diff options
Diffstat (limited to 'linux/drivers/media/dvb/frontends')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/Kconfig | 34 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/Makefile | 1 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/au8522.c | 45 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/au8522.h | 9 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/dib0070.h | 8 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/dib7000p.c | 3 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/dib7000p.h | 41 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/drx397xD.c | 34 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/drx397xD.h | 2 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/lgs8gl5.c | 478 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/frontends/lgs8gl5.h | 45 |
11 files changed, 651 insertions, 49 deletions
diff --git a/linux/drivers/media/dvb/frontends/Kconfig b/linux/drivers/media/dvb/frontends/Kconfig index fa7f0c563..774f5c2a7 100644 --- a/linux/drivers/media/dvb/frontends/Kconfig +++ b/linux/drivers/media/dvb/frontends/Kconfig @@ -97,9 +97,8 @@ comment "DVB-T (terrestrial) frontends" config DVB_SP8870 tristate "Spase sp8870 based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help A DVB-T tuner module. Say Y when you want to support this frontend. @@ -110,9 +109,8 @@ config DVB_SP8870 config DVB_SP887X tristate "Spase sp887x based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help A DVB-T tuner module. Say Y when you want to support this frontend. @@ -137,9 +135,8 @@ config DVB_CX22702 config DVB_DRX397XD tristate "Micronas DRX3975D/DRX3977D based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help A DVB-T tuner module. Say Y when you want to support this frontend. @@ -158,9 +155,8 @@ config DVB_L64781 config DVB_TDA1004X tristate "Philips TDA10045H/TDA10046H based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help A DVB-T tuner module. Say Y when you want to support this frontend. @@ -225,9 +221,8 @@ config DVB_DIB7000P config DVB_TDA10048 tristate "Philips TDA10048HN based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help A DVB-T tuner module. Say Y when you want to support this frontend. @@ -267,9 +262,8 @@ comment "ATSC (North American/Korean Terrestrial/Cable DTV) frontends" config DVB_NXT200X tristate "NxtWave Communications NXT2002/NXT2004 based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want to support this frontend. @@ -282,9 +276,8 @@ config DVB_NXT200X config DVB_OR51211 tristate "Oren OR51211 based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help An ATSC 8VSB tuner module. Say Y when you want to support this frontend. @@ -295,9 +288,8 @@ config DVB_OR51211 config DVB_OR51132 tristate "Oren OR51132 based" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want to support this frontend. @@ -311,9 +303,8 @@ config DVB_OR51132 config DVB_BCM3510 tristate "Broadcom BCM3510" - depends on DVB_CORE && I2C && HOTPLUG + depends on DVB_CORE && I2C default m if DVB_FE_CUSTOMISE - select FW_LOADER help An ATSC 8VSB/16VSB and QAM64/256 tuner module. Say Y when you want to support this frontend. @@ -394,4 +385,11 @@ config DVB_ISL6421 help An SEC control chip. +config DVB_LGS8GL5 + tristate "Silicon Legend LGS-8GL5 demodulator (OFDM)" + depends on DVB_CORE && I2C + default m if DVB_FE_CUSTOMISE + help + A DMB-TH tuner module. Say Y when you want to support this frontend. + endmenu diff --git a/linux/drivers/media/dvb/frontends/Makefile b/linux/drivers/media/dvb/frontends/Makefile index 028da5561..262eaa429 100644 --- a/linux/drivers/media/dvb/frontends/Makefile +++ b/linux/drivers/media/dvb/frontends/Makefile @@ -48,3 +48,4 @@ obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o obj-$(CONFIG_DVB_AU8522) += au8522.o obj-$(CONFIG_DVB_TDA10048) += tda10048.o obj-$(CONFIG_DVB_S5H1411) += s5h1411.o +obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o diff --git a/linux/drivers/media/dvb/frontends/au8522.c b/linux/drivers/media/dvb/frontends/au8522.c index 37f6260e1..d946c8beb 100644 --- a/linux/drivers/media/dvb/frontends/au8522.c +++ b/linux/drivers/media/dvb/frontends/au8522.c @@ -304,6 +304,43 @@ static int au8522_mse2snr_lookup(struct mse2snr_tab *tab, int sz, int mse, return ret; } +static int au8522_set_if(struct dvb_frontend *fe, enum au8522_if_freq if_freq) +{ + struct au8522_state *state = fe->demodulator_priv; + u8 r0b5, r0b6, r0b7; + char *ifmhz; + + switch (if_freq) { + case AU8522_IF_3_25MHZ: + ifmhz = "3.25"; + r0b5 = 0x00; + r0b6 = 0x3d; + r0b7 = 0xa0; + break; + case AU8522_IF_4MHZ: + ifmhz = "4.00"; + r0b5 = 0x00; + r0b6 = 0x4b; + r0b7 = 0xd9; + break; + case AU8522_IF_6MHZ: + ifmhz = "6.00"; + r0b5 = 0xfb; + r0b6 = 0x8e; + r0b7 = 0x39; + break; + default: + dprintk("%s() IF Frequency not supported\n", __func__); + return -EINVAL; + } + dprintk("%s() %s MHz\n", __func__, ifmhz); + au8522_writereg(state, 0x80b5, r0b5); + au8522_writereg(state, 0x80b6, r0b6); + au8522_writereg(state, 0x80b7, r0b7); + + return 0; +} + /* VSB Modulation table */ static struct { u16 reg; @@ -334,9 +371,6 @@ static struct { { 0x80af, 0x66 }, { 0x821b, 0xcc }, { 0x821d, 0x80 }, - { 0x80b5, 0xfb }, - { 0x80b6, 0x8e }, - { 0x80b7, 0x39 }, { 0x80a4, 0xe8 }, { 0x8231, 0x13 }, }; @@ -350,9 +384,6 @@ static struct { { 0x80a4, 0x00 }, { 0x8081, 0xc4 }, { 0x80a5, 0x40 }, - { 0x80b5, 0xfb }, - { 0x80b6, 0x8e }, - { 0x80b7, 0x39 }, { 0x80aa, 0x77 }, { 0x80ad, 0x77 }, { 0x80a6, 0x67 }, @@ -438,6 +469,7 @@ static int au8522_enable_modulation(struct dvb_frontend *fe, au8522_writereg(state, VSB_mod_tab[i].reg, VSB_mod_tab[i].data); + au8522_set_if(fe, state->config->vsb_if); break; case QAM_64: case QAM_256: @@ -446,6 +478,7 @@ static int au8522_enable_modulation(struct dvb_frontend *fe, au8522_writereg(state, QAM_mod_tab[i].reg, QAM_mod_tab[i].data); + au8522_set_if(fe, state->config->qam_if); break; default: dprintk("%s() Invalid modulation\n", __func__); diff --git a/linux/drivers/media/dvb/frontends/au8522.h b/linux/drivers/media/dvb/frontends/au8522.h index d7affa3cd..afc9af26e 100644 --- a/linux/drivers/media/dvb/frontends/au8522.h +++ b/linux/drivers/media/dvb/frontends/au8522.h @@ -24,6 +24,12 @@ #include <linux/dvb/frontend.h> +enum au8522_if_freq { + AU8522_IF_6MHZ = 0, + AU8522_IF_4MHZ, + AU8522_IF_3_25MHZ, +}; + struct au8522_config { /* the demodulator's i2c address */ u8 demod_address; @@ -32,6 +38,9 @@ struct au8522_config { #define AU8522_TUNERLOCKING 0 #define AU8522_DEMODLOCKING 1 u8 status_mode; + + enum au8522_if_freq vsb_if; + enum au8522_if_freq qam_if; }; #if defined(CONFIG_DVB_AU8522) || \ diff --git a/linux/drivers/media/dvb/frontends/dib0070.h b/linux/drivers/media/dvb/frontends/dib0070.h index 3eedfdf50..21f2c5161 100644 --- a/linux/drivers/media/dvb/frontends/dib0070.h +++ b/linux/drivers/media/dvb/frontends/dib0070.h @@ -41,6 +41,7 @@ struct dib0070_config { extern struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0070_config *cfg); +extern u16 dib0070_wbd_offset(struct dvb_frontend *); #else static inline struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, @@ -49,9 +50,14 @@ static inline struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } + +static inline u16 dib0070_wbd_offset(struct dvb_frontend *fe) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return -ENODEV; +} #endif extern void dib0070_ctrl_agc_filter(struct dvb_frontend *, uint8_t open); -extern u16 dib0070_wbd_offset(struct dvb_frontend *); #endif diff --git a/linux/drivers/media/dvb/frontends/dib7000p.c b/linux/drivers/media/dvb/frontends/dib7000p.c index c74d373b6..ebb7594e3 100644 --- a/linux/drivers/media/dvb/frontends/dib7000p.c +++ b/linux/drivers/media/dvb/frontends/dib7000p.c @@ -1359,7 +1359,8 @@ struct dvb_frontend * dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, /* Ensure the output mode remains at the previous default if it's * not specifically set by the caller. */ - if (st->cfg.output_mode != OUTMODE_MPEG2_SERIAL) + if ((st->cfg.output_mode != OUTMODE_MPEG2_SERIAL) && + (st->cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK)) st->cfg.output_mode = OUTMODE_MPEG2_FIFO; demod = &st->demod; diff --git a/linux/drivers/media/dvb/frontends/dib7000p.h b/linux/drivers/media/dvb/frontends/dib7000p.h index 07c4d12ed..3e8126857 100644 --- a/linux/drivers/media/dvb/frontends/dib7000p.h +++ b/linux/drivers/media/dvb/frontends/dib7000p.h @@ -41,6 +41,14 @@ struct dib7000p_config { extern struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg); +extern struct i2c_adapter *dib7000p_get_i2c_master(struct dvb_frontend *, + enum dibx000_i2c_interface, + int); +extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, + int no_of_demods, u8 default_addr, + struct dib7000p_config cfg[]); +extern int dib7000p_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val); +extern int dib7000p_set_wbd_ref(struct dvb_frontend *, u16 value); #else static inline struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, @@ -49,13 +57,36 @@ static inline struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } -#endif -extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[]); +static inline +struct i2c_adapter *dib7000p_get_i2c_master(struct dvb_frontend *fe, + enum dibx000_i2c_interface i, int x) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} + +extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, + int no_of_demods, u8 default_addr, + struct dib7000p_config cfg[]) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return -ENODEV; +} + +extern int dib7000p_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return -ENODEV; +} + +extern int dib7000p_set_wbd_ref(struct dvb_frontend *fe, u16 value) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return -ENODEV; +} +#endif -extern struct i2c_adapter * dib7000p_get_i2c_master(struct dvb_frontend *, enum dibx000_i2c_interface, int); extern int dib7000pc_detection(struct i2c_adapter *i2c_adap); -extern int dib7000p_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val); -extern int dib7000p_set_wbd_ref(struct dvb_frontend *, u16 value); #endif diff --git a/linux/drivers/media/dvb/frontends/drx397xD.c b/linux/drivers/media/dvb/frontends/drx397xD.c index 52a9a6553..f1ea891d7 100644 --- a/linux/drivers/media/dvb/frontends/drx397xD.c +++ b/linux/drivers/media/dvb/frontends/drx397xD.c @@ -97,7 +97,7 @@ static void drx_release_fw(struct drx397xD_state *s) { fw_ix_t ix = s->chip_rev; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); write_lock(&fw[ix].lock); if (fw[ix].refcnt) { @@ -114,7 +114,7 @@ static int drx_load_fw(struct drx397xD_state *s, fw_ix_t ix) size_t size, len; int i = 0, j, rc = -EINVAL; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); if (ix < 0 || ix >= ARRAY_SIZE(fw)) return -EINVAL; @@ -198,10 +198,10 @@ static int write_fw(struct drx397xD_state *s, blob_ix_t ix) int len, rc = 0, i = 0; if (ix < 0 || ix >= ARRAY_SIZE(blob_name)) { - pr_debug("%s drx_fw_ix_t out of range\n", __FUNCTION__); + pr_debug("%s drx_fw_ix_t out of range\n", __func__); return -EINVAL; } - pr_debug("%s %s\n", __FUNCTION__, blob_name[ix]); + pr_debug("%s %s\n", __func__, blob_name[ix]); read_lock(&fw[s->chip_rev].lock); data = fw[s->chip_rev].data[ix]; @@ -306,7 +306,7 @@ static int PLL_Set(struct drx397xD_state *s, u32 f_tuner, f = fep->frequency; int rc; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); if ((f > s->frontend.ops.tuner_ops.info.frequency_max) || (f < s->frontend.ops.tuner_ops.info.frequency_min)) @@ -326,7 +326,7 @@ static int PLL_Set(struct drx397xD_state *s, return rc; *df_tuner = f_tuner - f; - pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __FUNCTION__, f, + pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __func__, f, f_tuner); return 0; @@ -341,7 +341,7 @@ static int SC_WaitForReady(struct drx397xD_state *s) int cnt = 1000; int rc; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); while (cnt--) { rc = RD16(s, 0x820043); @@ -355,7 +355,7 @@ static int SC_SendCommand(struct drx397xD_state *s, int cmd) { int rc; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); WR16(s, 0x820043, cmd); SC_WaitForReady(s); @@ -369,7 +369,7 @@ static int HI_Command(struct drx397xD_state *s, u16 cmd) { int rc, cnt = 1000; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); rc = WR16(s, 0x420032, cmd); if (rc < 0) @@ -390,7 +390,7 @@ static int HI_Command(struct drx397xD_state *s, u16 cmd) static int HI_CfgCommand(struct drx397xD_state *s) { - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); WR16(s, 0x420033, 0x3973); WR16(s, 0x420034, s->config.w50); // code 4, log 4 @@ -420,7 +420,7 @@ static int SetCfgIfAgc(struct drx397xD_state *s, struct drx397xD_CfgIfAgc *agc) u16 w0C = agc->w0C; int quot, rem, i, rc = -EINVAL; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); if (agc->w04 > 0x3ff) goto exit_rc; @@ -479,7 +479,7 @@ static int SetCfgRfAgc(struct drx397xD_state *s, struct drx397xD_CfgRfAgc *agc) u16 w06 = agc->w06; int rc = -1; - pr_debug("%s %d 0x%x 0x%x\n", __FUNCTION__, agc->d00, w04, w06); + pr_debug("%s %d 0x%x 0x%x\n", __func__, agc->d00, w04, w06); if (w04 > 0x3ff) goto exit_rc; @@ -555,7 +555,7 @@ static int CorrectSysClockDeviation(struct drx397xD_state *s) int lockstat; u32 clk, clk_limit; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); if (s->config.d5C == 0) { EXIT_RC(WR16(s, 0x08200e8, 0x010)); @@ -599,7 +599,7 @@ static int CorrectSysClockDeviation(struct drx397xD_state *s) if (clk - s->config.f_osc * 1000 + clk_limit <= 2 * clk_limit) { s->f_osc = clk; - pr_debug("%s: osc %d %d [Hz]\n", __FUNCTION__, + pr_debug("%s: osc %d %d [Hz]\n", __func__, s->config.f_osc * 1000, clk - s->config.f_osc * 1000); } rc = WR16(s, 0x08200e8, 0); @@ -611,7 +611,7 @@ static int ConfigureMPEGOutput(struct drx397xD_state *s, int type) { int rc, si, bp; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); si = s->config.wA0; if (s->config.w98 == 0) { @@ -647,7 +647,7 @@ static int drx_tune(struct drx397xD_state *s, int rc, df_tuner; int a, b, c, d; - pr_debug("%s %d\n", __FUNCTION__, s->config.d60); + pr_debug("%s %d\n", __func__, s->config.d60); if (s->config.d60 != 2) goto set_tuner; @@ -1124,7 +1124,7 @@ static int drx397x_init(struct dvb_frontend *fe) struct drx397xD_state *s = fe->demodulator_priv; int rc; - pr_debug("%s\n", __FUNCTION__); + pr_debug("%s\n", __func__); s->config.rfagc.d00 = 2; /* 0x7c */ s->config.rfagc.w04 = 0; diff --git a/linux/drivers/media/dvb/frontends/drx397xD.h b/linux/drivers/media/dvb/frontends/drx397xD.h index ddc7a0797..2ad1ea0cc 100644 --- a/linux/drivers/media/dvb/frontends/drx397xD.h +++ b/linux/drivers/media/dvb/frontends/drx397xD.h @@ -122,7 +122,7 @@ extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config, struct i2c_adapter *i2c) { - printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif /* CONFIG_DVB_DRX397XD */ diff --git a/linux/drivers/media/dvb/frontends/lgs8gl5.c b/linux/drivers/media/dvb/frontends/lgs8gl5.c new file mode 100644 index 000000000..380ae1868 --- /dev/null +++ b/linux/drivers/media/dvb/frontends/lgs8gl5.c @@ -0,0 +1,478 @@ +/* + Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver + + Copyright (C) 2008 Sirius International (Hong Kong) Limited + Timothy Lee <timothy.lee@siriushk.com> + + 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 "dvb_frontend.h" +#include "lgs8gl5.h" + + +#define REG_RESET 0x02 +#define REG_RESET_OFF 0x01 +#define REG_03 0x03 +#define REG_04 0x04 +#define REG_07 0x07 +#define REG_09 0x09 +#define REG_0A 0x0a +#define REG_0B 0x0b +#define REG_0C 0x0c +#define REG_37 0x37 +#define REG_STRENGTH 0x4b +#define REG_STRENGTH_MASK 0x7f +#define REG_STRENGTH_CARRIER 0x80 +#define REG_INVERSION 0x7c +#define REG_INVERSION_ON 0x80 +#define REG_7D 0x7d +#define REG_7E 0x7e +#define REG_A2 0xa2 +#define REG_STATUS 0xa4 +#define REG_STATUS_SYNC 0x04 +#define REG_STATUS_LOCK 0x01 + + +struct lgs8gl5_state { + struct i2c_adapter *i2c; + const struct lgs8gl5_config *config; + struct dvb_frontend frontend; +}; + + +static int debug; +#define dprintk(args...) \ + do { \ + if (debug) \ + printk(KERN_DEBUG "lgs8gl5: " args); \ + } while (0) + + +/* Writes into demod's register */ +static int +lgs8gl5_write_reg(struct lgs8gl5_state *state, u8 reg, u8 data) +{ + int ret; + u8 buf[] = {reg, data}; + struct i2c_msg msg = { + .addr = state->config->demod_address, + .flags = 0, + .buf = buf, + .len = 2 + }; + + ret = i2c_transfer(state->i2c, &msg, 1); + if (ret != 1) + dprintk("%s: error (reg=0x%02x, val=0x%02x, ret=%i)\n", + __func__, reg, data, ret); + return (ret != 1) ? -1 : 0; +} + + +/* Reads from demod's register */ +static int +lgs8gl5_read_reg(struct lgs8gl5_state *state, u8 reg) +{ + int ret; + u8 b0[] = {reg}; + u8 b1[] = {0}; + struct i2c_msg msg[2] = { + { + .addr = state->config->demod_address, + .flags = 0, + .buf = b0, + .len = 1 + }, + { + .addr = state->config->demod_address, + .flags = I2C_M_RD, + .buf = b1, + .len = 1 + } + }; + + ret = i2c_transfer(state->i2c, msg, 2); + if (ret != 2) + return -EIO; + + return b1[0]; +} + + +static int +lgs8gl5_update_reg(struct lgs8gl5_state *state, u8 reg, u8 data) +{ + lgs8gl5_read_reg(state, reg); + lgs8gl5_write_reg(state, reg, data); + return 0; +} + + +/* Writes into alternate device's register */ +/* TODO: Find out what that device is for! */ +static int +lgs8gl5_update_alt_reg(struct lgs8gl5_state *state, u8 reg, u8 data) +{ + int ret; + u8 b0[] = {reg}; + u8 b1[] = {0}; + u8 b2[] = {reg, data}; + struct i2c_msg msg[3] = { + { + .addr = state->config->demod_address + 2, + .flags = 0, + .buf = b0, + .len = 1 + }, + { + .addr = state->config->demod_address + 2, + .flags = I2C_M_RD, + .buf = b1, + .len = 1 + }, + { + .addr = state->config->demod_address + 2, + .flags = 0, + .buf = b2, + .len = 2 + }, + }; + + ret = i2c_transfer(state->i2c, msg, 3); + return (ret != 3) ? -1 : 0; +} + + +static void +lgs8gl5_soft_reset(struct lgs8gl5_state *state) +{ + u8 val; + + dprintk("%s\n", __func__); + + val = lgs8gl5_read_reg(state, REG_RESET); + lgs8gl5_write_reg(state, REG_RESET, val & ~REG_RESET_OFF); + lgs8gl5_write_reg(state, REG_RESET, val | REG_RESET_OFF); + msleep(5); +} + +#if 0 +static int +lgs8gl5_set_inversion(struct lgs8gl5_state *state, int inversion) +{ + u8 val; + + dprintk("%s\n", __func__); + + switch (inversion) { + case INVERSION_AUTO: + return -EOPNOTSUPP; + case INVERSION_ON: + val = lgs8gl5_read_reg(state, REG_INVERSION); + return lgs8gl5_write_reg(state, REG_INVERSION, + val | REG_INVERSION_ON); + case INVERSION_OFF: + val = lgs8gl5_read_reg(state, REG_INVERSION); + return lgs8gl5_write_reg(state, REG_INVERSION, + val & ~REG_INVERSION_ON); + default: + return -EINVAL; + } +} +#endif + +/* Starts demodulation */ +static void +lgs8gl5_start_demod(struct lgs8gl5_state *state) +{ + u8 val; + int n; + + dprintk("%s\n", __func__); + + lgs8gl5_update_alt_reg(state, 0xc2, 0x28); + lgs8gl5_soft_reset(state); + lgs8gl5_update_reg(state, REG_07, 0x10); + lgs8gl5_update_reg(state, REG_07, 0x10); + lgs8gl5_write_reg(state, REG_09, 0x0e); + lgs8gl5_write_reg(state, REG_0A, 0xe5); + lgs8gl5_write_reg(state, REG_0B, 0x35); + lgs8gl5_write_reg(state, REG_0C, 0x30); + + lgs8gl5_update_reg(state, REG_03, 0x00); + lgs8gl5_update_reg(state, REG_7E, 0x01); + lgs8gl5_update_alt_reg(state, 0xc5, 0x00); + lgs8gl5_update_reg(state, REG_04, 0x02); + lgs8gl5_update_reg(state, REG_37, 0x01); + lgs8gl5_soft_reset(state); + + /* Wait for carrier */ + for (n = 0; n < 10; n++) { + val = lgs8gl5_read_reg(state, REG_STRENGTH); + dprintk("Wait for carrier[%d] 0x%02X\n", n, val); + if (val & REG_STRENGTH_CARRIER) + break; + msleep(4); + } + if (!(val & REG_STRENGTH_CARRIER)) + return; + + /* Wait for lock */ + for (n = 0; n < 20; n++) { + val = lgs8gl5_read_reg(state, REG_STATUS); + dprintk("Wait for lock[%d] 0x%02X\n", n, val); + if (val & REG_STATUS_LOCK) + break; + msleep(12); + } + if (!(val & REG_STATUS_LOCK)) + return; + + lgs8gl5_write_reg(state, REG_7D, lgs8gl5_read_reg(state, REG_A2)); + lgs8gl5_soft_reset(state); +} + + +static int +lgs8gl5_init(struct dvb_frontend *fe) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + + dprintk("%s\n", __func__); + + lgs8gl5_update_alt_reg(state, 0xc2, 0x28); + lgs8gl5_soft_reset(state); + lgs8gl5_update_reg(state, REG_07, 0x10); + lgs8gl5_update_reg(state, REG_07, 0x10); + lgs8gl5_write_reg(state, REG_09, 0x0e); + lgs8gl5_write_reg(state, REG_0A, 0xe5); + lgs8gl5_write_reg(state, REG_0B, 0x35); + lgs8gl5_write_reg(state, REG_0C, 0x30); + + return 0; +} + + +static int +lgs8gl5_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + u8 level = lgs8gl5_read_reg(state, REG_STRENGTH); + u8 flags = lgs8gl5_read_reg(state, REG_STATUS); + + *status = 0; + + if ((level & REG_STRENGTH_MASK) > 0) + *status |= FE_HAS_SIGNAL; + if (level & REG_STRENGTH_CARRIER) + *status |= FE_HAS_CARRIER; + if (flags & REG_STATUS_SYNC) + *status |= FE_HAS_SYNC; + if (flags & REG_STATUS_LOCK) + *status |= FE_HAS_LOCK; + + return 0; +} + + +static int +lgs8gl5_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + *ber = 0; + + return 0; +} + + +static int +lgs8gl5_read_signal_strength(struct dvb_frontend *fe, u16 *signal_strength) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + u8 level = lgs8gl5_read_reg(state, REG_STRENGTH); + *signal_strength = (level & REG_STRENGTH_MASK) << 8; + + return 0; +} + + +static int +lgs8gl5_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + u8 level = lgs8gl5_read_reg(state, REG_STRENGTH); + *snr = (level & REG_STRENGTH_MASK) << 8; + + return 0; +} + + +static int +lgs8gl5_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + + return 0; +} + + +static int +lgs8gl5_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + + dprintk("%s\n", __func__); + + if (p->u.ofdm.bandwidth != BANDWIDTH_8_MHZ) + return -EINVAL; + + if (fe->ops.tuner_ops.set_params) { + fe->ops.tuner_ops.set_params(fe, p); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + } + + /* lgs8gl5_set_inversion(state, p->inversion); */ + + lgs8gl5_start_demod(state); + + return 0; +} + + +static int +lgs8gl5_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + u8 inv = lgs8gl5_read_reg(state, REG_INVERSION); + struct dvb_ofdm_parameters *o = &p->u.ofdm; + + p->inversion = (inv & REG_INVERSION_ON) ? INVERSION_ON : INVERSION_OFF; + + o->code_rate_HP = FEC_1_2; + o->code_rate_LP = FEC_7_8; + o->guard_interval = GUARD_INTERVAL_1_32; + o->transmission_mode = TRANSMISSION_MODE_2K; + o->constellation = QAM_64; + o->hierarchy_information = HIERARCHY_NONE; + o->bandwidth = BANDWIDTH_8_MHZ; + + return 0; +} + + +static int +lgs8gl5_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *fesettings) +{ + fesettings->min_delay_ms = 240; + fesettings->step_size = 0; + fesettings->max_drift = 0; + return 0; +} + + +static void +lgs8gl5_release(struct dvb_frontend *fe) +{ + struct lgs8gl5_state *state = fe->demodulator_priv; + kfree(state); +} + + +static struct dvb_frontend_ops lgs8gl5_ops; + + +struct dvb_frontend* +lgs8gl5_attach(const struct lgs8gl5_config *config, struct i2c_adapter *i2c) +{ + struct lgs8gl5_state *state = NULL; + + dprintk("%s\n", __func__); + + /* Allocate memory for the internal state */ + state = kmalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL); + if (state == NULL) + goto error; + + /* Setup the state */ + state->config = config; + state->i2c = i2c; + + /* Check if the demod is there */ + if (lgs8gl5_read_reg(state, REG_RESET) < 0) + goto error; + + /* Create dvb_frontend */ + memcpy(&state->frontend.ops, &lgs8gl5_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; + +error: + kfree(state); + return NULL; +} +EXPORT_SYMBOL(lgs8gl5_attach); + + +static struct dvb_frontend_ops lgs8gl5_ops = { + .info = { + .name = "Legend Silicon LGS-8GL5 DMB-TH", + .type = FE_OFDM, + .frequency_min = 474000000, + .frequency_max = 858000000, + .frequency_stepsize = 10000, + .frequency_tolerance = 0, + .caps = FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 | + FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_BANDWIDTH_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_RECOVER + }, + + .release = lgs8gl5_release, + + .init = lgs8gl5_init, + + .set_frontend = lgs8gl5_set_frontend, + .get_frontend = lgs8gl5_get_frontend, + .get_tune_settings = lgs8gl5_get_tune_settings, + + .read_status = lgs8gl5_read_status, + .read_ber = lgs8gl5_read_ber, + .read_signal_strength = lgs8gl5_read_signal_strength, + .read_snr = lgs8gl5_read_snr, + .read_ucblocks = lgs8gl5_read_ucblocks, +}; + + +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); + +MODULE_DESCRIPTION("Legend Silicon LGS-8GL5 DMB-TH Demodulator driver"); +MODULE_AUTHOR("Timothy Lee"); +MODULE_LICENSE("GPL"); diff --git a/linux/drivers/media/dvb/frontends/lgs8gl5.h b/linux/drivers/media/dvb/frontends/lgs8gl5.h new file mode 100644 index 000000000..d14176787 --- /dev/null +++ b/linux/drivers/media/dvb/frontends/lgs8gl5.h @@ -0,0 +1,45 @@ +/* + Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver + + Copyright (C) 2008 Sirius International (Hong Kong) Limited + Timothy Lee <timothy.lee@siriushk.com> + + 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. + +*/ + +#ifndef LGS8GL5_H +#define LGS8GL5_H + +#include <linux/dvb/frontend.h> + +struct lgs8gl5_config { + /* the demodulator's i2c address */ + u8 demod_address; +}; + +#if defined(CONFIG_DVB_LGS8GL5) || \ + (defined(CONFIG_DVB_LGS8GL5_MODULE) && defined(MODULE)) +extern struct dvb_frontend *lgs8gl5_attach( + const struct lgs8gl5_config *config, struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *lgs8gl5_attach( + const struct lgs8gl5_config *config, struct i2c_adapter *i2c) { + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_LGS8GL5 */ + +#endif /* LGS8GL5_H */ |