diff options
Diffstat (limited to 'libs/MII/mii.c')
| -rw-r--r-- | libs/MII/mii.c | 54 |
1 files changed, 30 insertions, 24 deletions
diff --git a/libs/MII/mii.c b/libs/MII/mii.c index 51042d2..ad8e2ef 100644 --- a/libs/MII/mii.c +++ b/libs/MII/mii.c @@ -55,15 +55,17 @@ static void __attribute__((noinline)) MII_wait(void) uint8_t MII_getPhy(void) { - if(DEVICE.SgmiiStatus.bits.MediaSelectionMode) + if (DEVICE.SgmiiStatus.bits.MediaSelectionMode) { // SERDES platform - return DEVICE.Status.bits.FunctionNumber + DEVICE_MII_COMMUNICATION_PHY_ADDRESS_SGMII_0; + return DEVICE.Status.bits.FunctionNumber + + DEVICE_MII_COMMUNICATION_PHY_ADDRESS_SGMII_0; } else { // GPHY platform - return DEVICE.Status.bits.FunctionNumber + DEVICE_MII_COMMUNICATION_PHY_ADDRESS_PHY_0; + return DEVICE.Status.bits.FunctionNumber + + DEVICE_MII_COMMUNICATION_PHY_ADDRESS_PHY_0; } } @@ -114,16 +116,16 @@ static void MII_writeRegisterInternal(uint8_t phy, mii_reg_t reg, uint16_t data) MII_wait(); } - static uint16_t MII_readShadowRegister18(uint8_t phy, mii_reg_t reg) { - // Write register 18h, bits [2:0] = 111 This selects the Miscellaneous Control register, shadow 7h. - // All reads must be performed through the Miscellaneous Control register. - // Bit 15 = 0 This allows only bits [14:12] and bits [2:0] to be written. - // Bits [14:12] = zzz This selects shadow register zzz to be read. - // Bits [11: 3] = <don't care> When bit 15 = 0, these bits are ignored. - // Bits [2:0] = 111 This sets the Shadow Register Select to 111 (Miscellaneous Control register). - // Read register 18h Data read back is the value from shadow register zzz. + // Write register 18h, bits [2:0] = 111 This selects the Miscellaneous + // Control register, shadow 7h. All reads must be performed through the + // Miscellaneous Control register. Bit 15 = 0 This allows only bits [14:12] + // and bits [2:0] to be written. Bits [14:12] = zzz This selects shadow + // register zzz to be read. Bits [11: 3] = <don't care> When bit 15 = 0, + // these bits are ignored. Bits [2:0] = 111 This sets the Shadow Register + // Select to 111 (Miscellaneous Control register). Read register 18h Data + // read back is the value from shadow register zzz. // -------------------------------------------- // PHY 0x18 Shadow 0x1 register read Procedure @@ -163,11 +165,11 @@ static uint16_t MII_readShadowRegister1C(uint8_t phy, mii_reg_t reg) uint16_t MII_readRegister(uint8_t phy, mii_reg_t reg) { - if((reg & 0xFF) == 0x1C) + if ((reg & 0xFF) == 0x1C) { return MII_readShadowRegister1C(phy, reg); } - else if((reg & 0xFF) == 0x18) + else if ((reg & 0xFF) == 0x18) { return MII_readShadowRegister18(phy, reg); } @@ -179,9 +181,9 @@ uint16_t MII_readRegister(uint8_t phy, mii_reg_t reg) static void MII_writeShadowRegister18(uint8_t phy, mii_reg_t reg, uint16_t data) { - // Set Bits [15:3] = Preferred write values Bits [15:3] contain the desired bits to be written to. - // Set Bits [2:0] = yyy This enables shadow register yyy to be written. - // For shadow 7h, bit 15 must also be written. + // Set Bits [15:3] = Preferred write values Bits [15:3] contain the desired + // bits to be written to. Set Bits [2:0] = yyy This enables shadow register + // yyy to be written. For shadow 7h, bit 15 must also be written. // -------------------------------------------- // PHY 0x18 Shadow 0x2 register write Procedure @@ -195,13 +197,14 @@ static void MII_writeShadowRegister18(uint8_t phy, mii_reg_t reg, uint16_t data) shadow_select.r16 = 0; shadow_select.bits.ShadowRegisterReadSelector = shadow_reg; shadow_select.bits.ShadowRegisterSelector = 7; - MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_AUXILIARY_CONTROL, shadow_select.r16); + MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_AUXILIARY_CONTROL, + shadow_select.r16); RegMIIMiscellaneousControl_t write_data; write_data.r16 = data; write_data.bits.ShadowRegisterSelector = shadow_reg; - MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_AUXILIARY_CONTROL, write_data.r16); - + MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_AUXILIARY_CONTROL, + write_data.r16); } static void MII_writeShadowRegister1C(uint8_t phy, mii_reg_t reg, uint16_t data) @@ -217,23 +220,25 @@ static void MII_writeShadowRegister1C(uint8_t phy, mii_reg_t reg, uint16_t data) RegMIICabletronLed_t shadow_select; shadow_select.r16 = 0; shadow_select.bits.ShadowRegisterSelector = shadow_reg; - MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_CABLETRON_LED, shadow_select.r16); + MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_CABLETRON_LED, + shadow_select.r16); RegMIICabletronLed_t write_data; write_data.r16 = data; write_data.bits.ShadowRegisterSelector = shadow_reg; write_data.bits.WriteEnable = 1; - MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_CABLETRON_LED, write_data.r16); + MII_writeRegisterInternal(phy, (mii_reg_t)REG_MII_CABLETRON_LED, + write_data.r16); } void MII_writeRegister(uint8_t phy, mii_reg_t reg, uint16_t data) { - if((reg & 0xFF) == 0x1C) + if ((reg & 0xFF) == 0x1C) { MII_writeShadowRegister1C(phy, reg, data); } - else if((reg & 0xFF) == 0x18) + else if ((reg & 0xFF) == 0x18) { MII_writeShadowRegister18(phy, reg, data); } @@ -263,5 +268,6 @@ void MII_reset(uint8_t phy) do { // Spin - } while((MII_readRegister(phy, (mii_reg_t)REG_MII_CONTROL) & MII_CONTROL_RESET_MASK) == MII_CONTROL_RESET_MASK); + } while ((MII_readRegister(phy, (mii_reg_t)REG_MII_CONTROL) & + MII_CONTROL_RESET_MASK) == MII_CONTROL_RESET_MASK); } |
