Commit f1c78d34 authored by Devin Heitmueller's avatar Devin Heitmueller Committed by Mauro Carvalho Chehab

[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: default avatarDevin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 799ed11a
......@@ -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,
......
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