diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 16:23:43 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 16:42:14 -0300 |
commit | cb7a01ac324bf2ee2c666f37ac867e4135f9785a (patch) | |
tree | 7246b915a9334d4bc823c93ba9acab65ef882678 /drivers/media/video/cx25840/cx25840-audio.c | |
parent | f0af8fa4dad0839f844fd0633e1936493f6d685a (diff) |
[media] move i2c files into drivers/media/i2c
Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx25840/cx25840-audio.c')
-rw-r--r-- | drivers/media/video/cx25840/cx25840-audio.c | 571 |
1 files changed, 0 insertions, 571 deletions
diff --git a/drivers/media/video/cx25840/cx25840-audio.c b/drivers/media/video/cx25840/cx25840-audio.c deleted file mode 100644 index 34b96c7cfd6..00000000000 --- a/drivers/media/video/cx25840/cx25840-audio.c +++ /dev/null @@ -1,571 +0,0 @@ -/* cx25840 audio functions - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - - -#include <linux/videodev2.h> -#include <linux/i2c.h> -#include <media/v4l2-common.h> -#include <media/cx25840.h> - -#include "cx25840-core.h" - -/* - * Note: The PLL and SRC parameters are based on a reference frequency that - * would ideally be: - * - * NTSC Color subcarrier freq * 8 = 4.5 MHz/286 * 455/2 * 8 = 28.63636363... MHz - * - * However, it's not the exact reference frequency that matters, only that the - * firmware and modules that comprise the driver for a particular board all - * use the same value (close to the ideal value). - * - * Comments below will note which reference frequency is assumed for various - * parameters. They will usually be one of - * - * ref_freq = 28.636360 MHz - * or - * ref_freq = 28.636363 MHz - */ - -static int cx25840_set_audclk_freq(struct i2c_client *client, u32 freq) -{ - struct cx25840_state *state = to_state(i2c_get_clientdata(client)); - - if (state->aud_input != CX25840_AUDIO_SERIAL) { - switch (freq) { - case 32000: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x06, AUX PLL Post Divider = 0x10 - */ - cx25840_write4(client, 0x108, 0x1006040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x1bb39ee - * 28636363 * 0x6.dd9cf70/0x10 = 32000 * 384 - * 196.6 MHz pre-postdivide - * FIXME < 200 MHz is out of specified valid range - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x01bb39ee); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x50); - - if (is_cx2583x(state)) - break; - - /* src3/4/6_ctl */ - /* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */ - cx25840_write4(client, 0x900, 0x0801f77f); - cx25840_write4(client, 0x904, 0x0801f77f); - cx25840_write4(client, 0x90c, 0x0801f77f); - break; - - case 44100: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x10 - */ - cx25840_write4(client, 0x108, 0x1009040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x0ec6bd6 - * 28636363 * 0x9.7635eb0/0x10 = 44100 * 384 - * 271 MHz pre-postdivide - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x00ec6bd6); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x50); - - if (is_cx2583x(state)) - break; - - /* src3/4/6_ctl */ - /* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */ - cx25840_write4(client, 0x900, 0x08016d59); - cx25840_write4(client, 0x904, 0x08016d59); - cx25840_write4(client, 0x90c, 0x08016d59); - break; - - case 48000: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x10 - */ - cx25840_write4(client, 0x108, 0x100a040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x098d6e5 - * 28636363 * 0xa.4c6b728/0x10 = 48000 * 384 - * 295 MHz pre-postdivide - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x0098d6e5); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x50); - - if (is_cx2583x(state)) - break; - - /* src3/4/6_ctl */ - /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ - cx25840_write4(client, 0x900, 0x08014faa); - cx25840_write4(client, 0x904, 0x08014faa); - cx25840_write4(client, 0x90c, 0x08014faa); - break; - } - } else { - switch (freq) { - case 32000: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x08, AUX PLL Post Divider = 0x1e - */ - cx25840_write4(client, 0x108, 0x1e08040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x12a0869 - * 28636363 * 0x8.9504348/0x1e = 32000 * 256 - * 246 MHz pre-postdivide - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x012a0869); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x14 = 256/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x54); - - if (is_cx2583x(state)) - break; - - /* src1_ctl */ - /* 0x1.0000 = 32000/32000 */ - cx25840_write4(client, 0x8f8, 0x08010000); - - /* src3/4/6_ctl */ - /* 0x2.0000 = 2 * (32000/32000) */ - cx25840_write4(client, 0x900, 0x08020000); - cx25840_write4(client, 0x904, 0x08020000); - cx25840_write4(client, 0x90c, 0x08020000); - break; - - case 44100: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x18 - */ - cx25840_write4(client, 0x108, 0x1809040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x0ec6bd6 - * 28636363 * 0x9.7635eb0/0x18 = 44100 * 256 - * 271 MHz pre-postdivide - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x00ec6bd6); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x50); - - if (is_cx2583x(state)) - break; - - /* src1_ctl */ - /* 0x1.60cd = 44100/32000 */ - cx25840_write4(client, 0x8f8, 0x080160cd); - - /* src3/4/6_ctl */ - /* 0x1.7385 = 2 * (32000/44100) */ - cx25840_write4(client, 0x900, 0x08017385); - cx25840_write4(client, 0x904, 0x08017385); - cx25840_write4(client, 0x90c, 0x08017385); - break; - - case 48000: - /* - * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 - * AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x18 - */ - cx25840_write4(client, 0x108, 0x180a040f); - - /* - * VID_PLL Fraction (register 0x10c) = 0x2be2fe - * 28636360 * 0xf.15f17f0/4 = 108 MHz - * 432 MHz pre-postdivide - */ - - /* - * AUX_PLL Fraction = 0x098d6e5 - * 28636363 * 0xa.4c6b728/0x18 = 48000 * 256 - * 295 MHz pre-postdivide - * FIXME 28636363 ref_freq doesn't match VID PLL ref - */ - cx25840_write4(client, 0x110, 0x0098d6e5); - - /* - * SA_MCLK_SEL = 1 - * SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider - */ - cx25840_write(client, 0x127, 0x50); - - if (is_cx2583x(state)) - break; - - /* src1_ctl */ - /* 0x1.8000 = 48000/32000 */ - cx25840_write4(client, 0x8f8, 0x08018000); - - /* src3/4/6_ctl */ - /* 0x1.5555 = 2 * (32000/48000) */ - cx25840_write4(client, 0x900, 0x08015555); - cx25840_write4(client, 0x904, 0x08015555); - cx25840_write4(client, 0x90c, 0x08015555); - break; - } - } - - state->audclk_freq = freq; - - return 0; -} - -static inline int cx25836_set_audclk_freq(struct i2c_client *client, u32 freq) -{ - return cx25840_set_audclk_freq(client, freq); -} - -static int cx23885_set_audclk_freq(struct i2c_client *client, u32 freq) -{ - struct cx25840_state *state = to_state(i2c_get_clientdata(client)); - - if (state->aud_input != CX25840_AUDIO_SERIAL) { - switch (freq) { - case 32000: - case 44100: - case 48000: - /* We don't have register values - * so avoid destroying registers. */ - /* FIXME return -EINVAL; */ - break; - } - } else { - switch (freq) { - case 32000: - case 44100: - /* We don't have register values - * so avoid destroying registers. */ - /* FIXME return -EINVAL; */ - break; - - case 48000: - /* src1_ctl */ - /* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */ - cx25840_write4(client, 0x8f8, 0x0801867c); - - /* src3/4/6_ctl */ - /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ - cx25840_write4(client, 0x900, 0x08014faa); - cx25840_write4(client, 0x904, 0x08014faa); - cx25840_write4(client, 0x90c, 0x08014faa); - break; - } - } - - state->audclk_freq = freq; - - return 0; -} - -static int cx231xx_set_audclk_freq(struct i2c_client *client, u32 freq) -{ - struct cx25840_state *state = to_state(i2c_get_clientdata(client)); - - if (state->aud_input != CX25840_AUDIO_SERIAL) { - switch (freq) { - case 32000: - /* src3/4/6_ctl */ - /* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */ - cx25840_write4(client, 0x900, 0x0801f77f); - cx25840_write4(client, 0x904, 0x0801f77f); - cx25840_write4(client, 0x90c, 0x0801f77f); - break; - - case 44100: - /* src3/4/6_ctl */ - /* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */ - cx25840_write4(client, 0x900, 0x08016d59); - cx25840_write4(client, 0x904, 0x08016d59); - cx25840_write4(client, 0x90c, 0x08016d59); - break; - - case 48000: - /* src3/4/6_ctl */ - /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ - cx25840_write4(client, 0x900, 0x08014faa); - cx25840_write4(client, 0x904, 0x08014faa); - cx25840_write4(client, 0x90c, 0x08014faa); - break; - } - } else { - switch (freq) { - /* FIXME These cases make different assumptions about audclk */ - case 32000: - /* src1_ctl */ - /* 0x1.0000 = 32000/32000 */ - cx25840_write4(client, 0x8f8, 0x08010000); - - /* src3/4/6_ctl */ - /* 0x2.0000 = 2 * (32000/32000) */ - cx25840_write4(client, 0x900, 0x08020000); - cx25840_write4(client, 0x904, 0x08020000); - cx25840_write4(client, 0x90c, 0x08020000); - break; - - case 44100: - /* src1_ctl */ - /* 0x1.60cd = 44100/32000 */ - cx25840_write4(client, 0x8f8, 0x080160cd); - - /* src3/4/6_ctl */ - /* 0x1.7385 = 2 * (32000/44100) */ - cx25840_write4(client, 0x900, 0x08017385); - cx25840_write4(client, 0x904, 0x08017385); - cx25840_write4(client, 0x90c, 0x08017385); - break; - - case 48000: - /* src1_ctl */ - /* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */ - cx25840_write4(client, 0x8f8, 0x0801867c); - - /* src3/4/6_ctl */ - /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ - cx25840_write4(client, 0x900, 0x08014faa); - cx25840_write4(client, 0x904, 0x08014faa); - cx25840_write4(client, 0x90c, 0x08014faa); - break; - } - } - - state->audclk_freq = freq; - - return 0; -} - -static int set_audclk_freq(struct i2c_client *client, u32 freq) -{ - struct cx25840_state *state = to_state(i2c_get_clientdata(client)); - - if (freq != 32000 && freq != 44100 && freq != 48000) - return -EINVAL; - - if (is_cx231xx(state)) - return cx231xx_set_audclk_freq(client, freq); - - if (is_cx2388x(state)) - return cx23885_set_audclk_freq(client, freq); - - if (is_cx2583x(state)) - return cx25836_set_audclk_freq(client, freq); - - return cx25840_set_audclk_freq(client, freq); -} - -void cx25840_audio_set_path(struct i2c_client *client) -{ - struct cx25840_state *state = to_state(i2c_get_clientdata(client)); - - if (!is_cx2583x(state)) { - /* assert soft reset */ - cx25840_and_or(client, 0x810, ~0x1, 0x01); - - /* stop microcontroller */ - cx25840_and_or(client, 0x803, ~0x10, 0); - - /* Mute everything to prevent the PFFT! */ - cx25840_write(client, 0x8d3, 0x1f); - - if (state->aud_input == CX25840_AUDIO_SERIAL) { - /* Set Path1 to Serial Audio Input */ - cx25840_write4(client, 0x8d0, 0x01011012); - - /* The microcontroller should not be started for the - * non-tuner inputs: autodetection is specific for - * TV audio. */ - } else { - /* Set Path1 to Analog Demod Main Channel */ - cx25840_write4(client, 0x8d0, 0x1f063870); - } - } - - set_audclk_freq(client, state->audclk_freq); - - if (!is_cx2583x(state)) { - if (state->aud_input != CX25840_AUDIO_SERIAL) { - /* When the microcontroller detects the - * audio format, it will unmute the lines */ - cx25840_and_or(client, 0x803, ~0x10, 0x10); - } - - /* deassert soft reset */ - cx25840_and_or(client, 0x810, ~0x1, 0x00); - - /* Ensure the controller is running when we exit */ - if (is_cx2388x(state) || is_cx231xx(state)) - cx25840_and_or(client, 0x803, ~0x10, 0x10); - } -} - -static void set_volume(struct i2c_client *client, int volume) -{ - int vol; - - /* Convert the volume to msp3400 values (0-127) */ - vol = volume >> 9; - - /* now scale it up to cx25840 values - * -114dB to -96dB maps to 0 - * this should be 19, but in my testing that was 4dB too loud */ - if (vol <= 23) { - vol = 0; - } else { - vol -= 23; - } - - /* PATH1_VOLUME */ - cx25840_write(client, 0x8d4, 228 - (vol * 2)); -} - -static void set_balance(struct i2c_client *client, int balance) -{ - int bal = balance >> 8; - if (bal > 0x80) { - /* PATH1_BAL_LEFT */ - cx25840_and_or(client, 0x8d5, 0x7f, 0x80); - /* PATH1_BAL_LEVEL */ - cx25840_and_or(client, 0x8d5, ~0x7f, bal & 0x7f); - } else { - /* PATH1_BAL_LEFT */ - cx25840_and_or(client, 0x8d5, 0x7f, 0x00); - /* PATH1_BAL_LEVEL */ - cx25840_and_or(client, 0x8d5, ~0x7f, 0x80 - bal); - } -} - -int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct cx25840_state *state = to_state(sd); - int retval; - - if (!is_cx2583x(state)) - cx25840_and_or(client, 0x810, ~0x1, 1); - if (state->aud_input != CX25840_AUDIO_SERIAL) { - cx25840_and_or(client, 0x803, ~0x10, 0); - cx25840_write(client, 0x8d3, 0x1f); - } - retval = set_audclk_freq(client, freq); - if (state->aud_input != CX25840_AUDIO_SERIAL) - cx25840_and_or(client, 0x803, ~0x10, 0x10); - if (!is_cx2583x(state)) - cx25840_and_or(client, 0x810, ~0x1, 0); - return retval; -} - -static int cx25840_audio_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - struct cx25840_state *state = to_state(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_VOLUME: - if (state->mute->val) - set_volume(client, 0); - else - set_volume(client, state->volume->val); - break; - case V4L2_CID_AUDIO_BASS: - /* PATH1_EQ_BASS_VOL */ - cx25840_and_or(client, 0x8d9, ~0x3f, - 48 - (ctrl->val * 48 / 0xffff)); - break; - case V4L2_CID_AUDIO_TREBLE: - /* PATH1_EQ_TREBLE_VOL */ - cx25840_and_or(client, 0x8db, ~0x3f, - 48 - (ctrl->val * 48 / 0xffff)); - break; - case V4L2_CID_AUDIO_BALANCE: - set_balance(client, ctrl->val); - break; - default: - return -EINVAL; - } - return 0; -} - -const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops = { - .s_ctrl = cx25840_audio_s_ctrl, -}; |