diff options
Diffstat (limited to 'package/lqtapi/src/mps/mps-irq.c')
| -rw-r--r-- | package/lqtapi/src/mps/mps-irq.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/package/lqtapi/src/mps/mps-irq.c b/package/lqtapi/src/mps/mps-irq.c deleted file mode 100644 index 8da0c00c78..0000000000 --- a/package/lqtapi/src/mps/mps-irq.c +++ /dev/null @@ -1,157 +0,0 @@ -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <ifxmips_irq.h> - -#include "mps.h" -#include "mps-irq.h" - -#define MPS_REG_AD0_IRQ_BASE 0x40 -#define MPS_REG_AD1_IRQ_BASE 0x44 - -#define MPS_REG_AD_IRQ_STATUS 0x00 -#define MPS_REG_AD_IRQ_SET 0x08 -#define MPS_REG_AD_IRQ_CLEAR 0x10 -#define MPS_REG_AD_IRQ_ENABLE 0x18 - -struct mps_irq_desc -{ - void __iomem *base; - unsigned int irq_base; -}; - -static inline unsigned int mps_irq_bit(struct mps_irq_desc *mps_desc, int irq) -{ - return BIT(irq - mps_desc->irq_base); -} - -static void mps_irq_ack(unsigned int irq) -{ - struct mps_irq_desc *mps_desc = get_irq_chip_data(irq); - - __raw_writel(mps_irq_bit(mps_desc, irq), - mps_desc->base + MPS_REG_AD_IRQ_CLEAR); -} - -static void mps_irq_mask(unsigned int irq) -{ - struct mps_irq_desc *mps_desc = get_irq_chip_data(irq); - uint32_t mask; - - mask = __raw_readl(mps_desc->base + MPS_REG_AD_IRQ_ENABLE); - mask &= ~mps_irq_bit(mps_desc, irq); - __raw_writel(mask, mps_desc->base + MPS_REG_AD_IRQ_ENABLE); -} - -static void mps_irq_unmask(unsigned int irq) -{ - struct mps_irq_desc *mps_desc = get_irq_chip_data(irq); - uint32_t mask; - - mask = __raw_readl(mps_desc->base + MPS_REG_AD_IRQ_ENABLE); - mask |= mps_irq_bit(mps_desc, irq) | 0xffff; - __raw_writel(mask, mps_desc->base + MPS_REG_AD_IRQ_ENABLE); -} - -static struct irq_chip mps_irq_chip = { - .name = "mps", - .ack = mps_irq_ack, - .mask = mps_irq_mask, - .unmask = mps_irq_unmask, -}; - -static void mps_irq_demux_handler(unsigned int irq, struct irq_desc *desc) -{ - struct mps_irq_desc *mps_desc = get_irq_data(irq); - uint32_t val; - int mps_irq; - - desc->chip->mask(irq); - - val = __raw_readl(mps_desc->base + MPS_REG_AD_IRQ_STATUS); - mps_irq = ffs(val); - -/* printk("irq: %d %x\n", mps_irq, val);*/ - - if (mps_irq > 16) - printk("PANIC!\n"); - - if (mps_irq) - generic_handle_irq(mps_irq + mps_desc->irq_base - 1); - - desc->chip->ack(irq); - desc->chip->unmask(irq); -} - -#if 0 - -static const uint32_t ring_msg[] = { -0x01010004, 0x00030000, -}; - -static irqreturn_t mps_irq_ad0(int irq, void *devid) -{ - struct mps *mps = devid; - uint32_t val; - - val = __raw_readl(mps->base + MPS_REG_AD0_IRQ_STATUS); - printk("WOHO ein IRQ: %x\n", val); - __raw_writel(val, mps->base + MPS_REG_AD0_IRQ_CLEAR); - - if (val & BIT(MPS_IRQ_DOWNLOAD_DONE)) - complete(&mps->init_completion); - - if (val & BIT(MPS_IRQ_EVENT)) - mps_fifo_in(&mps->mbox_cmd.downstream, ring_msg, ARRAY_SIZE(ring_msg)); - - return IRQ_HANDLED; -} -#endif - -#define MPS_NUM_AD_IRQS 32 - -struct mps_irq_desc mps_irq_descs[2]; - -int mps_irq_init(struct mps *mps) -{ - int ret = 0; - int irq; - - mps_irq_descs[0].base = mps->base + MPS_REG_AD0_IRQ_BASE; - mps_irq_descs[0].irq_base = mps->irq_base; - mps_irq_descs[1].base = mps->base + MPS_REG_AD1_IRQ_BASE; - mps_irq_descs[1].irq_base = mps->irq_base + 16; - - - set_irq_data(mps->irq_ad0, &mps_irq_descs[0]); - set_irq_chained_handler(mps->irq_ad0, mps_irq_demux_handler); - set_irq_data(mps->irq_ad1, &mps_irq_descs[1]); - set_irq_chained_handler(mps->irq_ad1, mps_irq_demux_handler); - -/* - ret = request_irq(mps->irq_ad0, mps_irq_demux_handler, IRQF_DISABLED, - "mps ad0", &mps_irq_descs[0]); - ret = request_irq(mps->irq_ad1, mps_irq_demux_handler, IRQF_DISABLED, - "mps ad0", &mps_irq_descs[1]); -*/ - for (irq = 0; irq < MPS_NUM_AD_IRQS; ++irq) { - set_irq_chip_data(irq + mps->irq_base, &mps_irq_descs[irq / 16]); - set_irq_chip_and_handler(irq + mps->irq_base, &mps_irq_chip, handle_level_irq); - } - - -/* - res = request_irq(INT_NUM_IM4_IRL18, mps_irq_ad0, IRQF_DISABLED, - "mps ad0", mps); - - irqs = BIT(MPS_IRQ_CMD_UPSTREAM) | BIT(MPS_IRQ_DATA_UPSTREAM) - | BIT(MPS_IRQ_DOWNLOAD_DONE) | BIT(MPS_IRQ_EVENT) | BIT(MPS_IRQ_CMD_ERROR); - - __raw_writel(irqs, mps->base + MPS_REG_AD0_IRQ_ENA); -*/ - return ret; -} - -void mps_irq_exit(struct mps *mps) -{ - free_irq(INT_NUM_IM4_IRL18, mps); -} |