From: H Hartley Sweeten Date: Mon, 15 Oct 2012 17:14:32 +0000 (-0700) Subject: staging: comedi: ni_660x: remove inline private() function X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8c12ec2616d18e9c6f6a6884a8738586be5a15d9;p=linux-beck.git staging: comedi: ni_660x: remove inline private() function The inline private() function simply returns the dev->private pointer to the private data. Remove the inline function and just use a local variable where the private data is used. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index df2f3b0bab48..d86840727449 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -443,11 +443,6 @@ struct ni_660x_private { unsigned short pfi_output_selects[NUM_PFI_CHANNELS]; }; -static inline struct ni_660x_private *private(struct comedi_device *dev) -{ - return dev->private; -} - /* initialized in ni_660x_attach_pci() */ static inline const struct ni_660x_board *board(struct comedi_device *dev) { @@ -737,8 +732,9 @@ static inline void ni_660x_write_register(struct comedi_device *dev, unsigned chip_index, unsigned bits, enum NI_660x_Register reg) { + struct ni_660x_private *devpriv = dev->private; void __iomem *write_address = - private(dev)->mite->daq_io_addr + GPCT_OFFSET[chip_index] + + devpriv->mite->daq_io_addr + GPCT_OFFSET[chip_index] + registerData[reg].offset; switch (registerData[reg].size) { @@ -758,8 +754,9 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev, unsigned chip_index, enum NI_660x_Register reg) { + struct ni_660x_private *devpriv = dev->private; void __iomem *read_address = - private(dev)->mite->daq_io_addr + GPCT_OFFSET[chip_index] + + devpriv->mite->daq_io_addr + GPCT_OFFSET[chip_index] + registerData[reg].offset; switch (registerData[reg].size) { @@ -806,54 +803,56 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, unsigned mite_channel, struct ni_gpct *counter) { + struct ni_660x_private *devpriv = dev->private; unsigned long flags; - spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags); - private(dev)->dma_configuration_soft_copies[counter->chip_index] &= + + spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); + devpriv->dma_configuration_soft_copies[counter->chip_index] &= ~dma_select_mask(mite_channel); - private(dev)->dma_configuration_soft_copies[counter->chip_index] |= + devpriv->dma_configuration_soft_copies[counter->chip_index] |= dma_select_bits(mite_channel, dma_selection_counter(counter->counter_index)); ni_660x_write_register(dev, counter->chip_index, - private(dev)-> - dma_configuration_soft_copies + devpriv->dma_configuration_soft_copies [counter->chip_index] | dma_reset_bit(mite_channel), DMAConfigRegister); mmiowb(); - spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags); + spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); } static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, unsigned mite_channel, struct ni_gpct *counter) { + struct ni_660x_private *devpriv = dev->private; unsigned long flags; - spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags); - private(dev)->dma_configuration_soft_copies[counter->chip_index] &= + + spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); + devpriv->dma_configuration_soft_copies[counter->chip_index] &= ~dma_select_mask(mite_channel); - private(dev)->dma_configuration_soft_copies[counter->chip_index] |= + devpriv->dma_configuration_soft_copies[counter->chip_index] |= dma_select_bits(mite_channel, dma_selection_none); ni_660x_write_register(dev, counter->chip_index, - private(dev)-> - dma_configuration_soft_copies + devpriv->dma_configuration_soft_copies [counter->chip_index], DMAConfigRegister); mmiowb(); - spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags); + spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); } static int ni_660x_request_mite_channel(struct comedi_device *dev, struct ni_gpct *counter, enum comedi_io_direction direction) { + struct ni_660x_private *devpriv = dev->private; unsigned long flags; struct mite_channel *mite_chan; - spin_lock_irqsave(&private(dev)->mite_channel_lock, flags); + spin_lock_irqsave(&devpriv->mite_channel_lock, flags); BUG_ON(counter->mite_chan); - mite_chan = - mite_request_channel(private(dev)->mite, mite_ring(private(dev), - counter)); + mite_chan = mite_request_channel(devpriv->mite, + mite_ring(devpriv, counter)); if (mite_chan == NULL) { - spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); comedi_error(dev, "failed to reserve mite dma channel for counter."); return -EBUSY; @@ -861,16 +860,17 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev, mite_chan->dir = direction; ni_tio_set_mite_channel(counter, mite_chan); ni_660x_set_dma_channel(dev, mite_chan->channel, counter); - spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); return 0; } static void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *counter) { + struct ni_660x_private *devpriv = dev->private; unsigned long flags; - spin_lock_irqsave(&private(dev)->mite_channel_lock, flags); + spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (counter->mite_chan) { struct mite_channel *mite_chan = counter->mite_chan; @@ -878,7 +878,7 @@ static void ni_660x_release_mite_channel(struct comedi_device *dev, ni_tio_set_mite_channel(counter, NULL); mite_release_channel(mite_chan); } - spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); } static int ni_660x_cmd(struct comedi_device *dev, struct comedi_subdevice *s) @@ -947,6 +947,7 @@ static void ni_660x_handle_gpct_interrupt(struct comedi_device *dev, static irqreturn_t ni_660x_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct ni_660x_private *devpriv = dev->private; struct comedi_subdevice *s; unsigned i; unsigned long flags; @@ -954,24 +955,26 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d) if (dev->attached == 0) return IRQ_NONE; /* lock to avoid race with comedi_poll */ - spin_lock_irqsave(&private(dev)->interrupt_lock, flags); + spin_lock_irqsave(&devpriv->interrupt_lock, flags); smp_mb(); for (i = 0; i < ni_660x_num_counters(dev); ++i) { s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)]; ni_660x_handle_gpct_interrupt(dev, s); } - spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags); + spin_unlock_irqrestore(&devpriv->interrupt_lock, flags); return IRQ_HANDLED; } static int ni_660x_input_poll(struct comedi_device *dev, struct comedi_subdevice *s) { + struct ni_660x_private *devpriv = dev->private; unsigned long flags; + /* lock to avoid race with comedi_poll */ - spin_lock_irqsave(&private(dev)->interrupt_lock, flags); + spin_lock_irqsave(&devpriv->interrupt_lock, flags); mite_sync_input_dma(subdev_to_counter(s)->mite_chan, s->async); - spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags); + spin_unlock_irqrestore(&devpriv->interrupt_lock, flags); return comedi_buf_read_n_available(s->async); } @@ -979,9 +982,10 @@ static int ni_660x_buf_change(struct comedi_device *dev, struct comedi_subdevice *s, unsigned long new_size) { + struct ni_660x_private *devpriv = dev->private; int ret; - ret = mite_buf_change(mite_ring(private(dev), subdev_to_counter(s)), + ret = mite_buf_change(mite_ring(devpriv, subdev_to_counter(s)), s->async); if (ret < 0) return ret; @@ -991,32 +995,35 @@ static int ni_660x_buf_change(struct comedi_device *dev, static int ni_660x_allocate_private(struct comedi_device *dev) { + struct ni_660x_private *devpriv; int retval; unsigned i; - retval = alloc_private(dev, sizeof(struct ni_660x_private)); - if (retval < 0) + retval = alloc_private(dev, sizeof(*devpriv)); + if (retval) return retval; + devpriv = dev->private; - spin_lock_init(&private(dev)->mite_channel_lock); - spin_lock_init(&private(dev)->interrupt_lock); - spin_lock_init(&private(dev)->soft_reg_copy_lock); + spin_lock_init(&devpriv->mite_channel_lock); + spin_lock_init(&devpriv->interrupt_lock); + spin_lock_init(&devpriv->soft_reg_copy_lock); for (i = 0; i < NUM_PFI_CHANNELS; ++i) - private(dev)->pfi_output_selects[i] = pfi_output_select_counter; + devpriv->pfi_output_selects[i] = pfi_output_select_counter; return 0; } static int ni_660x_alloc_mite_rings(struct comedi_device *dev) { + struct ni_660x_private *devpriv = dev->private; unsigned i; unsigned j; for (i = 0; i < board(dev)->n_chips; ++i) { for (j = 0; j < counters_per_chip; ++j) { - private(dev)->mite_rings[i][j] = - mite_alloc_ring(private(dev)->mite); - if (private(dev)->mite_rings[i][j] == NULL) + devpriv->mite_rings[i][j] = + mite_alloc_ring(devpriv->mite); + if (devpriv->mite_rings[i][j] == NULL) return -ENOMEM; } } @@ -1025,12 +1032,13 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev) static void ni_660x_free_mite_rings(struct comedi_device *dev) { + struct ni_660x_private *devpriv = dev->private; unsigned i; unsigned j; for (i = 0; i < board(dev)->n_chips; ++i) { for (j = 0; j < counters_per_chip; ++j) - mite_free_ring(private(dev)->mite_rings[i][j]); + mite_free_ring(devpriv->mite_rings[i][j]); } } @@ -1051,6 +1059,7 @@ ni_660x_find_boardinfo(struct pci_dev *pcidev) static int __devinit ni_660x_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) { + struct ni_660x_private *devpriv; struct comedi_subdevice *s; int ret; unsigned i; @@ -1059,21 +1068,23 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, ret = ni_660x_allocate_private(dev); if (ret < 0) return ret; + devpriv = dev->private; + dev->board_ptr = ni_660x_find_boardinfo(pcidev); if (!dev->board_ptr) return -ENODEV; - private(dev)->mite = mite_alloc(pcidev); - if (!private(dev)->mite) + devpriv->mite = mite_alloc(pcidev); + if (!devpriv->mite) return -ENOMEM; dev->board_name = board(dev)->name; - ret = mite_setup2(private(dev)->mite, 1); + ret = mite_setup2(devpriv->mite, 1); if (ret < 0) { dev_warn(dev->class_dev, "error setting up mite\n"); return ret; } - comedi_set_hw_dev(dev, &private(dev)->mite->pcidev->dev); + comedi_set_hw_dev(dev, &devpriv->mite->pcidev->dev); ret = ni_660x_alloc_mite_rings(dev); if (ret < 0) return ret; @@ -1100,13 +1111,13 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, output enables in stc dio control reg */ ni_660x_write_register(dev, 0, 0, STCDIOControl); - private(dev)->counter_dev = ni_gpct_device_construct(dev, + devpriv->counter_dev = ni_gpct_device_construct(dev, &ni_gpct_write_register, &ni_gpct_read_register, ni_gpct_variant_660x, ni_660x_num_counters (dev)); - if (private(dev)->counter_dev == NULL) + if (devpriv->counter_dev == NULL) return -ENOMEM; for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) { s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)]; @@ -1127,11 +1138,11 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, s->poll = &ni_660x_input_poll; s->async_dma_dir = DMA_BIDIRECTIONAL; s->buf_change = &ni_660x_buf_change; - s->private = &private(dev)->counter_dev->counters[i]; + s->private = &devpriv->counter_dev->counters[i]; - private(dev)->counter_dev->counters[i].chip_index = + devpriv->counter_dev->counters[i].chip_index = i / counters_per_chip; - private(dev)->counter_dev->counters[i].counter_index = + devpriv->counter_dev->counters[i].counter_index = i % counters_per_chip; } else { s->type = COMEDI_SUBD_UNUSED; @@ -1141,7 +1152,7 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, init_tio_chip(dev, i); for (i = 0; i < ni_660x_num_counters(dev); ++i) - ni_tio_init_counter(&private(dev)->counter_dev->counters[i]); + ni_tio_init_counter(&devpriv->counter_dev->counters[i]); for (i = 0; i < NUM_PFI_CHANNELS; ++i) { if (i < min_counter_pfi_chan) @@ -1156,13 +1167,13 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, for (i = 0; i < board(dev)->n_chips; ++i) set_tio_counterswap(dev, i); - ret = request_irq(mite_irq(private(dev)->mite), ni_660x_interrupt, + ret = request_irq(mite_irq(devpriv->mite), ni_660x_interrupt, IRQF_SHARED, "ni_660x", dev); if (ret < 0) { dev_warn(dev->class_dev, " irq not available\n"); return ret; } - dev->irq = mite_irq(private(dev)->mite); + dev->irq = mite_irq(devpriv->mite); global_interrupt_config_bits = Global_Int_Enable_Bit; if (board(dev)->n_chips > 1) global_interrupt_config_bits |= Cascade_Int_Enable_Bit; @@ -1174,15 +1185,17 @@ static int __devinit ni_660x_attach_pci(struct comedi_device *dev, static void ni_660x_detach(struct comedi_device *dev) { + struct ni_660x_private *devpriv = dev->private; + if (dev->irq) free_irq(dev->irq, dev); - if (dev->private) { - if (private(dev)->counter_dev) - ni_gpct_device_destroy(private(dev)->counter_dev); - if (private(dev)->mite) { + if (devpriv) { + if (devpriv->counter_dev) + ni_gpct_device_destroy(devpriv->counter_dev); + if (devpriv->mite) { ni_660x_free_mite_rings(dev); - mite_unsetup(private(dev)->mite); - mite_free(private(dev)->mite); + mite_unsetup(devpriv->mite); + mite_free(devpriv->mite); } } } @@ -1196,17 +1209,17 @@ ni_660x_GPCT_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, static void init_tio_chip(struct comedi_device *dev, int chipset) { + struct ni_660x_private *devpriv = dev->private; unsigned i; /* init dma configuration register */ - private(dev)->dma_configuration_soft_copies[chipset] = 0; + devpriv->dma_configuration_soft_copies[chipset] = 0; for (i = 0; i < MAX_DMA_CHANNEL; ++i) { - private(dev)->dma_configuration_soft_copies[chipset] |= + devpriv->dma_configuration_soft_copies[chipset] |= dma_select_bits(i, dma_selection_none) & dma_select_mask(i); } ni_660x_write_register(dev, chipset, - private(dev)-> - dma_configuration_soft_copies[chipset], + devpriv->dma_configuration_soft_copies[chipset], DMAConfigRegister); for (i = 0; i < NUM_PFI_CHANNELS; ++i) ni_660x_write_register(dev, chipset, 0, IOConfigReg(i)); @@ -1294,6 +1307,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, unsigned source) { + struct ni_660x_private *devpriv = dev->private; + if (source > num_pfi_output_selects) return -EINVAL; if (source == pfi_output_select_high_Z) @@ -1307,19 +1322,20 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, } BUG_ON(chan >= NUM_PFI_CHANNELS); - private(dev)->pfi_output_selects[chan] = source; - if (private(dev)->pfi_direction_bits & (((uint64_t) 1) << chan)) + devpriv->pfi_output_selects[chan] = source; + if (devpriv->pfi_direction_bits & (((uint64_t) 1) << chan)) ni_660x_select_pfi_output(dev, chan, - private(dev)-> - pfi_output_selects[chan]); + devpriv->pfi_output_selects[chan]); return 0; } static unsigned ni_660x_get_pfi_routing(struct comedi_device *dev, unsigned chan) { + struct ni_660x_private *devpriv = dev->private; + BUG_ON(chan >= NUM_PFI_CHANNELS); - return private(dev)->pfi_output_selects[chan]; + return devpriv->pfi_output_selects[chan]; } static void ni660x_config_filter(struct comedi_device *dev, @@ -1336,6 +1352,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct ni_660x_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); /* The input or output configuration of each digital line is @@ -1345,18 +1362,17 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, switch (data[0]) { case INSN_CONFIG_DIO_OUTPUT: - private(dev)->pfi_direction_bits |= ((uint64_t) 1) << chan; + devpriv->pfi_direction_bits |= ((uint64_t) 1) << chan; ni_660x_select_pfi_output(dev, chan, - private(dev)-> - pfi_output_selects[chan]); + devpriv->pfi_output_selects[chan]); break; case INSN_CONFIG_DIO_INPUT: - private(dev)->pfi_direction_bits &= ~(((uint64_t) 1) << chan); + devpriv->pfi_direction_bits &= ~(((uint64_t) 1) << chan); ni_660x_select_pfi_output(dev, chan, pfi_output_select_high_Z); break; case INSN_CONFIG_DIO_QUERY: data[1] = - (private(dev)->pfi_direction_bits & + (devpriv->pfi_direction_bits & (((uint64_t) 1) << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; return 0; case INSN_CONFIG_SET_ROUTING: