From: Richard Vollkommer Date: Sat, 25 Oct 2014 20:17:23 +0000 (-0300) Subject: [media] au8522: improve lock performance with ZeeVee modulators X-Git-Tag: v3.19-rc1~126^2~255 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=dcc33cc57d4ad095df694a102c54b8342b814582;p=karo-tx-linux.git [media] au8522: improve lock performance with ZeeVee modulators Improves lock performance with signals from the ZeeVee family of modulators. Signed-off-by: Richard Vollkommer Cc: Devin Heitmueller Signed-off-by: Michael Ira Krufky Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/dvb-frontends/au8522_dig.c b/drivers/media/dvb-frontends/au8522_dig.c index a68974f6d708..5d06c99b0e97 100644 --- a/drivers/media/dvb-frontends/au8522_dig.c +++ b/drivers/media/dvb-frontends/au8522_dig.c @@ -29,6 +29,7 @@ #include "au8522_priv.h" static int debug; +static int zv_mode = 1; /* default to on */ #define dprintk(arg...)\ do { if (debug)\ @@ -469,6 +470,87 @@ static struct { { 0x8526, 0x01 }, }; +static struct { + u16 reg; + u16 data; +} QAM256_mod_tab_zv_mode[] = { + { 0x80a3, 0x09 }, + { 0x80a4, 0x00 }, + { 0x8081, 0xc4 }, + { 0x80a5, 0x40 }, + { 0x80b5, 0xfb }, + { 0x80b6, 0x8e }, + { 0x80b7, 0x39 }, + { 0x80aa, 0x77 }, + { 0x80ad, 0x77 }, + { 0x80a6, 0x67 }, + { 0x8262, 0x20 }, + { 0x821c, 0x30 }, + { 0x80b8, 0x3e }, + { 0x80b9, 0xf0 }, + { 0x80ba, 0x01 }, + { 0x80bb, 0x18 }, + { 0x80bc, 0x50 }, + { 0x80bd, 0x00 }, + { 0x80be, 0xea }, + { 0x80bf, 0xef }, + { 0x80c0, 0xfc }, + { 0x80c1, 0xbd }, + { 0x80c2, 0x1f }, + { 0x80c3, 0xfc }, + { 0x80c4, 0xdd }, + { 0x80c5, 0xaf }, + { 0x80c6, 0x00 }, + { 0x80c7, 0x38 }, + { 0x80c8, 0x30 }, + { 0x80c9, 0x05 }, + { 0x80ca, 0x4a }, + { 0x80cb, 0xd0 }, + { 0x80cc, 0x01 }, + { 0x80cd, 0xd9 }, + { 0x80ce, 0x6f }, + { 0x80cf, 0xf9 }, + { 0x80d0, 0x70 }, + { 0x80d1, 0xdf }, + { 0x80d2, 0xf7 }, + { 0x80d3, 0xc2 }, + { 0x80d4, 0xdf }, + { 0x80d5, 0x02 }, + { 0x80d6, 0x9a }, + { 0x80d7, 0xd0 }, + { 0x8250, 0x0d }, + { 0x8251, 0xcd }, + { 0x8252, 0xe0 }, + { 0x8253, 0x05 }, + { 0x8254, 0xa7 }, + { 0x8255, 0xff }, + { 0x8256, 0xed }, + { 0x8257, 0x5b }, + { 0x8258, 0xae }, + { 0x8259, 0xe6 }, + { 0x825a, 0x3d }, + { 0x825b, 0x0f }, + { 0x825c, 0x0d }, + { 0x825d, 0xea }, + { 0x825e, 0xf2 }, + { 0x825f, 0x51 }, + { 0x8260, 0xf5 }, + { 0x8261, 0x06 }, + { 0x821a, 0x01 }, + { 0x8546, 0x40 }, + { 0x8210, 0x26 }, + { 0x8211, 0xf6 }, + { 0x8212, 0x84 }, + { 0x8213, 0x02 }, + { 0x8502, 0x01 }, + { 0x8121, 0x04 }, + { 0x8122, 0x04 }, + { 0x852e, 0x10 }, + { 0x80a4, 0xca }, + { 0x80a7, 0x40 }, + { 0x8526, 0x01 }, +}; + static int au8522_enable_modulation(struct dvb_frontend *fe, fe_modulation_t m) { @@ -495,12 +577,23 @@ static int au8522_enable_modulation(struct dvb_frontend *fe, au8522_set_if(fe, state->config->qam_if); break; case QAM_256: - dprintk("%s() QAM 256\n", __func__); - for (i = 0; i < ARRAY_SIZE(QAM256_mod_tab); i++) - au8522_writereg(state, - QAM256_mod_tab[i].reg, - QAM256_mod_tab[i].data); - au8522_set_if(fe, state->config->qam_if); + if (zv_mode) { + dprintk("%s() QAM 256 (zv_mode)\n", __func__); + for (i = 0; i < ARRAY_SIZE(QAM256_mod_tab_zv_mode); i++) + au8522_writereg(state, + QAM256_mod_tab_zv_mode[i].reg, + QAM256_mod_tab_zv_mode[i].data); + au8522_set_if(fe, state->config->qam_if); + msleep(100); + au8522_writereg(state, 0x821a, 0x00); + } else { + dprintk("%s() QAM 256\n", __func__); + for (i = 0; i < ARRAY_SIZE(QAM256_mod_tab); i++) + au8522_writereg(state, + QAM256_mod_tab[i].reg, + QAM256_mod_tab[i].data); + au8522_set_if(fe, state->config->qam_if); + } break; default: dprintk("%s() Invalid modulation\n", __func__); @@ -537,7 +630,12 @@ static int au8522_set_frontend(struct dvb_frontend *fe) return ret; /* Allow the tuner to settle */ - msleep(100); + if (zv_mode) { + dprintk("%s() increase tuner settling time for zv_mode\n", + __func__); + msleep(250); + } else + msleep(100); au8522_enable_modulation(fe, c->modulation); @@ -823,6 +921,11 @@ static struct dvb_frontend_ops au8522_ops = { module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Enable verbose debug messages"); +module_param(zv_mode, int, 0644); +MODULE_PARM_DESC(zv_mode, "Turn on/off ZeeVee modulator compatability mode (default:on).\n" + "\t\ton - modified AU8522 QAM256 initialization.\n" + "\t\tProvides faster lock when using ZeeVee modulator based sources"); + MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver"); MODULE_AUTHOR("Steven Toth"); MODULE_LICENSE("GPL");