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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[media] mt2063: simplify lockstatus logic
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab
parent
66aea30d32
commit
31e67faeaf
@ -8,13 +8,7 @@
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static unsigned int verbose;
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module_param(verbose, int, 0644);
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/* Internal structures and types */
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/* FIXME: Those two error codes need conversion*/
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/* Error: Upconverter PLL is not locked */
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#define MT2063_UPC_UNLOCK (0x80000002)
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/* Error: Downconverter PLL is not locked */
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#define MT2063_DNC_UNLOCK (0x80000004)
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/* positive error codes used internally */
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/* Info: Unavoidable LO-related spur may be present in the output */
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#define MT2063_SPUR_PRESENT_ERR (0x00800000)
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@ -29,10 +23,6 @@ module_param(verbose, int, 0644);
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/* Info: Downconverter frequency is out of range (may be reason for MT_DPC_UNLOCK) */
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#define MT2063_DNC_RANGE (0x08000000)
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/*
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* Data Types
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*/
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/*
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* Constant defining the version of the following structure
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* and therefore the API for this code.
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@ -362,29 +352,6 @@ unsigned int mt2063_setTune(struct dvb_frontend *fe, u32 f_in,
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return err;
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}
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unsigned int mt2063_lockStatus(struct dvb_frontend *fe)
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{
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struct dvb_frontend_ops *frontend_ops = &fe->ops;
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
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struct tuner_state t_state;
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int err = 0;
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if (&fe->ops)
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frontend_ops = &fe->ops;
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if (&frontend_ops->tuner_ops)
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tuner_ops = &frontend_ops->tuner_ops;
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if (tuner_ops->get_state) {
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if ((err =
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tuner_ops->get_state(fe, DVBFE_TUNER_REFCLOCK,
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&t_state)) < 0) {
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printk("%s: Invalid parameter\n", __func__);
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return err;
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}
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}
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return err;
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}
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unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe)
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{
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struct mt2063_state *state = fe->tuner_priv;
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@ -1193,39 +1160,21 @@ static u32 MT2063_CalcLO2Mult(u32 * Div, u32 * FracN, u32 f_LO,
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static u32 MT2063_fLO_FractionalTerm(u32 f_ref, u32 num,
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u32 denom);
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/****************************************************************************
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**
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** Name: MT2063_GetLocked
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**
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** Description: Checks to see if LO1 and LO2 are locked.
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**
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** Parameters: h - Open handle to the tuner (from MT2063_Open).
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**
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** Returns: status:
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** MT_OK - No errors
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** MT_UPC_UNLOCK - Upconverter PLL unlocked
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** MT_DNC_UNLOCK - Downconverter PLL unlocked
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** MT_COMM_ERR - Serial bus communications error
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** MT_INV_HANDLE - Invalid tuner handle
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**
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** Dependencies: MT_ReadSub - Read byte(s) of data from the serial bus
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** MT_Sleep - Delay execution for x milliseconds
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**
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** Revision History:
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**
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** SCR Date Author Description
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** -------------------------------------------------------------------------
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** 138 06-19-2007 DAD Ver 1.00: Initial, derived from mt2067_b.
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**
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****************************************************************************/
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static u32 MT2063_GetLocked(struct mt2063_state *state)
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/**
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* mt2063_lockStatus - Checks to see if LO1 and LO2 are locked
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*
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* @state: struct mt2063_state pointer
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*
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* This function returns 0, if no lock, 1 if locked and a value < 1 if error
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*/
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unsigned int mt2063_lockStatus(struct mt2063_state *state)
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{
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const u32 nMaxWait = 100; /* wait a maximum of 100 msec */
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const u32 nPollRate = 2; /* poll status bits every 2 ms */
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const u32 nMaxLoops = nMaxWait / nPollRate;
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const u8 LO1LK = 0x80;
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u8 LO2LK = 0x08;
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u32 status = 0; /* Status to be returned */
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u32 status;
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u32 nDelays = 0;
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/* LO2 Lock bit was in a different place for B0 version */
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@ -1233,28 +1182,24 @@ static u32 MT2063_GetLocked(struct mt2063_state *state)
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LO2LK = 0x40;
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do {
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status |=
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mt2063_read(state,
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MT2063_REG_LO_STATUS,
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&state->reg[MT2063_REG_LO_STATUS], 1);
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status = mt2063_read(state, MT2063_REG_LO_STATUS,
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&state->reg[MT2063_REG_LO_STATUS], 1);
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if (status < 0)
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return (status);
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return status;
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if ((state->reg[MT2063_REG_LO_STATUS] & (LO1LK | LO2LK)) ==
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(LO1LK | LO2LK)) {
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return (status);
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return TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO;
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}
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msleep(nPollRate); /* Wait between retries */
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}
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while (++nDelays < nMaxLoops);
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if ((state->reg[MT2063_REG_LO_STATUS] & LO1LK) == 0x00)
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status |= MT2063_UPC_UNLOCK;
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if ((state->reg[MT2063_REG_LO_STATUS] & LO2LK) == 0x00)
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status |= MT2063_DNC_UNLOCK;
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return (status);
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/*
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* Got no lock or partial lock
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*/
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return 0;
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}
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/****************************************************************************
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@ -2424,15 +2369,14 @@ static u32 MT2063_ClearPowerMaskBits(struct mt2063_state *state, enum MT2063_Mas
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****************************************************************************/
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static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown)
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{
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u32 status = 0; /* Status to be returned */
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u32 status; /* Status to be returned */
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if (Shutdown == 1)
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state->reg[MT2063_REG_PWR_1] |= 0x04; /* Turn the bit on */
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else
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state->reg[MT2063_REG_PWR_1] &= ~0x04; /* Turn off the bit */
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status |=
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mt2063_write(state,
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status = mt2063_write(state,
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MT2063_REG_PWR_1,
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&state->reg[MT2063_REG_PWR_1], 1);
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@ -2453,7 +2397,7 @@ static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown)
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1);
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}
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return (status);
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return status;
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}
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/****************************************************************************
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@ -2486,17 +2430,18 @@ static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown)
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****************************************************************************/
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static u32 MT2063_SetReg(struct mt2063_state *state, u8 reg, u8 val)
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{
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u32 status = 0; /* Status to be returned */
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u32 status;
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if (reg >= MT2063_REG_END_REGS)
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status |= -ERANGE;
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return -ERANGE;
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status = mt2063_write(state, reg, &val,
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1);
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if (status >= 0)
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state->reg[reg] = val;
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status = mt2063_write(state, reg, &val, 1);
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if (status < 0)
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return status;
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return (status);
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state->reg[reg] = val;
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return 0;
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}
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static u32 MT2063_Round_fLO(u32 f_LO, u32 f_LO_Step, u32 f_ref)
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@ -2670,7 +2615,7 @@ static u32 FindClearTuneFilter(struct mt2063_state *state, u32 f_in)
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break;
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}
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}
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return (RFBand);
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return RFBand;
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}
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/****************************************************************************
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@ -2899,18 +2844,22 @@ static u32 MT2063_Tune(struct mt2063_state *state, u32 f_in)
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** Check for LO's locking
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*/
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if (status >= 0) {
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status |= MT2063_GetLocked(state);
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}
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if (status < 0)
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return status;
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status = mt2063_lockStatus(state);
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if (status < 0)
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return status;
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if (!status)
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return -EINVAL; /* Couldn't lock */
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/*
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** If we locked OK, assign calculated data to mt2063_state structure
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* If we locked OK, assign calculated data to mt2063_state structure
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*/
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if (status >= 0) {
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state->f_IF1_actual = state->AS_Data.f_LO1 - f_in;
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}
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state->f_IF1_actual = state->AS_Data.f_LO1 - f_in;
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}
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return (status);
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return status;
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}
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static u32 MT_Tune_atv(void *h, u32 f_in, u32 bw_in,
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@ -3321,7 +3270,7 @@ static int mt2063_get_state(struct dvb_frontend *fe,
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//get bandwidth
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break;
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case DVBFE_TUNER_REFCLOCK:
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tunstate->refclock = (u32) MT2063_GetLocked(state);
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tunstate->refclock = mt2063_lockStatus(state);
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break;
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default:
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break;
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