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path: root/drivers/media/pci/bt8xx/bttv-audio-hook.c
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Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-audio-hook.c')
-rw-r--r--drivers/media/pci/bt8xx/bttv-audio-hook.c382
1 files changed, 382 insertions, 0 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-audio-hook.c b/drivers/media/pci/bt8xx/bttv-audio-hook.c
new file mode 100644
index 000000000000..2364d16586b3
--- /dev/null
+++ b/drivers/media/pci/bt8xx/bttv-audio-hook.c
@@ -0,0 +1,382 @@
+/*
+ * Handlers for board audio hooks, splitted from bttv-cards
+ *
+ * Copyright (c) 2006 Mauro Carvalho Chehab (mchehab@infradead.org)
+ * This code is placed under the terms of the GNU General Public License
+ */
+
+#include "bttv-audio-hook.h"
+
+#include <linux/delay.h>
+
+/* ----------------------------------------------------------------------- */
+/* winview */
+
+void winview_volume(struct bttv *btv, __u16 volume)
+{
+ /* PT2254A programming Jon Tombs, jon@gte.esi.us.es */
+ int bits_out, loops, vol, data;
+
+ /* 32 levels logarithmic */
+ vol = 32 - ((volume>>11));
+ /* units */
+ bits_out = (PT2254_DBS_IN_2>>(vol%5));
+ /* tens */
+ bits_out |= (PT2254_DBS_IN_10>>(vol/5));
+ bits_out |= PT2254_L_CHANNEL | PT2254_R_CHANNEL;
+ data = gpio_read();
+ data &= ~(WINVIEW_PT2254_CLK| WINVIEW_PT2254_DATA|
+ WINVIEW_PT2254_STROBE);
+ for (loops = 17; loops >= 0 ; loops--) {
+ if (bits_out & (1<<loops))
+ data |= WINVIEW_PT2254_DATA;
+ else
+ data &= ~WINVIEW_PT2254_DATA;
+ gpio_write(data);
+ udelay(5);
+ data |= WINVIEW_PT2254_CLK;
+ gpio_write(data);
+ udelay(5);
+ data &= ~WINVIEW_PT2254_CLK;
+ gpio_write(data);
+ }
+ data |= WINVIEW_PT2254_STROBE;
+ data &= ~WINVIEW_PT2254_DATA;
+ gpio_write(data);
+ udelay(10);
+ data &= ~WINVIEW_PT2254_STROBE;
+ gpio_write(data);
+}
+
+/* ----------------------------------------------------------------------- */
+/* mono/stereo control for various cards (which don't use i2c chips but */
+/* connect something to the GPIO pins */
+
+void gvbctv3pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int con = 0;
+
+ if (set) {
+ gpio_inout(0x300, 0x300);
+ if (t->audmode & V4L2_TUNER_MODE_LANG1)
+ con = 0x000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG2)
+ con = 0x300;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO)
+ con = 0x200;
+/* if (t->audmode & V4L2_TUNER_MODE_MONO)
+ * con = 0x100; */
+ gpio_bits(0x300, con);
+ } else {
+ t->audmode = V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+void gvbctv5pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int val, con;
+
+ if (btv->radio_user)
+ return;
+
+ val = gpio_read();
+ if (set) {
+ con = 0x000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG2) {
+ if (t->audmode & V4L2_TUNER_MODE_LANG1) {
+ /* LANG1 + LANG2 */
+ con = 0x100;
+ }
+ else {
+ /* LANG2 */
+ con = 0x300;
+ }
+ }
+ if (con != (val & 0x300)) {
+ gpio_bits(0x300, con);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"gvbctv5pci");
+ }
+ } else {
+ switch (val & 0x70) {
+ case 0x10:
+ t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+ break;
+ case 0x30:
+ t->rxsubchans = V4L2_TUNER_SUB_LANG2;
+ break;
+ case 0x50:
+ t->rxsubchans = V4L2_TUNER_SUB_LANG1;
+ break;
+ case 0x60:
+ t->rxsubchans = V4L2_TUNER_SUB_STEREO;
+ break;
+ case 0x70:
+ t->rxsubchans = V4L2_TUNER_SUB_MONO;
+ break;
+ default:
+ t->rxsubchans = V4L2_TUNER_SUB_MONO |
+ V4L2_TUNER_SUB_STEREO |
+ V4L2_TUNER_SUB_LANG1 |
+ V4L2_TUNER_SUB_LANG2;
+ }
+ t->audmode = V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+/*
+ * Mario Medina Nussbaum <medisoft@alohabbs.org.mx>
+ * I discover that on BT848_GPIO_DATA address a byte 0xcce enable stereo,
+ * 0xdde enables mono and 0xccd enables sap
+ *
+ * Petr Vandrovec <VANDROVE@vc.cvut.cz>
+ * P.S.: At least mask in line above is wrong - GPIO pins 3,2 select
+ * input/output sound connection, so both must be set for output mode.
+ *
+ * Looks like it's needed only for the "tvphone", the "tvphone 98"
+ * handles this with a tda9840
+ *
+ */
+
+void avermedia_tvphone_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ int val = 0;
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
+ val = 0x02;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO)
+ val = 0x01;
+ if (val) {
+ gpio_bits(0x03,val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"avermedia");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1;
+ return;
+ }
+}
+
+
+void avermedia_tv_stereo_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ int val = 0;
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
+ val = 0x01;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO) /* STEREO */
+ val = 0x02;
+ btaor(val, ~0x03, BT848_GPIO_DATA);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"avermedia");
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ return;
+ }
+}
+
+/* Lifetec 9415 handling */
+
+void lt9415_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ int val = 0;
+
+ if (gpio_read() & 0x4000) {
+ t->audmode = V4L2_TUNER_MODE_MONO;
+ return;
+ }
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_LANG2) /* A2 SAP */
+ val = 0x0080;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO) /* A2 stereo */
+ val = 0x0880;
+ if ((t->audmode & V4L2_TUNER_MODE_LANG1) ||
+ (t->audmode & V4L2_TUNER_MODE_MONO))
+ val = 0;
+ gpio_bits(0x0880, val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"lt9415");
+ } else {
+ /* autodetect doesn't work with this card :-( */
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ return;
+ }
+}
+
+/* TDA9821 on TerraTV+ Bt848, Bt878 */
+void terratv_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int con = 0;
+
+ if (set) {
+ gpio_inout(0x180000,0x180000);
+ if (t->audmode & V4L2_TUNER_MODE_LANG2)
+ con = 0x080000;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO)
+ con = 0x180000;
+ gpio_bits(0x180000, con);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"terratv");
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+
+void winfast2000_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned long val = 0;
+
+ if (set) {
+ /*btor (0xc32000, BT848_GPIO_OUT_EN);*/
+ if (t->audmode & V4L2_TUNER_MODE_MONO) /* Mono */
+ val = 0x420000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG1) /* Mono */
+ val = 0x420000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG2) /* SAP */
+ val = 0x410000;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO) /* Stereo */
+ val = 0x020000;
+ if (val) {
+ gpio_bits(0x430000, val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"winfast2000");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+/*
+ * Dariusz Kowalewski <darekk@automex.pl>
+ * sound control for Prolink PV-BT878P+9B (PixelView PlayTV Pro FM+NICAM
+ * revision 9B has on-board TDA9874A sound decoder).
+ *
+ * Note: There are card variants without tda9874a. Forcing the "stereo sound route"
+ * will mute this cards.
+ */
+void pvbt878p9b_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int val = 0;
+
+ if (btv->radio_user)
+ return;
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_MONO) {
+ val = 0x01;
+ }
+ if ((t->audmode & (V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2))
+ || (t->audmode & V4L2_TUNER_MODE_STEREO)) {
+ val = 0x02;
+ }
+ if (val) {
+ gpio_bits(0x03,val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"pvbt878p9b");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+/*
+ * Dariusz Kowalewski <darekk@automex.pl>
+ * sound control for FlyVideo 2000S (with tda9874 decoder)
+ * based on pvbt878p9b_audio() - this is not tested, please fix!!!
+ */
+void fv2000s_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int val = 0xffff;
+
+ if (btv->radio_user)
+ return;
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_MONO) {
+ val = 0x0000;
+ }
+ if ((t->audmode & (V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2))
+ || (t->audmode & V4L2_TUNER_MODE_STEREO)) {
+ val = 0x1080; /*-dk-???: 0x0880, 0x0080, 0x1800 ... */
+ }
+ if (val != 0xffff) {
+ gpio_bits(0x1800, val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"fv2000s");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+/*
+ * sound control for Canopus WinDVR PCI
+ * Masaki Suzuki <masaki@btree.org>
+ */
+void windvr_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned long val = 0;
+
+ if (set) {
+ if (t->audmode & V4L2_TUNER_MODE_MONO)
+ val = 0x040000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG1)
+ val = 0;
+ if (t->audmode & V4L2_TUNER_MODE_LANG2)
+ val = 0x100000;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO)
+ val = 0;
+ if (val) {
+ gpio_bits(0x140000, val);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"windvr");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
+
+/*
+ * sound control for AD-TVK503
+ * Hiroshi Takekawa <sian@big.or.jp>
+ */
+void adtvk503_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
+{
+ unsigned int con = 0xffffff;
+
+ /* btaor(0x1e0000, ~0x1e0000, BT848_GPIO_OUT_EN); */
+
+ if (set) {
+ /* btor(***, BT848_GPIO_OUT_EN); */
+ if (t->audmode & V4L2_TUNER_MODE_LANG1)
+ con = 0x00000000;
+ if (t->audmode & V4L2_TUNER_MODE_LANG2)
+ con = 0x00180000;
+ if (t->audmode & V4L2_TUNER_MODE_STEREO)
+ con = 0x00000000;
+ if (t->audmode & V4L2_TUNER_MODE_MONO)
+ con = 0x00060000;
+ if (con != 0xffffff) {
+ gpio_bits(0x1e0000,con);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv, "adtvk503");
+ }
+ } else {
+ t->audmode = V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO |
+ V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
+ }
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.