4  * Copyright (C) 2005 T. Adachi <tadachi@tadachi-net.com>
7  * - Cleanup
20  * along with this program; if not, write to the Free Software
31 #include <media/v4l2-device.h>
32 #include <media/v4l2-chip-ident.h>
33 #include <media/v4l2-ctrls.h>
43 MODULE_PARM_DESC(debug, "Debug level (0-1)");
46 /* ------------------------------------------------------------------------ */
73 	return &container_of(ctrl->handler, struct wm8739_state, hdl)->sd;  in to_sd()
76 /* ------------------------------------------------------------------------ */
85 		return -1;  in wm8739_write()
94 	v4l2_err(sd, "I2C: cannot write %03x to register R%d\n", val, reg);  in wm8739_write()
95 	return -1;  in wm8739_write()
103 	u8 vol_l;	/* +12dB to -34.5dB 1.5dB step (5bit) def:0dB */  in wm8739_s_ctrl()
104 	u8 vol_r;	/* +12dB to -34.5dB 1.5dB step (5bit) def:0dB */  in wm8739_s_ctrl()
107 	switch (ctrl->id) {  in wm8739_s_ctrl()
112 		return -EINVAL;  in wm8739_s_ctrl()
115 	/* normalize ( 65535 to 0 -> 31 to 0 (12dB to -34.5dB) ) */  in wm8739_s_ctrl()
116 	work_l = (min(65536 - state->balance->val, 32768) * state->volume->val) / 32768;  in wm8739_s_ctrl()
117 	work_r = (min(state->balance->val, 32768) * state->volume->val) / 32768;  in wm8739_s_ctrl()
123 	mute = state->mute->val ? 0x80 : 0;  in wm8739_s_ctrl()
125 	/* Volume setting: bits 0-4, 0x1f = 12 dB, 0x00 = -34.5 dB  in wm8739_s_ctrl()
133 /* ------------------------------------------------------------------------ */
139 	state->clock_freq = audiofreq;  in wm8739_s_clock_freq()
140 	/* de-activate */  in wm8739_s_clock_freq()
158 	/* activate */  in wm8739_s_clock_freq()
174 	v4l2_info(sd, "Frequency: %u Hz\n", state->clock_freq);  in wm8739_log_status()
175 	v4l2_ctrl_handler_log_status(&state->hdl, sd->name);  in wm8739_log_status()
179 /* ----------------------------------------------------------------------- */
206 /* ------------------------------------------------------------------------ */
217 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))  in wm8739_probe()
218 		return -EIO;  in wm8739_probe()
221 			client->addr << 1, client->adapter->name);  in wm8739_probe()
225 		return -ENOMEM;  in wm8739_probe()
226 	sd = &state->sd;  in wm8739_probe()
228 	v4l2_ctrl_handler_init(&state->hdl, 2);  in wm8739_probe()
229 	state->volume = v4l2_ctrl_new_std(&state->hdl, &wm8739_ctrl_ops,  in wm8739_probe()
231 	state->mute = v4l2_ctrl_new_std(&state->hdl, &wm8739_ctrl_ops,  in wm8739_probe()
233 	state->balance = v4l2_ctrl_new_std(&state->hdl, &wm8739_ctrl_ops,  in wm8739_probe()
235 	sd->ctrl_handler = &state->hdl;  in wm8739_probe()
236 	if (state->hdl.error) {  in wm8739_probe()
237 		int err = state->hdl.error;  in wm8739_probe()
239 		v4l2_ctrl_handler_free(&state->hdl);  in wm8739_probe()
243 	v4l2_ctrl_cluster(3, &state->volume);  in wm8739_probe()
245 	state->clock_freq = 48000;  in wm8739_probe()
260 	/* activate */  in wm8739_probe()
263 	v4l2_ctrl_handler_setup(&state->hdl);  in wm8739_probe()
273 	v4l2_ctrl_handler_free(&state->hdl);  in wm8739_remove()