summaryrefslogtreecommitdiff
path: root/drivers/staging/media/as102/as10x_cmd_cfg.c
blob: 7b22e190c70149411ec32847282199ceff3711ff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
/**

 \file   as10x_cmd_cfg.c

 \author: S. Martinelli

 ----------------------------------------------------------------------------\n
   (c) Copyright Abilis Systems SARL 2005-2009 All rigths reserved \n
   www.abilis.com                                                  \n
 ----------------------------------------------------------------------------\n

 \brief AS10x API, configuration services

	AS10x cmd management: build command buffer, send command through
	selected port and wait for the response when required.

*/

#if defined(LINUX) && defined(__KERNEL__) /* linux kernel implementation */
#include <linux/kernel.h>
#include "as102_drv.h"
#elif defined(WIN32)
   #if defined(__BUILDMACHINE__) && (__BUILDMACHINE__ == WinDDK)
      /* win32 ddk implementation */
      #include "wdm.h"
      #include "Device.h"
      #include "endian_mgmt.h" /* FIXME */
   #else /* win32 sdk implementation */
      #include <windows.h>
      #include "types.h"
      #include "util.h"
      #include "as10x_handle.h"
      #include "endian_mgmt.h"
   #endif
#else /* all other cases */
   #include <string.h>
   #include "types.h"
   #include "util.h"
   #include "as10x_handle.h"
   #include "endian_mgmt.h" /* FIXME */
#endif /* __KERNEL__ */

#include "as10x_types.h"
#include "as10x_cmd.h"

/***************************/
/* FUNCTION DEFINITION     */
/***************************/

/**
   \brief  send get context command to AS10x
   \param  phandle:   pointer to AS10x handle
   \param  tag:       context tag
   \param  pvalue:    pointer where to store context value read
   \return 0 when no error, < 0 in case of error.
   \callgraph
*/
int as10x_cmd_get_context(as10x_handle_t *phandle, uint16_t tag,
			  uint32_t *pvalue)
{
	int  error;
	struct as10x_cmd_t *pcmd, *prsp;

	ENTER();

	pcmd = phandle->cmd;
	prsp = phandle->rsp;

	/* prepare command */
	as10x_cmd_build(pcmd, (++phandle->cmd_xid),
			sizeof(pcmd->body.context.req));

	/* fill command */
	pcmd->body.context.req.proc_id = cpu_to_le16(CONTROL_PROC_CONTEXT);
	pcmd->body.context.req.tag = cpu_to_le16(tag);
	pcmd->body.context.req.type = cpu_to_le16(GET_CONTEXT_DATA);

	/* send command */
	if (phandle->ops->xfer_cmd) {
		error  = phandle->ops->xfer_cmd(phandle,
						(uint8_t *) pcmd,
						sizeof(pcmd->body.context.req)
						+ HEADER_SIZE,
						(uint8_t *) prsp,
						sizeof(prsp->body.context.rsp)
						+ HEADER_SIZE);
	} else {
		error = AS10X_CMD_ERROR;
	}

	if (error < 0)
		goto out;

	/* parse response: context command do not follow the common response */
	/* structure -> specific handling response parse required            */
	error = as10x_context_rsp_parse(prsp, CONTROL_PROC_CONTEXT_RSP);

	if (error == 0) {
		/* Response OK -> get response data */
		*pvalue = le32_to_cpu(prsp->body.context.rsp.reg_val.u.value32);
		/* value returned is always a 32-bit value */
	}

out:
	LEAVE();
	return error;
}

/**
   \brief  send set context command to AS10x
   \param  phandle:   pointer to AS10x handle
   \param  tag:       context tag
   \param  value:     value to set in context
   \return 0 when no error, < 0 in case of error.
   \callgraph
*/
int as10x_cmd_set_context(as10x_handle_t *phandle, uint16_t tag,
			  uint32_t value)
{
	int error;
	struct as10x_cmd_t *pcmd, *prsp;

	ENTER();

	pcmd = phandle->cmd;
	prsp = phandle->rsp;

	/* prepare command */
	as10x_cmd_build(pcmd, (++phandle->cmd_xid),
			sizeof(pcmd->body.context.req));

	/* fill command */
	pcmd->body.context.req.proc_id = cpu_to_le16(CONTROL_PROC_CONTEXT);
	/* pcmd->body.context.req.reg_val.mode initialization is not required */
	pcmd->body.context.req.reg_val.u.value32 = cpu_to_le32(value);
	pcmd->body.context.req.tag = cpu_to_le16(tag);
	pcmd->body.context.req.type = cpu_to_le16(SET_CONTEXT_DATA);

	/* send command */
	if (phandle->ops->xfer_cmd) {
		error  = phandle->ops->xfer_cmd(phandle,
						(uint8_t *) pcmd,
						sizeof(pcmd->body.context.req)
						+ HEADER_SIZE,
						(uint8_t *) prsp,
						sizeof(prsp->body.context.rsp)
						+ HEADER_SIZE);
	} else {
		error = AS10X_CMD_ERROR;
	}

	if (error < 0)
		goto out;

	/* parse response: context command do not follow the common response */
	/* structure -> specific handling response parse required            */
	error = as10x_context_rsp_parse(prsp, CONTROL_PROC_CONTEXT_RSP);

out:
	LEAVE();
	return error;
}

/**
   \brief  send eLNA change mode command to AS10x
   \param  phandle:   pointer to AS10x handle
   \param  tag:       context tag
   \param  mode:      mode selected:
		     - ON    : 0x0 => eLNA always ON
		     - OFF   : 0x1 => eLNA always OFF
		     - AUTO  : 0x2 => eLNA follow hysteresis parameters to be
				      ON or OFF
   \return 0 when no error, < 0 in case of error.
   \callgraph
*/
int as10x_cmd_eLNA_change_mode(as10x_handle_t *phandle, uint8_t mode)
{
	int error;
	struct as10x_cmd_t *pcmd, *prsp;

	ENTER();

	pcmd = phandle->cmd;
	prsp = phandle->rsp;

	/* prepare command */
	as10x_cmd_build(pcmd, (++phandle->cmd_xid),
			sizeof(pcmd->body.cfg_change_mode.req));

	/* fill command */
	pcmd->body.cfg_change_mode.req.proc_id =
		cpu_to_le16(CONTROL_PROC_ELNA_CHANGE_MODE);
	pcmd->body.cfg_change_mode.req.mode = mode;

	/* send command */
	if (phandle->ops->xfer_cmd) {
		error  = phandle->ops->xfer_cmd(phandle, (uint8_t *) pcmd,
				sizeof(pcmd->body.cfg_change_mode.req)
				+ HEADER_SIZE, (uint8_t *) prsp,
				sizeof(prsp->body.cfg_change_mode.rsp)
				+ HEADER_SIZE);
	} else {
		error = AS10X_CMD_ERROR;
	}

	if (error < 0)
		goto out;

	/* parse response */
	error = as10x_rsp_parse(prsp, CONTROL_PROC_ELNA_CHANGE_MODE_RSP);

out:
	LEAVE();
	return error;
}

/**
   \brief  Parse context command response. Since this command does not follow
	   the common response, a specific parse function is required.
   \param  prsp:       pointer to AS10x command response buffer
   \param  proc_id:    id of the command
   \return 0 when no error, < 0 in case of error.
	   ABILIS_RC_NOK
   \callgraph
*/
int as10x_context_rsp_parse(struct as10x_cmd_t *prsp, uint16_t proc_id)
{
	int err;

	err = prsp->body.context.rsp.error;

	if ((err == 0) &&
	    (le16_to_cpu(prsp->body.context.rsp.proc_id) == proc_id)) {
		return 0;
	}
	return AS10X_CMD_ERROR;
}