38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
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#ifndef __aliased_bitband_h
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#define __aliased_bitband_h
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// Aliased Regions for single bit (0th) register access
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// Chapter 4: Memory Map (Table 4-1)
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// TODO
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// - Not all tested, and not all sections added
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// 0x2200 0000 - 0x23FF FFFF - Aliased to SRAM_U bitband
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// TODO
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// 0x4200 0000 - 0x43FF FFFF - Aliased to AIPS and GPIO bitband
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#define GPIO_BITBAND_ADDR(reg, bit) (((uint32_t)&(reg) - 0x40000000) * 32 + (bit) * 4 + 0x42000000)
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#define GPIO_BITBAND_PTR(reg, bit) ((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)))
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// XXX - Only MODREG is tested to work...
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#define GPIO_BITBAND_OUTREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 0)
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#define GPIO_BITBAND_SETREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 32)
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#define GPIO_BITBAND_CLRREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 64)
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#define GPIO_BITBAND_TOGREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 96)
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#define GPIO_BITBAND_INPREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 128)
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#define GPIO_BITBAND_MODREG(reg, bit) *((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) + 160)
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#endif
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