[PATCH v4 2/2] can: m_can: add Bosch M_CAN controller support

Tue Jul 15 00:20:50 PDT 2014

On 07/15/2014 12:44 PM, Dong Aisheng wrote:
> On Tue, Jul 15, 2014 at 12:45:15PM +0530, Varka Bhadram wrote:
>> On 07/15/2014 12:40 PM, Marc Kleine-Budde wrote:
>>> On 07/15/2014 08:56 AM, Varka Bhadram wrote:
>>>> On 07/15/2014 11:57 AM, Dong Aisheng wrote:
>>>>> On Mon, Jul 14, 2014 at 06:17:17PM +0530, Varka Bhadram wrote:
>>>>>> +/* Test Register (TEST) */
>>>>>> +#define TEST_LBCK    BIT(4)
>>>>>> +
>>>>>> +/* CC Control Register(CCCR) */
>>>>>> +#define CCCR_TEST    BIT(7)
>>>>>> +#define CCCR_MON    BIT(5)
>>>>>> +#define CCCR_CCE    BIT(1)
>>>>>> +#define CCCR_INIT    BIT(0)
>>>>>> +
>>>>>> +/* Bit Timing & Prescaler Register (BTP) */
>>>>>> +#define BTR_BRP_MASK        0x3ff
>>>>>> +#define BTR_BRP_SHIFT        16
>>>>>> +#define BTR_TSEG1_SHIFT        8
>>>>>> +#define BTR_TSEG1_MASK        (0x3f << BTR_TSEG1_SHIFT)
>>>>>> +#define BTR_TSEG2_SHIFT        4
>>>>>> +#define BTR_TSEG2_MASK        (0xf << BTR_TSEG2_SHIFT)
>>>>>> +#define BTR_SJW_SHIFT        0
>>>>>> +#define BTR_SJW_MASK        0xf
>>>>>> +
>>>>>> +/* Error Counter Register(ECR) */
>>>>>> +#define ECR_RP            BIT(15)
>>>>>> +#define ECR_REC_SHIFT        8
>>>>>> +#define ECR_REC_MASK        (0x7f << ECR_REC_SHIFT)
>>>>>> +#define ECR_TEC_SHIFT        0
>>>>>> +#define ECR_TEC_MASK        0xff
>>>>>> +
>>>>>> +/* Protocol Status Register(PSR) */
>>>>>> +#define PSR_BO        BIT(7)
>>>>>> +#define PSR_EW        BIT(6)
>>>>>> +#define PSR_EP        BIT(5)
>>>>>> +#define PSR_LEC_MASK    0x7
>>>>>> +
>>>>>> +/* Interrupt Register(IR) */
>>>>>> +#define IR_ALL_INT    0xffffffff
>>>>>> +#define IR_STE        BIT(31)
>>>>>> +#define IR_FOE        BIT(30)
>>>>>> +#define IR_ACKE        BIT(29)
>>>>>> +#define IR_BE        BIT(28)
>>>>>> +#define IR_CRCE        BIT(27)
>>>>>> +#define IR_WDI        BIT(26)
>>>>>> +#define IR_BO        BIT(25)
>>>>>> +#define IR_EW        BIT(24)
>>>>>> +#define IR_EP        BIT(23)
>>>>>> +#define IR_ELO        BIT(22)
>>>>>> +#define IR_BEU        BIT(21)
>>>>>> +#define IR_BEC        BIT(20)
>>>>>> +#define IR_DRX        BIT(19)
>>>>>> +#define IR_TOO        BIT(18)
>>>>>> +#define IR_MRAF        BIT(17)
>>>>>> +#define IR_TSW        BIT(16)
>>>>>> +#define IR_TEFL        BIT(15)
>>>>>> +#define IR_TEFF        BIT(14)
>>>>>> +#define IR_TEFW        BIT(13)
>>>>>> +#define IR_TEFN        BIT(12)
>>>>>> +#define IR_TFE        BIT(11)
>>>>>> +#define IR_TCF        BIT(10)
>>>>>> +#define IR_TC        BIT(9)
>>>>>> +#define IR_HPM        BIT(8)
>>>>>> +#define IR_RF1L        BIT(7)
>>>>>> +#define IR_RF1F        BIT(6)
>>>>>> +#define IR_RF1W        BIT(5)
>>>>>> +#define IR_RF1N        BIT(4)
>>>>>> +#define IR_RF0L        BIT(3)
>>>>>> +#define IR_RF0F        BIT(2)
>>>>>> +#define IR_RF0W        BIT(1)
>>>>>> +#define IR_RF0N        BIT(0)
>>>>>> +#define IR_ERR_STATE    (IR_BO | IR_EW | IR_EP)
>>>>>> +#define IR_ERR_LEC    (IR_STE    | IR_FOE | IR_ACKE | IR_BE | IR_CRCE)
>>>>>> +#define IR_ERR_BUS    (IR_ERR_LEC | IR_WDI | IR_ELO | IR_BEU | IR_BEC \
>>>>>> +            | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L \
>>>>>> +            | IR_RF0L)
>>>>>> +#define IR_ERR_ALL    (IR_ERR_STATE | IR_ERR_BUS)
>>>>>> +
>>>>>> +/* Interrupt Line Select (ILS) */
>>>>>> +#define ILS_ALL_INT0    0x0
>>>>>> +#define ILS_ALL_INT1    0xFFFFFFFF
>>>>>> +
>>>>>> +/* Interrupt Line Enable (ILE) */
>>>>>> +#define ILE_EINT0    BIT(0)
>>>>>> +#define ILE_EINT1    BIT(1)
>>>>>> +
>>>>>> +/* Rx FIFO 0/1 Configuration (RXF0C/RXF1C) */
>>>>>> +#define RXFC_FWM_OFF    24
>>>>>> +#define RXFC_FWM_MASK    0x7f
>>>>>> +#define RXFC_FWM_1    (1 << RXFC_FWM_OFF)
>>>>>> +#define RXFC_FS_OFF    16
>>>>>> +#define RXFC_FS_MASK    0x7f
>>>>>> +
>>>>>> +/* Rx FIFO 0/1 Status (RXF0S/RXF1S) */
>>>>>> +#define RXFS_RFL    BIT(25)
>>>>>> +#define RXFS_FF        BIT(24)
>>>>>> +#define RXFS_FPI_OFF    16
>>>>>> +#define RXFS_FPI_MASK    0x3f0000
>>>>>> +#define RXFS_FGI_OFF    8
>>>>>> +#define RXFS_FGI_MASK    0x3f00
>>>>>> +#define RXFS_FFL_MASK    0x7f
>>>>>> +
>>>>>> +/* Tx Buffer Configuration(TXBC) */
>>>>>> +#define TXBC_NDTB_OFF    16
>>>>>> +#define TXBC_NDTB_MASK    0x3f
>>>>>> +
>>>>>> +/* Tx Buffer Element Size Configuration(TXESC) */
>>>>>> +#define TXESC_TBDS_8BYTES    0x0
>>>>>> +/* Tx Buffer Element */
>>>>>> +#define TX_BUF_XTD    BIT(30)
>>>>>> +#define TX_BUF_RTR    BIT(29)
>>>>>> +
>>>>>> +/* Rx Buffer Element Size Configuration(TXESC) */
>>>>>> +#define M_CAN_RXESC_8BYTES    0x0
>>>>>> +/* Tx Buffer Element */
>>>>>> +#define RX_BUF_ESI    BIT(31)
>>>>>> +#define RX_BUF_XTD    BIT(30)
>>>>>> +#define RX_BUF_RTR    BIT(29)
>>>>>> +
>>>>>> +/* Tx Event FIFO Con.guration (TXEFC) */
>>>>>> +#define TXEFC_EFS_OFF    16
>>>>>> +#define TXEFC_EFS_MASK    0x3f
>>>>>> +
>>>>>> +/* Message RAM Configuration (in bytes) */
>>>>>> +#define SIDF_ELEMENT_SIZE    4
>>>>>> +#define XIDF_ELEMENT_SIZE    8
>>>>>> +#define RXF0_ELEMENT_SIZE    16
>>>>>> +#define RXF1_ELEMENT_SIZE    16
>>>>>> +#define RXB_ELEMENT_SIZE    16
>>>>>> +#define TXE_ELEMENT_SIZE    8
>>>>>> +#define TXB_ELEMENT_SIZE    16
>>>>>> Alignment for all the includes
>>>>>>
>>>>> What do you mean?
>>>>>
>>>> I mean all the #define from top not aligned.
>>>> It would be looks good if aligned properly.
>>>>
>>>> Give common tab spaces for all the #defines...
>>> As I argumented in my other mail, I prefer one space, so no alignment.
>>>
>> I mean in this way....
>>
>> /* Interrupt Register(IR) */
>> #define IR_ALL_INT	0xffffffff
>> #define IR_STE		BIT(31)
>> #define IR_FOE		BIT(30)
>> #define IR_ACKE		BIT(29)
>> #define IR_BE		BIT(28)
>> #define IR_CRCE		BIT(27)
>> #define IR_WDI		BIT(26)
>> #define IR_BO		BIT(25)
>> #define IR_EW		BIT(24)
>> #define IR_EP		BIT(23)
>> #define IR_ELO		BIT(22)
>> #define IR_BEU		BIT(21)
>> #define IR_BEC		BIT(20)
>> .....
>>
> They're already aligned in code.
> I guess the '>' replied in the mail break the alignment.

ohhhhhh... OOpps....  :-).. thanks

> Regards
> Dong Aisheng
>
>> -- 
>> Regards,
>> Varka Bhadram.
>>

-- 
Regards,
Varka Bhadram.