diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 04:13:41 +0200 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 04:13:41 +0200 |
commit | 9a0bf528b4d66b605f02634236da085595c22101 (patch) | |
tree | e9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/s5h1411.c | |
parent | [media] dvb: move the dvb core one level up (diff) | |
download | linux-9a0bf528b4d66b605f02634236da085595c22101.tar.xz linux-9a0bf528b4d66b605f02634236da085595c22101.zip |
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/s5h1411.c')
-rw-r--r-- | drivers/media/dvb/frontends/s5h1411.c | 951 |
1 files changed, 0 insertions, 951 deletions
diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c deleted file mode 100644 index 6cc4b7a9dd60..000000000000 --- a/drivers/media/dvb/frontends/s5h1411.c +++ /dev/null @@ -1,951 +0,0 @@ -/* - Samsung S5H1411 VSB/QAM demodulator driver - - Copyright (C) 2008 Steven Toth <stoth@linuxtv.org> - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include "dvb_frontend.h" -#include "s5h1411.h" - -struct s5h1411_state { - - struct i2c_adapter *i2c; - - /* configuration settings */ - const struct s5h1411_config *config; - - struct dvb_frontend frontend; - - fe_modulation_t current_modulation; - unsigned int first_tune:1; - - u32 current_frequency; - int if_freq; - - u8 inversion; -}; - -static int debug; - -#define dprintk(arg...) do { \ - if (debug) \ - printk(arg); \ - } while (0) - -/* Register values to initialise the demod, defaults to VSB */ -static struct init_tab { - u8 addr; - u8 reg; - u16 data; -} init_tab[] = { - { S5H1411_I2C_TOP_ADDR, 0x00, 0x0071, }, - { S5H1411_I2C_TOP_ADDR, 0x08, 0x0047, }, - { S5H1411_I2C_TOP_ADDR, 0x1c, 0x0400, }, - { S5H1411_I2C_TOP_ADDR, 0x1e, 0x0370, }, - { S5H1411_I2C_TOP_ADDR, 0x1f, 0x342c, }, - { S5H1411_I2C_TOP_ADDR, 0x24, 0x0231, }, - { S5H1411_I2C_TOP_ADDR, 0x25, 0x1011, }, - { S5H1411_I2C_TOP_ADDR, 0x26, 0x0f07, }, - { S5H1411_I2C_TOP_ADDR, 0x27, 0x0f04, }, - { S5H1411_I2C_TOP_ADDR, 0x28, 0x070f, }, - { S5H1411_I2C_TOP_ADDR, 0x29, 0x2820, }, - { S5H1411_I2C_TOP_ADDR, 0x2a, 0x102e, }, - { S5H1411_I2C_TOP_ADDR, 0x2b, 0x0220, }, - { S5H1411_I2C_TOP_ADDR, 0x2e, 0x0d0e, }, - { S5H1411_I2C_TOP_ADDR, 0x2f, 0x1013, }, - { S5H1411_I2C_TOP_ADDR, 0x31, 0x171b, }, - { S5H1411_I2C_TOP_ADDR, 0x32, 0x0e0f, }, - { S5H1411_I2C_TOP_ADDR, 0x33, 0x0f10, }, - { S5H1411_I2C_TOP_ADDR, 0x34, 0x170e, }, - { S5H1411_I2C_TOP_ADDR, 0x35, 0x4b10, }, - { S5H1411_I2C_TOP_ADDR, 0x36, 0x0f17, }, - { S5H1411_I2C_TOP_ADDR, 0x3c, 0x1577, }, - { S5H1411_I2C_TOP_ADDR, 0x3d, 0x081a, }, - { S5H1411_I2C_TOP_ADDR, 0x3e, 0x77ee, }, - { S5H1411_I2C_TOP_ADDR, 0x40, 0x1e09, }, - { S5H1411_I2C_TOP_ADDR, 0x41, 0x0f0c, }, - { S5H1411_I2C_TOP_ADDR, 0x42, 0x1f10, }, - { S5H1411_I2C_TOP_ADDR, 0x4d, 0x0509, }, - { S5H1411_I2C_TOP_ADDR, 0x4e, 0x0a00, }, - { S5H1411_I2C_TOP_ADDR, 0x50, 0x0000, }, - { S5H1411_I2C_TOP_ADDR, 0x5b, 0x0000, }, - { S5H1411_I2C_TOP_ADDR, 0x5c, 0x0008, }, - { S5H1411_I2C_TOP_ADDR, 0x57, 0x1101, }, - { S5H1411_I2C_TOP_ADDR, 0x65, 0x007c, }, - { S5H1411_I2C_TOP_ADDR, 0x68, 0x0512, }, - { S5H1411_I2C_TOP_ADDR, 0x69, 0x0258, }, - { S5H1411_I2C_TOP_ADDR, 0x70, 0x0004, }, - { S5H1411_I2C_TOP_ADDR, 0x71, 0x0007, }, - { S5H1411_I2C_TOP_ADDR, 0x76, 0x00a9, }, - { S5H1411_I2C_TOP_ADDR, 0x78, 0x3141, }, - { S5H1411_I2C_TOP_ADDR, 0x7a, 0x3141, }, - { S5H1411_I2C_TOP_ADDR, 0xb3, 0x8003, }, - { S5H1411_I2C_TOP_ADDR, 0xb5, 0xa6bb, }, - { S5H1411_I2C_TOP_ADDR, 0xb6, 0x0609, }, - { S5H1411_I2C_TOP_ADDR, 0xb7, 0x2f06, }, - { S5H1411_I2C_TOP_ADDR, 0xb8, 0x003f, }, - { S5H1411_I2C_TOP_ADDR, 0xb9, 0x2700, }, - { S5H1411_I2C_TOP_ADDR, 0xba, 0xfac8, }, - { S5H1411_I2C_TOP_ADDR, 0xbe, 0x1003, }, - { S5H1411_I2C_TOP_ADDR, 0xbf, 0x103f, }, - { S5H1411_I2C_TOP_ADDR, 0xce, 0x2000, }, - { S5H1411_I2C_TOP_ADDR, 0xcf, 0x0800, }, - { S5H1411_I2C_TOP_ADDR, 0xd0, 0x0800, }, - { S5H1411_I2C_TOP_ADDR, 0xd1, 0x0400, }, - { S5H1411_I2C_TOP_ADDR, 0xd2, 0x0800, }, - { S5H1411_I2C_TOP_ADDR, 0xd3, 0x2000, }, - { S5H1411_I2C_TOP_ADDR, 0xd4, 0x3000, }, - { S5H1411_I2C_TOP_ADDR, 0xdb, 0x4a9b, }, - { S5H1411_I2C_TOP_ADDR, 0xdc, 0x1000, }, - { S5H1411_I2C_TOP_ADDR, 0xde, 0x0001, }, - { S5H1411_I2C_TOP_ADDR, 0xdf, 0x0000, }, - { S5H1411_I2C_TOP_ADDR, 0xe3, 0x0301, }, - { S5H1411_I2C_QAM_ADDR, 0xf3, 0x0000, }, - { S5H1411_I2C_QAM_ADDR, 0xf3, 0x0001, }, - { S5H1411_I2C_QAM_ADDR, 0x08, 0x0600, }, - { S5H1411_I2C_QAM_ADDR, 0x18, 0x4201, }, - { S5H1411_I2C_QAM_ADDR, 0x1e, 0x6476, }, - { S5H1411_I2C_QAM_ADDR, 0x21, 0x0830, }, - { S5H1411_I2C_QAM_ADDR, 0x0c, 0x5679, }, - { S5H1411_I2C_QAM_ADDR, 0x0d, 0x579b, }, - { S5H1411_I2C_QAM_ADDR, 0x24, 0x0102, }, - { S5H1411_I2C_QAM_ADDR, 0x31, 0x7488, }, - { S5H1411_I2C_QAM_ADDR, 0x32, 0x0a08, }, - { S5H1411_I2C_QAM_ADDR, 0x3d, 0x8689, }, - { S5H1411_I2C_QAM_ADDR, 0x49, 0x0048, }, - { S5H1411_I2C_QAM_ADDR, 0x57, 0x2012, }, - { S5H1411_I2C_QAM_ADDR, 0x5d, 0x7676, }, - { S5H1411_I2C_QAM_ADDR, 0x04, 0x0400, }, - { S5H1411_I2C_QAM_ADDR, 0x58, 0x00c0, }, - { S5H1411_I2C_QAM_ADDR, 0x5b, 0x0100, }, -}; - -/* VSB SNR lookup table */ -static struct vsb_snr_tab { - u16 val; - u16 data; -} vsb_snr_tab[] = { - { 0x39f, 300, }, - { 0x39b, 295, }, - { 0x397, 290, }, - { 0x394, 285, }, - { 0x38f, 280, }, - { 0x38b, 275, }, - { 0x387, 270, }, - { 0x382, 265, }, - { 0x37d, 260, }, - { 0x377, 255, }, - { 0x370, 250, }, - { 0x36a, 245, }, - { 0x364, 240, }, - { 0x35b, 235, }, - { 0x353, 230, }, - { 0x349, 225, }, - { 0x340, 320, }, - { 0x337, 215, }, - { 0x327, 210, }, - { 0x31b, 205, }, - { 0x310, 200, }, - { 0x302, 195, }, - { 0x2f3, 190, }, - { 0x2e4, 185, }, - { 0x2d7, 180, }, - { 0x2cd, 175, }, - { 0x2bb, 170, }, - { 0x2a9, 165, }, - { 0x29e, 160, }, - { 0x284, 155, }, - { 0x27a, 150, }, - { 0x260, 145, }, - { 0x23a, 140, }, - { 0x224, 135, }, - { 0x213, 130, }, - { 0x204, 125, }, - { 0x1fe, 120, }, - { 0, 0, }, -}; - -/* QAM64 SNR lookup table */ -static struct qam64_snr_tab { - u16 val; - u16 data; -} qam64_snr_tab[] = { - { 0x0001, 0, }, - { 0x0af0, 300, }, - { 0x0d80, 290, }, - { 0x10a0, 280, }, - { 0x14b5, 270, }, - { 0x1590, 268, }, - { 0x1680, 266, }, - { 0x17b0, 264, }, - { 0x18c0, 262, }, - { 0x19b0, 260, }, - { 0x1ad0, 258, }, - { 0x1d00, 256, }, - { 0x1da0, 254, }, - { 0x1ef0, 252, }, - { 0x2050, 250, }, - { 0x20f0, 249, }, - { 0x21d0, 248, }, - { 0x22b0, 247, }, - { 0x23a0, 246, }, - { 0x2470, 245, }, - { 0x24f0, 244, }, - { 0x25a0, 243, }, - { 0x26c0, 242, }, - { 0x27b0, 241, }, - { 0x28d0, 240, }, - { 0x29b0, 239, }, - { 0x2ad0, 238, }, - { 0x2ba0, 237, }, - { 0x2c80, 236, }, - { 0x2d20, 235, }, - { 0x2e00, 234, }, - { 0x2f10, 233, }, - { 0x3050, 232, }, - { 0x3190, 231, }, - { 0x3300, 230, }, - { 0x3340, 229, }, - { 0x3200, 228, }, - { 0x3550, 227, }, - { 0x3610, 226, }, - { 0x3600, 225, }, - { 0x3700, 224, }, - { 0x3800, 223, }, - { 0x3920, 222, }, - { 0x3a20, 221, }, - { 0x3b30, 220, }, - { 0x3d00, 219, }, - { 0x3e00, 218, }, - { 0x4000, 217, }, - { 0x4100, 216, }, - { 0x4300, 215, }, - { 0x4400, 214, }, - { 0x4600, 213, }, - { 0x4700, 212, }, - { 0x4800, 211, }, - { 0x4a00, 210, }, - { 0x4b00, 209, }, - { 0x4d00, 208, }, - { 0x4f00, 207, }, - { 0x5050, 206, }, - { 0x5200, 205, }, - { 0x53c0, 204, }, - { 0x5450, 203, }, - { 0x5650, 202, }, - { 0x5820, 201, }, - { 0x6000, 200, }, - { 0xffff, 0, }, -}; - -/* QAM256 SNR lookup table */ -static struct qam256_snr_tab { - u16 val; - u16 data; -} qam256_snr_tab[] = { - { 0x0001, 0, }, - { 0x0970, 400, }, - { 0x0a90, 390, }, - { 0x0b90, 380, }, - { 0x0d90, 370, }, - { 0x0ff0, 360, }, - { 0x1240, 350, }, - { 0x1345, 348, }, - { 0x13c0, 346, }, - { 0x14c0, 344, }, - { 0x1500, 342, }, - { 0x1610, 340, }, - { 0x1700, 338, }, - { 0x1800, 336, }, - { 0x18b0, 334, }, - { 0x1900, 332, }, - { 0x1ab0, 330, }, - { 0x1bc0, 328, }, - { 0x1cb0, 326, }, - { 0x1db0, 324, }, - { 0x1eb0, 322, }, - { 0x2030, 320, }, - { 0x2200, 318, }, - { 0x2280, 316, }, - { 0x2410, 314, }, - { 0x25b0, 312, }, - { 0x27a0, 310, }, - { 0x2840, 308, }, - { 0x29d0, 306, }, - { 0x2b10, 304, }, - { 0x2d30, 302, }, - { 0x2f20, 300, }, - { 0x30c0, 298, }, - { 0x3260, 297, }, - { 0x32c0, 296, }, - { 0x3300, 295, }, - { 0x33b0, 294, }, - { 0x34b0, 293, }, - { 0x35a0, 292, }, - { 0x3650, 291, }, - { 0x3800, 290, }, - { 0x3900, 289, }, - { 0x3a50, 288, }, - { 0x3b30, 287, }, - { 0x3cb0, 286, }, - { 0x3e20, 285, }, - { 0x3fa0, 284, }, - { 0x40a0, 283, }, - { 0x41c0, 282, }, - { 0x42f0, 281, }, - { 0x44a0, 280, }, - { 0x4600, 279, }, - { 0x47b0, 278, }, - { 0x4900, 277, }, - { 0x4a00, 276, }, - { 0x4ba0, 275, }, - { 0x4d00, 274, }, - { 0x4f00, 273, }, - { 0x5000, 272, }, - { 0x51f0, 272, }, - { 0x53a0, 270, }, - { 0x5520, 269, }, - { 0x5700, 268, }, - { 0x5800, 267, }, - { 0x5a00, 266, }, - { 0x5c00, 265, }, - { 0x5d00, 264, }, - { 0x5f00, 263, }, - { 0x6000, 262, }, - { 0x6200, 261, }, - { 0x6400, 260, }, - { 0xffff, 0, }, -}; - -/* 8 bit registers, 16 bit values */ -static int s5h1411_writereg(struct s5h1411_state *state, - u8 addr, u8 reg, u16 data) -{ - int ret; - u8 buf[] = { reg, data >> 8, data & 0xff }; - - struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = buf, .len = 3 }; - - ret = i2c_transfer(state->i2c, &msg, 1); - - if (ret != 1) - printk(KERN_ERR "%s: writereg error 0x%02x 0x%02x 0x%04x, " - "ret == %i)\n", __func__, addr, reg, data, ret); - - return (ret != 1) ? -1 : 0; -} - -static u16 s5h1411_readreg(struct s5h1411_state *state, u8 addr, u8 reg) -{ - int ret; - u8 b0[] = { reg }; - u8 b1[] = { 0, 0 }; - - struct i2c_msg msg[] = { - { .addr = addr, .flags = 0, .buf = b0, .len = 1 }, - { .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 } }; - - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) - printk(KERN_ERR "%s: readreg error (ret == %i)\n", - __func__, ret); - return (b1[0] << 8) | b1[1]; -} - -static int s5h1411_softreset(struct dvb_frontend *fe) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s()\n", __func__); - - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf7, 0); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf7, 1); - return 0; -} - -static int s5h1411_set_if_freq(struct dvb_frontend *fe, int KHz) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s(%d KHz)\n", __func__, KHz); - - switch (KHz) { - case 3250: - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x10d5); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x5342); - s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x10d9); - break; - case 3500: - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x1225); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x1e96); - s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x1225); - break; - case 4000: - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x14bc); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0xb53e); - s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x14bd); - break; - default: - dprintk("%s(%d KHz) Invalid, defaulting to 5380\n", - __func__, KHz); - /* no break, need to continue */ - case 5380: - case 44000: - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x38, 0x1be4); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x39, 0x3655); - s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x2c, 0x1be4); - break; - } - - state->if_freq = KHz; - - return 0; -} - -static int s5h1411_set_mpeg_timing(struct dvb_frontend *fe, int mode) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 val; - - dprintk("%s(%d)\n", __func__, mode); - - val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xbe) & 0xcfff; - switch (mode) { - case S5H1411_MPEGTIMING_CONTINOUS_INVERTING_CLOCK: - val |= 0x0000; - break; - case S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK: - dprintk("%s(%d) Mode1 or Defaulting\n", __func__, mode); - val |= 0x1000; - break; - case S5H1411_MPEGTIMING_NONCONTINOUS_INVERTING_CLOCK: - val |= 0x2000; - break; - case S5H1411_MPEGTIMING_NONCONTINOUS_NONINVERTING_CLOCK: - val |= 0x3000; - break; - default: - return -EINVAL; - } - - /* Configure MPEG Signal Timing charactistics */ - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xbe, val); -} - -static int s5h1411_set_spectralinversion(struct dvb_frontend *fe, int inversion) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 val; - - dprintk("%s(%d)\n", __func__, inversion); - val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x24) & ~0x1000; - - if (inversion == 1) - val |= 0x1000; /* Inverted */ - - state->inversion = inversion; - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x24, val); -} - -static int s5h1411_set_serialmode(struct dvb_frontend *fe, int serial) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 val; - - dprintk("%s(%d)\n", __func__, serial); - val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xbd) & ~0x100; - - if (serial == 1) - val |= 0x100; - - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xbd, val); -} - -static int s5h1411_enable_modulation(struct dvb_frontend *fe, - fe_modulation_t m) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s(0x%08x)\n", __func__, m); - - if ((state->first_tune == 0) && (m == state->current_modulation)) { - dprintk("%s() Already at desired modulation. Skipping...\n", - __func__); - return 0; - } - - switch (m) { - case VSB_8: - dprintk("%s() VSB_8\n", __func__); - s5h1411_set_if_freq(fe, state->config->vsb_if); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x00, 0x71); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf6, 0x00); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xcd, 0xf1); - break; - case QAM_64: - case QAM_256: - case QAM_AUTO: - dprintk("%s() QAM_AUTO (64/256)\n", __func__); - s5h1411_set_if_freq(fe, state->config->qam_if); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0x00, 0x0171); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf6, 0x0001); - s5h1411_writereg(state, S5H1411_I2C_QAM_ADDR, 0x16, 0x1101); - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xcd, 0x00f0); - break; - default: - dprintk("%s() Invalid modulation\n", __func__); - return -EINVAL; - } - - state->current_modulation = m; - state->first_tune = 0; - s5h1411_softreset(fe); - - return 0; -} - -static int s5h1411_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s(%d)\n", __func__, enable); - - if (enable) - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1); - else - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 0); -} - -static int s5h1411_set_gpio(struct dvb_frontend *fe, int enable) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 val; - - dprintk("%s(%d)\n", __func__, enable); - - val = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xe0) & ~0x02; - - if (enable) - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xe0, - val | 0x02); - else - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xe0, val); -} - -static int s5h1411_set_powerstate(struct dvb_frontend *fe, int enable) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s(%d)\n", __func__, enable); - - if (enable) - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf4, 1); - else { - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf4, 0); - s5h1411_softreset(fe); - } - - return 0; -} - -static int s5h1411_sleep(struct dvb_frontend *fe) -{ - return s5h1411_set_powerstate(fe, 1); -} - -static int s5h1411_register_reset(struct dvb_frontend *fe) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s()\n", __func__); - - return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf3, 0); -} - -/* Talk to the demod, set the FEC, GUARD, QAM settings etc */ -static int s5h1411_set_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct s5h1411_state *state = fe->demodulator_priv; - - dprintk("%s(frequency=%d)\n", __func__, p->frequency); - - s5h1411_softreset(fe); - - state->current_frequency = p->frequency; - - s5h1411_enable_modulation(fe, p->modulation); - - if (fe->ops.tuner_ops.set_params) { - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - fe->ops.tuner_ops.set_params(fe); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - } - - /* Issue a reset to the demod so it knows to resync against the - newly tuned frequency */ - s5h1411_softreset(fe); - - return 0; -} - -/* Reset the demod hardware and reset all of the configuration registers - to a default state. */ -static int s5h1411_init(struct dvb_frontend *fe) -{ - struct s5h1411_state *state = fe->demodulator_priv; - int i; - - dprintk("%s()\n", __func__); - - s5h1411_set_powerstate(fe, 0); - s5h1411_register_reset(fe); - - for (i = 0; i < ARRAY_SIZE(init_tab); i++) - s5h1411_writereg(state, init_tab[i].addr, - init_tab[i].reg, - init_tab[i].data); - - /* The datasheet says that after initialisation, VSB is default */ - state->current_modulation = VSB_8; - - /* Although the datasheet says it's in VSB, empirical evidence - shows problems getting lock on the first tuning request. Make - sure we call enable_modulation the first time around */ - state->first_tune = 1; - - if (state->config->output_mode == S5H1411_SERIAL_OUTPUT) - /* Serial */ - s5h1411_set_serialmode(fe, 1); - else - /* Parallel */ - s5h1411_set_serialmode(fe, 0); - - s5h1411_set_spectralinversion(fe, state->config->inversion); - s5h1411_set_if_freq(fe, state->config->vsb_if); - s5h1411_set_gpio(fe, state->config->gpio); - s5h1411_set_mpeg_timing(fe, state->config->mpeg_timing); - s5h1411_softreset(fe); - - /* Note: Leaving the I2C gate closed. */ - s5h1411_i2c_gate_ctrl(fe, 0); - - return 0; -} - -static int s5h1411_read_status(struct dvb_frontend *fe, fe_status_t *status) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 reg; - u32 tuner_status = 0; - - *status = 0; - - /* Register F2 bit 15 = Master Lock, removed */ - - switch (state->current_modulation) { - case QAM_64: - case QAM_256: - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf0); - if (reg & 0x10) /* QAM FEC Lock */ - *status |= FE_HAS_SYNC | FE_HAS_LOCK; - if (reg & 0x100) /* QAM EQ Lock */ - *status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL; - - break; - case VSB_8: - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf2); - if (reg & 0x1000) /* FEC Lock */ - *status |= FE_HAS_SYNC | FE_HAS_LOCK; - if (reg & 0x2000) /* EQ Lock */ - *status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL; - - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x53); - if (reg & 0x1) /* AFC Lock */ - *status |= FE_HAS_SIGNAL; - - break; - default: - return -EINVAL; - } - - switch (state->config->status_mode) { - case S5H1411_DEMODLOCKING: - if (*status & FE_HAS_VITERBI) - *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; - break; - case S5H1411_TUNERLOCKING: - /* Get the tuner status */ - if (fe->ops.tuner_ops.get_status) { - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - fe->ops.tuner_ops.get_status(fe, &tuner_status); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - } - if (tuner_status) - *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; - break; - } - - dprintk("%s() status 0x%08x\n", __func__, *status); - - return 0; -} - -static int s5h1411_qam256_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) -{ - int i, ret = -EINVAL; - dprintk("%s()\n", __func__); - - for (i = 0; i < ARRAY_SIZE(qam256_snr_tab); i++) { - if (v < qam256_snr_tab[i].val) { - *snr = qam256_snr_tab[i].data; - ret = 0; - break; - } - } - return ret; -} - -static int s5h1411_qam64_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) -{ - int i, ret = -EINVAL; - dprintk("%s()\n", __func__); - - for (i = 0; i < ARRAY_SIZE(qam64_snr_tab); i++) { - if (v < qam64_snr_tab[i].val) { - *snr = qam64_snr_tab[i].data; - ret = 0; - break; - } - } - return ret; -} - -static int s5h1411_vsb_lookup_snr(struct dvb_frontend *fe, u16 *snr, u16 v) -{ - int i, ret = -EINVAL; - dprintk("%s()\n", __func__); - - for (i = 0; i < ARRAY_SIZE(vsb_snr_tab); i++) { - if (v > vsb_snr_tab[i].val) { - *snr = vsb_snr_tab[i].data; - ret = 0; - break; - } - } - dprintk("%s() snr=%d\n", __func__, *snr); - return ret; -} - -static int s5h1411_read_snr(struct dvb_frontend *fe, u16 *snr) -{ - struct s5h1411_state *state = fe->demodulator_priv; - u16 reg; - dprintk("%s()\n", __func__); - - switch (state->current_modulation) { - case QAM_64: - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf1); - return s5h1411_qam64_lookup_snr(fe, snr, reg); - case QAM_256: - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xf1); - return s5h1411_qam256_lookup_snr(fe, snr, reg); - case VSB_8: - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, - 0xf2) & 0x3ff; - return s5h1411_vsb_lookup_snr(fe, snr, reg); - default: - break; - } - - return -EINVAL; -} - -static int s5h1411_read_signal_strength(struct dvb_frontend *fe, - u16 *signal_strength) -{ - /* borrowed from lgdt330x.c - * - * Calculate strength from SNR up to 35dB - * Even though the SNR can go higher than 35dB, - * there is some comfort factor in having a range of - * strong signals that can show at 100% - */ - u16 snr; - u32 tmp; - int ret = s5h1411_read_snr(fe, &snr); - - *signal_strength = 0; - - if (0 == ret) { - /* The following calculation method was chosen - * purely for the sake of code re-use from the - * other demod drivers that use this method */ - - /* Convert from SNR in dB * 10 to 8.24 fixed-point */ - tmp = (snr * ((1 << 24) / 10)); - - /* Convert from 8.24 fixed-point to - * scale the range 0 - 35*2^24 into 0 - 65535*/ - if (tmp >= 8960 * 0x10000) - *signal_strength = 0xffff; - else - *signal_strength = tmp / 8960; - } - - return ret; -} - -static int s5h1411_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) -{ - struct s5h1411_state *state = fe->demodulator_priv; - - *ucblocks = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0xc9); - - return 0; -} - -static int s5h1411_read_ber(struct dvb_frontend *fe, u32 *ber) -{ - return s5h1411_read_ucblocks(fe, ber); -} - -static int s5h1411_get_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct s5h1411_state *state = fe->demodulator_priv; - - p->frequency = state->current_frequency; - p->modulation = state->current_modulation; - - return 0; -} - -static int s5h1411_get_tune_settings(struct dvb_frontend *fe, - struct dvb_frontend_tune_settings *tune) -{ - tune->min_delay_ms = 1000; - return 0; -} - -static void s5h1411_release(struct dvb_frontend *fe) -{ - struct s5h1411_state *state = fe->demodulator_priv; - kfree(state); -} - -static struct dvb_frontend_ops s5h1411_ops; - -struct dvb_frontend *s5h1411_attach(const struct s5h1411_config *config, - struct i2c_adapter *i2c) -{ - struct s5h1411_state *state = NULL; - u16 reg; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct s5h1411_state), GFP_KERNEL); - if (state == NULL) - goto error; - - /* setup the state */ - state->config = config; - state->i2c = i2c; - state->current_modulation = VSB_8; - state->inversion = state->config->inversion; - - /* check if the demod exists */ - reg = s5h1411_readreg(state, S5H1411_I2C_TOP_ADDR, 0x05); - if (reg != 0x0066) - goto error; - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &s5h1411_ops, - sizeof(struct dvb_frontend_ops)); - - state->frontend.demodulator_priv = state; - - if (s5h1411_init(&state->frontend) != 0) { - printk(KERN_ERR "%s: Failed to initialize correctly\n", - __func__); - goto error; - } - - /* Note: Leaving the I2C gate open here. */ - s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1); - - /* Put the device into low-power mode until first use */ - s5h1411_set_powerstate(&state->frontend, 1); - - return &state->frontend; - -error: - kfree(state); - return NULL; -} -EXPORT_SYMBOL(s5h1411_attach); - -static struct dvb_frontend_ops s5h1411_ops = { - .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, - .info = { - .name = "Samsung S5H1411 QAM/8VSB Frontend", - .frequency_min = 54000000, - .frequency_max = 858000000, - .frequency_stepsize = 62500, - .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB - }, - - .init = s5h1411_init, - .sleep = s5h1411_sleep, - .i2c_gate_ctrl = s5h1411_i2c_gate_ctrl, - .set_frontend = s5h1411_set_frontend, - .get_frontend = s5h1411_get_frontend, - .get_tune_settings = s5h1411_get_tune_settings, - .read_status = s5h1411_read_status, - .read_ber = s5h1411_read_ber, - .read_signal_strength = s5h1411_read_signal_strength, - .read_snr = s5h1411_read_snr, - .read_ucblocks = s5h1411_read_ucblocks, - .release = s5h1411_release, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Enable verbose debug messages"); - -MODULE_DESCRIPTION("Samsung S5H1411 QAM-B/ATSC Demodulator driver"); -MODULE_AUTHOR("Steven Toth"); -MODULE_LICENSE("GPL"); - -/* - * Local variables: - * c-basic-offset: 8 - */ |