From 000e2635028bf8a1537383c5c27bf1bff27bc2f6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 18 Jul 2012 18:43:18 -0700 Subject: [PATCH] staging: comedi: cb_pcidas64: store the pci_dev in the comedi_device Use the hw_dev pointer in the comedi_device struct to hold the pci_dev instead of carrying it in the private data. Save the pci bar in dev->iobase so the detach is consistent with the other comedi pci drivers. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidas64.c | 39 +++++++++++++++------------- 1 file changed, 21 insertions(+), 18 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index d1b0327..65cbaab 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -1047,8 +1047,6 @@ struct ext_clock_info { /* this structure is for data unique to this hardware driver. */ struct pcidas64_private { - - struct pci_dev *hw_dev; /* pointer to board's pci_dev struct */ /* base addresses (physical) */ resource_size_t plx9080_phys_iobase; resource_size_t main_phys_iobase; @@ -1553,12 +1551,13 @@ static void init_stc_registers(struct comedi_device *dev) static int alloc_and_init_dma_members(struct comedi_device *dev) { + struct pci_dev *pcidev = comedi_to_pci_dev(dev); int i; /* alocate pci dma buffers */ for (i = 0; i < ai_dma_ring_count(board(dev)); i++) { priv(dev)->ai_buffer[i] = - pci_alloc_consistent(priv(dev)->hw_dev, DMA_BUFFER_SIZE, + pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE, &priv(dev)->ai_buffer_bus_addr[i]); if (priv(dev)->ai_buffer[i] == NULL) return -ENOMEM; @@ -1567,7 +1566,7 @@ static int alloc_and_init_dma_members(struct comedi_device *dev) for (i = 0; i < AO_DMA_RING_COUNT; i++) { if (ao_cmd_is_supported(board(dev))) { priv(dev)->ao_buffer[i] = - pci_alloc_consistent(priv(dev)->hw_dev, + pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE, &priv(dev)-> ao_buffer_bus_addr[i]); @@ -1578,7 +1577,7 @@ static int alloc_and_init_dma_members(struct comedi_device *dev) } /* allocate dma descriptors */ priv(dev)->ai_dma_desc = - pci_alloc_consistent(priv(dev)->hw_dev, + pci_alloc_consistent(pcidev, sizeof(struct plx_dma_desc) * ai_dma_ring_count(board(dev)), &priv(dev)->ai_dma_desc_bus_addr); @@ -1589,7 +1588,7 @@ static int alloc_and_init_dma_members(struct comedi_device *dev) priv(dev)->ai_dma_desc_bus_addr); if (ao_cmd_is_supported(board(dev))) { priv(dev)->ao_dma_desc = - pci_alloc_consistent(priv(dev)->hw_dev, + pci_alloc_consistent(pcidev, sizeof(struct plx_dma_desc) * AO_DMA_RING_COUNT, &priv(dev)->ao_dma_desc_bus_addr); @@ -1699,7 +1698,7 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it) pcidev = cb_pcidas64_find_pci_dev(dev, it); if (!pcidev) return -EIO; - priv(dev)->hw_dev = pcidev; + comedi_set_hw_dev(dev, &pcidev->dev); if (comedi_pci_enable(pcidev, dev->driver->driver_name)) { dev_warn(dev->class_dev, @@ -1711,10 +1710,11 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it) /* Initialize dev->board_name */ dev->board_name = board(dev)->name; + dev->iobase = pci_resource_start(pcidev, MAIN_BADDRINDEX); + priv(dev)->plx9080_phys_iobase = pci_resource_start(pcidev, PLX9080_BADDRINDEX); - priv(dev)->main_phys_iobase = - pci_resource_start(pcidev, MAIN_BADDRINDEX); + priv(dev)->main_phys_iobase = dev->iobase; priv(dev)->dio_counter_phys_iobase = pci_resource_start(pcidev, DIO_COUNTER_BADDRINDEX); @@ -1791,12 +1791,13 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it) static void detach(struct comedi_device *dev) { + struct pci_dev *pcidev = comedi_to_pci_dev(dev); unsigned int i; if (dev->irq) free_irq(dev->irq, dev); if (priv(dev)) { - if (priv(dev)->hw_dev) { + if (pcidev) { if (priv(dev)->plx9080_iobase) { disable_plx_interrupts(dev); iounmap(priv(dev)->plx9080_iobase); @@ -1808,7 +1809,7 @@ static void detach(struct comedi_device *dev) /* free pci dma buffers */ for (i = 0; i < ai_dma_ring_count(board(dev)); i++) { if (priv(dev)->ai_buffer[i]) - pci_free_consistent(priv(dev)->hw_dev, + pci_free_consistent(pcidev, DMA_BUFFER_SIZE, priv(dev)-> ai_buffer[i], @@ -1818,7 +1819,7 @@ static void detach(struct comedi_device *dev) } for (i = 0; i < AO_DMA_RING_COUNT; i++) { if (priv(dev)->ao_buffer[i]) - pci_free_consistent(priv(dev)->hw_dev, + pci_free_consistent(pcidev, DMA_BUFFER_SIZE, priv(dev)-> ao_buffer[i], @@ -1828,7 +1829,7 @@ static void detach(struct comedi_device *dev) } /* free dma descriptors */ if (priv(dev)->ai_dma_desc) - pci_free_consistent(priv(dev)->hw_dev, + pci_free_consistent(pcidev, sizeof(struct plx_dma_desc) * ai_dma_ring_count(board @@ -1837,20 +1838,22 @@ static void detach(struct comedi_device *dev) priv(dev)-> ai_dma_desc_bus_addr); if (priv(dev)->ao_dma_desc) - pci_free_consistent(priv(dev)->hw_dev, + pci_free_consistent(pcidev, sizeof(struct plx_dma_desc) * AO_DMA_RING_COUNT, priv(dev)->ao_dma_desc, priv(dev)-> ao_dma_desc_bus_addr); - if (priv(dev)->main_phys_iobase) - comedi_pci_disable(priv(dev)->hw_dev); - - pci_dev_put(priv(dev)->hw_dev); } } if (dev->subdevices) subdev_8255_cleanup(dev, dev->subdevices + 4); + if (pcidev) { + if (dev->iobase) + comedi_pci_disable(pcidev); + + pci_dev_put(pcidev); + } } static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, -- 2.7.4