Skip to content

F
FMC ADC 100M 14b 4cha - Software
Commit 7ca5005c authored by Federico Vaga's avatar Federico Vaga
Browse files
Options

fmc-adc.h updata spec_fa comment 

Signed-off-by: 's avatarFederico Vaga <federico.vaga@gmail.com>
parent 542b4bd0
Hide whitespace changes
Inline Side-by-side
Showing with 28 additions and 6 deletions
fmc-adc.h
View file @ 7ca5005c
......@@ -37,6 +37,28 @@ struct dma_item {
*/
};
/*
* spec_fa: is the descriptor of the FMC ADC mezzanine
*
* @fmc: the pointer to the fmc_device generic structure
* @spec: this driver depends on spec (FIXME no svec at the moment)
* @zdev: is the pointer to the real zio_device in use
* @hwzdev: is the pointer to the fake zio_device, used to initialize and
* to remove a zio_device
*
* DMA variable: these variables are used by the fa-dma.c engine
* @sgt: scatter/gather table
* @items: vector of dma_item for a single DMA transfer
* @dma_list_item: contains the address of items mapped for DMA access. The
* device will access items to retrive information about the
* DMA items to transfer.
* @lst_dev_mem: contains the device address where last block is stored.
* FIXME when it reset?
* @cur_dev_mem: contains the device address to the current block of data in
* transmission from device. It is updated for each dma_items
* transfer
* @base: the base address for to access device registers (BAR0)
*/
struct spec_fa {
struct fmc_device *fmc;
struct spec_dev *spec;
......@@ -44,13 +66,13 @@ struct spec_fa {
struct zio_device *hwzdev;
/* DMA variable */
struct sg_table sgt; /* scatter/gather table */
struct dma_item *items; /* items for DMA transfers */
dma_addr_t dma_list_item; /* DMA address for items */
uint32_t lst_dev_mem; /* offset of last acquired */
uint32_t cur_dev_mem; /* current dev memory acq */
struct sg_table sgt;
struct dma_item *items;
dma_addr_t dma_list_item;
uint32_t lst_dev_mem;
uint32_t cur_dev_mem;
unsigned char __iomem *base; /* regs files are byte-oriented */
unsigned char __iomem *base;
/* one-wire */
uint8_t ds18_id[8];
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment