From f1c78d340fc21adb01f89f9bee15c58b533bffd7 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Mon, 5 Oct 2009 00:34:04 -0300 Subject: [PATCH] [media] dib0700: fixup PLL config for PCTV 340e Based on a reference trace under Windows, reverse engineer the PLL config. Note that the xtal is not yet setup, and the timf cannot be determined yet because my reference trace doesn't actually achieve a signal lock. Signed-off-by: Devin Heitmueller Cc: Patrick Boettcher Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/dib0700_devices.c | 42 ++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/drivers/media/dvb/dvb-usb/dib0700_devices.c b/drivers/media/dvb/dvb-usb/dib0700_devices.c index aaf1eabf175..790fca63248 100644 --- a/drivers/media/dvb/dvb-usb/dib0700_devices.c +++ b/drivers/media/dvb/dvb-usb/dib0700_devices.c @@ -2735,13 +2735,53 @@ static struct dibx000_agc_config stk7700p_7000p_xc4000_agc_config = { .perform_agc_softsplit = 0x00, }; +/* validation: + reg 900 (0x0384) = 0x0e60 + reg 903 (0x0387) = 0x0027 + reg 18 (0x0012) = 0x0321 + reg 19 (0x0013) = 0x1620 + reg 21 (0x0015) = 0x0265 + reg 22 (0x0016) = 0x6cbd + reg 23 (0x0017) = 0x0138 + reg 24 (0x0018) = 0x1381 + reg 72 (0x0048) = 0xd257 + internal = 52500 + sampling = never seems to be used? + pll_prediv = 1 + pll_ratio = 7 + pll_range = 3 + pll_reset = 1 + pll_bypass = 0 + enable_refdiv = 0 + bypclk_div = 0 + IO_CLK_en_core = 1 + ADClkSrc = 1 + modulo = 0 + sad_cfg: = 0xd257 + refsel = (3 << 14) + sel = (1 << 12) + freq_15k = (599 << 0) + ifreq = 40201405 + timf = ? (need lock to compute) + xtal_hz = ? (val dependent on exact tuning freq) + */ +static struct dibx000_bandwidth_config stk7700p_xc4000_pll_config = { + 52500, 30000, // internal, sampling + 1, 7, 3, 1, 0, // pll_cfg: prediv, ratio, range, reset, bypass + 0, 0, 1, 1, 0, // misc: refdiv, bypclk_div, IO_CLK_en_core, ADClkSrc, modulo + (3 << 14) | (1 << 12) | (599 << 0), // sad_cfg: refsel, sel, freq_15k + 40201405, // ifreq + 20452225, // timf + 30000000, // xtal +}; + /* FIXME: none of these inputs are validated yet */ static struct dib7000p_config pctv_340e_config = { .output_mpeg2_in_188_bytes = 1, // validated L3317: 0x00eb=0x0066 .agc_config_count = 1, .agc = &stk7700p_7000p_xc4000_agc_config, - .bw = &stk7700p_pll_config, + .bw = &stk7700p_xc4000_pll_config, .gpio_dir = DIB7000M_GPIO_DEFAULT_DIRECTIONS, .gpio_val = DIB7000M_GPIO_DEFAULT_VALUES, -- 2.46.0