diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-io.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-io.c | 198 |
1 files changed, 14 insertions, 184 deletions
diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c index 220fae8d4ad..ec5b3d7bcc6 100644 --- a/drivers/media/video/cx18/cx18-io.c +++ b/drivers/media/video/cx18/cx18-io.c @@ -24,179 +24,6 @@ #include "cx18-io.h" #include "cx18-irq.h" -void cx18_log_statistics(struct cx18 *cx) -{ - int i; - - if (!(cx18_debug & CX18_DBGFLG_INFO)) - return; - - for (i = 0; i <= CX18_MAX_MMIO_RETRIES; i++) - CX18_DEBUG_INFO("retried_write[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_write[i])); - for (i = 0; i <= CX18_MAX_MMIO_RETRIES; i++) - CX18_DEBUG_INFO("retried_read[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_read[i])); - return; -} - -void cx18_raw_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_raw_writel_noretry(cx, val, addr); - if (val == cx18_raw_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_raw_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_raw_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_raw_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_raw_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (val == cx18_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, - u32 eval, u32 mask) -{ - int i; - eval &= mask; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (eval == (cx18_readl_noretry(cx, addr) & mask)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writew_noretry(cx, val, addr); - if (val == cx18_readw_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writeb_retry(struct cx18 *cx, u8 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writeb_noretry(cx, val, addr); - if (val == cx18_readb_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u8 cx18_readb_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u8 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readb_noretry(cx, addr); - if (val != 0xff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -void cx18_memcpy_fromio(struct cx18 *cx, void *to, - const void __iomem *from, unsigned int len) -{ - const u8 __iomem *src = from; - u8 *dst = to; - - /* Align reads on the CX23418's addresses */ - if ((len > 0) && ((unsigned long) src & 1)) { - *dst = cx18_readb(cx, src); - len--; - dst++; - src++; - } - if ((len > 1) && ((unsigned long) src & 2)) { - *((u16 *)dst) = cx18_raw_readw(cx, src); - len -= 2; - dst += 2; - src += 2; - } - while (len > 3) { - *((u32 *)dst) = cx18_raw_readl(cx, src); - len -= 4; - dst += 4; - src += 4; - } - if (len > 1) { - *((u16 *)dst) = cx18_raw_readw(cx, src); - len -= 2; - dst += 2; - src += 2; - } - if (len > 0) - *dst = cx18_readb(cx, src); -} - void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) { u8 __iomem *dst = addr; @@ -230,32 +57,35 @@ void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) void cx18_sw1_irq_enable(struct cx18 *cx, u32 val) { - u32 r; cx18_write_reg_expect(cx, val, SW1_INT_STATUS, ~val, val); - r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); - cx18_write_reg(cx, r | val, SW1_INT_ENABLE_PCI); + cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) | val; + cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); } void cx18_sw1_irq_disable(struct cx18 *cx, u32 val) { - u32 r; - r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); - cx18_write_reg(cx, r & ~val, SW1_INT_ENABLE_PCI); + cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) & ~val; + cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); } void cx18_sw2_irq_enable(struct cx18 *cx, u32 val) { - u32 r; cx18_write_reg_expect(cx, val, SW2_INT_STATUS, ~val, val); - r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); - cx18_write_reg(cx, r | val, SW2_INT_ENABLE_PCI); + cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) | val; + cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); } void cx18_sw2_irq_disable(struct cx18 *cx, u32 val) { + cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) & ~val; + cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); +} + +void cx18_sw2_irq_disable_cpu(struct cx18 *cx, u32 val) +{ u32 r; - r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); - cx18_write_reg(cx, r & ~val, SW2_INT_ENABLE_PCI); + r = cx18_read_reg(cx, SW2_INT_ENABLE_CPU); + cx18_write_reg(cx, r & ~val, SW2_INT_ENABLE_CPU); } void cx18_setup_page(struct cx18 *cx, u32 addr) |