diff options
Diffstat (limited to 'drivers/usb/musb/musbhsdma.c')
| -rw-r--r-- | drivers/usb/musb/musbhsdma.c | 84 |
1 files changed, 14 insertions, 70 deletions
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 8c734ef2c1ed..8662e9e159c3 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -34,58 +34,7 @@ #include <linux/interrupt.h> #include <linux/platform_device.h> #include "musb_core.h" - -#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) -#include "omap2430.h" -#endif - -#define MUSB_HSDMA_BASE 0x200 -#define MUSB_HSDMA_INTR (MUSB_HSDMA_BASE + 0) -#define MUSB_HSDMA_CONTROL 0x4 -#define MUSB_HSDMA_ADDRESS 0x8 -#define MUSB_HSDMA_COUNT 0xc - -#define MUSB_HSDMA_CHANNEL_OFFSET(_bchannel, _offset) \ - (MUSB_HSDMA_BASE + (_bchannel << 4) + _offset) - -/* control register (16-bit): */ -#define MUSB_HSDMA_ENABLE_SHIFT 0 -#define MUSB_HSDMA_TRANSMIT_SHIFT 1 -#define MUSB_HSDMA_MODE1_SHIFT 2 -#define MUSB_HSDMA_IRQENABLE_SHIFT 3 -#define MUSB_HSDMA_ENDPOINT_SHIFT 4 -#define MUSB_HSDMA_BUSERROR_SHIFT 8 -#define MUSB_HSDMA_BURSTMODE_SHIFT 9 -#define MUSB_HSDMA_BURSTMODE (3 << MUSB_HSDMA_BURSTMODE_SHIFT) -#define MUSB_HSDMA_BURSTMODE_UNSPEC 0 -#define MUSB_HSDMA_BURSTMODE_INCR4 1 -#define MUSB_HSDMA_BURSTMODE_INCR8 2 -#define MUSB_HSDMA_BURSTMODE_INCR16 3 - -#define MUSB_HSDMA_CHANNELS 8 - -struct musb_dma_controller; - -struct musb_dma_channel { - struct dma_channel channel; - struct musb_dma_controller *controller; - u32 start_addr; - u32 len; - u16 max_packet_sz; - u8 idx; - u8 epnum; - u8 transmit; -}; - -struct musb_dma_controller { - struct dma_controller controller; - struct musb_dma_channel channel[MUSB_HSDMA_CHANNELS]; - void *private_data; - void __iomem *base; - u8 channel_count; - u8 used_channels; - u8 irq; -}; +#include "musbhsdma.h" static int dma_controller_start(struct dma_controller *c) { @@ -203,12 +152,8 @@ static void configure_channel(struct dma_channel *channel, : 0); /* address/count */ - musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), - dma_addr); - musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), - len); + musb_write_hsdma_addr(mbase, bchannel, dma_addr); + musb_write_hsdma_count(mbase, bchannel, len); /* control (this should start things) */ musb_writew(mbase, @@ -279,13 +224,8 @@ static int dma_channel_abort(struct dma_channel *channel) musb_writew(mbase, MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_CONTROL), 0); - musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), - 0); - musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), - 0); - + musb_write_hsdma_addr(mbase, bchannel, 0); + musb_write_hsdma_count(mbase, bchannel, 0); channel->status = MUSB_DMA_STATUS_FREE; } @@ -333,10 +273,8 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data) } else { u8 devctl; - addr = musb_readl(mbase, - MUSB_HSDMA_CHANNEL_OFFSET( - bchannel, - MUSB_HSDMA_ADDRESS)); + addr = musb_read_hsdma_addr(mbase, + bchannel); channel->actual_len = addr - musb_channel->start_addr; @@ -375,6 +313,12 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data) } } } + +#ifdef CONFIG_BLACKFIN + /* Clear DMA interrup flags */ + musb_writeb(mbase, MUSB_HSDMA_INTR, int_hsdma); +#endif + retval = IRQ_HANDLED; done: spin_unlock_irqrestore(&musb->lock, flags); @@ -424,7 +368,7 @@ dma_controller_create(struct musb *musb, void __iomem *base) controller->controller.channel_abort = dma_channel_abort; if (request_irq(irq, dma_controller_irq, IRQF_DISABLED, - musb->controller->bus_id, &controller->controller)) { + dev_name(musb->controller), &controller->controller)) { dev_err(dev, "request_irq %d failed!\n", irq); dma_controller_destroy(&controller->controller); |