diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/s626.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/s626.c | 287 |
1 files changed, 2 insertions, 285 deletions
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 4a87b4b52400..c14a02564432 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -697,134 +697,6 @@ static void s626_reset_cap_flags(struct comedi_device *dev, s626_debi_replace(dev, S626_LP_CRB(chan), ~S626_CRBMSK_INTCTRL, set); } -#ifdef unused -/* - * Return counter setup in a format (COUNTER_SETUP) that is consistent - * for both A and B counters. - */ -static uint16_t s626_get_mode_a(struct comedi_device *dev, - unsigned int chan) -{ - uint16_t cra; - uint16_t crb; - uint16_t setup; - unsigned int cntsrc, clkmult, clkpol, encmode; - - /* Fetch CRA and CRB register images. */ - cra = s626_debi_read(dev, S626_LP_CRA(chan)); - crb = s626_debi_read(dev, S626_LP_CRB(chan)); - - /* - * Populate the standardized counter setup bit fields. - */ - setup = - /* LoadSrc = LoadSrcA. */ - S626_SET_STD_LOADSRC(S626_GET_CRA_LOADSRC_A(cra)) | - /* LatchSrc = LatchSrcA. */ - S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) | - /* IntSrc = IntSrcA. */ - S626_SET_STD_INTSRC(S626_GET_CRA_INTSRC_A(cra)) | - /* IndxSrc = IndxSrcA. */ - S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_A(cra)) | - /* IndxPol = IndxPolA. */ - S626_SET_STD_INDXPOL(S626_GET_CRA_INDXPOL_A(cra)) | - /* ClkEnab = ClkEnabA. */ - S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_A(crb)); - - /* Adjust mode-dependent parameters. */ - cntsrc = S626_GET_CRA_CNTSRC_A(cra); - if (cntsrc & S626_CNTSRC_SYSCLK) { - /* Timer mode (CntSrcA<1> == 1): */ - encmode = S626_ENCMODE_TIMER; - /* Set ClkPol to indicate count direction (CntSrcA<0>). */ - clkpol = cntsrc & 1; - /* ClkMult must be 1x in Timer mode. */ - clkmult = S626_CLKMULT_1X; - } else { - /* Counter mode (CntSrcA<1> == 0): */ - encmode = S626_ENCMODE_COUNTER; - /* Pass through ClkPol. */ - clkpol = S626_GET_CRA_CLKPOL_A(cra); - /* Force ClkMult to 1x if not legal, else pass through. */ - clkmult = S626_GET_CRA_CLKMULT_A(cra); - if (clkmult == S626_CLKMULT_SPECIAL) - clkmult = S626_CLKMULT_1X; - } - setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) | - S626_SET_STD_CLKPOL(clkpol); - - /* Return adjusted counter setup. */ - return setup; -} - -static uint16_t s626_get_mode_b(struct comedi_device *dev, - unsigned int chan) -{ - uint16_t cra; - uint16_t crb; - uint16_t setup; - unsigned int cntsrc, clkmult, clkpol, encmode; - - /* Fetch CRA and CRB register images. */ - cra = s626_debi_read(dev, S626_LP_CRA(chan)); - crb = s626_debi_read(dev, S626_LP_CRB(chan)); - - /* - * Populate the standardized counter setup bit fields. - */ - setup = - /* IntSrc = IntSrcB. */ - S626_SET_STD_INTSRC(S626_GET_CRB_INTSRC_B(crb)) | - /* LatchSrc = LatchSrcB. */ - S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) | - /* LoadSrc = LoadSrcB. */ - S626_SET_STD_LOADSRC(S626_GET_CRB_LOADSRC_B(crb)) | - /* IndxPol = IndxPolB. */ - S626_SET_STD_INDXPOL(S626_GET_CRB_INDXPOL_B(crb)) | - /* ClkEnab = ClkEnabB. */ - S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_B(crb)) | - /* IndxSrc = IndxSrcB. */ - S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_B(cra)); - - /* Adjust mode-dependent parameters. */ - cntsrc = S626_GET_CRA_CNTSRC_B(cra); - clkmult = S626_GET_CRB_CLKMULT_B(crb); - if (clkmult == S626_CLKMULT_SPECIAL) { - /* Extender mode (ClkMultB == S626_CLKMULT_SPECIAL): */ - encmode = S626_ENCMODE_EXTENDER; - /* Indicate multiplier is 1x. */ - clkmult = S626_CLKMULT_1X; - /* Set ClkPol equal to Timer count direction (CntSrcB<0>). */ - clkpol = cntsrc & 1; - } else if (cntsrc & S626_CNTSRC_SYSCLK) { - /* Timer mode (CntSrcB<1> == 1): */ - encmode = S626_ENCMODE_TIMER; - /* Indicate multiplier is 1x. */ - clkmult = S626_CLKMULT_1X; - /* Set ClkPol equal to Timer count direction (CntSrcB<0>). */ - clkpol = cntsrc & 1; - } else { - /* If Counter mode (CntSrcB<1> == 0): */ - encmode = S626_ENCMODE_COUNTER; - /* Clock multiplier is passed through. */ - /* Clock polarity is passed through. */ - clkpol = S626_GET_CRB_CLKPOL_B(crb); - } - setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) | - S626_SET_STD_CLKPOL(clkpol); - - /* Return adjusted counter setup. */ - return setup; -} - -static uint16_t s626_get_mode(struct comedi_device *dev, - unsigned int chan) -{ - return (chan < 3) ? s626_get_mode_a(dev, chan) - : s626_get_mode_b(dev, chan); -} -#endif - /* * Set the operating mode for the specified counter. The setup * parameter is treated as a COUNTER_SETUP data type. The following @@ -1023,25 +895,6 @@ static void s626_set_enable(struct comedi_device *dev, s626_debi_replace(dev, S626_LP_CRB(chan), ~mask, set); } -#ifdef unused -static uint16_t s626_get_enable(struct comedi_device *dev, - unsigned int chan) -{ - uint16_t crb = s626_debi_read(dev, S626_LP_CRB(chan)); - - return (chan < 3) ? S626_GET_CRB_CLKENAB_A(crb) - : S626_GET_CRB_CLKENAB_B(crb); -} -#endif - -#ifdef unused -static uint16_t s626_get_latch_source(struct comedi_device *dev, - unsigned int chan) -{ - return S626_GET_CRB_LATCHSRC(s626_debi_read(dev, S626_LP_CRB(chan))); -} -#endif - /* * Return/set the event that will trigger transfer of the preload * register into the counter. 0=ThisCntr_Index, 1=ThisCntr_Overflow, @@ -1066,19 +919,6 @@ static void s626_set_load_trig(struct comedi_device *dev, s626_debi_replace(dev, reg, ~mask, set); } -#ifdef unused -static uint16_t s626_get_load_trig(struct comedi_device *dev, - unsigned int chan) -{ - if (chan < 3) - return S626_GET_CRA_LOADSRC_A(s626_debi_read(dev, - S626_LP_CRA(chan))); - else - return S626_GET_CRB_LOADSRC_B(s626_debi_read(dev, - S626_LP_CRB(chan))); -} -#endif - /* * Return/set counter interrupt source and clear any captured * index/overflow events. int_source: 0=Disabled, 1=OverflowOnly, @@ -1138,93 +978,6 @@ static void s626_set_int_src(struct comedi_device *dev, } } -#ifdef unused -static uint16_t s626_get_int_src(struct comedi_device *dev, - unsigned int chan) -{ - if (chan < 3) - return S626_GET_CRA_INTSRC_A(s626_debi_read(dev, - S626_LP_CRA(chan))); - else - return S626_GET_CRB_INTSRC_B(s626_debi_read(dev, - S626_LP_CRB(chan))); -} -#endif - -#ifdef unused -/* - * Return/set the clock multiplier. - */ -static void s626_set_clk_mult(struct comedi_device *dev, - unsigned int chan, uint16_t value) -{ - uint16_t mode; - - mode = s626_get_mode(dev, chan); - mode &= ~S626_STDMSK_CLKMULT; - mode |= S626_SET_STD_CLKMULT(value); - - s626_set_mode(dev, chan, mode, false); -} - -/* - * Return/set the clock polarity. - */ -static void s626_set_clk_pol(struct comedi_device *dev, - unsigned int chan, uint16_t value) -{ - uint16_t mode; - - mode = s626_get_mode(dev, chan); - mode &= ~S626_STDMSK_CLKPOL; - mode |= S626_SET_STD_CLKPOL(value); - - s626_set_mode(dev, chan, mode, false); -} - -/* - * Return/set the encoder mode. - */ -static void s626_set_enc_mode(struct comedi_device *dev, - unsigned int chan, uint16_t value) -{ - uint16_t mode; - - mode = s626_get_mode(dev, chan); - mode &= ~S626_STDMSK_ENCMODE; - mode |= S626_SET_STD_ENCMODE(value); - - s626_set_mode(dev, chan, mode, false); -} - -static uint16_t s626_get_index_pol(struct comedi_device *dev, - unsigned int chan) -{ - return S626_GET_STD_INDXPOL(s626_get_mode(dev, chan)); -} - -/* - * Return/set the index source. - */ -static void s626_set_index_src(struct comedi_device *dev, - unsigned int chan, uint16_t value) -{ - uint16_t mode; - - mode = s626_get_mode(dev, chan); - mode &= ~S626_STDMSK_INDXSRC; - mode |= S626_SET_STD_INDXSRC(value != 0); - - s626_set_mode(dev, chan, mode, false); -} - -static uint16_t s626_get_index_src(struct comedi_device *dev, - unsigned int chan) -{ - return S626_GET_STD_INDXSRC(s626_get_mode(dev, chan)); -} -#endif - /* * Generate an index pulse. */ @@ -1717,43 +1470,6 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl) /* End of RPS program build */ } -#ifdef unused_code -static int s626_ai_rinsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct s626_private *devpriv = dev->private; - uint8_t i; - int32_t *readaddr; - - /* Trigger ADC scan loop start */ - s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2); - - /* Wait until ADC scan loop is finished (RPS Signal 0 reset) */ - while (s626_mc_test(dev, S626_MC2_ADC_RPS, S626_P_MC2)) - ; - - /* - * Init ptr to DMA buffer that holds new ADC data. We skip the - * first uint16_t in the buffer because it contains junk data from - * the final ADC of the previous poll list scan. - */ - readaddr = (uint32_t *)devpriv->ana_buf.logical_base + 1; - - /* - * Convert ADC data to 16-bit integer values and - * copy to application buffer. - */ - for (i = 0; i < devpriv->adc_items; i++) { - *data = s626_ai_reg_to_uint(*readaddr++); - data++; - } - - return i; -} -#endif - static int s626_ai_eoc(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, @@ -2500,7 +2216,8 @@ static int s626_initialize(struct comedi_device *dev) for (i = 0; i < 2; i++) { writel(S626_I2C_CLKSEL, dev->mmio + S626_P_I2CSTAT); s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2); - ret = comedi_timeout(dev, NULL, NULL, s626_i2c_handshake_eoc, 0); + ret = comedi_timeout(dev, NULL, + NULL, s626_i2c_handshake_eoc, 0); if (ret) return ret; } |