cfe/dev/dev_spi_robo.c

149 static int robo_read_reg(robo_spi_t *softc,int reg,uint8_t *buf,int len)
151     cfe_spi_channel_t *chan = softc->spi_channel;
164 static int robo_write_reg(robo_spi_t *softc,int reg,uint8_t *buf,int len)
166     cfe_spi_channel_t *chan = softc->spi_channel;
180 static int robo_fast_rack_poll(robo_spi_t *softc)
182     cfe_spi_channel_t *chan = softc->spi_channel;
204 static int robo_status_poll(robo_spi_t *softc,uint8_t mask,uint8_t val)
211         robo_read_reg(softc,R_ROBOSPI_SPI_STATUS,&status,1);
226 static int robo_select_page(robo_spi_t *softc,int page)
230     if (softc->cur_page == page) {
233     softc->cur_page = page;
236     robo_write_reg(softc,R_ROBOSPI_PAGE,&data,1);
241 static int robo_reset(robo_spi_t *softc)
244     softc->cur_page = -1;
245     robo_select_page(softc,0);
246     softc->cur_page = -1;
270     robo_spi_t *softc;
273     softc = (robo_spi_t *) KMALLOC(sizeof(robo_spi_t),0);
275     if (!softc) return;
283     softc->spi_channel = SPI_CHANNEL((int)probe_a);
284     softc->cur_page = -1;
288     cfe_attach(drv,softc,NULL,descr);
297     *  	   ctx - device context (can obtain our softc here)
306     robo_spi_t *softc = ctx->dev_softc;
308     return softc->spi_channel ? 0 : -1;
317     *  	   ctx - device context (can obtain our softc here)
327     robo_spi_t *softc = ctx->dev_softc;
329     cfe_spi_channel_t *chan = softc->spi_channel;
348     if (robo_status_poll(softc,M_SPISTAT_MDIO_START,0) < 0) {
350         robo_reset(softc);
354     robo_select_page(softc,page);
363     if (robo_fast_rack_poll(softc) < 0) {
366         robo_reset(softc);
378     robo_read_reg(softc,reg,bptr,1);
380     if (robo_status_poll(softc,M_SPISTAT_RACK,M_SPISTAT_RACK) < 0) {
382         robo_reset(softc);
387     robo_read_reg(softc,R_ROBOSPI_SPI_DATA,bptr,blen);
403     *  	   ctx - device context (can obtain our softc here)
413     robo_spi_t *softc = ctx->dev_softc;
434     if (robo_status_poll(softc,M_SPISTAT_MDIO_START,0) < 0) {
436         robo_reset(softc);
440     robo_select_page(softc,page);
442     robo_write_reg(softc,reg,bptr,blen);
453     *  	   ctx - device context (can obtain our softc here)
472     *  	   ctx - device context (can obtain our softc here)