From db6587bfd251384ff96c8891ded9a07c849daf00 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 22 Jul 2011 16:54:05 -0300 Subject: [PATCH] [media] mt2063: Add some debug printk's Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/mt2063.c | 76 +++++++++++++++++++++++++--- 1 file changed, 68 insertions(+), 8 deletions(-) diff --git a/drivers/media/common/tuners/mt2063.c b/drivers/media/common/tuners/mt2063.c index 75cb1d2ccdbc..cd67417dc4cd 100644 --- a/drivers/media/common/tuners/mt2063.c +++ b/drivers/media/common/tuners/mt2063.c @@ -27,8 +27,15 @@ #include "mt2063.h" -static unsigned int verbose; -module_param(verbose, int, 0644); +static unsigned int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Set Verbosity level"); + +#define dprintk(level, fmt, arg...) do { \ +if (debug >= level) \ + printk(KERN_DEBUG "mt2063 %s: " fmt, __func__, ## arg); \ +} while (0) + /* positive error codes used internally */ @@ -248,6 +255,8 @@ static u32 mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len) .len = len + 1 }; + dprintk(2, "\n"); + msg.buf[0] = reg; memcpy(msg.buf + 1, data, len); @@ -270,6 +279,8 @@ static u32 mt2063_setreg(struct mt2063_state *state, u8 reg, u8 val) { u32 status; + dprintk(2, "\n"); + if (reg >= MT2063_REG_END_REGS) return -ERANGE; @@ -292,6 +303,8 @@ static u32 mt2063_read(struct mt2063_state *state, struct dvb_frontend *fe = state->frontend; u32 i = 0; + dprintk(2, "\n"); + if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); @@ -353,6 +366,9 @@ static struct MT2063_ExclZone_t *InsertNode(struct MT2063_AvoidSpursData_t struct MT2063_ExclZone_t *pPrevNode) { struct MT2063_ExclZone_t *pNode; + + dprintk(2, "\n"); + /* Check for a node in the free list */ if (pAS_Info->freeZones != NULL) { /* Use one from the free list */ @@ -384,6 +400,8 @@ static struct MT2063_ExclZone_t *RemoveNode(struct MT2063_AvoidSpursData_t { struct MT2063_ExclZone_t *pNext = pNodeToRemove->next_; + dprintk(2, "\n"); + /* Make previous node point to the subsequent node */ if (pPrevNode != NULL) pPrevNode->next_ = pNext; @@ -413,6 +431,8 @@ static void MT2063_AddExclZone(struct MT2063_AvoidSpursData_t *pAS_Info, struct MT2063_ExclZone_t *pPrev = NULL; struct MT2063_ExclZone_t *pNext = NULL; + dprintk(2, "\n"); + /* Check to see if this overlaps the 1st IF filter */ if ((f_max > (pAS_Info->f_if1_Center - (pAS_Info->f_if1_bw / 2))) && (f_min < (pAS_Info->f_if1_Center + (pAS_Info->f_if1_bw / 2))) @@ -462,6 +482,8 @@ static void MT2063_ResetExclZones(struct MT2063_AvoidSpursData_t *pAS_Info) { u32 center; + dprintk(2, "\n"); + pAS_Info->nZones = 0; /* this clears the used list */ pAS_Info->usedZones = NULL; /* reset ptr */ pAS_Info->freeZones = NULL; /* reset ptr */ @@ -547,7 +569,6 @@ static u32 MT2063_ChooseFirstIF(struct MT2063_AvoidSpursData_t *pAS_Info) pAS_Info->f_LO2_Step) ? pAS_Info->f_LO1_Step : pAS_Info-> f_LO2_Step; u32 f_Center; - s32 i; s32 j = 0; u32 bDesiredExcluded = 0; @@ -557,6 +578,8 @@ static u32 MT2063_ChooseFirstIF(struct MT2063_AvoidSpursData_t *pAS_Info) struct MT2063_ExclZone_t *pNode = pAS_Info->usedZones; struct MT2063_FIFZone_t zones[MT2063_MAX_ZONES]; + dprintk(2, "\n"); + if (pAS_Info->nZones == 0) return f_Desired; @@ -692,6 +715,9 @@ static u32 IsSpurInBand(struct MT2063_AvoidSpursData_t *pAS_Info, s32 f_Spur; u32 ma, mb, mc, md, me, mf; u32 lo_gcd, gd_Scale, gc_Scale, gf_Scale, hgds, hgfs, hgcs; + + dprintk(2, "\n"); + *fm = 0; /* @@ -788,6 +814,8 @@ static u32 MT2063_AvoidSpurs(struct MT2063_AvoidSpursData_t *pAS_Info) pAS_Info->bSpurAvoided = 0; pAS_Info->nSpursFound = 0; + dprintk(2, "\n"); + if (pAS_Info->maxH1 == 0) return 0; @@ -910,6 +938,8 @@ static unsigned int mt2063_lockStatus(struct mt2063_state *state) u32 status; u32 nDelays = 0; + dprintk(2, "\n"); + /* LO2 Lock bit was in a different place for B0 version */ if (state->tuner_id == MT2063_B0) LO2LK = 0x40; @@ -1001,6 +1031,8 @@ static const u8 PD2TGT[] = { 40, 33, 38, 42, 30, 38 }; static u32 mt2063_get_dnc_output_enable(struct mt2063_state *state, enum MT2063_DNC_Output_Enable *pValue) { + dprintk(2, "\n"); + if ((state->reg[MT2063_REG_DNC_GAIN] & 0x03) == 0x03) { /* if DNC1 is off */ if ((state->reg[MT2063_REG_VGA_GAIN] & 0x03) == 0x03) /* if DNC2 is off */ *pValue = MT2063_DNC_NONE; @@ -1024,6 +1056,8 @@ static u32 mt2063_set_dnc_output_enable(struct mt2063_state *state, u32 status = 0; /* Status to be returned */ u8 val = 0; + dprintk(2, "\n"); + /* selects, which DNC output is used */ switch (nValue) { case MT2063_DNC_NONE: @@ -1157,6 +1191,8 @@ static u32 MT2063_SetReceiverMode(struct mt2063_state *state, u8 val; u32 longval; + dprintk(2, "\n"); + if (Mode >= MT2063_NUM_RCVR_MODES) status = -ERANGE; @@ -1292,6 +1328,7 @@ static u32 MT2063_ClearPowerMaskBits(struct mt2063_state *state, { u32 status = 0; + dprintk(2, "\n"); Bits = (enum MT2063_Mask_Bits)(Bits & MT2063_ALL_SD); /* Only valid bits for this tuner */ if ((Bits & 0xFF00) != 0) { state->reg[MT2063_REG_PWR_2] &= ~(u8) (Bits >> 8); @@ -1320,6 +1357,7 @@ static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown) { u32 status; + dprintk(2, "\n"); if (Shutdown == 1) state->reg[MT2063_REG_PWR_1] |= 0x04; else @@ -1498,6 +1536,7 @@ static u32 MT2063_Tune(struct mt2063_state *state, u32 f_in) u8 val; u32 RFBand; + dprintk(2, "\n"); /* Check the input and output frequency ranges */ if ((f_in < MT2063_MIN_FIN_FREQ) || (f_in > MT2063_MAX_FIN_FREQ)) return -EINVAL; @@ -1757,12 +1796,16 @@ static int mt2063_init(struct dvb_frontend *fe) u32 fcu_osc; u32 i; + dprintk(2, "\n"); + state->rcvr_mode = MT2063_CABLE_QAM; /* Read the Part/Rev code from the tuner */ status = mt2063_read(state, MT2063_REG_PART_REV, state->reg, 1); - if (status < 0) + if (status < 0) { + printk(KERN_ERR "Can't read mt2063 part ID\n"); return status; + } /* Check the part/rev code */ if (((state->reg[MT2063_REG_PART_REV] != MT2063_B0) /* MT2063 B0 */ @@ -1775,8 +1818,10 @@ static int mt2063_init(struct dvb_frontend *fe) &state->reg[MT2063_REG_RSVD_3B], 1); /* b7 != 0 ==> NOT MT2063 */ - if (status < 0 || ((state->reg[MT2063_REG_RSVD_3B] & 0x80) != 0x00)) + if (status < 0 || ((state->reg[MT2063_REG_RSVD_3B] & 0x80) != 0x00)) { + printk(KERN_ERR "Can't read mt2063 2nd part ID\n"); return -ENODEV; /* Wrong tuner Part/Rev code */ + } /* Reset the tuner */ status = mt2063_write(state, MT2063_REG_LO2CQ_3, &all_resets, 1); @@ -1940,6 +1985,8 @@ static int mt2063_get_status(struct dvb_frontend *fe, u32 *tuner_status) struct mt2063_state *state = fe->tuner_priv; int status; + dprintk(2, "\n"); + *tuner_status = 0; status = mt2063_lockStatus(state); if (status < 0) @@ -1954,6 +2001,8 @@ static int mt2063_release(struct dvb_frontend *fe) { struct mt2063_state *state = fe->tuner_priv; + dprintk(2, "\n"); + fe->tuner_priv = NULL; kfree(state); @@ -1974,6 +2023,8 @@ static int mt2063_set_analog_params(struct dvb_frontend *fe, s32 rcvr_mode = 0; int status; + dprintk(2, "\n"); + switch (params->mode) { case V4L2_TUNER_RADIO: pict_car = 38900000; @@ -2065,6 +2116,8 @@ static int mt2063_set_params(struct dvb_frontend *fe) s32 if_mid = 0; s32 rcvr_mode = 0; + dprintk(2, "\n"); + if (c->bandwidth_hz == 0) return -EINVAL; if (c->bandwidth_hz <= 6000000) @@ -2116,6 +2169,8 @@ static int mt2063_get_frequency(struct dvb_frontend *fe, u32 *freq) { struct mt2063_state *state = fe->tuner_priv; + dprintk(2, "\n"); + *freq = state->frequency; return 0; } @@ -2124,6 +2179,8 @@ static int mt2063_get_bandwidth(struct dvb_frontend *fe, u32 *bw) { struct mt2063_state *state = fe->tuner_priv; + dprintk(2, "\n"); + *bw = state->AS_Data.f_out_bw - 750000; return 0; } @@ -2152,6 +2209,8 @@ struct dvb_frontend *mt2063_attach(struct dvb_frontend *fe, { struct mt2063_state *state = NULL; + dprintk(2, "\n"); + state = kzalloc(sizeof(struct mt2063_state), GFP_KERNEL); if (state == NULL) goto error; @@ -2181,6 +2240,8 @@ unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe) struct mt2063_state *state = fe->tuner_priv; int err = 0; + dprintk(2, "\n"); + err = MT2063_SoftwareShutdown(state, 1); if (err < 0) printk(KERN_ERR "%s: Couldn't shutdown\n", __func__); @@ -2194,6 +2255,8 @@ unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe) struct mt2063_state *state = fe->tuner_priv; int err = 0; + dprintk(2, "\n"); + err = MT2063_ClearPowerMaskBits(state, MT2063_ALL_SD); if (err < 0) printk(KERN_ERR "%s: Invalid parameter\n", __func__); @@ -2202,9 +2265,6 @@ unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe) } EXPORT_SYMBOL_GPL(tuner_MT2063_ClearPowerMaskBits); - -MODULE_PARM_DESC(verbose, "Set Verbosity level"); - MODULE_AUTHOR("Mauro Carvalho Chehab "); MODULE_DESCRIPTION("MT2063 Silicon tuner"); MODULE_LICENSE("GPL"); -- 2.39.5