#include "dib3000-common.h" #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 #define deb_info(args...) dprintk(0x01,args) #define deb_i2c(args...) dprintk(0x02,args) #define deb_srch(args...) dprintk(0x04,args) 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]; } 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; } 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 */ 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 } */ } }; MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de"); MODULE_DESCRIPTION("Common functions for the dib3000mb/dib3000mc dvb frontend drivers"); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(dib3000_seq); EXPORT_SYMBOL(dib3000_read_reg); EXPORT_SYMBOL(dib3000_write_reg); EXPORT_SYMBOL(dib3000_search_status);