static irqreturn_t omap_mcbsp_irq_handler(int irq, void *dev_id) { struct omap_mcbsp *mcbsp = dev_id; u16 irqst; irqst = MCBSP_READ(mcbsp, IRQST); dev_dbg(mcbsp->dev, "IRQ callback : 0x%x\n", irqst); if (irqst & RSYNCERREN) dev_err(mcbsp->dev, "RX Frame Sync Error!\n"); if (irqst & RFSREN) dev_dbg(mcbsp->dev, "RX Frame Sync\n"); if (irqst & REOFEN) dev_dbg(mcbsp->dev, "RX End Of Frame\n"); if (irqst & RRDYEN) dev_dbg(mcbsp->dev, "RX Buffer Threshold Reached\n"); if (irqst & RUNDFLEN) dev_err(mcbsp->dev, "RX Buffer Underflow!\n"); if (irqst & ROVFLEN) dev_err(mcbsp->dev, "RX Buffer Overflow!\n"); if (irqst & XSYNCERREN) dev_err(mcbsp->dev, "TX Frame Sync Error!\n"); if (irqst & XFSXEN) dev_dbg(mcbsp->dev, "TX Frame Sync\n"); if (irqst & XEOFEN) dev_dbg(mcbsp->dev, "TX End Of Frame\n"); if (irqst & XRDYEN) dev_dbg(mcbsp->dev, "TX Buffer threshold Reached\n"); if (irqst & XUNDFLEN) dev_err(mcbsp->dev, "TX Buffer Underflow!\n"); if (irqst & XOVFLEN) dev_err(mcbsp->dev, "TX Buffer Overflow!\n"); if (irqst & XEMPTYEOFEN) dev_dbg(mcbsp->dev, "TX Buffer empty at end of frame\n"); MCBSP_WRITE(mcbsp, IRQST, irqst); return IRQ_HANDLED; }
static void omap_st_on(struct omap_mcbsp *mcbsp) { unsigned int w; struct omap_device *od; od = find_omap_device_by_dev(mcbsp->dev); /* * Sidetone uses McBSP ICLK - which must not idle when sidetones * are enabled or sidetones start sounding ugly. */ w = omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); w &= ~(1 << (mcbsp->id - 2)); omap2_cm_write_mod_reg(w, OMAP3430_PER_MOD, CM_AUTOIDLE); /* Enable McBSP Sidetone */ w = MCBSP_READ(mcbsp, SSELCR); MCBSP_WRITE(mcbsp, SSELCR, w | SIDETONEEN); /* Enable Sidetone from Sidetone Core */ w = MCBSP_ST_READ(mcbsp, SSELCR); MCBSP_ST_WRITE(mcbsp, SSELCR, w | ST_SIDETONEEN); }
static void omap_mcbsp_dump_reg(struct omap_mcbsp *mcbsp) { dev_dbg(mcbsp->dev, "**** McBSP%d regs ****\n", mcbsp->id); dev_dbg(mcbsp->dev, "DRR2: 0x%04x\n", MCBSP_READ(mcbsp, DRR2)); dev_dbg(mcbsp->dev, "DRR1: 0x%04x\n", MCBSP_READ(mcbsp, DRR1)); dev_dbg(mcbsp->dev, "DXR2: 0x%04x\n", MCBSP_READ(mcbsp, DXR2)); dev_dbg(mcbsp->dev, "DXR1: 0x%04x\n", MCBSP_READ(mcbsp, DXR1)); dev_dbg(mcbsp->dev, "SPCR2: 0x%04x\n", MCBSP_READ(mcbsp, SPCR2)); dev_dbg(mcbsp->dev, "SPCR1: 0x%04x\n", MCBSP_READ(mcbsp, SPCR1)); dev_dbg(mcbsp->dev, "RCR2: 0x%04x\n", MCBSP_READ(mcbsp, RCR2)); dev_dbg(mcbsp->dev, "RCR1: 0x%04x\n", MCBSP_READ(mcbsp, RCR1)); dev_dbg(mcbsp->dev, "XCR2: 0x%04x\n", MCBSP_READ(mcbsp, XCR2)); dev_dbg(mcbsp->dev, "XCR1: 0x%04x\n", MCBSP_READ(mcbsp, XCR1)); dev_dbg(mcbsp->dev, "SRGR2: 0x%04x\n", MCBSP_READ(mcbsp, SRGR2)); dev_dbg(mcbsp->dev, "SRGR1: 0x%04x\n", MCBSP_READ(mcbsp, SRGR1)); dev_dbg(mcbsp->dev, "PCR0: 0x%04x\n", MCBSP_READ(mcbsp, PCR0)); dev_dbg(mcbsp->dev, "***********************\n"); }