_value);
92
93 /* send command */
94 if (adap->ops->xfer_cmd) {
95 error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
96 sizeof(pcmd->body.del_pid_filter.req)
97 + HEADER_SIZE, (uint8_t *) prsp,
98 sizeof(prsp->body.del_pid_filter.rsp)
99 + HEADER_SIZE);
100 } else {
101 error = AS10X_CMD_ERROR;
102 }
103
104 if (error < 0)
105 goto out;
106
107 /* parse response */
108 error = as10x_rsp_parse(r: prsp, proc_id: CONTROL_PROC_REMOVEFILTER_RSP);
109
110out:
111 return error;
112}
113
114/**
115 * as10x_cmd_start_streaming - Send start streaming command to AS10x
116 * @adap: pointer to AS10x bus adapter
117 *
118 * Return 0 on success or negative value in case of error.
119 */
120int as10x_cmd_start_streaming(struct as10x_bus_adapter_t *adap)
121{
122 int error;
123 struct as10x_cmd_t *pcmd, *prsp;
124
125 pcmd = adap->cmd;
126 prsp = adap->rsp;
127
128 /* prepare command */
129 as10x_cmd_build(pcmd, proc_id: (++adap->cmd_xid),
130 cmd_len: sizeof(pcmd->body.start_streaming.req));
131
132 /* fill command */
133 pcmd->body.start_streaming.req.proc_id =
134 cpu_to_le16(CONTROL_PROC_START_STREAMING);
135
136 /* send command */
137 if (adap->ops->xfer_cmd) {
138 error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
139 sizeof(pcmd->body.start_streaming.req)
140 + HEADER_SIZE, (uint8_t *) prsp,
141 sizeof(prsp->body.start_streaming.rsp)
142 + HEADER_SIZE);
143 } else {
144 error = AS10X_CMD_ERROR;
145 }
146
147 if (error < 0)
148 goto out;
149
150 /* parse response */
151 error = as10x_rsp_parse(r: prsp, proc_id: CONTROL_PROC_START_STREAMING_RSP);
152
153out:
154 return error;
155}
156
157/**
158 * as10x_cmd_stop_streaming - Send stop streaming command to AS10x
159 * @adap: pointer to AS10x bus adapter
160 *
161 * Return 0 on success or negative value in case of error.
162 */
163int as10x_cmd_stop_streaming(struct as10x_bus_adapter_t *adap)
164{
165 int8_t error;
166 struct as10x_cmd_t *pcmd, *prsp;
167
168 pcmd = adap->cmd;
169 prsp = adap->rsp;
170
171 /* prepare command */
172 as10x_cmd_build(pcmd, proc_id: (++adap->cmd_xid),
173 cmd_len: sizeof(pcmd->body.stop_streaming.req));
174
175 /* fill command */
176 pcmd->body.stop_streaming.req.proc_id =
177 cpu_to_le16(CONTROL_PROC_STOP_STREAMING);
178
179 /* send command */
180 if (adap->ops->xfer_cmd) {
181 error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
182 sizeof(pcmd->body.stop_streaming.req)
183 + HEADER_SIZE, (uint8_t *) prsp,
184 sizeof(prsp->body.stop_streaming.rsp)
185 + HEADER_SIZE);
186 } else {
187 error = AS10X_CMD_ERROR;
188 }
189
190 if (error < 0)
191 goto out;
192
193 /* parse response */
194 error = as10x_rsp_parse(r: prsp, proc_id: CONTROL_PROC_STOP_STREAMING_RSP);
195
196out:
197 return error;
198}
199

source code of linux/drivers/media/usb/as102/as10x_cmd_stream.c