diff options
Diffstat (limited to 'drivers/media/dvb/frontends/dib3000mb.c')
| -rw-r--r-- | drivers/media/dvb/frontends/dib3000mb.c | 76 |
1 files changed, 74 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c index 5302e11883a..adbabfdb04a 100644 --- a/drivers/media/dvb/frontends/dib3000mb.c +++ b/drivers/media/dvb/frontends/dib3000mb.c @@ -29,9 +29,10 @@ #include <linux/string.h> #include <linux/slab.h> -#include "dib3000-common.h" -#include "dib3000mb_priv.h" +#include "dvb_frontend.h" + #include "dib3000.h" +#include "dib3000mb_priv.h" /* Version information */ #define DRIVER_VERSION "0.1" @@ -44,10 +45,81 @@ module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able))."); #endif #define deb_info(args...) dprintk(0x01,args) +#define deb_i2c(args...) dprintk(0x02,args) +#define deb_srch(args...) dprintk(0x04,args) +#define deb_info(args...) dprintk(0x01,args) #define deb_xfer(args...) dprintk(0x02,args) #define deb_setf(args...) dprintk(0x04,args) #define deb_getf(args...) dprintk(0x08,args) +#ifdef CONFIG_DVB_DIBCOM_DEBUG +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level (1=info,2=i2c,4=srch (|-able))."); +#endif + +static int dib3000_read_reg(struct dib3000_state *state, u16 reg) +{ + u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff }; + u8 rb[2]; + struct i2c_msg msg[] = { + { .addr = state->config.demod_address, .flags = 0, .buf = wb, .len = 2 }, + { .addr = state->config.demod_address, .flags = I2C_M_RD, .buf = rb, .len = 2 }, + }; + + if (i2c_transfer(state->i2c, msg, 2) != 2) + deb_i2c("i2c read error\n"); + + deb_i2c("reading i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg, + (rb[0] << 8) | rb[1],(rb[0] << 8) | rb[1]); + + return (rb[0] << 8) | rb[1]; +} + +static int dib3000_write_reg(struct dib3000_state *state, u16 reg, u16 val) +{ + u8 b[] = { + (reg >> 8) & 0xff, reg & 0xff, + (val >> 8) & 0xff, val & 0xff, + }; + struct i2c_msg msg[] = { + { .addr = state->config.demod_address, .flags = 0, .buf = b, .len = 4 } + }; + deb_i2c("writing i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg,val,val); + + return i2c_transfer(state->i2c,msg, 1) != 1 ? -EREMOTEIO : 0; +} + +static int dib3000_search_status(u16 irq,u16 lock) +{ + if (irq & 0x02) { + if (lock & 0x01) { + deb_srch("auto search succeeded\n"); + return 1; // auto search succeeded + } else { + deb_srch("auto search not successful\n"); + return 0; // auto search failed + } + } else if (irq & 0x01) { + deb_srch("auto search failed\n"); + return 0; // auto search failed + } + return -1; // try again +} + +/* for auto search */ +static u16 dib3000_seq[2][2][2] = /* fft,gua, inv */ + { /* fft */ + { /* gua */ + { 0, 1 }, /* 0 0 { 0,1 } */ + { 3, 9 }, /* 0 1 { 0,1 } */ + }, + { + { 2, 5 }, /* 1 0 { 0,1 } */ + { 6, 11 }, /* 1 1 { 0,1 } */ + } + }; + static int dib3000mb_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep); |